Initial community commit

82 files changed, 39852 insertions, 0 deletions

diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/AUTHORS b/Src/external_dependencies/openmpt-trunk/include/flac/AUTHORS
new file mode 100644
index 00000000..1af15eee
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/AUTHORS
@@ -0,0 +1,61 @@
+/* FLAC - Free Lossless Audio Codec
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * This file is part the FLAC project.  FLAC is comprised of several
+ * components distributed under different licenses.  The codec libraries
+ * are distributed under Xiph.Org's BSD-like license (see the file
+ * COPYING.Xiph in this distribution).  All other programs, libraries, and
+ * plugins are distributed under the GPL (see COPYING.GPL).  The documentation
+ * is distributed under the Gnu FDL (see COPYING.FDL).  Each file in the
+ * FLAC distribution contains at the top the terms under which it may be
+ * distributed.
+ *
+ * Since this particular file is relevant to all components of FLAC,
+ * it may be distributed under the Xiph.Org license, which is the least
+ * restrictive of those mentioned above.  See the file COPYING.Xiph in this
+ * distribution.
+ */
+
+This file lists major contributors to the FLAC project. This list is not
+exhaustive. For an exhaustive list, see CHANGELOG.md or the git log, for
+example at https://github.com/xiph/flac/commits or
+https://gitlab.xiph.org/xiph/flac/commits
+
+Original author: Josh Coalson <jcoalson@users.sourceforge.net>
+Maintainer 2012-2020: Erik de Castro Lopo <erikd@mega-nerd.com>
+
+Website : https://www.xiph.org/flac/
+
+Other major contributors and their contributions:
+
+"lvqcl" <lvqcl@users.sourceforge.net>
+* Visual Studio build system.
+* Optimisations in the encoder and decoder.
+
+"Janne Hyvärinen" <cse@sci.fi>
+* Visual Studio build system.
+* Unicode handling on Windows.
+
+"Andrey Astafiev" <andrei@tvcell.ru>
+* Russian translation of the HTML documentation
+
+"Miroslav Lichvar" <lichvarm@phoenix.inf.upol.cz>
+* IA-32 assembly versions of several libFLAC routines
+
+"Brady Patterson" <bpat@users.sourceforge.net>
+* AIFF file support, PPC assembly versions of libFLAC routines
+
+"Daisuke Shimamura" <Daisuke_Shimamura@nifty.com>
+* i18n support in the XMMS plugin
+
+"X-Fixer" <x-fixer@narod.ru>
+* Configuration system, tag editing, and file info in the Winamp2 plugin
+
+"Matt Zimmerman" <mdz@debian.org>
+* Libtool/autoconf/automake make system, flac man page
+
+"Martijn van Beurden" <mvanb1@gmail.com>
+* Compression improvements
+* Fuzzer improvements and fixes for fuzz findings
+* Implementation of 32 bps encoder and decoder
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/COPYING.Xiph b/Src/external_dependencies/openmpt-trunk/include/flac/COPYING.Xiph
new file mode 100644
index 00000000..edd24f71
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/COPYING.Xiph
@@ -0,0 +1,29 @@
+Copyright (C) 2000-2009  Josh Coalson
+Copyright (C) 2011-2022  Xiph.Org Foundation
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+- Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+
+- Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+- Neither the name of the Xiph.Org Foundation nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/OpenMPT.txt b/Src/external_dependencies/openmpt-trunk/include/flac/OpenMPT.txt
new file mode 100644
index 00000000..70e3883a
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/OpenMPT.txt
@@ -0,0 +1,9 @@
+flac 1.4.1.

+The FLAC package has been left pretty much untouched, except for a few changes:

+ *  In `include/share/compat.h`, the Windows XP compatibility warning has been

+    disabled.

+ *  All modifications have been marked with "/* OpenMPT */".

+ *  Obviously, unnecessary folders and files (documentation, makefiles, etc.) have

+    been removed.

+ *  For building, premake is used to generate Visual Studio project files.

+    See ../build/premake/ for details.

diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/README b/Src/external_dependencies/openmpt-trunk/include/flac/README
new file mode 100644
index 00000000..bd2b0689
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/README
@@ -0,0 +1,337 @@
+/* FLAC - Free Lossless Audio Codec
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2016  Xiph.Org Foundation
+ *
+ * This file is part the FLAC project.  FLAC is comprised of several
+ * components distributed under different licenses.  The codec libraries
+ * are distributed under Xiph.Org's BSD-like license (see the file
+ * COPYING.Xiph in this distribution).  All other programs, libraries, and
+ * plugins are distributed under the LGPL or GPL (see COPYING.LGPL and
+ * COPYING.GPL).  The documentation is distributed under the Gnu FDL (see
+ * COPYING.FDL).  Each file in the FLAC distribution contains at the top the
+ * terms under which it may be distributed.
+ *
+ * Since this particular file is relevant to all components of FLAC,
+ * it may be distributed under the Xiph.Org license, which is the least
+ * restrictive of those mentioned above.  See the file COPYING.Xiph in this
+ * distribution.
+ */
+
+
+FLAC is an Open Source lossless audio codec developed by Josh Coalson from 2001
+to 2009. From 2012 to 2021 it was maintained by Erik de Castro Lopo. It continues to be maintained by various volunteers under the auspices of the Xiph.org Foundation.
+
+FLAC is comprised of
+  * `libFLAC', a library which implements reference encoders and
+    decoders for native FLAC and Ogg FLAC, and a metadata interface
+  * `libFLAC++', a C++ object wrapper library around libFLAC
+  * `flac', a command-line program for encoding and decoding files
+  * `metaflac', a command-line program for viewing and editing FLAC
+    metadata
+  * player plugin for XMMS
+  * user and API documentation
+
+The libraries (libFLAC, libFLAC++) are
+licensed under Xiph.org's BSD-like license (see COPYING.Xiph).  All other
+programs and plugins are licensed under the GNU General Public License
+(see COPYING.GPL).  The documentation is licensed under the GNU Free
+Documentation License (see COPYING.FDL).
+
+
+===============================================================================
+FLAC - 1.3.4 - Contents
+===============================================================================
+
+- Introduction
+- Prerequisites
+- Note to embedded developers
+- Building in a GNU environment
+- Building with Makefile.lite
+- Building with MSVC
+- Building on Mac OS X
+- Building with CMake
+
+
+===============================================================================
+Introduction
+===============================================================================
+
+This is the source release for the FLAC project.  See
+
+	doc/html/index.html
+
+for full documentation.
+
+A brief description of the directory tree:
+
+	doc/          the HTML documentation
+	examples/     example programs demonstrating the use of libFLAC and libFLAC++
+	include/      public include files for libFLAC and libFLAC++
+	man/          the man pages for `flac' and `metaflac'
+	src/          the source code and private headers
+	test/         the test scripts
+
+If you have questions about building FLAC that this document does not answer,
+please submit them at the following tracker so this document can be improved:
+
+	https://sourceforge.net/p/flac/support-requests/
+
+
+===============================================================================
+Prerequisites
+===============================================================================
+
+To build FLAC with support for Ogg FLAC you must have built and installed
+libogg according to the specific instructions below.  You must have
+libogg 1.1.2 or greater, or there will be seeking problems with Ogg FLAC.
+
+If you are building on x86 and want the assembly optimizations, you will
+need to have NASM >= 0.98.30 installed according to the specific instructions
+below.
+
+
+===============================================================================
+Note to embedded developers
+===============================================================================
+
+libFLAC has grown larger over time as more functionality has been
+included, but much of it may be unnecessary for a particular embedded
+implementation.  Unused parts may be pruned by some simple editing of
+configure.ac and src/libFLAC/Makefile.am; the following dependency
+graph shows which modules may be pruned without breaking things
+further down:
+
+metadata.h
+	stream_decoder.h
+	format.h
+
+stream_encoder.h
+	stream_decoder.h
+	format.h
+
+stream_decoder.h
+	format.h
+
+In other words, for pure decoding applications, both the stream encoder
+and metadata editing interfaces can be safely removed.
+
+There is a section dedicated to embedded use in the libFLAC API
+HTML documentation (see doc/html/api/index.html).
+
+Also, there are several places in the libFLAC code with comments marked
+with "OPT:" where a #define can be changed to enable code that might be
+faster on a specific platform.  Experimenting with these can yield faster
+binaries.
+
+
+===============================================================================
+Building in a GNU environment
+===============================================================================
+
+FLAC uses autoconf and libtool for configuring and building.
+Better documentation for these will be forthcoming, but in
+general, this should work:
+
+./configure && make && make check && make install
+
+The 'make check' step is optional; omit it to skip all the tests,
+which can take several hours and use around 70-80 megs of disk space.
+Even though it will stop with an explicit message on any failure, it
+does print out a lot of stuff so you might want to capture the output
+to a file if you're having a problem.  Also, don't run 'make check'
+as root because it confuses some of the tests.
+
+NOTE: Despite our best efforts it's entirely possible to have
+problems when using older versions of autoconf, automake, or
+libtool.  If you have the latest versions and still can't get it
+to work, see the next section on Makefile.lite.
+
+There are a few FLAC-specific arguments you can give to
+`configure':
+
+--enable-debug : Builds everything with debug symbols and some
+extra (and more verbose) error checking.
+
+--disable-asm-optimizations : Disables the compilation of the
+assembly routines.  Many routines have assembly versions for
+speed and `configure' is pretty good about knowing what is
+supported, but you can use this option to build only from the
+C sources.  May be necessary for building on OS X (Intel).
+
+--enable-sse : If you are building for an x86 CPU that supports
+SSE instructions, you can enable some of the faster routines
+if your operating system also supports SSE instructions.  flac
+can tell if the CPU supports the instructions but currently has
+no way to test if the OS does, so if it does, you must pass
+this argument to configure to use the SSE routines.  If flac
+crashes when built with this option you will have to go back and
+configure without --enable-sse.  Note that
+--disable-asm-optimizations implies --disable-sse.
+
+--enable-local-xmms-plugin : Installs the FLAC XMMS plugin in
+$HOME/.xmms/Plugins, instead of the global XMMS plugin area
+(usually /usr/lib/xmms/Input).
+
+--with-ogg=
+--with-xmms-prefix=
+--with-libiconv-prefix=
+Use these if you have these packages but configure can't find them.
+
+If you want to build completely from scratch (i.e. starting with just
+configure.ac and Makefile.am) you should be able to just run 'autogen.sh'
+but make sure and read the comments in that file first.
+
+
+===============================================================================
+Building with Makefile.lite
+===============================================================================
+
+There is a more lightweight build system for do-it-yourself-ers.
+It is also useful if configure isn't working, which may be the
+case since lately we've had some problems with different versions
+of automake and libtool.  The Makefile.lite system should work
+on GNU systems with few or no adjustments.
+
+From the top level just 'make -f Makefile.lite'.  You can
+specify zero or one optional target from 'release', 'debug',
+'test', or 'clean'.  The default is 'release'.  There is no
+'install' target but everything you need will end up in the
+obj/ directory.
+
+If you are not on an x86 system or you don't have nasm, you
+may have to change the DEFINES in src/libFLAC/Makefile.lite.  If
+you don't have nasm, remove -DFLAC__HAS_NASM.  If your target is
+not an x86, change -DFLAC__CPU_IA32 to -DFLAC__CPU_UNKNOWN.
+
+
+===============================================================================
+Building with MSVC
+===============================================================================
+
+When building with MSVC, using CMake is preferred, see Building with
+CMake for more information. Building with MSVC using solution files
+is deprecated and these files will be removed in the future.
+
+There are .vcproj projects and a master FLAC.sln solution to build all
+the libraries and executables with MSVC 2005 or newer.
+
+Prerequisite: you must have the Ogg libraries installed as described
+later.
+
+Prerequisite: you must have nasm installed, and nasm.exe must be in
+your PATH, or the path to nasm.exe must be added to the list of
+directories for executable files in the MSVC global options.
+
+To build everything, run Visual Studio, do File|Open and open FLAC.sln.
+From the dropdown in the toolbar, select "Release" instead of "Debug",
+then do Build|Build Solution.
+
+This will build all libraries both statically (e.g.
+objs\release\lib\libFLAC_static.lib) and as DLLs (e.g.
+objs\release\lib\libFLAC.dll), and it will build all binaries, statically
+linked (e.g. objs\release\bin\flac.exe).
+
+Everything will end up in the "objs" directory.  DLLs and .exe files
+are all that are needed and can be copied to an installation area and
+added to the PATH.
+
+By default the code is configured with Ogg support. Before building FLAC
+you will need to get the Ogg source distribution
+(see http://xiph.org/downloads/), build libogg_static.lib (load
+win32\libogg_static.sln, change solution configuration to "Release" and
+code generation to "Multi-threaded (/MT)", then build), copy libogg_static.lib
+into FLAC's 'objs\release\lib' directory, and copy the entire include\ogg tree
+into FLAC's 'include' directory (so that there is an 'ogg' directory in FLAC's
+'include' directory with the files ogg.h, os_types.h and config_types.h).
+
+If you want to build without Ogg support, instead edit all .vcproj files
+and remove any "FLAC__HAS_OGG" definitions.
+
+
+===============================================================================
+Building on Mac OS X
+===============================================================================
+
+If you have Fink or a recent version of OS X with the proper autotools,
+the GNU flow above should work.
+
+
+===============================================================================
+Building with CMake
+===============================================================================
+
+CMake is a cross-platform build system. FLAC can be built on Windows, Linux, Mac
+OS X using CMake.
+
+You can use either CMake's CLI or GUI. We recommend you to have a separate build
+folder outside the repository in order to not spoil it with generated files.
+
+CLI
+---
+   Go to your build folder and run something like this:
+
+   /path/to/flac/build$ cmake /path/to/flac/source
+
+   or e.g. in Windows shell
+
+   C:\path\to\flac\build> cmake \path\to\flac\source
+   (provided that cmake is in your %PATH% variable)
+
+   That will generate build scripts for the default build system (e.g. Makefiles
+   for UNIX). After that you start build with a command like this:
+
+   /path/to/flac/build$ make
+
+   And afterwards you can run tests or install the built libraries and headers
+
+   /path/to/flac/build$ make test
+   /path/to/flac/build$ make install
+
+   If you want use a build system other than default add -G flag to cmake, e.g.:
+
+   /path/to/flac/build$ cmake /path/to/flac/source -GNinja
+   /path/to/flac/build$ ninja
+
+   or:
+
+   /path/to/flac/build$ cmake /path/to/flac/source -GXcode
+
+   Use cmake --help to see the list of available generators.
+
+   If you have OGG on your system you can tell CMake to use it:
+
+   /path/to/flac/build$ cmake /path/to/flac/source -DWITH_OGG=ON
+
+   If CMake fails to find it you can help CMake by specifying the exact path:
+
+   /path/to/flac/build$ cmake /path/to/flac/source -DWITH_OGG=ON -DOGG_ROOT=/path/to/ogg
+
+   CMake will search for OGG by default so if you don't have it you can tell
+   cmake to not do so:
+
+   /path/to/flac/build$ cmake /path/to/flac/source -DWITH_OGG=OFF
+
+   Other FLAC's options (e.g. building C++ lib or docs) can also be put to cmake
+   through -D flag.
+
+GUI
+---
+   It is likely that you would prefer to use it on Windows building for Visual
+   Studio.  It's in essence the same process as building using CLI.
+
+   Open cmake-gui. In the window select a source directory (the repository's
+   root), a build directory (some other directory outside the repository). Then
+   press button "Configure". CMake will ask you which build system you prefer.
+   Choose that version of Visual Studio which you have on your system, choose
+   whether you want to build for x86 or amd64. Press OK. After CMake finishes
+   press "Generate" button, and after that "Open Project". In response CMake
+   will launch Visual Studio and open the generated solution. You can use it as
+   usual but remember that it was generated by CMake. That means that your
+   changes (e.g. some addidional compile flags) will be lost when you run CMake
+   next time.
+
+   Again, if you have OGG on your system set WITH_OGG flag in the list of
+   variables in cmake-gui window before you press "Configure".
+
+   If CMake fails to find MSVC compiler then running cmake-gui from MS Developer
+   comand prompt should help.
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/all.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/all.h
new file mode 100644
index 00000000..8c6cdc3c
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/all.h
@@ -0,0 +1,450 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__ALL_H
+#define FLAC__ALL_H
+
+#include "export.h"
+
+#include "assert.h"
+#include "callback.h"
+#include "format.h"
+#include "metadata.h"
+#include "ordinals.h"
+#include "stream_decoder.h"
+#include "stream_encoder.h"
+
+/** \mainpage
+ *
+ * \section intro Introduction
+ *
+ * This is the documentation for the FLAC C and C++ APIs.  It is
+ * highly interconnected; this introduction should give you a top
+ * level idea of the structure and how to find the information you
+ * need.  As a prerequisite you should have at least a basic
+ * knowledge of the FLAC format, documented
+ * <A HREF="../format.html">here</A>.
+ *
+ * \section c_api FLAC C API
+ *
+ * The FLAC C API is the interface to libFLAC, a set of structures
+ * describing the components of FLAC streams, and functions for
+ * encoding and decoding streams, as well as manipulating FLAC
+ * metadata in files.  The public include files will be installed
+ * in your include area (for example /usr/include/FLAC/...).
+ *
+ * By writing a little code and linking against libFLAC, it is
+ * relatively easy to add FLAC support to another program.  The
+ * library is licensed under <A HREF="../license.html">Xiph's BSD license</A>.
+ * Complete source code of libFLAC as well as the command-line
+ * encoder and plugins is available and is a useful source of
+ * examples.
+ *
+ * Aside from encoders and decoders, libFLAC provides a powerful
+ * metadata interface for manipulating metadata in FLAC files.  It
+ * allows the user to add, delete, and modify FLAC metadata blocks
+ * and it can automatically take advantage of PADDING blocks to avoid
+ * rewriting the entire FLAC file when changing the size of the
+ * metadata.
+ *
+ * libFLAC usually only requires the standard C library and C math
+ * library. In particular, threading is not used so there is no
+ * dependency on a thread library. However, libFLAC does not use
+ * global variables and should be thread-safe.
+ *
+ * libFLAC also supports encoding to and decoding from Ogg FLAC.
+ * However the metadata editing interfaces currently have limited
+ * read-only support for Ogg FLAC files.
+ *
+ * \section cpp_api FLAC C++ API
+ *
+ * The FLAC C++ API is a set of classes that encapsulate the
+ * structures and functions in libFLAC.  They provide slightly more
+ * functionality with respect to metadata but are otherwise
+ * equivalent.  For the most part, they share the same usage as
+ * their counterparts in libFLAC, and the FLAC C API documentation
+ * can be used as a supplement.  The public include files
+ * for the C++ API will be installed in your include area (for
+ * example /usr/include/FLAC++/...).
+ *
+ * libFLAC++ is also licensed under
+ * <A HREF="../license.html">Xiph's BSD license</A>.
+ *
+ * \section getting_started Getting Started
+ *
+ * A good starting point for learning the API is to browse through
+ * the <A HREF="modules.html">modules</A>.  Modules are logical
+ * groupings of related functions or classes, which correspond roughly
+ * to header files or sections of header files.  Each module includes a
+ * detailed description of the general usage of its functions or
+ * classes.
+ *
+ * From there you can go on to look at the documentation of
+ * individual functions.  You can see different views of the individual
+ * functions through the links in top bar across this page.
+ *
+ * If you prefer a more hands-on approach, you can jump right to some
+ * <A HREF="../documentation_example_code.html">example code</A>.
+ *
+ * \section porting_guide Porting Guide
+ *
+ * Starting with FLAC 1.1.3 a \link porting Porting Guide \endlink
+ * has been introduced which gives detailed instructions on how to
+ * port your code to newer versions of FLAC.
+ *
+ * \section embedded_developers Embedded Developers
+ *
+ * libFLAC has grown larger over time as more functionality has been
+ * included, but much of it may be unnecessary for a particular embedded
+ * implementation.  Unused parts may be pruned by some simple editing of
+ * src/libFLAC/Makefile.am.  In general, the decoders, encoders, and
+ * metadata interface are all independent from each other.
+ *
+ * It is easiest to just describe the dependencies:
+ *
+ * - All modules depend on the \link flac_format Format \endlink module.
+ * - The decoders and encoders depend on the bitbuffer.
+ * - The decoder is independent of the encoder.  The encoder uses the
+ *   decoder because of the verify feature, but this can be removed if
+ *   not needed.
+ * - Parts of the metadata interface require the stream decoder (but not
+ *   the encoder).
+ * - Ogg support is selectable through the compile time macro
+ *   \c FLAC__HAS_OGG.
+ *
+ * For example, if your application only requires the stream decoder, no
+ * encoder, and no metadata interface, you can remove the stream encoder
+ * and the metadata interface, which will greatly reduce the size of the
+ * library.
+ *
+ * Also, there are several places in the libFLAC code with comments marked
+ * with "OPT:" where a \#define can be changed to enable code that might be
+ * faster on a specific platform.  Experimenting with these can yield faster
+ * binaries.
+ */
+
+/** \defgroup porting Porting Guide for New Versions
+ *
+ * This module describes differences in the library interfaces from
+ * version to version.  It assists in the porting of code that uses
+ * the libraries to newer versions of FLAC.
+ *
+ * One simple facility for making porting easier that has been added
+ * in FLAC 1.1.3 is a set of \#defines in \c export.h of each
+ * library's includes (e.g. \c include/FLAC/export.h).  The
+ * \#defines mirror the libraries'
+ * <A HREF="http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning">libtool version numbers</A>,
+ * e.g. in libFLAC there are \c FLAC_API_VERSION_CURRENT,
+ * \c FLAC_API_VERSION_REVISION, and \c FLAC_API_VERSION_AGE.
+ * These can be used to support multiple versions of an API during the
+ * transition phase, e.g.
+ *
+ * \code
+ * #if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
+ *   legacy code
+ * #else
+ *   new code
+ * #endif
+ * \endcode
+ *
+ * The source will work for multiple versions and the legacy code can
+ * easily be removed when the transition is complete.
+ *
+ * Another available symbol is FLAC_API_SUPPORTS_OGG_FLAC (defined in
+ * include/FLAC/export.h), which can be used to determine whether or not
+ * the library has been compiled with support for Ogg FLAC.  This is
+ * simpler than trying to call an Ogg init function and catching the
+ * error.
+ */
+
+/** \defgroup porting_1_1_2_to_1_1_3 Porting from FLAC 1.1.2 to 1.1.3
+ *  \ingroup porting
+ *
+ *  \brief
+ *  This module describes porting from FLAC 1.1.2 to FLAC 1.1.3.
+ *
+ * The main change between the APIs in 1.1.2 and 1.1.3 is that they have
+ * been simplified.  First, libOggFLAC has been merged into libFLAC and
+ * libOggFLAC++ has been merged into libFLAC++.  Second, both the three
+ * decoding layers and three encoding layers have been merged into a
+ * single stream decoder and stream encoder.  That is, the functionality
+ * of FLAC__SeekableStreamDecoder and FLAC__FileDecoder has been merged
+ * into FLAC__StreamDecoder, and FLAC__SeekableStreamEncoder and
+ * FLAC__FileEncoder into FLAC__StreamEncoder.  Only the
+ * FLAC__StreamDecoder and FLAC__StreamEncoder remain.  What this means
+ * is there is now a single API that can be used to encode or decode
+ * streams to/from native FLAC or Ogg FLAC and the single API can work
+ * on both seekable and non-seekable streams.
+ *
+ * Instead of creating an encoder or decoder of a certain layer, now the
+ * client will always create a FLAC__StreamEncoder or
+ * FLAC__StreamDecoder.  The old layers are now differentiated by the
+ * initialization function.  For example, for the decoder,
+ * FLAC__stream_decoder_init() has been replaced by
+ * FLAC__stream_decoder_init_stream().  This init function takes
+ * callbacks for the I/O, and the seeking callbacks are optional.  This
+ * allows the client to use the same object for seekable and
+ * non-seekable streams.  For decoding a FLAC file directly, the client
+ * can use FLAC__stream_decoder_init_file() and pass just a filename
+ * and fewer callbacks; most of the other callbacks are supplied
+ * internally.  For situations where fopen()ing by filename is not
+ * possible (e.g. Unicode filenames on Windows) the client can instead
+ * open the file itself and supply the FILE* to
+ * FLAC__stream_decoder_init_FILE().  The init functions now returns a
+ * FLAC__StreamDecoderInitStatus instead of FLAC__StreamDecoderState.
+ * Since the callbacks and client data are now passed to the init
+ * function, the FLAC__stream_decoder_set_*_callback() functions and
+ * FLAC__stream_decoder_set_client_data() are no longer needed.  The
+ * rest of the calls to the decoder are the same as before.
+ *
+ * There are counterpart init functions for Ogg FLAC, e.g.
+ * FLAC__stream_decoder_init_ogg_stream().  All the rest of the calls
+ * and callbacks are the same as for native FLAC.
+ *
+ * As an example, in FLAC 1.1.2 a seekable stream decoder would have
+ * been set up like so:
+ *
+ * \code
+ * FLAC__SeekableStreamDecoder *decoder = FLAC__seekable_stream_decoder_new();
+ * if(decoder == NULL) do_something;
+ * FLAC__seekable_stream_decoder_set_md5_checking(decoder, true);
+ * [... other settings ...]
+ * FLAC__seekable_stream_decoder_set_read_callback(decoder, my_read_callback);
+ * FLAC__seekable_stream_decoder_set_seek_callback(decoder, my_seek_callback);
+ * FLAC__seekable_stream_decoder_set_tell_callback(decoder, my_tell_callback);
+ * FLAC__seekable_stream_decoder_set_length_callback(decoder, my_length_callback);
+ * FLAC__seekable_stream_decoder_set_eof_callback(decoder, my_eof_callback);
+ * FLAC__seekable_stream_decoder_set_write_callback(decoder, my_write_callback);
+ * FLAC__seekable_stream_decoder_set_metadata_callback(decoder, my_metadata_callback);
+ * FLAC__seekable_stream_decoder_set_error_callback(decoder, my_error_callback);
+ * FLAC__seekable_stream_decoder_set_client_data(decoder, my_client_data);
+ * if(FLAC__seekable_stream_decoder_init(decoder) != FLAC__SEEKABLE_STREAM_DECODER_OK) do_something;
+ * \endcode
+ *
+ * In FLAC 1.1.3 it is like this:
+ *
+ * \code
+ * FLAC__StreamDecoder *decoder = FLAC__stream_decoder_new();
+ * if(decoder == NULL) do_something;
+ * FLAC__stream_decoder_set_md5_checking(decoder, true);
+ * [... other settings ...]
+ * if(FLAC__stream_decoder_init_stream(
+ *   decoder,
+ *   my_read_callback,
+ *   my_seek_callback,      // or NULL
+ *   my_tell_callback,      // or NULL
+ *   my_length_callback,    // or NULL
+ *   my_eof_callback,       // or NULL
+ *   my_write_callback,
+ *   my_metadata_callback,  // or NULL
+ *   my_error_callback,
+ *   my_client_data
+ * ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
+ * \endcode
+ *
+ * or you could do;
+ *
+ * \code
+ * [...]
+ * FILE *file = fopen("somefile.flac","rb");
+ * if(file == NULL) do_somthing;
+ * if(FLAC__stream_decoder_init_FILE(
+ *   decoder,
+ *   file,
+ *   my_write_callback,
+ *   my_metadata_callback,  // or NULL
+ *   my_error_callback,
+ *   my_client_data
+ * ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
+ * \endcode
+ *
+ * or just:
+ *
+ * \code
+ * [...]
+ * if(FLAC__stream_decoder_init_file(
+ *   decoder,
+ *   "somefile.flac",
+ *   my_write_callback,
+ *   my_metadata_callback,  // or NULL
+ *   my_error_callback,
+ *   my_client_data
+ * ) != FLAC__STREAM_DECODER_INIT_STATUS_OK) do_something;
+ * \endcode
+ *
+ * Another small change to the decoder is in how it handles unparseable
+ * streams.  Before, when the decoder found an unparseable stream
+ * (reserved for when the decoder encounters a stream from a future
+ * encoder that it can't parse), it changed the state to
+ * \c FLAC__STREAM_DECODER_UNPARSEABLE_STREAM.  Now the decoder instead
+ * drops sync and calls the error callback with a new error code
+ * \c FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM.  This is
+ * more robust.  If your error callback does not discriminate on the the
+ * error state, your code does not need to be changed.
+ *
+ * The encoder now has a new setting:
+ * FLAC__stream_encoder_set_apodization().  This is for setting the
+ * method used to window the data before LPC analysis.  You only need to
+ * add a call to this function if the default is not suitable.   There
+ * are also two new convenience functions that may be useful:
+ * FLAC__metadata_object_cuesheet_calculate_cddb_id() and
+ * FLAC__metadata_get_cuesheet().
+ *
+ * The \a bytes parameter to FLAC__StreamDecoderReadCallback,
+ * FLAC__StreamEncoderReadCallback, and FLAC__StreamEncoderWriteCallback
+ * is now \c size_t instead of \c uint32_t.
+ */
+
+/** \defgroup porting_1_1_3_to_1_1_4 Porting from FLAC 1.1.3 to 1.1.4
+ *  \ingroup porting
+ *
+ *  \brief
+ *  This module describes porting from FLAC 1.1.3 to FLAC 1.1.4.
+ *
+ * There were no changes to any of the interfaces from 1.1.3 to 1.1.4.
+ * There was a slight change in the implementation of
+ * FLAC__stream_encoder_set_metadata(); the function now makes a copy
+ * of the \a metadata array of pointers so the client no longer needs
+ * to maintain it after the call.  The objects themselves that are
+ * pointed to by the array are still not copied though and must be
+ * maintained until the call to FLAC__stream_encoder_finish().
+ */
+
+/** \defgroup porting_1_1_4_to_1_2_0 Porting from FLAC 1.1.4 to 1.2.0
+ *  \ingroup porting
+ *
+ *  \brief
+ *  This module describes porting from FLAC 1.1.4 to FLAC 1.2.0.
+ *
+ * There were only very minor changes to the interfaces from 1.1.4 to 1.2.0.
+ * In libFLAC, \c FLAC__format_sample_rate_is_subset() was added.
+ * In libFLAC++, \c FLAC::Decoder::Stream::get_decode_position() was added.
+ *
+ * Finally, value of the constant \c FLAC__FRAME_HEADER_RESERVED_LEN
+ * has changed to reflect the conversion of one of the reserved bits
+ * into active use.  It used to be \c 2 and now is \c 1.  However the
+ * FLAC frame header length has not changed, so to skip the proper
+ * number of bits, use \c FLAC__FRAME_HEADER_RESERVED_LEN +
+ * \c FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN
+ */
+
+/** \defgroup porting_1_3_4_to_1_4_0 Porting from FLAC 1.3.4 to 1.4.0
+ *  \ingroup porting
+ *
+ *  \brief
+ *  This module describes porting from FLAC 1.3.4 to FLAC 1.4.0.
+ *
+ * \section porting_1_3_4_to_1_4_0_summary Summary
+ *
+ * Between FLAC 1.3.4 and FLAC 1.4.0, there have four breaking changes
+ * - the function get_client_data_from_decoder has been renamed to
+ *   FLAC__get_decoder_client_data
+ * - some data types in the FLAC__Frame struct have changed
+ * - all functions resizing metadata blocks now return the object
+ *   untouched if memory allocation fails, whereas previously the
+ *   handling varied and was more or less undefined
+ * - all functions accepting a filename now take UTF-8 encoded filenames
+ *   on Windows instead of filenames in the current codepage
+ *
+ * Furthermore, there have been the following additions
+ * - the functions FLAC__stream_encoder_set_limit_min_bitrate,
+ *   FLAC__stream_encoder_get_limit_min_bitrate,
+ *   FLAC::encoder::file::set_limit_min_bitrate() and
+ *   FLAC::encoder::file::get_limit_min_bitrate() have been added
+ * - Added FLAC__STREAM_DECODER_ERROR_STATUS_BAD_METADATA to the
+ *   FLAC__StreamDecoderErrorStatus enum
+ *
+ * \section porting_1_3_4_to_1_4_0_breaking Breaking changes
+ *
+ * The function \b get_client_data_from_decoder was added in FLAC 1.3.3
+ * but did not follow the API naming convention and was not properly
+ * exported. The function is now renamed and properly integrated as
+ * FLAC__stream_decoder_get_client_data
+ *
+ * To accomodate encoding and decoding 32-bit int PCM, some data types
+ * in the \b FLAC__frame struct were changed. Specifically, warmup
+ * in both the FLAC__Subframe_Fixed struc and the FLAC__Subframe_LPC
+ * struct is changed from FLAC__int32 to FLAC__int64. Also, value
+ * in the FLAC__Subframe_Constant is changed from FLAC__int32 to
+ * FLAC__int64. Finally, in FLAC__Subframe_Verbatim struct data is
+ * changes from a FLAC__int32 array to a union containing a FLAC__int32
+ * array and a FLAC__int64 array. Also, a new member is added,
+ * data_type, which clarifies whether the FLAC__int32 or FLAC__int64
+ * array is in use.
+ *
+ * Furthermore, the following functions now return the object untouched
+ * if memory allocation fails, whereas previously the handling varied
+ * and was more or less undefined
+ *
+ * - FLAC__metadata_object_seektable_resize_points
+ * - FLAC__metadata_object_vorbiscomment_resize_comments
+ * - FLAC__metadata_object_cuesheet_track_resize_indices
+ * - FLAC__metadata_object_cuesheet_resize_tracks
+ *
+ * The last breaking change is that all API functions taking a filename
+ * as an argument now, on Windows, must be supplied with that filename
+ * in the UTF-8 character encoding instead of using the current code
+ * page. libFLAC internally translates these UTF-8 encoded filenames to
+ * an appropriate representation to use with _wfopen. On all other
+ * systems, filename is passed to fopen without any translation, as it
+ * in libFLAC 1.3.4 and earlier.
+ *
+ * \section porting_1_3_4_to_1_4_0_additions Additions
+ *
+ * To aid in creating properly streamable FLAC files, a set of functions
+ * was added to make it possible to enfore a minimum bitrate to files
+ * created through libFLAC's stream_encoder.h interface. With this
+ * function enabled the resulting FLAC files have a minimum bitrate of
+ * 1bit/sample independent of the number of channels, i.e. 48kbit/s for
+ * 48kHz. This can be beneficial for streaming, as very low bitrates for
+ * silent sections compressed with 'constant' subframes can result in a
+ * bitrate of 1kbit/s, creating problems with clients that aren't aware
+ * of this possibility and buffer too much data.
+ *
+ * Finally, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_METADATA was added to
+ * the FLAC__StreamDecoderErrorStatus enum to signal that the decoder
+ * encountered unreadable metadata.
+ *
+ */
+
+/** \defgroup flac FLAC C API
+ *
+ * The FLAC C API is the interface to libFLAC, a set of structures
+ * describing the components of FLAC streams, and functions for
+ * encoding and decoding streams, as well as manipulating FLAC
+ * metadata in files.
+ *
+ * You should start with the format components as all other modules
+ * are dependent on it.
+ */
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/assert.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/assert.h
new file mode 100644
index 00000000..aee23c8c
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/assert.h
@@ -0,0 +1,46 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__ASSERT_H
+#define FLAC__ASSERT_H
+
+/* we need this since some compilers (like MSVC) leave assert()s on release code (and we don't want to use their ASSERT) */
+#ifndef NDEBUG
+#include <assert.h>
+#define FLAC__ASSERT(x) assert(x)
+#define FLAC__ASSERT_DECLARATION(x) x
+#else
+#define FLAC__ASSERT(x)
+#define FLAC__ASSERT_DECLARATION(x)
+#endif
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/callback.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/callback.h
new file mode 100644
index 00000000..d00878b6
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/callback.h
@@ -0,0 +1,185 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__CALLBACK_H
+#define FLAC__CALLBACK_H
+
+#include "ordinals.h"
+#include <stdlib.h> /* for size_t */
+
+/** \file include/FLAC/callback.h
+ *
+ *  \brief
+ *  This module defines the structures for describing I/O callbacks
+ *  to the other FLAC interfaces.
+ *
+ *  See the detailed documentation for callbacks in the
+ *  \link flac_callbacks callbacks \endlink module.
+ */
+
+/** \defgroup flac_callbacks FLAC/callback.h: I/O callback structures
+ *  \ingroup flac
+ *
+ *  \brief
+ *  This module defines the structures for describing I/O callbacks
+ *  to the other FLAC interfaces.
+ *
+ *  The purpose of the I/O callback functions is to create a common way
+ *  for the metadata interfaces to handle I/O.
+ *
+ *  Originally the metadata interfaces required filenames as the way of
+ *  specifying FLAC files to operate on.  This is problematic in some
+ *  environments so there is an additional option to specify a set of
+ *  callbacks for doing I/O on the FLAC file, instead of the filename.
+ *
+ *  In addition to the callbacks, a FLAC__IOHandle type is defined as an
+ *  opaque structure for a data source.
+ *
+ *  The callback function prototypes are similar (but not identical) to the
+ *  stdio functions fread, fwrite, fseek, ftell, feof, and fclose.  If you use
+ *  stdio streams to implement the callbacks, you can pass fread, fwrite, and
+ *  fclose anywhere a FLAC__IOCallback_Read, FLAC__IOCallback_Write, or
+ *  FLAC__IOCallback_Close is required, and a FILE* anywhere a FLAC__IOHandle
+ *  is required.  \warning You generally CANNOT directly use fseek or ftell
+ *  for FLAC__IOCallback_Seek or FLAC__IOCallback_Tell since on most systems
+ *  these use 32-bit offsets and FLAC requires 64-bit offsets to deal with
+ *  large files.  You will have to find an equivalent function (e.g. ftello),
+ *  or write a wrapper.  The same is true for feof() since this is usually
+ *  implemented as a macro, not as a function whose address can be taken.
+ *
+ * \{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** This is the opaque handle type used by the callbacks.  Typically
+ *  this is a \c FILE* or address of a file descriptor.
+ */
+typedef void* FLAC__IOHandle;
+
+/** Signature for the read callback.
+ *  The signature and semantics match POSIX fread() implementations
+ *  and can generally be used interchangeably.
+ *
+ * \param  ptr      The address of the read buffer.
+ * \param  size     The size of the records to be read.
+ * \param  nmemb    The number of records to be read.
+ * \param  handle   The handle to the data source.
+ * \retval size_t
+ *    The number of records read.
+ */
+typedef size_t (*FLAC__IOCallback_Read) (void *ptr, size_t size, size_t nmemb, FLAC__IOHandle handle);
+
+/** Signature for the write callback.
+ *  The signature and semantics match POSIX fwrite() implementations
+ *  and can generally be used interchangeably.
+ *
+ * \param  ptr      The address of the write buffer.
+ * \param  size     The size of the records to be written.
+ * \param  nmemb    The number of records to be written.
+ * \param  handle   The handle to the data source.
+ * \retval size_t
+ *    The number of records written.
+ */
+typedef size_t (*FLAC__IOCallback_Write) (const void *ptr, size_t size, size_t nmemb, FLAC__IOHandle handle);
+
+/** Signature for the seek callback.
+ *  The signature and semantics mostly match POSIX fseek() WITH ONE IMPORTANT
+ *  EXCEPTION: the offset is a 64-bit type whereas fseek() is generally 'long'
+ *  and 32-bits wide.
+ *
+ * \param  handle   The handle to the data source.
+ * \param  offset   The new position, relative to \a whence
+ * \param  whence   \c SEEK_SET, \c SEEK_CUR, or \c SEEK_END
+ * \retval int
+ *    \c 0 on success, \c -1 on error.
+ */
+typedef int (*FLAC__IOCallback_Seek) (FLAC__IOHandle handle, FLAC__int64 offset, int whence);
+
+/** Signature for the tell callback.
+ *  The signature and semantics mostly match POSIX ftell() WITH ONE IMPORTANT
+ *  EXCEPTION: the offset is a 64-bit type whereas ftell() is generally 'long'
+ *  and 32-bits wide.
+ *
+ * \param  handle   The handle to the data source.
+ * \retval FLAC__int64
+ *    The current position on success, \c -1 on error.
+ */
+typedef FLAC__int64 (*FLAC__IOCallback_Tell) (FLAC__IOHandle handle);
+
+/** Signature for the EOF callback.
+ *  The signature and semantics mostly match POSIX feof() but WATCHOUT:
+ *  on many systems, feof() is a macro, so in this case a wrapper function
+ *  must be provided instead.
+ *
+ * \param  handle   The handle to the data source.
+ * \retval int
+ *    \c 0 if not at end of file, nonzero if at end of file.
+ */
+typedef int (*FLAC__IOCallback_Eof) (FLAC__IOHandle handle);
+
+/** Signature for the close callback.
+ *  The signature and semantics match POSIX fclose() implementations
+ *  and can generally be used interchangeably.
+ *
+ * \param  handle   The handle to the data source.
+ * \retval int
+ *    \c 0 on success, \c EOF on error.
+ */
+typedef int (*FLAC__IOCallback_Close) (FLAC__IOHandle handle);
+
+/** A structure for holding a set of callbacks.
+ *  Each FLAC interface that requires a FLAC__IOCallbacks structure will
+ *  describe which of the callbacks are required.  The ones that are not
+ *  required may be set to NULL.
+ *
+ *  If the seek requirement for an interface is optional, you can signify that
+ *  a data source is not seekable by setting the \a seek field to \c NULL.
+ */
+typedef struct {
+	FLAC__IOCallback_Read read;   /**< See FLAC__IOCallbacks */
+	FLAC__IOCallback_Write write; /**< See FLAC__IOCallbacks */
+	FLAC__IOCallback_Seek seek;   /**< See FLAC__IOCallbacks */
+	FLAC__IOCallback_Tell tell;   /**< See FLAC__IOCallbacks */
+	FLAC__IOCallback_Eof eof;     /**< See FLAC__IOCallbacks */
+	FLAC__IOCallback_Close close; /**< See FLAC__IOCallbacks */
+} FLAC__IOCallbacks;
+
+/* \} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/export.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/export.h
new file mode 100644
index 00000000..983f13b1
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/export.h
@@ -0,0 +1,115 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__EXPORT_H
+#define FLAC__EXPORT_H
+
+/** \file include/FLAC/export.h
+ *
+ *  \brief
+ *  This module contains \#defines and symbols for exporting function
+ *  calls, and providing version information and compiled-in features.
+ *
+ *  See the \link flac_export export \endlink module.
+ */
+
+/** \defgroup flac_export FLAC/export.h: export symbols
+ *  \ingroup flac
+ *
+ *  \brief
+ *  This module contains \#defines and symbols for exporting function
+ *  calls, and providing version information and compiled-in features.
+ *
+ *  If you are compiling for Windows (with Visual Studio or MinGW for
+ *  example) and will link to the static library (libFLAC++.lib) you
+ *  should define FLAC__NO_DLL in your project to make sure the symbols
+ *  are exported properly.
+ *
+ * \{
+ */
+
+/** This \#define is used internally in libFLAC and its headers to make
+ * sure the correct symbols are exported when working with shared
+ * libraries. On Windows, this \#define is set to __declspec(dllexport)
+ * when compiling libFLAC into a library and to __declspec(dllimport)
+ * when the headers are used to link to that DLL. On non-Windows systems
+ * it is used to set symbol visibility.
+ *
+ * Because of this, the define FLAC__NO_DLL must be defined when linking
+ * to libFLAC statically or linking will fail.
+ */
+/* This has grown quite complicated. FLAC__NO_DLL is used by MSVC sln
+ * files and CMake, which build either static or shared. autotools can
+ * build static, shared or **both**. Therefore, DLL_EXPORT, which is set
+ * by libtool, must override FLAC__NO_DLL on building shared components
+ */
+#if defined(_WIN32)
+
+#if defined(FLAC__NO_DLL) && !(defined(DLL_EXPORT))
+#define FLAC_API
+#else
+#ifdef FLAC_API_EXPORTS
+#define	FLAC_API __declspec(dllexport)
+#else
+#define FLAC_API __declspec(dllimport)
+#endif
+#endif
+
+#elif defined(FLAC__USE_VISIBILITY_ATTR)
+#define FLAC_API __attribute__ ((visibility ("default")))
+
+#else
+#define FLAC_API
+
+#endif
+
+/** These \#defines will mirror the libtool-based library version number, see
+ * http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning
+ */
+#define FLAC_API_VERSION_CURRENT 12
+#define FLAC_API_VERSION_REVISION 0 /**< see above */
+#define FLAC_API_VERSION_AGE 0 /**< see above */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** \c 1 if the library has been compiled with support for Ogg FLAC, else \c 0. */
+extern FLAC_API int FLAC_API_SUPPORTS_OGG_FLAC;
+
+#ifdef __cplusplus
+}
+#endif
+
+/* \} */
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/format.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/format.h
new file mode 100644
index 00000000..99d637f0
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/format.h
@@ -0,0 +1,1032 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__FORMAT_H
+#define FLAC__FORMAT_H
+
+#include "export.h"
+#include "ordinals.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** \file include/FLAC/format.h
+ *
+ *  \brief
+ *  This module contains structure definitions for the representation
+ *  of FLAC format components in memory.  These are the basic
+ *  structures used by the rest of the interfaces.
+ *
+ *  See the detailed documentation in the
+ *  \link flac_format format \endlink module.
+ */
+
+/** \defgroup flac_format FLAC/format.h: format components
+ *  \ingroup flac
+ *
+ *  \brief
+ *  This module contains structure definitions for the representation
+ *  of FLAC format components in memory.  These are the basic
+ *  structures used by the rest of the interfaces.
+ *
+ *  First, you should be familiar with the
+ *  <A HREF="../format.html">FLAC format</A>.  Many of the values here
+ *  follow directly from the specification.  As a user of libFLAC, the
+ *  interesting parts really are the structures that describe the frame
+ *  header and metadata blocks.
+ *
+ *  The format structures here are very primitive, designed to store
+ *  information in an efficient way.  Reading information from the
+ *  structures is easy but creating or modifying them directly is
+ *  more complex.  For the most part, as a user of a library, editing
+ *  is not necessary; however, for metadata blocks it is, so there are
+ *  convenience functions provided in the \link flac_metadata metadata
+ *  module \endlink to simplify the manipulation of metadata blocks.
+ *
+ * \note
+ * It's not the best convention, but symbols ending in _LEN are in bits
+ * and _LENGTH are in bytes.  _LENGTH symbols are \#defines instead of
+ * global variables because they are usually used when declaring byte
+ * arrays and some compilers require compile-time knowledge of array
+ * sizes when declared on the stack.
+ *
+ * \{
+ */
+
+
+/*
+	Most of the values described in this file are defined by the FLAC
+	format specification.  There is nothing to tune here.
+*/
+
+/** The largest legal metadata type code. */
+#define FLAC__MAX_METADATA_TYPE_CODE (126u)
+
+/** The minimum block size, in samples, permitted by the format. */
+#define FLAC__MIN_BLOCK_SIZE (16u)
+
+/** The maximum block size, in samples, permitted by the format. */
+#define FLAC__MAX_BLOCK_SIZE (65535u)
+
+/** The maximum block size, in samples, permitted by the FLAC subset for
+ *  sample rates up to 48kHz. */
+#define FLAC__SUBSET_MAX_BLOCK_SIZE_48000HZ (4608u)
+
+/** The maximum number of channels permitted by the format. */
+#define FLAC__MAX_CHANNELS (8u)
+
+/** The minimum sample resolution permitted by the format. */
+#define FLAC__MIN_BITS_PER_SAMPLE (4u)
+
+/** The maximum sample resolution permitted by the format. */
+#define FLAC__MAX_BITS_PER_SAMPLE (32u)
+
+/** The maximum sample resolution permitted by libFLAC.
+ *
+ * FLAC__MAX_BITS_PER_SAMPLE is the limit of the FLAC format.  However,
+ * the reference encoder/decoder used to be limited to 24 bits. This
+ * value was used to signal that limit.
+ */
+#define FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE (32u)
+
+/** The maximum sample rate permitted by the format.  The value is
+ *  ((2 ^ 20) - 1)
+ */
+#define FLAC__MAX_SAMPLE_RATE (1048575u)
+
+/** The maximum LPC order permitted by the format. */
+#define FLAC__MAX_LPC_ORDER (32u)
+
+/** The maximum LPC order permitted by the FLAC subset for sample rates
+ *  up to 48kHz. */
+#define FLAC__SUBSET_MAX_LPC_ORDER_48000HZ (12u)
+
+/** The minimum quantized linear predictor coefficient precision
+ *  permitted by the format.
+ */
+#define FLAC__MIN_QLP_COEFF_PRECISION (5u)
+
+/** The maximum quantized linear predictor coefficient precision
+ *  permitted by the format.
+ */
+#define FLAC__MAX_QLP_COEFF_PRECISION (15u)
+
+/** The maximum order of the fixed predictors permitted by the format. */
+#define FLAC__MAX_FIXED_ORDER (4u)
+
+/** The maximum Rice partition order permitted by the format. */
+#define FLAC__MAX_RICE_PARTITION_ORDER (15u)
+
+/** The maximum Rice partition order permitted by the FLAC Subset. */
+#define FLAC__SUBSET_MAX_RICE_PARTITION_ORDER (8u)
+
+/** The version string of the release, stamped onto the libraries and binaries.
+ *
+ * \note
+ * This does not correspond to the shared library version number, which
+ * is used to determine binary compatibility.
+ */
+extern FLAC_API const char *FLAC__VERSION_STRING;
+
+/** The vendor string inserted by the encoder into the VORBIS_COMMENT block.
+ *  This is a NUL-terminated ASCII string; when inserted into the
+ *  VORBIS_COMMENT the trailing null is stripped.
+ */
+extern FLAC_API const char *FLAC__VENDOR_STRING;
+
+/** The byte string representation of the beginning of a FLAC stream. */
+extern FLAC_API const FLAC__byte FLAC__STREAM_SYNC_STRING[4]; /* = "fLaC" */
+
+/** The 32-bit integer big-endian representation of the beginning of
+ *  a FLAC stream.
+ */
+extern FLAC_API const uint32_t FLAC__STREAM_SYNC; /* = 0x664C6143 */
+
+/** The length of the FLAC signature in bits. */
+extern FLAC_API const uint32_t FLAC__STREAM_SYNC_LEN; /* = 32 bits */
+
+/** The length of the FLAC signature in bytes. */
+#define FLAC__STREAM_SYNC_LENGTH (4u)
+
+
+/*****************************************************************************
+ *
+ * Subframe structures
+ *
+ *****************************************************************************/
+
+/*****************************************************************************/
+
+/** An enumeration of the available entropy coding methods. */
+typedef enum {
+	FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE = 0,
+	/**< Residual is coded by partitioning into contexts, each with it's own
+	 * 4-bit Rice parameter. */
+
+	FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2 = 1
+	/**< Residual is coded by partitioning into contexts, each with it's own
+	 * 5-bit Rice parameter. */
+} FLAC__EntropyCodingMethodType;
+
+/** Maps a FLAC__EntropyCodingMethodType to a C string.
+ *
+ *  Using a FLAC__EntropyCodingMethodType as the index to this array will
+ *  give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__EntropyCodingMethodTypeString[];
+
+
+/** Contents of a Rice partitioned residual
+ */
+typedef struct {
+
+	uint32_t *parameters;
+	/**< The Rice parameters for each context. */
+
+	uint32_t *raw_bits;
+	/**< Widths for escape-coded partitions.  Will be non-zero for escaped
+	 * partitions and zero for unescaped partitions.
+	 */
+
+	uint32_t capacity_by_order;
+	/**< The capacity of the \a parameters and \a raw_bits arrays
+	 * specified as an order, i.e. the number of array elements
+	 * allocated is 2 ^ \a capacity_by_order.
+	 */
+} FLAC__EntropyCodingMethod_PartitionedRiceContents;
+
+/** Header for a Rice partitioned residual.  (c.f. <A HREF="../format.html#partitioned_rice">format specification</A>)
+ */
+typedef struct {
+
+	uint32_t order;
+	/**< The partition order, i.e. # of contexts = 2 ^ \a order. */
+
+	const FLAC__EntropyCodingMethod_PartitionedRiceContents *contents;
+	/**< The context's Rice parameters and/or raw bits. */
+
+} FLAC__EntropyCodingMethod_PartitionedRice;
+
+extern FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN; /**< == 4 (bits) */
+extern FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN; /**< == 4 (bits) */
+extern FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN; /**< == 5 (bits) */
+extern FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN; /**< == 5 (bits) */
+
+extern FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
+/**< == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN)-1 */
+extern FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER;
+/**< == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN)-1 */
+
+/** Header for the entropy coding method.  (c.f. <A HREF="../format.html#residual">format specification</A>)
+ */
+typedef struct {
+	FLAC__EntropyCodingMethodType type;
+	union {
+		FLAC__EntropyCodingMethod_PartitionedRice partitioned_rice;
+	} data;
+} FLAC__EntropyCodingMethod;
+
+extern FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_TYPE_LEN; /**< == 2 (bits) */
+
+/*****************************************************************************/
+
+/** An enumeration of the available subframe types. */
+typedef enum {
+	FLAC__SUBFRAME_TYPE_CONSTANT = 0, /**< constant signal */
+	FLAC__SUBFRAME_TYPE_VERBATIM = 1, /**< uncompressed signal */
+	FLAC__SUBFRAME_TYPE_FIXED = 2, /**< fixed polynomial prediction */
+	FLAC__SUBFRAME_TYPE_LPC = 3 /**< linear prediction */
+} FLAC__SubframeType;
+
+/** Maps a FLAC__SubframeType to a C string.
+ *
+ *  Using a FLAC__SubframeType as the index to this array will
+ *  give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__SubframeTypeString[];
+
+
+/** CONSTANT subframe.  (c.f. <A HREF="../format.html#subframe_constant">format specification</A>)
+ */
+typedef struct {
+	FLAC__int64 value; /**< The constant signal value. */
+} FLAC__Subframe_Constant;
+
+/** An enumeration of the possible verbatim subframe data types. */
+typedef enum {
+	FLAC__VERBATIM_SUBFRAME_DATA_TYPE_INT32, /**< verbatim subframe has 32-bit int */
+	FLAC__VERBATIM_SUBFRAME_DATA_TYPE_INT64 /**< verbatim subframe has 64-bit int */
+} FLAC__VerbatimSubframeDataType;
+
+
+/** VERBATIM subframe.  (c.f. <A HREF="../format.html#subframe_verbatim">format specification</A>)
+ */
+typedef struct {
+	union {
+		const FLAC__int32 *int32; /**< A FLAC__int32 pointer to verbatim signal. */
+		const FLAC__int64 *int64; /**< A FLAC__int64 pointer to verbatim signal. */
+	} data;
+	FLAC__VerbatimSubframeDataType data_type;
+} FLAC__Subframe_Verbatim;
+
+
+/** FIXED subframe.  (c.f. <A HREF="../format.html#subframe_fixed">format specification</A>)
+ */
+typedef struct {
+	FLAC__EntropyCodingMethod entropy_coding_method;
+	/**< The residual coding method. */
+
+	uint32_t order;
+	/**< The polynomial order. */
+
+	FLAC__int64 warmup[FLAC__MAX_FIXED_ORDER];
+	/**< Warmup samples to prime the predictor, length == order. */
+
+	const FLAC__int32 *residual;
+	/**< The residual signal, length == (blocksize minus order) samples. */
+} FLAC__Subframe_Fixed;
+
+
+/** LPC subframe.  (c.f. <A HREF="../format.html#subframe_lpc">format specification</A>)
+ */
+typedef struct {
+	FLAC__EntropyCodingMethod entropy_coding_method;
+	/**< The residual coding method. */
+
+	uint32_t order;
+	/**< The FIR order. */
+
+	uint32_t qlp_coeff_precision;
+	/**< Quantized FIR filter coefficient precision in bits. */
+
+	int quantization_level;
+	/**< The qlp coeff shift needed. */
+
+	FLAC__int32 qlp_coeff[FLAC__MAX_LPC_ORDER];
+	/**< FIR filter coefficients. */
+
+	FLAC__int64 warmup[FLAC__MAX_LPC_ORDER];
+	/**< Warmup samples to prime the predictor, length == order. */
+
+	const FLAC__int32 *residual;
+	/**< The residual signal, length == (blocksize minus order) samples. */
+} FLAC__Subframe_LPC;
+
+extern FLAC_API const uint32_t FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN; /**< == 4 (bits) */
+extern FLAC_API const uint32_t FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN; /**< == 5 (bits) */
+
+
+/** FLAC subframe structure.  (c.f. <A HREF="../format.html#subframe">format specification</A>)
+ */
+typedef struct {
+	FLAC__SubframeType type;
+	union {
+		FLAC__Subframe_Constant constant;
+		FLAC__Subframe_Fixed fixed;
+		FLAC__Subframe_LPC lpc;
+		FLAC__Subframe_Verbatim verbatim;
+	} data;
+	uint32_t wasted_bits;
+} FLAC__Subframe;
+
+/** == 1 (bit)
+ *
+ * This used to be a zero-padding bit (hence the name
+ * FLAC__SUBFRAME_ZERO_PAD_LEN) but is now a reserved bit.  It still has a
+ * mandatory value of \c 0 but in the future may take on the value \c 0 or \c 1
+ * to mean something else.
+ */
+extern FLAC_API const uint32_t FLAC__SUBFRAME_ZERO_PAD_LEN;
+extern FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_LEN; /**< == 6 (bits) */
+extern FLAC_API const uint32_t FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN; /**< == 1 (bit) */
+
+extern FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK; /**< = 0x00 */
+extern FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK; /**< = 0x02 */
+extern FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK; /**< = 0x10 */
+extern FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK; /**< = 0x40 */
+
+/*****************************************************************************/
+
+
+/*****************************************************************************
+ *
+ * Frame structures
+ *
+ *****************************************************************************/
+
+/** An enumeration of the available channel assignments. */
+typedef enum {
+	FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT = 0, /**< independent channels */
+	FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE = 1, /**< left+side stereo */
+	FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE = 2, /**< right+side stereo */
+	FLAC__CHANNEL_ASSIGNMENT_MID_SIDE = 3 /**< mid+side stereo */
+} FLAC__ChannelAssignment;
+
+/** Maps a FLAC__ChannelAssignment to a C string.
+ *
+ *  Using a FLAC__ChannelAssignment as the index to this array will
+ *  give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__ChannelAssignmentString[];
+
+/** An enumeration of the possible frame numbering methods. */
+typedef enum {
+	FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER, /**< number contains the frame number */
+	FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER /**< number contains the sample number of first sample in frame */
+} FLAC__FrameNumberType;
+
+/** Maps a FLAC__FrameNumberType to a C string.
+ *
+ *  Using a FLAC__FrameNumberType as the index to this array will
+ *  give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__FrameNumberTypeString[];
+
+
+/** FLAC frame header structure.  (c.f. <A HREF="../format.html#frame_header">format specification</A>)
+ */
+typedef struct {
+	uint32_t blocksize;
+	/**< The number of samples per subframe. */
+
+	uint32_t sample_rate;
+	/**< The sample rate in Hz. */
+
+	uint32_t channels;
+	/**< The number of channels (== number of subframes). */
+
+	FLAC__ChannelAssignment channel_assignment;
+	/**< The channel assignment for the frame. */
+
+	uint32_t bits_per_sample;
+	/**< The sample resolution. */
+
+	FLAC__FrameNumberType number_type;
+	/**< The numbering scheme used for the frame.  As a convenience, the
+	 * decoder will always convert a frame number to a sample number because
+	 * the rules are complex. */
+
+	union {
+		FLAC__uint32 frame_number;
+		FLAC__uint64 sample_number;
+	} number;
+	/**< The frame number or sample number of first sample in frame;
+	 * use the \a number_type value to determine which to use. */
+
+	FLAC__uint8 crc;
+	/**< CRC-8 (polynomial = x^8 + x^2 + x^1 + x^0, initialized with 0)
+	 * of the raw frame header bytes, meaning everything before the CRC byte
+	 * including the sync code.
+	 */
+} FLAC__FrameHeader;
+
+extern FLAC_API const uint32_t FLAC__FRAME_HEADER_SYNC; /**< == 0x3ffe; the frame header sync code */
+extern FLAC_API const uint32_t FLAC__FRAME_HEADER_SYNC_LEN; /**< == 14 (bits) */
+extern FLAC_API const uint32_t FLAC__FRAME_HEADER_RESERVED_LEN; /**< == 1 (bits) */
+extern FLAC_API const uint32_t FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN; /**< == 1 (bits) */
+extern FLAC_API const uint32_t FLAC__FRAME_HEADER_BLOCK_SIZE_LEN; /**< == 4 (bits) */
+extern FLAC_API const uint32_t FLAC__FRAME_HEADER_SAMPLE_RATE_LEN; /**< == 4 (bits) */
+extern FLAC_API const uint32_t FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN; /**< == 4 (bits) */
+extern FLAC_API const uint32_t FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN; /**< == 3 (bits) */
+extern FLAC_API const uint32_t FLAC__FRAME_HEADER_ZERO_PAD_LEN; /**< == 1 (bit) */
+extern FLAC_API const uint32_t FLAC__FRAME_HEADER_CRC_LEN; /**< == 8 (bits) */
+
+
+/** FLAC frame footer structure.  (c.f. <A HREF="../format.html#frame_footer">format specification</A>)
+ */
+typedef struct {
+	FLAC__uint16 crc;
+	/**< CRC-16 (polynomial = x^16 + x^15 + x^2 + x^0, initialized with
+	 * 0) of the bytes before the crc, back to and including the frame header
+	 * sync code.
+	 */
+} FLAC__FrameFooter;
+
+extern FLAC_API const uint32_t FLAC__FRAME_FOOTER_CRC_LEN; /**< == 16 (bits) */
+
+
+/** FLAC frame structure.  (c.f. <A HREF="../format.html#frame">format specification</A>)
+ */
+typedef struct {
+	FLAC__FrameHeader header;
+	FLAC__Subframe subframes[FLAC__MAX_CHANNELS];
+	FLAC__FrameFooter footer;
+} FLAC__Frame;
+
+/*****************************************************************************/
+
+
+/*****************************************************************************
+ *
+ * Meta-data structures
+ *
+ *****************************************************************************/
+
+/** An enumeration of the available metadata block types. */
+typedef enum {
+
+	FLAC__METADATA_TYPE_STREAMINFO = 0,
+	/**< <A HREF="../format.html#metadata_block_streaminfo">STREAMINFO</A> block */
+
+	FLAC__METADATA_TYPE_PADDING = 1,
+	/**< <A HREF="../format.html#metadata_block_padding">PADDING</A> block */
+
+	FLAC__METADATA_TYPE_APPLICATION = 2,
+	/**< <A HREF="../format.html#metadata_block_application">APPLICATION</A> block */
+
+	FLAC__METADATA_TYPE_SEEKTABLE = 3,
+	/**< <A HREF="../format.html#metadata_block_seektable">SEEKTABLE</A> block */
+
+	FLAC__METADATA_TYPE_VORBIS_COMMENT = 4,
+	/**< <A HREF="../format.html#metadata_block_vorbis_comment">VORBISCOMMENT</A> block (a.k.a. FLAC tags) */
+
+	FLAC__METADATA_TYPE_CUESHEET = 5,
+	/**< <A HREF="../format.html#metadata_block_cuesheet">CUESHEET</A> block */
+
+	FLAC__METADATA_TYPE_PICTURE = 6,
+	/**< <A HREF="../format.html#metadata_block_picture">PICTURE</A> block */
+
+	FLAC__METADATA_TYPE_UNDEFINED = 7,
+	/**< marker to denote beginning of undefined type range; this number will increase as new metadata types are added */
+
+	FLAC__MAX_METADATA_TYPE = FLAC__MAX_METADATA_TYPE_CODE,
+	/**< No type will ever be greater than this. There is not enough room in the protocol block. */
+} FLAC__MetadataType;
+
+/** Maps a FLAC__MetadataType to a C string.
+ *
+ *  Using a FLAC__MetadataType as the index to this array will
+ *  give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__MetadataTypeString[];
+
+
+/** FLAC STREAMINFO structure.  (c.f. <A HREF="../format.html#metadata_block_streaminfo">format specification</A>)
+ */
+typedef struct {
+	uint32_t min_blocksize, max_blocksize;
+	uint32_t min_framesize, max_framesize;
+	uint32_t sample_rate;
+	uint32_t channels;
+	uint32_t bits_per_sample;
+	FLAC__uint64 total_samples;
+	FLAC__byte md5sum[16];
+} FLAC__StreamMetadata_StreamInfo;
+
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN; /**< == 16 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN; /**< == 16 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN; /**< == 24 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN; /**< == 24 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN; /**< == 20 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN; /**< == 3 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN; /**< == 5 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN; /**< == 36 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN; /**< == 128 (bits) */
+
+/** The total stream length of the STREAMINFO block in bytes. */
+#define FLAC__STREAM_METADATA_STREAMINFO_LENGTH (34u)
+
+/** FLAC PADDING structure.  (c.f. <A HREF="../format.html#metadata_block_padding">format specification</A>)
+ */
+typedef struct {
+	int dummy;
+	/**< Conceptually this is an empty struct since we don't store the
+	 * padding bytes.  Empty structs are not allowed by some C compilers,
+	 * hence the dummy.
+	 */
+} FLAC__StreamMetadata_Padding;
+
+
+/** FLAC APPLICATION structure.  (c.f. <A HREF="../format.html#metadata_block_application">format specification</A>)
+ */
+typedef struct {
+	FLAC__byte id[4];
+	FLAC__byte *data;
+} FLAC__StreamMetadata_Application;
+
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_APPLICATION_ID_LEN; /**< == 32 (bits) */
+
+/** SeekPoint structure used in SEEKTABLE blocks.  (c.f. <A HREF="../format.html#seekpoint">format specification</A>)
+ */
+typedef struct {
+	FLAC__uint64 sample_number;
+	/**<  The sample number of the target frame. */
+
+	FLAC__uint64 stream_offset;
+	/**< The offset, in bytes, of the target frame with respect to
+	 * beginning of the first frame. */
+
+	uint32_t frame_samples;
+	/**< The number of samples in the target frame. */
+} FLAC__StreamMetadata_SeekPoint;
+
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN; /**< == 64 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN; /**< == 64 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN; /**< == 16 (bits) */
+
+/** The total stream length of a seek point in bytes. */
+#define FLAC__STREAM_METADATA_SEEKPOINT_LENGTH (18u)
+
+/** The value used in the \a sample_number field of
+ *  FLAC__StreamMetadataSeekPoint used to indicate a placeholder
+ *  point (== 0xffffffffffffffff).
+ */
+extern FLAC_API const FLAC__uint64 FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
+
+
+/** FLAC SEEKTABLE structure.  (c.f. <A HREF="../format.html#metadata_block_seektable">format specification</A>)
+ *
+ * \note From the format specification:
+ * - The seek points must be sorted by ascending sample number.
+ * - Each seek point's sample number must be the first sample of the
+ *   target frame.
+ * - Each seek point's sample number must be unique within the table.
+ * - Existence of a SEEKTABLE block implies a correct setting of
+ *   total_samples in the stream_info block.
+ * - Behavior is undefined when more than one SEEKTABLE block is
+ *   present in a stream.
+ */
+typedef struct {
+	uint32_t num_points;
+	FLAC__StreamMetadata_SeekPoint *points;
+} FLAC__StreamMetadata_SeekTable;
+
+
+/** Vorbis comment entry structure used in VORBIS_COMMENT blocks.  (c.f. <A HREF="../format.html#metadata_block_vorbis_comment">format specification</A>)
+ *
+ *  For convenience, the APIs maintain a trailing NUL character at the end of
+ *  \a entry which is not counted toward \a length, i.e.
+ *  \code strlen(entry) == length \endcode
+ */
+typedef struct {
+	FLAC__uint32 length;
+	FLAC__byte *entry;
+} FLAC__StreamMetadata_VorbisComment_Entry;
+
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN; /**< == 32 (bits) */
+
+
+/** FLAC VORBIS_COMMENT structure.  (c.f. <A HREF="../format.html#metadata_block_vorbis_comment">format specification</A>)
+ */
+typedef struct {
+	FLAC__StreamMetadata_VorbisComment_Entry vendor_string;
+	FLAC__uint32 num_comments;
+	FLAC__StreamMetadata_VorbisComment_Entry *comments;
+} FLAC__StreamMetadata_VorbisComment;
+
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN; /**< == 32 (bits) */
+
+
+/** FLAC CUESHEET track index structure.  (See the
+ * <A HREF="../format.html#cuesheet_track_index">format specification</A> for
+ * the full description of each field.)
+ */
+typedef struct {
+	FLAC__uint64 offset;
+	/**< Offset in samples, relative to the track offset, of the index
+	 * point.
+	 */
+
+	FLAC__byte number;
+	/**< The index point number. */
+} FLAC__StreamMetadata_CueSheet_Index;
+
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN; /**< == 64 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN; /**< == 8 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN; /**< == 3*8 (bits) */
+
+
+/** FLAC CUESHEET track structure.  (See the
+ * <A HREF="../format.html#cuesheet_track">format specification</A> for
+ * the full description of each field.)
+ */
+typedef struct {
+	FLAC__uint64 offset;
+	/**< Track offset in samples, relative to the beginning of the FLAC audio stream. */
+
+	FLAC__byte number;
+	/**< The track number. */
+
+	char isrc[13];
+	/**< Track ISRC.  This is a 12-digit alphanumeric code plus a trailing \c NUL byte */
+
+	uint32_t type:1;
+	/**< The track type: 0 for audio, 1 for non-audio. */
+
+	uint32_t pre_emphasis:1;
+	/**< The pre-emphasis flag: 0 for no pre-emphasis, 1 for pre-emphasis. */
+
+	FLAC__byte num_indices;
+	/**< The number of track index points. */
+
+	FLAC__StreamMetadata_CueSheet_Index *indices;
+	/**< NULL if num_indices == 0, else pointer to array of index points. */
+
+} FLAC__StreamMetadata_CueSheet_Track;
+
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN; /**< == 64 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN; /**< == 8 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN; /**< == 12*8 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN; /**< == 1 (bit) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN; /**< == 1 (bit) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN; /**< == 6+13*8 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN; /**< == 8 (bits) */
+
+
+/** FLAC CUESHEET structure.  (See the
+ * <A HREF="../format.html#metadata_block_cuesheet">format specification</A>
+ * for the full description of each field.)
+ */
+typedef struct {
+	char media_catalog_number[129];
+	/**< Media catalog number, in ASCII printable characters 0x20-0x7e.  In
+	 * general, the media catalog number may be 0 to 128 bytes long; any
+	 * unused characters should be right-padded with NUL characters.
+	 */
+
+	FLAC__uint64 lead_in;
+	/**< The number of lead-in samples. */
+
+	FLAC__bool is_cd;
+	/**< \c true if CUESHEET corresponds to a Compact Disc, else \c false. */
+
+	uint32_t num_tracks;
+	/**< The number of tracks. */
+
+	FLAC__StreamMetadata_CueSheet_Track *tracks;
+	/**< NULL if num_tracks == 0, else pointer to array of tracks. */
+
+} FLAC__StreamMetadata_CueSheet;
+
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN; /**< == 128*8 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN; /**< == 64 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN; /**< == 1 (bit) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN; /**< == 7+258*8 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN; /**< == 8 (bits) */
+
+
+/** An enumeration of the PICTURE types (see FLAC__StreamMetadataPicture and id3 v2.4 APIC tag). */
+typedef enum {
+	FLAC__STREAM_METADATA_PICTURE_TYPE_OTHER = 0, /**< Other */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD = 1, /**< 32x32 pixels 'file icon' (PNG only) */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON = 2, /**< Other file icon */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_FRONT_COVER = 3, /**< Cover (front) */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_BACK_COVER = 4, /**< Cover (back) */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_LEAFLET_PAGE = 5, /**< Leaflet page */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_MEDIA = 6, /**< Media (e.g. label side of CD) */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_LEAD_ARTIST = 7, /**< Lead artist/lead performer/soloist */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_ARTIST = 8, /**< Artist/performer */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_CONDUCTOR = 9, /**< Conductor */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_BAND = 10, /**< Band/Orchestra */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_COMPOSER = 11, /**< Composer */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_LYRICIST = 12, /**< Lyricist/text writer */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_RECORDING_LOCATION = 13, /**< Recording Location */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_DURING_RECORDING = 14, /**< During recording */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_DURING_PERFORMANCE = 15, /**< During performance */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_VIDEO_SCREEN_CAPTURE = 16, /**< Movie/video screen capture */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_FISH = 17, /**< A bright coloured fish */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_ILLUSTRATION = 18, /**< Illustration */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_BAND_LOGOTYPE = 19, /**< Band/artist logotype */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_PUBLISHER_LOGOTYPE = 20, /**< Publisher/Studio logotype */
+	FLAC__STREAM_METADATA_PICTURE_TYPE_UNDEFINED
+} FLAC__StreamMetadata_Picture_Type;
+
+/** Maps a FLAC__StreamMetadata_Picture_Type to a C string.
+ *
+ *  Using a FLAC__StreamMetadata_Picture_Type as the index to this array
+ *  will give the string equivalent.  The contents should not be
+ *  modified.
+ */
+extern FLAC_API const char * const FLAC__StreamMetadata_Picture_TypeString[];
+
+/** FLAC PICTURE structure.  (See the
+ * <A HREF="../format.html#metadata_block_picture">format specification</A>
+ * for the full description of each field.)
+ */
+typedef struct {
+	FLAC__StreamMetadata_Picture_Type type;
+	/**< The kind of picture stored. */
+
+	char *mime_type;
+	/**< Picture data's MIME type, in ASCII printable characters
+	 * 0x20-0x7e, NUL terminated.  For best compatibility with players,
+	 * use picture data of MIME type \c image/jpeg or \c image/png.  A
+	 * MIME type of '-->' is also allowed, in which case the picture
+	 * data should be a complete URL.  In file storage, the MIME type is
+	 * stored as a 32-bit length followed by the ASCII string with no NUL
+	 * terminator, but is converted to a plain C string in this structure
+	 * for convenience.
+	 */
+
+	FLAC__byte *description;
+	/**< Picture's description in UTF-8, NUL terminated.  In file storage,
+	 * the description is stored as a 32-bit length followed by the UTF-8
+	 * string with no NUL terminator, but is converted to a plain C string
+	 * in this structure for convenience.
+	 */
+
+	FLAC__uint32 width;
+	/**< Picture's width in pixels. */
+
+	FLAC__uint32 height;
+	/**< Picture's height in pixels. */
+
+	FLAC__uint32 depth;
+	/**< Picture's color depth in bits-per-pixel. */
+
+	FLAC__uint32 colors;
+	/**< For indexed palettes (like GIF), picture's number of colors (the
+	 * number of palette entries), or \c 0 for non-indexed (i.e. 2^depth).
+	 */
+
+	FLAC__uint32 data_length;
+	/**< Length of binary picture data in bytes. */
+
+	FLAC__byte *data;
+	/**< Binary picture data. */
+
+} FLAC__StreamMetadata_Picture;
+
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_TYPE_LEN; /**< == 32 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN; /**< == 32 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN; /**< == 32 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN; /**< == 32 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN; /**< == 32 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN; /**< == 32 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_COLORS_LEN; /**< == 32 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN; /**< == 32 (bits) */
+
+
+/** Structure that is used when a metadata block of unknown type is loaded.
+ *  The contents are opaque.  The structure is used only internally to
+ *  correctly handle unknown metadata.
+ */
+typedef struct {
+	FLAC__byte *data;
+} FLAC__StreamMetadata_Unknown;
+
+
+/** FLAC metadata block structure.  (c.f. <A HREF="../format.html#metadata_block">format specification</A>)
+ */
+typedef struct FLAC__StreamMetadata {
+	FLAC__MetadataType type;
+	/**< The type of the metadata block; used determine which member of the
+	 * \a data union to dereference.  If type >= FLAC__METADATA_TYPE_UNDEFINED
+	 * then \a data.unknown must be used. */
+
+	FLAC__bool is_last;
+	/**< \c true if this metadata block is the last, else \a false */
+
+	uint32_t length;
+	/**< Length, in bytes, of the block data as it appears in the stream. */
+
+	union {
+		FLAC__StreamMetadata_StreamInfo stream_info;
+		FLAC__StreamMetadata_Padding padding;
+		FLAC__StreamMetadata_Application application;
+		FLAC__StreamMetadata_SeekTable seek_table;
+		FLAC__StreamMetadata_VorbisComment vorbis_comment;
+		FLAC__StreamMetadata_CueSheet cue_sheet;
+		FLAC__StreamMetadata_Picture picture;
+		FLAC__StreamMetadata_Unknown unknown;
+	} data;
+	/**< Polymorphic block data; use the \a type value to determine which
+	 * to use. */
+} FLAC__StreamMetadata;
+
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_IS_LAST_LEN; /**< == 1 (bit) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_TYPE_LEN; /**< == 7 (bits) */
+extern FLAC_API const uint32_t FLAC__STREAM_METADATA_LENGTH_LEN; /**< == 24 (bits) */
+
+/** The total stream length of a metadata block header in bytes. */
+#define FLAC__STREAM_METADATA_HEADER_LENGTH (4u)
+
+/*****************************************************************************/
+
+
+/*****************************************************************************
+ *
+ * Utility functions
+ *
+ *****************************************************************************/
+
+/** Tests that a sample rate is valid for FLAC.
+ *
+ * \param sample_rate  The sample rate to test for compliance.
+ * \retval FLAC__bool
+ *    \c true if the given sample rate conforms to the specification, else
+ *    \c false.
+ */
+FLAC_API FLAC__bool FLAC__format_sample_rate_is_valid(uint32_t sample_rate);
+
+/** Tests that a blocksize at the given sample rate is valid for the FLAC
+ *  subset.
+ *
+ * \param blocksize    The blocksize to test for compliance.
+ * \param sample_rate  The sample rate is needed, since the valid subset
+ *                     blocksize depends on the sample rate.
+ * \retval FLAC__bool
+ *    \c true if the given blocksize conforms to the specification for the
+ *    subset at the given sample rate, else \c false.
+ */
+FLAC_API FLAC__bool FLAC__format_blocksize_is_subset(uint32_t blocksize, uint32_t sample_rate);
+
+/** Tests that a sample rate is valid for the FLAC subset.  The subset rules
+ *  for valid sample rates are slightly more complex since the rate has to
+ *  be expressible completely in the frame header.
+ *
+ * \param sample_rate  The sample rate to test for compliance.
+ * \retval FLAC__bool
+ *    \c true if the given sample rate conforms to the specification for the
+ *    subset, else \c false.
+ */
+FLAC_API FLAC__bool FLAC__format_sample_rate_is_subset(uint32_t sample_rate);
+
+/** Check a Vorbis comment entry name to see if it conforms to the Vorbis
+ *  comment specification.
+ *
+ *  Vorbis comment names must be composed only of characters from
+ *  [0x20-0x3C,0x3E-0x7D].
+ *
+ * \param name       A NUL-terminated string to be checked.
+ * \assert
+ *    \code name != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if entry name is illegal, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_name_is_legal(const char *name);
+
+/** Check a Vorbis comment entry value to see if it conforms to the Vorbis
+ *  comment specification.
+ *
+ *  Vorbis comment values must be valid UTF-8 sequences.
+ *
+ * \param value      A string to be checked.
+ * \param length     A the length of \a value in bytes.  May be
+ *                   \c (uint32_t)(-1) to indicate that \a value is a plain
+ *                   UTF-8 NUL-terminated string.
+ * \assert
+ *    \code value != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if entry name is illegal, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_value_is_legal(const FLAC__byte *value, uint32_t length);
+
+/** Check a Vorbis comment entry to see if it conforms to the Vorbis
+ *  comment specification.
+ *
+ *  Vorbis comment entries must be of the form 'name=value', and 'name' and
+ *  'value' must be legal according to
+ *  FLAC__format_vorbiscomment_entry_name_is_legal() and
+ *  FLAC__format_vorbiscomment_entry_value_is_legal() respectively.
+ *
+ * \param entry      An entry to be checked.
+ * \param length     The length of \a entry in bytes.
+ * \assert
+ *    \code value != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if entry name is illegal, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_is_legal(const FLAC__byte *entry, uint32_t length);
+
+/** Check a seek table to see if it conforms to the FLAC specification.
+ *  See the format specification for limits on the contents of the
+ *  seek table.
+ *
+ * \param seek_table  A pointer to a seek table to be checked.
+ * \assert
+ *    \code seek_table != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if seek table is illegal, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__format_seektable_is_legal(const FLAC__StreamMetadata_SeekTable *seek_table);
+
+/** Sort a seek table's seek points according to the format specification.
+ *  This includes a "unique-ification" step to remove duplicates, i.e.
+ *  seek points with identical \a sample_number values.  Duplicate seek
+ *  points are converted into placeholder points and sorted to the end of
+ *  the table.
+ *
+ * \param seek_table  A pointer to a seek table to be sorted.
+ * \assert
+ *    \code seek_table != NULL \endcode
+ * \retval uint32_t
+ *    The number of duplicate seek points converted into placeholders.
+ */
+FLAC_API uint32_t FLAC__format_seektable_sort(FLAC__StreamMetadata_SeekTable *seek_table);
+
+/** Check a cue sheet to see if it conforms to the FLAC specification.
+ *  See the format specification for limits on the contents of the
+ *  cue sheet.
+ *
+ * \param cue_sheet  A pointer to an existing cue sheet to be checked.
+ * \param check_cd_da_subset  If \c true, check CUESHEET against more
+ *                   stringent requirements for a CD-DA (audio) disc.
+ * \param violation  Address of a pointer to a string.  If there is a
+ *                   violation, a pointer to a string explanation of the
+ *                   violation will be returned here. \a violation may be
+ *                   \c NULL if you don't need the returned string.  Do not
+ *                   free the returned string; it will always point to static
+ *                   data.
+ * \assert
+ *    \code cue_sheet != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if cue sheet is illegal, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__format_cuesheet_is_legal(const FLAC__StreamMetadata_CueSheet *cue_sheet, FLAC__bool check_cd_da_subset, const char **violation);
+
+/** Check picture data to see if it conforms to the FLAC specification.
+ *  See the format specification for limits on the contents of the
+ *  PICTURE block.
+ *
+ * \param picture    A pointer to existing picture data to be checked.
+ * \param violation  Address of a pointer to a string.  If there is a
+ *                   violation, a pointer to a string explanation of the
+ *                   violation will be returned here. \a violation may be
+ *                   \c NULL if you don't need the returned string.  Do not
+ *                   free the returned string; it will always point to static
+ *                   data.
+ * \assert
+ *    \code picture != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if picture data is illegal, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__format_picture_is_legal(const FLAC__StreamMetadata_Picture *picture, const char **violation);
+
+/* \} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/metadata.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/metadata.h
new file mode 100644
index 00000000..bf1bffe4
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/metadata.h
@@ -0,0 +1,2206 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__METADATA_H
+#define FLAC__METADATA_H
+
+#include <sys/types.h> /* for off_t */
+#include "export.h"
+#include "callback.h"
+#include "format.h"
+
+/* --------------------------------------------------------------------
+   (For an example of how all these routines are used, see the source
+   code for the unit tests in src/test_libFLAC/metadata_*.c, or
+   metaflac in src/metaflac/)
+   ------------------------------------------------------------------*/
+
+/** \file include/FLAC/metadata.h
+ *
+ *  \brief
+ *  This module provides functions for creating and manipulating FLAC
+ *  metadata blocks in memory, and three progressively more powerful
+ *  interfaces for traversing and editing metadata in FLAC files.
+ *
+ *  See the detailed documentation for each interface in the
+ *  \link flac_metadata metadata \endlink module.
+ */
+
+/** \defgroup flac_metadata FLAC/metadata.h: metadata interfaces
+ *  \ingroup flac
+ *
+ *  \brief
+ *  This module provides functions for creating and manipulating FLAC
+ *  metadata blocks in memory, and three progressively more powerful
+ *  interfaces for traversing and editing metadata in native FLAC files.
+ *  Note that currently only the Chain interface (level 2) supports Ogg
+ *  FLAC files, and it is read-only i.e. no writing back changed
+ *  metadata to file.
+ *
+ *  There are three metadata interfaces of increasing complexity:
+ *
+ *  Level 0:
+ *  Read-only access to the STREAMINFO, VORBIS_COMMENT, CUESHEET, and
+ *  PICTURE blocks.
+ *
+ *  Level 1:
+ *  Read-write access to all metadata blocks.  This level is write-
+ *  efficient in most cases (more on this below), and uses less memory
+ *  than level 2.
+ *
+ *  Level 2:
+ *  Read-write access to all metadata blocks.  This level is write-
+ *  efficient in all cases, but uses more memory since all metadata for
+ *  the whole file is read into memory and manipulated before writing
+ *  out again.
+ *
+ *  What do we mean by efficient?  Since FLAC metadata appears at the
+ *  beginning of the file, when writing metadata back to a FLAC file
+ *  it is possible to grow or shrink the metadata such that the entire
+ *  file must be rewritten.  However, if the size remains the same during
+ *  changes or PADDING blocks are utilized, only the metadata needs to be
+ *  overwritten, which is much faster.
+ *
+ *  Efficient means the whole file is rewritten at most one time, and only
+ *  when necessary.  Level 1 is not efficient only in the case that you
+ *  cause more than one metadata block to grow or shrink beyond what can
+ *  be accommodated by padding.  In this case you should probably use level
+ *  2, which allows you to edit all the metadata for a file in memory and
+ *  write it out all at once.
+ *
+ *  All levels know how to skip over and not disturb an ID3v2 tag at the
+ *  front of the file.
+ *
+ *  All levels access files via their filenames.  In addition, level 2
+ *  has additional alternative read and write functions that take an I/O
+ *  handle and callbacks, for situations where access by filename is not
+ *  possible.
+ *
+ *  In addition to the three interfaces, this module defines functions for
+ *  creating and manipulating various metadata objects in memory.  As we see
+ *  from the Format module, FLAC metadata blocks in memory are very primitive
+ *  structures for storing information in an efficient way.  Reading
+ *  information from the structures is easy but creating or modifying them
+ *  directly is more complex.  The metadata object routines here facilitate
+ *  this by taking care of the consistency and memory management drudgery.
+ *
+ *  Unless you will be using the level 1 or 2 interfaces to modify existing
+ *  metadata however, you will not probably not need these.
+ *
+ *  From a dependency standpoint, none of the encoders or decoders require
+ *  the metadata module.  This is so that embedded users can strip out the
+ *  metadata module from libFLAC to reduce the size and complexity.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/** \defgroup flac_metadata_level0 FLAC/metadata.h: metadata level 0 interface
+ *  \ingroup flac_metadata
+ *
+ *  \brief
+ *  The level 0 interface consists of individual routines to read the
+ *  STREAMINFO, VORBIS_COMMENT, CUESHEET, and PICTURE blocks, requiring
+ *  only a filename.
+ *
+ *  On Windows, filename must be a UTF-8 encoded filename, which libFLAC
+ *  internally translates to an appropriate representation to use with
+ *  _wfopen. On all other systems, filename is passed to fopen without
+ *  any translation.
+ *
+ *  They try to skip any ID3v2 tag at the head of the file.
+ *
+ * \{
+ */
+
+/** Read the STREAMINFO metadata block of the given FLAC file.  This function
+ *  will try to skip any ID3v2 tag at the head of the file.
+ *
+ * \param filename    The path to the FLAC file to read.
+ * \param streaminfo  A pointer to space for the STREAMINFO block.  Since
+ *                    FLAC__StreamMetadata is a simple structure with no
+ *                    memory allocation involved, you pass the address of
+ *                    an existing structure.  It need not be initialized.
+ * \assert
+ *    \code filename != NULL \endcode
+ *    \code streaminfo != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if a valid STREAMINFO block was read from \a filename.  Returns
+ *    \c false if there was a memory allocation error, a file decoder error,
+ *    or the file contained no STREAMINFO block.  (A memory allocation error
+ *    is possible because this function must set up a file decoder.)
+ */
+FLAC_API FLAC__bool FLAC__metadata_get_streaminfo(const char *filename, FLAC__StreamMetadata *streaminfo);
+
+/** Read the VORBIS_COMMENT metadata block of the given FLAC file.  This
+ *  function will try to skip any ID3v2 tag at the head of the file.
+ *
+ * \param filename    The path to the FLAC file to read.
+ * \param tags        The address where the returned pointer will be
+ *                    stored.  The \a tags object must be deleted by
+ *                    the caller using FLAC__metadata_object_delete().
+ * \assert
+ *    \code filename != NULL \endcode
+ *    \code tags != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if a valid VORBIS_COMMENT block was read from \a filename,
+ *    and \a *tags will be set to the address of the metadata structure.
+ *    Returns \c false if there was a memory allocation error, a file
+ *    decoder error, or the file contained no VORBIS_COMMENT block, and
+ *    \a *tags will be set to \c NULL.
+ */
+FLAC_API FLAC__bool FLAC__metadata_get_tags(const char *filename, FLAC__StreamMetadata **tags);
+
+/** Read the CUESHEET metadata block of the given FLAC file.  This
+ *  function will try to skip any ID3v2 tag at the head of the file.
+ *
+ * \param filename    The path to the FLAC file to read.
+ * \param cuesheet    The address where the returned pointer will be
+ *                    stored.  The \a cuesheet object must be deleted by
+ *                    the caller using FLAC__metadata_object_delete().
+ * \assert
+ *    \code filename != NULL \endcode
+ *    \code cuesheet != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if a valid CUESHEET block was read from \a filename,
+ *    and \a *cuesheet will be set to the address of the metadata
+ *    structure.  Returns \c false if there was a memory allocation
+ *    error, a file decoder error, or the file contained no CUESHEET
+ *    block, and \a *cuesheet will be set to \c NULL.
+ */
+FLAC_API FLAC__bool FLAC__metadata_get_cuesheet(const char *filename, FLAC__StreamMetadata **cuesheet);
+
+/** Read a PICTURE metadata block of the given FLAC file.  This
+ *  function will try to skip any ID3v2 tag at the head of the file.
+ *  Since there can be more than one PICTURE block in a file, this
+ *  function takes a number of parameters that act as constraints to
+ *  the search.  The PICTURE block with the largest area matching all
+ *  the constraints will be returned, or \a *picture will be set to
+ *  \c NULL if there was no such block.
+ *
+ * \param filename    The path to the FLAC file to read.
+ * \param picture     The address where the returned pointer will be
+ *                    stored.  The \a picture object must be deleted by
+ *                    the caller using FLAC__metadata_object_delete().
+ * \param type        The desired picture type.  Use \c -1 to mean
+ *                    "any type".
+ * \param mime_type   The desired MIME type, e.g. "image/jpeg".  The
+ *                    string will be matched exactly.  Use \c NULL to
+ *                    mean "any MIME type".
+ * \param description The desired description.  The string will be
+ *                    matched exactly.  Use \c NULL to mean "any
+ *                    description".
+ * \param max_width   The maximum width in pixels desired.  Use
+ *                    \c (uint32_t)(-1) to mean "any width".
+ * \param max_height  The maximum height in pixels desired.  Use
+ *                    \c (uint32_t)(-1) to mean "any height".
+ * \param max_depth   The maximum color depth in bits-per-pixel desired.
+ *                    Use \c (uint32_t)(-1) to mean "any depth".
+ * \param max_colors  The maximum number of colors desired.  Use
+ *                    \c (uint32_t)(-1) to mean "any number of colors".
+ * \assert
+ *    \code filename != NULL \endcode
+ *    \code picture != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if a valid PICTURE block was read from \a filename,
+ *    and \a *picture will be set to the address of the metadata
+ *    structure.  Returns \c false if there was a memory allocation
+ *    error, a file decoder error, or the file contained no PICTURE
+ *    block, and \a *picture will be set to \c NULL.
+ */
+FLAC_API FLAC__bool FLAC__metadata_get_picture(const char *filename, FLAC__StreamMetadata **picture, FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, uint32_t max_width, uint32_t max_height, uint32_t max_depth, uint32_t max_colors);
+
+/* \} */
+
+
+/** \defgroup flac_metadata_level1 FLAC/metadata.h: metadata level 1 interface
+ *  \ingroup flac_metadata
+ *
+ * \brief
+ * The level 1 interface provides read-write access to FLAC file metadata and
+ * operates directly on the FLAC file.
+ *
+ * The general usage of this interface is:
+ *
+ * - Create an iterator using FLAC__metadata_simple_iterator_new()
+ * - Attach it to a file using FLAC__metadata_simple_iterator_init() and check
+ *   the exit code.  Call FLAC__metadata_simple_iterator_is_writable() to
+ *   see if the file is writable, or only read access is allowed.
+ * - Use FLAC__metadata_simple_iterator_next() and
+ *   FLAC__metadata_simple_iterator_prev() to traverse the blocks.
+ *   This is does not read the actual blocks themselves.
+ *   FLAC__metadata_simple_iterator_next() is relatively fast.
+ *   FLAC__metadata_simple_iterator_prev() is slower since it needs to search
+ *   forward from the front of the file.
+ * - Use FLAC__metadata_simple_iterator_get_block_type() or
+ *   FLAC__metadata_simple_iterator_get_block() to access the actual data at
+ *   the current iterator position.  The returned object is yours to modify
+ *   and free.
+ * - Use FLAC__metadata_simple_iterator_set_block() to write a modified block
+ *   back.  You must have write permission to the original file.  Make sure to
+ *   read the whole comment to FLAC__metadata_simple_iterator_set_block()
+ *   below.
+ * - Use FLAC__metadata_simple_iterator_insert_block_after() to add new blocks.
+ *   Use the object creation functions from
+ *   \link flac_metadata_object here \endlink to generate new objects.
+ * - Use FLAC__metadata_simple_iterator_delete_block() to remove the block
+ *   currently referred to by the iterator, or replace it with padding.
+ * - Destroy the iterator with FLAC__metadata_simple_iterator_delete() when
+ *   finished.
+ *
+ * \note
+ * The FLAC file remains open the whole time between
+ * FLAC__metadata_simple_iterator_init() and
+ * FLAC__metadata_simple_iterator_delete(), so make sure you are not altering
+ * the file during this time.
+ *
+ * \note
+ * Do not modify the \a is_last, \a length, or \a type fields of returned
+ * FLAC__StreamMetadata objects.  These are managed automatically.
+ *
+ * \note
+ * If any of the modification functions
+ * (FLAC__metadata_simple_iterator_set_block(),
+ * FLAC__metadata_simple_iterator_delete_block(),
+ * FLAC__metadata_simple_iterator_insert_block_after(), etc.) return \c false,
+ * you should delete the iterator as it may no longer be valid.
+ *
+ * \{
+ */
+
+struct FLAC__Metadata_SimpleIterator;
+/** The opaque structure definition for the level 1 iterator type.
+ *  See the
+ *  \link flac_metadata_level1 metadata level 1 module \endlink
+ *  for a detailed description.
+ */
+typedef struct FLAC__Metadata_SimpleIterator FLAC__Metadata_SimpleIterator;
+
+/** Status type for FLAC__Metadata_SimpleIterator.
+ *
+ *  The iterator's current status can be obtained by calling FLAC__metadata_simple_iterator_status().
+ */
+typedef enum {
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK = 0,
+	/**< The iterator is in the normal OK state */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT,
+	/**< The data passed into a function violated the function's usage criteria */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE,
+	/**< The iterator could not open the target file */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE,
+	/**< The iterator could not find the FLAC signature at the start of the file */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE,
+	/**< The iterator tried to write to a file that was not writable */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA,
+	/**< The iterator encountered input that does not conform to the FLAC metadata specification */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR,
+	/**< The iterator encountered an error while reading the FLAC file */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR,
+	/**< The iterator encountered an error while seeking in the FLAC file */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR,
+	/**< The iterator encountered an error while writing the FLAC file */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR,
+	/**< The iterator encountered an error renaming the FLAC file */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR,
+	/**< The iterator encountered an error removing the temporary file */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR,
+	/**< Memory allocation failed */
+
+	FLAC__METADATA_SIMPLE_ITERATOR_STATUS_INTERNAL_ERROR
+	/**< The caller violated an assertion or an unexpected error occurred */
+
+} FLAC__Metadata_SimpleIteratorStatus;
+
+/** Maps a FLAC__Metadata_SimpleIteratorStatus to a C string.
+ *
+ *  Using a FLAC__Metadata_SimpleIteratorStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__Metadata_SimpleIteratorStatusString[];
+
+
+/** Create a new iterator instance.
+ *
+ * \retval FLAC__Metadata_SimpleIterator*
+ *    \c NULL if there was an error allocating memory, else the new instance.
+ */
+FLAC_API FLAC__Metadata_SimpleIterator *FLAC__metadata_simple_iterator_new(void);
+
+/** Free an iterator instance.  Deletes the object pointed to by \a iterator.
+ *
+ * \param iterator  A pointer to an existing iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ */
+FLAC_API void FLAC__metadata_simple_iterator_delete(FLAC__Metadata_SimpleIterator *iterator);
+
+/** Get the current status of the iterator.  Call this after a function
+ *  returns \c false to get the reason for the error.  Also resets the status
+ *  to FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK.
+ *
+ * \param iterator  A pointer to an existing iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ * \retval FLAC__Metadata_SimpleIteratorStatus
+ *    The current status of the iterator.
+ */
+FLAC_API FLAC__Metadata_SimpleIteratorStatus FLAC__metadata_simple_iterator_status(FLAC__Metadata_SimpleIterator *iterator);
+
+/** Initialize the iterator to point to the first metadata block in the
+ *  given FLAC file.
+ *
+ *  On Windows, filename must be a UTF-8 encoded filename, which libFLAC
+ *  internally translates to an appropriate representation to use with
+ *  _wfopen. On all other systems, filename is passed to fopen without
+ *  any translation.
+ *
+ * \param iterator             A pointer to an existing iterator.
+ * \param filename             The path to the FLAC file.
+ * \param read_only            If \c true, the FLAC file will be opened
+ *                             in read-only mode; if \c false, the FLAC
+ *                             file will be opened for edit even if no
+ *                             edits are performed.
+ * \param preserve_file_stats  If \c true, the owner and modification
+ *                             time will be preserved even if the FLAC
+ *                             file is written to.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \code filename != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if a memory allocation error occurs, the file can't be
+ *    opened, or another error occurs, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_init(FLAC__Metadata_SimpleIterator *iterator, const char *filename, FLAC__bool read_only, FLAC__bool preserve_file_stats);
+
+/** Returns \c true if the FLAC file is writable.  If \c false, calls to
+ *  FLAC__metadata_simple_iterator_set_block() and
+ *  FLAC__metadata_simple_iterator_insert_block_after() will fail.
+ *
+ * \param iterator             A pointer to an existing iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ * \retval FLAC__bool
+ *    See above.
+ */
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_writable(const FLAC__Metadata_SimpleIterator *iterator);
+
+/** Moves the iterator forward one metadata block, returning \c false if
+ *  already at the end.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ * \retval FLAC__bool
+ *    \c false if already at the last metadata block of the chain, else
+ *    \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_next(FLAC__Metadata_SimpleIterator *iterator);
+
+/** Moves the iterator backward one metadata block, returning \c false if
+ *  already at the beginning.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ * \retval FLAC__bool
+ *    \c false if already at the first metadata block of the chain, else
+ *    \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_prev(FLAC__Metadata_SimpleIterator *iterator);
+
+/** Returns a flag telling if the current metadata block is the last.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ * \retval FLAC__bool
+ *    \c true if the current metadata block is the last in the file,
+ *    else \c false.
+ */
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_last(const FLAC__Metadata_SimpleIterator *iterator);
+
+/** Get the offset of the metadata block at the current position.  This
+ *  avoids reading the actual block data which can save time for large
+ *  blocks.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ * \retval off_t
+ *    The offset of the metadata block at the current iterator position.
+ *    This is the byte offset relative to the beginning of the file of
+ *    the current metadata block's header.
+ */
+FLAC_API off_t FLAC__metadata_simple_iterator_get_block_offset(const FLAC__Metadata_SimpleIterator *iterator);
+
+/** Get the type of the metadata block at the current position.  This
+ *  avoids reading the actual block data which can save time for large
+ *  blocks.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ * \retval FLAC__MetadataType
+ *    The type of the metadata block at the current iterator position.
+ */
+FLAC_API FLAC__MetadataType FLAC__metadata_simple_iterator_get_block_type(const FLAC__Metadata_SimpleIterator *iterator);
+
+/** Get the length of the metadata block at the current position.  This
+ *  avoids reading the actual block data which can save time for large
+ *  blocks.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ * \retval uint32_t
+ *    The length of the metadata block at the current iterator position.
+ *    The is same length as that in the
+ *    <a href="http://xiph.org/flac/format.html#metadata_block_header">metadata block header</a>,
+ *    i.e. the length of the metadata body that follows the header.
+ */
+FLAC_API uint32_t FLAC__metadata_simple_iterator_get_block_length(const FLAC__Metadata_SimpleIterator *iterator);
+
+/** Get the application ID of the \c APPLICATION block at the current
+ *  position.  This avoids reading the actual block data which can save
+ *  time for large blocks.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \param id        A pointer to a buffer of at least \c 4 bytes where
+ *                  the ID will be stored.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \code id != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ * \retval FLAC__bool
+ *    \c true if the ID was successfully read, else \c false, in which
+ *    case you should check FLAC__metadata_simple_iterator_status() to
+ *    find out why.  If the status is
+ *    \c FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT, then the
+ *    current metadata block is not an \c APPLICATION block.  Otherwise
+ *    if the status is
+ *    \c FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR or
+ *    \c FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR, an I/O error
+ *    occurred and the iterator can no longer be used.
+ */
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_get_application_id(FLAC__Metadata_SimpleIterator *iterator, FLAC__byte *id);
+
+/** Get the metadata block at the current position.  You can modify the
+ *  block but must use FLAC__metadata_simple_iterator_set_block() to
+ *  write it back to the FLAC file.
+ *
+ *  You must call FLAC__metadata_object_delete() on the returned object
+ *  when you are finished with it.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ * \retval FLAC__StreamMetadata*
+ *    The current metadata block, or \c NULL if there was a memory
+ *    allocation error.
+ */
+FLAC_API FLAC__StreamMetadata *FLAC__metadata_simple_iterator_get_block(FLAC__Metadata_SimpleIterator *iterator);
+
+/** Write a block back to the FLAC file.  This function tries to be
+ *  as efficient as possible; how the block is actually written is
+ *  shown by the following:
+ *
+ *  Existing block is a STREAMINFO block and the new block is a
+ *  STREAMINFO block: the new block is written in place.  Make sure
+ *  you know what you're doing when changing the values of a
+ *  STREAMINFO block.
+ *
+ *  Existing block is a STREAMINFO block and the new block is a
+ *  not a STREAMINFO block: this is an error since the first block
+ *  must be a STREAMINFO block.  Returns \c false without altering the
+ *  file.
+ *
+ *  Existing block is not a STREAMINFO block and the new block is a
+ *  STREAMINFO block: this is an error since there may be only one
+ *  STREAMINFO block.  Returns \c false without altering the file.
+ *
+ *  Existing block and new block are the same length: the existing
+ *  block will be replaced by the new block, written in place.
+ *
+ *  Existing block is longer than new block: if use_padding is \c true,
+ *  the existing block will be overwritten in place with the new
+ *  block followed by a PADDING block, if possible, to make the total
+ *  size the same as the existing block.  Remember that a padding
+ *  block requires at least four bytes so if the difference in size
+ *  between the new block and existing block is less than that, the
+ *  entire file will have to be rewritten, using the new block's
+ *  exact size.  If use_padding is \c false, the entire file will be
+ *  rewritten, replacing the existing block by the new block.
+ *
+ *  Existing block is shorter than new block: if use_padding is \c true,
+ *  the function will try and expand the new block into the following
+ *  PADDING block, if it exists and doing so won't shrink the PADDING
+ *  block to less than 4 bytes.  If there is no following PADDING
+ *  block, or it will shrink to less than 4 bytes, or use_padding is
+ *  \c false, the entire file is rewritten, replacing the existing block
+ *  with the new block.  Note that in this case any following PADDING
+ *  block is preserved as is.
+ *
+ *  After writing the block, the iterator will remain in the same
+ *  place, i.e. pointing to the new block.
+ *
+ * \param iterator     A pointer to an existing initialized iterator.
+ * \param block        The block to set.
+ * \param use_padding  See above.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ *    \code block != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if successful, else \c false.
+ */
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_set_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding);
+
+/** This is similar to FLAC__metadata_simple_iterator_set_block()
+ *  except that instead of writing over an existing block, it appends
+ *  a block after the existing block.  \a use_padding is again used to
+ *  tell the function to try an expand into following padding in an
+ *  attempt to avoid rewriting the entire file.
+ *
+ *  This function will fail and return \c false if given a STREAMINFO
+ *  block.
+ *
+ *  After writing the block, the iterator will be pointing to the
+ *  new block.
+ *
+ * \param iterator     A pointer to an existing initialized iterator.
+ * \param block        The block to set.
+ * \param use_padding  See above.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ *    \code block != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if successful, else \c false.
+ */
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_insert_block_after(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding);
+
+/** Deletes the block at the current position.  This will cause the
+ *  entire FLAC file to be rewritten, unless \a use_padding is \c true,
+ *  in which case the block will be replaced by an equal-sized PADDING
+ *  block.  The iterator will be left pointing to the block before the
+ *  one just deleted.
+ *
+ *  You may not delete the STREAMINFO block.
+ *
+ * \param iterator     A pointer to an existing initialized iterator.
+ * \param use_padding  See above.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_simple_iterator_init()
+ * \retval FLAC__bool
+ *    \c true if successful, else \c false.
+ */
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_delete_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__bool use_padding);
+
+/* \} */
+
+
+/** \defgroup flac_metadata_level2 FLAC/metadata.h: metadata level 2 interface
+ *  \ingroup flac_metadata
+ *
+ * \brief
+ * The level 2 interface provides read-write access to FLAC file metadata;
+ * all metadata is read into memory, operated on in memory, and then written
+ * to file, which is more efficient than level 1 when editing multiple blocks.
+ *
+ * Currently Ogg FLAC is supported for read only, via
+ * FLAC__metadata_chain_read_ogg() but a subsequent
+ * FLAC__metadata_chain_write() will fail.
+ *
+ * The general usage of this interface is:
+ *
+ * - Create a new chain using FLAC__metadata_chain_new().  A chain is a
+ *   linked list of FLAC metadata blocks.
+ * - Read all metadata into the chain from a FLAC file using
+ *   FLAC__metadata_chain_read() or FLAC__metadata_chain_read_ogg() and
+ *   check the status.
+ * - Optionally, consolidate the padding using
+ *   FLAC__metadata_chain_merge_padding() or
+ *   FLAC__metadata_chain_sort_padding().
+ * - Create a new iterator using FLAC__metadata_iterator_new()
+ * - Initialize the iterator to point to the first element in the chain
+ *   using FLAC__metadata_iterator_init()
+ * - Traverse the chain using FLAC__metadata_iterator_next and
+ *   FLAC__metadata_iterator_prev().
+ * - Get a block for reading or modification using
+ *   FLAC__metadata_iterator_get_block().  The pointer to the object
+ *   inside the chain is returned, so the block is yours to modify.
+ *   Changes will be reflected in the FLAC file when you write the
+ *   chain.  You can also add and delete blocks (see functions below).
+ * - When done, write out the chain using FLAC__metadata_chain_write().
+ *   Make sure to read the whole comment to the function below.
+ * - Delete the chain using FLAC__metadata_chain_delete().
+ *
+ * \note
+ * Even though the FLAC file is not open while the chain is being
+ * manipulated, you must not alter the file externally during
+ * this time.  The chain assumes the FLAC file will not change
+ * between the time of FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg()
+ * and FLAC__metadata_chain_write().
+ *
+ * \note
+ * Do not modify the is_last, length, or type fields of returned
+ * FLAC__StreamMetadata objects.  These are managed automatically.
+ *
+ * \note
+ * The metadata objects returned by FLAC__metadata_iterator_get_block()
+ * are owned by the chain; do not FLAC__metadata_object_delete() them.
+ * In the same way, blocks passed to FLAC__metadata_iterator_set_block()
+ * become owned by the chain and they will be deleted when the chain is
+ * deleted.
+ *
+ * \{
+ */
+
+struct FLAC__Metadata_Chain;
+/** The opaque structure definition for the level 2 chain type.
+ */
+typedef struct FLAC__Metadata_Chain FLAC__Metadata_Chain;
+
+struct FLAC__Metadata_Iterator;
+/** The opaque structure definition for the level 2 iterator type.
+ */
+typedef struct FLAC__Metadata_Iterator FLAC__Metadata_Iterator;
+
+typedef enum {
+	FLAC__METADATA_CHAIN_STATUS_OK = 0,
+	/**< The chain is in the normal OK state */
+
+	FLAC__METADATA_CHAIN_STATUS_ILLEGAL_INPUT,
+	/**< The data passed into a function violated the function's usage criteria */
+
+	FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE,
+	/**< The chain could not open the target file */
+
+	FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE,
+	/**< The chain could not find the FLAC signature at the start of the file */
+
+	FLAC__METADATA_CHAIN_STATUS_NOT_WRITABLE,
+	/**< The chain tried to write to a file that was not writable */
+
+	FLAC__METADATA_CHAIN_STATUS_BAD_METADATA,
+	/**< The chain encountered input that does not conform to the FLAC metadata specification */
+
+	FLAC__METADATA_CHAIN_STATUS_READ_ERROR,
+	/**< The chain encountered an error while reading the FLAC file */
+
+	FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR,
+	/**< The chain encountered an error while seeking in the FLAC file */
+
+	FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR,
+	/**< The chain encountered an error while writing the FLAC file */
+
+	FLAC__METADATA_CHAIN_STATUS_RENAME_ERROR,
+	/**< The chain encountered an error renaming the FLAC file */
+
+	FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR,
+	/**< The chain encountered an error removing the temporary file */
+
+	FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR,
+	/**< Memory allocation failed */
+
+	FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR,
+	/**< The caller violated an assertion or an unexpected error occurred */
+
+	FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS,
+	/**< One or more of the required callbacks was NULL */
+
+	FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH,
+	/**< FLAC__metadata_chain_write() was called on a chain read by
+	 *   FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks(),
+	 *   or
+	 *   FLAC__metadata_chain_write_with_callbacks()/FLAC__metadata_chain_write_with_callbacks_and_tempfile()
+	 *   was called on a chain read by
+	 *   FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg().
+	 *   Matching read/write methods must always be used. */
+
+	FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL
+	/**< FLAC__metadata_chain_write_with_callbacks() was called when the
+	 *   chain write requires a tempfile; use
+	 *   FLAC__metadata_chain_write_with_callbacks_and_tempfile() instead.
+	 *   Or, FLAC__metadata_chain_write_with_callbacks_and_tempfile() was
+	 *   called when the chain write does not require a tempfile; use
+	 *   FLAC__metadata_chain_write_with_callbacks() instead.
+	 *   Always check FLAC__metadata_chain_check_if_tempfile_needed()
+	 *   before writing via callbacks. */
+
+} FLAC__Metadata_ChainStatus;
+
+/** Maps a FLAC__Metadata_ChainStatus to a C string.
+ *
+ *  Using a FLAC__Metadata_ChainStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__Metadata_ChainStatusString[];
+
+/*********** FLAC__Metadata_Chain ***********/
+
+/** Create a new chain instance.
+ *
+ * \retval FLAC__Metadata_Chain*
+ *    \c NULL if there was an error allocating memory, else the new instance.
+ */
+FLAC_API FLAC__Metadata_Chain *FLAC__metadata_chain_new(void);
+
+/** Free a chain instance.  Deletes the object pointed to by \a chain.
+ *
+ * \param chain  A pointer to an existing chain.
+ * \assert
+ *    \code chain != NULL \endcode
+ */
+FLAC_API void FLAC__metadata_chain_delete(FLAC__Metadata_Chain *chain);
+
+/** Get the current status of the chain.  Call this after a function
+ *  returns \c false to get the reason for the error.  Also resets the
+ *  status to FLAC__METADATA_CHAIN_STATUS_OK.
+ *
+ * \param chain    A pointer to an existing chain.
+ * \assert
+ *    \code chain != NULL \endcode
+ * \retval FLAC__Metadata_ChainStatus
+ *    The current status of the chain.
+ */
+FLAC_API FLAC__Metadata_ChainStatus FLAC__metadata_chain_status(FLAC__Metadata_Chain *chain);
+
+/** Read all metadata from a FLAC file into the chain.
+ *
+ *  On Windows, filename must be a UTF-8 encoded filename, which libFLAC
+ *  internally translates to an appropriate representation to use with
+ *  _wfopen. On all other systems, filename is passed to fopen without
+ *  any translation.
+ *
+ * \param chain    A pointer to an existing chain.
+ * \param filename The path to the FLAC file to read.
+ * \assert
+ *    \code chain != NULL \endcode
+ *    \code filename != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if a valid list of metadata blocks was read from
+ *    \a filename, else \c false.  On failure, check the status with
+ *    FLAC__metadata_chain_status().
+ */
+FLAC_API FLAC__bool FLAC__metadata_chain_read(FLAC__Metadata_Chain *chain, const char *filename);
+
+/** Read all metadata from an Ogg FLAC file into the chain.
+ *
+ *  On Windows, filename must be a UTF-8 encoded filename, which libFLAC
+ *  internally translates to an appropriate representation to use with
+ *  _wfopen. On all other systems, filename is passed to fopen without
+ *  any translation.
+ *
+ * \note Ogg FLAC metadata data writing is not supported yet and
+ * FLAC__metadata_chain_write() will fail.
+ *
+ * \param chain    A pointer to an existing chain.
+ * \param filename The path to the Ogg FLAC file to read.
+ * \assert
+ *    \code chain != NULL \endcode
+ *    \code filename != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if a valid list of metadata blocks was read from
+ *    \a filename, else \c false.  On failure, check the status with
+ *    FLAC__metadata_chain_status().
+ */
+FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg(FLAC__Metadata_Chain *chain, const char *filename);
+
+/** Read all metadata from a FLAC stream into the chain via I/O callbacks.
+ *
+ *  The \a handle need only be open for reading, but must be seekable.
+ *  The equivalent minimum stdio fopen() file mode is \c "r" (or \c "rb"
+ *  for Windows).
+ *
+ * \param chain    A pointer to an existing chain.
+ * \param handle   The I/O handle of the FLAC stream to read.  The
+ *                 handle will NOT be closed after the metadata is read;
+ *                 that is the duty of the caller.
+ * \param callbacks
+ *                 A set of callbacks to use for I/O.  The mandatory
+ *                 callbacks are \a read, \a seek, and \a tell.
+ * \assert
+ *    \code chain != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if a valid list of metadata blocks was read from
+ *    \a handle, else \c false.  On failure, check the status with
+ *    FLAC__metadata_chain_status().
+ */
+FLAC_API FLAC__bool FLAC__metadata_chain_read_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks);
+
+/** Read all metadata from an Ogg FLAC stream into the chain via I/O callbacks.
+ *
+ *  The \a handle need only be open for reading, but must be seekable.
+ *  The equivalent minimum stdio fopen() file mode is \c "r" (or \c "rb"
+ *  for Windows).
+ *
+ * \note Ogg FLAC metadata data writing is not supported yet and
+ * FLAC__metadata_chain_write() will fail.
+ *
+ * \param chain    A pointer to an existing chain.
+ * \param handle   The I/O handle of the Ogg FLAC stream to read.  The
+ *                 handle will NOT be closed after the metadata is read;
+ *                 that is the duty of the caller.
+ * \param callbacks
+ *                 A set of callbacks to use for I/O.  The mandatory
+ *                 callbacks are \a read, \a seek, and \a tell.
+ * \assert
+ *    \code chain != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if a valid list of metadata blocks was read from
+ *    \a handle, else \c false.  On failure, check the status with
+ *    FLAC__metadata_chain_status().
+ */
+FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks);
+
+/** Checks if writing the given chain would require the use of a
+ *  temporary file, or if it could be written in place.
+ *
+ *  Under certain conditions, padding can be utilized so that writing
+ *  edited metadata back to the FLAC file does not require rewriting the
+ *  entire file.  If rewriting is required, then a temporary workfile is
+ *  required.  When writing metadata using callbacks, you must check
+ *  this function to know whether to call
+ *  FLAC__metadata_chain_write_with_callbacks() or
+ *  FLAC__metadata_chain_write_with_callbacks_and_tempfile().  When
+ *  writing with FLAC__metadata_chain_write(), the temporary file is
+ *  handled internally.
+ *
+ * \param chain    A pointer to an existing chain.
+ * \param use_padding
+ *                 Whether or not padding will be allowed to be used
+ *                 during the write.  The value of \a use_padding given
+ *                 here must match the value later passed to
+ *                 FLAC__metadata_chain_write_with_callbacks() or
+ *                 FLAC__metadata_chain_write_with_callbacks_with_tempfile().
+ * \assert
+ *    \code chain != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if writing the current chain would require a tempfile, or
+ *    \c false if metadata can be written in place.
+ */
+FLAC_API FLAC__bool FLAC__metadata_chain_check_if_tempfile_needed(FLAC__Metadata_Chain *chain, FLAC__bool use_padding);
+
+/** Write all metadata out to the FLAC file.  This function tries to be as
+ *  efficient as possible; how the metadata is actually written is shown by
+ *  the following:
+ *
+ *  If the current chain is the same size as the existing metadata, the new
+ *  data is written in place.
+ *
+ *  If the current chain is longer than the existing metadata, and
+ *  \a use_padding is \c true, and the last block is a PADDING block of
+ *  sufficient length, the function will truncate the final padding block
+ *  so that the overall size of the metadata is the same as the existing
+ *  metadata, and then just rewrite the metadata.  Otherwise, if not all of
+ *  the above conditions are met, the entire FLAC file must be rewritten.
+ *  If you want to use padding this way it is a good idea to call
+ *  FLAC__metadata_chain_sort_padding() first so that you have the maximum
+ *  amount of padding to work with, unless you need to preserve ordering
+ *  of the PADDING blocks for some reason.
+ *
+ *  If the current chain is shorter than the existing metadata, and
+ *  \a use_padding is \c true, and the final block is a PADDING block, the padding
+ *  is extended to make the overall size the same as the existing data.  If
+ *  \a use_padding is \c true and the last block is not a PADDING block, a new
+ *  PADDING block is added to the end of the new data to make it the same
+ *  size as the existing data (if possible, see the note to
+ *  FLAC__metadata_simple_iterator_set_block() about the four byte limit)
+ *  and the new data is written in place.  If none of the above apply or
+ *  \a use_padding is \c false, the entire FLAC file is rewritten.
+ *
+ *  If \a preserve_file_stats is \c true, the owner and modification time will
+ *  be preserved even if the FLAC file is written.
+ *
+ *  For this write function to be used, the chain must have been read with
+ *  FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg(), not
+ *  FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks().
+ *
+ * \param chain               A pointer to an existing chain.
+ * \param use_padding         See above.
+ * \param preserve_file_stats See above.
+ * \assert
+ *    \code chain != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if the write succeeded, else \c false.  On failure,
+ *    check the status with FLAC__metadata_chain_status().
+ */
+FLAC_API FLAC__bool FLAC__metadata_chain_write(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__bool preserve_file_stats);
+
+/** Write all metadata out to a FLAC stream via callbacks.
+ *
+ *  (See FLAC__metadata_chain_write() for the details on how padding is
+ *  used to write metadata in place if possible.)
+ *
+ *  The \a handle must be open for updating and be seekable.  The
+ *  equivalent minimum stdio fopen() file mode is \c "r+" (or \c "r+b"
+ *  for Windows).
+ *
+ *  For this write function to be used, the chain must have been read with
+ *  FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks(),
+ *  not FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg().
+ *  Also, FLAC__metadata_chain_check_if_tempfile_needed() must have returned
+ *  \c false.
+ *
+ * \param chain        A pointer to an existing chain.
+ * \param use_padding  See FLAC__metadata_chain_write()
+ * \param handle       The I/O handle of the FLAC stream to write.  The
+ *                     handle will NOT be closed after the metadata is
+ *                     written; that is the duty of the caller.
+ * \param callbacks    A set of callbacks to use for I/O.  The mandatory
+ *                     callbacks are \a write and \a seek.
+ * \assert
+ *    \code chain != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if the write succeeded, else \c false.  On failure,
+ *    check the status with FLAC__metadata_chain_status().
+ */
+FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks);
+
+/** Write all metadata out to a FLAC stream via callbacks.
+ *
+ *  (See FLAC__metadata_chain_write() for the details on how padding is
+ *  used to write metadata in place if possible.)
+ *
+ *  This version of the write-with-callbacks function must be used when
+ *  FLAC__metadata_chain_check_if_tempfile_needed() returns true.  In
+ *  this function, you must supply an I/O handle corresponding to the
+ *  FLAC file to edit, and a temporary handle to which the new FLAC
+ *  file will be written.  It is the caller's job to move this temporary
+ *  FLAC file on top of the original FLAC file to complete the metadata
+ *  edit.
+ *
+ *  The \a handle must be open for reading and be seekable.  The
+ *  equivalent minimum stdio fopen() file mode is \c "r" (or \c "rb"
+ *  for Windows).
+ *
+ *  The \a temp_handle must be open for writing.  The
+ *  equivalent minimum stdio fopen() file mode is \c "w" (or \c "wb"
+ *  for Windows).  It should be an empty stream, or at least positioned
+ *  at the start-of-file (in which case it is the caller's duty to
+ *  truncate it on return).
+ *
+ *  For this write function to be used, the chain must have been read with
+ *  FLAC__metadata_chain_read_with_callbacks()/FLAC__metadata_chain_read_ogg_with_callbacks(),
+ *  not FLAC__metadata_chain_read()/FLAC__metadata_chain_read_ogg().
+ *  Also, FLAC__metadata_chain_check_if_tempfile_needed() must have returned
+ *  \c true.
+ *
+ * \param chain        A pointer to an existing chain.
+ * \param use_padding  See FLAC__metadata_chain_write()
+ * \param handle       The I/O handle of the original FLAC stream to read.
+ *                     The handle will NOT be closed after the metadata is
+ *                     written; that is the duty of the caller.
+ * \param callbacks    A set of callbacks to use for I/O on \a handle.
+ *                     The mandatory callbacks are \a read, \a seek, and
+ *                     \a eof.
+ * \param temp_handle  The I/O handle of the FLAC stream to write.  The
+ *                     handle will NOT be closed after the metadata is
+ *                     written; that is the duty of the caller.
+ * \param temp_callbacks
+ *                     A set of callbacks to use for I/O on temp_handle.
+ *                     The only mandatory callback is \a write.
+ * \assert
+ *    \code chain != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if the write succeeded, else \c false.  On failure,
+ *    check the status with FLAC__metadata_chain_status().
+ */
+FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks_and_tempfile(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__IOHandle temp_handle, FLAC__IOCallbacks temp_callbacks);
+
+/** Merge adjacent PADDING blocks into a single block.
+ *
+ * \note This function does not write to the FLAC file, it only
+ * modifies the chain.
+ *
+ * \warning Any iterator on the current chain will become invalid after this
+ * call.  You should delete the iterator and get a new one.
+ *
+ * \param chain               A pointer to an existing chain.
+ * \assert
+ *    \code chain != NULL \endcode
+ */
+FLAC_API void FLAC__metadata_chain_merge_padding(FLAC__Metadata_Chain *chain);
+
+/** This function will move all PADDING blocks to the end on the metadata,
+ *  then merge them into a single block.
+ *
+ * \note This function does not write to the FLAC file, it only
+ * modifies the chain.
+ *
+ * \warning Any iterator on the current chain will become invalid after this
+ * call.  You should delete the iterator and get a new one.
+ *
+ * \param chain  A pointer to an existing chain.
+ * \assert
+ *    \code chain != NULL \endcode
+ */
+FLAC_API void FLAC__metadata_chain_sort_padding(FLAC__Metadata_Chain *chain);
+
+
+/*********** FLAC__Metadata_Iterator ***********/
+
+/** Create a new iterator instance.
+ *
+ * \retval FLAC__Metadata_Iterator*
+ *    \c NULL if there was an error allocating memory, else the new instance.
+ */
+FLAC_API FLAC__Metadata_Iterator *FLAC__metadata_iterator_new(void);
+
+/** Free an iterator instance.  Deletes the object pointed to by \a iterator.
+ *
+ * \param iterator  A pointer to an existing iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ */
+FLAC_API void FLAC__metadata_iterator_delete(FLAC__Metadata_Iterator *iterator);
+
+/** Initialize the iterator to point to the first metadata block in the
+ *  given chain.
+ *
+ * \param iterator  A pointer to an existing iterator.
+ * \param chain     A pointer to an existing and initialized (read) chain.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \code chain != NULL \endcode
+ */
+FLAC_API void FLAC__metadata_iterator_init(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Chain *chain);
+
+/** Moves the iterator forward one metadata block, returning \c false if
+ *  already at the end.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_iterator_init()
+ * \retval FLAC__bool
+ *    \c false if already at the last metadata block of the chain, else
+ *    \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_iterator_next(FLAC__Metadata_Iterator *iterator);
+
+/** Moves the iterator backward one metadata block, returning \c false if
+ *  already at the beginning.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_iterator_init()
+ * \retval FLAC__bool
+ *    \c false if already at the first metadata block of the chain, else
+ *    \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_iterator_prev(FLAC__Metadata_Iterator *iterator);
+
+/** Get the type of the metadata block at the current position.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_iterator_init()
+ * \retval FLAC__MetadataType
+ *    The type of the metadata block at the current iterator position.
+ */
+FLAC_API FLAC__MetadataType FLAC__metadata_iterator_get_block_type(const FLAC__Metadata_Iterator *iterator);
+
+/** Get the metadata block at the current position.  You can modify
+ *  the block in place but must write the chain before the changes
+ *  are reflected to the FLAC file.  You do not need to call
+ *  FLAC__metadata_iterator_set_block() to reflect the changes;
+ *  the pointer returned by FLAC__metadata_iterator_get_block()
+ *  points directly into the chain.
+ *
+ * \warning
+ * Do not call FLAC__metadata_object_delete() on the returned object;
+ * to delete a block use FLAC__metadata_iterator_delete_block().
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_iterator_init()
+ * \retval FLAC__StreamMetadata*
+ *    The current metadata block.
+ */
+FLAC_API FLAC__StreamMetadata *FLAC__metadata_iterator_get_block(FLAC__Metadata_Iterator *iterator);
+
+/** Set the metadata block at the current position, replacing the existing
+ *  block.  The new block passed in becomes owned by the chain and it will be
+ *  deleted when the chain is deleted.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \param block     A pointer to a metadata block.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_iterator_init()
+ *    \code block != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the conditions in the above description are not met, or
+ *    a memory allocation error occurs, otherwise \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_iterator_set_block(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block);
+
+/** Removes the current block from the chain.  If \a replace_with_padding is
+ *  \c true, the block will instead be replaced with a padding block of equal
+ *  size.  You can not delete the STREAMINFO block.  The iterator will be
+ *  left pointing to the block before the one just "deleted", even if
+ *  \a replace_with_padding is \c true.
+ *
+ * \param iterator              A pointer to an existing initialized iterator.
+ * \param replace_with_padding  See above.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_iterator_init()
+ * \retval FLAC__bool
+ *    \c false if the conditions in the above description are not met,
+ *    otherwise \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_iterator_delete_block(FLAC__Metadata_Iterator *iterator, FLAC__bool replace_with_padding);
+
+/** Insert a new block before the current block.  You cannot insert a block
+ *  before the first STREAMINFO block.  You cannot insert a STREAMINFO block
+ *  as there can be only one, the one that already exists at the head when you
+ *  read in a chain.  The chain takes ownership of the new block and it will be
+ *  deleted when the chain is deleted.  The iterator will be left pointing to
+ *  the new block.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \param block     A pointer to a metadata block to insert.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_iterator_init()
+ * \retval FLAC__bool
+ *    \c false if the conditions in the above description are not met, or
+ *    a memory allocation error occurs, otherwise \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_before(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block);
+
+/** Insert a new block after the current block.  You cannot insert a STREAMINFO
+ *  block as there can be only one, the one that already exists at the head when
+ *  you read in a chain.  The chain takes ownership of the new block and it will
+ *  be deleted when the chain is deleted.  The iterator will be left pointing to
+ *  the new block.
+ *
+ * \param iterator  A pointer to an existing initialized iterator.
+ * \param block     A pointer to a metadata block to insert.
+ * \assert
+ *    \code iterator != NULL \endcode
+ *    \a iterator has been successfully initialized with
+ *    FLAC__metadata_iterator_init()
+ * \retval FLAC__bool
+ *    \c false if the conditions in the above description are not met, or
+ *    a memory allocation error occurs, otherwise \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_after(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block);
+
+/* \} */
+
+
+/** \defgroup flac_metadata_object FLAC/metadata.h: metadata object methods
+ *  \ingroup flac_metadata
+ *
+ * \brief
+ * This module contains methods for manipulating FLAC metadata objects.
+ *
+ * Since many are variable length we have to be careful about the memory
+ * management.  We decree that all pointers to data in the object are
+ * owned by the object and memory-managed by the object.
+ *
+ * Use the FLAC__metadata_object_new() and FLAC__metadata_object_delete()
+ * functions to create all instances.  When using the
+ * FLAC__metadata_object_set_*() functions to set pointers to data, set
+ * \a copy to \c true to have the function make it's own copy of the data, or
+ * to \c false to give the object ownership of your data.  In the latter case
+ * your pointer must be freeable by free() and will be free()d when the object
+ * is FLAC__metadata_object_delete()d.  It is legal to pass a null pointer as
+ * the data pointer to a FLAC__metadata_object_set_*() function as long as
+ * the length argument is 0 and the \a copy argument is \c false.
+ *
+ * The FLAC__metadata_object_new() and FLAC__metadata_object_clone() function
+ * will return \c NULL in the case of a memory allocation error, otherwise a new
+ * object.  The FLAC__metadata_object_set_*() functions return \c false in the
+ * case of a memory allocation error.
+ *
+ * We don't have the convenience of C++ here, so note that the library relies
+ * on you to keep the types straight.  In other words, if you pass, for
+ * example, a FLAC__StreamMetadata* that represents a STREAMINFO block to
+ * FLAC__metadata_object_application_set_data(), you will get an assertion
+ * failure.
+ *
+ * For convenience the FLAC__metadata_object_vorbiscomment_*() functions
+ * maintain a trailing NUL on each Vorbis comment entry.  This is not counted
+ * toward the length or stored in the stream, but it can make working with plain
+ * comments (those that don't contain embedded-NULs in the value) easier.
+ * Entries passed into these functions have trailing NULs added if missing, and
+ * returned entries are guaranteed to have a trailing NUL.
+ *
+ * The FLAC__metadata_object_vorbiscomment_*() functions that take a Vorbis
+ * comment entry/name/value will first validate that it complies with the Vorbis
+ * comment specification and return false if it does not.
+ *
+ * There is no need to recalculate the length field on metadata blocks you
+ * have modified.  They will be calculated automatically before they  are
+ * written back to a file.
+ *
+ * \{
+ */
+
+
+/** Create a new metadata object instance of the given type.
+ *
+ *  The object will be "empty"; i.e. values and data pointers will be \c 0,
+ *  with the exception of FLAC__METADATA_TYPE_VORBIS_COMMENT, which will have
+ *  the vendor string set (but zero comments).
+ *
+ *  Do not pass in a value greater than or equal to
+ *  \a FLAC__METADATA_TYPE_UNDEFINED unless you really know what you're
+ *  doing.
+ *
+ * \param type  Type of object to create
+ * \retval FLAC__StreamMetadata*
+ *    \c NULL if there was an error allocating memory or the type code is
+ *    greater than FLAC__MAX_METADATA_TYPE_CODE, else the new instance.
+ */
+FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type);
+
+/** Create a copy of an existing metadata object.
+ *
+ *  The copy is a "deep" copy, i.e. dynamically allocated data within the
+ *  object is also copied.  The caller takes ownership of the new block and
+ *  is responsible for freeing it with FLAC__metadata_object_delete().
+ *
+ * \param object  Pointer to object to copy.
+ * \assert
+ *    \code object != NULL \endcode
+ * \retval FLAC__StreamMetadata*
+ *    \c NULL if there was an error allocating memory, else the new instance.
+ */
+FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object);
+
+/** Free a metadata object.  Deletes the object pointed to by \a object.
+ *
+ *  The delete is a "deep" delete, i.e. dynamically allocated data within the
+ *  object is also deleted.
+ *
+ * \param object  A pointer to an existing object.
+ * \assert
+ *    \code object != NULL \endcode
+ */
+FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object);
+
+/** Compares two metadata objects.
+ *
+ *  The compare is "deep", i.e. dynamically allocated data within the
+ *  object is also compared.
+ *
+ * \param block1  A pointer to an existing object.
+ * \param block2  A pointer to an existing object.
+ * \assert
+ *    \code block1 != NULL \endcode
+ *    \code block2 != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if objects are identical, else \c false.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_is_equal(const FLAC__StreamMetadata *block1, const FLAC__StreamMetadata *block2);
+
+/** Sets the application data of an APPLICATION block.
+ *
+ *  If \a copy is \c true, a copy of the data is stored; otherwise, the object
+ *  takes ownership of the pointer.  The existing data will be freed if this
+ *  function is successful, otherwise the original data will remain if \a copy
+ *  is \c true and malloc() fails.
+ *
+ * \note It is safe to pass a const pointer to \a data if \a copy is \c true.
+ *
+ * \param object  A pointer to an existing APPLICATION object.
+ * \param data    A pointer to the data to set.
+ * \param length  The length of \a data in bytes.
+ * \param copy    See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_APPLICATION \endcode
+ *    \code (data != NULL && length > 0) ||
+ * (data == NULL && length == 0 && copy == false) \endcode
+ * \retval FLAC__bool
+ *    \c false if \a copy is \c true and malloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, uint32_t length, FLAC__bool copy);
+
+/** Resize the seekpoint array.
+ *
+ *  If the size shrinks, elements will truncated; if it grows, new placeholder
+ *  points will be added to the end. If this function returns false, the
+ *  object is left untouched.
+ *
+ * \param object          A pointer to an existing SEEKTABLE object.
+ * \param new_num_points  The desired length of the array; may be \c 0.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ *    \code (object->data.seek_table.points == NULL && object->data.seek_table.num_points == 0) ||
+ * (object->data.seek_table.points != NULL && object->data.seek_table.num_points > 0) \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation error, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_resize_points(FLAC__StreamMetadata *object, uint32_t new_num_points);
+
+/** Set a seekpoint in a seektable.
+ *
+ * \param object     A pointer to an existing SEEKTABLE object.
+ * \param point_num  Index into seekpoint array to set.
+ * \param point      The point to set.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ *    \code object->data.seek_table.num_points > point_num \endcode
+ */
+FLAC_API void FLAC__metadata_object_seektable_set_point(FLAC__StreamMetadata *object, uint32_t point_num, FLAC__StreamMetadata_SeekPoint point);
+
+/** Insert a seekpoint into a seektable.
+ *
+ * \param object     A pointer to an existing SEEKTABLE object.
+ * \param point_num  Index into seekpoint array to set.
+ * \param point      The point to set.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ *    \code object->data.seek_table.num_points >= point_num \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation error, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_insert_point(FLAC__StreamMetadata *object, uint32_t point_num, FLAC__StreamMetadata_SeekPoint point);
+
+/** Delete a seekpoint from a seektable.
+ *
+ * \param object     A pointer to an existing SEEKTABLE object.
+ * \param point_num  Index into seekpoint array to set.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ *    \code object->data.seek_table.num_points > point_num \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation error, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_delete_point(FLAC__StreamMetadata *object, uint32_t point_num);
+
+/** Check a seektable to see if it conforms to the FLAC specification.
+ *  See the format specification for limits on the contents of the
+ *  seektable.
+ *
+ * \param object  A pointer to an existing SEEKTABLE object.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ * \retval FLAC__bool
+ *    \c false if seek table is illegal, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_is_legal(const FLAC__StreamMetadata *object);
+
+/** Append a number of placeholder points to the end of a seek table.
+ *
+ * \note
+ * As with the other ..._seektable_template_... functions, you should
+ * call FLAC__metadata_object_seektable_template_sort() when finished
+ * to make the seek table legal.
+ *
+ * \param object  A pointer to an existing SEEKTABLE object.
+ * \param num     The number of placeholder points to append.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_placeholders(FLAC__StreamMetadata *object, uint32_t num);
+
+/** Append a specific seek point template to the end of a seek table.
+ *
+ * \note
+ * As with the other ..._seektable_template_... functions, you should
+ * call FLAC__metadata_object_seektable_template_sort() when finished
+ * to make the seek table legal.
+ *
+ * \param object  A pointer to an existing SEEKTABLE object.
+ * \param sample_number  The sample number of the seek point template.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_point(FLAC__StreamMetadata *object, FLAC__uint64 sample_number);
+
+/** Append specific seek point templates to the end of a seek table.
+ *
+ * \note
+ * As with the other ..._seektable_template_... functions, you should
+ * call FLAC__metadata_object_seektable_template_sort() when finished
+ * to make the seek table legal.
+ *
+ * \param object  A pointer to an existing SEEKTABLE object.
+ * \param sample_numbers  An array of sample numbers for the seek points.
+ * \param num     The number of seek point templates to append.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_points(FLAC__StreamMetadata *object, FLAC__uint64 sample_numbers[], uint32_t num);
+
+/** Append a set of evenly-spaced seek point templates to the end of a
+ *  seek table.
+ *
+ * \note
+ * As with the other ..._seektable_template_... functions, you should
+ * call FLAC__metadata_object_seektable_template_sort() when finished
+ * to make the seek table legal.
+ *
+ * \param object  A pointer to an existing SEEKTABLE object.
+ * \param num     The number of placeholder points to append.
+ * \param total_samples  The total number of samples to be encoded;
+ *                       the seekpoints will be spaced approximately
+ *                       \a total_samples / \a num samples apart.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ *    \code total_samples > 0 \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points(FLAC__StreamMetadata *object, uint32_t num, FLAC__uint64 total_samples);
+
+/** Append a set of evenly-spaced seek point templates to the end of a
+ *  seek table.
+ *
+ * \note
+ * As with the other ..._seektable_template_... functions, you should
+ * call FLAC__metadata_object_seektable_template_sort() when finished
+ * to make the seek table legal.
+ *
+ * \param object  A pointer to an existing SEEKTABLE object.
+ * \param samples The number of samples apart to space the placeholder
+ *                points.  The first point will be at sample \c 0, the
+ *                second at sample \a samples, then 2*\a samples, and
+ *                so on.  As long as \a samples and \a total_samples
+ *                are greater than \c 0, there will always be at least
+ *                one seekpoint at sample \c 0.
+ * \param total_samples  The total number of samples to be encoded;
+ *                       the seekpoints will be spaced
+ *                       \a samples samples apart.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ *    \code samples > 0 \endcode
+ *    \code total_samples > 0 \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(FLAC__StreamMetadata *object, uint32_t samples, FLAC__uint64 total_samples);
+
+/** Sort a seek table's seek points according to the format specification,
+ *  removing duplicates.
+ *
+ * \param object   A pointer to a seek table to be sorted.
+ * \param compact  If \c false, behaves like FLAC__format_seektable_sort().
+ *                 If \c true, duplicates are deleted and the seek table is
+ *                 shrunk appropriately; the number of placeholder points
+ *                 present in the seek table will be the same after the call
+ *                 as before.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_SEEKTABLE \endcode
+ * \retval FLAC__bool
+ *    \c false if realloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_sort(FLAC__StreamMetadata *object, FLAC__bool compact);
+
+/** Sets the vendor string in a VORBIS_COMMENT block.
+ *
+ *  For convenience, a trailing NUL is added to the entry if it doesn't have
+ *  one already.
+ *
+ *  If \a copy is \c true, a copy of the entry is stored; otherwise, the object
+ *  takes ownership of the \c entry.entry pointer.
+ *
+ *  \note If this function returns \c false, the caller still owns the
+ *  pointer.
+ *
+ * \param object  A pointer to an existing VORBIS_COMMENT object.
+ * \param entry   The entry to set the vendor string to.
+ * \param copy    See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
+ *    \code (entry.entry != NULL && entry.length > 0) ||
+ * (entry.entry == NULL && entry.length == 0) \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails or \a entry does not comply with the
+ *    Vorbis comment specification, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_vendor_string(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
+
+/** Resize the comment array.
+ *
+ *  If the size shrinks, elements will truncated; if it grows, new empty
+ *  fields will be added to the end.  If this function returns false, the
+ *  object is left untouched.
+ *
+ * \param object            A pointer to an existing VORBIS_COMMENT object.
+ * \param new_num_comments  The desired length of the array; may be \c 0.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
+ *    \code (object->data.vorbis_comment.comments == NULL && object->data.vorbis_comment.num_comments == 0) ||
+ * (object->data.vorbis_comment.comments != NULL && object->data.vorbis_comment.num_comments > 0) \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_resize_comments(FLAC__StreamMetadata *object, uint32_t new_num_comments);
+
+/** Sets a comment in a VORBIS_COMMENT block.
+ *
+ *  For convenience, a trailing NUL is added to the entry if it doesn't have
+ *  one already.
+ *
+ *  If \a copy is \c true, a copy of the entry is stored; otherwise, the object
+ *  takes ownership of the \c entry.entry pointer.
+ *
+ *  \note If this function returns \c false, the caller still owns the
+ *  pointer.
+ *
+ * \param object       A pointer to an existing VORBIS_COMMENT object.
+ * \param comment_num  Index into comment array to set.
+ * \param entry        The entry to set the comment to.
+ * \param copy         See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
+ *    \code comment_num < object->data.vorbis_comment.num_comments \endcode
+ *    \code (entry.entry != NULL && entry.length > 0) ||
+ * (entry.entry == NULL && entry.length == 0) \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails or \a entry does not comply with the
+ *    Vorbis comment specification, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_comment(FLAC__StreamMetadata *object, uint32_t comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
+
+/** Insert a comment in a VORBIS_COMMENT block at the given index.
+ *
+ *  For convenience, a trailing NUL is added to the entry if it doesn't have
+ *  one already.
+ *
+ *  If \a copy is \c true, a copy of the entry is stored; otherwise, the object
+ *  takes ownership of the \c entry.entry pointer.
+ *
+ *  \note If this function returns \c false, the caller still owns the
+ *  pointer.
+ *
+ * \param object       A pointer to an existing VORBIS_COMMENT object.
+ * \param comment_num  The index at which to insert the comment.  The comments
+ *                     at and after \a comment_num move right one position.
+ *                     To append a comment to the end, set \a comment_num to
+ *                     \c object->data.vorbis_comment.num_comments .
+ * \param entry        The comment to insert.
+ * \param copy         See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
+ *    \code object->data.vorbis_comment.num_comments >= comment_num \endcode
+ *    \code (entry.entry != NULL && entry.length > 0) ||
+ * (entry.entry == NULL && entry.length == 0 && copy == false) \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails or \a entry does not comply with the
+ *    Vorbis comment specification, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_insert_comment(FLAC__StreamMetadata *object, uint32_t comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
+
+/** Appends a comment to a VORBIS_COMMENT block.
+ *
+ *  For convenience, a trailing NUL is added to the entry if it doesn't have
+ *  one already.
+ *
+ *  If \a copy is \c true, a copy of the entry is stored; otherwise, the object
+ *  takes ownership of the \c entry.entry pointer.
+ *
+ *  \note If this function returns \c false, the caller still owns the
+ *  pointer.
+ *
+ * \param object       A pointer to an existing VORBIS_COMMENT object.
+ * \param entry        The comment to insert.
+ * \param copy         See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
+ *    \code (entry.entry != NULL && entry.length > 0) ||
+ * (entry.entry == NULL && entry.length == 0 && copy == false) \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails or \a entry does not comply with the
+ *    Vorbis comment specification, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_append_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy);
+
+/** Replaces comments in a VORBIS_COMMENT block with a new one.
+ *
+ *  For convenience, a trailing NUL is added to the entry if it doesn't have
+ *  one already.
+ *
+ *  Depending on the value of \a all, either all or just the first comment
+ *  whose field name(s) match the given entry's name will be replaced by the
+ *  given entry.  If no comments match, \a entry will simply be appended.
+ *
+ *  If \a copy is \c true, a copy of the entry is stored; otherwise, the object
+ *  takes ownership of the \c entry.entry pointer.
+ *
+ *  \note If this function returns \c false, the caller still owns the
+ *  pointer.
+ *
+ * \param object       A pointer to an existing VORBIS_COMMENT object.
+ * \param entry        The comment to insert.
+ * \param all          If \c true, all comments whose field name matches
+ *                     \a entry's field name will be removed, and \a entry will
+ *                     be inserted at the position of the first matching
+ *                     comment.  If \c false, only the first comment whose
+ *                     field name matches \a entry's field name will be
+ *                     replaced with \a entry.
+ * \param copy         See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
+ *    \code (entry.entry != NULL && entry.length > 0) ||
+ * (entry.entry == NULL && entry.length == 0 && copy == false) \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails or \a entry does not comply with the
+ *    Vorbis comment specification, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_replace_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool all, FLAC__bool copy);
+
+/** Delete a comment in a VORBIS_COMMENT block at the given index.
+ *
+ * \param object       A pointer to an existing VORBIS_COMMENT object.
+ * \param comment_num  The index of the comment to delete.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
+ *    \code object->data.vorbis_comment.num_comments > comment_num \endcode
+ * \retval FLAC__bool
+ *    \c false if realloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_delete_comment(FLAC__StreamMetadata *object, uint32_t comment_num);
+
+/** Creates a Vorbis comment entry from NUL-terminated name and value strings.
+ *
+ *  On return, the filled-in \a entry->entry pointer will point to malloc()ed
+ *  memory and shall be owned by the caller.  For convenience the entry will
+ *  have a terminating NUL.
+ *
+ * \param entry              A pointer to a Vorbis comment entry.  The entry's
+ *                           \c entry pointer should not point to allocated
+ *                           memory as it will be overwritten.
+ * \param field_name         The field name in ASCII, \c NUL terminated.
+ * \param field_value        The field value in UTF-8, \c NUL terminated.
+ * \assert
+ *    \code entry != NULL \endcode
+ *    \code field_name != NULL \endcode
+ *    \code field_value != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if malloc() fails, or if \a field_name or \a field_value does
+ *    not comply with the Vorbis comment specification, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(FLAC__StreamMetadata_VorbisComment_Entry *entry, const char *field_name, const char *field_value);
+
+/** Splits a Vorbis comment entry into NUL-terminated name and value strings.
+ *
+ *  The returned pointers to name and value will be allocated by malloc()
+ *  and shall be owned by the caller.
+ *
+ * \param entry              An existing Vorbis comment entry.
+ * \param field_name         The address of where the returned pointer to the
+ *                           field name will be stored.
+ * \param field_value        The address of where the returned pointer to the
+ *                           field value will be stored.
+ * \assert
+ *    \code (entry.entry != NULL && entry.length > 0) \endcode
+ *    \code memchr(entry.entry, '=', entry.length) != NULL \endcode
+ *    \code field_name != NULL \endcode
+ *    \code field_value != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation fails or \a entry does not comply with the
+ *    Vorbis comment specification, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_to_name_value_pair(const FLAC__StreamMetadata_VorbisComment_Entry entry, char **field_name, char **field_value);
+
+/** Check if the given Vorbis comment entry's field name matches the given
+ *  field name.
+ *
+ * \param entry              An existing Vorbis comment entry.
+ * \param field_name         The field name to check.
+ * \param field_name_length  The length of \a field_name, not including the
+ *                           terminating \c NUL.
+ * \assert
+ *    \code (entry.entry != NULL && entry.length > 0) \endcode
+ * \retval FLAC__bool
+ *    \c true if the field names match, else \c false
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(const FLAC__StreamMetadata_VorbisComment_Entry entry, const char *field_name, uint32_t field_name_length);
+
+/** Find a Vorbis comment with the given field name.
+ *
+ *  The search begins at entry number \a offset; use an offset of 0 to
+ *  search from the beginning of the comment array.
+ *
+ * \param object      A pointer to an existing VORBIS_COMMENT object.
+ * \param offset      The offset into the comment array from where to start
+ *                    the search.
+ * \param field_name  The field name of the comment to find.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
+ *    \code field_name != NULL \endcode
+ * \retval int
+ *    The offset in the comment array of the first comment whose field
+ *    name matches \a field_name, or \c -1 if no match was found.
+ */
+FLAC_API int FLAC__metadata_object_vorbiscomment_find_entry_from(const FLAC__StreamMetadata *object, uint32_t offset, const char *field_name);
+
+/** Remove first Vorbis comment matching the given field name.
+ *
+ * \param object      A pointer to an existing VORBIS_COMMENT object.
+ * \param field_name  The field name of comment to delete.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
+ * \retval int
+ *    \c -1 for memory allocation error, \c 0 for no matching entries,
+ *    \c 1 for one matching entry deleted.
+ */
+FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name);
+
+/** Remove all Vorbis comments matching the given field name.
+ *
+ * \param object      A pointer to an existing VORBIS_COMMENT object.
+ * \param field_name  The field name of comments to delete.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT \endcode
+ * \retval int
+ *    \c -1 for memory allocation error, \c 0 for no matching entries,
+ *    else the number of matching entries deleted.
+ */
+FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name);
+
+/** Create a new CUESHEET track instance.
+ *
+ *  The object will be "empty"; i.e. values and data pointers will be \c 0.
+ *
+ * \retval FLAC__StreamMetadata_CueSheet_Track*
+ *    \c NULL if there was an error allocating memory, else the new instance.
+ */
+FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_new(void);
+
+/** Create a copy of an existing CUESHEET track object.
+ *
+ *  The copy is a "deep" copy, i.e. dynamically allocated data within the
+ *  object is also copied.  The caller takes ownership of the new object and
+ *  is responsible for freeing it with
+ *  FLAC__metadata_object_cuesheet_track_delete().
+ *
+ * \param object  Pointer to object to copy.
+ * \assert
+ *    \code object != NULL \endcode
+ * \retval FLAC__StreamMetadata_CueSheet_Track*
+ *    \c NULL if there was an error allocating memory, else the new instance.
+ */
+FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object);
+
+/** Delete a CUESHEET track object
+ *
+ * \param object       A pointer to an existing CUESHEET track object.
+ * \assert
+ *    \code object != NULL \endcode
+ */
+FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object);
+
+/** Resize a track's index point array.
+ *
+ *  If the size shrinks, elements will truncated; if it grows, new blank
+ *  indices will be added to the end. If this function returns false, the
+ *  track object is left untouched.
+ *
+ * \param object           A pointer to an existing CUESHEET object.
+ * \param track_num        The index of the track to modify.  NOTE: this is not
+ *                         necessarily the same as the track's \a number field.
+ * \param new_num_indices  The desired length of the array; may be \c 0.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ *    \code object->data.cue_sheet.num_tracks > track_num \endcode
+ *    \code (object->data.cue_sheet.tracks[track_num].indices == NULL && object->data.cue_sheet.tracks[track_num].num_indices == 0) ||
+ * (object->data.cue_sheet.tracks[track_num].indices != NULL && object->data.cue_sheet.tracks[track_num].num_indices > 0) \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation error, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t new_num_indices);
+
+/** Insert an index point in a CUESHEET track at the given index.
+ *
+ * \param object       A pointer to an existing CUESHEET object.
+ * \param track_num    The index of the track to modify.  NOTE: this is not
+ *                     necessarily the same as the track's \a number field.
+ * \param index_num    The index into the track's index array at which to
+ *                     insert the index point.  NOTE: this is not necessarily
+ *                     the same as the index point's \a number field.  The
+ *                     indices at and after \a index_num move right one
+ *                     position.  To append an index point to the end, set
+ *                     \a index_num to
+ *                     \c object->data.cue_sheet.tracks[track_num].num_indices .
+ * \param index        The index point to insert.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ *    \code object->data.cue_sheet.num_tracks > track_num \endcode
+ *    \code object->data.cue_sheet.tracks[track_num].num_indices >= index_num \endcode
+ * \retval FLAC__bool
+ *    \c false if realloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_index(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t index_num, FLAC__StreamMetadata_CueSheet_Index index);
+
+/** Insert a blank index point in a CUESHEET track at the given index.
+ *
+ *  A blank index point is one in which all field values are zero.
+ *
+ * \param object       A pointer to an existing CUESHEET object.
+ * \param track_num    The index of the track to modify.  NOTE: this is not
+ *                     necessarily the same as the track's \a number field.
+ * \param index_num    The index into the track's index array at which to
+ *                     insert the index point.  NOTE: this is not necessarily
+ *                     the same as the index point's \a number field.  The
+ *                     indices at and after \a index_num move right one
+ *                     position.  To append an index point to the end, set
+ *                     \a index_num to
+ *                     \c object->data.cue_sheet.tracks[track_num].num_indices .
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ *    \code object->data.cue_sheet.num_tracks > track_num \endcode
+ *    \code object->data.cue_sheet.tracks[track_num].num_indices >= index_num \endcode
+ * \retval FLAC__bool
+ *    \c false if realloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t index_num);
+
+/** Delete an index point in a CUESHEET track at the given index.
+ *
+ * \param object       A pointer to an existing CUESHEET object.
+ * \param track_num    The index into the track array of the track to
+ *                     modify.  NOTE: this is not necessarily the same
+ *                     as the track's \a number field.
+ * \param index_num    The index into the track's index array of the index
+ *                     to delete.  NOTE: this is not necessarily the same
+ *                     as the index's \a number field.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ *    \code object->data.cue_sheet.num_tracks > track_num \endcode
+ *    \code object->data.cue_sheet.tracks[track_num].num_indices > index_num \endcode
+ * \retval FLAC__bool
+ *    \c false if realloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t index_num);
+
+/** Resize the track array.
+ *
+ *  If the size shrinks, elements will truncated; if it grows, new blank
+ *  tracks will be added to the end.  If this function returns false, the
+ *  object is left untouched.
+ *
+ * \param object            A pointer to an existing CUESHEET object.
+ * \param new_num_tracks    The desired length of the array; may be \c 0.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ *    \code (object->data.cue_sheet.tracks == NULL && object->data.cue_sheet.num_tracks == 0) ||
+ * (object->data.cue_sheet.tracks != NULL && object->data.cue_sheet.num_tracks > 0) \endcode
+ * \retval FLAC__bool
+ *    \c false if memory allocation error, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, uint32_t new_num_tracks);
+
+/** Sets a track in a CUESHEET block.
+ *
+ *  If \a copy is \c true, a copy of the track is stored; otherwise, the object
+ *  takes ownership of the \a track pointer.
+ *
+ * \param object       A pointer to an existing CUESHEET object.
+ * \param track_num    Index into track array to set.  NOTE: this is not
+ *                     necessarily the same as the track's \a number field.
+ * \param track        The track to set the track to.  You may safely pass in
+ *                     a const pointer if \a copy is \c true.
+ * \param copy         See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ *    \code track_num < object->data.cue_sheet.num_tracks \endcode
+ *    \code (track->indices != NULL && track->num_indices > 0) ||
+ * (track->indices == NULL && track->num_indices == 0) \endcode
+ * \retval FLAC__bool
+ *    \c false if \a copy is \c true and malloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_set_track(FLAC__StreamMetadata *object, uint32_t track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy);
+
+/** Insert a track in a CUESHEET block at the given index.
+ *
+ *  If \a copy is \c true, a copy of the track is stored; otherwise, the object
+ *  takes ownership of the \a track pointer.
+ *
+ * \param object       A pointer to an existing CUESHEET object.
+ * \param track_num    The index at which to insert the track.  NOTE: this
+ *                     is not necessarily the same as the track's \a number
+ *                     field.  The tracks at and after \a track_num move right
+ *                     one position.  To append a track to the end, set
+ *                     \a track_num to \c object->data.cue_sheet.num_tracks .
+ * \param track        The track to insert.  You may safely pass in a const
+ *                     pointer if \a copy is \c true.
+ * \param copy         See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ *    \code object->data.cue_sheet.num_tracks >= track_num \endcode
+ * \retval FLAC__bool
+ *    \c false if \a copy is \c true and malloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_track(FLAC__StreamMetadata *object, uint32_t track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy);
+
+/** Insert a blank track in a CUESHEET block at the given index.
+ *
+ *  A blank track is one in which all field values are zero.
+ *
+ * \param object       A pointer to an existing CUESHEET object.
+ * \param track_num    The index at which to insert the track.  NOTE: this
+ *                     is not necessarily the same as the track's \a number
+ *                     field.  The tracks at and after \a track_num move right
+ *                     one position.  To append a track to the end, set
+ *                     \a track_num to \c object->data.cue_sheet.num_tracks .
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ *    \code object->data.cue_sheet.num_tracks >= track_num \endcode
+ * \retval FLAC__bool
+ *    \c false if \a copy is \c true and malloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, uint32_t track_num);
+
+/** Delete a track in a CUESHEET block at the given index.
+ *
+ * \param object       A pointer to an existing CUESHEET object.
+ * \param track_num    The index into the track array of the track to
+ *                     delete.  NOTE: this is not necessarily the same
+ *                     as the track's \a number field.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ *    \code object->data.cue_sheet.num_tracks > track_num \endcode
+ * \retval FLAC__bool
+ *    \c false if realloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, uint32_t track_num);
+
+/** Check a cue sheet to see if it conforms to the FLAC specification.
+ *  See the format specification for limits on the contents of the
+ *  cue sheet.
+ *
+ * \param object     A pointer to an existing CUESHEET object.
+ * \param check_cd_da_subset  If \c true, check CUESHEET against more
+ *                   stringent requirements for a CD-DA (audio) disc.
+ * \param violation  Address of a pointer to a string.  If there is a
+ *                   violation, a pointer to a string explanation of the
+ *                   violation will be returned here. \a violation may be
+ *                   \c NULL if you don't need the returned string.  Do not
+ *                   free the returned string; it will always point to static
+ *                   data.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ * \retval FLAC__bool
+ *    \c false if cue sheet is illegal, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation);
+
+/** Calculate and return the CDDB/freedb ID for a cue sheet.  The function
+ *  assumes the cue sheet corresponds to a CD; the result is undefined
+ *  if the cuesheet's is_cd bit is not set.
+ *
+ * \param object     A pointer to an existing CUESHEET object.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_CUESHEET \endcode
+ * \retval FLAC__uint32
+ *    The unsigned integer representation of the CDDB/freedb ID
+ */
+FLAC_API FLAC__uint32 FLAC__metadata_object_cuesheet_calculate_cddb_id(const FLAC__StreamMetadata *object);
+
+/** Sets the MIME type of a PICTURE block.
+ *
+ *  If \a copy is \c true, a copy of the string is stored; otherwise, the object
+ *  takes ownership of the pointer.  The existing string will be freed if this
+ *  function is successful, otherwise the original string will remain if \a copy
+ *  is \c true and malloc() fails.
+ *
+ * \note It is safe to pass a const pointer to \a mime_type if \a copy is \c true.
+ *
+ * \param object      A pointer to an existing PICTURE object.
+ * \param mime_type   A pointer to the MIME type string.  The string must be
+ *                    ASCII characters 0x20-0x7e, NUL-terminated.  No validation
+ *                    is done.
+ * \param copy        See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
+ *    \code (mime_type != NULL) \endcode
+ * \retval FLAC__bool
+ *    \c false if \a copy is \c true and malloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_picture_set_mime_type(FLAC__StreamMetadata *object, char *mime_type, FLAC__bool copy);
+
+/** Sets the description of a PICTURE block.
+ *
+ *  If \a copy is \c true, a copy of the string is stored; otherwise, the object
+ *  takes ownership of the pointer.  The existing string will be freed if this
+ *  function is successful, otherwise the original string will remain if \a copy
+ *  is \c true and malloc() fails.
+ *
+ * \note It is safe to pass a const pointer to \a description if \a copy is \c true.
+ *
+ * \param object      A pointer to an existing PICTURE object.
+ * \param description A pointer to the description string.  The string must be
+ *                    valid UTF-8, NUL-terminated.  No validation is done.
+ * \param copy        See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
+ *    \code (description != NULL) \endcode
+ * \retval FLAC__bool
+ *    \c false if \a copy is \c true and malloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_picture_set_description(FLAC__StreamMetadata *object, FLAC__byte *description, FLAC__bool copy);
+
+/** Sets the picture data of a PICTURE block.
+ *
+ *  If \a copy is \c true, a copy of the data is stored; otherwise, the object
+ *  takes ownership of the pointer.  Also sets the \a data_length field of the
+ *  metadata object to what is passed in as the \a length parameter.  The
+ *  existing data will be freed if this function is successful, otherwise the
+ *  original data and data_length will remain if \a copy is \c true and
+ *  malloc() fails.
+ *
+ * \note It is safe to pass a const pointer to \a data if \a copy is \c true.
+ *
+ * \param object  A pointer to an existing PICTURE object.
+ * \param data    A pointer to the data to set.
+ * \param length  The length of \a data in bytes.
+ * \param copy    See above.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
+ *    \code (data != NULL && length > 0) ||
+ * (data == NULL && length == 0 && copy == false) \endcode
+ * \retval FLAC__bool
+ *    \c false if \a copy is \c true and malloc() fails, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_picture_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, FLAC__uint32 length, FLAC__bool copy);
+
+/** Check a PICTURE block to see if it conforms to the FLAC specification.
+ *  See the format specification for limits on the contents of the
+ *  PICTURE block.
+ *
+ * \param object     A pointer to existing PICTURE block to be checked.
+ * \param violation  Address of a pointer to a string.  If there is a
+ *                   violation, a pointer to a string explanation of the
+ *                   violation will be returned here. \a violation may be
+ *                   \c NULL if you don't need the returned string.  Do not
+ *                   free the returned string; it will always point to static
+ *                   data.
+ * \assert
+ *    \code object != NULL \endcode
+ *    \code object->type == FLAC__METADATA_TYPE_PICTURE \endcode
+ * \retval FLAC__bool
+ *    \c false if PICTURE block is illegal, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__metadata_object_picture_is_legal(const FLAC__StreamMetadata *object, const char **violation);
+
+/* \} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/ordinals.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/ordinals.h
new file mode 100644
index 00000000..77757d66
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/ordinals.h
@@ -0,0 +1,85 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__ORDINALS_H
+#define FLAC__ORDINALS_H
+
+#if defined(_MSC_VER) && _MSC_VER < 1600
+
+/* Microsoft Visual Studio earlier than the 2010 version did not provide
+ * the 1999 ISO C Standard header file <stdint.h>.
+ */
+
+typedef signed __int8 FLAC__int8;
+typedef signed __int16 FLAC__int16;
+typedef signed __int32 FLAC__int32;
+typedef signed __int64 FLAC__int64;
+typedef unsigned __int8 FLAC__uint8;
+typedef unsigned __int16 FLAC__uint16;
+typedef unsigned __int32 FLAC__uint32;
+typedef unsigned __int64 FLAC__uint64;
+
+#else
+
+/* For MSVC 2010 and everything else which provides <stdint.h>. */
+
+#include <stdint.h>
+
+typedef int8_t FLAC__int8;
+typedef uint8_t FLAC__uint8;
+
+typedef int16_t FLAC__int16;
+typedef int32_t FLAC__int32;
+typedef int64_t FLAC__int64;
+typedef uint16_t FLAC__uint16;
+typedef uint32_t FLAC__uint32;
+typedef uint64_t FLAC__uint64;
+
+#endif
+
+typedef int FLAC__bool;
+
+typedef FLAC__uint8 FLAC__byte;
+
+
+#ifdef true
+#undef true
+#endif
+#ifdef false
+#undef false
+#endif
+#ifndef __cplusplus
+#define true 1
+#define false 0
+#endif
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/stream_decoder.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/stream_decoder.h
new file mode 100644
index 00000000..2d285aec
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/stream_decoder.h
@@ -0,0 +1,1584 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__STREAM_DECODER_H
+#define FLAC__STREAM_DECODER_H
+
+#include <stdio.h> /* for FILE */
+#include "export.h"
+#include "format.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/** \file include/FLAC/stream_decoder.h
+ *
+ *  \brief
+ *  This module contains the functions which implement the stream
+ *  decoder.
+ *
+ *  See the detailed documentation in the
+ *  \link flac_stream_decoder stream decoder \endlink module.
+ */
+
+/** \defgroup flac_decoder FLAC/ \*_decoder.h: decoder interfaces
+ *  \ingroup flac
+ *
+ *  \brief
+ *  This module describes the decoder layers provided by libFLAC.
+ *
+ * The stream decoder can be used to decode complete streams either from
+ * the client via callbacks, or directly from a file, depending on how
+ * it is initialized.  When decoding via callbacks, the client provides
+ * callbacks for reading FLAC data and writing decoded samples, and
+ * handling metadata and errors.  If the client also supplies seek-related
+ * callback, the decoder function for sample-accurate seeking within the
+ * FLAC input is also available.  When decoding from a file, the client
+ * needs only supply a filename or open \c FILE* and write/metadata/error
+ * callbacks; the rest of the callbacks are supplied internally.  For more
+ * info see the \link flac_stream_decoder stream decoder \endlink module.
+ */
+
+/** \defgroup flac_stream_decoder FLAC/stream_decoder.h: stream decoder interface
+ *  \ingroup flac_decoder
+ *
+ *  \brief
+ *  This module contains the functions which implement the stream
+ *  decoder.
+ *
+ * The stream decoder can decode native FLAC, and optionally Ogg FLAC
+ * (check FLAC_API_SUPPORTS_OGG_FLAC) streams and files.
+ *
+ * The basic usage of this decoder is as follows:
+ * - The program creates an instance of a decoder using
+ *   FLAC__stream_decoder_new().
+ * - The program overrides the default settings using
+ *   FLAC__stream_decoder_set_*() functions.
+ * - The program initializes the instance to validate the settings and
+ *   prepare for decoding using
+ *   - FLAC__stream_decoder_init_stream() or FLAC__stream_decoder_init_FILE()
+ *     or FLAC__stream_decoder_init_file() for native FLAC,
+ *   - FLAC__stream_decoder_init_ogg_stream() or FLAC__stream_decoder_init_ogg_FILE()
+ *     or FLAC__stream_decoder_init_ogg_file() for Ogg FLAC
+ * - The program calls the FLAC__stream_decoder_process_*() functions
+ *   to decode data, which subsequently calls the callbacks.
+ * - The program finishes the decoding with FLAC__stream_decoder_finish(),
+ *   which flushes the input and output and resets the decoder to the
+ *   uninitialized state.
+ * - The instance may be used again or deleted with
+ *   FLAC__stream_decoder_delete().
+ *
+ * In more detail, the program will create a new instance by calling
+ * FLAC__stream_decoder_new(), then call FLAC__stream_decoder_set_*()
+ * functions to override the default decoder options, and call
+ * one of the FLAC__stream_decoder_init_*() functions.
+ *
+ * There are three initialization functions for native FLAC, one for
+ * setting up the decoder to decode FLAC data from the client via
+ * callbacks, and two for decoding directly from a FLAC file.
+ *
+ * For decoding via callbacks, use FLAC__stream_decoder_init_stream().
+ * You must also supply several callbacks for handling I/O.  Some (like
+ * seeking) are optional, depending on the capabilities of the input.
+ *
+ * For decoding directly from a file, use FLAC__stream_decoder_init_FILE()
+ * or FLAC__stream_decoder_init_file().  Then you must only supply an open
+ * \c FILE* or filename and fewer callbacks; the decoder will handle
+ * the other callbacks internally.
+ *
+ * There are three similarly-named init functions for decoding from Ogg
+ * FLAC streams.  Check \c FLAC_API_SUPPORTS_OGG_FLAC to find out if the
+ * library has been built with Ogg support.
+ *
+ * Once the decoder is initialized, your program will call one of several
+ * functions to start the decoding process:
+ *
+ * - FLAC__stream_decoder_process_single() - Tells the decoder to process at
+ *   most one metadata block or audio frame and return, calling either the
+ *   metadata callback or write callback, respectively, once.  If the decoder
+ *   loses sync it will return with only the error callback being called.
+ * - FLAC__stream_decoder_process_until_end_of_metadata() - Tells the decoder
+ *   to process the stream from the current location and stop upon reaching
+ *   the first audio frame.  The client will get one metadata, write, or error
+ *   callback per metadata block, audio frame, or sync error, respectively.
+ * - FLAC__stream_decoder_process_until_end_of_stream() - Tells the decoder
+ *   to process the stream from the current location until the read callback
+ *   returns FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM or
+ *   FLAC__STREAM_DECODER_READ_STATUS_ABORT.  The client will get one metadata,
+ *   write, or error callback per metadata block, audio frame, or sync error,
+ *   respectively.
+ *
+ * When the decoder has finished decoding (normally or through an abort),
+ * the instance is finished by calling FLAC__stream_decoder_finish(), which
+ * ensures the decoder is in the correct state and frees memory.  Then the
+ * instance may be deleted with FLAC__stream_decoder_delete() or initialized
+ * again to decode another stream.
+ *
+ * Seeking is exposed through the FLAC__stream_decoder_seek_absolute() method.
+ * At any point after the stream decoder has been initialized, the client can
+ * call this function to seek to an exact sample within the stream.
+ * Subsequently, the first time the write callback is called it will be
+ * passed a (possibly partial) block starting at that sample.
+ *
+ * If the client cannot seek via the callback interface provided, but still
+ * has another way of seeking, it can flush the decoder using
+ * FLAC__stream_decoder_flush() and start feeding data from the new position
+ * through the read callback.
+ *
+ * The stream decoder also provides MD5 signature checking.  If this is
+ * turned on before initialization, FLAC__stream_decoder_finish() will
+ * report when the decoded MD5 signature does not match the one stored
+ * in the STREAMINFO block.  MD5 checking is automatically turned off
+ * (until the next FLAC__stream_decoder_reset()) if there is no signature
+ * in the STREAMINFO block or when a seek is attempted.
+ *
+ * The FLAC__stream_decoder_set_metadata_*() functions deserve special
+ * attention.  By default, the decoder only calls the metadata_callback for
+ * the STREAMINFO block.  These functions allow you to tell the decoder
+ * explicitly which blocks to parse and return via the metadata_callback
+ * and/or which to skip.  Use a FLAC__stream_decoder_set_metadata_respond_all(),
+ * FLAC__stream_decoder_set_metadata_ignore() ... or FLAC__stream_decoder_set_metadata_ignore_all(),
+ * FLAC__stream_decoder_set_metadata_respond() ... sequence to exactly specify
+ * which blocks to return.  Remember that metadata blocks can potentially
+ * be big (for example, cover art) so filtering out the ones you don't
+ * use can reduce the memory requirements of the decoder.  Also note the
+ * special forms FLAC__stream_decoder_set_metadata_respond_application(id)
+ * and FLAC__stream_decoder_set_metadata_ignore_application(id) for
+ * filtering APPLICATION blocks based on the application ID.
+ *
+ * STREAMINFO and SEEKTABLE blocks are always parsed and used internally, but
+ * they still can legally be filtered from the metadata_callback.
+ *
+ * \note
+ * The "set" functions may only be called when the decoder is in the
+ * state FLAC__STREAM_DECODER_UNINITIALIZED, i.e. after
+ * FLAC__stream_decoder_new() or FLAC__stream_decoder_finish(), but
+ * before FLAC__stream_decoder_init_*().  If this is the case they will
+ * return \c true, otherwise \c false.
+ *
+ * \note
+ * FLAC__stream_decoder_finish() resets all settings to the constructor
+ * defaults, including the callbacks.
+ *
+ * \{
+ */
+
+
+/** State values for a FLAC__StreamDecoder
+ *
+ * The decoder's state can be obtained by calling FLAC__stream_decoder_get_state().
+ */
+typedef enum {
+
+	FLAC__STREAM_DECODER_SEARCH_FOR_METADATA = 0,
+	/**< The decoder is ready to search for metadata. */
+
+	FLAC__STREAM_DECODER_READ_METADATA,
+	/**< The decoder is ready to or is in the process of reading metadata. */
+
+	FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC,
+	/**< The decoder is ready to or is in the process of searching for the
+	 * frame sync code.
+	 */
+
+	FLAC__STREAM_DECODER_READ_FRAME,
+	/**< The decoder is ready to or is in the process of reading a frame. */
+
+	FLAC__STREAM_DECODER_END_OF_STREAM,
+	/**< The decoder has reached the end of the stream. */
+
+	FLAC__STREAM_DECODER_OGG_ERROR,
+	/**< An error occurred in the underlying Ogg layer.  */
+
+	FLAC__STREAM_DECODER_SEEK_ERROR,
+	/**< An error occurred while seeking.  The decoder must be flushed
+	 * with FLAC__stream_decoder_flush() or reset with
+	 * FLAC__stream_decoder_reset() before decoding can continue.
+	 */
+
+	FLAC__STREAM_DECODER_ABORTED,
+	/**< The decoder was aborted by the read or write callback. */
+
+	FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR,
+	/**< An error occurred allocating memory.  The decoder is in an invalid
+	 * state and can no longer be used.
+	 */
+
+	FLAC__STREAM_DECODER_UNINITIALIZED
+	/**< The decoder is in the uninitialized state; one of the
+	 * FLAC__stream_decoder_init_*() functions must be called before samples
+	 * can be processed.
+	 */
+
+} FLAC__StreamDecoderState;
+
+/** Maps a FLAC__StreamDecoderState to a C string.
+ *
+ *  Using a FLAC__StreamDecoderState as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamDecoderStateString[];
+
+
+/** Possible return values for the FLAC__stream_decoder_init_*() functions.
+ */
+typedef enum {
+
+	FLAC__STREAM_DECODER_INIT_STATUS_OK = 0,
+	/**< Initialization was successful. */
+
+	FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER,
+	/**< The library was not compiled with support for the given container
+	 * format.
+	 */
+
+	FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS,
+	/**< A required callback was not supplied. */
+
+	FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR,
+	/**< An error occurred allocating memory. */
+
+	FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE,
+	/**< fopen() failed in FLAC__stream_decoder_init_file() or
+	 * FLAC__stream_decoder_init_ogg_file(). */
+
+	FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED
+	/**< FLAC__stream_decoder_init_*() was called when the decoder was
+	 * already initialized, usually because
+	 * FLAC__stream_decoder_finish() was not called.
+	 */
+
+} FLAC__StreamDecoderInitStatus;
+
+/** Maps a FLAC__StreamDecoderInitStatus to a C string.
+ *
+ *  Using a FLAC__StreamDecoderInitStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamDecoderInitStatusString[];
+
+
+/** Return values for the FLAC__StreamDecoder read callback.
+ */
+typedef enum {
+
+	FLAC__STREAM_DECODER_READ_STATUS_CONTINUE,
+	/**< The read was OK and decoding can continue. */
+
+	FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM,
+	/**< The read was attempted while at the end of the stream.  Note that
+	 * the client must only return this value when the read callback was
+	 * called when already at the end of the stream.  Otherwise, if the read
+	 * itself moves to the end of the stream, the client should still return
+	 * the data and \c FLAC__STREAM_DECODER_READ_STATUS_CONTINUE, and then on
+	 * the next read callback it should return
+	 * \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM with a byte count
+	 * of \c 0.
+	 */
+
+	FLAC__STREAM_DECODER_READ_STATUS_ABORT
+	/**< An unrecoverable error occurred.  The decoder will return from the process call. */
+
+} FLAC__StreamDecoderReadStatus;
+
+/** Maps a FLAC__StreamDecoderReadStatus to a C string.
+ *
+ *  Using a FLAC__StreamDecoderReadStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamDecoderReadStatusString[];
+
+
+/** Return values for the FLAC__StreamDecoder seek callback.
+ */
+typedef enum {
+
+	FLAC__STREAM_DECODER_SEEK_STATUS_OK,
+	/**< The seek was OK and decoding can continue. */
+
+	FLAC__STREAM_DECODER_SEEK_STATUS_ERROR,
+	/**< An unrecoverable error occurred.  The decoder will return from the process call. */
+
+	FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
+	/**< Client does not support seeking. */
+
+} FLAC__StreamDecoderSeekStatus;
+
+/** Maps a FLAC__StreamDecoderSeekStatus to a C string.
+ *
+ *  Using a FLAC__StreamDecoderSeekStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamDecoderSeekStatusString[];
+
+
+/** Return values for the FLAC__StreamDecoder tell callback.
+ */
+typedef enum {
+
+	FLAC__STREAM_DECODER_TELL_STATUS_OK,
+	/**< The tell was OK and decoding can continue. */
+
+	FLAC__STREAM_DECODER_TELL_STATUS_ERROR,
+	/**< An unrecoverable error occurred.  The decoder will return from the process call. */
+
+	FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
+	/**< Client does not support telling the position. */
+
+} FLAC__StreamDecoderTellStatus;
+
+/** Maps a FLAC__StreamDecoderTellStatus to a C string.
+ *
+ *  Using a FLAC__StreamDecoderTellStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamDecoderTellStatusString[];
+
+
+/** Return values for the FLAC__StreamDecoder length callback.
+ */
+typedef enum {
+
+	FLAC__STREAM_DECODER_LENGTH_STATUS_OK,
+	/**< The length call was OK and decoding can continue. */
+
+	FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR,
+	/**< An unrecoverable error occurred.  The decoder will return from the process call. */
+
+	FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
+	/**< Client does not support reporting the length. */
+
+} FLAC__StreamDecoderLengthStatus;
+
+/** Maps a FLAC__StreamDecoderLengthStatus to a C string.
+ *
+ *  Using a FLAC__StreamDecoderLengthStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamDecoderLengthStatusString[];
+
+
+/** Return values for the FLAC__StreamDecoder write callback.
+ */
+typedef enum {
+
+	FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE,
+	/**< The write was OK and decoding can continue. */
+
+	FLAC__STREAM_DECODER_WRITE_STATUS_ABORT
+	/**< An unrecoverable error occurred.  The decoder will return from the process call. */
+
+} FLAC__StreamDecoderWriteStatus;
+
+/** Maps a FLAC__StreamDecoderWriteStatus to a C string.
+ *
+ *  Using a FLAC__StreamDecoderWriteStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamDecoderWriteStatusString[];
+
+
+/** Possible values passed back to the FLAC__StreamDecoder error callback.
+ *  \c FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC is the generic catch-
+ *  all.  The rest could be caused by bad sync (false synchronization on
+ *  data that is not the start of a frame) or corrupted data.  The error
+ *  itself is the decoder's best guess at what happened assuming a correct
+ *  sync.  For example \c FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER
+ *  could be caused by a correct sync on the start of a frame, but some
+ *  data in the frame header was corrupted.  Or it could be the result of
+ *  syncing on a point the stream that looked like the starting of a frame
+ *  but was not.  \c FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM
+ *  could be because the decoder encountered a valid frame made by a future
+ *  version of the encoder which it cannot parse, or because of a false
+ *  sync making it appear as though an encountered frame was generated by
+ *  a future encoder. \c FLAC__STREAM_DECODER_ERROR_STATUS_BAD_METADATA is
+ *  caused by finding data that doesn't fit a metadata block (too large
+ *  or too small) or finding inconsistencies in the metadata, for example
+ *  a PICTURE block with an image that exceeds the size of the metadata
+ *  block.
+ */
+typedef enum {
+
+	FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC,
+	/**< An error in the stream caused the decoder to lose synchronization. */
+
+	FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER,
+	/**< The decoder encountered a corrupted frame header. */
+
+	FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH,
+	/**< The frame's data did not match the CRC in the footer. */
+
+	FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM,
+	/**< The decoder encountered reserved fields in use in the stream. */
+
+	FLAC__STREAM_DECODER_ERROR_STATUS_BAD_METADATA
+	/**< The decoder encountered a corrupted metadata block. */
+
+} FLAC__StreamDecoderErrorStatus;
+
+/** Maps a FLAC__StreamDecoderErrorStatus to a C string.
+ *
+ *  Using a FLAC__StreamDecoderErrorStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamDecoderErrorStatusString[];
+
+
+/***********************************************************************
+ *
+ * class FLAC__StreamDecoder
+ *
+ ***********************************************************************/
+
+struct FLAC__StreamDecoderProtected;
+struct FLAC__StreamDecoderPrivate;
+/** The opaque structure definition for the stream decoder type.
+ *  See the \link flac_stream_decoder stream decoder module \endlink
+ *  for a detailed description.
+ */
+typedef struct {
+	struct FLAC__StreamDecoderProtected *protected_; /* avoid the C++ keyword 'protected' */
+	struct FLAC__StreamDecoderPrivate *private_; /* avoid the C++ keyword 'private' */
+} FLAC__StreamDecoder;
+
+/** Signature for the read callback.
+ *
+ *  A function pointer matching this signature must be passed to
+ *  FLAC__stream_decoder_init*_stream(). The supplied function will be
+ *  called when the decoder needs more input data.  The address of the
+ *  buffer to be filled is supplied, along with the number of bytes the
+ *  buffer can hold.  The callback may choose to supply less data and
+ *  modify the byte count but must be careful not to overflow the buffer.
+ *  The callback then returns a status code chosen from
+ *  FLAC__StreamDecoderReadStatus.
+ *
+ * Here is an example of a read callback for stdio streams:
+ * \code
+ * FLAC__StreamDecoderReadStatus read_cb(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
+ * {
+ *   FILE *file = ((MyClientData*)client_data)->file;
+ *   if(*bytes > 0) {
+ *     *bytes = fread(buffer, sizeof(FLAC__byte), *bytes, file);
+ *     if(ferror(file))
+ *       return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
+ *     else if(*bytes == 0)
+ *       return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
+ *     else
+ *       return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
+ *   }
+ *   else
+ *     return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
+ * }
+ * \endcode
+ *
+ * \note In general, FLAC__StreamDecoder functions which change the
+ * state should not be called on the \a decoder while in the callback.
+ *
+ * \param  decoder  The decoder instance calling the callback.
+ * \param  buffer   A pointer to a location for the callee to store
+ *                  data to be decoded.
+ * \param  bytes    A pointer to the size of the buffer.  On entry
+ *                  to the callback, it contains the maximum number
+ *                  of bytes that may be stored in \a buffer.  The
+ *                  callee must set it to the actual number of bytes
+ *                  stored (0 in case of error or end-of-stream) before
+ *                  returning.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_decoder_init_*().
+ * \retval FLAC__StreamDecoderReadStatus
+ *    The callee's return status.  Note that the callback should return
+ *    \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM if and only if
+ *    zero bytes were read and there is no more data to be read.
+ */
+typedef FLAC__StreamDecoderReadStatus (*FLAC__StreamDecoderReadCallback)(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
+
+/** Signature for the seek callback.
+ *
+ *  A function pointer matching this signature may be passed to
+ *  FLAC__stream_decoder_init*_stream().  The supplied function will be
+ *  called when the decoder needs to seek the input stream.  The decoder
+ *  will pass the absolute byte offset to seek to, 0 meaning the
+ *  beginning of the stream.
+ *
+ * Here is an example of a seek callback for stdio streams:
+ * \code
+ * FLAC__StreamDecoderSeekStatus seek_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
+ * {
+ *   FILE *file = ((MyClientData*)client_data)->file;
+ *   if(file == stdin)
+ *     return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
+ *   else if(fseeko(file, (off_t)absolute_byte_offset, SEEK_SET) < 0)
+ *     return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
+ *   else
+ *     return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
+ * }
+ * \endcode
+ *
+ * \note In general, FLAC__StreamDecoder functions which change the
+ * state should not be called on the \a decoder while in the callback.
+ *
+ * \param  decoder  The decoder instance calling the callback.
+ * \param  absolute_byte_offset  The offset from the beginning of the stream
+ *                               to seek to.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_decoder_init_*().
+ * \retval FLAC__StreamDecoderSeekStatus
+ *    The callee's return status.
+ */
+typedef FLAC__StreamDecoderSeekStatus (*FLAC__StreamDecoderSeekCallback)(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
+
+/** Signature for the tell callback.
+ *
+ *  A function pointer matching this signature may be passed to
+ *  FLAC__stream_decoder_init*_stream().  The supplied function will be
+ *  called when the decoder wants to know the current position of the
+ *  stream.  The callback should return the byte offset from the
+ *  beginning of the stream.
+ *
+ * Here is an example of a tell callback for stdio streams:
+ * \code
+ * FLAC__StreamDecoderTellStatus tell_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
+ * {
+ *   FILE *file = ((MyClientData*)client_data)->file;
+ *   off_t pos;
+ *   if(file == stdin)
+ *     return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
+ *   else if((pos = ftello(file)) < 0)
+ *     return FLAC__STREAM_DECODER_TELL_STATUS_ERROR;
+ *   else {
+ *     *absolute_byte_offset = (FLAC__uint64)pos;
+ *     return FLAC__STREAM_DECODER_TELL_STATUS_OK;
+ *   }
+ * }
+ * \endcode
+ *
+ * \note In general, FLAC__StreamDecoder functions which change the
+ * state should not be called on the \a decoder while in the callback.
+ *
+ * \param  decoder  The decoder instance calling the callback.
+ * \param  absolute_byte_offset  A pointer to storage for the current offset
+ *                               from the beginning of the stream.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_decoder_init_*().
+ * \retval FLAC__StreamDecoderTellStatus
+ *    The callee's return status.
+ */
+typedef FLAC__StreamDecoderTellStatus (*FLAC__StreamDecoderTellCallback)(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
+
+/** Signature for the length callback.
+ *
+ *  A function pointer matching this signature may be passed to
+ *  FLAC__stream_decoder_init*_stream().  The supplied function will be
+ *  called when the decoder wants to know the total length of the stream
+ *  in bytes.
+ *
+ * Here is an example of a length callback for stdio streams:
+ * \code
+ * FLAC__StreamDecoderLengthStatus length_cb(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
+ * {
+ *   FILE *file = ((MyClientData*)client_data)->file;
+ *   struct stat filestats;
+ *
+ *   if(file == stdin)
+ *     return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
+ *   else if(fstat(fileno(file), &filestats) != 0)
+ *     return FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR;
+ *   else {
+ *     *stream_length = (FLAC__uint64)filestats.st_size;
+ *     return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
+ *   }
+ * }
+ * \endcode
+ *
+ * \note In general, FLAC__StreamDecoder functions which change the
+ * state should not be called on the \a decoder while in the callback.
+ *
+ * \param  decoder  The decoder instance calling the callback.
+ * \param  stream_length  A pointer to storage for the length of the stream
+ *                        in bytes.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_decoder_init_*().
+ * \retval FLAC__StreamDecoderLengthStatus
+ *    The callee's return status.
+ */
+typedef FLAC__StreamDecoderLengthStatus (*FLAC__StreamDecoderLengthCallback)(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
+
+/** Signature for the EOF callback.
+ *
+ *  A function pointer matching this signature may be passed to
+ *  FLAC__stream_decoder_init*_stream().  The supplied function will be
+ *  called when the decoder needs to know if the end of the stream has
+ *  been reached.
+ *
+ * Here is an example of a EOF callback for stdio streams:
+ * FLAC__bool eof_cb(const FLAC__StreamDecoder *decoder, void *client_data)
+ * \code
+ * {
+ *   FILE *file = ((MyClientData*)client_data)->file;
+ *   return feof(file)? true : false;
+ * }
+ * \endcode
+ *
+ * \note In general, FLAC__StreamDecoder functions which change the
+ * state should not be called on the \a decoder while in the callback.
+ *
+ * \param  decoder  The decoder instance calling the callback.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_decoder_init_*().
+ * \retval FLAC__bool
+ *    \c true if the currently at the end of the stream, else \c false.
+ */
+typedef FLAC__bool (*FLAC__StreamDecoderEofCallback)(const FLAC__StreamDecoder *decoder, void *client_data);
+
+/** Signature for the write callback.
+ *
+ *  A function pointer matching this signature must be passed to one of
+ *  the FLAC__stream_decoder_init_*() functions.
+ *  The supplied function will be called when the decoder has decoded a
+ *  single audio frame.  The decoder will pass the frame metadata as well
+ *  as an array of pointers (one for each channel) pointing to the
+ *  decoded audio.
+ *
+ * \note In general, FLAC__StreamDecoder functions which change the
+ * state should not be called on the \a decoder while in the callback.
+ *
+ * \param  decoder  The decoder instance calling the callback.
+ * \param  frame    The description of the decoded frame.  See
+ *                  FLAC__Frame.
+ * \param  buffer   An array of pointers to decoded channels of data.
+ *                  Each pointer will point to an array of signed
+ *                  samples of length \a frame->header.blocksize.
+ *                  Channels will be ordered according to the FLAC
+ *                  specification; see the documentation for the
+ *                  <A HREF="../format.html#frame_header">frame header</A>.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_decoder_init_*().
+ * \retval FLAC__StreamDecoderWriteStatus
+ *    The callee's return status.
+ */
+typedef FLAC__StreamDecoderWriteStatus (*FLAC__StreamDecoderWriteCallback)(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
+
+/** Signature for the metadata callback.
+ *
+ *  A function pointer matching this signature must be passed to one of
+ *  the FLAC__stream_decoder_init_*() functions.
+ *  The supplied function will be called when the decoder has decoded a
+ *  metadata block.  In a valid FLAC file there will always be one
+ *  \c STREAMINFO block, followed by zero or more other metadata blocks.
+ *  These will be supplied by the decoder in the same order as they
+ *  appear in the stream and always before the first audio frame (i.e.
+ *  write callback).  The metadata block that is passed in must not be
+ *  modified, and it doesn't live beyond the callback, so you should make
+ *  a copy of it with FLAC__metadata_object_clone() if you will need it
+ *  elsewhere.  Since metadata blocks can potentially be large, by
+ *  default the decoder only calls the metadata callback for the
+ *  \c STREAMINFO block; you can instruct the decoder to pass or filter
+ *  other blocks with FLAC__stream_decoder_set_metadata_*() calls.
+ *
+ * \note In general, FLAC__StreamDecoder functions which change the
+ * state should not be called on the \a decoder while in the callback.
+ *
+ * \param  decoder  The decoder instance calling the callback.
+ * \param  metadata The decoded metadata block.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_decoder_init_*().
+ */
+typedef void (*FLAC__StreamDecoderMetadataCallback)(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
+
+/** Signature for the error callback.
+ *
+ *  A function pointer matching this signature must be passed to one of
+ *  the FLAC__stream_decoder_init_*() functions.
+ *  The supplied function will be called whenever an error occurs during
+ *  decoding.
+ *
+ * \note In general, FLAC__StreamDecoder functions which change the
+ * state should not be called on the \a decoder while in the callback.
+ *
+ * \param  decoder  The decoder instance calling the callback.
+ * \param  status   The error encountered by the decoder.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_decoder_init_*().
+ */
+typedef void (*FLAC__StreamDecoderErrorCallback)(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+
+/** Create a new stream decoder instance.  The instance is created with
+ *  default settings; see the individual FLAC__stream_decoder_set_*()
+ *  functions for each setting's default.
+ *
+ * \retval FLAC__StreamDecoder*
+ *    \c NULL if there was an error allocating memory, else the new instance.
+ */
+FLAC_API FLAC__StreamDecoder *FLAC__stream_decoder_new(void);
+
+/** Free a decoder instance.  Deletes the object pointed to by \a decoder.
+ *
+ * \param decoder  A pointer to an existing decoder.
+ * \assert
+ *    \code decoder != NULL \endcode
+ */
+FLAC_API void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder);
+
+
+/***********************************************************************
+ *
+ * Public class method prototypes
+ *
+ ***********************************************************************/
+
+/** Set the serial number for the FLAC stream within the Ogg container.
+ *  The default behavior is to use the serial number of the first Ogg
+ *  page.  Setting a serial number here will explicitly specify which
+ *  stream is to be decoded.
+ *
+ * \note
+ * This does not need to be set for native FLAC decoding.
+ *
+ * \default \c use serial number of first page
+ * \param  decoder        A decoder instance to set.
+ * \param  serial_number  See above.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the decoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_set_ogg_serial_number(FLAC__StreamDecoder *decoder, long serial_number);
+
+/** Set the "MD5 signature checking" flag.  If \c true, the decoder will
+ *  compute the MD5 signature of the unencoded audio data while decoding
+ *  and compare it to the signature from the STREAMINFO block, if it
+ *  exists, during FLAC__stream_decoder_finish().
+ *
+ *  MD5 signature checking will be turned off (until the next
+ *  FLAC__stream_decoder_reset()) if there is no signature in the
+ *  STREAMINFO block or when a seek is attempted.
+ *
+ *  Clients that do not use the MD5 check should leave this off to speed
+ *  up decoding.
+ *
+ * \default \c false
+ * \param  decoder  A decoder instance to set.
+ * \param  value    Flag value (see above).
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the decoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_set_md5_checking(FLAC__StreamDecoder *decoder, FLAC__bool value);
+
+/** Direct the decoder to pass on all metadata blocks of type \a type.
+ *
+ * \default By default, only the \c STREAMINFO block is returned via the
+ *          metadata callback.
+ * \param  decoder  A decoder instance to set.
+ * \param  type     See above.
+ * \assert
+ *    \code decoder != NULL \endcode
+ *    \a type is valid
+ * \retval FLAC__bool
+ *    \c false if the decoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type);
+
+/** Direct the decoder to pass on all APPLICATION metadata blocks of the
+ *  given \a id.
+ *
+ * \default By default, only the \c STREAMINFO block is returned via the
+ *          metadata callback.
+ * \param  decoder  A decoder instance to set.
+ * \param  id       See above.
+ * \assert
+ *    \code decoder != NULL \endcode
+ *    \code id != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the decoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4]);
+
+/** Direct the decoder to pass on all metadata blocks of any type.
+ *
+ * \default By default, only the \c STREAMINFO block is returned via the
+ *          metadata callback.
+ * \param  decoder  A decoder instance to set.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the decoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder);
+
+/** Direct the decoder to filter out all metadata blocks of type \a type.
+ *
+ * \default By default, only the \c STREAMINFO block is returned via the
+ *          metadata callback.
+ * \param  decoder  A decoder instance to set.
+ * \param  type     See above.
+ * \assert
+ *    \code decoder != NULL \endcode
+ *    \a type is valid
+ * \retval FLAC__bool
+ *    \c false if the decoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore(FLAC__StreamDecoder *decoder, FLAC__MetadataType type);
+
+/** Direct the decoder to filter out all APPLICATION metadata blocks of
+ *  the given \a id.
+ *
+ * \default By default, only the \c STREAMINFO block is returned via the
+ *          metadata callback.
+ * \param  decoder  A decoder instance to set.
+ * \param  id       See above.
+ * \assert
+ *    \code decoder != NULL \endcode
+ *    \code id != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the decoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4]);
+
+/** Direct the decoder to filter out all metadata blocks of any type.
+ *
+ * \default By default, only the \c STREAMINFO block is returned via the
+ *          metadata callback.
+ * \param  decoder  A decoder instance to set.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the decoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder);
+
+/** Get the current decoder state.
+ *
+ * \param  decoder  A decoder instance to query.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__StreamDecoderState
+ *    The current decoder state.
+ */
+FLAC_API FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder);
+
+/** Get the current decoder state as a C string.
+ *
+ * \param  decoder  A decoder instance to query.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval const char *
+ *    The decoder state as a C string.  Do not modify the contents.
+ */
+FLAC_API const char *FLAC__stream_decoder_get_resolved_state_string(const FLAC__StreamDecoder *decoder);
+
+/** Get the "MD5 signature checking" flag.
+ *  This is the value of the setting, not whether or not the decoder is
+ *  currently checking the MD5 (remember, it can be turned off automatically
+ *  by a seek).  When the decoder is reset the flag will be restored to the
+ *  value returned by this function.
+ *
+ * \param  decoder  A decoder instance to query.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    See above.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_get_md5_checking(const FLAC__StreamDecoder *decoder);
+
+/** Get the total number of samples in the stream being decoded.
+ *  Will only be valid after decoding has started and will contain the
+ *  value from the \c STREAMINFO block.  A value of \c 0 means "unknown".
+ *
+ * \param  decoder  A decoder instance to query.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval uint32_t
+ *    See above.
+ */
+FLAC_API FLAC__uint64 FLAC__stream_decoder_get_total_samples(const FLAC__StreamDecoder *decoder);
+
+/** Get the current number of channels in the stream being decoded.
+ *  Will only be valid after decoding has started and will contain the
+ *  value from the most recently decoded frame header.
+ *
+ * \param  decoder  A decoder instance to query.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval uint32_t
+ *    See above.
+ */
+FLAC_API uint32_t FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder);
+
+/** Get the current channel assignment in the stream being decoded.
+ *  Will only be valid after decoding has started and will contain the
+ *  value from the most recently decoded frame header.
+ *
+ * \param  decoder  A decoder instance to query.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__ChannelAssignment
+ *    See above.
+ */
+FLAC_API FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder);
+
+/** Get the current sample resolution in the stream being decoded.
+ *  Will only be valid after decoding has started and will contain the
+ *  value from the most recently decoded frame header.
+ *
+ * \param  decoder  A decoder instance to query.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval uint32_t
+ *    See above.
+ */
+FLAC_API uint32_t FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder);
+
+/** Get the current sample rate in Hz of the stream being decoded.
+ *  Will only be valid after decoding has started and will contain the
+ *  value from the most recently decoded frame header.
+ *
+ * \param  decoder  A decoder instance to query.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval uint32_t
+ *    See above.
+ */
+FLAC_API uint32_t FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder);
+
+/** Get the current blocksize of the stream being decoded.
+ *  Will only be valid after decoding has started and will contain the
+ *  value from the most recently decoded frame header.
+ *
+ * \param  decoder  A decoder instance to query.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval uint32_t
+ *    See above.
+ */
+FLAC_API uint32_t FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder);
+
+/** Returns the decoder's current read position within the stream.
+ *  The position is the byte offset from the start of the stream.
+ *  Bytes before this position have been fully decoded.  Note that
+ *  there may still be undecoded bytes in the decoder's read FIFO.
+ *  The returned position is correct even after a seek.
+ *
+ *  \warning This function currently only works for native FLAC,
+ *           not Ogg FLAC streams.
+ *
+ * \param  decoder   A decoder instance to query.
+ * \param  position  Address at which to return the desired position.
+ * \assert
+ *    \code decoder != NULL \endcode
+ *    \code position != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if successful, \c false if the stream is not native FLAC,
+ *    or there was an error from the 'tell' callback or it returned
+ *    \c FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_get_decode_position(const FLAC__StreamDecoder *decoder, FLAC__uint64 *position);
+
+/** Return client_data from decoder.
+ *  The data pointed to by the pointer should not be modified.
+ *
+ * \param  decoder  A decoder instance.
+ * \retval const void *
+ *    The callee's client data set through FLAC__stream_decoder_init_*().
+ *    Do not modify the contents.
+ */
+FLAC_API const void *FLAC__stream_decoder_get_client_data(FLAC__StreamDecoder *decoder);
+
+/** Initialize the decoder instance to decode native FLAC streams.
+ *
+ *  This flavor of initialization sets up the decoder to decode from a
+ *  native FLAC stream. I/O is performed via callbacks to the client.
+ *  For decoding from a plain file via filename or open FILE*,
+ *  FLAC__stream_decoder_init_file() and FLAC__stream_decoder_init_FILE()
+ *  provide a simpler interface.
+ *
+ *  This function should be called after FLAC__stream_decoder_new() and
+ *  FLAC__stream_decoder_set_*() but before any of the
+ *  FLAC__stream_decoder_process_*() functions.  Will set and return the
+ *  decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
+ *  if initialization succeeded.
+ *
+ * \param  decoder            An uninitialized decoder instance.
+ * \param  read_callback      See FLAC__StreamDecoderReadCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  seek_callback      See FLAC__StreamDecoderSeekCallback.  This
+ *                            pointer may be \c NULL if seeking is not
+ *                            supported.  If \a seek_callback is not \c NULL then a
+ *                            \a tell_callback, \a length_callback, and \a eof_callback must also be supplied.
+ *                            Alternatively, a dummy seek callback that just
+ *                            returns \c FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the decoder.
+ * \param  tell_callback      See FLAC__StreamDecoderTellCallback.  This
+ *                            pointer may be \c NULL if not supported by the client.  If
+ *                            \a seek_callback is not \c NULL then a
+ *                            \a tell_callback must also be supplied.
+ *                            Alternatively, a dummy tell callback that just
+ *                            returns \c FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the decoder.
+ * \param  length_callback    See FLAC__StreamDecoderLengthCallback.  This
+ *                            pointer may be \c NULL if not supported by the client.  If
+ *                            \a seek_callback is not \c NULL then a
+ *                            \a length_callback must also be supplied.
+ *                            Alternatively, a dummy length callback that just
+ *                            returns \c FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the decoder.
+ * \param  eof_callback       See FLAC__StreamDecoderEofCallback.  This
+ *                            pointer may be \c NULL if not supported by the client.  If
+ *                            \a seek_callback is not \c NULL then a
+ *                            \a eof_callback must also be supplied.
+ *                            Alternatively, a dummy length callback that just
+ *                            returns \c false
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the decoder.
+ * \param  write_callback     See FLAC__StreamDecoderWriteCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  metadata_callback  See FLAC__StreamDecoderMetadataCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.
+ * \param  error_callback     See FLAC__StreamDecoderErrorCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__StreamDecoderInitStatus
+ *    \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamDecoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_stream(
+	FLAC__StreamDecoder *decoder,
+	FLAC__StreamDecoderReadCallback read_callback,
+	FLAC__StreamDecoderSeekCallback seek_callback,
+	FLAC__StreamDecoderTellCallback tell_callback,
+	FLAC__StreamDecoderLengthCallback length_callback,
+	FLAC__StreamDecoderEofCallback eof_callback,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+);
+
+/** Initialize the decoder instance to decode Ogg FLAC streams.
+ *
+ *  This flavor of initialization sets up the decoder to decode from a
+ *  FLAC stream in an Ogg container. I/O is performed via callbacks to the
+ *  client.  For decoding from a plain file via filename or open FILE*,
+ *  FLAC__stream_decoder_init_ogg_file() and FLAC__stream_decoder_init_ogg_FILE()
+ *  provide a simpler interface.
+ *
+ *  This function should be called after FLAC__stream_decoder_new() and
+ *  FLAC__stream_decoder_set_*() but before any of the
+ *  FLAC__stream_decoder_process_*() functions.  Will set and return the
+ *  decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
+ *  if initialization succeeded.
+ *
+ *  \note Support for Ogg FLAC in the library is optional.  If this
+ *  library has been built without support for Ogg FLAC, this function
+ *  will return \c FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER.
+ *
+ * \param  decoder            An uninitialized decoder instance.
+ * \param  read_callback      See FLAC__StreamDecoderReadCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  seek_callback      See FLAC__StreamDecoderSeekCallback.  This
+ *                            pointer may be \c NULL if seeking is not
+ *                            supported.  If \a seek_callback is not \c NULL then a
+ *                            \a tell_callback, \a length_callback, and \a eof_callback must also be supplied.
+ *                            Alternatively, a dummy seek callback that just
+ *                            returns \c FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the decoder.
+ * \param  tell_callback      See FLAC__StreamDecoderTellCallback.  This
+ *                            pointer may be \c NULL if not supported by the client.  If
+ *                            \a seek_callback is not \c NULL then a
+ *                            \a tell_callback must also be supplied.
+ *                            Alternatively, a dummy tell callback that just
+ *                            returns \c FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the decoder.
+ * \param  length_callback    See FLAC__StreamDecoderLengthCallback.  This
+ *                            pointer may be \c NULL if not supported by the client.  If
+ *                            \a seek_callback is not \c NULL then a
+ *                            \a length_callback must also be supplied.
+ *                            Alternatively, a dummy length callback that just
+ *                            returns \c FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the decoder.
+ * \param  eof_callback       See FLAC__StreamDecoderEofCallback.  This
+ *                            pointer may be \c NULL if not supported by the client.  If
+ *                            \a seek_callback is not \c NULL then a
+ *                            \a eof_callback must also be supplied.
+ *                            Alternatively, a dummy length callback that just
+ *                            returns \c false
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the decoder.
+ * \param  write_callback     See FLAC__StreamDecoderWriteCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  metadata_callback  See FLAC__StreamDecoderMetadataCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.
+ * \param  error_callback     See FLAC__StreamDecoderErrorCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__StreamDecoderInitStatus
+ *    \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamDecoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_stream(
+	FLAC__StreamDecoder *decoder,
+	FLAC__StreamDecoderReadCallback read_callback,
+	FLAC__StreamDecoderSeekCallback seek_callback,
+	FLAC__StreamDecoderTellCallback tell_callback,
+	FLAC__StreamDecoderLengthCallback length_callback,
+	FLAC__StreamDecoderEofCallback eof_callback,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+);
+
+/** Initialize the decoder instance to decode native FLAC files.
+ *
+ *  This flavor of initialization sets up the decoder to decode from a
+ *  plain native FLAC file.  For non-stdio streams, you must use
+ *  FLAC__stream_decoder_init_stream() and provide callbacks for the I/O.
+ *
+ *  This function should be called after FLAC__stream_decoder_new() and
+ *  FLAC__stream_decoder_set_*() but before any of the
+ *  FLAC__stream_decoder_process_*() functions.  Will set and return the
+ *  decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
+ *  if initialization succeeded.
+ *
+ * \param  decoder            An uninitialized decoder instance.
+ * \param  file               An open FLAC file.  The file should have been
+ *                            opened with mode \c "rb" and rewound.  The file
+ *                            becomes owned by the decoder and should not be
+ *                            manipulated by the client while decoding.
+ *                            Unless \a file is \c stdin, it will be closed
+ *                            when FLAC__stream_decoder_finish() is called.
+ *                            Note however that seeking will not work when
+ *                            decoding from \c stdin since it is not seekable.
+ * \param  write_callback     See FLAC__StreamDecoderWriteCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  metadata_callback  See FLAC__StreamDecoderMetadataCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.
+ * \param  error_callback     See FLAC__StreamDecoderErrorCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code decoder != NULL \endcode
+ *    \code file != NULL \endcode
+ * \retval FLAC__StreamDecoderInitStatus
+ *    \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamDecoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_FILE(
+	FLAC__StreamDecoder *decoder,
+	FILE *file,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+);
+
+/** Initialize the decoder instance to decode Ogg FLAC files.
+ *
+ *  This flavor of initialization sets up the decoder to decode from a
+ *  plain Ogg FLAC file.  For non-stdio streams, you must use
+ *  FLAC__stream_decoder_init_ogg_stream() and provide callbacks for the I/O.
+ *
+ *  This function should be called after FLAC__stream_decoder_new() and
+ *  FLAC__stream_decoder_set_*() but before any of the
+ *  FLAC__stream_decoder_process_*() functions.  Will set and return the
+ *  decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
+ *  if initialization succeeded.
+ *
+ *  \note Support for Ogg FLAC in the library is optional.  If this
+ *  library has been built without support for Ogg FLAC, this function
+ *  will return \c FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER.
+ *
+ * \param  decoder            An uninitialized decoder instance.
+ * \param  file               An open FLAC file.  The file should have been
+ *                            opened with mode \c "rb" and rewound.  The file
+ *                            becomes owned by the decoder and should not be
+ *                            manipulated by the client while decoding.
+ *                            Unless \a file is \c stdin, it will be closed
+ *                            when FLAC__stream_decoder_finish() is called.
+ *                            Note however that seeking will not work when
+ *                            decoding from \c stdin since it is not seekable.
+ * \param  write_callback     See FLAC__StreamDecoderWriteCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  metadata_callback  See FLAC__StreamDecoderMetadataCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.
+ * \param  error_callback     See FLAC__StreamDecoderErrorCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code decoder != NULL \endcode
+ *    \code file != NULL \endcode
+ * \retval FLAC__StreamDecoderInitStatus
+ *    \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamDecoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_FILE(
+	FLAC__StreamDecoder *decoder,
+	FILE *file,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+);
+
+/** Initialize the decoder instance to decode native FLAC files.
+ *
+ *  This flavor of initialization sets up the decoder to decode from a plain
+ *  native FLAC file.  If POSIX fopen() semantics are not sufficient, you must
+ *  use FLAC__stream_decoder_init_FILE(), or FLAC__stream_decoder_init_stream()
+ *  and provide callbacks for the I/O.
+ *
+ *  On Windows, filename must be a UTF-8 encoded filename, which libFLAC
+ *  internally translates to an appropriate representation to use with
+ *  _wfopen. On all other systems, filename is passed to fopen without
+ *  any translation.
+ *
+ *  This function should be called after FLAC__stream_decoder_new() and
+ *  FLAC__stream_decoder_set_*() but before any of the
+ *  FLAC__stream_decoder_process_*() functions.  Will set and return the
+ *  decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
+ *  if initialization succeeded.
+ *
+ * \param  decoder            An uninitialized decoder instance.
+ * \param  filename           The name of the file to decode from.  The file will
+ *                            be opened with fopen().  Use \c NULL to decode from
+ *                            \c stdin.  Note that \c stdin is not seekable.
+ * \param  write_callback     See FLAC__StreamDecoderWriteCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  metadata_callback  See FLAC__StreamDecoderMetadataCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.
+ * \param  error_callback     See FLAC__StreamDecoderErrorCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__StreamDecoderInitStatus
+ *    \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamDecoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_file(
+	FLAC__StreamDecoder *decoder,
+	const char *filename,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+);
+
+/** Initialize the decoder instance to decode Ogg FLAC files.
+ *
+ *  This flavor of initialization sets up the decoder to decode from a plain
+ *  Ogg FLAC file.  If POSIX fopen() semantics are not sufficient, you must use
+ *  FLAC__stream_decoder_init_ogg_FILE(), or FLAC__stream_decoder_init_ogg_stream()
+ *  and provide callbacks for the I/O.
+ *
+ *  On Windows, filename must be a UTF-8 encoded filename, which libFLAC
+ *  internally translates to an appropriate representation to use with
+ *  _wfopen. On all other systems, filename is passed to fopen without
+ *  any translation.
+ *
+ *  This function should be called after FLAC__stream_decoder_new() and
+ *  FLAC__stream_decoder_set_*() but before any of the
+ *  FLAC__stream_decoder_process_*() functions.  Will set and return the
+ *  decoder state, which will be FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
+ *  if initialization succeeded.
+ *
+ *  \note Support for Ogg FLAC in the library is optional.  If this
+ *  library has been built without support for Ogg FLAC, this function
+ *  will return \c FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER.
+ *
+ * \param  decoder            An uninitialized decoder instance.
+ * \param  filename           The name of the file to decode from.  The file will
+ *                            be opened with fopen().  Use \c NULL to decode from
+ *                            \c stdin.  Note that \c stdin is not seekable.
+ * \param  write_callback     See FLAC__StreamDecoderWriteCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  metadata_callback  See FLAC__StreamDecoderMetadataCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.
+ * \param  error_callback     See FLAC__StreamDecoderErrorCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__StreamDecoderInitStatus
+ *    \c FLAC__STREAM_DECODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamDecoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_file(
+	FLAC__StreamDecoder *decoder,
+	const char *filename,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+);
+
+/** Finish the decoding process.
+ *  Flushes the decoding buffer, releases resources, resets the decoder
+ *  settings to their defaults, and returns the decoder state to
+ *  FLAC__STREAM_DECODER_UNINITIALIZED.
+ *
+ *  In the event of a prematurely-terminated decode, it is not strictly
+ *  necessary to call this immediately before FLAC__stream_decoder_delete()
+ *  but it is good practice to match every FLAC__stream_decoder_init_*()
+ *  with a FLAC__stream_decoder_finish().
+ *
+ * \param  decoder  An uninitialized decoder instance.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if MD5 checking is on AND a STREAMINFO block was available
+ *    AND the MD5 signature in the STREAMINFO block was non-zero AND the
+ *    signature does not match the one computed by the decoder; else
+ *    \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder);
+
+/** Flush the stream input.
+ *  The decoder's input buffer will be cleared and the state set to
+ *  \c FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC.  This will also turn
+ *  off MD5 checking.
+ *
+ * \param  decoder  A decoder instance.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if successful, else \c false if a memory allocation
+ *    error occurs (in which case the state will be set to
+ *    \c FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR).
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder);
+
+/** Reset the decoding process.
+ *  The decoder's input buffer will be cleared and the state set to
+ *  \c FLAC__STREAM_DECODER_SEARCH_FOR_METADATA.  This is similar to
+ *  FLAC__stream_decoder_finish() except that the settings are
+ *  preserved; there is no need to call FLAC__stream_decoder_init_*()
+ *  before decoding again.  MD5 checking will be restored to its original
+ *  setting.
+ *
+ *  If the decoder is seekable, or was initialized with
+ *  FLAC__stream_decoder_init*_FILE() or FLAC__stream_decoder_init*_file(),
+ *  the decoder will also attempt to seek to the beginning of the file.
+ *  If this rewind fails, this function will return \c false.  It follows
+ *  that FLAC__stream_decoder_reset() cannot be used when decoding from
+ *  \c stdin.
+ *
+ *  If the decoder was initialized with FLAC__stream_encoder_init*_stream()
+ *  and is not seekable (i.e. no seek callback was provided or the seek
+ *  callback returns \c FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED), it
+ *  is the duty of the client to start feeding data from the beginning of
+ *  the stream on the next FLAC__stream_decoder_process_*() call.
+ *
+ * \param  decoder  A decoder instance.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if successful, else \c false if a memory allocation occurs
+ *    (in which case the state will be set to
+ *    \c FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR) or a seek error
+ *    occurs (the state will be unchanged).
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder);
+
+/** Decode one metadata block or audio frame.
+ *  This version instructs the decoder to decode a either a single metadata
+ *  block or a single frame and stop, unless the callbacks return a fatal
+ *  error or the read callback returns
+ *  \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM.
+ *
+ *  As the decoder needs more input it will call the read callback.
+ *  Depending on what was decoded, the metadata or write callback will be
+ *  called with the decoded metadata block or audio frame.
+ *
+ *  Unless there is a fatal read error or end of stream, this function
+ *  will return once one whole frame is decoded.  In other words, if the
+ *  stream is not synchronized or points to a corrupt frame header, the
+ *  decoder will continue to try and resync until it gets to a valid
+ *  frame, then decode one frame, then return.  If the decoder points to
+ *  a frame whose frame CRC in the frame footer does not match the
+ *  computed frame CRC, this function will issue a
+ *  FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH error to the
+ *  error callback, and return, having decoded one complete, although
+ *  corrupt, frame.  (Such corrupted frames are sent as silence of the
+ *  correct length to the write callback.)
+ *
+ * \param  decoder  An initialized decoder instance.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if any fatal read, write, or memory allocation error
+ *    occurred (meaning decoding must stop), else \c true; for more
+ *    information about the decoder, check the decoder state with
+ *    FLAC__stream_decoder_get_state().
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder);
+
+/** Decode until the end of the metadata.
+ *  This version instructs the decoder to decode from the current position
+ *  and continue until all the metadata has been read, or until the
+ *  callbacks return a fatal error or the read callback returns
+ *  \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM.
+ *
+ *  As the decoder needs more input it will call the read callback.
+ *  As each metadata block is decoded, the metadata callback will be called
+ *  with the decoded metadata.
+ *
+ * \param  decoder  An initialized decoder instance.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if any fatal read, write, or memory allocation error
+ *    occurred (meaning decoding must stop), else \c true; for more
+ *    information about the decoder, check the decoder state with
+ *    FLAC__stream_decoder_get_state().
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder);
+
+/** Decode until the end of the stream.
+ *  This version instructs the decoder to decode from the current position
+ *  and continue until the end of stream (the read callback returns
+ *  \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM), or until the
+ *  callbacks return a fatal error.
+ *
+ *  As the decoder needs more input it will call the read callback.
+ *  As each metadata block and frame is decoded, the metadata or write
+ *  callback will be called with the decoded metadata or frame.
+ *
+ * \param  decoder  An initialized decoder instance.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if any fatal read, write, or memory allocation error
+ *    occurred (meaning decoding must stop), else \c true; for more
+ *    information about the decoder, check the decoder state with
+ *    FLAC__stream_decoder_get_state().
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder);
+
+/** Skip one audio frame.
+ *  This version instructs the decoder to 'skip' a single frame and stop,
+ *  unless the callbacks return a fatal error or the read callback returns
+ *  \c FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM.
+ *
+ *  The decoding flow is the same as what occurs when
+ *  FLAC__stream_decoder_process_single() is called to process an audio
+ *  frame, except that this function does not decode the parsed data into
+ *  PCM or call the write callback.  The integrity of the frame is still
+ *  checked the same way as in the other process functions.
+ *
+ *  This function will return once one whole frame is skipped, in the
+ *  same way that FLAC__stream_decoder_process_single() will return once
+ *  one whole frame is decoded.
+ *
+ *  This function can be used in more quickly determining FLAC frame
+ *  boundaries when decoding of the actual data is not needed, for
+ *  example when an application is separating a FLAC stream into frames
+ *  for editing or storing in a container.  To do this, the application
+ *  can use FLAC__stream_decoder_skip_single_frame() to quickly advance
+ *  to the next frame, then use
+ *  FLAC__stream_decoder_get_decode_position() to find the new frame
+ *  boundary.
+ *
+ *  This function should only be called when the stream has advanced
+ *  past all the metadata, otherwise it will return \c false.
+ *
+ * \param  decoder  An initialized decoder instance not in a metadata
+ *                  state.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if any fatal read, write, or memory allocation error
+ *    occurred (meaning decoding must stop), or if the decoder
+ *    is in the FLAC__STREAM_DECODER_SEARCH_FOR_METADATA or
+ *    FLAC__STREAM_DECODER_READ_METADATA state, else \c true; for more
+ *    information about the decoder, check the decoder state with
+ *    FLAC__stream_decoder_get_state().
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_skip_single_frame(FLAC__StreamDecoder *decoder);
+
+/** Flush the input and seek to an absolute sample.
+ *  Decoding will resume at the given sample.  Note that because of
+ *  this, the next write callback may contain a partial block.  The
+ *  client must support seeking the input or this function will fail
+ *  and return \c false.  Furthermore, if the decoder state is
+ *  \c FLAC__STREAM_DECODER_SEEK_ERROR, then the decoder must be flushed
+ *  with FLAC__stream_decoder_flush() or reset with
+ *  FLAC__stream_decoder_reset() before decoding can continue.
+ *
+ * \param  decoder  A decoder instance.
+ * \param  sample   The target sample number to seek to.
+ * \assert
+ *    \code decoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c true if successful, else \c false.
+ */
+FLAC_API FLAC__bool FLAC__stream_decoder_seek_absolute(FLAC__StreamDecoder *decoder, FLAC__uint64 sample);
+
+/* \} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/stream_encoder.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/stream_encoder.h
new file mode 100644
index 00000000..1d7bd258
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/FLAC/stream_encoder.h
@@ -0,0 +1,1837 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__STREAM_ENCODER_H
+#define FLAC__STREAM_ENCODER_H
+
+#include <stdio.h> /* for FILE */
+#include "export.h"
+#include "format.h"
+#include "stream_decoder.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/** \file include/FLAC/stream_encoder.h
+ *
+ *  \brief
+ *  This module contains the functions which implement the stream
+ *  encoder.
+ *
+ *  See the detailed documentation in the
+ *  \link flac_stream_encoder stream encoder \endlink module.
+ */
+
+/** \defgroup flac_encoder FLAC/ \*_encoder.h: encoder interfaces
+ *  \ingroup flac
+ *
+ *  \brief
+ *  This module describes the encoder layers provided by libFLAC.
+ *
+ * The stream encoder can be used to encode complete streams either to the
+ * client via callbacks, or directly to a file, depending on how it is
+ * initialized.  When encoding via callbacks, the client provides a write
+ * callback which will be called whenever FLAC data is ready to be written.
+ * If the client also supplies a seek callback, the encoder will also
+ * automatically handle the writing back of metadata discovered while
+ * encoding, like stream info, seek points offsets, etc.  When encoding to
+ * a file, the client needs only supply a filename or open \c FILE* and an
+ * optional progress callback for periodic notification of progress; the
+ * write and seek callbacks are supplied internally.  For more info see the
+ * \link flac_stream_encoder stream encoder \endlink module.
+ */
+
+/** \defgroup flac_stream_encoder FLAC/stream_encoder.h: stream encoder interface
+ *  \ingroup flac_encoder
+ *
+ *  \brief
+ *  This module contains the functions which implement the stream
+ *  encoder.
+ *
+ * The stream encoder can encode to native FLAC, and optionally Ogg FLAC
+ * (check FLAC_API_SUPPORTS_OGG_FLAC) streams and files.
+ *
+ * The basic usage of this encoder is as follows:
+ * - The program creates an instance of an encoder using
+ *   FLAC__stream_encoder_new().
+ * - The program overrides the default settings using
+ *   FLAC__stream_encoder_set_*() functions.  At a minimum, the following
+ *   functions should be called:
+ *   - FLAC__stream_encoder_set_channels()
+ *   - FLAC__stream_encoder_set_bits_per_sample()
+ *   - FLAC__stream_encoder_set_sample_rate()
+ *   - FLAC__stream_encoder_set_ogg_serial_number() (if encoding to Ogg FLAC)
+ *   - FLAC__stream_encoder_set_total_samples_estimate() (if known)
+ * - If the application wants to control the compression level or set its own
+ *   metadata, then the following should also be called:
+ *   - FLAC__stream_encoder_set_compression_level()
+ *   - FLAC__stream_encoder_set_verify()
+ *   - FLAC__stream_encoder_set_metadata()
+ * - The rest of the set functions should only be called if the client needs
+ *   exact control over how the audio is compressed; thorough understanding
+ *   of the FLAC format is necessary to achieve good results.
+ * - The program initializes the instance to validate the settings and
+ *   prepare for encoding using
+ *   - FLAC__stream_encoder_init_stream() or FLAC__stream_encoder_init_FILE()
+ *     or FLAC__stream_encoder_init_file() for native FLAC
+ *   - FLAC__stream_encoder_init_ogg_stream() or FLAC__stream_encoder_init_ogg_FILE()
+ *     or FLAC__stream_encoder_init_ogg_file() for Ogg FLAC
+ * - The program calls FLAC__stream_encoder_process() or
+ *   FLAC__stream_encoder_process_interleaved() to encode data, which
+ *   subsequently calls the callbacks when there is encoder data ready
+ *   to be written.
+ * - The program finishes the encoding with FLAC__stream_encoder_finish(),
+ *   which causes the encoder to encode any data still in its input pipe,
+ *   update the metadata with the final encoding statistics if output
+ *   seeking is possible, and finally reset the encoder to the
+ *   uninitialized state.
+ * - The instance may be used again or deleted with
+ *   FLAC__stream_encoder_delete().
+ *
+ * In more detail, the stream encoder functions similarly to the
+ * \link flac_stream_decoder stream decoder \endlink, but has fewer
+ * callbacks and more options.  Typically the client will create a new
+ * instance by calling FLAC__stream_encoder_new(), then set the necessary
+ * parameters with FLAC__stream_encoder_set_*(), and initialize it by
+ * calling one of the FLAC__stream_encoder_init_*() functions.
+ *
+ * Unlike the decoders, the stream encoder has many options that can
+ * affect the speed and compression ratio.  When setting these parameters
+ * you should have some basic knowledge of the format (see the
+ * <A HREF="../documentation_format_overview.html">user-level documentation</A>
+ * or the <A HREF="../format.html">formal description</A>).  The
+ * FLAC__stream_encoder_set_*() functions themselves do not validate the
+ * values as many are interdependent.  The FLAC__stream_encoder_init_*()
+ * functions will do this, so make sure to pay attention to the state
+ * returned by FLAC__stream_encoder_init_*() to make sure that it is
+ * FLAC__STREAM_ENCODER_INIT_STATUS_OK.  Any parameters that are not set
+ * before FLAC__stream_encoder_init_*() will take on the defaults from
+ * the constructor.
+ *
+ * There are three initialization functions for native FLAC, one for
+ * setting up the encoder to encode FLAC data to the client via
+ * callbacks, and two for encoding directly to a file.
+ *
+ * For encoding via callbacks, use FLAC__stream_encoder_init_stream().
+ * You must also supply a write callback which will be called anytime
+ * there is raw encoded data to write.  If the client can seek the output
+ * it is best to also supply seek and tell callbacks, as this allows the
+ * encoder to go back after encoding is finished to write back
+ * information that was collected while encoding, like seek point offsets,
+ * frame sizes, etc.
+ *
+ * For encoding directly to a file, use FLAC__stream_encoder_init_FILE()
+ * or FLAC__stream_encoder_init_file().  Then you must only supply a
+ * filename or open \c FILE*; the encoder will handle all the callbacks
+ * internally.  You may also supply a progress callback for periodic
+ * notification of the encoding progress.
+ *
+ * There are three similarly-named init functions for encoding to Ogg
+ * FLAC streams.  Check \c FLAC_API_SUPPORTS_OGG_FLAC to find out if the
+ * library has been built with Ogg support.
+ *
+ * The call to FLAC__stream_encoder_init_*() currently will also immediately
+ * call the write callback several times, once with the \c fLaC signature,
+ * and once for each encoded metadata block.  Note that for Ogg FLAC
+ * encoding you will usually get at least twice the number of callbacks than
+ * with native FLAC, one for the Ogg page header and one for the page body.
+ *
+ * After initializing the instance, the client may feed audio data to the
+ * encoder in one of two ways:
+ *
+ * - Channel separate, through FLAC__stream_encoder_process() - The client
+ *   will pass an array of pointers to buffers, one for each channel, to
+ *   the encoder, each of the same length.  The samples need not be
+ *   block-aligned, but each channel should have the same number of samples.
+ * - Channel interleaved, through
+ *   FLAC__stream_encoder_process_interleaved() - The client will pass a single
+ *   pointer to data that is channel-interleaved (i.e. channel0_sample0,
+ *   channel1_sample0, ... , channelN_sample0, channel0_sample1, ...).
+ *   Again, the samples need not be block-aligned but they must be
+ *   sample-aligned, i.e. the first value should be channel0_sample0 and
+ *   the last value channelN_sampleM.
+ *
+ * Note that for either process call, each sample in the buffers should be a
+ * signed integer, right-justified to the resolution set by
+ * FLAC__stream_encoder_set_bits_per_sample().  For example, if the resolution
+ * is 16 bits per sample, the samples should all be in the range [-32768,32767].
+ *
+ * When the client is finished encoding data, it calls
+ * FLAC__stream_encoder_finish(), which causes the encoder to encode any
+ * data still in its input pipe, and call the metadata callback with the
+ * final encoding statistics.  Then the instance may be deleted with
+ * FLAC__stream_encoder_delete() or initialized again to encode another
+ * stream.
+ *
+ * For programs that write their own metadata, but that do not know the
+ * actual metadata until after encoding, it is advantageous to instruct
+ * the encoder to write a PADDING block of the correct size, so that
+ * instead of rewriting the whole stream after encoding, the program can
+ * just overwrite the PADDING block.  If only the maximum size of the
+ * metadata is known, the program can write a slightly larger padding
+ * block, then split it after encoding.
+ *
+ * Make sure you understand how lengths are calculated.  All FLAC metadata
+ * blocks have a 4 byte header which contains the type and length.  This
+ * length does not include the 4 bytes of the header.  See the format page
+ * for the specification of metadata blocks and their lengths.
+ *
+ * \note
+ * If you are writing the FLAC data to a file via callbacks, make sure it
+ * is open for update (e.g. mode "w+" for stdio streams).  This is because
+ * after the first encoding pass, the encoder will try to seek back to the
+ * beginning of the stream, to the STREAMINFO block, to write some data
+ * there.  (If using FLAC__stream_encoder_init*_file() or
+ * FLAC__stream_encoder_init*_FILE(), the file is managed internally.)
+ *
+ * \note
+ * The "set" functions may only be called when the encoder is in the
+ * state FLAC__STREAM_ENCODER_UNINITIALIZED, i.e. after
+ * FLAC__stream_encoder_new() or FLAC__stream_encoder_finish(), but
+ * before FLAC__stream_encoder_init_*().  If this is the case they will
+ * return \c true, otherwise \c false.
+ *
+ * \note
+ * FLAC__stream_encoder_finish() resets all settings to the constructor
+ * defaults.
+ *
+ * \{
+ */
+
+
+/** State values for a FLAC__StreamEncoder.
+ *
+ * The encoder's state can be obtained by calling FLAC__stream_encoder_get_state().
+ *
+ * If the encoder gets into any other state besides \c FLAC__STREAM_ENCODER_OK
+ * or \c FLAC__STREAM_ENCODER_UNINITIALIZED, it becomes invalid for encoding and
+ * must be deleted with FLAC__stream_encoder_delete().
+ */
+typedef enum {
+
+	FLAC__STREAM_ENCODER_OK = 0,
+	/**< The encoder is in the normal OK state and samples can be processed. */
+
+	FLAC__STREAM_ENCODER_UNINITIALIZED,
+	/**< The encoder is in the uninitialized state; one of the
+	 * FLAC__stream_encoder_init_*() functions must be called before samples
+	 * can be processed.
+	 */
+
+	FLAC__STREAM_ENCODER_OGG_ERROR,
+	/**< An error occurred in the underlying Ogg layer.  */
+
+	FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR,
+	/**< An error occurred in the underlying verify stream decoder;
+	 * check FLAC__stream_encoder_get_verify_decoder_state().
+	 */
+
+	FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA,
+	/**< The verify decoder detected a mismatch between the original
+	 * audio signal and the decoded audio signal.
+	 */
+
+	FLAC__STREAM_ENCODER_CLIENT_ERROR,
+	/**< One of the callbacks returned a fatal error. */
+
+	FLAC__STREAM_ENCODER_IO_ERROR,
+	/**< An I/O error occurred while opening/reading/writing a file.
+	 * Check \c errno.
+	 */
+
+	FLAC__STREAM_ENCODER_FRAMING_ERROR,
+	/**< An error occurred while writing the stream; usually, the
+	 * write_callback returned an error.
+	 */
+
+	FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR
+	/**< Memory allocation failed. */
+
+} FLAC__StreamEncoderState;
+
+/** Maps a FLAC__StreamEncoderState to a C string.
+ *
+ *  Using a FLAC__StreamEncoderState as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamEncoderStateString[];
+
+
+/** Possible return values for the FLAC__stream_encoder_init_*() functions.
+ */
+typedef enum {
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_OK = 0,
+	/**< Initialization was successful. */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR,
+	/**< General failure to set up encoder; call FLAC__stream_encoder_get_state() for cause. */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER,
+	/**< The library was not compiled with support for the given container
+	 * format.
+	 */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS,
+	/**< A required callback was not supplied. */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS,
+	/**< The encoder has an invalid setting for number of channels. */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE,
+	/**< The encoder has an invalid setting for bits-per-sample.
+	 * FLAC supports 4-32 bps.
+	 */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE,
+	/**< The encoder has an invalid setting for the input sample rate. */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE,
+	/**< The encoder has an invalid setting for the block size. */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER,
+	/**< The encoder has an invalid setting for the maximum LPC order. */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION,
+	/**< The encoder has an invalid setting for the precision of the quantized linear predictor coefficients. */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER,
+	/**< The specified block size is less than the maximum LPC order. */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE,
+	/**< The encoder is bound to the <A HREF="../format.html#subset">Subset</A> but other settings violate it. */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA,
+	/**< The metadata input to the encoder is invalid, in one of the following ways:
+	 * - FLAC__stream_encoder_set_metadata() was called with a null pointer but a block count > 0
+	 * - One of the metadata blocks contains an undefined type
+	 * - It contains an illegal CUESHEET as checked by FLAC__format_cuesheet_is_legal()
+	 * - It contains an illegal SEEKTABLE as checked by FLAC__format_seektable_is_legal()
+	 * - It contains more than one SEEKTABLE block or more than one VORBIS_COMMENT block
+	 */
+
+	FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED
+	/**< FLAC__stream_encoder_init_*() was called when the encoder was
+	 * already initialized, usually because
+	 * FLAC__stream_encoder_finish() was not called.
+	 */
+
+} FLAC__StreamEncoderInitStatus;
+
+/** Maps a FLAC__StreamEncoderInitStatus to a C string.
+ *
+ *  Using a FLAC__StreamEncoderInitStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamEncoderInitStatusString[];
+
+
+/** Return values for the FLAC__StreamEncoder read callback.
+ */
+typedef enum {
+
+	FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE,
+	/**< The read was OK and decoding can continue. */
+
+	FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM,
+	/**< The read was attempted at the end of the stream. */
+
+	FLAC__STREAM_ENCODER_READ_STATUS_ABORT,
+	/**< An unrecoverable error occurred. */
+
+	FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED
+	/**< Client does not support reading back from the output. */
+
+} FLAC__StreamEncoderReadStatus;
+
+/** Maps a FLAC__StreamEncoderReadStatus to a C string.
+ *
+ *  Using a FLAC__StreamEncoderReadStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamEncoderReadStatusString[];
+
+
+/** Return values for the FLAC__StreamEncoder write callback.
+ */
+typedef enum {
+
+	FLAC__STREAM_ENCODER_WRITE_STATUS_OK = 0,
+	/**< The write was OK and encoding can continue. */
+
+	FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR
+	/**< An unrecoverable error occurred.  The encoder will return from the process call. */
+
+} FLAC__StreamEncoderWriteStatus;
+
+/** Maps a FLAC__StreamEncoderWriteStatus to a C string.
+ *
+ *  Using a FLAC__StreamEncoderWriteStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamEncoderWriteStatusString[];
+
+
+/** Return values for the FLAC__StreamEncoder seek callback.
+ */
+typedef enum {
+
+	FLAC__STREAM_ENCODER_SEEK_STATUS_OK,
+	/**< The seek was OK and encoding can continue. */
+
+	FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR,
+	/**< An unrecoverable error occurred. */
+
+	FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED
+	/**< Client does not support seeking. */
+
+} FLAC__StreamEncoderSeekStatus;
+
+/** Maps a FLAC__StreamEncoderSeekStatus to a C string.
+ *
+ *  Using a FLAC__StreamEncoderSeekStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamEncoderSeekStatusString[];
+
+
+/** Return values for the FLAC__StreamEncoder tell callback.
+ */
+typedef enum {
+
+	FLAC__STREAM_ENCODER_TELL_STATUS_OK,
+	/**< The tell was OK and encoding can continue. */
+
+	FLAC__STREAM_ENCODER_TELL_STATUS_ERROR,
+	/**< An unrecoverable error occurred. */
+
+	FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED
+	/**< Client does not support seeking. */
+
+} FLAC__StreamEncoderTellStatus;
+
+/** Maps a FLAC__StreamEncoderTellStatus to a C string.
+ *
+ *  Using a FLAC__StreamEncoderTellStatus as the index to this array
+ *  will give the string equivalent.  The contents should not be modified.
+ */
+extern FLAC_API const char * const FLAC__StreamEncoderTellStatusString[];
+
+
+/***********************************************************************
+ *
+ * class FLAC__StreamEncoder
+ *
+ ***********************************************************************/
+
+struct FLAC__StreamEncoderProtected;
+struct FLAC__StreamEncoderPrivate;
+/** The opaque structure definition for the stream encoder type.
+ *  See the \link flac_stream_encoder stream encoder module \endlink
+ *  for a detailed description.
+ */
+typedef struct {
+	struct FLAC__StreamEncoderProtected *protected_; /* avoid the C++ keyword 'protected' */
+	struct FLAC__StreamEncoderPrivate *private_; /* avoid the C++ keyword 'private' */
+} FLAC__StreamEncoder;
+
+/** Signature for the read callback.
+ *
+ *  A function pointer matching this signature must be passed to
+ *  FLAC__stream_encoder_init_ogg_stream() if seeking is supported.
+ *  The supplied function will be called when the encoder needs to read back
+ *  encoded data.  This happens during the metadata callback, when the encoder
+ *  has to read, modify, and rewrite the metadata (e.g. seekpoints) gathered
+ *  while encoding.  The address of the buffer to be filled is supplied, along
+ *  with the number of bytes the buffer can hold.  The callback may choose to
+ *  supply less data and modify the byte count but must be careful not to
+ *  overflow the buffer.  The callback then returns a status code chosen from
+ *  FLAC__StreamEncoderReadStatus.
+ *
+ * Here is an example of a read callback for stdio streams:
+ * \code
+ * FLAC__StreamEncoderReadStatus read_cb(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
+ * {
+ *   FILE *file = ((MyClientData*)client_data)->file;
+ *   if(*bytes > 0) {
+ *     *bytes = fread(buffer, sizeof(FLAC__byte), *bytes, file);
+ *     if(ferror(file))
+ *       return FLAC__STREAM_ENCODER_READ_STATUS_ABORT;
+ *     else if(*bytes == 0)
+ *       return FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM;
+ *     else
+ *       return FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE;
+ *   }
+ *   else
+ *     return FLAC__STREAM_ENCODER_READ_STATUS_ABORT;
+ * }
+ * \endcode
+ *
+ * \note In general, FLAC__StreamEncoder functions which change the
+ * state should not be called on the \a encoder while in the callback.
+ *
+ * \param  encoder  The encoder instance calling the callback.
+ * \param  buffer   A pointer to a location for the callee to store
+ *                  data to be encoded.
+ * \param  bytes    A pointer to the size of the buffer.  On entry
+ *                  to the callback, it contains the maximum number
+ *                  of bytes that may be stored in \a buffer.  The
+ *                  callee must set it to the actual number of bytes
+ *                  stored (0 in case of error or end-of-stream) before
+ *                  returning.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_encoder_set_client_data().
+ * \retval FLAC__StreamEncoderReadStatus
+ *    The callee's return status.
+ */
+typedef FLAC__StreamEncoderReadStatus (*FLAC__StreamEncoderReadCallback)(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
+
+/** Signature for the write callback.
+ *
+ *  A function pointer matching this signature must be passed to
+ *  FLAC__stream_encoder_init*_stream().  The supplied function will be called
+ *  by the encoder anytime there is raw encoded data ready to write.  It may
+ *  include metadata mixed with encoded audio frames and the data is not
+ *  guaranteed to be aligned on frame or metadata block boundaries.
+ *
+ *  The only duty of the callback is to write out the \a bytes worth of data
+ *  in \a buffer to the current position in the output stream.  The arguments
+ *  \a samples and \a current_frame are purely informational.  If \a samples
+ *  is greater than \c 0, then \a current_frame will hold the current frame
+ *  number that is being written; otherwise it indicates that the write
+ *  callback is being called to write metadata.
+ *
+ * \note
+ * Unlike when writing to native FLAC, when writing to Ogg FLAC the
+ * write callback will be called twice when writing each audio
+ * frame; once for the page header, and once for the page body.
+ * When writing the page header, the \a samples argument to the
+ * write callback will be \c 0.
+ *
+ * \note In general, FLAC__StreamEncoder functions which change the
+ * state should not be called on the \a encoder while in the callback.
+ *
+ * \param  encoder  The encoder instance calling the callback.
+ * \param  buffer   An array of encoded data of length \a bytes.
+ * \param  bytes    The byte length of \a buffer.
+ * \param  samples  The number of samples encoded by \a buffer.
+ *                  \c 0 has a special meaning; see above.
+ * \param  current_frame  The number of the current frame being encoded.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_encoder_init_*().
+ * \retval FLAC__StreamEncoderWriteStatus
+ *    The callee's return status.
+ */
+typedef FLAC__StreamEncoderWriteStatus (*FLAC__StreamEncoderWriteCallback)(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame, void *client_data);
+
+/** Signature for the seek callback.
+ *
+ *  A function pointer matching this signature may be passed to
+ *  FLAC__stream_encoder_init*_stream().  The supplied function will be called
+ *  when the encoder needs to seek the output stream.  The encoder will pass
+ *  the absolute byte offset to seek to, 0 meaning the beginning of the stream.
+ *
+ * Here is an example of a seek callback for stdio streams:
+ * \code
+ * FLAC__StreamEncoderSeekStatus seek_cb(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data)
+ * {
+ *   FILE *file = ((MyClientData*)client_data)->file;
+ *   if(file == stdin)
+ *     return FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED;
+ *   else if(fseeko(file, (off_t)absolute_byte_offset, SEEK_SET) < 0)
+ *     return FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR;
+ *   else
+ *     return FLAC__STREAM_ENCODER_SEEK_STATUS_OK;
+ * }
+ * \endcode
+ *
+ * \note In general, FLAC__StreamEncoder functions which change the
+ * state should not be called on the \a encoder while in the callback.
+ *
+ * \param  encoder  The encoder instance calling the callback.
+ * \param  absolute_byte_offset  The offset from the beginning of the stream
+ *                               to seek to.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_encoder_init_*().
+ * \retval FLAC__StreamEncoderSeekStatus
+ *    The callee's return status.
+ */
+typedef FLAC__StreamEncoderSeekStatus (*FLAC__StreamEncoderSeekCallback)(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data);
+
+/** Signature for the tell callback.
+ *
+ *  A function pointer matching this signature may be passed to
+ *  FLAC__stream_encoder_init*_stream().  The supplied function will be called
+ *  when the encoder needs to know the current position of the output stream.
+ *
+ * \warning
+ * The callback must return the true current byte offset of the output to
+ * which the encoder is writing.  If you are buffering the output, make
+ * sure and take this into account.  If you are writing directly to a
+ * FILE* from your write callback, ftell() is sufficient.  If you are
+ * writing directly to a file descriptor from your write callback, you
+ * can use lseek(fd, SEEK_CUR, 0).  The encoder may later seek back to
+ * these points to rewrite metadata after encoding.
+ *
+ * Here is an example of a tell callback for stdio streams:
+ * \code
+ * FLAC__StreamEncoderTellStatus tell_cb(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
+ * {
+ *   FILE *file = ((MyClientData*)client_data)->file;
+ *   off_t pos;
+ *   if(file == stdin)
+ *     return FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED;
+ *   else if((pos = ftello(file)) < 0)
+ *     return FLAC__STREAM_ENCODER_TELL_STATUS_ERROR;
+ *   else {
+ *     *absolute_byte_offset = (FLAC__uint64)pos;
+ *     return FLAC__STREAM_ENCODER_TELL_STATUS_OK;
+ *   }
+ * }
+ * \endcode
+ *
+ * \note In general, FLAC__StreamEncoder functions which change the
+ * state should not be called on the \a encoder while in the callback.
+ *
+ * \param  encoder  The encoder instance calling the callback.
+ * \param  absolute_byte_offset  The address at which to store the current
+ *                               position of the output.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_encoder_init_*().
+ * \retval FLAC__StreamEncoderTellStatus
+ *    The callee's return status.
+ */
+typedef FLAC__StreamEncoderTellStatus (*FLAC__StreamEncoderTellCallback)(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
+
+/** Signature for the metadata callback.
+ *
+ *  A function pointer matching this signature may be passed to
+ *  FLAC__stream_encoder_init*_stream().  The supplied function will be called
+ *  once at the end of encoding with the populated STREAMINFO structure.  This
+ *  is so the client can seek back to the beginning of the file and write the
+ *  STREAMINFO block with the correct statistics after encoding (like
+ *  minimum/maximum frame size and total samples).
+ *
+ * \note In general, FLAC__StreamEncoder functions which change the
+ * state should not be called on the \a encoder while in the callback.
+ *
+ * \param  encoder      The encoder instance calling the callback.
+ * \param  metadata     The final populated STREAMINFO block.
+ * \param  client_data  The callee's client data set through
+ *                      FLAC__stream_encoder_init_*().
+ */
+typedef void (*FLAC__StreamEncoderMetadataCallback)(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data);
+
+/** Signature for the progress callback.
+ *
+ *  A function pointer matching this signature may be passed to
+ *  FLAC__stream_encoder_init*_file() or FLAC__stream_encoder_init*_FILE().
+ *  The supplied function will be called when the encoder has finished
+ *  writing a frame.  The \c total_frames_estimate argument to the
+ *  callback will be based on the value from
+ *  FLAC__stream_encoder_set_total_samples_estimate().
+ *
+ * \note In general, FLAC__StreamEncoder functions which change the
+ * state should not be called on the \a encoder while in the callback.
+ *
+ * \param  encoder          The encoder instance calling the callback.
+ * \param  bytes_written    Bytes written so far.
+ * \param  samples_written  Samples written so far.
+ * \param  frames_written   Frames written so far.
+ * \param  total_frames_estimate  The estimate of the total number of
+ *                                frames to be written.
+ * \param  client_data      The callee's client data set through
+ *                          FLAC__stream_encoder_init_*().
+ */
+typedef void (*FLAC__StreamEncoderProgressCallback)(const FLAC__StreamEncoder *encoder, FLAC__uint64 bytes_written, FLAC__uint64 samples_written, uint32_t frames_written, uint32_t total_frames_estimate, void *client_data);
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+
+/** Create a new stream encoder instance.  The instance is created with
+ *  default settings; see the individual FLAC__stream_encoder_set_*()
+ *  functions for each setting's default.
+ *
+ * \retval FLAC__StreamEncoder*
+ *    \c NULL if there was an error allocating memory, else the new instance.
+ */
+FLAC_API FLAC__StreamEncoder *FLAC__stream_encoder_new(void);
+
+/** Free an encoder instance.  Deletes the object pointed to by \a encoder.
+ *
+ * \param encoder  A pointer to an existing encoder.
+ * \assert
+ *    \code encoder != NULL \endcode
+ */
+FLAC_API void FLAC__stream_encoder_delete(FLAC__StreamEncoder *encoder);
+
+
+/***********************************************************************
+ *
+ * Public class method prototypes
+ *
+ ***********************************************************************/
+
+/** Set the serial number for the FLAC stream to use in the Ogg container.
+ *
+ * \note
+ * This does not need to be set for native FLAC encoding.
+ *
+ * \note
+ * It is recommended to set a serial number explicitly as the default of '0'
+ * may collide with other streams.
+ *
+ * \default \c 0
+ * \param  encoder        An encoder instance to set.
+ * \param  serial_number  See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_ogg_serial_number(FLAC__StreamEncoder *encoder, long serial_number);
+
+/** Set the "verify" flag.  If \c true, the encoder will verify it's own
+ *  encoded output by feeding it through an internal decoder and comparing
+ *  the original signal against the decoded signal.  If a mismatch occurs,
+ *  the process call will return \c false.  Note that this will slow the
+ *  encoding process by the extra time required for decoding and comparison.
+ *
+ * \default \c false
+ * \param  encoder  An encoder instance to set.
+ * \param  value    Flag value (see above).
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_verify(FLAC__StreamEncoder *encoder, FLAC__bool value);
+
+/** Set the <A HREF="../format.html#subset">Subset</A> flag.  If \c true,
+ *  the encoder will comply with the Subset and will check the
+ *  settings during FLAC__stream_encoder_init_*() to see if all settings
+ *  comply.  If \c false, the settings may take advantage of the full
+ *  range that the format allows.
+ *
+ *  Make sure you know what it entails before setting this to \c false.
+ *
+ * \default \c true
+ * \param  encoder  An encoder instance to set.
+ * \param  value    Flag value (see above).
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_streamable_subset(FLAC__StreamEncoder *encoder, FLAC__bool value);
+
+/** Set the number of channels to be encoded.
+ *
+ * \default \c 2
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_channels(FLAC__StreamEncoder *encoder, uint32_t value);
+
+/** Set the sample resolution of the input to be encoded.
+ *
+ * \warning
+ * Do not feed the encoder data that is wider than the value you
+ * set here or you will generate an invalid stream.
+ *
+ * \default \c 16
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_bits_per_sample(FLAC__StreamEncoder *encoder, uint32_t value);
+
+/** Set the sample rate (in Hz) of the input to be encoded.
+ *
+ * \default \c 44100
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_sample_rate(FLAC__StreamEncoder *encoder, uint32_t value);
+
+/** Set the compression level
+ *
+ * The compression level is roughly proportional to the amount of effort
+ * the encoder expends to compress the file.  A higher level usually
+ * means more computation but higher compression.  The default level is
+ * suitable for most applications.
+ *
+ * Currently the levels range from \c 0 (fastest, least compression) to
+ * \c 8 (slowest, most compression).  A value larger than \c 8 will be
+ * treated as \c 8.
+ *
+ * This function automatically calls the following other \c _set_
+ * functions with appropriate values, so the client does not need to
+ * unless it specifically wants to override them:
+ * - FLAC__stream_encoder_set_do_mid_side_stereo()
+ * - FLAC__stream_encoder_set_loose_mid_side_stereo()
+ * - FLAC__stream_encoder_set_apodization()
+ * - FLAC__stream_encoder_set_max_lpc_order()
+ * - FLAC__stream_encoder_set_qlp_coeff_precision()
+ * - FLAC__stream_encoder_set_do_qlp_coeff_prec_search()
+ * - FLAC__stream_encoder_set_do_escape_coding()
+ * - FLAC__stream_encoder_set_do_exhaustive_model_search()
+ * - FLAC__stream_encoder_set_min_residual_partition_order()
+ * - FLAC__stream_encoder_set_max_residual_partition_order()
+ * - FLAC__stream_encoder_set_rice_parameter_search_dist()
+ *
+ * The actual values set for each level are:
+ * <table>
+ * <tr>
+ *  <td><b>level</b></td>
+ *  <td>do mid-side stereo</td>
+ *  <td>loose mid-side stereo</td>
+ *  <td>apodization</td>
+ *  <td>max lpc order</td>
+ *  <td>qlp coeff precision</td>
+ *  <td>qlp coeff prec search</td>
+ *  <td>escape coding</td>
+ *  <td>exhaustive model search</td>
+ *  <td>min residual partition order</td>
+ *  <td>max residual partition order</td>
+ *  <td>rice parameter search dist</td>
+ * </tr>
+ * <tr>  <td><b>0</b></td> <td>false</td> <td>false</td> <td>tukey(0.5)</td>         <td>0</td>  <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>3</td> <td>0</td> </tr>
+ * <tr>  <td><b>1</b></td> <td>true</td>  <td>true</td>  <td>tukey(0.5)</td>         <td>0</td>  <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>3</td> <td>0</td> </tr>
+ * <tr>  <td><b>2</b></td> <td>true</td>  <td>false</td> <td>tukey(0.5)</td>         <td>0</td>  <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>3</td> <td>0</td> </tr>
+ * <tr>  <td><b>3</b></td> <td>false</td> <td>false</td> <td>tukey(0.5)</td>         <td>6</td>  <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>4</td> <td>0</td> </tr>
+ * <tr>  <td><b>4</b></td> <td>true</td>  <td>true</td>  <td>tukey(0.5)</td>         <td>8</td>  <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>4</td> <td>0</td> </tr>
+ * <tr>  <td><b>5</b></td> <td>true</td>  <td>false</td> <td>tukey(0.5)</td>         <td>8</td>  <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>5</td> <td>0</td> </tr>
+ * <tr>  <td><b>6</b></td> <td>true</td>  <td>false</td> <td>subdivide_tukey(2)</td> <td>8</td>  <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>6</td> <td>0</td> </tr>
+ * <tr>  <td><b>7</b></td> <td>true</td>  <td>false</td> <td>subdivide_tukey(2)</td> <td>12</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>6</td> <td>0</td> </tr>
+ * <tr>  <td><b>8</b></td> <td>true</td>  <td>false</td> <td>subdivide_tukey(2)</td> <td>12</td> <td>0</td> <td>false</td> <td>false</td> <td>false</td> <td>0</td> <td>6</td> <td>0</td> </tr>
+ * </table>
+ *
+ * \default \c 5
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_compression_level(FLAC__StreamEncoder *encoder, uint32_t value);
+
+/** Set the blocksize to use while encoding.
+ *
+ * The number of samples to use per frame.  Use \c 0 to let the encoder
+ * estimate a blocksize; this is usually best.
+ *
+ * \default \c 0
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_blocksize(FLAC__StreamEncoder *encoder, uint32_t value);
+
+/** Set to \c true to enable mid-side encoding on stereo input.  The
+ *  number of channels must be 2 for this to have any effect.  Set to
+ *  \c false to use only independent channel coding.
+ *
+ * \default \c true
+ * \param  encoder  An encoder instance to set.
+ * \param  value    Flag value (see above).
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_do_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value);
+
+/** Set to \c true to enable adaptive switching between mid-side and
+ *  left-right encoding on stereo input.  Set to \c false to use
+ *  exhaustive searching.  Setting this to \c true requires
+ *  FLAC__stream_encoder_set_do_mid_side_stereo() to also be set to
+ *  \c true in order to have any effect.
+ *
+ * \default \c false
+ * \param  encoder  An encoder instance to set.
+ * \param  value    Flag value (see above).
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_loose_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value);
+
+/** Sets the apodization function(s) the encoder will use when windowing
+ *  audio data for LPC analysis.
+ *
+ * The \a specification is a plain ASCII string which specifies exactly
+ * which functions to use.  There may be more than one (up to 32),
+ * separated by \c ';' characters.  Some functions take one or more
+ * comma-separated arguments in parentheses.
+ *
+ * The available functions are \c bartlett, \c bartlett_hann,
+ * \c blackman, \c blackman_harris_4term_92db, \c connes, \c flattop,
+ * \c gauss(STDDEV), \c hamming, \c hann, \c kaiser_bessel, \c nuttall,
+ * \c rectangle, \c triangle, \c tukey(P), \c partial_tukey(n[/ov[/P]]),
+ * \c punchout_tukey(n[/ov[/P]]), \c subdivide_tukey(n[/P]), \c welch.
+ *
+ * For \c gauss(STDDEV), STDDEV specifies the standard deviation
+ * (0<STDDEV<=0.5).
+ *
+ * For \c tukey(P), P specifies the fraction of the window that is
+ * tapered (0<=P<=1).  P=0 corresponds to \c rectangle and P=1
+ * corresponds to \c hann.
+ *
+ * Specifying \c partial_tukey or \c punchout_tukey works a little
+ * different. These do not specify a single apodization function, but
+ * a series of them with some overlap. partial_tukey specifies a series
+ * of small windows (all treated separately) while punchout_tukey
+ * specifies a series of windows that have a hole in them. In this way,
+ * the predictor is constructed with only a part of the block, which
+ * helps in case a block consists of dissimilar parts.
+ *
+ * The three parameters that can be specified for the functions are
+ * n, ov and P. n is the number of functions to add, ov is the overlap
+ * of the windows in case of partial_tukey and the overlap in the gaps
+ * in case of punchout_tukey. P is the fraction of the window that is
+ * tapered, like with a regular tukey window. The function can be
+ * specified with only a number, a number and an overlap, or a number
+ * an overlap and a P, for example, partial_tukey(3), partial_tukey(3/0.3)
+ * and partial_tukey(3/0.3/0.5) are all valid. ov should be smaller than 1
+ * and can be negative.
+ *
+ * subdivide_tukey(n) is a more efficient reimplementation of
+ * partial_tukey and punchout_tukey taken together, recycling as much data
+ * as possible. It combines all possible non-redundant partial_tukey(n)
+ * and punchout_tukey(n) up to the n specified. Specifying
+ * subdivide_tukey(3) is equivalent to specifying tukey, partial_tukey(2),
+ * partial_tukey(3) and punchout_tukey(3), specifying subdivide_tukey(5)
+ * equivalently adds partial_tukey(4), punchout_tukey(4), partial_tukey(5)
+ * and punchout_tukey(5). To be able to reuse data as much as possible,
+ * the tukey taper is taken equal for all windows, and the P specified is
+ * applied for the smallest used window. In other words,
+ * subdivide_tukey(2/0.5) results in a taper equal to that of tukey(0.25)
+ * and subdivide_tukey(5) in a taper equal to that of tukey(0.1). The
+ * default P for subdivide_tukey when none is specified is 0.5.
+ *
+ * Example specifications are \c "blackman" or
+ * \c "hann;triangle;tukey(0.5);tukey(0.25);tukey(0.125)"
+ *
+ * Any function that is specified erroneously is silently dropped.  Up
+ * to 32 functions are kept, the rest are dropped.  If the specification
+ * is empty the encoder defaults to \c "tukey(0.5)".
+ *
+ * When more than one function is specified, then for every subframe the
+ * encoder will try each of them separately and choose the window that
+ * results in the smallest compressed subframe.
+ *
+ * Note that each function specified causes the encoder to occupy a
+ * floating point array in which to store the window. Also note that the
+ * values of P, STDDEV and ov are locale-specific, so if the comma
+ * separator specified by the locale is a comma, a comma should be used.
+ * A locale-independent way is to specify using scientific notation,
+ * e.g. 5e-1 instad of 0.5 or 0,5.
+ *
+ * \default \c "tukey(0.5)"
+ * \param  encoder        An encoder instance to set.
+ * \param  specification  See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ *    \code specification != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_apodization(FLAC__StreamEncoder *encoder, const char *specification);
+
+/** Set the maximum LPC order, or \c 0 to use only the fixed predictors.
+ *
+ * \default \c 8
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_max_lpc_order(FLAC__StreamEncoder *encoder, uint32_t value);
+
+/** Set the precision, in bits, of the quantized linear predictor
+ *  coefficients, or \c 0 to let the encoder select it based on the
+ *  blocksize.
+ *
+ * \default \c 0
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_qlp_coeff_precision(FLAC__StreamEncoder *encoder, uint32_t value);
+
+/** Set to \c false to use only the specified quantized linear predictor
+ *  coefficient precision, or \c true to search neighboring precision
+ *  values and use the best one.
+ *
+ * \default \c false
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_do_qlp_coeff_prec_search(FLAC__StreamEncoder *encoder, FLAC__bool value);
+
+/** Deprecated.  Setting this value has no effect.
+ *
+ * \default \c false
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_do_escape_coding(FLAC__StreamEncoder *encoder, FLAC__bool value);
+
+/** Set to \c false to let the encoder estimate the best model order
+ *  based on the residual signal energy, or \c true to force the
+ *  encoder to evaluate all order models and select the best.
+ *
+ * \default \c false
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_do_exhaustive_model_search(FLAC__StreamEncoder *encoder, FLAC__bool value);
+
+/** Set the minimum partition order to search when coding the residual.
+ *  This is used in tandem with
+ *  FLAC__stream_encoder_set_max_residual_partition_order().
+ *
+ *  The partition order determines the context size in the residual.
+ *  The context size will be approximately <tt>blocksize / (2 ^ order)</tt>.
+ *
+ *  Set both min and max values to \c 0 to force a single context,
+ *  whose Rice parameter is based on the residual signal variance.
+ *  Otherwise, set a min and max order, and the encoder will search
+ *  all orders, using the mean of each context for its Rice parameter,
+ *  and use the best.
+ *
+ * \default \c 0
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_min_residual_partition_order(FLAC__StreamEncoder *encoder, uint32_t value);
+
+/** Set the maximum partition order to search when coding the residual.
+ *  This is used in tandem with
+ *  FLAC__stream_encoder_set_min_residual_partition_order().
+ *
+ *  The partition order determines the context size in the residual.
+ *  The context size will be approximately <tt>blocksize / (2 ^ order)</tt>.
+ *
+ *  Set both min and max values to \c 0 to force a single context,
+ *  whose Rice parameter is based on the residual signal variance.
+ *  Otherwise, set a min and max order, and the encoder will search
+ *  all orders, using the mean of each context for its Rice parameter,
+ *  and use the best.
+ *
+ * \default \c 5
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_max_residual_partition_order(FLAC__StreamEncoder *encoder, uint32_t value);
+
+/** Deprecated.  Setting this value has no effect.
+ *
+ * \default \c 0
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_rice_parameter_search_dist(FLAC__StreamEncoder *encoder, uint32_t value);
+
+/** Set an estimate of the total samples that will be encoded.
+ *  This is merely an estimate and may be set to \c 0 if unknown.
+ *  This value will be written to the STREAMINFO block before encoding,
+ *  and can remove the need for the caller to rewrite the value later
+ *  if the value is known before encoding.
+ *
+ * \default \c 0
+ * \param  encoder  An encoder instance to set.
+ * \param  value    See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_total_samples_estimate(FLAC__StreamEncoder *encoder, FLAC__uint64 value);
+
+/** Set the metadata blocks to be emitted to the stream before encoding.
+ *  A value of \c NULL, \c 0 implies no metadata; otherwise, supply an
+ *  array of pointers to metadata blocks.  The array is non-const since
+ *  the encoder may need to change the \a is_last flag inside them, and
+ *  in some cases update seek point offsets.  Otherwise, the encoder will
+ *  not modify or free the blocks.  It is up to the caller to free the
+ *  metadata blocks after encoding finishes.
+ *
+ * \note
+ * The encoder stores only copies of the pointers in the \a metadata array;
+ * the metadata blocks themselves must survive at least until after
+ * FLAC__stream_encoder_finish() returns.  Do not free the blocks until then.
+ *
+ * \note
+ * The STREAMINFO block is always written and no STREAMINFO block may
+ * occur in the supplied array.
+ *
+ * \note
+ * By default the encoder does not create a SEEKTABLE.  If one is supplied
+ * in the \a metadata array, but the client has specified that it does not
+ * support seeking, then the SEEKTABLE will be written verbatim.  However
+ * by itself this is not very useful as the client will not know the stream
+ * offsets for the seekpoints ahead of time.  In order to get a proper
+ * seektable the client must support seeking.  See next note.
+ *
+ * \note
+ * SEEKTABLE blocks are handled specially.  Since you will not know
+ * the values for the seek point stream offsets, you should pass in
+ * a SEEKTABLE 'template', that is, a SEEKTABLE object with the
+ * required sample numbers (or placeholder points), with \c 0 for the
+ * \a frame_samples and \a stream_offset fields for each point.  If the
+ * client has specified that it supports seeking by providing a seek
+ * callback to FLAC__stream_encoder_init_stream() or both seek AND read
+ * callback to FLAC__stream_encoder_init_ogg_stream() (or by using
+ * FLAC__stream_encoder_init*_file() or FLAC__stream_encoder_init*_FILE()),
+ * then while it is encoding the encoder will fill the stream offsets in
+ * for you and when encoding is finished, it will seek back and write the
+ * real values into the SEEKTABLE block in the stream.  There are helper
+ * routines for manipulating seektable template blocks; see metadata.h:
+ * FLAC__metadata_object_seektable_template_*().  If the client does
+ * not support seeking, the SEEKTABLE will have inaccurate offsets which
+ * will slow down or remove the ability to seek in the FLAC stream.
+ *
+ * \note
+ * The encoder instance \b will modify the first \c SEEKTABLE block
+ * as it transforms the template to a valid seektable while encoding,
+ * but it is still up to the caller to free all metadata blocks after
+ * encoding.
+ *
+ * \note
+ * A VORBIS_COMMENT block may be supplied.  The vendor string in it
+ * will be ignored.  libFLAC will use it's own vendor string. libFLAC
+ * will not modify the passed-in VORBIS_COMMENT's vendor string, it
+ * will simply write it's own into the stream.  If no VORBIS_COMMENT
+ * block is present in the \a metadata array, libFLAC will write an
+ * empty one, containing only the vendor string.
+ *
+ * \note The Ogg FLAC mapping requires that the VORBIS_COMMENT block be
+ * the second metadata block of the stream.  The encoder already supplies
+ * the STREAMINFO block automatically.  If \a metadata does not contain a
+ * VORBIS_COMMENT block, the encoder will supply that too.  Otherwise, if
+ * \a metadata does contain a VORBIS_COMMENT block and it is not the
+ * first, the init function will reorder \a metadata by moving the
+ * VORBIS_COMMENT block to the front; the relative ordering of the other
+ * blocks will remain as they were.
+ *
+ * \note The Ogg FLAC mapping limits the number of metadata blocks per
+ * stream to \c 65535.  If \a num_blocks exceeds this the function will
+ * return \c false.
+ *
+ * \default \c NULL, 0
+ * \param  encoder     An encoder instance to set.
+ * \param  metadata    See above.
+ * \param  num_blocks  See above.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ *    \c false if the encoder is already initialized, or if
+ *    \a num_blocks > 65535 if encoding to Ogg FLAC, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_metadata(FLAC__StreamEncoder *encoder, FLAC__StreamMetadata **metadata, uint32_t num_blocks);
+
+/** Set to \c true to make the encoder not output frames which contain
+ *  only constant subframes. This is beneficial for streaming
+ *  applications: very small frames can cause problems with buffering
+ *  as bitrates can drop as low 1kbit/s for CDDA audio encoded within
+ *  subset. The minimum bitrate for a FLAC file encoded with this
+ *  function used is raised to 1bit/sample (i.e. 48kbit/s for 48kHz
+ *  material).
+ *
+ * \default \c false
+ * \param  encoder  An encoder instance to set.
+ * \param  value    Flag value (see above).
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if the encoder is already initialized, else \c true.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_set_limit_min_bitrate(FLAC__StreamEncoder *encoder, FLAC__bool value);
+
+/** Get the current encoder state.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__StreamEncoderState
+ *    The current encoder state.
+ */
+FLAC_API FLAC__StreamEncoderState FLAC__stream_encoder_get_state(const FLAC__StreamEncoder *encoder);
+
+/** Get the state of the verify stream decoder.
+ *  Useful when the stream encoder state is
+ *  \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__StreamDecoderState
+ *    The verify stream decoder state.
+ */
+FLAC_API FLAC__StreamDecoderState FLAC__stream_encoder_get_verify_decoder_state(const FLAC__StreamEncoder *encoder);
+
+/** Get the current encoder state as a C string.
+ *  This version automatically resolves
+ *  \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR by getting the
+ *  verify decoder's state.
+ *
+ * \param  encoder  A encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval const char *
+ *    The encoder state as a C string.  Do not modify the contents.
+ */
+FLAC_API const char *FLAC__stream_encoder_get_resolved_state_string(const FLAC__StreamEncoder *encoder);
+
+/** Get relevant values about the nature of a verify decoder error.
+ *  Useful when the stream encoder state is
+ *  \c FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR.  The arguments should
+ *  be addresses in which the stats will be returned, or NULL if value
+ *  is not desired.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \param  absolute_sample  The absolute sample number of the mismatch.
+ * \param  frame_number  The number of the frame in which the mismatch occurred.
+ * \param  channel       The channel in which the mismatch occurred.
+ * \param  sample        The number of the sample (relative to the frame) in
+ *                       which the mismatch occurred.
+ * \param  expected      The expected value for the sample in question.
+ * \param  got           The actual value returned by the decoder.
+ * \assert
+ *    \code encoder != NULL \endcode
+ */
+FLAC_API void FLAC__stream_encoder_get_verify_decoder_error_stats(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_sample, uint32_t *frame_number, uint32_t *channel, uint32_t *sample, FLAC__int32 *expected, FLAC__int32 *got);
+
+/** Get the "verify" flag.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    See FLAC__stream_encoder_set_verify().
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_get_verify(const FLAC__StreamEncoder *encoder);
+
+/** Get the <A HREF="../format.html#subset>Subset</A> flag.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    See FLAC__stream_encoder_set_streamable_subset().
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_get_streamable_subset(const FLAC__StreamEncoder *encoder);
+
+/** Get the number of input channels being processed.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval uint32_t
+ *    See FLAC__stream_encoder_set_channels().
+ */
+FLAC_API uint32_t FLAC__stream_encoder_get_channels(const FLAC__StreamEncoder *encoder);
+
+/** Get the input sample resolution setting.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval uint32_t
+ *    See FLAC__stream_encoder_set_bits_per_sample().
+ */
+FLAC_API uint32_t FLAC__stream_encoder_get_bits_per_sample(const FLAC__StreamEncoder *encoder);
+
+/** Get the input sample rate setting.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval uint32_t
+ *    See FLAC__stream_encoder_set_sample_rate().
+ */
+FLAC_API uint32_t FLAC__stream_encoder_get_sample_rate(const FLAC__StreamEncoder *encoder);
+
+/** Get the blocksize setting.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval uint32_t
+ *    See FLAC__stream_encoder_set_blocksize().
+ */
+FLAC_API uint32_t FLAC__stream_encoder_get_blocksize(const FLAC__StreamEncoder *encoder);
+
+/** Get the "mid/side stereo coding" flag.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    See FLAC__stream_encoder_get_do_mid_side_stereo().
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_get_do_mid_side_stereo(const FLAC__StreamEncoder *encoder);
+
+/** Get the "adaptive mid/side switching" flag.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    See FLAC__stream_encoder_set_loose_mid_side_stereo().
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_get_loose_mid_side_stereo(const FLAC__StreamEncoder *encoder);
+
+/** Get the maximum LPC order setting.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval uint32_t
+ *    See FLAC__stream_encoder_set_max_lpc_order().
+ */
+FLAC_API uint32_t FLAC__stream_encoder_get_max_lpc_order(const FLAC__StreamEncoder *encoder);
+
+/** Get the quantized linear predictor coefficient precision setting.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval uint32_t
+ *    See FLAC__stream_encoder_set_qlp_coeff_precision().
+ */
+FLAC_API uint32_t FLAC__stream_encoder_get_qlp_coeff_precision(const FLAC__StreamEncoder *encoder);
+
+/** Get the qlp coefficient precision search flag.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    See FLAC__stream_encoder_set_do_qlp_coeff_prec_search().
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__StreamEncoder *encoder);
+
+/** Get the "escape coding" flag.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    See FLAC__stream_encoder_set_do_escape_coding().
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_get_do_escape_coding(const FLAC__StreamEncoder *encoder);
+
+/** Get the exhaustive model search flag.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    See FLAC__stream_encoder_set_do_exhaustive_model_search().
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_get_do_exhaustive_model_search(const FLAC__StreamEncoder *encoder);
+
+/** Get the minimum residual partition order setting.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval uint32_t
+ *    See FLAC__stream_encoder_set_min_residual_partition_order().
+ */
+FLAC_API uint32_t FLAC__stream_encoder_get_min_residual_partition_order(const FLAC__StreamEncoder *encoder);
+
+/** Get maximum residual partition order setting.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval uint32_t
+ *    See FLAC__stream_encoder_set_max_residual_partition_order().
+ */
+FLAC_API uint32_t FLAC__stream_encoder_get_max_residual_partition_order(const FLAC__StreamEncoder *encoder);
+
+/** Get the Rice parameter search distance setting.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval uint32_t
+ *    See FLAC__stream_encoder_set_rice_parameter_search_dist().
+ */
+FLAC_API uint32_t FLAC__stream_encoder_get_rice_parameter_search_dist(const FLAC__StreamEncoder *encoder);
+
+/** Get the previously set estimate of the total samples to be encoded.
+ *  The encoder merely mimics back the value given to
+ *  FLAC__stream_encoder_set_total_samples_estimate() since it has no
+ *  other way of knowing how many samples the client will encode.
+ *
+ * \param  encoder  An encoder instance to set.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__uint64
+ *    See FLAC__stream_encoder_get_total_samples_estimate().
+ */
+FLAC_API FLAC__uint64 FLAC__stream_encoder_get_total_samples_estimate(const FLAC__StreamEncoder *encoder);
+
+/** Get the "limit_min_bitrate" flag.
+ *
+ * \param  encoder  An encoder instance to query.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    See FLAC__stream_encoder_set_limit_min_bitrate().
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_get_limit_min_bitrate(const FLAC__StreamEncoder *encoder);
+
+/** Initialize the encoder instance to encode native FLAC streams.
+ *
+ *  This flavor of initialization sets up the encoder to encode to a
+ *  native FLAC stream. I/O is performed via callbacks to the client.
+ *  For encoding to a plain file via filename or open \c FILE*,
+ *  FLAC__stream_encoder_init_file() and FLAC__stream_encoder_init_FILE()
+ *  provide a simpler interface.
+ *
+ *  This function should be called after FLAC__stream_encoder_new() and
+ *  FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
+ *  or FLAC__stream_encoder_process_interleaved().
+ *  initialization succeeded.
+ *
+ *  The call to FLAC__stream_encoder_init_stream() currently will also
+ *  immediately call the write callback several times, once with the \c fLaC
+ *  signature, and once for each encoded metadata block.
+ *
+ * \param  encoder            An uninitialized encoder instance.
+ * \param  write_callback     See FLAC__StreamEncoderWriteCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  seek_callback      See FLAC__StreamEncoderSeekCallback.  This
+ *                            pointer may be \c NULL if seeking is not
+ *                            supported.  The encoder uses seeking to go back
+ *                            and write some some stream statistics to the
+ *                            STREAMINFO block; this is recommended but not
+ *                            necessary to create a valid FLAC stream.  If
+ *                            \a seek_callback is not \c NULL then a
+ *                            \a tell_callback must also be supplied.
+ *                            Alternatively, a dummy seek callback that just
+ *                            returns \c FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the encoder.
+ * \param  tell_callback      See FLAC__StreamEncoderTellCallback.  This
+ *                            pointer may be \c NULL if seeking is not
+ *                            supported.  If \a seek_callback is \c NULL then
+ *                            this argument will be ignored.  If
+ *                            \a seek_callback is not \c NULL then a
+ *                            \a tell_callback must also be supplied.
+ *                            Alternatively, a dummy tell callback that just
+ *                            returns \c FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the encoder.
+ * \param  metadata_callback  See FLAC__StreamEncoderMetadataCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.  If the client provides a seek callback,
+ *                            this function is not necessary as the encoder
+ *                            will automatically seek back and update the
+ *                            STREAMINFO block.  It may also be \c NULL if the
+ *                            client does not support seeking, since it will
+ *                            have no way of going back to update the
+ *                            STREAMINFO.  However the client can still supply
+ *                            a callback if it would like to know the details
+ *                            from the STREAMINFO.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__StreamEncoderInitStatus
+ *    \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamEncoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_stream(FLAC__StreamEncoder *encoder, FLAC__StreamEncoderWriteCallback write_callback, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderTellCallback tell_callback, FLAC__StreamEncoderMetadataCallback metadata_callback, void *client_data);
+
+/** Initialize the encoder instance to encode Ogg FLAC streams.
+ *
+ *  This flavor of initialization sets up the encoder to encode to a FLAC
+ *  stream in an Ogg container.  I/O is performed via callbacks to the
+ *  client.  For encoding to a plain file via filename or open \c FILE*,
+ *  FLAC__stream_encoder_init_ogg_file() and FLAC__stream_encoder_init_ogg_FILE()
+ *  provide a simpler interface.
+ *
+ *  This function should be called after FLAC__stream_encoder_new() and
+ *  FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
+ *  or FLAC__stream_encoder_process_interleaved().
+ *  initialization succeeded.
+ *
+ *  The call to FLAC__stream_encoder_init_ogg_stream() currently will also
+ *  immediately call the write callback several times to write the metadata
+ *  packets.
+ *
+ * \param  encoder            An uninitialized encoder instance.
+ * \param  read_callback      See FLAC__StreamEncoderReadCallback.  This
+ *                            pointer must not be \c NULL if \a seek_callback
+ *                            is non-NULL since they are both needed to be
+ *                            able to write data back to the Ogg FLAC stream
+ *                            in the post-encode phase.
+ * \param  write_callback     See FLAC__StreamEncoderWriteCallback.  This
+ *                            pointer must not be \c NULL.
+ * \param  seek_callback      See FLAC__StreamEncoderSeekCallback.  This
+ *                            pointer may be \c NULL if seeking is not
+ *                            supported.  The encoder uses seeking to go back
+ *                            and write some some stream statistics to the
+ *                            STREAMINFO block; this is recommended but not
+ *                            necessary to create a valid FLAC stream.  If
+ *                            \a seek_callback is not \c NULL then a
+ *                            \a tell_callback must also be supplied.
+ *                            Alternatively, a dummy seek callback that just
+ *                            returns \c FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the encoder.
+ * \param  tell_callback      See FLAC__StreamEncoderTellCallback.  This
+ *                            pointer may be \c NULL if seeking is not
+ *                            supported.  If \a seek_callback is \c NULL then
+ *                            this argument will be ignored.  If
+ *                            \a seek_callback is not \c NULL then a
+ *                            \a tell_callback must also be supplied.
+ *                            Alternatively, a dummy tell callback that just
+ *                            returns \c FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED
+ *                            may also be supplied, all though this is slightly
+ *                            less efficient for the encoder.
+ * \param  metadata_callback  See FLAC__StreamEncoderMetadataCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.  If the client provides a seek callback,
+ *                            this function is not necessary as the encoder
+ *                            will automatically seek back and update the
+ *                            STREAMINFO block.  It may also be \c NULL if the
+ *                            client does not support seeking, since it will
+ *                            have no way of going back to update the
+ *                            STREAMINFO.  However the client can still supply
+ *                            a callback if it would like to know the details
+ *                            from the STREAMINFO.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__StreamEncoderInitStatus
+ *    \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamEncoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_stream(FLAC__StreamEncoder *encoder, FLAC__StreamEncoderReadCallback read_callback, FLAC__StreamEncoderWriteCallback write_callback, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderTellCallback tell_callback, FLAC__StreamEncoderMetadataCallback metadata_callback, void *client_data);
+
+/** Initialize the encoder instance to encode native FLAC files.
+ *
+ *  This flavor of initialization sets up the encoder to encode to a
+ *  plain native FLAC file.  For non-stdio streams, you must use
+ *  FLAC__stream_encoder_init_stream() and provide callbacks for the I/O.
+ *
+ *  This function should be called after FLAC__stream_encoder_new() and
+ *  FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
+ *  or FLAC__stream_encoder_process_interleaved().
+ *  initialization succeeded.
+ *
+ * \param  encoder            An uninitialized encoder instance.
+ * \param  file               An open file.  The file should have been opened
+ *                            with mode \c "w+b" and rewound.  The file
+ *                            becomes owned by the encoder and should not be
+ *                            manipulated by the client while encoding.
+ *                            Unless \a file is \c stdout, it will be closed
+ *                            when FLAC__stream_encoder_finish() is called.
+ *                            Note however that a proper SEEKTABLE cannot be
+ *                            created when encoding to \c stdout since it is
+ *                            not seekable.
+ * \param  progress_callback  See FLAC__StreamEncoderProgressCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code encoder != NULL \endcode
+ *    \code file != NULL \endcode
+ * \retval FLAC__StreamEncoderInitStatus
+ *    \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamEncoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_FILE(FLAC__StreamEncoder *encoder, FILE *file, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
+
+/** Initialize the encoder instance to encode Ogg FLAC files.
+ *
+ *  This flavor of initialization sets up the encoder to encode to a
+ *  plain Ogg FLAC file.  For non-stdio streams, you must use
+ *  FLAC__stream_encoder_init_ogg_stream() and provide callbacks for the I/O.
+ *
+ *  This function should be called after FLAC__stream_encoder_new() and
+ *  FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
+ *  or FLAC__stream_encoder_process_interleaved().
+ *  initialization succeeded.
+ *
+ * \param  encoder            An uninitialized encoder instance.
+ * \param  file               An open file.  The file should have been opened
+ *                            with mode \c "w+b" and rewound.  The file
+ *                            becomes owned by the encoder and should not be
+ *                            manipulated by the client while encoding.
+ *                            Unless \a file is \c stdout, it will be closed
+ *                            when FLAC__stream_encoder_finish() is called.
+ *                            Note however that a proper SEEKTABLE cannot be
+ *                            created when encoding to \c stdout since it is
+ *                            not seekable.
+ * \param  progress_callback  See FLAC__StreamEncoderProgressCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code encoder != NULL \endcode
+ *    \code file != NULL \endcode
+ * \retval FLAC__StreamEncoderInitStatus
+ *    \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamEncoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_FILE(FLAC__StreamEncoder *encoder, FILE *file, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
+
+/** Initialize the encoder instance to encode native FLAC files.
+ *
+ *  This flavor of initialization sets up the encoder to encode to a plain
+ *  FLAC file.  If POSIX fopen() semantics are not sufficient you must use
+ *  FLAC__stream_encoder_init_FILE(), or FLAC__stream_encoder_init_stream()
+ *  and provide callbacks for the I/O.
+ *
+ *  On Windows, filename must be a UTF-8 encoded filename, which libFLAC
+ *  internally translates to an appropriate representation to use with
+ *  _wfopen. On all other systems, filename is passed to fopen without
+ *  any translation.
+ *
+ *  This function should be called after FLAC__stream_encoder_new() and
+ *  FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
+ *  or FLAC__stream_encoder_process_interleaved().
+ *  initialization succeeded.
+ *
+ * \param  encoder            An uninitialized encoder instance.
+ * \param  filename           The name of the file to encode to.  The file will
+ *                            be opened with fopen().  Use \c NULL to encode to
+ *                            \c stdout.  Note however that a proper SEEKTABLE
+ *                            cannot be created when encoding to \c stdout since
+ *                            it is not seekable.
+ * \param  progress_callback  See FLAC__StreamEncoderProgressCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__StreamEncoderInitStatus
+ *    \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamEncoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_file(FLAC__StreamEncoder *encoder, const char *filename, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
+
+/** Initialize the encoder instance to encode Ogg FLAC files.
+ *
+ *  This flavor of initialization sets up the encoder to encode to a plain
+ *  Ogg FLAC file.  If POSIX fopen() semantics are not sufficient, you must use
+ *  FLAC__stream_encoder_init_ogg_FILE(), or FLAC__stream_encoder_init_ogg_stream()
+ *  and provide callbacks for the I/O.
+ *
+ *  On Windows, filename must be a UTF-8 encoded filename, which libFLAC
+ *  internally translates to an appropriate representation to use with
+ *  _wfopen. On all other systems, filename is passed to fopen without
+ *  any translation.
+ *
+ *  This function should be called after FLAC__stream_encoder_new() and
+ *  FLAC__stream_encoder_set_*() but before FLAC__stream_encoder_process()
+ *  or FLAC__stream_encoder_process_interleaved().
+ *  initialization succeeded.
+ *
+ * \param  encoder            An uninitialized encoder instance.
+ * \param  filename           The name of the file to encode to.  The file will
+ *                            be opened with fopen().  Use \c NULL to encode to
+ *                            \c stdout.  Note however that a proper SEEKTABLE
+ *                            cannot be created when encoding to \c stdout since
+ *                            it is not seekable.
+ * \param  progress_callback  See FLAC__StreamEncoderProgressCallback.  This
+ *                            pointer may be \c NULL if the callback is not
+ *                            desired.
+ * \param  client_data        This value will be supplied to callbacks in their
+ *                            \a client_data argument.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__StreamEncoderInitStatus
+ *    \c FLAC__STREAM_ENCODER_INIT_STATUS_OK if initialization was successful;
+ *    see FLAC__StreamEncoderInitStatus for the meanings of other return values.
+ */
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_file(FLAC__StreamEncoder *encoder, const char *filename, FLAC__StreamEncoderProgressCallback progress_callback, void *client_data);
+
+/** Finish the encoding process.
+ *  Flushes the encoding buffer, releases resources, resets the encoder
+ *  settings to their defaults, and returns the encoder state to
+ *  FLAC__STREAM_ENCODER_UNINITIALIZED.  Note that this can generate
+ *  one or more write callbacks before returning, and will generate
+ *  a metadata callback.
+ *
+ *  Note that in the course of processing the last frame, errors can
+ *  occur, so the caller should be sure to check the return value to
+ *  ensure the file was encoded properly.
+ *
+ *  In the event of a prematurely-terminated encode, it is not strictly
+ *  necessary to call this immediately before FLAC__stream_encoder_delete()
+ *  but it is good practice to match every FLAC__stream_encoder_init_*()
+ *  with a FLAC__stream_encoder_finish().
+ *
+ * \param  encoder  An uninitialized encoder instance.
+ * \assert
+ *    \code encoder != NULL \endcode
+ * \retval FLAC__bool
+ *    \c false if an error occurred processing the last frame; or if verify
+ *    mode is set (see FLAC__stream_encoder_set_verify()), there was a
+ *    verify mismatch; else \c true.  If \c false, caller should check the
+ *    state with FLAC__stream_encoder_get_state() for more information
+ *    about the error.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_finish(FLAC__StreamEncoder *encoder);
+
+/** Submit data for encoding.
+ *  This version allows you to supply the input data via an array of
+ *  pointers, each pointer pointing to an array of \a samples samples
+ *  representing one channel.  The samples need not be block-aligned,
+ *  but each channel should have the same number of samples.  Each sample
+ *  should be a signed integer, right-justified to the resolution set by
+ *  FLAC__stream_encoder_set_bits_per_sample().  For example, if the
+ *  resolution is 16 bits per sample, the samples should all be in the
+ *  range [-32768,32767].
+ *
+ *  For applications where channel order is important, channels must
+ *  follow the order as described in the
+ *  <A HREF="../format.html#frame_header">frame header</A>.
+ *
+ * \param  encoder  An initialized encoder instance in the OK state.
+ * \param  buffer   An array of pointers to each channel's signal.
+ * \param  samples  The number of samples in one channel.
+ * \assert
+ *    \code encoder != NULL \endcode
+ *    \code FLAC__stream_encoder_get_state(encoder) == FLAC__STREAM_ENCODER_OK \endcode
+ * \retval FLAC__bool
+ *    \c true if successful, else \c false; in this case, check the
+ *    encoder state with FLAC__stream_encoder_get_state() to see what
+ *    went wrong.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC__int32 * const buffer[], uint32_t samples);
+
+/** Submit data for encoding.
+ *  This version allows you to supply the input data where the channels
+ *  are interleaved into a single array (i.e. channel0_sample0,
+ *  channel1_sample0, ... , channelN_sample0, channel0_sample1, ...).
+ *  The samples need not be block-aligned but they must be
+ *  sample-aligned, i.e. the first value should be channel0_sample0
+ *  and the last value channelN_sampleM.  Each sample should be a signed
+ *  integer, right-justified to the resolution set by
+ *  FLAC__stream_encoder_set_bits_per_sample().  For example, if the
+ *  resolution is 16 bits per sample, the samples should all be in the
+ *  range [-32768,32767].
+ *
+ *  For applications where channel order is important, channels must
+ *  follow the order as described in the
+ *  <A HREF="../format.html#frame_header">frame header</A>.
+ *
+ * \param  encoder  An initialized encoder instance in the OK state.
+ * \param  buffer   An array of channel-interleaved data (see above).
+ * \param  samples  The number of samples in one channel, the same as for
+ *                  FLAC__stream_encoder_process().  For example, if
+ *                  encoding two channels, \c 1000 \a samples corresponds
+ *                  to a \a buffer of 2000 values.
+ * \assert
+ *    \code encoder != NULL \endcode
+ *    \code FLAC__stream_encoder_get_state(encoder) == FLAC__STREAM_ENCODER_OK \endcode
+ * \retval FLAC__bool
+ *    \c true if successful, else \c false; in this case, check the
+ *    encoder state with FLAC__stream_encoder_get_state() to see what
+ *    went wrong.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder, const FLAC__int32 buffer[], uint32_t samples);
+
+/* \} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/share/alloc.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/alloc.h
new file mode 100644
index 00000000..0b40548e
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/alloc.h
@@ -0,0 +1,316 @@
+/* alloc - Convenience routines for safely allocating memory
+ * Copyright (C) 2007-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__SHARE__ALLOC_H
+#define FLAC__SHARE__ALLOC_H
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+/* WATCHOUT: for c++ you may have to #define __STDC_LIMIT_MACROS 1 real early
+ * before #including this file,  otherwise SIZE_MAX might not be defined
+ */
+
+#include <limits.h> /* for SIZE_MAX */
+#ifdef HAVE_STDINT_H
+#include <stdint.h> /* for SIZE_MAX in case limits.h didn't get it */
+#endif
+#include <stdlib.h> /* for size_t, malloc(), etc */
+#include "share/compat.h"
+
+#ifndef SIZE_MAX
+# ifndef SIZE_T_MAX
+#  ifdef _MSC_VER
+#   ifdef _WIN64
+#    define SIZE_T_MAX FLAC__U64L(0xffffffffffffffff)
+#   else
+#    define SIZE_T_MAX 0xffffffff
+#   endif
+#  else
+#   error
+#  endif
+# endif
+# define SIZE_MAX SIZE_T_MAX
+#endif
+
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+extern int alloc_check_threshold, alloc_check_counter;
+
+static inline int alloc_check() {
+	if(alloc_check_threshold == INT32_MAX)
+		return 0;
+	else if(alloc_check_counter++ == alloc_check_threshold)
+		return 1;
+	else
+		return 0;
+}
+
+#endif
+
+/* avoid malloc()ing 0 bytes, see:
+ * https://www.securecoding.cert.org/confluence/display/seccode/MEM04-A.+Do+not+make+assumptions+about+the+result+of+allocating+0+bytes?focusedCommentId=5407003
+*/
+
+static inline void *safe_malloc_(size_t size)
+{
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+	/* Fail if requested */
+	if(alloc_check())
+		return NULL;
+#endif
+	/* malloc(0) is undefined; FLAC src convention is to always allocate */
+	if(!size)
+		size++;
+	return malloc(size);
+}
+
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+static inline void *malloc_(size_t size)
+{
+	/* Fail if requested */
+	if(alloc_check())
+		return NULL;
+	return malloc(size);
+}
+#else
+#define malloc_ malloc
+#endif
+
+
+
+static inline void *safe_calloc_(size_t nmemb, size_t size)
+{
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+	/* Fail if requested */
+	if(alloc_check())
+		return NULL;
+#endif
+	if(!nmemb || !size)
+		return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
+	return calloc(nmemb, size);
+}
+
+/*@@@@ there's probably a better way to prevent overflows when allocating untrusted sums but this works for now */
+
+static inline void *safe_malloc_add_2op_(size_t size1, size_t size2)
+{
+	size2 += size1;
+	if(size2 < size1)
+		return 0;
+	return safe_malloc_(size2);
+}
+
+static inline void *safe_malloc_add_3op_(size_t size1, size_t size2, size_t size3)
+{
+	size2 += size1;
+	if(size2 < size1)
+		return 0;
+	size3 += size2;
+	if(size3 < size2)
+		return 0;
+	return safe_malloc_(size3);
+}
+
+static inline void *safe_malloc_add_4op_(size_t size1, size_t size2, size_t size3, size_t size4)
+{
+	size2 += size1;
+	if(size2 < size1)
+		return 0;
+	size3 += size2;
+	if(size3 < size2)
+		return 0;
+	size4 += size3;
+	if(size4 < size3)
+		return 0;
+	return safe_malloc_(size4);
+}
+
+void *safe_malloc_mul_2op_(size_t size1, size_t size2) ;
+
+static inline void *safe_malloc_mul_3op_(size_t size1, size_t size2, size_t size3)
+{
+	if(!size1 || !size2 || !size3)
+		return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
+	if(size1 > SIZE_MAX / size2)
+		return 0;
+	size1 *= size2;
+	if(size1 > SIZE_MAX / size3)
+		return 0;
+	return malloc_(size1*size3);
+}
+
+/* size1*size2 + size3 */
+static inline void *safe_malloc_mul2add_(size_t size1, size_t size2, size_t size3)
+{
+	if(!size1 || !size2)
+		return safe_malloc_(size3);
+	if(size1 > SIZE_MAX / size2)
+		return 0;
+	return safe_malloc_add_2op_(size1*size2, size3);
+}
+
+/* size1 * (size2 + size3) */
+static inline void *safe_malloc_muladd2_(size_t size1, size_t size2, size_t size3)
+{
+	if(!size1 || (!size2 && !size3))
+		return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
+	size2 += size3;
+	if(size2 < size3)
+		return 0;
+	if(size1 > SIZE_MAX / size2)
+		return 0;
+	return malloc_(size1*size2);
+}
+
+static inline void *safe_realloc_(void *ptr, size_t size)
+{
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+	/* Fail if requested */
+	if(alloc_check() && size > 0) {
+		free(ptr);
+		return NULL;
+	}
+#endif
+	void *oldptr = ptr;
+	void *newptr = realloc(ptr, size);
+	if(size > 0 && newptr == 0)
+		free(oldptr);
+	return newptr;
+}
+
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+static inline void *realloc_(void *ptr, size_t size)
+{
+	/* Fail if requested */
+	if(alloc_check())
+		return NULL;
+	return realloc(ptr, size);
+}
+#else
+#define realloc_ realloc
+#endif
+
+
+static inline void *safe_realloc_nofree_add_2op_(void *ptr, size_t size1, size_t size2)
+{
+	size2 += size1;
+	if(size2 < size1)
+		return 0;
+	return realloc_(ptr, size2);
+}
+
+static inline void *safe_realloc_add_3op_(void *ptr, size_t size1, size_t size2, size_t size3)
+{
+	size2 += size1;
+	if(size2 < size1) {
+		free(ptr);
+		return 0;
+	}
+	size3 += size2;
+	if(size3 < size2) {
+		free(ptr);
+		return 0;
+	}
+	return safe_realloc_(ptr, size3);
+}
+
+static inline void *safe_realloc_nofree_add_3op_(void *ptr, size_t size1, size_t size2, size_t size3)
+{
+	size2 += size1;
+	if(size2 < size1)
+		return 0;
+	size3 += size2;
+	if(size3 < size2)
+		return 0;
+	return realloc_(ptr, size3);
+}
+
+static inline void *safe_realloc_nofree_add_4op_(void *ptr, size_t size1, size_t size2, size_t size3, size_t size4)
+{
+	size2 += size1;
+	if(size2 < size1)
+		return 0;
+	size3 += size2;
+	if(size3 < size2)
+		return 0;
+	size4 += size3;
+	if(size4 < size3)
+		return 0;
+	return realloc_(ptr, size4);
+}
+
+static inline void *safe_realloc_mul_2op_(void *ptr, size_t size1, size_t size2)
+{
+	if(!size1 || !size2)
+		return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
+	if(size1 > SIZE_MAX / size2) {
+		free(ptr);
+		return 0;
+	}
+	return safe_realloc_(ptr, size1*size2);
+}
+
+static inline void *safe_realloc_nofree_mul_2op_(void *ptr, size_t size1, size_t size2)
+{
+	if(!size1 || !size2)
+		return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
+	if(size1 > SIZE_MAX / size2)
+		return 0;
+	return realloc_(ptr, size1*size2);
+}
+
+/* size1 * (size2 + size3) */
+static inline void *safe_realloc_muladd2_(void *ptr, size_t size1, size_t size2, size_t size3)
+{
+	if(!size1 || (!size2 && !size3))
+		return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
+	size2 += size3;
+	if(size2 < size3) {
+		free(ptr);
+		return 0;
+	}
+	return safe_realloc_mul_2op_(ptr, size1, size2);
+}
+
+/* size1 * (size2 + size3) */
+static inline void *safe_realloc_nofree_muladd2_(void *ptr, size_t size1, size_t size2, size_t size3)
+{
+	if(!size1 || (!size2 && !size3))
+		return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
+	size2 += size3;
+	if(size2 < size3)
+		return 0;
+	return safe_realloc_nofree_mul_2op_(ptr, size1, size2);
+}
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/share/compat.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/compat.h
new file mode 100644
index 00000000..9c8fb853
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/compat.h
@@ -0,0 +1,238 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2012-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* This is the preferred location of all CPP hackery to make $random_compiler
+ * work like something approaching a C99 (or maybe more accurately GNU99)
+ * compiler.
+ *
+ * It is assumed that this header will be included after "config.h".
+ */
+
+#ifndef FLAC__SHARE__COMPAT_H
+#define FLAC__SHARE__COMPAT_H
+
+#include <stddef.h>
+#include <stdarg.h>
+
+#if defined _WIN32 && !defined __CYGWIN__
+/* where MSVC puts unlink() */
+# include <io.h>
+#else
+# include <unistd.h>
+#endif
+
+#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__
+#include <sys/types.h> /* for off_t */
+#define FLAC__off_t __int64 /* use this instead of off_t to fix the 2 GB limit */
+#if !defined __MINGW32__
+#define fseeko _fseeki64
+#define ftello _ftelli64
+#else /* MinGW */
+#if !defined(HAVE_FSEEKO)
+#define fseeko fseeko64
+#define ftello ftello64
+#endif
+#endif
+#else
+#define FLAC__off_t off_t
+#endif
+
+#ifdef HAVE_INTTYPES_H
+#define __STDC_FORMAT_MACROS
+#include <inttypes.h>
+#endif
+
+#if defined(_MSC_VER)
+#define strtoll _strtoi64
+#define strtoull _strtoui64
+#endif
+
+#if defined(_MSC_VER) && !defined(__cplusplus)
+#define inline __inline
+#endif
+
+#if defined __INTEL_COMPILER || (defined _MSC_VER && defined _WIN64)
+/* MSVS generates VERY slow 32-bit code with __restrict */
+#define flac_restrict __restrict
+#elif defined __GNUC__
+#define flac_restrict __restrict__
+#else
+#define flac_restrict
+#endif
+
+#define FLAC__U64L(x) x##ULL
+
+#if defined _MSC_VER || defined __MINGW32__
+#define FLAC__STRCASECMP _stricmp
+#define FLAC__STRNCASECMP _strnicmp
+#elif defined __BORLANDC__
+#define FLAC__STRCASECMP stricmp
+#define FLAC__STRNCASECMP strnicmp
+#else
+#define FLAC__STRCASECMP strcasecmp
+#define FLAC__STRNCASECMP strncasecmp
+#endif
+
+#if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
+#include <io.h> /* for _setmode(), chmod() */
+#include <fcntl.h> /* for _O_BINARY */
+#else
+#include <unistd.h> /* for chown(), unlink() */
+#endif
+
+#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__
+#if defined __BORLANDC__
+#include <utime.h> /* for utime() */
+#else
+#include <sys/utime.h> /* for utime() */
+#endif
+#else
+#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200809L)
+#include <fcntl.h>
+#else
+#include <sys/types.h> /* some flavors of BSD (like OS X) require this to get time_t */
+#include <utime.h> /* for utime() */
+#endif
+#endif
+
+#if defined _MSC_VER
+#  if _MSC_VER >= 1800
+#    include <inttypes.h>
+#  elif _MSC_VER >= 1600
+/* Visual Studio 2010 has decent C99 support */
+#    include <stdint.h>
+#    define PRIu64 "llu"
+#    define PRId64 "lld"
+#    define PRIx64 "llx"
+#  else
+#    include <limits.h>
+#    ifndef UINT32_MAX
+#      define UINT32_MAX _UI32_MAX
+#    endif
+#    define PRIu64 "I64u"
+#    define PRId64 "I64d"
+#    define PRIx64 "I64x"
+#  endif
+#  if defined(_USING_V110_SDK71_) && !defined(_DLL)
+#if 0 /* OpenMPT */
+#    pragma message("WARNING: This compile will NOT FUNCTION PROPERLY on Windows XP. See comments in include/share/compat.h for details")
+#endif /* OpenMPT */
+#define FLAC__USE_FILELENGTHI64
+/*
+ *************************************************************************************
+ * V110_SDK71, in MSVC 2017 also known as v141_xp, is a platform toolset that is supposed
+ * to target Windows XP. It turns out however that certain functions provided silently fail
+ * on Windows XP only, which makes debugging challenging. This only occurs when building with
+ * /MT. This problem has been reported to Microsoft, but there hasn't been a fix for years. See
+ * https://web.archive.org/web/20170327195018/https://connect.microsoft.com/VisualStudio/feedback/details/1557168/wstat64-returns-1-on-xp-always
+ *
+ * It is known that this problem affects the functions _wstat64 (used by flac_stat i.e.
+ * stat64_utf8) and _fstat64 (i.e. flac_fstat) and therefore affects both libFLAC in
+ * several places as well as the flac and metaflac command line tools
+ *
+ * As the extent of this problem is unknown and Microsoft seems unwilling to fix it,
+ * users of libFLAC building with Visual Studio are encouraged to not use the /MT compile
+ * switch when explicitly targeting Windows XP. When use of /MT is deemed necessary with
+ * this toolset, be sure to check whether your application works properly on Windows XP.
+ * It is also possible to build for Windows XP with MinGW instead.
+ *************************************************************************************
+*/
+#  endif
+#endif /* defined _MSC_VER */
+
+#ifdef _WIN32
+/* All char* strings are in UTF-8 format. Added to support Unicode files on Windows */
+
+#include "share/win_utf8_io.h"
+#define flac_printf printf_utf8
+#define flac_fprintf fprintf_utf8
+#define flac_vfprintf vfprintf_utf8
+#define flac_fopen fopen_utf8
+#define flac_chmod chmod_utf8
+#define flac_utime utime_utf8
+#define flac_unlink unlink_utf8
+#define flac_rename rename_utf8
+#define flac_stat stat64_utf8
+
+#else
+
+#define flac_printf printf
+#define flac_fprintf fprintf
+#define flac_vfprintf vfprintf
+
+#define flac_fopen fopen
+#define flac_chmod chmod
+#define flac_unlink unlink
+#define flac_rename rename
+#define flac_stat stat
+
+#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200809L)
+#define flac_utime(a, b) utimensat (AT_FDCWD, a, *b, 0)
+#else
+#define flac_utime utime
+#endif
+#endif
+
+#ifdef _WIN32
+#define flac_stat_s __stat64 /* stat struct */
+#define flac_fstat _fstat64
+#else
+#define flac_stat_s stat /* stat struct */
+#define flac_fstat fstat
+#endif
+
+#ifdef ANDROID
+#include <limits.h>
+#endif
+
+#ifndef M_LN2
+#define M_LN2 0.69314718055994530942
+#endif
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
+/* FLAC needs to compile and work correctly on systems with a normal ISO C99
+ * snprintf as well as Microsoft Visual Studio which has an non-standards
+ * conformant snprint_s function.
+ *
+ * This function wraps the MS version to behave more like the ISO version.
+ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+int flac_snprintf(char *str, size_t size, const char *fmt, ...);
+int flac_vsnprintf(char *str, size_t size, const char *fmt, va_list va);
+#ifdef __cplusplus
+};
+#endif
+
+#endif /* FLAC__SHARE__COMPAT_H */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/share/endswap.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/endswap.h
new file mode 100644
index 00000000..35ffc62e
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/endswap.h
@@ -0,0 +1,84 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2012-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* It is assumed that this header will be included after "config.h". */
+
+#ifdef HAVE_BSWAP32			/* GCC and Clang */
+
+/* GCC prior to 4.8 didn't provide bswap16 on x86_64 */
+#ifndef HAVE_BSWAP16
+static inline unsigned short __builtin_bswap16(unsigned short a)
+{
+	return (a<<8)|(a>>8);
+}
+#endif
+
+#define	ENDSWAP_16(x)		(__builtin_bswap16 (x))
+#define	ENDSWAP_32(x)		(__builtin_bswap32 (x))
+#define	ENDSWAP_64(x)		(__builtin_bswap64 (x))
+
+#elif defined _MSC_VER		/* Windows */
+
+#include <stdlib.h>
+
+#define	ENDSWAP_16(x)		(_byteswap_ushort (x))
+#define	ENDSWAP_32(x)		(_byteswap_ulong (x))
+#define	ENDSWAP_64(x)		(_byteswap_uint64 (x))
+
+#elif defined HAVE_BYTESWAP_H		/* Linux */
+
+#include <byteswap.h>
+
+#define	ENDSWAP_16(x)		(bswap_16 (x))
+#define	ENDSWAP_32(x)		(bswap_32 (x))
+#define	ENDSWAP_64(x)		(bswap_64 (x))
+
+#else
+
+#define	ENDSWAP_16(x)		((((x) >> 8) & 0xFF) | (((x) & 0xFF) << 8))
+#define	ENDSWAP_32(x)		((((x) >> 24) & 0xFF) | (((x) >> 8) & 0xFF00) | (((x) & 0xFF00) << 8) | (((x) & 0xFF) << 24))
+#define	ENDSWAP_64(x)		((ENDSWAP_32(((x) >> 32) & 0xFFFFFFFF)) | (ENDSWAP_32((x) & 0xFFFFFFFF) << 32))
+
+#endif
+
+
+/* Host to little-endian byte swapping (for MD5 calculation) */
+#if CPU_IS_BIG_ENDIAN
+
+#define H2LE_16(x)		ENDSWAP_16 (x)
+#define H2LE_32(x)		ENDSWAP_32 (x)
+
+#else
+
+#define H2LE_16(x)		(x)
+#define H2LE_32(x)		(x)
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/share/macros.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/macros.h
new file mode 100644
index 00000000..d7f88feb
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/macros.h
@@ -0,0 +1,45 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2013-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <errno.h>
+
+/* FLAC_CHECK_RETURN : Check the return value of the provided function and
+ * print an error message if it fails (ie returns a value < 0).
+ *
+ * Ideally, a library should not print anything, but this macro is only used
+ * for things that extremely unlikely to fail, like `chown` to a previoulsy
+ * saved `uid`.
+ */
+
+#define FLAC_CHECK_RETURN(x) \
+			{	if ((x) < 0) \
+					fprintf (stderr, "%s : %s\n", #x, strerror (errno)) ; \
+			}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/share/private.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/private.h
new file mode 100644
index 00000000..a18566fb
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/private.h
@@ -0,0 +1,46 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2013-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__SHARE__PRIVATE_H
+#define FLAC__SHARE__PRIVATE_H
+
+/*
+ * Unpublished debug routines from libFLAC. This should not be used from any
+ * client code other than code shipped with the FLAC sources.
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_disable_instruction_set(FLAC__StreamEncoder *encoder, FLAC__bool value);
+FLAC_API FLAC__bool FLAC__stream_encoder_disable_constant_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value);
+FLAC_API FLAC__bool FLAC__stream_encoder_disable_fixed_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value);
+FLAC_API FLAC__bool FLAC__stream_encoder_disable_verbatim_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value);
+FLAC_API FLAC__bool FLAC__stream_encoder_set_do_md5(FLAC__StreamEncoder *encoder, FLAC__bool value);
+FLAC_API FLAC__bool FLAC__stream_encoder_get_do_md5(const FLAC__StreamEncoder *encoder);
+
+#endif /* FLAC__SHARE__PRIVATE_H */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/share/safe_str.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/safe_str.h
new file mode 100644
index 00000000..f52472ea
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/safe_str.h
@@ -0,0 +1,71 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2013-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* Safe string handling functions to replace things like strcpy, strncpy,
+ * strcat, strncat etc.
+ * All of these functions guarantee a correctly NUL terminated string but
+ * the string may be truncated if the destination buffer was too short.
+ */
+
+#ifndef FLAC__SHARE_SAFE_STR_H
+#define FLAC__SHARE_SAFE_STR_H
+
+static inline char *
+safe_strncat(char *dest, const char *src, size_t dest_size)
+{
+	char * ret;
+
+	if (dest_size < 1)
+		return dest;
+
+	/* Assume dist has space for a term character .. */
+	ret = strncat(dest, src, dest_size - strlen (dest));
+	/* .. but set it explicitly. */
+	dest [dest_size - 1] = 0;
+
+	return ret;
+}
+
+static inline char *
+safe_strncpy(char *dest, const char *src, size_t dest_size)
+{
+	char * ret;
+
+	if (dest_size < 1)
+		return dest;
+
+	ret = strncpy(dest, src, dest_size - 1);
+	dest [dest_size - 1] = 0;
+
+	return ret;
+}
+
+#endif /* FLAC__SHARE_SAFE_STR_H */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/share/win_utf8_io.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/win_utf8_io.h
new file mode 100644
index 00000000..61b8ca3f
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/win_utf8_io.h
@@ -0,0 +1,71 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2013-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef _WIN32
+
+#ifndef flac__win_utf8_io_h
+#define flac__win_utf8_io_h
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <sys/stat.h>
+#include <sys/utime.h>
+#include "FLAC/ordinals.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+size_t strlen_utf8(const char *str);
+int win_get_console_width(void);
+
+int get_utf8_argv(int *argc, char ***argv);
+
+int printf_utf8(const char *format, ...);
+int fprintf_utf8(FILE *stream, const char *format, ...);
+int vfprintf_utf8(FILE *stream, const char *format, va_list argptr);
+
+FILE* fopen_utf8(const char *filename, const char *mode);
+int stat64_utf8(const char *path, struct __stat64 *buffer);
+int chmod_utf8(const char *filename, int pmode);
+int utime_utf8(const char *filename, struct utimbuf *times);
+int unlink_utf8(const char *filename);
+int rename_utf8(const char *oldname, const char *newname);
+
+#include <windows.h>
+HANDLE WINAPI CreateFile_utf8(const char *lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/include/share/windows_unicode_filenames.h b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/windows_unicode_filenames.h
new file mode 100644
index 00000000..94cbeb6c
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/include/share/windows_unicode_filenames.h
@@ -0,0 +1,66 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2013-2016  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef _WIN32
+
+#ifndef flac__windows_unicode_filenames_h
+#define flac__windows_unicode_filenames_h
+
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/utime.h>
+#include "FLAC/ordinals.h"
+
+/***** FIXME: KLUDGE: export these syms for flac.exe, metaflac.exe, etc. *****/
+#include "FLAC/export.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+FLAC_API void flac_internal_set_utf8_filenames(FLAC__bool flag);
+FLAC_API FLAC__bool flac_internal_get_utf8_filenames(void);
+#define flac_set_utf8_filenames flac_internal_set_utf8_filenames
+#define flac_get_utf8_filenames flac_internal_get_utf8_filenames
+
+FLAC_API FILE* flac_internal_fopen_utf8(const char *filename, const char *mode);
+FLAC_API int flac_internal_stat64_utf8(const char *path, struct __stat64 *buffer);
+FLAC_API int flac_internal_chmod_utf8(const char *filename, int pmode);
+FLAC_API int flac_internal_utime_utf8(const char *filename, struct utimbuf *times);
+FLAC_API int flac_internal_unlink_utf8(const char *filename);
+FLAC_API int flac_internal_rename_utf8(const char *oldname, const char *newname);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/bitmath.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/bitmath.c
new file mode 100644
index 00000000..7c73cc05
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/bitmath.c
@@ -0,0 +1,73 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/bitmath.h"
+
+/* An example of what FLAC__bitmath_silog2() computes:
+ *
+ * silog2(-10) = 5
+ * silog2(- 9) = 5
+ * silog2(- 8) = 4
+ * silog2(- 7) = 4
+ * silog2(- 6) = 4
+ * silog2(- 5) = 4
+ * silog2(- 4) = 3
+ * silog2(- 3) = 3
+ * silog2(- 2) = 2
+ * silog2(- 1) = 2
+ * silog2(  0) = 0
+ * silog2(  1) = 2
+ * silog2(  2) = 3
+ * silog2(  3) = 3
+ * silog2(  4) = 4
+ * silog2(  5) = 4
+ * silog2(  6) = 4
+ * silog2(  7) = 4
+ * silog2(  8) = 5
+ * silog2(  9) = 5
+ * silog2( 10) = 5
+ */
+uint32_t FLAC__bitmath_silog2(FLAC__int64 v)
+{
+	if(v == 0)
+		return 0;
+
+	if(v == -1)
+		return 2;
+
+	v = (v < 0) ? (-(v+1)) : v;
+	return FLAC__bitmath_ilog2_wide(v)+2;
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/bitreader.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/bitreader.c
new file mode 100644
index 00000000..9a8a5f02
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/bitreader.c
@@ -0,0 +1,1217 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include "private/bitmath.h"
+#include "private/bitreader.h"
+#include "private/crc.h"
+#include "private/macros.h"
+#include "FLAC/assert.h"
+#include "share/compat.h"
+#include "share/endswap.h"
+
+/* Things should be fastest when this matches the machine word size */
+/* WATCHOUT: if you change this you must also change the following #defines down to COUNT_ZERO_MSBS2 below to match */
+/* WATCHOUT: there are a few places where the code will not work unless brword is >= 32 bits wide */
+/*           also, some sections currently only have fast versions for 4 or 8 bytes per word */
+
+#if (ENABLE_64_BIT_WORDS == 0)
+
+typedef FLAC__uint32 brword;
+#define FLAC__BYTES_PER_WORD 4		/* sizeof brword */
+#define FLAC__BITS_PER_WORD 32
+#define FLAC__WORD_ALL_ONES ((FLAC__uint32)0xffffffff)
+/* SWAP_BE_WORD_TO_HOST swaps bytes in a brword (which is always big-endian) if necessary to match host byte order */
+#if WORDS_BIGENDIAN
+#define SWAP_BE_WORD_TO_HOST(x) (x)
+#else
+#define SWAP_BE_WORD_TO_HOST(x) ENDSWAP_32(x)
+#endif
+/* counts the # of zero MSBs in a word */
+#define COUNT_ZERO_MSBS(word) FLAC__clz_uint32(word)
+#define COUNT_ZERO_MSBS2(word) FLAC__clz2_uint32(word)
+
+#else
+
+typedef FLAC__uint64 brword;
+#define FLAC__BYTES_PER_WORD 8		/* sizeof brword */
+#define FLAC__BITS_PER_WORD 64
+#define FLAC__WORD_ALL_ONES ((FLAC__uint64)FLAC__U64L(0xffffffffffffffff))
+/* SWAP_BE_WORD_TO_HOST swaps bytes in a brword (which is always big-endian) if necessary to match host byte order */
+#if WORDS_BIGENDIAN
+#define SWAP_BE_WORD_TO_HOST(x) (x)
+#else
+#define SWAP_BE_WORD_TO_HOST(x) ENDSWAP_64(x)
+#endif
+/* counts the # of zero MSBs in a word */
+#define COUNT_ZERO_MSBS(word) FLAC__clz_uint64(word)
+#define COUNT_ZERO_MSBS2(word) FLAC__clz2_uint64(word)
+
+#endif
+
+/*
+ * This should be at least twice as large as the largest number of words
+ * required to represent any 'number' (in any encoding) you are going to
+ * read.  With FLAC this is on the order of maybe a few hundred bits.
+ * If the buffer is smaller than that, the decoder won't be able to read
+ * in a whole number that is in a variable length encoding (e.g. Rice).
+ * But to be practical it should be at least 1K bytes.
+ *
+ * Increase this number to decrease the number of read callbacks, at the
+ * expense of using more memory.  Or decrease for the reverse effect,
+ * keeping in mind the limit from the first paragraph.  The optimal size
+ * also depends on the CPU cache size and other factors; some twiddling
+ * may be necessary to squeeze out the best performance.
+ */
+static const uint32_t FLAC__BITREADER_DEFAULT_CAPACITY = 65536u / FLAC__BITS_PER_WORD; /* in words */
+
+struct FLAC__BitReader {
+	/* any partially-consumed word at the head will stay right-justified as bits are consumed from the left */
+	/* any incomplete word at the tail will be left-justified, and bytes from the read callback are added on the right */
+	brword *buffer;
+	uint32_t capacity; /* in words */
+	uint32_t words; /* # of completed words in buffer */
+	uint32_t bytes; /* # of bytes in incomplete word at buffer[words] */
+	uint32_t consumed_words; /* #words ... */
+	uint32_t consumed_bits; /* ... + (#bits of head word) already consumed from the front of buffer */
+	uint32_t read_crc16; /* the running frame CRC */
+	uint32_t crc16_offset; /* the number of words in the current buffer that should not be CRC'd */
+	uint32_t crc16_align; /* the number of bits in the current consumed word that should not be CRC'd */
+	FLAC__bool read_limit_set; /* whether reads are limited */
+	uint32_t read_limit; /* the remaining size of what can be read */
+	uint32_t last_seen_framesync; /* the location of the last seen framesync, if it is in the buffer, in bits from front of buffer */
+	FLAC__BitReaderReadCallback read_callback;
+	void *client_data;
+};
+
+static inline void crc16_update_word_(FLAC__BitReader *br, brword word)
+{
+	register uint32_t crc = br->read_crc16;
+
+	for ( ; br->crc16_align < FLAC__BITS_PER_WORD ; br->crc16_align += 8) {
+		uint32_t shift = FLAC__BITS_PER_WORD - 8 - br->crc16_align ;
+		crc = FLAC__CRC16_UPDATE ((uint32_t) (shift < FLAC__BITS_PER_WORD ? (word >> shift) & 0xff : 0), crc);
+	}
+
+	br->read_crc16 = crc;
+	br->crc16_align = 0;
+}
+
+static inline void crc16_update_block_(FLAC__BitReader *br)
+{
+	if(br->consumed_words > br->crc16_offset && br->crc16_align)
+		crc16_update_word_(br, br->buffer[br->crc16_offset++]);
+
+	/* Prevent OOB read due to wrap-around. */
+	if (br->consumed_words > br->crc16_offset) {
+#if FLAC__BYTES_PER_WORD == 4
+		br->read_crc16 = FLAC__crc16_update_words32(br->buffer + br->crc16_offset, br->consumed_words - br->crc16_offset, br->read_crc16);
+#elif FLAC__BYTES_PER_WORD == 8
+		br->read_crc16 = FLAC__crc16_update_words64(br->buffer + br->crc16_offset, br->consumed_words - br->crc16_offset, br->read_crc16);
+#else
+		unsigned i;
+
+		for (i = br->crc16_offset; i < br->consumed_words; i++)
+			crc16_update_word_(br, br->buffer[i]);
+#endif
+	}
+
+	br->crc16_offset = 0;
+}
+
+static FLAC__bool bitreader_read_from_client_(FLAC__BitReader *br)
+{
+	uint32_t start, end;
+	size_t bytes;
+	FLAC__byte *target;
+#if WORDS_BIGENDIAN
+#else
+	brword preswap_backup;
+#endif
+
+	/* invalidate last seen framesync */
+	br->last_seen_framesync = -1;
+
+	/* first shift the unconsumed buffer data toward the front as much as possible */
+	if(br->consumed_words > 0) {
+		crc16_update_block_(br); /* CRC consumed words */
+
+		start = br->consumed_words;
+		end = br->words + (br->bytes? 1:0);
+		memmove(br->buffer, br->buffer+start, FLAC__BYTES_PER_WORD * (end - start));
+
+		br->words -= start;
+		br->consumed_words = 0;
+	}
+
+	/*
+	 * set the target for reading, taking into account word alignment and endianness
+	 */
+	bytes = (br->capacity - br->words) * FLAC__BYTES_PER_WORD - br->bytes;
+	if(bytes == 0)
+		return false; /* no space left, buffer is too small; see note for FLAC__BITREADER_DEFAULT_CAPACITY  */
+	target = ((FLAC__byte*)(br->buffer+br->words)) + br->bytes;
+
+	/* before reading, if the existing reader looks like this (say brword is 32 bits wide)
+	 *   bitstream :  11 22 33 44 55            br->words=1 br->bytes=1 (partial tail word is left-justified)
+	 *   buffer[BE]:  11 22 33 44 55 ?? ?? ??   (shown laid out as bytes sequentially in memory)
+	 *   buffer[LE]:  44 33 22 11 ?? ?? ?? 55   (?? being don't-care)
+	 *                               ^^-------target, bytes=3
+	 * on LE machines, have to byteswap the odd tail word so nothing is
+	 * overwritten:
+	 */
+#if WORDS_BIGENDIAN
+#else
+	preswap_backup = br->buffer[br->words];
+	if(br->bytes)
+		br->buffer[br->words] = SWAP_BE_WORD_TO_HOST(br->buffer[br->words]);
+#endif
+
+	/* now it looks like:
+	 *   bitstream :  11 22 33 44 55            br->words=1 br->bytes=1
+	 *   buffer[BE]:  11 22 33 44 55 ?? ?? ??
+	 *   buffer[LE]:  44 33 22 11 55 ?? ?? ??
+	 *                               ^^-------target, bytes=3
+	 */
+
+	/* read in the data; note that the callback may return a smaller number of bytes */
+	if(!br->read_callback(target, &bytes, br->client_data)){
+		/* Despite the read callback failing, the data in the target
+		 * might be used later, when the buffer is rewound. Therefore
+		 * we revert the swap that was just done */
+#if WORDS_BIGENDIAN
+#else
+		br->buffer[br->words] = preswap_backup;
+#endif
+		return false;
+	}
+
+	/* after reading bytes 66 77 88 99 AA BB CC DD EE FF from the client:
+	 *   bitstream :  11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF
+	 *   buffer[BE]:  11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF ??
+	 *   buffer[LE]:  44 33 22 11 55 66 77 88 99 AA BB CC DD EE FF ??
+	 * now have to byteswap on LE machines:
+	 */
+#if WORDS_BIGENDIAN
+#else
+	end = (br->words*FLAC__BYTES_PER_WORD + br->bytes + (uint32_t)bytes + (FLAC__BYTES_PER_WORD-1)) / FLAC__BYTES_PER_WORD;
+	for(start = br->words; start < end; start++)
+		br->buffer[start] = SWAP_BE_WORD_TO_HOST(br->buffer[start]);
+#endif
+
+	/* now it looks like:
+	 *   bitstream :  11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF
+	 *   buffer[BE]:  11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF ??
+	 *   buffer[LE]:  44 33 22 11 88 77 66 55 CC BB AA 99 ?? FF EE DD
+	 * finally we'll update the reader values:
+	 */
+	end = br->words*FLAC__BYTES_PER_WORD + br->bytes + (uint32_t)bytes;
+	br->words = end / FLAC__BYTES_PER_WORD;
+	br->bytes = end % FLAC__BYTES_PER_WORD;
+
+	return true;
+}
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+
+FLAC__BitReader *FLAC__bitreader_new(void)
+{
+	FLAC__BitReader *br = calloc(1, sizeof(FLAC__BitReader));
+
+	/* calloc() implies:
+		memset(br, 0, sizeof(FLAC__BitReader));
+		br->buffer = 0;
+		br->capacity = 0;
+		br->words = br->bytes = 0;
+		br->consumed_words = br->consumed_bits = 0;
+		br->read_callback = 0;
+		br->client_data = 0;
+	*/
+	return br;
+}
+
+void FLAC__bitreader_delete(FLAC__BitReader *br)
+{
+	FLAC__ASSERT(0 != br);
+
+	FLAC__bitreader_free(br);
+	free(br);
+}
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__bool FLAC__bitreader_init(FLAC__BitReader *br, FLAC__BitReaderReadCallback rcb, void *cd)
+{
+	FLAC__ASSERT(0 != br);
+
+	br->words = br->bytes = 0;
+	br->consumed_words = br->consumed_bits = 0;
+	br->capacity = FLAC__BITREADER_DEFAULT_CAPACITY;
+	br->buffer = malloc(sizeof(brword) * br->capacity);
+	if(br->buffer == 0)
+		return false;
+	br->read_callback = rcb;
+	br->client_data = cd;
+	br->read_limit_set = false;
+	br->read_limit = -1;
+	br->last_seen_framesync = -1;
+
+	return true;
+}
+
+void FLAC__bitreader_free(FLAC__BitReader *br)
+{
+	FLAC__ASSERT(0 != br);
+
+	if(0 != br->buffer)
+		free(br->buffer);
+	br->buffer = 0;
+	br->capacity = 0;
+	br->words = br->bytes = 0;
+	br->consumed_words = br->consumed_bits = 0;
+	br->read_callback = 0;
+	br->client_data = 0;
+	br->read_limit_set = false;
+	br->read_limit = -1;
+	br->last_seen_framesync = -1;
+}
+
+FLAC__bool FLAC__bitreader_clear(FLAC__BitReader *br)
+{
+	br->words = br->bytes = 0;
+	br->consumed_words = br->consumed_bits = 0;
+	br->read_limit_set = false;
+	br->read_limit = -1;
+	br->last_seen_framesync = -1;
+	return true;
+}
+
+void FLAC__bitreader_set_framesync_location(FLAC__BitReader *br)
+{
+	br->last_seen_framesync = br->consumed_words * FLAC__BYTES_PER_WORD + br->consumed_bits / 8;
+}
+
+FLAC__bool FLAC__bitreader_rewind_to_after_last_seen_framesync(FLAC__BitReader *br)
+{
+	if(br->last_seen_framesync == (uint32_t)-1) {
+		br->consumed_words = br->consumed_bits = 0;
+		return false;
+	}
+	else {
+		br->consumed_words = (br->last_seen_framesync + 1) / FLAC__BYTES_PER_WORD;
+		br->consumed_bits  = ((br->last_seen_framesync + 1) % FLAC__BYTES_PER_WORD) * 8;
+		return true;
+	}
+}
+
+void FLAC__bitreader_dump(const FLAC__BitReader *br, FILE *out)
+{
+	uint32_t i, j;
+	if(br == 0) {
+		fprintf(out, "bitreader is NULL\n");
+	}
+	else {
+		fprintf(out, "bitreader: capacity=%u words=%u bytes=%u consumed: words=%u, bits=%u\n", br->capacity, br->words, br->bytes, br->consumed_words, br->consumed_bits);
+
+		for(i = 0; i < br->words; i++) {
+			fprintf(out, "%08X: ", i);
+			for(j = 0; j < FLAC__BITS_PER_WORD; j++)
+				if(i < br->consumed_words || (i == br->consumed_words && j < br->consumed_bits))
+					fprintf(out, ".");
+				else
+					fprintf(out, "%01d", br->buffer[i] & ((brword)1 << (FLAC__BITS_PER_WORD-j-1)) ? 1:0);
+			fprintf(out, "\n");
+		}
+		if(br->bytes > 0) {
+			fprintf(out, "%08X: ", i);
+			for(j = 0; j < br->bytes*8; j++)
+				if(i < br->consumed_words || (i == br->consumed_words && j < br->consumed_bits))
+					fprintf(out, ".");
+				else
+					fprintf(out, "%01d", br->buffer[i] & ((brword)1 << (br->bytes*8-j-1)) ? 1:0);
+			fprintf(out, "\n");
+		}
+	}
+}
+
+void FLAC__bitreader_reset_read_crc16(FLAC__BitReader *br, FLAC__uint16 seed)
+{
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+	FLAC__ASSERT((br->consumed_bits & 7) == 0);
+
+	br->read_crc16 = (uint32_t)seed;
+	br->crc16_offset = br->consumed_words;
+	br->crc16_align = br->consumed_bits;
+}
+
+FLAC__uint16 FLAC__bitreader_get_read_crc16(FLAC__BitReader *br)
+{
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+
+	/* CRC consumed words up to here */
+	crc16_update_block_(br);
+
+	FLAC__ASSERT((br->consumed_bits & 7) == 0);
+	FLAC__ASSERT(br->crc16_align <= br->consumed_bits);
+
+	/* CRC any tail bytes in a partially-consumed word */
+	if(br->consumed_bits) {
+		const brword tail = br->buffer[br->consumed_words];
+		for( ; br->crc16_align < br->consumed_bits; br->crc16_align += 8)
+			br->read_crc16 = FLAC__CRC16_UPDATE((uint32_t)((tail >> (FLAC__BITS_PER_WORD-8-br->crc16_align)) & 0xff), br->read_crc16);
+	}
+	return br->read_crc16;
+}
+
+inline FLAC__bool FLAC__bitreader_is_consumed_byte_aligned(const FLAC__BitReader *br)
+{
+	return ((br->consumed_bits & 7) == 0);
+}
+
+inline uint32_t FLAC__bitreader_bits_left_for_byte_alignment(const FLAC__BitReader *br)
+{
+	return 8 - (br->consumed_bits & 7);
+}
+
+inline uint32_t FLAC__bitreader_get_input_bits_unconsumed(const FLAC__BitReader *br)
+{
+	return (br->words-br->consumed_words)*FLAC__BITS_PER_WORD + br->bytes*8 - br->consumed_bits;
+}
+
+void FLAC__bitreader_set_limit(FLAC__BitReader *br, uint32_t limit)
+{
+	br->read_limit = limit;
+	br->read_limit_set = true;
+}
+
+void FLAC__bitreader_remove_limit(FLAC__BitReader *br)
+{
+	br->read_limit_set = false;
+	br->read_limit = -1;
+}
+
+uint32_t FLAC__bitreader_limit_remaining(FLAC__BitReader *br)
+{
+	FLAC__ASSERT(br->read_limit_set);
+	return br->read_limit;
+}
+void FLAC__bitreader_limit_invalidate(FLAC__BitReader *br)
+{
+	br->read_limit = -1;
+}
+
+FLAC__bool FLAC__bitreader_read_raw_uint32(FLAC__BitReader *br, FLAC__uint32 *val, uint32_t bits)
+{
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+
+	FLAC__ASSERT(bits <= 32);
+	FLAC__ASSERT((br->capacity*FLAC__BITS_PER_WORD) * 2 >= bits);
+	FLAC__ASSERT(br->consumed_words <= br->words);
+
+	/* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
+	FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
+
+	if(bits == 0) { /* OPT: investigate if this can ever happen, maybe change to assertion */
+		*val = 0;
+		return true;
+	}
+
+	if(br->read_limit_set && br->read_limit < (uint32_t)-1){
+		if(br->read_limit < bits) {
+			br->read_limit = -1;
+			return false;
+		}
+		else
+			br->read_limit -= bits;
+	}
+
+	while((br->words-br->consumed_words)*FLAC__BITS_PER_WORD + br->bytes*8 - br->consumed_bits < bits) {
+		if(!bitreader_read_from_client_(br))
+			return false;
+	}
+	if(br->consumed_words < br->words) { /* if we've not consumed up to a partial tail word... */
+		/* OPT: taking out the consumed_bits==0 "else" case below might make things faster if less code allows the compiler to inline this function */
+		if(br->consumed_bits) {
+			/* this also works when consumed_bits==0, it's just a little slower than necessary for that case */
+			const uint32_t n = FLAC__BITS_PER_WORD - br->consumed_bits;
+			const brword word = br->buffer[br->consumed_words];
+			const brword mask = br->consumed_bits < FLAC__BITS_PER_WORD ? FLAC__WORD_ALL_ONES >> br->consumed_bits : 0;
+			if(bits < n) {
+				uint32_t shift = n - bits;
+				*val = shift < FLAC__BITS_PER_WORD ? (FLAC__uint32)((word & mask) >> shift) : 0; /* The result has <= 32 non-zero bits */
+				br->consumed_bits += bits;
+				return true;
+			}
+			/* (FLAC__BITS_PER_WORD - br->consumed_bits <= bits) ==> (FLAC__WORD_ALL_ONES >> br->consumed_bits) has no more than 'bits' non-zero bits */
+			*val = (FLAC__uint32)(word & mask);
+			bits -= n;
+			br->consumed_words++;
+			br->consumed_bits = 0;
+			if(bits) { /* if there are still bits left to read, there have to be less than 32 so they will all be in the next word */
+				uint32_t shift = FLAC__BITS_PER_WORD - bits;
+				*val = bits < 32 ? *val << bits : 0;
+				*val |= shift < FLAC__BITS_PER_WORD ? (FLAC__uint32)(br->buffer[br->consumed_words] >> shift) : 0;
+				br->consumed_bits = bits;
+			}
+			return true;
+		}
+		else { /* br->consumed_bits == 0 */
+			const brword word = br->buffer[br->consumed_words];
+			if(bits < FLAC__BITS_PER_WORD) {
+				*val = (FLAC__uint32)(word >> (FLAC__BITS_PER_WORD-bits));
+				br->consumed_bits = bits;
+				return true;
+			}
+			/* at this point bits == FLAC__BITS_PER_WORD == 32; because of previous assertions, it can't be larger */
+			*val = (FLAC__uint32)word;
+			br->consumed_words++;
+			return true;
+		}
+	}
+	else {
+		/* in this case we're starting our read at a partial tail word;
+		 * the reader has guaranteed that we have at least 'bits' bits
+		 * available to read, which makes this case simpler.
+		 */
+		/* OPT: taking out the consumed_bits==0 "else" case below might make things faster if less code allows the compiler to inline this function */
+		if(br->consumed_bits) {
+			/* this also works when consumed_bits==0, it's just a little slower than necessary for that case */
+			FLAC__ASSERT(br->consumed_bits + bits <= br->bytes*8);
+			*val = (FLAC__uint32)((br->buffer[br->consumed_words] & (FLAC__WORD_ALL_ONES >> br->consumed_bits)) >> (FLAC__BITS_PER_WORD-br->consumed_bits-bits));
+			br->consumed_bits += bits;
+			return true;
+		}
+		else {
+			*val = (FLAC__uint32)(br->buffer[br->consumed_words] >> (FLAC__BITS_PER_WORD-bits));
+			br->consumed_bits += bits;
+			return true;
+		}
+	}
+}
+
+FLAC__bool FLAC__bitreader_read_raw_int32(FLAC__BitReader *br, FLAC__int32 *val, uint32_t bits)
+{
+	FLAC__uint32 uval, mask;
+	/* OPT: inline raw uint32 code here, or make into a macro if possible in the .h file */
+	if (bits < 1 || ! FLAC__bitreader_read_raw_uint32(br, &uval, bits))
+		return false;
+	/* sign-extend *val assuming it is currently bits wide. */
+	/* From: https://graphics.stanford.edu/~seander/bithacks.html#FixedSignExtend */
+	mask = bits >= 33 ? 0 : 1lu << (bits - 1);
+	*val = (uval ^ mask) - mask;
+	return true;
+}
+
+FLAC__bool FLAC__bitreader_read_raw_uint64(FLAC__BitReader *br, FLAC__uint64 *val, uint32_t bits)
+{
+	FLAC__uint32 hi, lo;
+
+	if(bits > 32) {
+		if(!FLAC__bitreader_read_raw_uint32(br, &hi, bits-32))
+			return false;
+		if(!FLAC__bitreader_read_raw_uint32(br, &lo, 32))
+			return false;
+		*val = hi;
+		*val <<= 32;
+		*val |= lo;
+	}
+	else {
+		if(!FLAC__bitreader_read_raw_uint32(br, &lo, bits))
+			return false;
+		*val = lo;
+	}
+	return true;
+}
+
+FLAC__bool FLAC__bitreader_read_raw_int64(FLAC__BitReader *br, FLAC__int64 *val, uint32_t bits)
+{
+	FLAC__uint64 uval, mask;
+	/* OPT: inline raw uint64 code here, or make into a macro if possible in the .h file */
+	if (bits < 1 || ! FLAC__bitreader_read_raw_uint64(br, &uval, bits))
+		return false;
+	/* sign-extend *val assuming it is currently bits wide. */
+	/* From: https://graphics.stanford.edu/~seander/bithacks.html#FixedSignExtend */
+	mask = bits >= 65 ? 0 : 1llu << (bits - 1);
+	*val = (uval ^ mask) - mask;
+	return true;
+}
+
+inline FLAC__bool FLAC__bitreader_read_uint32_little_endian(FLAC__BitReader *br, FLAC__uint32 *val)
+{
+	FLAC__uint32 x8, x32 = 0;
+
+	/* this doesn't need to be that fast as currently it is only used for vorbis comments */
+
+	if(!FLAC__bitreader_read_raw_uint32(br, &x32, 8))
+		return false;
+
+	if(!FLAC__bitreader_read_raw_uint32(br, &x8, 8))
+		return false;
+	x32 |= (x8 << 8);
+
+	if(!FLAC__bitreader_read_raw_uint32(br, &x8, 8))
+		return false;
+	x32 |= (x8 << 16);
+
+	if(!FLAC__bitreader_read_raw_uint32(br, &x8, 8))
+		return false;
+	x32 |= (x8 << 24);
+
+	*val = x32;
+	return true;
+}
+
+FLAC__bool FLAC__bitreader_skip_bits_no_crc(FLAC__BitReader *br, uint32_t bits)
+{
+	/*
+	 * OPT: a faster implementation is possible but probably not that useful
+	 * since this is only called a couple of times in the metadata readers.
+	 */
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+
+	if(bits > 0) {
+		const uint32_t n = br->consumed_bits & 7;
+		uint32_t m;
+		FLAC__uint32 x;
+
+		if(n != 0) {
+			m = flac_min(8-n, bits);
+			if(!FLAC__bitreader_read_raw_uint32(br, &x, m))
+				return false;
+			bits -= m;
+		}
+		m = bits / 8;
+		if(m > 0) {
+			if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(br, m))
+				return false;
+			bits %= 8;
+		}
+		if(bits > 0) {
+			if(!FLAC__bitreader_read_raw_uint32(br, &x, bits))
+				return false;
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool FLAC__bitreader_skip_byte_block_aligned_no_crc(FLAC__BitReader *br, uint32_t nvals)
+{
+	FLAC__uint32 x;
+
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(br));
+
+	if(br->read_limit_set && br->read_limit < (uint32_t)-1){
+		if(br->read_limit < nvals*8){
+			br->read_limit = -1;
+			return false;
+		}
+	}
+
+	/* step 1: skip over partial head word to get word aligned */
+	while(nvals && br->consumed_bits) { /* i.e. run until we read 'nvals' bytes or we hit the end of the head word */
+		if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
+			return false;
+		nvals--;
+	}
+	if(0 == nvals)
+		return true;
+
+	/* step 2: skip whole words in chunks */
+	while(nvals >= FLAC__BYTES_PER_WORD) {
+		if(br->consumed_words < br->words) {
+			br->consumed_words++;
+			nvals -= FLAC__BYTES_PER_WORD;
+			if(br->read_limit_set)
+				br->read_limit -= FLAC__BITS_PER_WORD;
+		}
+		else if(!bitreader_read_from_client_(br))
+			return false;
+	}
+	/* step 3: skip any remainder from partial tail bytes */
+	while(nvals) {
+		if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
+			return false;
+		nvals--;
+	}
+
+	return true;
+}
+
+FLAC__bool FLAC__bitreader_read_byte_block_aligned_no_crc(FLAC__BitReader *br, FLAC__byte *val, uint32_t nvals)
+{
+	FLAC__uint32 x;
+
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(br));
+
+	if(br->read_limit_set && br->read_limit < (uint32_t)-1){
+		if(br->read_limit < nvals*8){
+			br->read_limit = -1;
+			return false;
+		}
+	}
+
+	/* step 1: read from partial head word to get word aligned */
+	while(nvals && br->consumed_bits) { /* i.e. run until we read 'nvals' bytes or we hit the end of the head word */
+		if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
+			return false;
+		*val++ = (FLAC__byte)x;
+		nvals--;
+	}
+	if(0 == nvals)
+		return true;
+	/* step 2: read whole words in chunks */
+	while(nvals >= FLAC__BYTES_PER_WORD) {
+		if(br->consumed_words < br->words) {
+			const brword word = br->buffer[br->consumed_words++];
+#if FLAC__BYTES_PER_WORD == 4
+			val[0] = (FLAC__byte)(word >> 24);
+			val[1] = (FLAC__byte)(word >> 16);
+			val[2] = (FLAC__byte)(word >> 8);
+			val[3] = (FLAC__byte)word;
+#elif FLAC__BYTES_PER_WORD == 8
+			val[0] = (FLAC__byte)(word >> 56);
+			val[1] = (FLAC__byte)(word >> 48);
+			val[2] = (FLAC__byte)(word >> 40);
+			val[3] = (FLAC__byte)(word >> 32);
+			val[4] = (FLAC__byte)(word >> 24);
+			val[5] = (FLAC__byte)(word >> 16);
+			val[6] = (FLAC__byte)(word >> 8);
+			val[7] = (FLAC__byte)word;
+#else
+			for(x = 0; x < FLAC__BYTES_PER_WORD; x++)
+				val[x] = (FLAC__byte)(word >> (8*(FLAC__BYTES_PER_WORD-x-1)));
+#endif
+			val += FLAC__BYTES_PER_WORD;
+			nvals -= FLAC__BYTES_PER_WORD;
+			if(br->read_limit_set)
+				br->read_limit -= FLAC__BITS_PER_WORD;
+		}
+		else if(!bitreader_read_from_client_(br))
+			return false;
+	}
+	/* step 3: read any remainder from partial tail bytes */
+	while(nvals) {
+		if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
+			return false;
+		*val++ = (FLAC__byte)x;
+		nvals--;
+	}
+
+	return true;
+}
+
+FLAC__bool FLAC__bitreader_read_unary_unsigned(FLAC__BitReader *br, uint32_t *val)
+#if 0 /* slow but readable version */
+{
+	uint32_t bit;
+
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+
+	*val = 0;
+	while(1) {
+		if(!FLAC__bitreader_read_bit(br, &bit))
+			return false;
+		if(bit)
+			break;
+		else
+			*val++;
+	}
+	return true;
+}
+#else
+{
+	uint32_t i;
+
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+
+	*val = 0;
+	while(1) {
+		while(br->consumed_words < br->words) { /* if we've not consumed up to a partial tail word... */
+			brword b = br->consumed_bits < FLAC__BITS_PER_WORD ? br->buffer[br->consumed_words] << br->consumed_bits : 0;
+			if(b) {
+				i = COUNT_ZERO_MSBS(b);
+				*val += i;
+				i++;
+				br->consumed_bits += i;
+				if(br->consumed_bits >= FLAC__BITS_PER_WORD) { /* faster way of testing if(br->consumed_bits == FLAC__BITS_PER_WORD) */
+					br->consumed_words++;
+					br->consumed_bits = 0;
+				}
+				return true;
+			}
+			else {
+				*val += FLAC__BITS_PER_WORD - br->consumed_bits;
+				br->consumed_words++;
+				br->consumed_bits = 0;
+				/* didn't find stop bit yet, have to keep going... */
+			}
+		}
+		/* at this point we've eaten up all the whole words; have to try
+		 * reading through any tail bytes before calling the read callback.
+		 * this is a repeat of the above logic adjusted for the fact we
+		 * don't have a whole word.  note though if the client is feeding
+		 * us data a byte at a time (unlikely), br->consumed_bits may not
+		 * be zero.
+		 */
+		if(br->bytes*8 > br->consumed_bits) {
+			const uint32_t end = br->bytes * 8;
+			brword b = (br->buffer[br->consumed_words] & (FLAC__WORD_ALL_ONES << (FLAC__BITS_PER_WORD-end))) << br->consumed_bits;
+			if(b) {
+				i = COUNT_ZERO_MSBS(b);
+				*val += i;
+				i++;
+				br->consumed_bits += i;
+				FLAC__ASSERT(br->consumed_bits < FLAC__BITS_PER_WORD);
+				return true;
+			}
+			else {
+				*val += end - br->consumed_bits;
+				br->consumed_bits = end;
+				FLAC__ASSERT(br->consumed_bits < FLAC__BITS_PER_WORD);
+				/* didn't find stop bit yet, have to keep going... */
+			}
+		}
+		if(!bitreader_read_from_client_(br))
+			return false;
+	}
+}
+#endif
+
+#if 0 /* unused */
+FLAC__bool FLAC__bitreader_read_rice_signed(FLAC__BitReader *br, int *val, uint32_t parameter)
+{
+	FLAC__uint32 lsbs = 0, msbs = 0;
+	uint32_t uval;
+
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+	FLAC__ASSERT(parameter <= 31);
+
+	/* read the unary MSBs and end bit */
+	if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
+		return false;
+
+	/* read the binary LSBs */
+	if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, parameter))
+		return false;
+
+	/* compose the value */
+	uval = (msbs << parameter) | lsbs;
+	if(uval & 1)
+		*val = -((int)(uval >> 1)) - 1;
+	else
+		*val = (int)(uval >> 1);
+
+	return true;
+}
+#endif
+
+/* this is by far the most heavily used reader call.  it ain't pretty but it's fast */
+FLAC__bool FLAC__bitreader_read_rice_signed_block(FLAC__BitReader *br, int vals[], uint32_t nvals, uint32_t parameter)
+{
+	/* try and get br->consumed_words and br->consumed_bits into register;
+	 * must remember to flush them back to *br before calling other
+	 * bitreader functions that use them, and before returning */
+	uint32_t cwords, words, lsbs, msbs, x, y, limit;
+	uint32_t ucbits; /* keep track of the number of unconsumed bits in word */
+	brword b;
+	int *val, *end;
+
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+	/* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
+	FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
+	FLAC__ASSERT(parameter < 32);
+	/* the above two asserts also guarantee that the binary part never straddles more than 2 words, so we don't have to loop to read it */
+
+	limit = UINT32_MAX >> parameter; /* Maximal msbs that can occur with residual bounded to int32_t */
+
+	val = vals;
+	end = vals + nvals;
+
+	if(parameter == 0) {
+		while(val < end) {
+			/* read the unary MSBs and end bit */
+			if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
+				return false;
+			/* Checking limit here would be overzealous: coding UINT32_MAX
+			 * with parameter == 0 would take 4GiB */
+			*val++ = (int)(msbs >> 1) ^ -(int)(msbs & 1);
+		}
+
+		return true;
+	}
+
+	FLAC__ASSERT(parameter > 0);
+
+	cwords = br->consumed_words;
+	words = br->words;
+
+	/* if we've not consumed up to a partial tail word... */
+	if(cwords >= words) {
+		x = 0;
+		goto process_tail;
+	}
+
+	ucbits = FLAC__BITS_PER_WORD - br->consumed_bits;
+	b = br->buffer[cwords] << br->consumed_bits;  /* keep unconsumed bits aligned to left */
+
+	while(val < end) {
+		/* read the unary MSBs and end bit */
+		x = y = COUNT_ZERO_MSBS2(b);
+		if(x == FLAC__BITS_PER_WORD) {
+			x = ucbits;
+			do {
+				/* didn't find stop bit yet, have to keep going... */
+				cwords++;
+				if (cwords >= words)
+					goto incomplete_msbs;
+				b = br->buffer[cwords];
+				y = COUNT_ZERO_MSBS2(b);
+				x += y;
+			} while(y == FLAC__BITS_PER_WORD);
+		}
+		b <<= y;
+		b <<= 1; /* account for stop bit */
+		ucbits = (ucbits - x - 1) % FLAC__BITS_PER_WORD;
+		msbs = x;
+
+		if(x > limit)
+			return false;
+
+		/* read the binary LSBs */
+		x = (FLAC__uint32)(b >> (FLAC__BITS_PER_WORD - parameter)); /* parameter < 32, so we can cast to 32-bit uint32_t */
+		if(parameter <= ucbits) {
+			ucbits -= parameter;
+			b <<= parameter;
+		} else {
+			/* there are still bits left to read, they will all be in the next word */
+			cwords++;
+			if (cwords >= words)
+				goto incomplete_lsbs;
+			b = br->buffer[cwords];
+			ucbits += FLAC__BITS_PER_WORD - parameter;
+			x |= (FLAC__uint32)(b >> ucbits);
+			b <<= FLAC__BITS_PER_WORD - ucbits;
+		}
+		lsbs = x;
+
+		/* compose the value */
+		x = (msbs << parameter) | lsbs;
+		*val++ = (int)(x >> 1) ^ -(int)(x & 1);
+
+		continue;
+
+		/* at this point we've eaten up all the whole words */
+process_tail:
+		do {
+			if(0) {
+incomplete_msbs:
+				br->consumed_bits = 0;
+				br->consumed_words = cwords;
+			}
+
+			/* read the unary MSBs and end bit */
+			if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
+				return false;
+			msbs += x;
+			x = ucbits = 0;
+
+			if(0) {
+incomplete_lsbs:
+				br->consumed_bits = 0;
+				br->consumed_words = cwords;
+			}
+
+			/* read the binary LSBs */
+			if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, parameter - ucbits))
+				return false;
+			lsbs = x | lsbs;
+
+			/* compose the value */
+			x = (msbs << parameter) | lsbs;
+			*val++ = (int)(x >> 1) ^ -(int)(x & 1);
+			x = 0;
+
+			cwords = br->consumed_words;
+			words = br->words;
+			ucbits = FLAC__BITS_PER_WORD - br->consumed_bits;
+			b = cwords < br->capacity ? br->buffer[cwords] << br->consumed_bits : 0;
+		} while(cwords >= words && val < end);
+	}
+
+	if(ucbits == 0 && cwords < words) {
+		/* don't leave the head word with no unconsumed bits */
+		cwords++;
+		ucbits = FLAC__BITS_PER_WORD;
+	}
+
+	br->consumed_bits = FLAC__BITS_PER_WORD - ucbits;
+	br->consumed_words = cwords;
+
+	return true;
+}
+
+#if 0 /* UNUSED */
+FLAC__bool FLAC__bitreader_read_golomb_signed(FLAC__BitReader *br, int *val, uint32_t parameter)
+{
+	FLAC__uint32 lsbs = 0, msbs = 0;
+	uint32_t bit, uval, k;
+
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+
+	k = FLAC__bitmath_ilog2(parameter);
+
+	/* read the unary MSBs and end bit */
+	if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
+		return false;
+
+	/* read the binary LSBs */
+	if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, k))
+		return false;
+
+	if(parameter == 1u<<k) {
+		/* compose the value */
+		uval = (msbs << k) | lsbs;
+	}
+	else {
+		uint32_t d = (1 << (k+1)) - parameter;
+		if(lsbs >= d) {
+			if(!FLAC__bitreader_read_bit(br, &bit))
+				return false;
+			lsbs <<= 1;
+			lsbs |= bit;
+			lsbs -= d;
+		}
+		/* compose the value */
+		uval = msbs * parameter + lsbs;
+	}
+
+	/* unfold uint32_t to signed */
+	if(uval & 1)
+		*val = -((int)(uval >> 1)) - 1;
+	else
+		*val = (int)(uval >> 1);
+
+	return true;
+}
+
+FLAC__bool FLAC__bitreader_read_golomb_unsigned(FLAC__BitReader *br, uint32_t *val, uint32_t parameter)
+{
+	FLAC__uint32 lsbs, msbs = 0;
+	uint32_t bit, k;
+
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+
+	k = FLAC__bitmath_ilog2(parameter);
+
+	/* read the unary MSBs and end bit */
+	if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
+		return false;
+
+	/* read the binary LSBs */
+	if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, k))
+		return false;
+
+	if(parameter == 1u<<k) {
+		/* compose the value */
+		*val = (msbs << k) | lsbs;
+	}
+	else {
+		uint32_t d = (1 << (k+1)) - parameter;
+		if(lsbs >= d) {
+			if(!FLAC__bitreader_read_bit(br, &bit))
+				return false;
+			lsbs <<= 1;
+			lsbs |= bit;
+			lsbs -= d;
+		}
+		/* compose the value */
+		*val = msbs * parameter + lsbs;
+	}
+
+	return true;
+}
+#endif /* UNUSED */
+
+/* on return, if *val == 0xffffffff then the utf-8 sequence was invalid, but the return value will be true */
+FLAC__bool FLAC__bitreader_read_utf8_uint32(FLAC__BitReader *br, FLAC__uint32 *val, FLAC__byte *raw, uint32_t *rawlen)
+{
+	FLAC__uint32 v = 0;
+	FLAC__uint32 x;
+	uint32_t i;
+
+	if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
+		return false;
+	if(raw)
+		raw[(*rawlen)++] = (FLAC__byte)x;
+	if(!(x & 0x80)) { /* 0xxxxxxx */
+		v = x;
+		i = 0;
+	}
+	else if(x & 0xC0 && !(x & 0x20)) { /* 110xxxxx */
+		v = x & 0x1F;
+		i = 1;
+	}
+	else if(x & 0xE0 && !(x & 0x10)) { /* 1110xxxx */
+		v = x & 0x0F;
+		i = 2;
+	}
+	else if(x & 0xF0 && !(x & 0x08)) { /* 11110xxx */
+		v = x & 0x07;
+		i = 3;
+	}
+	else if(x & 0xF8 && !(x & 0x04)) { /* 111110xx */
+		v = x & 0x03;
+		i = 4;
+	}
+	else if(x & 0xFC && !(x & 0x02)) { /* 1111110x */
+		v = x & 0x01;
+		i = 5;
+	}
+	else {
+		*val = 0xffffffff;
+		return true;
+	}
+	for( ; i; i--) {
+		if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
+			return false;
+		if(raw)
+			raw[(*rawlen)++] = (FLAC__byte)x;
+		if(!(x & 0x80) || (x & 0x40)) { /* 10xxxxxx */
+			*val = 0xffffffff;
+			return true;
+		}
+		v <<= 6;
+		v |= (x & 0x3F);
+	}
+	*val = v;
+	return true;
+}
+
+/* on return, if *val == 0xffffffffffffffff then the utf-8 sequence was invalid, but the return value will be true */
+FLAC__bool FLAC__bitreader_read_utf8_uint64(FLAC__BitReader *br, FLAC__uint64 *val, FLAC__byte *raw, uint32_t *rawlen)
+{
+	FLAC__uint64 v = 0;
+	FLAC__uint32 x;
+	uint32_t i;
+
+	if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
+		return false;
+	if(raw)
+		raw[(*rawlen)++] = (FLAC__byte)x;
+	if(!(x & 0x80)) { /* 0xxxxxxx */
+		v = x;
+		i = 0;
+	}
+	else if(x & 0xC0 && !(x & 0x20)) { /* 110xxxxx */
+		v = x & 0x1F;
+		i = 1;
+	}
+	else if(x & 0xE0 && !(x & 0x10)) { /* 1110xxxx */
+		v = x & 0x0F;
+		i = 2;
+	}
+	else if(x & 0xF0 && !(x & 0x08)) { /* 11110xxx */
+		v = x & 0x07;
+		i = 3;
+	}
+	else if(x & 0xF8 && !(x & 0x04)) { /* 111110xx */
+		v = x & 0x03;
+		i = 4;
+	}
+	else if(x & 0xFC && !(x & 0x02)) { /* 1111110x */
+		v = x & 0x01;
+		i = 5;
+	}
+	else if(x & 0xFE && !(x & 0x01)) { /* 11111110 */
+		v = 0;
+		i = 6;
+	}
+	else {
+		*val = FLAC__U64L(0xffffffffffffffff);
+		return true;
+	}
+	for( ; i; i--) {
+		if(!FLAC__bitreader_read_raw_uint32(br, &x, 8))
+			return false;
+		if(raw)
+			raw[(*rawlen)++] = (FLAC__byte)x;
+		if(!(x & 0x80) || (x & 0x40)) { /* 10xxxxxx */
+			*val = FLAC__U64L(0xffffffffffffffff);
+			return true;
+		}
+		v <<= 6;
+		v |= (x & 0x3F);
+	}
+	*val = v;
+	return true;
+}
+
+/* These functions are declared inline in this file but are also callable as
+ * externs from elsewhere.
+ * According to the C99 spec, section 6.7.4, simply providing a function
+ * prototype in a header file without 'inline' and making the function inline
+ * in this file should be sufficient.
+ * Unfortunately, the Microsoft VS compiler doesn't pick them up externally. To
+ * fix that we add extern declarations here.
+ */
+extern FLAC__bool FLAC__bitreader_is_consumed_byte_aligned(const FLAC__BitReader *br);
+extern uint32_t FLAC__bitreader_bits_left_for_byte_alignment(const FLAC__BitReader *br);
+extern uint32_t FLAC__bitreader_get_input_bits_unconsumed(const FLAC__BitReader *br);
+extern FLAC__bool FLAC__bitreader_read_uint32_little_endian(FLAC__BitReader *br, FLAC__uint32 *val);
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/bitwriter.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/bitwriter.c
new file mode 100644
index 00000000..8865a2f4
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/bitwriter.c
@@ -0,0 +1,904 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include "private/bitwriter.h"
+#include "private/crc.h"
+#include "private/format.h"
+#include "private/macros.h"
+#include "private/stream_encoder.h"
+#include "FLAC/assert.h"
+#include "share/alloc.h"
+#include "share/compat.h"
+#include "share/endswap.h"
+
+/* Things should be fastest when this matches the machine word size */
+/* WATCHOUT: if you change this you must also change the following #defines down to SWAP_BE_WORD_TO_HOST below to match */
+/* WATCHOUT: there are a few places where the code will not work unless bwword is >= 32 bits wide */
+
+#if (ENABLE_64_BIT_WORDS == 0)
+
+typedef FLAC__uint32 bwword;
+#define FLAC__BYTES_PER_WORD 4		/* sizeof bwword */
+#define FLAC__BITS_PER_WORD 32
+/* SWAP_BE_WORD_TO_HOST swaps bytes in a bwword (which is always big-endian) if necessary to match host byte order */
+#if WORDS_BIGENDIAN
+#define SWAP_BE_WORD_TO_HOST(x) (x)
+#else
+#define SWAP_BE_WORD_TO_HOST(x) ENDSWAP_32(x)
+#endif
+
+#else
+
+typedef FLAC__uint64 bwword;
+#define FLAC__BYTES_PER_WORD 8		/* sizeof bwword */
+#define FLAC__BITS_PER_WORD 64
+/* SWAP_BE_WORD_TO_HOST swaps bytes in a bwword (which is always big-endian) if necessary to match host byte order */
+#if WORDS_BIGENDIAN
+#define SWAP_BE_WORD_TO_HOST(x) (x)
+#else
+#define SWAP_BE_WORD_TO_HOST(x) ENDSWAP_64(x)
+#endif
+
+#endif
+
+/*
+ * The default capacity here doesn't matter too much.  The buffer always grows
+ * to hold whatever is written to it.  Usually the encoder will stop adding at
+ * a frame or metadata block, then write that out and clear the buffer for the
+ * next one.
+ */
+static const uint32_t FLAC__BITWRITER_DEFAULT_CAPACITY = 32768u / sizeof(bwword); /* size in words */
+/* When growing, increment 4K at a time */
+static const uint32_t FLAC__BITWRITER_DEFAULT_INCREMENT = 4096u / sizeof(bwword); /* size in words */
+
+#define FLAC__WORDS_TO_BITS(words) ((words) * FLAC__BITS_PER_WORD)
+#define FLAC__TOTAL_BITS(bw) (FLAC__WORDS_TO_BITS((bw)->words) + (bw)->bits)
+
+struct FLAC__BitWriter {
+	bwword *buffer;
+	bwword accum; /* accumulator; bits are right-justified; when full, accum is appended to buffer */
+	uint32_t capacity; /* capacity of buffer in words */
+	uint32_t words; /* # of complete words in buffer */
+	uint32_t bits; /* # of used bits in accum */
+};
+
+/* * WATCHOUT: The current implementation only grows the buffer. */
+#ifndef __SUNPRO_C
+static
+#endif
+FLAC__bool bitwriter_grow_(FLAC__BitWriter *bw, uint32_t bits_to_add)
+{
+	uint32_t new_capacity;
+	bwword *new_buffer;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+
+	/* calculate total words needed to store 'bits_to_add' additional bits */
+	new_capacity = bw->words + ((bw->bits + bits_to_add + FLAC__BITS_PER_WORD - 1) / FLAC__BITS_PER_WORD);
+
+	/* it's possible (due to pessimism in the growth estimation that
+	 * leads to this call) that we don't actually need to grow
+	 */
+	if(bw->capacity >= new_capacity)
+		return true;
+
+	if(new_capacity * sizeof(bwword) > (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
+		/* Requested new capacity is larger than the largest possible metadata block,
+		 * which is also larger than the largest sane framesize. That means something
+		 * went very wrong somewhere and previous checks failed.
+		 * To prevent chrashing, give up */
+		return false;
+
+	/* round up capacity increase to the nearest FLAC__BITWRITER_DEFAULT_INCREMENT */
+	if((new_capacity - bw->capacity) % FLAC__BITWRITER_DEFAULT_INCREMENT)
+		new_capacity += FLAC__BITWRITER_DEFAULT_INCREMENT - ((new_capacity - bw->capacity) % FLAC__BITWRITER_DEFAULT_INCREMENT);
+	/* make sure we got everything right */
+	FLAC__ASSERT(0 == (new_capacity - bw->capacity) % FLAC__BITWRITER_DEFAULT_INCREMENT);
+	FLAC__ASSERT(new_capacity > bw->capacity);
+	FLAC__ASSERT(new_capacity >= bw->words + ((bw->bits + bits_to_add + FLAC__BITS_PER_WORD - 1) / FLAC__BITS_PER_WORD));
+
+	new_buffer = safe_realloc_nofree_mul_2op_(bw->buffer, sizeof(bwword), /*times*/new_capacity);
+	if(new_buffer == 0)
+		return false;
+	bw->buffer = new_buffer;
+	bw->capacity = new_capacity;
+	return true;
+}
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+
+FLAC__BitWriter *FLAC__bitwriter_new(void)
+{
+	FLAC__BitWriter *bw = calloc(1, sizeof(FLAC__BitWriter));
+	/* note that calloc() sets all members to 0 for us */
+	return bw;
+}
+
+void FLAC__bitwriter_delete(FLAC__BitWriter *bw)
+{
+	FLAC__ASSERT(0 != bw);
+
+	FLAC__bitwriter_free(bw);
+	free(bw);
+}
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__bool FLAC__bitwriter_init(FLAC__BitWriter *bw)
+{
+	FLAC__ASSERT(0 != bw);
+
+	bw->words = bw->bits = 0;
+	bw->capacity = FLAC__BITWRITER_DEFAULT_CAPACITY;
+	bw->buffer = malloc(sizeof(bwword) * bw->capacity);
+	if(bw->buffer == 0)
+		return false;
+
+	return true;
+}
+
+void FLAC__bitwriter_free(FLAC__BitWriter *bw)
+{
+	FLAC__ASSERT(0 != bw);
+
+	if(0 != bw->buffer)
+		free(bw->buffer);
+	bw->buffer = 0;
+	bw->capacity = 0;
+	bw->words = bw->bits = 0;
+}
+
+void FLAC__bitwriter_clear(FLAC__BitWriter *bw)
+{
+	bw->words = bw->bits = 0;
+}
+
+void FLAC__bitwriter_dump(const FLAC__BitWriter *bw, FILE *out)
+{
+	uint32_t i, j;
+	if(bw == 0) {
+		fprintf(out, "bitwriter is NULL\n");
+	}
+	else {
+		fprintf(out, "bitwriter: capacity=%u words=%u bits=%u total_bits=%u\n", bw->capacity, bw->words, bw->bits, FLAC__TOTAL_BITS(bw));
+
+		for(i = 0; i < bw->words; i++) {
+			fprintf(out, "%08X: ", i);
+			for(j = 0; j < FLAC__BITS_PER_WORD; j++)
+				fprintf(out, "%01d", bw->buffer[i] & ((bwword)1 << (FLAC__BITS_PER_WORD-j-1)) ? 1:0);
+			fprintf(out, "\n");
+		}
+		if(bw->bits > 0) {
+			fprintf(out, "%08X: ", i);
+			for(j = 0; j < bw->bits; j++)
+				fprintf(out, "%01d", bw->accum & ((bwword)1 << (bw->bits-j-1)) ? 1:0);
+			fprintf(out, "\n");
+		}
+	}
+}
+
+FLAC__bool FLAC__bitwriter_get_write_crc16(FLAC__BitWriter *bw, FLAC__uint16 *crc)
+{
+	const FLAC__byte *buffer;
+	size_t bytes;
+
+	FLAC__ASSERT((bw->bits & 7) == 0); /* assert that we're byte-aligned */
+
+	if(!FLAC__bitwriter_get_buffer(bw, &buffer, &bytes))
+		return false;
+
+	*crc = (FLAC__uint16)FLAC__crc16(buffer, bytes);
+	FLAC__bitwriter_release_buffer(bw);
+	return true;
+}
+
+FLAC__bool FLAC__bitwriter_get_write_crc8(FLAC__BitWriter *bw, FLAC__byte *crc)
+{
+	const FLAC__byte *buffer;
+	size_t bytes;
+
+	FLAC__ASSERT((bw->bits & 7) == 0); /* assert that we're byte-aligned */
+
+	if(!FLAC__bitwriter_get_buffer(bw, &buffer, &bytes))
+		return false;
+
+	*crc = FLAC__crc8(buffer, bytes);
+	FLAC__bitwriter_release_buffer(bw);
+	return true;
+}
+
+FLAC__bool FLAC__bitwriter_is_byte_aligned(const FLAC__BitWriter *bw)
+{
+	return ((bw->bits & 7) == 0);
+}
+
+uint32_t FLAC__bitwriter_get_input_bits_unconsumed(const FLAC__BitWriter *bw)
+{
+	return FLAC__TOTAL_BITS(bw);
+}
+
+FLAC__bool FLAC__bitwriter_get_buffer(FLAC__BitWriter *bw, const FLAC__byte **buffer, size_t *bytes)
+{
+	FLAC__ASSERT((bw->bits & 7) == 0);
+	/* double protection */
+	if(bw->bits & 7)
+		return false;
+	/* if we have bits in the accumulator we have to flush those to the buffer first */
+	if(bw->bits) {
+		FLAC__ASSERT(bw->words <= bw->capacity);
+		if(bw->words == bw->capacity && !bitwriter_grow_(bw, FLAC__BITS_PER_WORD))
+			return false;
+		/* append bits as complete word to buffer, but don't change bw->accum or bw->bits */
+		bw->buffer[bw->words] = SWAP_BE_WORD_TO_HOST(bw->accum << (FLAC__BITS_PER_WORD-bw->bits));
+	}
+	/* now we can just return what we have */
+	*buffer = (FLAC__byte*)bw->buffer;
+	*bytes = (FLAC__BYTES_PER_WORD * bw->words) + (bw->bits >> 3);
+	return true;
+}
+
+void FLAC__bitwriter_release_buffer(FLAC__BitWriter *bw)
+{
+	/* nothing to do.  in the future, strict checking of a 'writer-is-in-
+	 * get-mode' flag could be added everywhere and then cleared here
+	 */
+	(void)bw;
+}
+
+inline FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, uint32_t bits)
+{
+	uint32_t n;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+
+	if(bits == 0)
+		return true;
+	/* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+bits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
+	if(bw->capacity <= bw->words + bits && !bitwriter_grow_(bw, bits))
+		return false;
+	/* first part gets to word alignment */
+	if(bw->bits) {
+		n = flac_min(FLAC__BITS_PER_WORD - bw->bits, bits);
+		bw->accum <<= n;
+		bits -= n;
+		bw->bits += n;
+		if(bw->bits == FLAC__BITS_PER_WORD) {
+			bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
+			bw->bits = 0;
+		}
+		else
+			return true;
+	}
+	/* do whole words */
+	while(bits >= FLAC__BITS_PER_WORD) {
+		bw->buffer[bw->words++] = 0;
+		bits -= FLAC__BITS_PER_WORD;
+	}
+	/* do any leftovers */
+	if(bits > 0) {
+		bw->accum = 0;
+		bw->bits = bits;
+	}
+	return true;
+}
+
+static inline FLAC__bool FLAC__bitwriter_write_raw_uint32_nocheck(FLAC__BitWriter *bw, FLAC__uint32 val, uint32_t bits)
+{
+	register uint32_t left;
+
+	/* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
+	FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
+
+	if(bw == 0 || bw->buffer == 0)
+		return false;
+
+	if (bits > 32)
+		return false;
+
+	if(bits == 0)
+		return true;
+
+	FLAC__ASSERT((bits == 32) || (val>>bits == 0));
+
+	/* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+bits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
+	if(bw->capacity <= bw->words + bits && !bitwriter_grow_(bw, bits))
+		return false;
+
+	left = FLAC__BITS_PER_WORD - bw->bits;
+	if(bits < left) {
+		bw->accum <<= bits;
+		bw->accum |= val;
+		bw->bits += bits;
+	}
+	else if(bw->bits) { /* WATCHOUT: if bw->bits == 0, left==FLAC__BITS_PER_WORD and bw->accum<<=left is a NOP instead of setting to 0 */
+		bw->accum <<= left;
+		bw->accum |= val >> (bw->bits = bits - left);
+		bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
+		bw->accum = val; /* unused top bits can contain garbage */
+	}
+	else { /* at this point bits == FLAC__BITS_PER_WORD == 32  and  bw->bits == 0 */
+		bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST((bwword)val);
+	}
+
+	return true;
+}
+
+inline FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, uint32_t bits)
+{
+	/* check that unused bits are unset */
+	if((bits < 32) && (val>>bits != 0))
+		return false;
+
+	return FLAC__bitwriter_write_raw_uint32_nocheck(bw, val, bits);
+}
+
+inline FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, uint32_t bits)
+{
+	/* zero-out unused bits */
+	if(bits < 32)
+		val &= (~(0xffffffff << bits));
+
+	return FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)val, bits);
+}
+
+inline FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, uint32_t bits)
+{
+	/* this could be a little faster but it's not used for much */
+	if(bits > 32) {
+		return
+			FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)(val>>32), bits-32) &&
+			FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)val, 32);
+	}
+	else
+		return FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)val, bits);
+}
+
+inline FLAC__bool FLAC__bitwriter_write_raw_int64(FLAC__BitWriter *bw, FLAC__int64 val, uint32_t bits)
+{
+	FLAC__uint64 uval = val;
+	/* zero-out unused bits */
+	if(bits < 64)
+		uval &= (~(UINT64_MAX << bits));
+	return FLAC__bitwriter_write_raw_uint64(bw, uval, bits);
+}
+
+inline FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val)
+{
+	/* this doesn't need to be that fast as currently it is only used for vorbis comments */
+
+	if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, val & 0xff, 8))
+		return false;
+	if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, (val>>8) & 0xff, 8))
+		return false;
+	if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, (val>>16) & 0xff, 8))
+		return false;
+	if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, val>>24, 8))
+		return false;
+
+	return true;
+}
+
+inline FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], uint32_t nvals)
+{
+	uint32_t i;
+
+	/* grow capacity upfront to prevent constant reallocation during writes */
+	if(bw->capacity <= bw->words + nvals / (FLAC__BITS_PER_WORD / 8) + 1 && !bitwriter_grow_(bw, nvals * 8))
+		return false;
+
+	/* this could be faster but currently we don't need it to be since it's only used for writing metadata */
+	for(i = 0; i < nvals; i++) {
+		if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)(vals[i]), 8))
+			return false;
+	}
+
+	return true;
+}
+
+FLAC__bool FLAC__bitwriter_write_unary_unsigned(FLAC__BitWriter *bw, uint32_t val)
+{
+	if(val < 32)
+		return FLAC__bitwriter_write_raw_uint32_nocheck(bw, 1, ++val);
+	else
+		return
+			FLAC__bitwriter_write_zeroes(bw, val) &&
+			FLAC__bitwriter_write_raw_uint32_nocheck(bw, 1, 1);
+}
+
+uint32_t FLAC__bitwriter_rice_bits(FLAC__int32 val, uint32_t parameter)
+{
+	FLAC__uint32 uval;
+
+	FLAC__ASSERT(parameter < 32);
+
+	/* fold signed to uint32_t; actual formula is: negative(v)? -2v-1 : 2v */
+	uval = val;
+	uval <<= 1;
+	uval ^= (val>>31);
+
+	return 1 + parameter + (uval >> parameter);
+}
+
+#if 0 /* UNUSED */
+uint32_t FLAC__bitwriter_golomb_bits_signed(int val, uint32_t parameter)
+{
+	uint32_t bits, msbs, uval;
+	uint32_t k;
+
+	FLAC__ASSERT(parameter > 0);
+
+	/* fold signed to uint32_t */
+	if(val < 0)
+		uval = (uint32_t)(((-(++val)) << 1) + 1);
+	else
+		uval = (uint32_t)(val << 1);
+
+	k = FLAC__bitmath_ilog2(parameter);
+	if(parameter == 1u<<k) {
+		FLAC__ASSERT(k <= 30);
+
+		msbs = uval >> k;
+		bits = 1 + k + msbs;
+	}
+	else {
+		uint32_t q, r, d;
+
+		d = (1 << (k+1)) - parameter;
+		q = uval / parameter;
+		r = uval - (q * parameter);
+
+		bits = 1 + q + k;
+		if(r >= d)
+			bits++;
+	}
+	return bits;
+}
+
+uint32_t FLAC__bitwriter_golomb_bits_unsigned(uint32_t uval, uint32_t parameter)
+{
+	uint32_t bits, msbs;
+	uint32_t k;
+
+	FLAC__ASSERT(parameter > 0);
+
+	k = FLAC__bitmath_ilog2(parameter);
+	if(parameter == 1u<<k) {
+		FLAC__ASSERT(k <= 30);
+
+		msbs = uval >> k;
+		bits = 1 + k + msbs;
+	}
+	else {
+		uint32_t q, r, d;
+
+		d = (1 << (k+1)) - parameter;
+		q = uval / parameter;
+		r = uval - (q * parameter);
+
+		bits = 1 + q + k;
+		if(r >= d)
+			bits++;
+	}
+	return bits;
+}
+#endif /* UNUSED */
+
+FLAC__bool FLAC__bitwriter_write_rice_signed(FLAC__BitWriter *bw, FLAC__int32 val, uint32_t parameter)
+{
+	uint32_t total_bits, interesting_bits, msbs;
+	FLAC__uint32 uval, pattern;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+	FLAC__ASSERT(parameter < 32);
+
+	/* fold signed to uint32_t; actual formula is: negative(v)? -2v-1 : 2v */
+	uval = val;
+	uval <<= 1;
+	uval ^= (val>>31);
+
+	msbs = uval >> parameter;
+	interesting_bits = 1 + parameter;
+	total_bits = interesting_bits + msbs;
+	pattern = 1 << parameter; /* the unary end bit */
+	pattern |= (uval & ((1<<parameter)-1)); /* the binary LSBs */
+
+	if(total_bits <= 32)
+		return FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits);
+	else
+		return
+			FLAC__bitwriter_write_zeroes(bw, msbs) && /* write the unary MSBs */
+			FLAC__bitwriter_write_raw_uint32(bw, pattern, interesting_bits); /* write the unary end bit and binary LSBs */
+}
+
+FLAC__bool FLAC__bitwriter_write_rice_signed_block(FLAC__BitWriter *bw, const FLAC__int32 *vals, uint32_t nvals, uint32_t parameter)
+{
+	const FLAC__uint32 mask1 = (FLAC__uint32)0xffffffff << parameter; /* we val|=mask1 to set the stop bit above it... */
+	const FLAC__uint32 mask2 = (FLAC__uint32)0xffffffff >> (31-parameter); /* ...then mask off the bits above the stop bit with val&=mask2 */
+	FLAC__uint32 uval;
+	uint32_t left;
+	const uint32_t lsbits = 1 + parameter;
+	uint32_t msbits, total_bits;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+	FLAC__ASSERT(parameter < 31);
+	/* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
+	FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
+
+	while(nvals) {
+		/* fold signed to uint32_t; actual formula is: negative(v)? -2v-1 : 2v */
+		uval = *vals;
+		uval <<= 1;
+		uval ^= (*vals>>31);
+
+		msbits = uval >> parameter;
+		total_bits = lsbits + msbits;
+
+		if(bw->bits && bw->bits + total_bits < FLAC__BITS_PER_WORD) { /* i.e. if the whole thing fits in the current bwword */
+			/* ^^^ if bw->bits is 0 then we may have filled the buffer and have no free bwword to work in */
+			bw->bits += total_bits;
+			uval |= mask1; /* set stop bit */
+			uval &= mask2; /* mask off unused top bits */
+			bw->accum <<= total_bits;
+			bw->accum |= uval;
+		}
+		else {
+			/* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+msbits+lsbits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
+			/* OPT: pessimism may cause flurry of false calls to grow_ which eat up all savings before it */
+			if(bw->capacity <= bw->words + bw->bits + msbits + 1 /* lsbits always fit in 1 bwword */ && !bitwriter_grow_(bw, total_bits))
+				return false;
+
+			if(msbits) {
+				/* first part gets to word alignment */
+				if(bw->bits) {
+					left = FLAC__BITS_PER_WORD - bw->bits;
+					if(msbits < left) {
+						bw->accum <<= msbits;
+						bw->bits += msbits;
+						goto break1;
+					}
+					else {
+						bw->accum <<= left;
+						msbits -= left;
+						bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
+						bw->bits = 0;
+					}
+				}
+				/* do whole words */
+				while(msbits >= FLAC__BITS_PER_WORD) {
+					bw->buffer[bw->words++] = 0;
+					msbits -= FLAC__BITS_PER_WORD;
+				}
+				/* do any leftovers */
+				if(msbits > 0) {
+					bw->accum = 0;
+					bw->bits = msbits;
+				}
+			}
+break1:
+			uval |= mask1; /* set stop bit */
+			uval &= mask2; /* mask off unused top bits */
+
+			left = FLAC__BITS_PER_WORD - bw->bits;
+			if(lsbits < left) {
+				bw->accum <<= lsbits;
+				bw->accum |= uval;
+				bw->bits += lsbits;
+			}
+			else {
+				/* if bw->bits == 0, left==FLAC__BITS_PER_WORD which will always
+				 * be > lsbits (because of previous assertions) so it would have
+				 * triggered the (lsbits<left) case above.
+				 */
+				FLAC__ASSERT(bw->bits);
+				FLAC__ASSERT(left < FLAC__BITS_PER_WORD);
+				bw->accum <<= left;
+				bw->accum |= uval >> (bw->bits = lsbits - left);
+				bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
+				bw->accum = uval; /* unused top bits can contain garbage */
+			}
+		}
+		vals++;
+		nvals--;
+	}
+	return true;
+}
+
+#if 0 /* UNUSED */
+FLAC__bool FLAC__bitwriter_write_golomb_signed(FLAC__BitWriter *bw, int val, uint32_t parameter)
+{
+	uint32_t total_bits, msbs, uval;
+	uint32_t k;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+	FLAC__ASSERT(parameter > 0);
+
+	/* fold signed to uint32_t */
+	if(val < 0)
+		uval = (uint32_t)(((-(++val)) << 1) + 1);
+	else
+		uval = (uint32_t)(val << 1);
+
+	k = FLAC__bitmath_ilog2(parameter);
+	if(parameter == 1u<<k) {
+		uint32_t pattern;
+
+		FLAC__ASSERT(k <= 30);
+
+		msbs = uval >> k;
+		total_bits = 1 + k + msbs;
+		pattern = 1 << k; /* the unary end bit */
+		pattern |= (uval & ((1u<<k)-1)); /* the binary LSBs */
+
+		if(total_bits <= 32) {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits))
+				return false;
+		}
+		else {
+			/* write the unary MSBs */
+			if(!FLAC__bitwriter_write_zeroes(bw, msbs))
+				return false;
+			/* write the unary end bit and binary LSBs */
+			if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, k+1))
+				return false;
+		}
+	}
+	else {
+		uint32_t q, r, d;
+
+		d = (1 << (k+1)) - parameter;
+		q = uval / parameter;
+		r = uval - (q * parameter);
+		/* write the unary MSBs */
+		if(!FLAC__bitwriter_write_zeroes(bw, q))
+			return false;
+		/* write the unary end bit */
+		if(!FLAC__bitwriter_write_raw_uint32(bw, 1, 1))
+			return false;
+		/* write the binary LSBs */
+		if(r >= d) {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, r+d, k+1))
+				return false;
+		}
+		else {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, r, k))
+				return false;
+		}
+	}
+	return true;
+}
+
+FLAC__bool FLAC__bitwriter_write_golomb_unsigned(FLAC__BitWriter *bw, uint32_t uval, uint32_t parameter)
+{
+	uint32_t total_bits, msbs;
+	uint32_t k;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+	FLAC__ASSERT(parameter > 0);
+
+	k = FLAC__bitmath_ilog2(parameter);
+	if(parameter == 1u<<k) {
+		uint32_t pattern;
+
+		FLAC__ASSERT(k <= 30);
+
+		msbs = uval >> k;
+		total_bits = 1 + k + msbs;
+		pattern = 1 << k; /* the unary end bit */
+		pattern |= (uval & ((1u<<k)-1)); /* the binary LSBs */
+
+		if(total_bits <= 32) {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits))
+				return false;
+		}
+		else {
+			/* write the unary MSBs */
+			if(!FLAC__bitwriter_write_zeroes(bw, msbs))
+				return false;
+			/* write the unary end bit and binary LSBs */
+			if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, k+1))
+				return false;
+		}
+	}
+	else {
+		uint32_t q, r, d;
+
+		d = (1 << (k+1)) - parameter;
+		q = uval / parameter;
+		r = uval - (q * parameter);
+		/* write the unary MSBs */
+		if(!FLAC__bitwriter_write_zeroes(bw, q))
+			return false;
+		/* write the unary end bit */
+		if(!FLAC__bitwriter_write_raw_uint32(bw, 1, 1))
+			return false;
+		/* write the binary LSBs */
+		if(r >= d) {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, r+d, k+1))
+				return false;
+		}
+		else {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, r, k))
+				return false;
+		}
+	}
+	return true;
+}
+#endif /* UNUSED */
+
+FLAC__bool FLAC__bitwriter_write_utf8_uint32(FLAC__BitWriter *bw, FLAC__uint32 val)
+{
+	FLAC__bool ok = 1;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+
+	if((val & 0x80000000) != 0) /* this version only handles 31 bits */
+		return false;
+
+	if(val < 0x80) {
+		return FLAC__bitwriter_write_raw_uint32_nocheck(bw, val, 8);
+	}
+	else if(val < 0x800) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xC0 | (val>>6), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
+	}
+	else if(val < 0x10000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xE0 | (val>>12), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
+	}
+	else if(val < 0x200000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF0 | (val>>18), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
+	}
+	else if(val < 0x4000000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF8 | (val>>24), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>18)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
+	}
+	else {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xFC | (val>>30), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>24)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>18)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
+	}
+
+	return ok;
+}
+
+FLAC__bool FLAC__bitwriter_write_utf8_uint64(FLAC__BitWriter *bw, FLAC__uint64 val)
+{
+	FLAC__bool ok = 1;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+
+	if((val & FLAC__U64L(0xFFFFFFF000000000)) != 0) /* this version only handles 36 bits */
+		return false;
+
+	if(val < 0x80) {
+		return FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)val, 8);
+	}
+	else if(val < 0x800) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xC0 | (FLAC__uint32)(val>>6), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+	else if(val < 0x10000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xE0 | (FLAC__uint32)(val>>12), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+	else if(val < 0x200000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF0 | (FLAC__uint32)(val>>18), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+	else if(val < 0x4000000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF8 | (FLAC__uint32)(val>>24), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+	else if(val < 0x80000000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xFC | (FLAC__uint32)(val>>30), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>24)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+	else {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xFE, 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>30)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>24)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+
+	return ok;
+}
+
+FLAC__bool FLAC__bitwriter_zero_pad_to_byte_boundary(FLAC__BitWriter *bw)
+{
+	/* 0-pad to byte boundary */
+	if(bw->bits & 7u)
+		return FLAC__bitwriter_write_zeroes(bw, 8 - (bw->bits & 7u));
+	else
+		return true;
+}
+
+/* These functions are declared inline in this file but are also callable as
+ * externs from elsewhere.
+ * According to the C99 spec, section 6.7.4, simply providing a function
+ * prototype in a header file without 'inline' and making the function inline
+ * in this file should be sufficient.
+ * Unfortunately, the Microsoft VS compiler doesn't pick them up externally. To
+ * fix that we add extern declarations here.
+ */
+extern FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, uint32_t bits);
+extern FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, uint32_t bits);
+extern FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, uint32_t bits);
+extern FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, uint32_t bits);
+extern FLAC__bool FLAC__bitwriter_write_raw_int64(FLAC__BitWriter *bw, FLAC__int64 val, uint32_t bits);
+extern FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val);
+extern FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], uint32_t nvals);
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/cpu.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/cpu.c
new file mode 100644
index 00000000..4b1b371e
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/cpu.c
@@ -0,0 +1,303 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+#include "share/compat.h"
+#include <stdlib.h>
+#include <string.h>
+
+#if defined _MSC_VER
+#include <intrin.h> /* for __cpuid() and _xgetbv() */
+#elif defined __GNUC__ && defined HAVE_CPUID_H
+#include <cpuid.h> /* for __get_cpuid() and __get_cpuid_max() */
+#endif
+
+#ifndef NDEBUG
+#include <stdio.h>
+#define dfprintf fprintf
+#else
+/* This is bad practice, it should be a static void empty function */
+#define dfprintf(file, format, ...)
+#endif
+
+#if defined(HAVE_SYS_AUXV_H)
+#include <sys/auxv.h>
+#endif
+
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && (defined FLAC__HAS_NASM || FLAC__HAS_X86INTRIN) && !defined FLAC__NO_ASM
+
+/* these are flags in EDX of CPUID AX=00000001 */
+static const uint32_t FLAC__CPUINFO_X86_CPUID_CMOV    = 0x00008000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_MMX     = 0x00800000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSE     = 0x02000000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSE2    = 0x04000000;
+
+/* these are flags in ECX of CPUID AX=00000001 */
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSE3    = 0x00000001;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSSE3   = 0x00000200;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSE41   = 0x00080000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSE42   = 0x00100000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_OSXSAVE = 0x08000000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_AVX     = 0x10000000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_FMA     = 0x00001000;
+
+/* these are flags in EBX of CPUID AX=00000007 */
+static const uint32_t FLAC__CPUINFO_X86_CPUID_AVX2    = 0x00000020;
+
+static uint32_t
+cpu_xgetbv_x86(void)
+{
+#if (defined _MSC_VER || defined __INTEL_COMPILER) && FLAC__AVX_SUPPORTED
+	return (uint32_t)_xgetbv(0);
+#elif defined __GNUC__
+	uint32_t lo, hi;
+	__asm__ volatile (".byte 0x0f, 0x01, 0xd0" : "=a"(lo), "=d"(hi) : "c" (0));
+	return lo;
+#else
+	return 0;
+#endif
+}
+
+static uint32_t
+cpu_have_cpuid(void)
+{
+#if defined FLAC__CPU_X86_64 || defined __i686__ || defined __SSE__ || (defined _M_IX86_FP && _M_IX86_FP > 0)
+	/* target CPU does have CPUID instruction */
+	return 1;
+#elif defined FLAC__HAS_NASM
+	return FLAC__cpu_have_cpuid_asm_ia32();
+#elif defined __GNUC__ && defined HAVE_CPUID_H
+	if (__get_cpuid_max(0, 0) != 0)
+		return 1;
+	else
+		return 0;
+#elif defined _MSC_VER
+	FLAC__uint32 flags1, flags2;
+	__asm {
+		pushfd
+		pushfd
+		pop		eax
+		mov		flags1, eax
+		xor		eax, 0x200000
+		push	eax
+		popfd
+		pushfd
+		pop		eax
+		mov		flags2, eax
+		popfd
+	}
+	if (((flags1^flags2) & 0x200000) != 0)
+		return 1;
+	else
+		return 0;
+#else
+	return 0;
+#endif
+}
+
+static void
+cpuinfo_x86(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx)
+{
+#if defined _MSC_VER
+	int cpuinfo[4];
+	int ext = level & 0x80000000;
+	__cpuid(cpuinfo, ext);
+	if ((uint32_t)cpuinfo[0] >= level) {
+#if FLAC__AVX_SUPPORTED
+		__cpuidex(cpuinfo, level, 0); /* for AVX2 detection */
+#else
+		__cpuid(cpuinfo, level); /* some old compilers don't support __cpuidex */
+#endif
+		*eax = cpuinfo[0]; *ebx = cpuinfo[1]; *ecx = cpuinfo[2]; *edx = cpuinfo[3];
+		return;
+	}
+#elif defined __GNUC__ && defined HAVE_CPUID_H
+	FLAC__uint32 ext = level & 0x80000000;
+	__cpuid(ext, *eax, *ebx, *ecx, *edx);
+	if (*eax >= level) {
+		__cpuid_count(level, 0, *eax, *ebx, *ecx, *edx);
+		return;
+	}
+#elif defined FLAC__HAS_NASM && defined FLAC__CPU_IA32
+	FLAC__cpu_info_asm_ia32(level, eax, ebx, ecx, edx);
+	return;
+#endif
+	*eax = *ebx = *ecx = *edx = 0;
+}
+
+#endif
+
+static void
+x86_cpu_info (FLAC__CPUInfo *info)
+{
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && (defined FLAC__HAS_NASM || FLAC__HAS_X86INTRIN) && !defined FLAC__NO_ASM
+	FLAC__bool x86_osxsave = false;
+	FLAC__bool os_avx = false;
+	FLAC__uint32 flags_eax, flags_ebx, flags_ecx, flags_edx;
+
+	info->use_asm = true; /* we assume a minimum of 80386 */
+	if (!cpu_have_cpuid())
+		return;
+
+	cpuinfo_x86(0, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
+	info->x86.intel = (flags_ebx == 0x756E6547 && flags_edx == 0x49656E69 && flags_ecx == 0x6C65746E) ? true : false; /* GenuineIntel */
+	cpuinfo_x86(1, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
+
+	info->x86.cmov  = (flags_edx & FLAC__CPUINFO_X86_CPUID_CMOV ) ? true : false;
+	info->x86.mmx   = (flags_edx & FLAC__CPUINFO_X86_CPUID_MMX  ) ? true : false;
+	info->x86.sse   = (flags_edx & FLAC__CPUINFO_X86_CPUID_SSE  ) ? true : false;
+	info->x86.sse2  = (flags_edx & FLAC__CPUINFO_X86_CPUID_SSE2 ) ? true : false;
+	info->x86.sse3  = (flags_ecx & FLAC__CPUINFO_X86_CPUID_SSE3 ) ? true : false;
+	info->x86.ssse3 = (flags_ecx & FLAC__CPUINFO_X86_CPUID_SSSE3) ? true : false;
+	info->x86.sse41 = (flags_ecx & FLAC__CPUINFO_X86_CPUID_SSE41) ? true : false;
+	info->x86.sse42 = (flags_ecx & FLAC__CPUINFO_X86_CPUID_SSE42) ? true : false;
+
+	if (FLAC__AVX_SUPPORTED) {
+		x86_osxsave     = (flags_ecx & FLAC__CPUINFO_X86_CPUID_OSXSAVE) ? true : false;
+		info->x86.avx   = (flags_ecx & FLAC__CPUINFO_X86_CPUID_AVX    ) ? true : false;
+		info->x86.fma   = (flags_ecx & FLAC__CPUINFO_X86_CPUID_FMA    ) ? true : false;
+		cpuinfo_x86(7, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
+		info->x86.avx2  = (flags_ebx & FLAC__CPUINFO_X86_CPUID_AVX2   ) ? true : false;
+	}
+
+#if defined FLAC__CPU_IA32
+	dfprintf(stderr, "CPU info (IA-32):\n");
+#else
+	dfprintf(stderr, "CPU info (x86-64):\n");
+#endif
+	dfprintf(stderr, "  CMOV ....... %c\n", info->x86.cmov    ? 'Y' : 'n');
+	dfprintf(stderr, "  MMX ........ %c\n", info->x86.mmx     ? 'Y' : 'n');
+	dfprintf(stderr, "  SSE ........ %c\n", info->x86.sse     ? 'Y' : 'n');
+	dfprintf(stderr, "  SSE2 ....... %c\n", info->x86.sse2    ? 'Y' : 'n');
+	dfprintf(stderr, "  SSE3 ....... %c\n", info->x86.sse3    ? 'Y' : 'n');
+	dfprintf(stderr, "  SSSE3 ...... %c\n", info->x86.ssse3   ? 'Y' : 'n');
+	dfprintf(stderr, "  SSE41 ...... %c\n", info->x86.sse41   ? 'Y' : 'n');
+	dfprintf(stderr, "  SSE42 ...... %c\n", info->x86.sse42   ? 'Y' : 'n');
+
+	if (FLAC__AVX_SUPPORTED) {
+		dfprintf(stderr, "  AVX ........ %c\n", info->x86.avx     ? 'Y' : 'n');
+		dfprintf(stderr, "  FMA ........ %c\n", info->x86.fma     ? 'Y' : 'n');
+		dfprintf(stderr, "  AVX2 ....... %c\n", info->x86.avx2    ? 'Y' : 'n');
+	}
+
+	/*
+	 * now have to check for OS support of AVX instructions
+	 */
+	if (FLAC__AVX_SUPPORTED && info->x86.avx && x86_osxsave && (cpu_xgetbv_x86() & 0x6) == 0x6) {
+		os_avx = true;
+	}
+	if (os_avx) {
+		dfprintf(stderr, "  AVX OS sup . %c\n", info->x86.avx ? 'Y' : 'n');
+	}
+	if (!os_avx) {
+		/* no OS AVX support */
+		info->x86.avx     = false;
+		info->x86.avx2    = false;
+		info->x86.fma     = false;
+	}
+#else
+	info->use_asm = false;
+#endif
+}
+
+static void
+ppc_cpu_info (FLAC__CPUInfo *info)
+{
+#if defined FLAC__CPU_PPC
+#ifndef PPC_FEATURE2_ARCH_3_00
+#define PPC_FEATURE2_ARCH_3_00		0x00800000
+#endif
+
+#ifndef PPC_FEATURE2_ARCH_2_07
+#define PPC_FEATURE2_ARCH_2_07		0x80000000
+#endif
+
+#if defined (__linux__) && defined(HAVE_GETAUXVAL)
+	if (getauxval(AT_HWCAP2) & PPC_FEATURE2_ARCH_3_00) {
+		info->ppc.arch_3_00 = true;
+	} else if (getauxval(AT_HWCAP2) & PPC_FEATURE2_ARCH_2_07) {
+		info->ppc.arch_2_07 = true;
+	}
+#elif defined(__FreeBSD__) && defined(HAVE_SYS_AUXV_H)
+	unsigned long hwcaps;
+	elf_aux_info(AT_HWCAP2, &hwcaps, sizeof(hwcaps));
+	if (hwcaps & PPC_FEATURE2_ARCH_3_00) {
+		info->ppc.arch_3_00 = true;
+	} else if (hwcaps & PPC_FEATURE2_ARCH_2_07) {
+		info->ppc.arch_2_07 = true;
+	}
+#elif defined(__APPLE__)
+	/* no Mac OS X version supports CPU with Power AVI v2.07 or better */
+	info->ppc.arch_2_07 = false;
+	info->ppc.arch_3_00 = false;
+#else
+	info->ppc.arch_2_07 = false;
+	info->ppc.arch_3_00 = false;
+#endif
+
+#else
+	info->ppc.arch_2_07 = false;
+	info->ppc.arch_3_00 = false;
+#endif
+}
+
+void FLAC__cpu_info (FLAC__CPUInfo *info)
+{
+	memset(info, 0, sizeof(*info));
+
+#ifdef FLAC__CPU_IA32
+	info->type = FLAC__CPUINFO_TYPE_IA32;
+#elif defined FLAC__CPU_X86_64
+	info->type = FLAC__CPUINFO_TYPE_X86_64;
+#elif defined FLAC__CPU_PPC
+	info->type = FLAC__CPUINFO_TYPE_PPC;
+#else
+	info->type = FLAC__CPUINFO_TYPE_UNKNOWN;
+#endif
+
+	switch (info->type) {
+	case FLAC__CPUINFO_TYPE_IA32: /* fallthrough */
+	case FLAC__CPUINFO_TYPE_X86_64:
+		x86_cpu_info (info);
+		break;
+	case FLAC__CPUINFO_TYPE_PPC:
+		ppc_cpu_info (info);
+		break;
+	default:
+		info->use_asm = false;
+		break;
+	}
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/crc.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/crc.c
new file mode 100644
index 00000000..4f47e986
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/crc.c
@@ -0,0 +1,436 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/crc.h"
+
+/* CRC-8, poly = x^8 + x^2 + x^1 + x^0, init = 0 */
+
+FLAC__uint8 const FLAC__crc8_table[256] = {
+	0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15,
+	0x38, 0x3F, 0x36, 0x31, 0x24, 0x23, 0x2A, 0x2D,
+	0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65,
+	0x48, 0x4F, 0x46, 0x41, 0x54, 0x53, 0x5A, 0x5D,
+	0xE0, 0xE7, 0xEE, 0xE9, 0xFC, 0xFB, 0xF2, 0xF5,
+	0xD8, 0xDF, 0xD6, 0xD1, 0xC4, 0xC3, 0xCA, 0xCD,
+	0x90, 0x97, 0x9E, 0x99, 0x8C, 0x8B, 0x82, 0x85,
+	0xA8, 0xAF, 0xA6, 0xA1, 0xB4, 0xB3, 0xBA, 0xBD,
+	0xC7, 0xC0, 0xC9, 0xCE, 0xDB, 0xDC, 0xD5, 0xD2,
+	0xFF, 0xF8, 0xF1, 0xF6, 0xE3, 0xE4, 0xED, 0xEA,
+	0xB7, 0xB0, 0xB9, 0xBE, 0xAB, 0xAC, 0xA5, 0xA2,
+	0x8F, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9D, 0x9A,
+	0x27, 0x20, 0x29, 0x2E, 0x3B, 0x3C, 0x35, 0x32,
+	0x1F, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0D, 0x0A,
+	0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42,
+	0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A,
+	0x89, 0x8E, 0x87, 0x80, 0x95, 0x92, 0x9B, 0x9C,
+	0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4,
+	0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC,
+	0xC1, 0xC6, 0xCF, 0xC8, 0xDD, 0xDA, 0xD3, 0xD4,
+	0x69, 0x6E, 0x67, 0x60, 0x75, 0x72, 0x7B, 0x7C,
+	0x51, 0x56, 0x5F, 0x58, 0x4D, 0x4A, 0x43, 0x44,
+	0x19, 0x1E, 0x17, 0x10, 0x05, 0x02, 0x0B, 0x0C,
+	0x21, 0x26, 0x2F, 0x28, 0x3D, 0x3A, 0x33, 0x34,
+	0x4E, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5C, 0x5B,
+	0x76, 0x71, 0x78, 0x7F, 0x6A, 0x6D, 0x64, 0x63,
+	0x3E, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2C, 0x2B,
+	0x06, 0x01, 0x08, 0x0F, 0x1A, 0x1D, 0x14, 0x13,
+	0xAE, 0xA9, 0xA0, 0xA7, 0xB2, 0xB5, 0xBC, 0xBB,
+	0x96, 0x91, 0x98, 0x9F, 0x8A, 0x8D, 0x84, 0x83,
+	0xDE, 0xD9, 0xD0, 0xD7, 0xC2, 0xC5, 0xCC, 0xCB,
+	0xE6, 0xE1, 0xE8, 0xEF, 0xFA, 0xFD, 0xF4, 0xF3
+};
+
+/* CRC-16, poly = x^16 + x^15 + x^2 + x^0, init = 0 */
+
+FLAC__uint16 const FLAC__crc16_table[8][256] = {
+  { 0x0000,  0x8005,  0x800f,  0x000a,  0x801b,  0x001e,  0x0014,  0x8011,
+	0x8033,  0x0036,  0x003c,  0x8039,  0x0028,  0x802d,  0x8027,  0x0022,
+	0x8063,  0x0066,  0x006c,  0x8069,  0x0078,  0x807d,  0x8077,  0x0072,
+	0x0050,  0x8055,  0x805f,  0x005a,  0x804b,  0x004e,  0x0044,  0x8041,
+	0x80c3,  0x00c6,  0x00cc,  0x80c9,  0x00d8,  0x80dd,  0x80d7,  0x00d2,
+	0x00f0,  0x80f5,  0x80ff,  0x00fa,  0x80eb,  0x00ee,  0x00e4,  0x80e1,
+	0x00a0,  0x80a5,  0x80af,  0x00aa,  0x80bb,  0x00be,  0x00b4,  0x80b1,
+	0x8093,  0x0096,  0x009c,  0x8099,  0x0088,  0x808d,  0x8087,  0x0082,
+	0x8183,  0x0186,  0x018c,  0x8189,  0x0198,  0x819d,  0x8197,  0x0192,
+	0x01b0,  0x81b5,  0x81bf,  0x01ba,  0x81ab,  0x01ae,  0x01a4,  0x81a1,
+	0x01e0,  0x81e5,  0x81ef,  0x01ea,  0x81fb,  0x01fe,  0x01f4,  0x81f1,
+	0x81d3,  0x01d6,  0x01dc,  0x81d9,  0x01c8,  0x81cd,  0x81c7,  0x01c2,
+	0x0140,  0x8145,  0x814f,  0x014a,  0x815b,  0x015e,  0x0154,  0x8151,
+	0x8173,  0x0176,  0x017c,  0x8179,  0x0168,  0x816d,  0x8167,  0x0162,
+	0x8123,  0x0126,  0x012c,  0x8129,  0x0138,  0x813d,  0x8137,  0x0132,
+	0x0110,  0x8115,  0x811f,  0x011a,  0x810b,  0x010e,  0x0104,  0x8101,
+	0x8303,  0x0306,  0x030c,  0x8309,  0x0318,  0x831d,  0x8317,  0x0312,
+	0x0330,  0x8335,  0x833f,  0x033a,  0x832b,  0x032e,  0x0324,  0x8321,
+	0x0360,  0x8365,  0x836f,  0x036a,  0x837b,  0x037e,  0x0374,  0x8371,
+	0x8353,  0x0356,  0x035c,  0x8359,  0x0348,  0x834d,  0x8347,  0x0342,
+	0x03c0,  0x83c5,  0x83cf,  0x03ca,  0x83db,  0x03de,  0x03d4,  0x83d1,
+	0x83f3,  0x03f6,  0x03fc,  0x83f9,  0x03e8,  0x83ed,  0x83e7,  0x03e2,
+	0x83a3,  0x03a6,  0x03ac,  0x83a9,  0x03b8,  0x83bd,  0x83b7,  0x03b2,
+	0x0390,  0x8395,  0x839f,  0x039a,  0x838b,  0x038e,  0x0384,  0x8381,
+	0x0280,  0x8285,  0x828f,  0x028a,  0x829b,  0x029e,  0x0294,  0x8291,
+	0x82b3,  0x02b6,  0x02bc,  0x82b9,  0x02a8,  0x82ad,  0x82a7,  0x02a2,
+	0x82e3,  0x02e6,  0x02ec,  0x82e9,  0x02f8,  0x82fd,  0x82f7,  0x02f2,
+	0x02d0,  0x82d5,  0x82df,  0x02da,  0x82cb,  0x02ce,  0x02c4,  0x82c1,
+	0x8243,  0x0246,  0x024c,  0x8249,  0x0258,  0x825d,  0x8257,  0x0252,
+	0x0270,  0x8275,  0x827f,  0x027a,  0x826b,  0x026e,  0x0264,  0x8261,
+	0x0220,  0x8225,  0x822f,  0x022a,  0x823b,  0x023e,  0x0234,  0x8231,
+	0x8213,  0x0216,  0x021c,  0x8219,  0x0208,  0x820d,  0x8207,  0x0202 },
+
+  { 0x0000,  0x8603,  0x8c03,  0x0a00,  0x9803,  0x1e00,  0x1400,  0x9203,
+	0xb003,  0x3600,  0x3c00,  0xba03,  0x2800,  0xae03,  0xa403,  0x2200,
+	0xe003,  0x6600,  0x6c00,  0xea03,  0x7800,  0xfe03,  0xf403,  0x7200,
+	0x5000,  0xd603,  0xdc03,  0x5a00,  0xc803,  0x4e00,  0x4400,  0xc203,
+	0x4003,  0xc600,  0xcc00,  0x4a03,  0xd800,  0x5e03,  0x5403,  0xd200,
+	0xf000,  0x7603,  0x7c03,  0xfa00,  0x6803,  0xee00,  0xe400,  0x6203,
+	0xa000,  0x2603,  0x2c03,  0xaa00,  0x3803,  0xbe00,  0xb400,  0x3203,
+	0x1003,  0x9600,  0x9c00,  0x1a03,  0x8800,  0x0e03,  0x0403,  0x8200,
+	0x8006,  0x0605,  0x0c05,  0x8a06,  0x1805,  0x9e06,  0x9406,  0x1205,
+	0x3005,  0xb606,  0xbc06,  0x3a05,  0xa806,  0x2e05,  0x2405,  0xa206,
+	0x6005,  0xe606,  0xec06,  0x6a05,  0xf806,  0x7e05,  0x7405,  0xf206,
+	0xd006,  0x5605,  0x5c05,  0xda06,  0x4805,  0xce06,  0xc406,  0x4205,
+	0xc005,  0x4606,  0x4c06,  0xca05,  0x5806,  0xde05,  0xd405,  0x5206,
+	0x7006,  0xf605,  0xfc05,  0x7a06,  0xe805,  0x6e06,  0x6406,  0xe205,
+	0x2006,  0xa605,  0xac05,  0x2a06,  0xb805,  0x3e06,  0x3406,  0xb205,
+	0x9005,  0x1606,  0x1c06,  0x9a05,  0x0806,  0x8e05,  0x8405,  0x0206,
+	0x8009,  0x060a,  0x0c0a,  0x8a09,  0x180a,  0x9e09,  0x9409,  0x120a,
+	0x300a,  0xb609,  0xbc09,  0x3a0a,  0xa809,  0x2e0a,  0x240a,  0xa209,
+	0x600a,  0xe609,  0xec09,  0x6a0a,  0xf809,  0x7e0a,  0x740a,  0xf209,
+	0xd009,  0x560a,  0x5c0a,  0xda09,  0x480a,  0xce09,  0xc409,  0x420a,
+	0xc00a,  0x4609,  0x4c09,  0xca0a,  0x5809,  0xde0a,  0xd40a,  0x5209,
+	0x7009,  0xf60a,  0xfc0a,  0x7a09,  0xe80a,  0x6e09,  0x6409,  0xe20a,
+	0x2009,  0xa60a,  0xac0a,  0x2a09,  0xb80a,  0x3e09,  0x3409,  0xb20a,
+	0x900a,  0x1609,  0x1c09,  0x9a0a,  0x0809,  0x8e0a,  0x840a,  0x0209,
+	0x000f,  0x860c,  0x8c0c,  0x0a0f,  0x980c,  0x1e0f,  0x140f,  0x920c,
+	0xb00c,  0x360f,  0x3c0f,  0xba0c,  0x280f,  0xae0c,  0xa40c,  0x220f,
+	0xe00c,  0x660f,  0x6c0f,  0xea0c,  0x780f,  0xfe0c,  0xf40c,  0x720f,
+	0x500f,  0xd60c,  0xdc0c,  0x5a0f,  0xc80c,  0x4e0f,  0x440f,  0xc20c,
+	0x400c,  0xc60f,  0xcc0f,  0x4a0c,  0xd80f,  0x5e0c,  0x540c,  0xd20f,
+	0xf00f,  0x760c,  0x7c0c,  0xfa0f,  0x680c,  0xee0f,  0xe40f,  0x620c,
+	0xa00f,  0x260c,  0x2c0c,  0xaa0f,  0x380c,  0xbe0f,  0xb40f,  0x320c,
+	0x100c,  0x960f,  0x9c0f,  0x1a0c,  0x880f,  0x0e0c,  0x040c,  0x820f },
+
+  { 0x0000,  0x8017,  0x802b,  0x003c,  0x8053,  0x0044,  0x0078,  0x806f,
+	0x80a3,  0x00b4,  0x0088,  0x809f,  0x00f0,  0x80e7,  0x80db,  0x00cc,
+	0x8143,  0x0154,  0x0168,  0x817f,  0x0110,  0x8107,  0x813b,  0x012c,
+	0x01e0,  0x81f7,  0x81cb,  0x01dc,  0x81b3,  0x01a4,  0x0198,  0x818f,
+	0x8283,  0x0294,  0x02a8,  0x82bf,  0x02d0,  0x82c7,  0x82fb,  0x02ec,
+	0x0220,  0x8237,  0x820b,  0x021c,  0x8273,  0x0264,  0x0258,  0x824f,
+	0x03c0,  0x83d7,  0x83eb,  0x03fc,  0x8393,  0x0384,  0x03b8,  0x83af,
+	0x8363,  0x0374,  0x0348,  0x835f,  0x0330,  0x8327,  0x831b,  0x030c,
+	0x8503,  0x0514,  0x0528,  0x853f,  0x0550,  0x8547,  0x857b,  0x056c,
+	0x05a0,  0x85b7,  0x858b,  0x059c,  0x85f3,  0x05e4,  0x05d8,  0x85cf,
+	0x0440,  0x8457,  0x846b,  0x047c,  0x8413,  0x0404,  0x0438,  0x842f,
+	0x84e3,  0x04f4,  0x04c8,  0x84df,  0x04b0,  0x84a7,  0x849b,  0x048c,
+	0x0780,  0x8797,  0x87ab,  0x07bc,  0x87d3,  0x07c4,  0x07f8,  0x87ef,
+	0x8723,  0x0734,  0x0708,  0x871f,  0x0770,  0x8767,  0x875b,  0x074c,
+	0x86c3,  0x06d4,  0x06e8,  0x86ff,  0x0690,  0x8687,  0x86bb,  0x06ac,
+	0x0660,  0x8677,  0x864b,  0x065c,  0x8633,  0x0624,  0x0618,  0x860f,
+	0x8a03,  0x0a14,  0x0a28,  0x8a3f,  0x0a50,  0x8a47,  0x8a7b,  0x0a6c,
+	0x0aa0,  0x8ab7,  0x8a8b,  0x0a9c,  0x8af3,  0x0ae4,  0x0ad8,  0x8acf,
+	0x0b40,  0x8b57,  0x8b6b,  0x0b7c,  0x8b13,  0x0b04,  0x0b38,  0x8b2f,
+	0x8be3,  0x0bf4,  0x0bc8,  0x8bdf,  0x0bb0,  0x8ba7,  0x8b9b,  0x0b8c,
+	0x0880,  0x8897,  0x88ab,  0x08bc,  0x88d3,  0x08c4,  0x08f8,  0x88ef,
+	0x8823,  0x0834,  0x0808,  0x881f,  0x0870,  0x8867,  0x885b,  0x084c,
+	0x89c3,  0x09d4,  0x09e8,  0x89ff,  0x0990,  0x8987,  0x89bb,  0x09ac,
+	0x0960,  0x8977,  0x894b,  0x095c,  0x8933,  0x0924,  0x0918,  0x890f,
+	0x0f00,  0x8f17,  0x8f2b,  0x0f3c,  0x8f53,  0x0f44,  0x0f78,  0x8f6f,
+	0x8fa3,  0x0fb4,  0x0f88,  0x8f9f,  0x0ff0,  0x8fe7,  0x8fdb,  0x0fcc,
+	0x8e43,  0x0e54,  0x0e68,  0x8e7f,  0x0e10,  0x8e07,  0x8e3b,  0x0e2c,
+	0x0ee0,  0x8ef7,  0x8ecb,  0x0edc,  0x8eb3,  0x0ea4,  0x0e98,  0x8e8f,
+	0x8d83,  0x0d94,  0x0da8,  0x8dbf,  0x0dd0,  0x8dc7,  0x8dfb,  0x0dec,
+	0x0d20,  0x8d37,  0x8d0b,  0x0d1c,  0x8d73,  0x0d64,  0x0d58,  0x8d4f,
+	0x0cc0,  0x8cd7,  0x8ceb,  0x0cfc,  0x8c93,  0x0c84,  0x0cb8,  0x8caf,
+	0x8c63,  0x0c74,  0x0c48,  0x8c5f,  0x0c30,  0x8c27,  0x8c1b,  0x0c0c },
+
+  { 0x0000,  0x9403,  0xa803,  0x3c00,  0xd003,  0x4400,  0x7800,  0xec03,
+	0x2003,  0xb400,  0x8800,  0x1c03,  0xf000,  0x6403,  0x5803,  0xcc00,
+	0x4006,  0xd405,  0xe805,  0x7c06,  0x9005,  0x0406,  0x3806,  0xac05,
+	0x6005,  0xf406,  0xc806,  0x5c05,  0xb006,  0x2405,  0x1805,  0x8c06,
+	0x800c,  0x140f,  0x280f,  0xbc0c,  0x500f,  0xc40c,  0xf80c,  0x6c0f,
+	0xa00f,  0x340c,  0x080c,  0x9c0f,  0x700c,  0xe40f,  0xd80f,  0x4c0c,
+	0xc00a,  0x5409,  0x6809,  0xfc0a,  0x1009,  0x840a,  0xb80a,  0x2c09,
+	0xe009,  0x740a,  0x480a,  0xdc09,  0x300a,  0xa409,  0x9809,  0x0c0a,
+	0x801d,  0x141e,  0x281e,  0xbc1d,  0x501e,  0xc41d,  0xf81d,  0x6c1e,
+	0xa01e,  0x341d,  0x081d,  0x9c1e,  0x701d,  0xe41e,  0xd81e,  0x4c1d,
+	0xc01b,  0x5418,  0x6818,  0xfc1b,  0x1018,  0x841b,  0xb81b,  0x2c18,
+	0xe018,  0x741b,  0x481b,  0xdc18,  0x301b,  0xa418,  0x9818,  0x0c1b,
+	0x0011,  0x9412,  0xa812,  0x3c11,  0xd012,  0x4411,  0x7811,  0xec12,
+	0x2012,  0xb411,  0x8811,  0x1c12,  0xf011,  0x6412,  0x5812,  0xcc11,
+	0x4017,  0xd414,  0xe814,  0x7c17,  0x9014,  0x0417,  0x3817,  0xac14,
+	0x6014,  0xf417,  0xc817,  0x5c14,  0xb017,  0x2414,  0x1814,  0x8c17,
+	0x803f,  0x143c,  0x283c,  0xbc3f,  0x503c,  0xc43f,  0xf83f,  0x6c3c,
+	0xa03c,  0x343f,  0x083f,  0x9c3c,  0x703f,  0xe43c,  0xd83c,  0x4c3f,
+	0xc039,  0x543a,  0x683a,  0xfc39,  0x103a,  0x8439,  0xb839,  0x2c3a,
+	0xe03a,  0x7439,  0x4839,  0xdc3a,  0x3039,  0xa43a,  0x983a,  0x0c39,
+	0x0033,  0x9430,  0xa830,  0x3c33,  0xd030,  0x4433,  0x7833,  0xec30,
+	0x2030,  0xb433,  0x8833,  0x1c30,  0xf033,  0x6430,  0x5830,  0xcc33,
+	0x4035,  0xd436,  0xe836,  0x7c35,  0x9036,  0x0435,  0x3835,  0xac36,
+	0x6036,  0xf435,  0xc835,  0x5c36,  0xb035,  0x2436,  0x1836,  0x8c35,
+	0x0022,  0x9421,  0xa821,  0x3c22,  0xd021,  0x4422,  0x7822,  0xec21,
+	0x2021,  0xb422,  0x8822,  0x1c21,  0xf022,  0x6421,  0x5821,  0xcc22,
+	0x4024,  0xd427,  0xe827,  0x7c24,  0x9027,  0x0424,  0x3824,  0xac27,
+	0x6027,  0xf424,  0xc824,  0x5c27,  0xb024,  0x2427,  0x1827,  0x8c24,
+	0x802e,  0x142d,  0x282d,  0xbc2e,  0x502d,  0xc42e,  0xf82e,  0x6c2d,
+	0xa02d,  0x342e,  0x082e,  0x9c2d,  0x702e,  0xe42d,  0xd82d,  0x4c2e,
+	0xc028,  0x542b,  0x682b,  0xfc28,  0x102b,  0x8428,  0xb828,  0x2c2b,
+	0xe02b,  0x7428,  0x4828,  0xdc2b,  0x3028,  0xa42b,  0x982b,  0x0c28 },
+
+  { 0x0000,  0x807b,  0x80f3,  0x0088,  0x81e3,  0x0198,  0x0110,  0x816b,
+	0x83c3,  0x03b8,  0x0330,  0x834b,  0x0220,  0x825b,  0x82d3,  0x02a8,
+	0x8783,  0x07f8,  0x0770,  0x870b,  0x0660,  0x861b,  0x8693,  0x06e8,
+	0x0440,  0x843b,  0x84b3,  0x04c8,  0x85a3,  0x05d8,  0x0550,  0x852b,
+	0x8f03,  0x0f78,  0x0ff0,  0x8f8b,  0x0ee0,  0x8e9b,  0x8e13,  0x0e68,
+	0x0cc0,  0x8cbb,  0x8c33,  0x0c48,  0x8d23,  0x0d58,  0x0dd0,  0x8dab,
+	0x0880,  0x88fb,  0x8873,  0x0808,  0x8963,  0x0918,  0x0990,  0x89eb,
+	0x8b43,  0x0b38,  0x0bb0,  0x8bcb,  0x0aa0,  0x8adb,  0x8a53,  0x0a28,
+	0x9e03,  0x1e78,  0x1ef0,  0x9e8b,  0x1fe0,  0x9f9b,  0x9f13,  0x1f68,
+	0x1dc0,  0x9dbb,  0x9d33,  0x1d48,  0x9c23,  0x1c58,  0x1cd0,  0x9cab,
+	0x1980,  0x99fb,  0x9973,  0x1908,  0x9863,  0x1818,  0x1890,  0x98eb,
+	0x9a43,  0x1a38,  0x1ab0,  0x9acb,  0x1ba0,  0x9bdb,  0x9b53,  0x1b28,
+	0x1100,  0x917b,  0x91f3,  0x1188,  0x90e3,  0x1098,  0x1010,  0x906b,
+	0x92c3,  0x12b8,  0x1230,  0x924b,  0x1320,  0x935b,  0x93d3,  0x13a8,
+	0x9683,  0x16f8,  0x1670,  0x960b,  0x1760,  0x971b,  0x9793,  0x17e8,
+	0x1540,  0x953b,  0x95b3,  0x15c8,  0x94a3,  0x14d8,  0x1450,  0x942b,
+	0xbc03,  0x3c78,  0x3cf0,  0xbc8b,  0x3de0,  0xbd9b,  0xbd13,  0x3d68,
+	0x3fc0,  0xbfbb,  0xbf33,  0x3f48,  0xbe23,  0x3e58,  0x3ed0,  0xbeab,
+	0x3b80,  0xbbfb,  0xbb73,  0x3b08,  0xba63,  0x3a18,  0x3a90,  0xbaeb,
+	0xb843,  0x3838,  0x38b0,  0xb8cb,  0x39a0,  0xb9db,  0xb953,  0x3928,
+	0x3300,  0xb37b,  0xb3f3,  0x3388,  0xb2e3,  0x3298,  0x3210,  0xb26b,
+	0xb0c3,  0x30b8,  0x3030,  0xb04b,  0x3120,  0xb15b,  0xb1d3,  0x31a8,
+	0xb483,  0x34f8,  0x3470,  0xb40b,  0x3560,  0xb51b,  0xb593,  0x35e8,
+	0x3740,  0xb73b,  0xb7b3,  0x37c8,  0xb6a3,  0x36d8,  0x3650,  0xb62b,
+	0x2200,  0xa27b,  0xa2f3,  0x2288,  0xa3e3,  0x2398,  0x2310,  0xa36b,
+	0xa1c3,  0x21b8,  0x2130,  0xa14b,  0x2020,  0xa05b,  0xa0d3,  0x20a8,
+	0xa583,  0x25f8,  0x2570,  0xa50b,  0x2460,  0xa41b,  0xa493,  0x24e8,
+	0x2640,  0xa63b,  0xa6b3,  0x26c8,  0xa7a3,  0x27d8,  0x2750,  0xa72b,
+	0xad03,  0x2d78,  0x2df0,  0xad8b,  0x2ce0,  0xac9b,  0xac13,  0x2c68,
+	0x2ec0,  0xaebb,  0xae33,  0x2e48,  0xaf23,  0x2f58,  0x2fd0,  0xafab,
+	0x2a80,  0xaafb,  0xaa73,  0x2a08,  0xab63,  0x2b18,  0x2b90,  0xabeb,
+	0xa943,  0x2938,  0x29b0,  0xa9cb,  0x28a0,  0xa8db,  0xa853,  0x2828 },
+
+  { 0x0000,  0xf803,  0x7003,  0x8800,  0xe006,  0x1805,  0x9005,  0x6806,
+	0x4009,  0xb80a,  0x300a,  0xc809,  0xa00f,  0x580c,  0xd00c,  0x280f,
+	0x8012,  0x7811,  0xf011,  0x0812,  0x6014,  0x9817,  0x1017,  0xe814,
+	0xc01b,  0x3818,  0xb018,  0x481b,  0x201d,  0xd81e,  0x501e,  0xa81d,
+	0x8021,  0x7822,  0xf022,  0x0821,  0x6027,  0x9824,  0x1024,  0xe827,
+	0xc028,  0x382b,  0xb02b,  0x4828,  0x202e,  0xd82d,  0x502d,  0xa82e,
+	0x0033,  0xf830,  0x7030,  0x8833,  0xe035,  0x1836,  0x9036,  0x6835,
+	0x403a,  0xb839,  0x3039,  0xc83a,  0xa03c,  0x583f,  0xd03f,  0x283c,
+	0x8047,  0x7844,  0xf044,  0x0847,  0x6041,  0x9842,  0x1042,  0xe841,
+	0xc04e,  0x384d,  0xb04d,  0x484e,  0x2048,  0xd84b,  0x504b,  0xa848,
+	0x0055,  0xf856,  0x7056,  0x8855,  0xe053,  0x1850,  0x9050,  0x6853,
+	0x405c,  0xb85f,  0x305f,  0xc85c,  0xa05a,  0x5859,  0xd059,  0x285a,
+	0x0066,  0xf865,  0x7065,  0x8866,  0xe060,  0x1863,  0x9063,  0x6860,
+	0x406f,  0xb86c,  0x306c,  0xc86f,  0xa069,  0x586a,  0xd06a,  0x2869,
+	0x8074,  0x7877,  0xf077,  0x0874,  0x6072,  0x9871,  0x1071,  0xe872,
+	0xc07d,  0x387e,  0xb07e,  0x487d,  0x207b,  0xd878,  0x5078,  0xa87b,
+	0x808b,  0x7888,  0xf088,  0x088b,  0x608d,  0x988e,  0x108e,  0xe88d,
+	0xc082,  0x3881,  0xb081,  0x4882,  0x2084,  0xd887,  0x5087,  0xa884,
+	0x0099,  0xf89a,  0x709a,  0x8899,  0xe09f,  0x189c,  0x909c,  0x689f,
+	0x4090,  0xb893,  0x3093,  0xc890,  0xa096,  0x5895,  0xd095,  0x2896,
+	0x00aa,  0xf8a9,  0x70a9,  0x88aa,  0xe0ac,  0x18af,  0x90af,  0x68ac,
+	0x40a3,  0xb8a0,  0x30a0,  0xc8a3,  0xa0a5,  0x58a6,  0xd0a6,  0x28a5,
+	0x80b8,  0x78bb,  0xf0bb,  0x08b8,  0x60be,  0x98bd,  0x10bd,  0xe8be,
+	0xc0b1,  0x38b2,  0xb0b2,  0x48b1,  0x20b7,  0xd8b4,  0x50b4,  0xa8b7,
+	0x00cc,  0xf8cf,  0x70cf,  0x88cc,  0xe0ca,  0x18c9,  0x90c9,  0x68ca,
+	0x40c5,  0xb8c6,  0x30c6,  0xc8c5,  0xa0c3,  0x58c0,  0xd0c0,  0x28c3,
+	0x80de,  0x78dd,  0xf0dd,  0x08de,  0x60d8,  0x98db,  0x10db,  0xe8d8,
+	0xc0d7,  0x38d4,  0xb0d4,  0x48d7,  0x20d1,  0xd8d2,  0x50d2,  0xa8d1,
+	0x80ed,  0x78ee,  0xf0ee,  0x08ed,  0x60eb,  0x98e8,  0x10e8,  0xe8eb,
+	0xc0e4,  0x38e7,  0xb0e7,  0x48e4,  0x20e2,  0xd8e1,  0x50e1,  0xa8e2,
+	0x00ff,  0xf8fc,  0x70fc,  0x88ff,  0xe0f9,  0x18fa,  0x90fa,  0x68f9,
+	0x40f6,  0xb8f5,  0x30f5,  0xc8f6,  0xa0f0,  0x58f3,  0xd0f3,  0x28f0 },
+
+  { 0x0000,  0x8113,  0x8223,  0x0330,  0x8443,  0x0550,  0x0660,  0x8773,
+	0x8883,  0x0990,  0x0aa0,  0x8bb3,  0x0cc0,  0x8dd3,  0x8ee3,  0x0ff0,
+	0x9103,  0x1010,  0x1320,  0x9233,  0x1540,  0x9453,  0x9763,  0x1670,
+	0x1980,  0x9893,  0x9ba3,  0x1ab0,  0x9dc3,  0x1cd0,  0x1fe0,  0x9ef3,
+	0xa203,  0x2310,  0x2020,  0xa133,  0x2640,  0xa753,  0xa463,  0x2570,
+	0x2a80,  0xab93,  0xa8a3,  0x29b0,  0xaec3,  0x2fd0,  0x2ce0,  0xadf3,
+	0x3300,  0xb213,  0xb123,  0x3030,  0xb743,  0x3650,  0x3560,  0xb473,
+	0xbb83,  0x3a90,  0x39a0,  0xb8b3,  0x3fc0,  0xbed3,  0xbde3,  0x3cf0,
+	0xc403,  0x4510,  0x4620,  0xc733,  0x4040,  0xc153,  0xc263,  0x4370,
+	0x4c80,  0xcd93,  0xcea3,  0x4fb0,  0xc8c3,  0x49d0,  0x4ae0,  0xcbf3,
+	0x5500,  0xd413,  0xd723,  0x5630,  0xd143,  0x5050,  0x5360,  0xd273,
+	0xdd83,  0x5c90,  0x5fa0,  0xdeb3,  0x59c0,  0xd8d3,  0xdbe3,  0x5af0,
+	0x6600,  0xe713,  0xe423,  0x6530,  0xe243,  0x6350,  0x6060,  0xe173,
+	0xee83,  0x6f90,  0x6ca0,  0xedb3,  0x6ac0,  0xebd3,  0xe8e3,  0x69f0,
+	0xf703,  0x7610,  0x7520,  0xf433,  0x7340,  0xf253,  0xf163,  0x7070,
+	0x7f80,  0xfe93,  0xfda3,  0x7cb0,  0xfbc3,  0x7ad0,  0x79e0,  0xf8f3,
+	0x0803,  0x8910,  0x8a20,  0x0b33,  0x8c40,  0x0d53,  0x0e63,  0x8f70,
+	0x8080,  0x0193,  0x02a3,  0x83b0,  0x04c3,  0x85d0,  0x86e0,  0x07f3,
+	0x9900,  0x1813,  0x1b23,  0x9a30,  0x1d43,  0x9c50,  0x9f60,  0x1e73,
+	0x1183,  0x9090,  0x93a0,  0x12b3,  0x95c0,  0x14d3,  0x17e3,  0x96f0,
+	0xaa00,  0x2b13,  0x2823,  0xa930,  0x2e43,  0xaf50,  0xac60,  0x2d73,
+	0x2283,  0xa390,  0xa0a0,  0x21b3,  0xa6c0,  0x27d3,  0x24e3,  0xa5f0,
+	0x3b03,  0xba10,  0xb920,  0x3833,  0xbf40,  0x3e53,  0x3d63,  0xbc70,
+	0xb380,  0x3293,  0x31a3,  0xb0b0,  0x37c3,  0xb6d0,  0xb5e0,  0x34f3,
+	0xcc00,  0x4d13,  0x4e23,  0xcf30,  0x4843,  0xc950,  0xca60,  0x4b73,
+	0x4483,  0xc590,  0xc6a0,  0x47b3,  0xc0c0,  0x41d3,  0x42e3,  0xc3f0,
+	0x5d03,  0xdc10,  0xdf20,  0x5e33,  0xd940,  0x5853,  0x5b63,  0xda70,
+	0xd580,  0x5493,  0x57a3,  0xd6b0,  0x51c3,  0xd0d0,  0xd3e0,  0x52f3,
+	0x6e03,  0xef10,  0xec20,  0x6d33,  0xea40,  0x6b53,  0x6863,  0xe970,
+	0xe680,  0x6793,  0x64a3,  0xe5b0,  0x62c3,  0xe3d0,  0xe0e0,  0x61f3,
+	0xff00,  0x7e13,  0x7d23,  0xfc30,  0x7b43,  0xfa50,  0xf960,  0x7873,
+	0x7783,  0xf690,  0xf5a0,  0x74b3,  0xf3c0,  0x72d3,  0x71e3,  0xf0f0 },
+
+  { 0x0000,  0x1006,  0x200c,  0x300a,  0x4018,  0x501e,  0x6014,  0x7012,
+	0x8030,  0x9036,  0xa03c,  0xb03a,  0xc028,  0xd02e,  0xe024,  0xf022,
+	0x8065,  0x9063,  0xa069,  0xb06f,  0xc07d,  0xd07b,  0xe071,  0xf077,
+	0x0055,  0x1053,  0x2059,  0x305f,  0x404d,  0x504b,  0x6041,  0x7047,
+	0x80cf,  0x90c9,  0xa0c3,  0xb0c5,  0xc0d7,  0xd0d1,  0xe0db,  0xf0dd,
+	0x00ff,  0x10f9,  0x20f3,  0x30f5,  0x40e7,  0x50e1,  0x60eb,  0x70ed,
+	0x00aa,  0x10ac,  0x20a6,  0x30a0,  0x40b2,  0x50b4,  0x60be,  0x70b8,
+	0x809a,  0x909c,  0xa096,  0xb090,  0xc082,  0xd084,  0xe08e,  0xf088,
+	0x819b,  0x919d,  0xa197,  0xb191,  0xc183,  0xd185,  0xe18f,  0xf189,
+	0x01ab,  0x11ad,  0x21a7,  0x31a1,  0x41b3,  0x51b5,  0x61bf,  0x71b9,
+	0x01fe,  0x11f8,  0x21f2,  0x31f4,  0x41e6,  0x51e0,  0x61ea,  0x71ec,
+	0x81ce,  0x91c8,  0xa1c2,  0xb1c4,  0xc1d6,  0xd1d0,  0xe1da,  0xf1dc,
+	0x0154,  0x1152,  0x2158,  0x315e,  0x414c,  0x514a,  0x6140,  0x7146,
+	0x8164,  0x9162,  0xa168,  0xb16e,  0xc17c,  0xd17a,  0xe170,  0xf176,
+	0x8131,  0x9137,  0xa13d,  0xb13b,  0xc129,  0xd12f,  0xe125,  0xf123,
+	0x0101,  0x1107,  0x210d,  0x310b,  0x4119,  0x511f,  0x6115,  0x7113,
+	0x8333,  0x9335,  0xa33f,  0xb339,  0xc32b,  0xd32d,  0xe327,  0xf321,
+	0x0303,  0x1305,  0x230f,  0x3309,  0x431b,  0x531d,  0x6317,  0x7311,
+	0x0356,  0x1350,  0x235a,  0x335c,  0x434e,  0x5348,  0x6342,  0x7344,
+	0x8366,  0x9360,  0xa36a,  0xb36c,  0xc37e,  0xd378,  0xe372,  0xf374,
+	0x03fc,  0x13fa,  0x23f0,  0x33f6,  0x43e4,  0x53e2,  0x63e8,  0x73ee,
+	0x83cc,  0x93ca,  0xa3c0,  0xb3c6,  0xc3d4,  0xd3d2,  0xe3d8,  0xf3de,
+	0x8399,  0x939f,  0xa395,  0xb393,  0xc381,  0xd387,  0xe38d,  0xf38b,
+	0x03a9,  0x13af,  0x23a5,  0x33a3,  0x43b1,  0x53b7,  0x63bd,  0x73bb,
+	0x02a8,  0x12ae,  0x22a4,  0x32a2,  0x42b0,  0x52b6,  0x62bc,  0x72ba,
+	0x8298,  0x929e,  0xa294,  0xb292,  0xc280,  0xd286,  0xe28c,  0xf28a,
+	0x82cd,  0x92cb,  0xa2c1,  0xb2c7,  0xc2d5,  0xd2d3,  0xe2d9,  0xf2df,
+	0x02fd,  0x12fb,  0x22f1,  0x32f7,  0x42e5,  0x52e3,  0x62e9,  0x72ef,
+	0x8267,  0x9261,  0xa26b,  0xb26d,  0xc27f,  0xd279,  0xe273,  0xf275,
+	0x0257,  0x1251,  0x225b,  0x325d,  0x424f,  0x5249,  0x6243,  0x7245,
+	0x0202,  0x1204,  0x220e,  0x3208,  0x421a,  0x521c,  0x6216,  0x7210,
+	0x8232,  0x9234,  0xa23e,  0xb238,  0xc22a,  0xd22c,  0xe226,  0xf220 }
+};
+
+#if 0
+void FLAC__crc16_init_table(void)
+{
+	int i, j;
+	FLAC__uint16 polynomial, crc;
+	polynomial = 0x8005;
+
+	for(i = 0; i <= 0xFF; i++){
+		crc = i << 8;
+
+		for(j = 0; j < 8; j++)
+			crc = (crc << 1) ^ (crc & (1 << 15) ? polynomial : 0);
+
+		FLAC__crc16_table[0][i] = crc;
+	}
+
+	for(i = 0; i <= 0xFF; i++)
+		for(j = 1; j < 8; j++)
+			FLAC__crc16_table[j][i] = FLAC__crc16_table[0][FLAC__crc16_table[j - 1][i] >> 8] ^ (FLAC__crc16_table[j - 1][i] << 8);
+}
+#endif
+
+FLAC__uint8 FLAC__crc8(const FLAC__byte *data, uint32_t len)
+{
+	FLAC__uint8 crc = 0;
+
+	while(len--)
+		crc = FLAC__crc8_table[crc ^ *data++];
+
+	return crc;
+}
+
+FLAC__uint16 FLAC__crc16(const FLAC__byte *data, uint32_t len)
+{
+	FLAC__uint16 crc = 0;
+
+	while(len >= 8){
+		crc ^= data[0] << 8 | data[1];
+
+		crc = FLAC__crc16_table[7][crc >> 8] ^ FLAC__crc16_table[6][crc & 0xFF] ^
+		      FLAC__crc16_table[5][data[2] ] ^ FLAC__crc16_table[4][data[3]   ] ^
+		      FLAC__crc16_table[3][data[4] ] ^ FLAC__crc16_table[2][data[5]   ] ^
+		      FLAC__crc16_table[1][data[6] ] ^ FLAC__crc16_table[0][data[7]   ];
+
+		data += 8;
+		len -= 8;
+	}
+
+	while(len--)
+		crc = (crc<<8) ^ FLAC__crc16_table[0][(crc>>8) ^ *data++];
+
+	return crc;
+}
+
+FLAC__uint16 FLAC__crc16_update_words32(const FLAC__uint32 *words, uint32_t len, FLAC__uint16 crc)
+{
+	while (len >= 2) {
+		crc ^= words[0] >> 16;
+
+		crc = FLAC__crc16_table[7][crc >> 8               ] ^ FLAC__crc16_table[6][crc & 0xFF             ] ^
+		      FLAC__crc16_table[5][(words[0] >>  8) & 0xFF] ^ FLAC__crc16_table[4][ words[0]        & 0xFF] ^
+		      FLAC__crc16_table[3][ words[1] >> 24        ] ^ FLAC__crc16_table[2][(words[1] >> 16) & 0xFF] ^
+		      FLAC__crc16_table[1][(words[1] >>  8) & 0xFF] ^ FLAC__crc16_table[0][ words[1]        & 0xFF];
+
+		words += 2;
+		len -= 2;
+	}
+
+	if (len) {
+		crc ^= words[0] >> 16;
+
+		crc = FLAC__crc16_table[3][crc >> 8               ] ^ FLAC__crc16_table[2][crc & 0xFF             ] ^
+		      FLAC__crc16_table[1][(words[0] >>  8) & 0xFF] ^ FLAC__crc16_table[0][words[0]         & 0xFF];
+	}
+
+	return crc;
+}
+
+FLAC__uint16 FLAC__crc16_update_words64(const FLAC__uint64 *words, uint32_t len, FLAC__uint16 crc)
+{
+	while (len--) {
+		crc ^= words[0] >> 48;
+
+		crc = FLAC__crc16_table[7][crc >> 8               ] ^ FLAC__crc16_table[6][crc & 0xFF             ] ^
+		      FLAC__crc16_table[5][(words[0] >> 40) & 0xFF] ^ FLAC__crc16_table[4][(words[0] >> 32) & 0xFF] ^
+		      FLAC__crc16_table[3][(words[0] >> 24) & 0xFF] ^ FLAC__crc16_table[2][(words[0] >> 16) & 0xFF] ^
+		      FLAC__crc16_table[1][(words[0] >>  8) & 0xFF] ^ FLAC__crc16_table[0][ words[0]        & 0xFF];
+
+		words++;
+	}
+
+	return crc;
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/fixed.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/fixed.c
new file mode 100644
index 00000000..7d826f10
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/fixed.c
@@ -0,0 +1,662 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <math.h>
+#include <string.h>
+#include "share/compat.h"
+#include "private/bitmath.h"
+#include "private/fixed.h"
+#include "private/macros.h"
+#include "FLAC/assert.h"
+
+#ifdef local_abs
+#undef local_abs
+#endif
+#define local_abs(x) ((uint32_t)((x)<0? -(x) : (x)))
+
+#ifdef local_abs64
+#undef local_abs64
+#endif
+#define local_abs64(x) ((uint64_t)((x)<0? -(x) : (x)))
+
+#ifdef FLAC__INTEGER_ONLY_LIBRARY
+/* rbps stands for residual bits per sample
+ *
+ *             (ln(2) * err)
+ * rbps = log  (-----------)
+ *           2 (     n     )
+ */
+static FLAC__fixedpoint local__compute_rbps_integerized(FLAC__uint32 err, FLAC__uint32 n)
+{
+	FLAC__uint32 rbps;
+	uint32_t bits; /* the number of bits required to represent a number */
+	int fracbits; /* the number of bits of rbps that comprise the fractional part */
+
+	FLAC__ASSERT(sizeof(rbps) == sizeof(FLAC__fixedpoint));
+	FLAC__ASSERT(err > 0);
+	FLAC__ASSERT(n > 0);
+
+	FLAC__ASSERT(n <= FLAC__MAX_BLOCK_SIZE);
+	if(err <= n)
+		return 0;
+	/*
+	 * The above two things tell us 1) n fits in 16 bits; 2) err/n > 1.
+	 * These allow us later to know we won't lose too much precision in the
+	 * fixed-point division (err<<fracbits)/n.
+	 */
+
+	fracbits = (8*sizeof(err)) - (FLAC__bitmath_ilog2(err)+1);
+
+	err <<= fracbits;
+	err /= n;
+	/* err now holds err/n with fracbits fractional bits */
+
+	/*
+	 * Whittle err down to 16 bits max.  16 significant bits is enough for
+	 * our purposes.
+	 */
+	FLAC__ASSERT(err > 0);
+	bits = FLAC__bitmath_ilog2(err)+1;
+	if(bits > 16) {
+		err >>= (bits-16);
+		fracbits -= (bits-16);
+	}
+	rbps = (FLAC__uint32)err;
+
+	/* Multiply by fixed-point version of ln(2), with 16 fractional bits */
+	rbps *= FLAC__FP_LN2;
+	fracbits += 16;
+	FLAC__ASSERT(fracbits >= 0);
+
+	/* FLAC__fixedpoint_log2 requires fracbits%4 to be 0 */
+	{
+		const int f = fracbits & 3;
+		if(f) {
+			rbps >>= f;
+			fracbits -= f;
+		}
+	}
+
+	rbps = FLAC__fixedpoint_log2(rbps, fracbits, (uint32_t)(-1));
+
+	if(rbps == 0)
+		return 0;
+
+	/*
+	 * The return value must have 16 fractional bits.  Since the whole part
+	 * of the base-2 log of a 32 bit number must fit in 5 bits, and fracbits
+	 * must be >= -3, these assertion allows us to be able to shift rbps
+	 * left if necessary to get 16 fracbits without losing any bits of the
+	 * whole part of rbps.
+	 *
+	 * There is a slight chance due to accumulated error that the whole part
+	 * will require 6 bits, so we use 6 in the assertion.  Really though as
+	 * long as it fits in 13 bits (32 - (16 - (-3))) we are fine.
+	 */
+	FLAC__ASSERT((int)FLAC__bitmath_ilog2(rbps)+1 <= fracbits + 6);
+	FLAC__ASSERT(fracbits >= -3);
+
+	/* now shift the decimal point into place */
+	if(fracbits < 16)
+		return rbps << (16-fracbits);
+	else if(fracbits > 16)
+		return rbps >> (fracbits-16);
+	else
+		return rbps;
+}
+
+static FLAC__fixedpoint local__compute_rbps_wide_integerized(FLAC__uint64 err, FLAC__uint32 n)
+{
+	FLAC__uint32 rbps;
+	uint32_t bits; /* the number of bits required to represent a number */
+	int fracbits; /* the number of bits of rbps that comprise the fractional part */
+
+	FLAC__ASSERT(sizeof(rbps) == sizeof(FLAC__fixedpoint));
+	FLAC__ASSERT(err > 0);
+	FLAC__ASSERT(n > 0);
+
+	FLAC__ASSERT(n <= FLAC__MAX_BLOCK_SIZE);
+	if(err <= n)
+		return 0;
+	/*
+	 * The above two things tell us 1) n fits in 16 bits; 2) err/n > 1.
+	 * These allow us later to know we won't lose too much precision in the
+	 * fixed-point division (err<<fracbits)/n.
+	 */
+
+	fracbits = (8*sizeof(err)) - (FLAC__bitmath_ilog2_wide(err)+1);
+
+	err <<= fracbits;
+	err /= n;
+	/* err now holds err/n with fracbits fractional bits */
+
+	/*
+	 * Whittle err down to 16 bits max.  16 significant bits is enough for
+	 * our purposes.
+	 */
+	FLAC__ASSERT(err > 0);
+	bits = FLAC__bitmath_ilog2_wide(err)+1;
+	if(bits > 16) {
+		err >>= (bits-16);
+		fracbits -= (bits-16);
+	}
+	rbps = (FLAC__uint32)err;
+
+	/* Multiply by fixed-point version of ln(2), with 16 fractional bits */
+	rbps *= FLAC__FP_LN2;
+	fracbits += 16;
+	FLAC__ASSERT(fracbits >= 0);
+
+	/* FLAC__fixedpoint_log2 requires fracbits%4 to be 0 */
+	{
+		const int f = fracbits & 3;
+		if(f) {
+			rbps >>= f;
+			fracbits -= f;
+		}
+	}
+
+	rbps = FLAC__fixedpoint_log2(rbps, fracbits, (uint32_t)(-1));
+
+	if(rbps == 0)
+		return 0;
+
+	/*
+	 * The return value must have 16 fractional bits.  Since the whole part
+	 * of the base-2 log of a 32 bit number must fit in 5 bits, and fracbits
+	 * must be >= -3, these assertion allows us to be able to shift rbps
+	 * left if necessary to get 16 fracbits without losing any bits of the
+	 * whole part of rbps.
+	 *
+	 * There is a slight chance due to accumulated error that the whole part
+	 * will require 6 bits, so we use 6 in the assertion.  Really though as
+	 * long as it fits in 13 bits (32 - (16 - (-3))) we are fine.
+	 */
+	FLAC__ASSERT((int)FLAC__bitmath_ilog2(rbps)+1 <= fracbits + 6);
+	FLAC__ASSERT(fracbits >= -3);
+
+	/* now shift the decimal point into place */
+	if(fracbits < 16)
+		return rbps << (16-fracbits);
+	else if(fracbits > 16)
+		return rbps >> (fracbits-16);
+	else
+		return rbps;
+}
+#endif
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#else
+uint32_t FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#endif
+{
+	FLAC__uint32 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
+	uint32_t order;
+#if 0
+	/* This code has been around a long time, and was written when compilers weren't able
+	 * to vectorize code. These days, compilers are better in optimizing the next block
+	 * which is also much more readable
+	 */
+	FLAC__int32 last_error_0 = data[-1];
+	FLAC__int32 last_error_1 = data[-1] - data[-2];
+	FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]);
+	FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]);
+	FLAC__int32 error, save;
+	/* total_error_* are 64-bits to avoid overflow when encoding
+	 * erratic signals when the bits-per-sample and blocksize are
+	 * large.
+	 */
+	for(uint32_t i = 0; i < data_len; i++) {
+		error  = data[i]     ; total_error_0 += local_abs(error);                      save = error;
+		error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
+		error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
+		error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
+		error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
+	}
+#else
+	for(int i = 0; i < (int)data_len; i++) {
+		total_error_0 += local_abs(data[i]);
+		total_error_1 += local_abs(data[i] - data[i-1]);
+		total_error_2 += local_abs(data[i] - 2 * data[i-1] + data[i-2]);
+		total_error_3 += local_abs(data[i] - 3 * data[i-1] + 3 * data[i-2] - data[i-3]);
+		total_error_4 += local_abs(data[i] - 4 * data[i-1] + 6 * data[i-2] - 4 * data[i-3] + data[i-4]);
+	}
+#endif
+
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+#else
+	residual_bits_per_sample[0] = (total_error_0 > 0) ? local__compute_rbps_integerized(total_error_0, data_len) : 0;
+	residual_bits_per_sample[1] = (total_error_1 > 0) ? local__compute_rbps_integerized(total_error_1, data_len) : 0;
+	residual_bits_per_sample[2] = (total_error_2 > 0) ? local__compute_rbps_integerized(total_error_2, data_len) : 0;
+	residual_bits_per_sample[3] = (total_error_3 > 0) ? local__compute_rbps_integerized(total_error_3, data_len) : 0;
+	residual_bits_per_sample[4] = (total_error_4 > 0) ? local__compute_rbps_integerized(total_error_4, data_len) : 0;
+#endif
+
+	return order;
+}
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#else
+uint32_t FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#endif
+{
+	FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
+	uint32_t order;
+
+	for(int i = 0; i < (int)data_len; i++) {
+		total_error_0 += local_abs(data[i]);
+		total_error_1 += local_abs(data[i] - data[i-1]);
+		total_error_2 += local_abs(data[i] - 2 * data[i-1] + data[i-2]);
+		total_error_3 += local_abs(data[i] - 3 * data[i-1] + 3 * data[i-2] - data[i-3]);
+		total_error_4 += local_abs(data[i] - 4 * data[i-1] + 6 * data[i-2] - 4 * data[i-3] + data[i-4]);
+	}
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+#else
+	residual_bits_per_sample[0] = (total_error_0 > 0) ? local__compute_rbps_wide_integerized(total_error_0, data_len) : 0;
+	residual_bits_per_sample[1] = (total_error_1 > 0) ? local__compute_rbps_wide_integerized(total_error_1, data_len) : 0;
+	residual_bits_per_sample[2] = (total_error_2 > 0) ? local__compute_rbps_wide_integerized(total_error_2, data_len) : 0;
+	residual_bits_per_sample[3] = (total_error_3 > 0) ? local__compute_rbps_wide_integerized(total_error_3, data_len) : 0;
+	residual_bits_per_sample[4] = (total_error_4 > 0) ? local__compute_rbps_wide_integerized(total_error_4, data_len) : 0;
+#endif
+
+	return order;
+}
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#define CHECK_ORDER_IS_VALID(macro_order)		\
+if(order_##macro_order##_is_valid && total_error_##macro_order < smallest_error) { \
+	order = macro_order;				\
+	smallest_error = total_error_##macro_order ;	\
+	residual_bits_per_sample[ macro_order ] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0); \
+}							\
+else							\
+	residual_bits_per_sample[ macro_order ] = 34.0f;
+#else
+#define CHECK_ORDER_IS_VALID(macro_order)		\
+if(order_##macro_order##_is_valid && total_error_##macro_order < smallest_error) { \
+	order = macro_order;				\
+	smallest_error = total_error_##macro_order ;	\
+	residual_bits_per_sample[ macro_order ] = (total_error_##macro_order > 0) ? local__compute_rbps_wide_integerized(total_error_##macro_order, data_len) : 0; \
+}							\
+else							\
+	residual_bits_per_sample[ macro_order ] = 34 * FLAC__FP_ONE;
+#endif
+
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#else
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#endif
+{
+	FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0, smallest_error = UINT64_MAX;
+	FLAC__uint64 error_0, error_1, error_2, error_3, error_4;
+	FLAC__bool order_0_is_valid = true, order_1_is_valid = true, order_2_is_valid = true, order_3_is_valid = true, order_4_is_valid = true;
+	uint32_t order = 0;
+
+	for(int i = 0; i < (int)data_len; i++) {
+		error_0 = local_abs64((FLAC__int64)data[i]);
+		error_1 = (i > 0) ? local_abs64((FLAC__int64)data[i] - data[i-1]) : 0 ;
+		error_2 = (i > 1) ? local_abs64((FLAC__int64)data[i] - 2 * (FLAC__int64)data[i-1] + data[i-2]) : 0;
+		error_3 = (i > 2) ? local_abs64((FLAC__int64)data[i] - 3 * (FLAC__int64)data[i-1] + 3 * (FLAC__int64)data[i-2] - data[i-3]) : 0;
+		error_4 = (i > 3) ? local_abs64((FLAC__int64)data[i] - 4 * (FLAC__int64)data[i-1] + 6 * (FLAC__int64)data[i-2] - 4 * (FLAC__int64)data[i-3] + data[i-4]) : 0;
+
+		total_error_0 += error_0;
+		total_error_1 += error_1;
+		total_error_2 += error_2;
+		total_error_3 += error_3;
+		total_error_4 += error_4;
+
+		/* residual must not be INT32_MIN because abs(INT32_MIN) is undefined */
+		if(error_0 > INT32_MAX)
+			order_0_is_valid = false;
+		if(error_1 > INT32_MAX)
+			order_1_is_valid = false;
+		if(error_2 > INT32_MAX)
+			order_2_is_valid = false;
+		if(error_3 > INT32_MAX)
+			order_3_is_valid = false;
+		if(error_4 > INT32_MAX)
+			order_4_is_valid = false;
+	}
+
+	CHECK_ORDER_IS_VALID(0);
+	CHECK_ORDER_IS_VALID(1);
+	CHECK_ORDER_IS_VALID(2);
+	CHECK_ORDER_IS_VALID(3);
+	CHECK_ORDER_IS_VALID(4);
+
+	return order;
+}
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_33bit(const FLAC__int64 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#else
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_33bit(const FLAC__int64 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#endif
+{
+	FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0, smallest_error = UINT64_MAX;
+	FLAC__uint64 error_0, error_1, error_2, error_3, error_4;
+	FLAC__bool order_0_is_valid = true, order_1_is_valid = true, order_2_is_valid = true, order_3_is_valid = true, order_4_is_valid = true;
+	uint32_t order = 0;
+
+	for(int i = 0; i < (int)data_len; i++) {
+		error_0 = local_abs64(data[i]);
+		error_1 = (i > 0) ? local_abs64(data[i] - data[i-1]) : 0 ;
+		error_2 = (i > 1) ? local_abs64(data[i] - 2 * data[i-1] + data[i-2]) : 0;
+		error_3 = (i > 2) ? local_abs64(data[i] - 3 * data[i-1] + 3 * data[i-2] - data[i-3]) : 0;
+		error_4 = (i > 3) ? local_abs64(data[i] - 4 * data[i-1] + 6 * data[i-2] - 4 * data[i-3] + data[i-4]) : 0;
+
+		total_error_0 += error_0;
+		total_error_1 += error_1;
+		total_error_2 += error_2;
+		total_error_3 += error_3;
+		total_error_4 += error_4;
+
+		/* residual must not be INT32_MIN because abs(INT32_MIN) is undefined */
+		if(error_0 > INT32_MAX)
+			order_0_is_valid = false;
+		if(error_1 > INT32_MAX)
+			order_1_is_valid = false;
+		if(error_2 > INT32_MAX)
+			order_2_is_valid = false;
+		if(error_3 > INT32_MAX)
+			order_3_is_valid = false;
+		if(error_4 > INT32_MAX)
+			order_4_is_valid = false;
+	}
+
+	CHECK_ORDER_IS_VALID(0);
+	CHECK_ORDER_IS_VALID(1);
+	CHECK_ORDER_IS_VALID(2);
+	CHECK_ORDER_IS_VALID(3);
+	CHECK_ORDER_IS_VALID(4);
+
+	return order;
+}
+
+void FLAC__fixed_compute_residual(const FLAC__int32 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[])
+{
+	const int idata_len = (int)data_len;
+	int i;
+
+	switch(order) {
+		case 0:
+			FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
+			memcpy(residual, data, sizeof(residual[0])*data_len);
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 2*data[i-1] + data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 3*data[i-1] + 3*data[i-2] - data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 4*data[i-1] + 6*data[i-2] - 4*data[i-3] + data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
+
+void FLAC__fixed_compute_residual_wide(const FLAC__int32 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[])
+{
+	const int idata_len = (int)data_len;
+	int i;
+
+	switch(order) {
+		case 0:
+			FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
+			memcpy(residual, data, sizeof(residual[0])*data_len);
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = (FLAC__int64)data[i] - data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = (FLAC__int64)data[i] - 2*(FLAC__int64)data[i-1] + data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = (FLAC__int64)data[i] - 3*(FLAC__int64)data[i-1] + 3*(FLAC__int64)data[i-2] - data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = (FLAC__int64)data[i] - 4*(FLAC__int64)data[i-1] + 6*(FLAC__int64)data[i-2] - 4*(FLAC__int64)data[i-3] + data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
+
+void FLAC__fixed_compute_residual_wide_33bit(const FLAC__int64 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[])
+{
+	const int idata_len = (int)data_len;
+	int i;
+
+	switch(order) {
+		case 0:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i];
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 2*data[i-1] + data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 3*data[i-1] + 3*data[i-2] - data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 4*data[i-1] + 6*data[i-2] - 4*data[i-3] + data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
+
+#ifdef FUZZING_BUILD_MODE_NO_SANITIZE_SIGNED_INTEGER_OVERFLOW
+/* The attribute below is to silence the undefined sanitizer of oss-fuzz.
+ * Because fuzzing feeds bogus predictors and residual samples to the
+ * decoder, having overflows in this section is unavoidable. Also,
+ * because the calculated values are audio path only, there is no
+ * potential for security problems */
+__attribute__((no_sanitize("signed-integer-overflow")))
+#endif
+void FLAC__fixed_restore_signal(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int32 data[])
+{
+	int i, idata_len = (int)data_len;
+
+	switch(order) {
+		case 0:
+			FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
+			memcpy(data, residual, sizeof(residual[0])*data_len);
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				data[i] = residual[i] + data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				data[i] = residual[i] + 2*data[i-1] - data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				data[i] = residual[i] + 3*data[i-1] - 3*data[i-2] + data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				data[i] = residual[i] + 4*data[i-1] - 6*data[i-2] + 4*data[i-3] - data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
+
+void FLAC__fixed_restore_signal_wide(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int32 data[])
+{
+	int i, idata_len = (int)data_len;
+
+	switch(order) {
+		case 0:
+			FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
+			memcpy(data, residual, sizeof(residual[0])*data_len);
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + (FLAC__int64)data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 2*(FLAC__int64)data[i-1] - (FLAC__int64)data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 3*(FLAC__int64)data[i-1] - 3*(FLAC__int64)data[i-2] + (FLAC__int64)data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 4*(FLAC__int64)data[i-1] - 6*(FLAC__int64)data[i-2] + 4*(FLAC__int64)data[i-3] - (FLAC__int64)data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
+
+#ifdef FUZZING_BUILD_MODE_NO_SANITIZE_SIGNED_INTEGER_OVERFLOW
+/* The attribute below is to silence the undefined sanitizer of oss-fuzz.
+ * Because fuzzing feeds bogus predictors and residual samples to the
+ * decoder, having overflows in this section is unavoidable. Also,
+ * because the calculated values are audio path only, there is no
+ * potential for security problems */
+__attribute__((no_sanitize("signed-integer-overflow")))
+#endif
+void FLAC__fixed_restore_signal_wide_33bit(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int64 data[])
+{
+	int i, idata_len = (int)data_len;
+
+	switch(order) {
+		case 0:
+			for(i = 0; i < idata_len; i++)
+				data[i] = residual[i];
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 2*data[i-1] - data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 3*data[i-1] - 3*data[i-2] + data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 4*data[i-1] - 6*data[i-2] + 4*data[i-3] - data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/fixed_intrin_sse2.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/fixed_intrin_sse2.c
new file mode 100644
index 00000000..3b508958
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/fixed_intrin_sse2.c
@@ -0,0 +1,292 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
+#include "private/fixed.h"
+#ifdef FLAC__SSE2_SUPPORTED
+
+#include <emmintrin.h> /* SSE2 */
+#include <math.h>
+#include "private/macros.h"
+#include "share/compat.h"
+#include "FLAC/assert.h"
+
+#ifdef FLAC__CPU_IA32
+#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src)
+#else
+#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src)
+#endif
+
+#ifdef local_abs
+#undef local_abs
+#endif
+#define local_abs(x) ((uint32_t)((x)<0? -(x) : (x)))
+
+FLAC__SSE_TARGET("sse2")
+uint32_t FLAC__fixed_compute_best_predictor_intrin_sse2(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
+{
+	FLAC__uint32 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
+	FLAC__int32 i, data_len_int;
+	uint32_t order;
+	__m128i total_err0, total_err1, total_err2, total_err3, total_err4;
+	__m128i prev_err0,  prev_err1,  prev_err2,  prev_err3;
+	__m128i tempA, tempB, bitmask;
+	FLAC__int32 data_scalar[4];
+	FLAC__int32 prev_err0_scalar[4];
+	FLAC__int32 prev_err1_scalar[4];
+	FLAC__int32 prev_err2_scalar[4];
+	FLAC__int32 prev_err3_scalar[4];
+	total_err0 = _mm_setzero_si128();
+	total_err1 = _mm_setzero_si128();
+	total_err2 = _mm_setzero_si128();
+	total_err3 = _mm_setzero_si128();
+	total_err4 = _mm_setzero_si128();
+	data_len_int = data_len;
+
+	for(i = 0; i < 4; i++){
+		prev_err0_scalar[i] = data[-1+i*(data_len_int/4)];
+		prev_err1_scalar[i] = data[-1+i*(data_len_int/4)] - data[-2+i*(data_len_int/4)];
+		prev_err2_scalar[i] = prev_err1_scalar[i] - (data[-2+i*(data_len_int/4)] - data[-3+i*(data_len_int/4)]);
+		prev_err3_scalar[i] = prev_err2_scalar[i] - (data[-2+i*(data_len_int/4)] - 2*data[-3+i*(data_len_int/4)] + data[-4+i*(data_len_int/4)]);
+	}
+	prev_err0 = _mm_loadu_si128((const __m128i*)prev_err0_scalar);
+	prev_err1 = _mm_loadu_si128((const __m128i*)prev_err1_scalar);
+	prev_err2 = _mm_loadu_si128((const __m128i*)prev_err2_scalar);
+	prev_err3 = _mm_loadu_si128((const __m128i*)prev_err3_scalar);
+	for(i = 0; i < data_len_int / 4; i++){
+		data_scalar[0] = data[i];
+		data_scalar[1] = data[i+data_len/4];
+		data_scalar[2] = data[i+2*(data_len/4)];
+		data_scalar[3] = data[i+3*(data_len/4)];
+		tempA = _mm_loadu_si128((const __m128i*)data_scalar);
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm_srai_epi32(tempA, 31);
+		tempB   = _mm_xor_si128(tempA, bitmask);
+		tempB   = _mm_sub_epi32(tempB, bitmask);
+		total_err0 = _mm_add_epi32(total_err0,tempB);
+		tempB = _mm_sub_epi32(tempA,prev_err0);
+		prev_err0 = tempA;
+		/* Next three intrinsics calculate tempA as abs of tempB */
+		bitmask = _mm_srai_epi32(tempB, 31);
+		tempA   = _mm_xor_si128(tempB, bitmask);
+		tempA   = _mm_sub_epi32(tempA, bitmask);
+		total_err1 = _mm_add_epi32(total_err1,tempA);
+		tempA = _mm_sub_epi32(tempB,prev_err1);
+		prev_err1 = tempB;
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm_srai_epi32(tempA, 31);
+		tempB   = _mm_xor_si128(tempA, bitmask);
+		tempB   = _mm_sub_epi32(tempB, bitmask);
+		total_err2 = _mm_add_epi32(total_err2,tempB);
+		tempB = _mm_sub_epi32(tempA,prev_err2);
+		prev_err2 = tempA;
+		/* Next three intrinsics calculate tempA as abs of tempB */
+		bitmask = _mm_srai_epi32(tempB, 31);
+		tempA   = _mm_xor_si128(tempB, bitmask);
+		tempA   = _mm_sub_epi32(tempA, bitmask);
+		total_err3 = _mm_add_epi32(total_err3,tempA);
+		tempA = _mm_sub_epi32(tempB,prev_err3);
+		prev_err3 = tempB;
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm_srai_epi32(tempA, 31);
+		tempB   = _mm_xor_si128(tempA, bitmask);
+		tempB   = _mm_sub_epi32(tempB, bitmask);
+		total_err4 = _mm_add_epi32(total_err4,tempB);
+	}
+	_mm_storeu_si128((__m128i*)data_scalar,total_err0);
+	total_error_0 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err1);
+	total_error_1 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err2);
+	total_error_2 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err3);
+	total_error_3 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err4);
+	total_error_4 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+
+	/* Now the remainder of samples needs to be processed */
+	i *= 4;
+	if(data_len % 4 > 0){
+		FLAC__int32 last_error_0 = data[i-1];
+		FLAC__int32 last_error_1 = data[i-1] - data[i-2];
+		FLAC__int32 last_error_2 = last_error_1 - (data[i-2] - data[i-3]);
+		FLAC__int32 last_error_3 = last_error_2 - (data[i-2] - 2*data[i-3] + data[i-4]);
+		FLAC__int32 error, save;
+		for(; i < data_len_int; i++) {
+			error  = data[i]     ; total_error_0 += local_abs(error);                      save = error;
+			error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
+			error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
+			error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
+			error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
+		}
+	}
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+
+	return order;
+}
+
+FLAC__SSE_TARGET("sse2")
+uint32_t FLAC__fixed_compute_best_predictor_wide_intrin_sse2(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
+{
+	FLAC__uint64 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
+	uint32_t i, order;
+
+	__m128i total_err0, total_err1, total_err3;
+
+	{
+		FLAC__int32 itmp;
+		__m128i last_error, zero = _mm_setzero_si128();
+
+		last_error = _mm_cvtsi32_si128(data[-1]);							// 0   0   0   le0
+		itmp = data[-2];
+		last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
+		last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp));	// 0   0   le0 le1
+		itmp -= data[-3];
+		last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
+		last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp));	// 0   le0 le1 le2
+		itmp -= data[-3] - data[-4];
+		last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
+		last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp));	// le0 le1 le2 le3
+
+		total_err0 = total_err1 = total_err3 = _mm_setzero_si128();
+		for(i = 0; i < data_len; i++) {
+			__m128i err0, err1, tmp;
+			err0 = _mm_cvtsi32_si128(data[i]);								// 0   0   0   e0
+			err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0));			// e0  e0  e0  e0
+#if 1 /* OPT_SSE */
+			err1 = _mm_sub_epi32(err1, last_error);
+			last_error = _mm_srli_si128(last_error, 4);						// 0   le0 le1 le2
+			err1 = _mm_sub_epi32(err1, last_error);
+			last_error = _mm_srli_si128(last_error, 4);						// 0   0   le0 le1
+			err1 = _mm_sub_epi32(err1, last_error);
+			last_error = _mm_srli_si128(last_error, 4);						// 0   0   0   le0
+			err1 = _mm_sub_epi32(err1, last_error);							// e1  e2  e3  e4
+#else
+			last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8));	// le0  le1  le2+le0  le3+le1
+			last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4));	// le0  le1+le0  le2+le0+le1  le3+le1+le2+le0
+			err1 = _mm_sub_epi32(err1, last_error);							// e1  e2  e3  e4
+#endif
+			tmp = _mm_slli_si128(err0, 12);									// e0   0   0   0
+			last_error = _mm_srli_si128(err1, 4);							//  0  e1  e2  e3
+			last_error = _mm_or_si128(last_error, tmp);						// e0  e1  e2  e3
+
+			tmp = _mm_srai_epi32(err0, 31);
+			err0 = _mm_xor_si128(err0, tmp);
+			err0 = _mm_sub_epi32(err0, tmp);
+			tmp = _mm_srai_epi32(err1, 31);
+			err1 = _mm_xor_si128(err1, tmp);
+			err1 = _mm_sub_epi32(err1, tmp);
+
+			total_err0 = _mm_add_epi64(total_err0, err0);					//        0       te0
+			err0 = _mm_unpacklo_epi32(err1, zero);							//   0  |e3|   0  |e4|
+			err1 = _mm_unpackhi_epi32(err1, zero);							//   0  |e1|   0  |e2|
+			total_err3 = _mm_add_epi64(total_err3, err0);					//       te3      te4
+			total_err1 = _mm_add_epi64(total_err1, err1);					//       te1      te2
+		}
+	}
+
+	m128i_to_i64(total_error_0, total_err0);
+	m128i_to_i64(total_error_4, total_err3);
+	m128i_to_i64(total_error_2, total_err1);
+	total_err3 = _mm_srli_si128(total_err3,	8);							//         0      te3
+	total_err1 = _mm_srli_si128(total_err1, 8);							//         0      te1
+	m128i_to_i64(total_error_3, total_err3);
+	m128i_to_i64(total_error_1, total_err1);
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+
+	return order;
+}
+
+#endif /* FLAC__SSE2_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/fixed_intrin_ssse3.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/fixed_intrin_ssse3.c
new file mode 100644
index 00000000..bbad2249
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/fixed_intrin_ssse3.c
@@ -0,0 +1,271 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/fixed.h"
+#ifdef FLAC__SSSE3_SUPPORTED
+
+#include <tmmintrin.h> /* SSSE3 */
+#include <math.h>
+#include "private/macros.h"
+#include "share/compat.h"
+#include "FLAC/assert.h"
+
+#ifdef FLAC__CPU_IA32
+#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src)
+#else
+#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src)
+#endif
+
+#ifdef local_abs
+#undef local_abs
+#endif
+#define local_abs(x) ((uint32_t)((x)<0? -(x) : (x)))
+
+FLAC__SSE_TARGET("ssse3")
+uint32_t FLAC__fixed_compute_best_predictor_intrin_ssse3(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
+{
+	FLAC__uint32 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
+	FLAC__int32 i, data_len_int;
+	uint32_t order;
+	__m128i total_err0, total_err1, total_err2, total_err3, total_err4;
+	__m128i prev_err0,  prev_err1,  prev_err2,  prev_err3;
+	__m128i tempA, tempB;
+	FLAC__int32 data_scalar[4];
+	FLAC__int32 prev_err0_scalar[4];
+	FLAC__int32 prev_err1_scalar[4];
+	FLAC__int32 prev_err2_scalar[4];
+	FLAC__int32 prev_err3_scalar[4];
+	total_err0 = _mm_setzero_si128();
+	total_err1 = _mm_setzero_si128();
+	total_err2 = _mm_setzero_si128();
+	total_err3 = _mm_setzero_si128();
+	total_err4 = _mm_setzero_si128();
+	data_len_int = data_len;
+
+	for(i = 0; i < 4; i++){
+		prev_err0_scalar[i] = data[-1+i*(data_len_int/4)];
+		prev_err1_scalar[i] = data[-1+i*(data_len_int/4)] - data[-2+i*(data_len_int/4)];
+		prev_err2_scalar[i] = prev_err1_scalar[i] - (data[-2+i*(data_len_int/4)] - data[-3+i*(data_len_int/4)]);
+		prev_err3_scalar[i] = prev_err2_scalar[i] - (data[-2+i*(data_len_int/4)] - 2*data[-3+i*(data_len_int/4)] + data[-4+i*(data_len_int/4)]);
+	}
+	prev_err0 = _mm_loadu_si128((const __m128i*)prev_err0_scalar);
+	prev_err1 = _mm_loadu_si128((const __m128i*)prev_err1_scalar);
+	prev_err2 = _mm_loadu_si128((const __m128i*)prev_err2_scalar);
+	prev_err3 = _mm_loadu_si128((const __m128i*)prev_err3_scalar);
+	for(i = 0; i < data_len_int / 4; i++){
+		data_scalar[0] = data[i];
+		data_scalar[1] = data[i+data_len/4];
+		data_scalar[2] = data[i+2*(data_len/4)];
+		data_scalar[3] = data[i+3*(data_len/4)];
+		tempA = _mm_loadu_si128((const __m128i*)data_scalar);
+		tempB = _mm_abs_epi32(tempA);
+		total_err0 = _mm_add_epi32(total_err0,tempB);
+		tempB = _mm_sub_epi32(tempA,prev_err0);
+		prev_err0 = tempA;
+		tempA = _mm_abs_epi32(tempB);
+		total_err1 = _mm_add_epi32(total_err1,tempA);
+		tempA = _mm_sub_epi32(tempB,prev_err1);
+		prev_err1 = tempB;
+		tempB = _mm_abs_epi32(tempA);
+		total_err2 = _mm_add_epi32(total_err2,tempB);
+		tempB = _mm_sub_epi32(tempA,prev_err2);
+		prev_err2 = tempA;
+		tempA = _mm_abs_epi32(tempB);
+		total_err3 = _mm_add_epi32(total_err3,tempA);
+		tempA = _mm_sub_epi32(tempB,prev_err3);
+		prev_err3 = tempB;
+		tempB = _mm_abs_epi32(tempA);
+		total_err4 = _mm_add_epi32(total_err4,tempB);
+	}
+	_mm_storeu_si128((__m128i*)data_scalar,total_err0);
+	total_error_0 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err1);
+	total_error_1 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err2);
+	total_error_2 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err3);
+	total_error_3 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err4);
+	total_error_4 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+
+	/* Now the remainder of samples needs to be processed */
+	i *= 4;
+	if(data_len % 4 > 0){
+		FLAC__int32 last_error_0 = data[i-1];
+		FLAC__int32 last_error_1 = data[i-1] - data[i-2];
+		FLAC__int32 last_error_2 = last_error_1 - (data[i-2] - data[i-3]);
+		FLAC__int32 last_error_3 = last_error_2 - (data[i-2] - 2*data[i-3] + data[i-4]);
+		FLAC__int32 error, save;
+		for(; i < data_len_int; i++) {
+			error  = data[i]     ; total_error_0 += local_abs(error);                      save = error;
+			error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
+			error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
+			error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
+			error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
+		}
+	}
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+
+	return order;
+}
+
+FLAC__SSE_TARGET("ssse3")
+uint32_t FLAC__fixed_compute_best_predictor_wide_intrin_ssse3(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
+{
+	FLAC__uint64 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
+	uint32_t i, order;
+
+	__m128i total_err0, total_err1, total_err3;
+
+	{
+		FLAC__int32 itmp;
+		__m128i last_error, zero = _mm_setzero_si128();
+
+		last_error = _mm_cvtsi32_si128(data[-1]);							// 0   0   0   le0
+		itmp = data[-2];
+		last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
+		last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp));	// 0   0   le0 le1
+		itmp -= data[-3];
+		last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
+		last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp));	// 0   le0 le1 le2
+		itmp -= data[-3] - data[-4];
+		last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0));
+		last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp));	// le0 le1 le2 le3
+
+		total_err0 = total_err1 = total_err3 = _mm_setzero_si128();
+		for(i = 0; i < data_len; i++) {
+			__m128i err0, err1;
+			err0 = _mm_cvtsi32_si128(data[i]);								// 0   0   0   e0
+			err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0));			// e0  e0  e0  e0
+#if 1 /* OPT_SSE */
+			err1 = _mm_sub_epi32(err1, last_error);
+			last_error = _mm_srli_si128(last_error, 4);						// 0   le0 le1 le2
+			err1 = _mm_sub_epi32(err1, last_error);
+			last_error = _mm_srli_si128(last_error, 4);						// 0   0   le0 le1
+			err1 = _mm_sub_epi32(err1, last_error);
+			last_error = _mm_srli_si128(last_error, 4);						// 0   0   0   le0
+			err1 = _mm_sub_epi32(err1, last_error);							// e1  e2  e3  e4
+#else
+			last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8));	// le0  le1  le2+le0  le3+le1
+			last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4));	// le0  le1+le0  le2+le0+le1  le3+le1+le2+le0
+			err1 = _mm_sub_epi32(err1, last_error);							// e1  e2  e3  e4
+#endif
+			last_error = _mm_alignr_epi8(err0, err1, 4);					// e0  e1  e2  e3
+
+			err0 = _mm_abs_epi32(err0);
+			err1 = _mm_abs_epi32(err1);										// |e1| |e2| |e3| |e4|
+
+			total_err0 = _mm_add_epi64(total_err0, err0);					//        0       te0
+			err0 = _mm_unpacklo_epi32(err1, zero);							//   0  |e3|   0  |e4|
+			err1 = _mm_unpackhi_epi32(err1, zero);							//   0  |e1|   0  |e2|
+			total_err3 = _mm_add_epi64(total_err3, err0);					//       te3      te4
+			total_err1 = _mm_add_epi64(total_err1, err1);					//       te1      te2
+		}
+	}
+
+	m128i_to_i64(total_error_0, total_err0);
+	m128i_to_i64(total_error_4, total_err3);
+	m128i_to_i64(total_error_2, total_err1);
+	total_err3 = _mm_srli_si128(total_err3,	8);							//         0      te3
+	total_err1 = _mm_srli_si128(total_err1, 8);							//         0      te1
+	m128i_to_i64(total_error_3, total_err3);
+	m128i_to_i64(total_error_1, total_err1);
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+
+	return order;
+}
+
+#endif /* FLAC__SSSE3_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/float.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/float.c
new file mode 100644
index 00000000..1e258275
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/float.c
@@ -0,0 +1,302 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "FLAC/assert.h"
+#include "share/compat.h"
+#include "private/float.h"
+
+#ifdef FLAC__INTEGER_ONLY_LIBRARY
+
+const FLAC__fixedpoint FLAC__FP_ZERO = 0;
+const FLAC__fixedpoint FLAC__FP_ONE_HALF = 0x00008000;
+const FLAC__fixedpoint FLAC__FP_ONE = 0x00010000;
+const FLAC__fixedpoint FLAC__FP_LN2 = 45426;
+const FLAC__fixedpoint FLAC__FP_E = 178145;
+
+/* Lookup tables for Knuth's logarithm algorithm */
+#define LOG2_LOOKUP_PRECISION 16
+static const FLAC__uint32 log2_lookup[][LOG2_LOOKUP_PRECISION] = {
+	{
+		/*
+		 * 0 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00000001,
+		/* lg(4/3) = */ 0x00000000,
+		/* lg(8/7) = */ 0x00000000,
+		/* lg(16/15) = */ 0x00000000,
+		/* lg(32/31) = */ 0x00000000,
+		/* lg(64/63) = */ 0x00000000,
+		/* lg(128/127) = */ 0x00000000,
+		/* lg(256/255) = */ 0x00000000,
+		/* lg(512/511) = */ 0x00000000,
+		/* lg(1024/1023) = */ 0x00000000,
+		/* lg(2048/2047) = */ 0x00000000,
+		/* lg(4096/4095) = */ 0x00000000,
+		/* lg(8192/8191) = */ 0x00000000,
+		/* lg(16384/16383) = */ 0x00000000,
+		/* lg(32768/32767) = */ 0x00000000
+	},
+	{
+		/*
+		 * 4 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00000010,
+		/* lg(4/3) = */ 0x00000007,
+		/* lg(8/7) = */ 0x00000003,
+		/* lg(16/15) = */ 0x00000001,
+		/* lg(32/31) = */ 0x00000001,
+		/* lg(64/63) = */ 0x00000000,
+		/* lg(128/127) = */ 0x00000000,
+		/* lg(256/255) = */ 0x00000000,
+		/* lg(512/511) = */ 0x00000000,
+		/* lg(1024/1023) = */ 0x00000000,
+		/* lg(2048/2047) = */ 0x00000000,
+		/* lg(4096/4095) = */ 0x00000000,
+		/* lg(8192/8191) = */ 0x00000000,
+		/* lg(16384/16383) = */ 0x00000000,
+		/* lg(32768/32767) = */ 0x00000000
+	},
+	{
+		/*
+		 * 8 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00000100,
+		/* lg(4/3) = */ 0x0000006a,
+		/* lg(8/7) = */ 0x00000031,
+		/* lg(16/15) = */ 0x00000018,
+		/* lg(32/31) = */ 0x0000000c,
+		/* lg(64/63) = */ 0x00000006,
+		/* lg(128/127) = */ 0x00000003,
+		/* lg(256/255) = */ 0x00000001,
+		/* lg(512/511) = */ 0x00000001,
+		/* lg(1024/1023) = */ 0x00000000,
+		/* lg(2048/2047) = */ 0x00000000,
+		/* lg(4096/4095) = */ 0x00000000,
+		/* lg(8192/8191) = */ 0x00000000,
+		/* lg(16384/16383) = */ 0x00000000,
+		/* lg(32768/32767) = */ 0x00000000
+	},
+	{
+		/*
+		 * 12 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00001000,
+		/* lg(4/3) = */ 0x000006a4,
+		/* lg(8/7) = */ 0x00000315,
+		/* lg(16/15) = */ 0x0000017d,
+		/* lg(32/31) = */ 0x000000bc,
+		/* lg(64/63) = */ 0x0000005d,
+		/* lg(128/127) = */ 0x0000002e,
+		/* lg(256/255) = */ 0x00000017,
+		/* lg(512/511) = */ 0x0000000c,
+		/* lg(1024/1023) = */ 0x00000006,
+		/* lg(2048/2047) = */ 0x00000003,
+		/* lg(4096/4095) = */ 0x00000001,
+		/* lg(8192/8191) = */ 0x00000001,
+		/* lg(16384/16383) = */ 0x00000000,
+		/* lg(32768/32767) = */ 0x00000000
+	},
+	{
+		/*
+		 * 16 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00010000,
+		/* lg(4/3) = */ 0x00006a40,
+		/* lg(8/7) = */ 0x00003151,
+		/* lg(16/15) = */ 0x000017d6,
+		/* lg(32/31) = */ 0x00000bba,
+		/* lg(64/63) = */ 0x000005d1,
+		/* lg(128/127) = */ 0x000002e6,
+		/* lg(256/255) = */ 0x00000172,
+		/* lg(512/511) = */ 0x000000b9,
+		/* lg(1024/1023) = */ 0x0000005c,
+		/* lg(2048/2047) = */ 0x0000002e,
+		/* lg(4096/4095) = */ 0x00000017,
+		/* lg(8192/8191) = */ 0x0000000c,
+		/* lg(16384/16383) = */ 0x00000006,
+		/* lg(32768/32767) = */ 0x00000003
+	},
+	{
+		/*
+		 * 20 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00100000,
+		/* lg(4/3) = */ 0x0006a3fe,
+		/* lg(8/7) = */ 0x00031513,
+		/* lg(16/15) = */ 0x00017d60,
+		/* lg(32/31) = */ 0x0000bb9d,
+		/* lg(64/63) = */ 0x00005d10,
+		/* lg(128/127) = */ 0x00002e59,
+		/* lg(256/255) = */ 0x00001721,
+		/* lg(512/511) = */ 0x00000b8e,
+		/* lg(1024/1023) = */ 0x000005c6,
+		/* lg(2048/2047) = */ 0x000002e3,
+		/* lg(4096/4095) = */ 0x00000171,
+		/* lg(8192/8191) = */ 0x000000b9,
+		/* lg(16384/16383) = */ 0x0000005c,
+		/* lg(32768/32767) = */ 0x0000002e
+	},
+	{
+		/*
+		 * 24 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x01000000,
+		/* lg(4/3) = */ 0x006a3fe6,
+		/* lg(8/7) = */ 0x00315130,
+		/* lg(16/15) = */ 0x0017d605,
+		/* lg(32/31) = */ 0x000bb9ca,
+		/* lg(64/63) = */ 0x0005d0fc,
+		/* lg(128/127) = */ 0x0002e58f,
+		/* lg(256/255) = */ 0x0001720e,
+		/* lg(512/511) = */ 0x0000b8d8,
+		/* lg(1024/1023) = */ 0x00005c61,
+		/* lg(2048/2047) = */ 0x00002e2d,
+		/* lg(4096/4095) = */ 0x00001716,
+		/* lg(8192/8191) = */ 0x00000b8b,
+		/* lg(16384/16383) = */ 0x000005c5,
+		/* lg(32768/32767) = */ 0x000002e3
+	},
+	{
+		/*
+		 * 28 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x10000000,
+		/* lg(4/3) = */ 0x06a3fe5c,
+		/* lg(8/7) = */ 0x03151301,
+		/* lg(16/15) = */ 0x017d6049,
+		/* lg(32/31) = */ 0x00bb9ca6,
+		/* lg(64/63) = */ 0x005d0fba,
+		/* lg(128/127) = */ 0x002e58f7,
+		/* lg(256/255) = */ 0x001720da,
+		/* lg(512/511) = */ 0x000b8d87,
+		/* lg(1024/1023) = */ 0x0005c60b,
+		/* lg(2048/2047) = */ 0x0002e2d7,
+		/* lg(4096/4095) = */ 0x00017160,
+		/* lg(8192/8191) = */ 0x0000b8ad,
+		/* lg(16384/16383) = */ 0x00005c56,
+		/* lg(32768/32767) = */ 0x00002e2b
+	}
+};
+
+#if 0
+static const FLAC__uint64 log2_lookup_wide[] = {
+	{
+		/*
+		 * 32 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ FLAC__U64L(0x100000000),
+		/* lg(4/3) = */ FLAC__U64L(0x6a3fe5c6),
+		/* lg(8/7) = */ FLAC__U64L(0x31513015),
+		/* lg(16/15) = */ FLAC__U64L(0x17d60497),
+		/* lg(32/31) = */ FLAC__U64L(0x0bb9ca65),
+		/* lg(64/63) = */ FLAC__U64L(0x05d0fba2),
+		/* lg(128/127) = */ FLAC__U64L(0x02e58f74),
+		/* lg(256/255) = */ FLAC__U64L(0x01720d9c),
+		/* lg(512/511) = */ FLAC__U64L(0x00b8d875),
+		/* lg(1024/1023) = */ FLAC__U64L(0x005c60aa),
+		/* lg(2048/2047) = */ FLAC__U64L(0x002e2d72),
+		/* lg(4096/4095) = */ FLAC__U64L(0x00171600),
+		/* lg(8192/8191) = */ FLAC__U64L(0x000b8ad2),
+		/* lg(16384/16383) = */ FLAC__U64L(0x0005c55d),
+		/* lg(32768/32767) = */ FLAC__U64L(0x0002e2ac)
+	},
+	{
+		/*
+		 * 48 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ FLAC__U64L(0x1000000000000),
+		/* lg(4/3) = */ FLAC__U64L(0x6a3fe5c60429),
+		/* lg(8/7) = */ FLAC__U64L(0x315130157f7a),
+		/* lg(16/15) = */ FLAC__U64L(0x17d60496cfbb),
+		/* lg(32/31) = */ FLAC__U64L(0xbb9ca64ecac),
+		/* lg(64/63) = */ FLAC__U64L(0x5d0fba187cd),
+		/* lg(128/127) = */ FLAC__U64L(0x2e58f7441ee),
+		/* lg(256/255) = */ FLAC__U64L(0x1720d9c06a8),
+		/* lg(512/511) = */ FLAC__U64L(0xb8d8752173),
+		/* lg(1024/1023) = */ FLAC__U64L(0x5c60aa252e),
+		/* lg(2048/2047) = */ FLAC__U64L(0x2e2d71b0d8),
+		/* lg(4096/4095) = */ FLAC__U64L(0x1716001719),
+		/* lg(8192/8191) = */ FLAC__U64L(0xb8ad1de1b),
+		/* lg(16384/16383) = */ FLAC__U64L(0x5c55d640d),
+		/* lg(32768/32767) = */ FLAC__U64L(0x2e2abcf52)
+	}
+};
+#endif
+
+FLAC__uint32 FLAC__fixedpoint_log2(FLAC__uint32 x, uint32_t fracbits, uint32_t precision)
+{
+	const FLAC__uint32 ONE = (1u << fracbits);
+	const FLAC__uint32 *table = log2_lookup[fracbits >> 2];
+
+	FLAC__ASSERT(fracbits < 32);
+	FLAC__ASSERT((fracbits & 0x3) == 0);
+
+	if(x < ONE)
+		return 0;
+
+	if(precision > LOG2_LOOKUP_PRECISION)
+		precision = LOG2_LOOKUP_PRECISION;
+
+	/* Knuth's algorithm for computing logarithms, optimized for base-2 with lookup tables */
+	{
+		FLAC__uint32 y = 0;
+		FLAC__uint32 z = x >> 1, k = 1;
+		while (x > ONE && k < precision) {
+			if (x - z >= ONE) {
+				x -= z;
+				z = x >> k;
+				y += table[k];
+			}
+			else {
+				z >>= 1;
+				k++;
+			}
+		}
+		return y;
+	}
+}
+
+#endif /* defined FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/format.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/format.c
new file mode 100644
index 00000000..77391d8c
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/format.c
@@ -0,0 +1,603 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h> /* for qsort() */
+#include <string.h> /* for memset() */
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+#include "share/alloc.h"
+#include "share/compat.h"
+#include "private/format.h"
+#include "private/macros.h"
+
+#if (defined GIT_COMMIT_HASH && defined GIT_COMMIT_DATE)
+# ifdef GIT_COMMIT_TAG
+FLAC_API const char *FLAC__VERSION_STRING = GIT_COMMIT_TAG;
+FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC " GIT_COMMIT_TAG " " GIT_COMMIT_DATE;
+# else
+FLAC_API const char *FLAC__VERSION_STRING = "git-" GIT_COMMIT_HASH " " GIT_COMMIT_DATE;
+FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC git-" GIT_COMMIT_HASH " " GIT_COMMIT_DATE;
+# endif
+#else
+/* PACKAGE_VERSION should come from configure */
+FLAC_API const char *FLAC__VERSION_STRING = PACKAGE_VERSION;
+FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC " PACKAGE_VERSION " 20220922";
+#endif
+
+FLAC_API const FLAC__byte FLAC__STREAM_SYNC_STRING[4] = { 'f','L','a','C' };
+FLAC_API const uint32_t FLAC__STREAM_SYNC = 0x664C6143;
+FLAC_API const uint32_t FLAC__STREAM_SYNC_LEN = 32; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN = 16; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN = 16; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN = 24; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN = 24; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN = 20; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN = 3; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN = 5; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN = 36; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN = 128; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_APPLICATION_ID_LEN = 32; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN = 64; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN = 64; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN = 16; /* bits */
+
+FLAC_API const FLAC__uint64 FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER = FLAC__U64L(0xffffffffffffffff);
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN = 32; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN = 64; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN = 8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN = 3*8; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN = 64; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN = 8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN = 12*8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN = 1; /* bit */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN = 1; /* bit */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN = 6+13*8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN = 8; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN = 128*8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN = 64; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN = 1; /* bit */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN = 7+258*8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN = 8; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_TYPE_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_COLORS_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN = 32; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_IS_LAST_LEN = 1; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_TYPE_LEN = 7; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_LENGTH_LEN = 24; /* bits */
+
+FLAC_API const uint32_t FLAC__FRAME_HEADER_SYNC = 0x3ffe;
+FLAC_API const uint32_t FLAC__FRAME_HEADER_SYNC_LEN = 14; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_RESERVED_LEN = 1; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN = 1; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_BLOCK_SIZE_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_SAMPLE_RATE_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN = 3; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_ZERO_PAD_LEN = 1; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_CRC_LEN = 8; /* bits */
+
+FLAC_API const uint32_t FLAC__FRAME_FOOTER_CRC_LEN = 16; /* bits */
+
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_TYPE_LEN = 2; /* bits */
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN = 5; /* bits */
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN = 5; /* bits */
+
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER = 15; /* == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN)-1 */
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER = 31; /* == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN)-1 */
+
+FLAC_API const char * const FLAC__EntropyCodingMethodTypeString[] = {
+	"PARTITIONED_RICE",
+	"PARTITIONED_RICE2"
+};
+
+FLAC_API const uint32_t FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN = 5; /* bits */
+
+FLAC_API const uint32_t FLAC__SUBFRAME_ZERO_PAD_LEN = 1; /* bits */
+FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_LEN = 6; /* bits */
+FLAC_API const uint32_t FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN = 1; /* bits */
+
+FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK = 0x00;
+FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK = 0x02;
+FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK = 0x10;
+FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK = 0x40;
+
+FLAC_API const char * const FLAC__SubframeTypeString[] = {
+	"CONSTANT",
+	"VERBATIM",
+	"FIXED",
+	"LPC"
+};
+
+FLAC_API const char * const FLAC__ChannelAssignmentString[] = {
+	"INDEPENDENT",
+	"LEFT_SIDE",
+	"RIGHT_SIDE",
+	"MID_SIDE"
+};
+
+FLAC_API const char * const FLAC__FrameNumberTypeString[] = {
+	"FRAME_NUMBER_TYPE_FRAME_NUMBER",
+	"FRAME_NUMBER_TYPE_SAMPLE_NUMBER"
+};
+
+FLAC_API const char * const FLAC__MetadataTypeString[] = {
+	"STREAMINFO",
+	"PADDING",
+	"APPLICATION",
+	"SEEKTABLE",
+	"VORBIS_COMMENT",
+	"CUESHEET",
+	"PICTURE"
+};
+
+FLAC_API const char * const FLAC__StreamMetadata_Picture_TypeString[] = {
+	"Other",
+	"32x32 pixels 'file icon' (PNG only)",
+	"Other file icon",
+	"Cover (front)",
+	"Cover (back)",
+	"Leaflet page",
+	"Media (e.g. label side of CD)",
+	"Lead artist/lead performer/soloist",
+	"Artist/performer",
+	"Conductor",
+	"Band/Orchestra",
+	"Composer",
+	"Lyricist/text writer",
+	"Recording Location",
+	"During recording",
+	"During performance",
+	"Movie/video screen capture",
+	"A bright coloured fish",
+	"Illustration",
+	"Band/artist logotype",
+	"Publisher/Studio logotype"
+};
+
+FLAC_API FLAC__bool FLAC__format_sample_rate_is_valid(uint32_t sample_rate)
+{
+	if(sample_rate == 0 || sample_rate > FLAC__MAX_SAMPLE_RATE) {
+		return false;
+	}
+	else
+		return true;
+}
+
+FLAC_API FLAC__bool FLAC__format_blocksize_is_subset(uint32_t blocksize, uint32_t sample_rate)
+{
+	if(blocksize > 16384)
+		return false;
+	else if(sample_rate <= 48000 && blocksize > 4608)
+		return false;
+	else
+		return true;
+}
+
+FLAC_API FLAC__bool FLAC__format_sample_rate_is_subset(uint32_t sample_rate)
+{
+	if( // sample rate is not subset if
+		!FLAC__format_sample_rate_is_valid(sample_rate) || // sample rate is invalid or
+		sample_rate >= ((1u << 16) * 10) || // sample rate is larger then or equal to 655360 or
+		(sample_rate >= (1u << 16) && sample_rate % 10 != 0) //sample rate is >= 65536 and not divisible by 10
+	) {
+		return false;
+	}
+	else
+		return true;
+}
+
+/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
+FLAC_API FLAC__bool FLAC__format_seektable_is_legal(const FLAC__StreamMetadata_SeekTable *seek_table)
+{
+	uint32_t i;
+	FLAC__uint64 prev_sample_number = 0;
+	FLAC__bool got_prev = false;
+
+	FLAC__ASSERT(0 != seek_table);
+
+	for(i = 0; i < seek_table->num_points; i++) {
+		if(got_prev) {
+			if(
+				seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
+				seek_table->points[i].sample_number <= prev_sample_number
+			)
+				return false;
+		}
+		prev_sample_number = seek_table->points[i].sample_number;
+		got_prev = true;
+	}
+
+	return true;
+}
+
+/* used as the sort predicate for qsort() */
+static int seekpoint_compare_(const FLAC__StreamMetadata_SeekPoint *l, const FLAC__StreamMetadata_SeekPoint *r)
+{
+	/* we don't just 'return l->sample_number - r->sample_number' since the result (FLAC__int64) might overflow an 'int' */
+	if(l->sample_number == r->sample_number)
+		return 0;
+	else if(l->sample_number < r->sample_number)
+		return -1;
+	else
+		return 1;
+}
+
+/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
+FLAC_API uint32_t FLAC__format_seektable_sort(FLAC__StreamMetadata_SeekTable *seek_table)
+{
+	uint32_t i, j;
+	FLAC__bool first;
+
+	FLAC__ASSERT(0 != seek_table);
+
+	if (seek_table->num_points == 0)
+		return 0;
+
+	/* sort the seekpoints */
+	qsort(seek_table->points, seek_table->num_points, sizeof(FLAC__StreamMetadata_SeekPoint), (int (*)(const void *, const void *))seekpoint_compare_);
+
+	/* uniquify the seekpoints */
+	first = true;
+	for(i = j = 0; i < seek_table->num_points; i++) {
+		if(seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) {
+			if(!first) {
+				if(seek_table->points[i].sample_number == seek_table->points[j-1].sample_number)
+					continue;
+			}
+		}
+		first = false;
+		seek_table->points[j++] = seek_table->points[i];
+	}
+
+	for(i = j; i < seek_table->num_points; i++) {
+		seek_table->points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
+		seek_table->points[i].stream_offset = 0;
+		seek_table->points[i].frame_samples = 0;
+	}
+
+	return j;
+}
+
+/*
+ * also disallows non-shortest-form encodings, c.f.
+ *   http://www.unicode.org/versions/corrigendum1.html
+ * and a more clear explanation at the end of this section:
+ *   http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ */
+static uint32_t utf8len_(const FLAC__byte *utf8)
+{
+	FLAC__ASSERT(0 != utf8);
+	if ((utf8[0] & 0x80) == 0) {
+		return 1;
+	}
+	else if ((utf8[0] & 0xE0) == 0xC0 && (utf8[1] & 0xC0) == 0x80) {
+		if ((utf8[0] & 0xFE) == 0xC0) /* overlong sequence check */
+			return 0;
+		return 2;
+	}
+	else if ((utf8[0] & 0xF0) == 0xE0 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80) {
+		if (utf8[0] == 0xE0 && (utf8[1] & 0xE0) == 0x80) /* overlong sequence check */
+			return 0;
+		/* illegal surrogates check (U+D800...U+DFFF and U+FFFE...U+FFFF) */
+		if (utf8[0] == 0xED && (utf8[1] & 0xE0) == 0xA0) /* D800-DFFF */
+			return 0;
+		if (utf8[0] == 0xEF && utf8[1] == 0xBF && (utf8[2] & 0xFE) == 0xBE) /* FFFE-FFFF */
+			return 0;
+		return 3;
+	}
+	else if ((utf8[0] & 0xF8) == 0xF0 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80) {
+		if (utf8[0] == 0xF0 && (utf8[1] & 0xF0) == 0x80) /* overlong sequence check */
+			return 0;
+		return 4;
+	}
+	else if ((utf8[0] & 0xFC) == 0xF8 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80 && (utf8[4] & 0xC0) == 0x80) {
+		if (utf8[0] == 0xF8 && (utf8[1] & 0xF8) == 0x80) /* overlong sequence check */
+			return 0;
+		return 5;
+	}
+	else if ((utf8[0] & 0xFE) == 0xFC && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80 && (utf8[4] & 0xC0) == 0x80 && (utf8[5] & 0xC0) == 0x80) {
+		if (utf8[0] == 0xFC && (utf8[1] & 0xFC) == 0x80) /* overlong sequence check */
+			return 0;
+		return 6;
+	}
+	else {
+		return 0;
+	}
+}
+
+FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_name_is_legal(const char *name)
+{
+	char c;
+	for(c = *name; c; c = *(++name))
+		if(c < 0x20 || c == 0x3d || c > 0x7d)
+			return false;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_value_is_legal(const FLAC__byte *value, uint32_t length)
+{
+	if(length == (uint32_t)(-1)) {
+		while(*value) {
+			uint32_t n = utf8len_(value);
+			if(n == 0)
+				return false;
+			value += n;
+		}
+	}
+	else {
+		const FLAC__byte *end = value + length;
+		while(value < end) {
+			uint32_t n = utf8len_(value);
+			if(n == 0)
+				return false;
+			value += n;
+		}
+		if(value != end)
+			return false;
+	}
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_is_legal(const FLAC__byte *entry, uint32_t length)
+{
+	const FLAC__byte *s, *end;
+
+	for(s = entry, end = s + length; s < end && *s != '='; s++) {
+		if(*s < 0x20 || *s > 0x7D)
+			return false;
+	}
+	if(s == end)
+		return false;
+
+	s++; /* skip '=' */
+
+	while(s < end) {
+		uint32_t n = utf8len_(s);
+		if(n == 0)
+			return false;
+		s += n;
+	}
+	if(s != end)
+		return false;
+
+	return true;
+}
+
+/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
+FLAC_API FLAC__bool FLAC__format_cuesheet_is_legal(const FLAC__StreamMetadata_CueSheet *cue_sheet, FLAC__bool check_cd_da_subset, const char **violation)
+{
+	uint32_t i, j;
+
+	if(check_cd_da_subset) {
+		if(cue_sheet->lead_in < 2 * 44100) {
+			if(violation) *violation = "CD-DA cue sheet must have a lead-in length of at least 2 seconds";
+			return false;
+		}
+		if(cue_sheet->lead_in % 588 != 0) {
+			if(violation) *violation = "CD-DA cue sheet lead-in length must be evenly divisible by 588 samples";
+			return false;
+		}
+	}
+
+	if(cue_sheet->num_tracks == 0) {
+		if(violation) *violation = "cue sheet must have at least one track (the lead-out)";
+		return false;
+	}
+
+	if(check_cd_da_subset && cue_sheet->tracks[cue_sheet->num_tracks-1].number != 170) {
+		if(violation) *violation = "CD-DA cue sheet must have a lead-out track number 170 (0xAA)";
+		return false;
+	}
+
+	for(i = 0; i < cue_sheet->num_tracks; i++) {
+		if(cue_sheet->tracks[i].number == 0) {
+			if(violation) *violation = "cue sheet may not have a track number 0";
+			return false;
+		}
+
+		if(check_cd_da_subset) {
+			if(!((cue_sheet->tracks[i].number >= 1 && cue_sheet->tracks[i].number <= 99) || cue_sheet->tracks[i].number == 170)) {
+				if(violation) *violation = "CD-DA cue sheet track number must be 1-99 or 170";
+				return false;
+			}
+		}
+
+		if(check_cd_da_subset && cue_sheet->tracks[i].offset % 588 != 0) {
+			if(violation) {
+				if(i == cue_sheet->num_tracks-1) /* the lead-out track... */
+					*violation = "CD-DA cue sheet lead-out offset must be evenly divisible by 588 samples";
+				else
+					*violation = "CD-DA cue sheet track offset must be evenly divisible by 588 samples";
+			}
+			return false;
+		}
+
+		if(i < cue_sheet->num_tracks - 1) {
+			if(cue_sheet->tracks[i].num_indices == 0) {
+				if(violation) *violation = "cue sheet track must have at least one index point";
+				return false;
+			}
+
+			if(cue_sheet->tracks[i].indices[0].number > 1) {
+				if(violation) *violation = "cue sheet track's first index number must be 0 or 1";
+				return false;
+			}
+		}
+
+		for(j = 0; j < cue_sheet->tracks[i].num_indices; j++) {
+			if(check_cd_da_subset && cue_sheet->tracks[i].indices[j].offset % 588 != 0) {
+				if(violation) *violation = "CD-DA cue sheet track index offset must be evenly divisible by 588 samples";
+				return false;
+			}
+
+			if(j > 0) {
+				if(cue_sheet->tracks[i].indices[j].number != cue_sheet->tracks[i].indices[j-1].number + 1) {
+					if(violation) *violation = "cue sheet track index numbers must increase by 1";
+					return false;
+				}
+			}
+		}
+	}
+
+	return true;
+}
+
+/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
+FLAC_API FLAC__bool FLAC__format_picture_is_legal(const FLAC__StreamMetadata_Picture *picture, const char **violation)
+{
+	char *p;
+	FLAC__byte *b;
+
+	for(p = picture->mime_type; *p; p++) {
+		if(*p < 0x20 || *p > 0x7e) {
+			if(violation) *violation = "MIME type string must contain only printable ASCII characters (0x20-0x7e)";
+			return false;
+		}
+	}
+
+	for(b = picture->description; *b; ) {
+		uint32_t n = utf8len_(b);
+		if(n == 0) {
+			if(violation) *violation = "description string must be valid UTF-8";
+			return false;
+		}
+		b += n;
+	}
+
+	return true;
+}
+
+/*
+ * These routines are private to libFLAC
+ */
+uint32_t FLAC__format_get_max_rice_partition_order(uint32_t blocksize, uint32_t predictor_order)
+{
+	return
+		FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(
+			FLAC__format_get_max_rice_partition_order_from_blocksize(blocksize),
+			blocksize,
+			predictor_order
+		);
+}
+
+uint32_t FLAC__format_get_max_rice_partition_order_from_blocksize(uint32_t blocksize)
+{
+	uint32_t max_rice_partition_order = 0;
+	while(!(blocksize & 1)) {
+		max_rice_partition_order++;
+		blocksize >>= 1;
+	}
+	return flac_min(FLAC__MAX_RICE_PARTITION_ORDER, max_rice_partition_order);
+}
+
+uint32_t FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(uint32_t limit, uint32_t blocksize, uint32_t predictor_order)
+{
+	uint32_t max_rice_partition_order = limit;
+
+	while(max_rice_partition_order > 0 && (blocksize >> max_rice_partition_order) <= predictor_order)
+		max_rice_partition_order--;
+
+	FLAC__ASSERT(
+		(max_rice_partition_order == 0 && blocksize >= predictor_order) ||
+		(max_rice_partition_order > 0 && blocksize >> max_rice_partition_order > predictor_order)
+	);
+
+	return max_rice_partition_order;
+}
+
+void FLAC__format_entropy_coding_method_partitioned_rice_contents_init(FLAC__EntropyCodingMethod_PartitionedRiceContents *object)
+{
+	FLAC__ASSERT(0 != object);
+
+	object->parameters = 0;
+	object->raw_bits = 0;
+	object->capacity_by_order = 0;
+}
+
+void FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(FLAC__EntropyCodingMethod_PartitionedRiceContents *object)
+{
+	FLAC__ASSERT(0 != object);
+
+	if(0 != object->parameters)
+		free(object->parameters);
+	if(0 != object->raw_bits)
+		free(object->raw_bits);
+	FLAC__format_entropy_coding_method_partitioned_rice_contents_init(object);
+}
+
+#if defined(_MSC_VER)
+// silence three MSVC warnings 'result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)'
+#pragma warning ( disable : 4334 )
+#endif
+
+FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(FLAC__EntropyCodingMethod_PartitionedRiceContents *object, uint32_t max_partition_order)
+{
+	FLAC__ASSERT(0 != object);
+
+	if(object->capacity_by_order < max_partition_order || object->parameters == NULL || object->raw_bits == NULL) {
+		if(0 == (object->parameters = safe_realloc_(object->parameters, sizeof(uint32_t)*(1 << max_partition_order))))
+			return false;
+		if(0 == (object->raw_bits = safe_realloc_(object->raw_bits, sizeof(uint32_t)*(1 << max_partition_order))))
+			return false;
+		memset(object->raw_bits, 0, sizeof(uint32_t)*(1 << max_partition_order));
+		object->capacity_by_order = max_partition_order;
+	}
+
+	return true;
+}
+
+#if defined(_MSC_VER)
+#pragma warning ( default : 4334 )
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/cpu_asm.nasm b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/cpu_asm.nasm
new file mode 100644
index 00000000..b0b2701b
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/cpu_asm.nasm
@@ -0,0 +1,119 @@
+;  vim:filetype=nasm ts=8
+
+;  libFLAC - Free Lossless Audio Codec library
+;  Copyright (C) 2001-2009  Josh Coalson
+;  Copyright (C) 2011-2022  Xiph.Org Foundation
+;
+;  Redistribution and use in source and binary forms, with or without
+;  modification, are permitted provided that the following conditions
+;  are met:
+;
+;  - Redistributions of source code must retain the above copyright
+;  notice, this list of conditions and the following disclaimer.
+;
+;  - Redistributions in binary form must reproduce the above copyright
+;  notice, this list of conditions and the following disclaimer in the
+;  documentation and/or other materials provided with the distribution.
+;
+;  - Neither the name of the Xiph.org Foundation nor the names of its
+;  contributors may be used to endorse or promote products derived from
+;  this software without specific prior written permission.
+;
+;  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+;  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+;  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+;  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+;  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+;  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+;  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+;  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+;  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+;  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+;  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+%include "nasm.h"
+
+	data_section
+
+cglobal FLAC__cpu_have_cpuid_asm_ia32
+cglobal FLAC__cpu_info_asm_ia32
+
+	code_section
+
+; **********************************************************************
+;
+; FLAC__uint32 FLAC__cpu_have_cpuid_asm_ia32()
+;
+
+cident FLAC__cpu_have_cpuid_asm_ia32
+	pushfd
+	pop	eax
+	mov	edx, eax
+	xor	eax, 0x00200000
+	push	eax
+	popfd
+	pushfd
+	pop	eax
+	xor	eax, edx
+	and	eax, 0x00200000
+	shr	eax, 0x15
+	push	edx
+	popfd
+	ret
+
+
+; **********************************************************************
+;
+; void FLAC__cpu_info_asm_ia32(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx)
+;
+
+cident FLAC__cpu_info_asm_ia32
+	;[esp + 8] == level
+	;[esp + 12] == flags_eax
+	;[esp + 16] == flags_ebx
+	;[esp + 20] == flags_ecx
+	;[esp + 24] == flags_edx
+
+	push	ebx
+	call	FLAC__cpu_have_cpuid_asm_ia32
+	test	eax, eax
+	jz	.no_cpuid
+
+	mov	eax, [esp + 8]
+	and	eax, 0x80000000
+	cpuid
+	cmp	eax, [esp + 8]
+	jb	.no_cpuid
+	xor	ecx, ecx
+	mov	eax, [esp + 8]
+	cpuid
+
+	push	ebx
+	;[esp + 16] == flags_eax
+	mov	ebx, [esp + 16]
+	mov	[ebx], eax
+	pop	eax
+	;[esp + 16] == flags_ebx
+	mov	ebx, [esp + 16]
+	mov	[ebx], eax
+	mov	ebx, [esp + 20]
+	mov	[ebx], ecx
+	mov	ebx, [esp + 24]
+	mov	[ebx], edx
+	jmp	.end
+
+.no_cpuid:
+	xor	eax, eax
+	mov	ebx, [esp + 12]
+	mov	[ebx], eax
+	mov	ebx, [esp + 16]
+	mov	[ebx], eax
+	mov	ebx, [esp + 20]
+	mov	[ebx], eax
+	mov	ebx, [esp + 24]
+	mov	[ebx], eax
+.end:
+	pop	ebx
+	ret
+
+; end
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/fixed_asm.nasm b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/fixed_asm.nasm
new file mode 100644
index 00000000..be1ee064
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/fixed_asm.nasm
@@ -0,0 +1,309 @@
+;  vim:filetype=nasm ts=8
+
+;  libFLAC - Free Lossless Audio Codec library
+;  Copyright (C) 2001-2009  Josh Coalson
+;  Copyright (C) 2011-2022  Xiph.Org Foundation
+;
+;  Redistribution and use in source and binary forms, with or without
+;  modification, are permitted provided that the following conditions
+;  are met:
+;
+;  - Redistributions of source code must retain the above copyright
+;  notice, this list of conditions and the following disclaimer.
+;
+;  - Redistributions in binary form must reproduce the above copyright
+;  notice, this list of conditions and the following disclaimer in the
+;  documentation and/or other materials provided with the distribution.
+;
+;  - Neither the name of the Xiph.org Foundation nor the names of its
+;  contributors may be used to endorse or promote products derived from
+;  this software without specific prior written permission.
+;
+;  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+;  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+;  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+;  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+;  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+;  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+;  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+;  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+;  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+;  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+;  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+%include "nasm.h"
+
+	data_section
+
+cglobal FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov
+
+	code_section
+
+; **********************************************************************
+;
+; unsigned FLAC__fixed_compute_best_predictor(const FLAC__int32 *data, unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+; {
+; 	FLAC__int32 last_error_0 = data[-1];
+; 	FLAC__int32 last_error_1 = data[-1] - data[-2];
+; 	FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]);
+; 	FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]);
+; 	FLAC__int32 error, save;
+; 	FLAC__uint32 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
+; 	unsigned i, order;
+;
+; 	for(i = 0; i < data_len; i++) {
+; 		error  = data[i]     ; total_error_0 += local_abs(error);                      save = error;
+; 		error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
+; 		error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
+; 		error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
+; 		error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
+; 	}
+;
+; 	if(total_error_0 < min(min(min(total_error_1, total_error_2), total_error_3), total_error_4))
+; 		order = 0;
+; 	else if(total_error_1 < min(min(total_error_2, total_error_3), total_error_4))
+; 		order = 1;
+; 	else if(total_error_2 < min(total_error_3, total_error_4))
+; 		order = 2;
+; 	else if(total_error_3 < total_error_4)
+; 		order = 3;
+; 	else
+; 		order = 4;
+;
+; 	residual_bits_per_sample[0] = (float)((data_len > 0 && total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+; 	residual_bits_per_sample[1] = (float)((data_len > 0 && total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+; 	residual_bits_per_sample[2] = (float)((data_len > 0 && total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+; 	residual_bits_per_sample[3] = (float)((data_len > 0 && total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+; 	residual_bits_per_sample[4] = (float)((data_len > 0 && total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+;
+; 	return order;
+; }
+	ALIGN 16
+cident FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov
+
+	; esp + 36 == data[]
+	; esp + 40 == data_len
+	; esp + 44 == residual_bits_per_sample[]
+
+	push	ebp
+	push	ebx
+	push	esi
+	push	edi
+	sub	esp, byte 16
+	; qword [esp] == temp space for loading FLAC__uint64s to FPU regs
+
+	; ebx == &data[i]
+	; ecx == loop counter (i)
+	; ebp == order
+	; mm0 == total_error_1:total_error_0
+	; mm1 == total_error_2:total_error_3
+	; mm2 == :total_error_4
+	; mm3 == last_error_1:last_error_0
+	; mm4 == last_error_2:last_error_3
+
+	mov	ecx, [esp + 40]			; ecx = data_len
+	test	ecx, ecx
+	jz	near .data_len_is_0
+
+	mov	ebx, [esp + 36]			; ebx = data[]
+	movd	mm3, [ebx - 4]			; mm3 = 0:last_error_0
+	movd	mm2, [ebx - 8]			; mm2 = 0:data[-2]
+	movd	mm1, [ebx - 12]			; mm1 = 0:data[-3]
+	movd	mm0, [ebx - 16]			; mm0 = 0:data[-4]
+	movq	mm5, mm3			; mm5 = 0:last_error_0
+	psubd	mm5, mm2			; mm5 = 0:last_error_1
+	punpckldq	mm3, mm5		; mm3 = last_error_1:last_error_0
+	psubd	mm2, mm1			; mm2 = 0:data[-2] - data[-3]
+	psubd	mm5, mm2			; mm5 = 0:last_error_2
+	movq	mm4, mm5			; mm4 = 0:last_error_2
+	psubd	mm4, mm2			; mm4 = 0:last_error_2 - (data[-2] - data[-3])
+	paddd	mm4, mm1			; mm4 = 0:last_error_2 - (data[-2] - 2 * data[-3])
+	psubd	mm4, mm0			; mm4 = 0:last_error_3
+	punpckldq	mm4, mm5		; mm4 = last_error_2:last_error_3
+	pxor	mm0, mm0			; mm0 = total_error_1:total_error_0
+	pxor	mm1, mm1			; mm1 = total_error_2:total_error_3
+	pxor	mm2, mm2			; mm2 = 0:total_error_4
+
+	ALIGN 16
+.loop:
+	movd	mm7, [ebx]			; mm7 = 0:error_0
+	add	ebx, byte 4
+	movq	mm6, mm7			; mm6 = 0:error_0
+	psubd	mm7, mm3			; mm7 = :error_1
+	punpckldq	mm6, mm7		; mm6 = error_1:error_0
+	movq	mm5, mm6			; mm5 = error_1:error_0
+	movq	mm7, mm6			; mm7 = error_1:error_0
+	psubd	mm5, mm3			; mm5 = error_2:
+	movq	mm3, mm6			; mm3 = error_1:error_0
+	psrad	mm6, 31
+	pxor	mm7, mm6
+	psubd	mm7, mm6			; mm7 = abs(error_1):abs(error_0)
+	paddd	mm0, mm7			; mm0 = total_error_1:total_error_0
+	movq	mm6, mm5			; mm6 = error_2:
+	psubd	mm5, mm4			; mm5 = error_3:
+	punpckhdq	mm5, mm6		; mm5 = error_2:error_3
+	movq	mm7, mm5			; mm7 = error_2:error_3
+	movq	mm6, mm5			; mm6 = error_2:error_3
+	psubd	mm5, mm4			; mm5 = :error_4
+	movq	mm4, mm6			; mm4 = error_2:error_3
+	psrad	mm6, 31
+	pxor	mm7, mm6
+	psubd	mm7, mm6			; mm7 = abs(error_2):abs(error_3)
+	paddd	mm1, mm7			; mm1 = total_error_2:total_error_3
+	movq	mm6, mm5			; mm6 = :error_4
+	psrad	mm5, 31
+	pxor	mm6, mm5
+	psubd	mm6, mm5			; mm6 = :abs(error_4)
+	paddd	mm2, mm6			; mm2 = :total_error_4
+
+	dec	ecx
+	jnz	short .loop
+
+; 	if(total_error_0 < min(min(min(total_error_1, total_error_2), total_error_3), total_error_4))
+; 		order = 0;
+; 	else if(total_error_1 < min(min(total_error_2, total_error_3), total_error_4))
+; 		order = 1;
+; 	else if(total_error_2 < min(total_error_3, total_error_4))
+; 		order = 2;
+; 	else if(total_error_3 < total_error_4)
+; 		order = 3;
+; 	else
+; 		order = 4;
+	movq	mm3, mm0			; mm3 = total_error_1:total_error_0
+	movd	edi, mm2			; edi = total_error_4
+	movd	esi, mm1			; esi = total_error_3
+	movd	eax, mm0			; eax = total_error_0
+	punpckhdq	mm1, mm1		; mm1 = total_error_2:total_error_2
+	punpckhdq	mm3, mm3		; mm3 = total_error_1:total_error_1
+	movd	edx, mm1			; edx = total_error_2
+	movd	ecx, mm3			; ecx = total_error_1
+
+	xor	ebx, ebx
+	xor	ebp, ebp
+	inc	ebx
+	cmp	ecx, eax
+	cmovb	eax, ecx			; eax = min(total_error_0, total_error_1)
+	cmovbe	ebp, ebx
+	inc	ebx
+	cmp	edx, eax
+	cmovb	eax, edx			; eax = min(total_error_0, total_error_1, total_error_2)
+	cmovbe	ebp, ebx
+	inc	ebx
+	cmp	esi, eax
+	cmovb	eax, esi			; eax = min(total_error_0, total_error_1, total_error_2, total_error_3)
+	cmovbe	ebp, ebx
+	inc	ebx
+	cmp	edi, eax
+	cmovb	eax, edi			; eax = min(total_error_0, total_error_1, total_error_2, total_error_3, total_error_4)
+	cmovbe	ebp, ebx
+	movd	ebx, mm0			; ebx = total_error_0
+	emms
+
+	; 	residual_bits_per_sample[0] = (float)((data_len > 0 && total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	; 	residual_bits_per_sample[1] = (float)((data_len > 0 && total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	; 	residual_bits_per_sample[2] = (float)((data_len > 0 && total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	; 	residual_bits_per_sample[3] = (float)((data_len > 0 && total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	; 	residual_bits_per_sample[4] = (float)((data_len > 0 && total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+	xor	eax, eax
+	fild	dword [esp + 40]		; ST = data_len (NOTE: assumes data_len is <2gigs)
+.rbps_0:
+	test	ebx, ebx
+	jz	.total_error_0_is_0
+	fld1					; ST = 1.0 data_len
+	mov	[esp], ebx
+	mov	[esp + 4], eax			; [esp] = (FLAC__uint64)total_error_0
+	mov	ebx, [esp + 44]
+	fild	qword [esp]			; ST = total_error_0 1.0 data_len
+	fdiv	st2				; ST = total_error_0/data_len 1.0 data_len
+	fldln2					; ST = ln2 total_error_0/data_len 1.0 data_len
+	fmulp	st1				; ST = ln2*total_error_0/data_len 1.0 data_len
+	fyl2x					; ST = log2(ln2*total_error_0/data_len) data_len
+	fstp	dword [ebx]			; residual_bits_per_sample[0] = log2(ln2*total_error_0/data_len)   ST = data_len
+	jmp	short .rbps_1
+.total_error_0_is_0:
+	mov	ebx, [esp + 44]
+	mov	[ebx], eax			; residual_bits_per_sample[0] = 0.0
+.rbps_1:
+	test	ecx, ecx
+	jz	.total_error_1_is_0
+	fld1					; ST = 1.0 data_len
+	mov	[esp], ecx
+	mov	[esp + 4], eax			; [esp] = (FLAC__uint64)total_error_1
+	fild	qword [esp]			; ST = total_error_1 1.0 data_len
+	fdiv	st2				; ST = total_error_1/data_len 1.0 data_len
+	fldln2					; ST = ln2 total_error_1/data_len 1.0 data_len
+	fmulp	st1				; ST = ln2*total_error_1/data_len 1.0 data_len
+	fyl2x					; ST = log2(ln2*total_error_1/data_len) data_len
+	fstp	dword [ebx + 4]			; residual_bits_per_sample[1] = log2(ln2*total_error_1/data_len)   ST = data_len
+	jmp	short .rbps_2
+.total_error_1_is_0:
+	mov	[ebx + 4], eax			; residual_bits_per_sample[1] = 0.0
+.rbps_2:
+	test	edx, edx
+	jz	.total_error_2_is_0
+	fld1					; ST = 1.0 data_len
+	mov	[esp], edx
+	mov	[esp + 4], eax			; [esp] = (FLAC__uint64)total_error_2
+	fild	qword [esp]			; ST = total_error_2 1.0 data_len
+	fdiv	st2				; ST = total_error_2/data_len 1.0 data_len
+	fldln2					; ST = ln2 total_error_2/data_len 1.0 data_len
+	fmulp	st1				; ST = ln2*total_error_2/data_len 1.0 data_len
+	fyl2x					; ST = log2(ln2*total_error_2/data_len) data_len
+	fstp	dword [ebx + 8]			; residual_bits_per_sample[2] = log2(ln2*total_error_2/data_len)   ST = data_len
+	jmp	short .rbps_3
+.total_error_2_is_0:
+	mov	[ebx + 8], eax			; residual_bits_per_sample[2] = 0.0
+.rbps_3:
+	test	esi, esi
+	jz	.total_error_3_is_0
+	fld1					; ST = 1.0 data_len
+	mov	[esp], esi
+	mov	[esp + 4], eax			; [esp] = (FLAC__uint64)total_error_3
+	fild	qword [esp]			; ST = total_error_3 1.0 data_len
+	fdiv	st2				; ST = total_error_3/data_len 1.0 data_len
+	fldln2					; ST = ln2 total_error_3/data_len 1.0 data_len
+	fmulp	st1				; ST = ln2*total_error_3/data_len 1.0 data_len
+	fyl2x					; ST = log2(ln2*total_error_3/data_len) data_len
+	fstp	dword [ebx + 12]		; residual_bits_per_sample[3] = log2(ln2*total_error_3/data_len)   ST = data_len
+	jmp	short .rbps_4
+.total_error_3_is_0:
+	mov	[ebx + 12], eax			; residual_bits_per_sample[3] = 0.0
+.rbps_4:
+	test	edi, edi
+	jz	.total_error_4_is_0
+	fld1					; ST = 1.0 data_len
+	mov	[esp], edi
+	mov	[esp + 4], eax			; [esp] = (FLAC__uint64)total_error_4
+	fild	qword [esp]			; ST = total_error_4 1.0 data_len
+	fdiv	st2				; ST = total_error_4/data_len 1.0 data_len
+	fldln2					; ST = ln2 total_error_4/data_len 1.0 data_len
+	fmulp	st1				; ST = ln2*total_error_4/data_len 1.0 data_len
+	fyl2x					; ST = log2(ln2*total_error_4/data_len) data_len
+	fstp	dword [ebx + 16]		; residual_bits_per_sample[4] = log2(ln2*total_error_4/data_len)   ST = data_len
+	jmp	short .rbps_end
+.total_error_4_is_0:
+	mov	[ebx + 16], eax			; residual_bits_per_sample[4] = 0.0
+.rbps_end:
+	fstp	st0				; ST = [empty]
+	jmp	short .end
+.data_len_is_0:
+	; data_len == 0, so residual_bits_per_sample[*] = 0.0
+	xor	ebp, ebp
+	mov	edi, [esp + 44]
+	mov	[edi], ebp
+	mov	[edi + 4], ebp
+	mov	[edi + 8], ebp
+	mov	[edi + 12], ebp
+	mov	[edi + 16], ebp
+	add	ebp, byte 4			; order = 4
+
+.end:
+	mov	eax, ebp			; return order
+	add	esp, byte 16
+	pop	edi
+	pop	esi
+	pop	ebx
+	pop	ebp
+	ret
+
+; end
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/lpc_asm.nasm b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/lpc_asm.nasm
new file mode 100644
index 00000000..8be9e7aa
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/lpc_asm.nasm
@@ -0,0 +1,727 @@
+;  vim:filetype=nasm ts=8
+
+;  libFLAC - Free Lossless Audio Codec library
+;  Copyright (C) 2001-2009  Josh Coalson
+;  Copyright (C) 2011-2022  Xiph.Org Foundation
+;
+;  Redistribution and use in source and binary forms, with or without
+;  modification, are permitted provided that the following conditions
+;  are met:
+;
+;  - Redistributions of source code must retain the above copyright
+;  notice, this list of conditions and the following disclaimer.
+;
+;  - Redistributions in binary form must reproduce the above copyright
+;  notice, this list of conditions and the following disclaimer in the
+;  documentation and/or other materials provided with the distribution.
+;
+;  - Neither the name of the Xiph.org Foundation nor the names of its
+;  contributors may be used to endorse or promote products derived from
+;  this software without specific prior written permission.
+;
+;  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+;  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+;  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+;  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+;  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+;  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+;  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+;  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+;  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+;  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+;  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+%include "nasm.h"
+
+	data_section
+
+cglobal FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32
+cglobal FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx
+cglobal FLAC__lpc_compute_residual_from_qlp_coefficients_wide_asm_ia32
+
+	code_section
+
+;void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
+;
+;	for(i = 0; i < data_len; i++) {
+;		sum = 0;
+;		for(j = 0; j < order; j++)
+;			sum += qlp_coeff[j] * data[i-j-1];
+;		residual[i] = data[i] - (sum >> lp_quantization);
+;	}
+;
+	ALIGN	16
+cident FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32
+	;[esp + 40]	residual[]
+	;[esp + 36]	lp_quantization
+	;[esp + 32]	order
+	;[esp + 28]	qlp_coeff[]
+	;[esp + 24]	data_len
+	;[esp + 20]	data[]
+
+	;ASSERT(order > 0)
+
+	push	ebp
+	push	ebx
+	push	esi
+	push	edi
+
+	mov	esi, [esp + 20]			; esi = data[]
+	mov	edi, [esp + 40]			; edi = residual[]
+	mov	eax, [esp + 32]			; eax = order
+	mov	ebx, [esp + 24]			; ebx = data_len
+
+	test	ebx, ebx
+	jz	near .end			; do nothing if data_len == 0
+.begin:
+	cmp	eax, byte 1
+	jg	short .i_1more
+
+	mov	ecx, [esp + 28]
+	mov	edx, [ecx]			; edx = qlp_coeff[0]
+	mov	eax, [esi - 4]			; eax = data[-1]
+	mov	ecx, [esp + 36]			; cl = lp_quantization
+	ALIGN	16
+.i_1_loop_i:
+	imul	eax, edx
+	sar	eax, cl
+	neg	eax
+	add	eax, [esi]
+	mov	[edi], eax
+	mov	eax, [esi]
+	add	edi, byte 4
+	add	esi, byte 4
+	dec	ebx
+	jnz	.i_1_loop_i
+
+	jmp	.end
+
+.i_1more:
+	cmp	eax, byte 32			; for order <= 32 there is a faster routine
+	jbe	short .i_32
+
+	; This version is here just for completeness, since FLAC__MAX_LPC_ORDER == 32
+	ALIGN 16
+.i_32more_loop_i:
+	xor	ebp, ebp
+	mov	ecx, [esp + 32]
+	mov	edx, ecx
+	shl	edx, 2
+	add	edx, [esp + 28]
+	neg	ecx
+	ALIGN	16
+.i_32more_loop_j:
+	sub	edx, byte 4
+	mov	eax, [edx]
+	imul	eax, [esi + 4 * ecx]
+	add	ebp, eax
+	inc	ecx
+	jnz	short .i_32more_loop_j
+
+	mov	ecx, [esp + 36]
+	sar	ebp, cl
+	neg	ebp
+	add	ebp, [esi]
+	mov	[edi], ebp
+	add	esi, byte 4
+	add	edi, byte 4
+
+	dec	ebx
+	jnz	.i_32more_loop_i
+
+	jmp	.end
+
+.mov_eip_to_eax:
+	mov	eax, [esp]
+	ret
+
+.i_32:
+	sub	edi, esi
+	neg	eax
+	lea	edx, [eax + eax * 8 + .jumper_0 - .get_eip0]
+	call	.mov_eip_to_eax
+.get_eip0:
+	add	edx, eax
+	inc	edx
+	mov	eax, [esp + 28]			; eax = qlp_coeff[]
+	xor	ebp, ebp
+	jmp	edx
+
+	mov	ecx, [eax + 124]
+	imul	ecx, [esi - 128]
+	add	ebp, ecx
+	mov	ecx, [eax + 120]
+	imul	ecx, [esi - 124]
+	add	ebp, ecx
+	mov	ecx, [eax + 116]
+	imul	ecx, [esi - 120]
+	add	ebp, ecx
+	mov	ecx, [eax + 112]
+	imul	ecx, [esi - 116]
+	add	ebp, ecx
+	mov	ecx, [eax + 108]
+	imul	ecx, [esi - 112]
+	add	ebp, ecx
+	mov	ecx, [eax + 104]
+	imul	ecx, [esi - 108]
+	add	ebp, ecx
+	mov	ecx, [eax + 100]
+	imul	ecx, [esi - 104]
+	add	ebp, ecx
+	mov	ecx, [eax + 96]
+	imul	ecx, [esi - 100]
+	add	ebp, ecx
+	mov	ecx, [eax + 92]
+	imul	ecx, [esi - 96]
+	add	ebp, ecx
+	mov	ecx, [eax + 88]
+	imul	ecx, [esi - 92]
+	add	ebp, ecx
+	mov	ecx, [eax + 84]
+	imul	ecx, [esi - 88]
+	add	ebp, ecx
+	mov	ecx, [eax + 80]
+	imul	ecx, [esi - 84]
+	add	ebp, ecx
+	mov	ecx, [eax + 76]
+	imul	ecx, [esi - 80]
+	add	ebp, ecx
+	mov	ecx, [eax + 72]
+	imul	ecx, [esi - 76]
+	add	ebp, ecx
+	mov	ecx, [eax + 68]
+	imul	ecx, [esi - 72]
+	add	ebp, ecx
+	mov	ecx, [eax + 64]
+	imul	ecx, [esi - 68]
+	add	ebp, ecx
+	mov	ecx, [eax + 60]
+	imul	ecx, [esi - 64]
+	add	ebp, ecx
+	mov	ecx, [eax + 56]
+	imul	ecx, [esi - 60]
+	add	ebp, ecx
+	mov	ecx, [eax + 52]
+	imul	ecx, [esi - 56]
+	add	ebp, ecx
+	mov	ecx, [eax + 48]
+	imul	ecx, [esi - 52]
+	add	ebp, ecx
+	mov	ecx, [eax + 44]
+	imul	ecx, [esi - 48]
+	add	ebp, ecx
+	mov	ecx, [eax + 40]
+	imul	ecx, [esi - 44]
+	add	ebp, ecx
+	mov	ecx, [eax + 36]
+	imul	ecx, [esi - 40]
+	add	ebp, ecx
+	mov	ecx, [eax + 32]
+	imul	ecx, [esi - 36]
+	add	ebp, ecx
+	mov	ecx, [eax + 28]
+	imul	ecx, [esi - 32]
+	add	ebp, ecx
+	mov	ecx, [eax + 24]
+	imul	ecx, [esi - 28]
+	add	ebp, ecx
+	mov	ecx, [eax + 20]
+	imul	ecx, [esi - 24]
+	add	ebp, ecx
+	mov	ecx, [eax + 16]
+	imul	ecx, [esi - 20]
+	add	ebp, ecx
+	mov	ecx, [eax + 12]
+	imul	ecx, [esi - 16]
+	add	ebp, ecx
+	mov	ecx, [eax + 8]
+	imul	ecx, [esi - 12]
+	add	ebp, ecx
+	mov	ecx, [eax + 4]
+	imul	ecx, [esi - 8]
+	add	ebp, ecx
+	mov	ecx, [eax]			; there is one byte missing
+	imul	ecx, [esi - 4]
+	add	ebp, ecx
+.jumper_0:
+
+	mov	ecx, [esp + 36]
+	sar	ebp, cl
+	neg	ebp
+	add	ebp, [esi]
+	mov	[edi + esi], ebp
+	add	esi, byte 4
+
+	dec	ebx
+	jz	short .end
+	xor	ebp, ebp
+	jmp	edx
+
+.end:
+	pop	edi
+	pop	esi
+	pop	ebx
+	pop	ebp
+	ret
+
+; WATCHOUT: this routine works on 16 bit data which means bits-per-sample for
+; the channel and qlp_coeffs must be <= 16.  Especially note that this routine
+; cannot be used for side-channel coded 16bps channels since the effective bps
+; is 17.
+	ALIGN	16
+cident FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx
+	;[esp + 40]	residual[]
+	;[esp + 36]	lp_quantization
+	;[esp + 32]	order
+	;[esp + 28]	qlp_coeff[]
+	;[esp + 24]	data_len
+	;[esp + 20]	data[]
+
+	;ASSERT(order > 0)
+
+	push	ebp
+	push	ebx
+	push	esi
+	push	edi
+
+	mov	esi, [esp + 20]			; esi = data[]
+	mov	edi, [esp + 40]			; edi = residual[]
+	mov	eax, [esp + 32]			; eax = order
+	mov	ebx, [esp + 24]			; ebx = data_len
+
+	test	ebx, ebx
+	jz	near .end			; do nothing if data_len == 0
+	dec	ebx
+	test	ebx, ebx
+	jz	near .last_one
+
+	mov	edx, [esp + 28]			; edx = qlp_coeff[]
+	movd	mm6, [esp + 36]			; mm6 = 0:lp_quantization
+	mov	ebp, esp
+
+	and	esp, 0xfffffff8
+
+	xor	ecx, ecx
+.copy_qlp_loop:
+	push	word [edx + 4 * ecx]
+	inc	ecx
+	cmp	ecx, eax
+	jnz	short .copy_qlp_loop
+
+	and	ecx, 0x3
+	test	ecx, ecx
+	je	short .za_end
+	sub	ecx, byte 4
+.za_loop:
+	push	word 0
+	inc	eax
+	inc	ecx
+	jnz	short .za_loop
+.za_end:
+
+	movq	mm5, [esp + 2 * eax - 8]
+	movd	mm4, [esi - 16]
+	punpckldq	mm4, [esi - 12]
+	movd	mm0, [esi - 8]
+	punpckldq	mm0, [esi - 4]
+	packssdw	mm4, mm0
+
+	cmp	eax, byte 4
+	jnbe	short .mmx_4more
+
+	ALIGN	16
+.mmx_4_loop_i:
+	movd	mm1, [esi]
+	movq	mm3, mm4
+	punpckldq	mm1, [esi + 4]
+	psrlq	mm4, 16
+	movq	mm0, mm1
+	psllq	mm0, 48
+	por	mm4, mm0
+	movq	mm2, mm4
+	psrlq	mm4, 16
+	pxor	mm0, mm0
+	punpckhdq	mm0, mm1
+	pmaddwd	mm3, mm5
+	pmaddwd	mm2, mm5
+	psllq	mm0, 16
+	por	mm4, mm0
+	movq	mm0, mm3
+	punpckldq	mm3, mm2
+	punpckhdq	mm0, mm2
+	paddd	mm3, mm0
+	psrad	mm3, mm6
+	psubd	mm1, mm3
+	movd	[edi], mm1
+	punpckhdq	mm1, mm1
+	movd	[edi + 4], mm1
+
+	add	edi, byte 8
+	add	esi, byte 8
+
+	sub	ebx, 2
+	jg	.mmx_4_loop_i
+	jmp	.mmx_end
+
+.mmx_4more:
+	shl	eax, 2
+	neg	eax
+	add	eax, byte 16
+
+	ALIGN	16
+.mmx_4more_loop_i:
+	movd	mm1, [esi]
+	punpckldq	mm1, [esi + 4]
+	movq	mm3, mm4
+	psrlq	mm4, 16
+	movq	mm0, mm1
+	psllq	mm0, 48
+	por	mm4, mm0
+	movq	mm2, mm4
+	psrlq	mm4, 16
+	pxor	mm0, mm0
+	punpckhdq	mm0, mm1
+	pmaddwd	mm3, mm5
+	pmaddwd	mm2, mm5
+	psllq	mm0, 16
+	por	mm4, mm0
+
+	mov	ecx, esi
+	add	ecx, eax
+	mov	edx, esp
+
+	ALIGN	16
+.mmx_4more_loop_j:
+	movd	mm0, [ecx - 16]
+	movd	mm7, [ecx - 8]
+	punpckldq	mm0, [ecx - 12]
+	punpckldq	mm7, [ecx - 4]
+	packssdw	mm0, mm7
+	pmaddwd	mm0, [edx]
+	punpckhdq	mm7, mm7
+	paddd	mm3, mm0
+	movd	mm0, [ecx - 12]
+	punpckldq	mm0, [ecx - 8]
+	punpckldq	mm7, [ecx]
+	packssdw	mm0, mm7
+	pmaddwd	mm0, [edx]
+	paddd	mm2, mm0
+
+	add	edx, byte 8
+	add	ecx, byte 16
+	cmp	ecx, esi
+	jnz	.mmx_4more_loop_j
+
+	movq	mm0, mm3
+	punpckldq	mm3, mm2
+	punpckhdq	mm0, mm2
+	paddd	mm3, mm0
+	psrad	mm3, mm6
+	psubd	mm1, mm3
+	movd	[edi], mm1
+	punpckhdq	mm1, mm1
+	movd	[edi + 4], mm1
+
+	add	edi, byte 8
+	add	esi, byte 8
+
+	sub	ebx, 2
+	jg	near .mmx_4more_loop_i
+
+.mmx_end:
+	emms
+	mov	esp, ebp
+.last_one:
+	mov	eax, [esp + 32]
+	inc	ebx
+	jnz	near FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32.begin
+
+.end:
+	pop	edi
+	pop	esi
+	pop	ebx
+	pop	ebp
+	ret
+
+; **********************************************************************
+;
+;void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 *data, unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 residual[])
+; {
+; 	unsigned i, j;
+; 	FLAC__int64 sum;
+;
+; 	FLAC__ASSERT(order > 0);
+;
+;	for(i = 0; i < data_len; i++) {
+;		sum = 0;
+;		for(j = 0; j < order; j++)
+;			sum += qlp_coeff[j] * (FLAC__int64)data[i-j-1];
+;		residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
+;	}
+; }
+	ALIGN	16
+cident FLAC__lpc_compute_residual_from_qlp_coefficients_wide_asm_ia32
+	;[esp + 40]	residual[]
+	;[esp + 36]	lp_quantization
+	;[esp + 32]	order
+	;[esp + 28]	qlp_coeff[]
+	;[esp + 24]	data_len
+	;[esp + 20]	data[]
+
+	;ASSERT(order > 0)
+	;ASSERT(order <= 32)
+	;ASSERT(lp_quantization <= 31)
+
+	push	ebp
+	push	ebx
+	push	esi
+	push	edi
+
+	mov	ebx, [esp + 24]			; ebx = data_len
+	test	ebx, ebx
+	jz	near .end			; do nothing if data_len == 0
+
+.begin:
+	mov	eax, [esp + 32]			; eax = order
+	cmp	eax, 1
+	jg	short .i_32
+
+	mov	esi, [esp + 40]			; esi = residual[]
+	mov	edi, [esp + 20]			; edi = data[]
+	mov	ecx, [esp + 28]			; ecx = qlp_coeff[]
+	mov	ebp, [ecx]			; ebp = qlp_coeff[0]
+	mov	eax, [edi - 4]			; eax = data[-1]
+	mov	ecx, [esp + 36]			; cl = lp_quantization
+	ALIGN	16
+.i_1_loop_i:
+	imul	ebp				; edx:eax = qlp_coeff[0] * (FLAC__int64)data[i-1]
+	shrd	eax, edx, cl			; 0 <= lp_quantization <= 15
+	neg	eax
+	add	eax, [edi]
+	mov	[esi], eax
+	mov	eax, [edi]
+	add	esi, 4
+	add	edi, 4
+	dec	ebx
+	jnz	.i_1_loop_i
+	jmp	.end
+
+.mov_eip_to_eax:
+	mov	eax, [esp]
+	ret
+
+.i_32:	; eax = order
+	neg	eax
+	add	eax, eax
+	lea	ebp, [eax + eax * 4 + .jumper_0 - .get_eip0]
+	call	.mov_eip_to_eax
+.get_eip0:
+	add	ebp, eax
+	inc	ebp				; compensate for the shorter opcode on the last iteration
+
+	mov	ebx, [esp + 28]			; ebx = qlp_coeff[]
+	mov	edi, [esp + 20]			; edi = data[]
+	sub	[esp + 40], edi			; residual[] -= data[]
+
+	xor	ecx, ecx
+	xor	esi, esi
+	jmp	ebp
+
+;eax = --
+;edx = --
+;ecx = 0
+;esi = 0
+;
+;ebx = qlp_coeff[]
+;edi = data[]
+;ebp = @address
+
+	mov	eax, [ebx + 124]		; eax =  qlp_coeff[31]
+	imul	dword [edi - 128]		; edx:eax =  qlp_coeff[31] * data[i-32]
+	add	ecx, eax
+	adc	esi, edx			; sum += qlp_coeff[31] * data[i-32]
+
+	mov	eax, [ebx + 120]		; eax =  qlp_coeff[30]
+	imul	dword [edi - 124]		; edx:eax =  qlp_coeff[30] * data[i-31]
+	add	ecx, eax
+	adc	esi, edx			; sum += qlp_coeff[30] * data[i-31]
+
+	mov	eax, [ebx + 116]
+	imul	dword [edi - 120]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 112]
+	imul	dword [edi - 116]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 108]
+	imul	dword [edi - 112]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 104]
+	imul	dword [edi - 108]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 100]
+	imul	dword [edi - 104]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 96]
+	imul	dword [edi - 100]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 92]
+	imul	dword [edi - 96]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 88]
+	imul	dword [edi - 92]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 84]
+	imul	dword [edi - 88]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 80]
+	imul	dword [edi - 84]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 76]
+	imul	dword [edi - 80]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 72]
+	imul	dword [edi - 76]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 68]
+	imul	dword [edi - 72]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 64]
+	imul	dword [edi - 68]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 60]
+	imul	dword [edi - 64]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 56]
+	imul	dword [edi - 60]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 52]
+	imul	dword [edi - 56]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 48]
+	imul	dword [edi - 52]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 44]
+	imul	dword [edi - 48]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 40]
+	imul	dword [edi - 44]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 36]
+	imul	dword [edi - 40]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 32]
+	imul	dword [edi - 36]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 28]
+	imul	dword [edi - 32]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 24]
+	imul	dword [edi - 28]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 20]
+	imul	dword [edi - 24]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 16]
+	imul	dword [edi - 20]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 12]
+	imul	dword [edi - 16]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 8]
+	imul	dword [edi - 12]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx + 4]
+	imul	dword [edi - 8]
+	add	ecx, eax
+	adc	esi, edx
+
+	mov	eax, [ebx]			; eax =  qlp_coeff[ 0] (NOTE: one byte missing from instruction)
+	imul	dword [edi - 4]			; edx:eax =  qlp_coeff[ 0] * data[i- 1]
+	add	ecx, eax
+	adc	esi, edx			; sum += qlp_coeff[ 0] * data[i- 1]
+
+.jumper_0:
+	mov	edx, ecx
+;esi:edx = sum
+	mov	ecx, [esp + 36]			; cl = lp_quantization
+	shrd	edx, esi, cl			; edx = (sum >> lp_quantization)
+;eax = --
+;ecx = --
+;edx = sum >> lp_q
+;esi = --
+	neg	edx				; edx = -(sum >> lp_quantization)
+	mov	eax, [esp + 40]			; residual[] - data[]
+	add	edx, [edi]			; edx = data[i] - (sum >> lp_quantization)
+	mov	[edi + eax], edx
+	add	edi, 4
+
+	dec	dword [esp + 24]
+	jz	short .end
+	xor	ecx, ecx
+	xor	esi, esi
+	jmp	ebp
+
+.end:
+	pop	edi
+	pop	esi
+	pop	ebx
+	pop	ebp
+	ret
+
+; end
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/nasm.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/nasm.h
new file mode 100644
index 00000000..cdb8bf55
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ia32/nasm.h
@@ -0,0 +1,95 @@
+;  libFLAC - Free Lossless Audio Codec library
+;  Copyright (C) 2001-2009  Josh Coalson
+;  Copyright (C) 2011-2022  Xiph.Org Foundation
+;
+;  Redistribution and use in source and binary forms, with or without
+;  modification, are permitted provided that the following conditions
+;  are met:
+;
+;  - Redistributions of source code must retain the above copyright
+;  notice, this list of conditions and the following disclaimer.
+;
+;  - Redistributions in binary form must reproduce the above copyright
+;  notice, this list of conditions and the following disclaimer in the
+;  documentation and/or other materials provided with the distribution.
+;
+;  - Neither the name of the Xiph.org Foundation nor the names of its
+;  contributors may be used to endorse or promote products derived from
+;  this software without specific prior written permission.
+;
+;  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+;  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+;  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+;  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+;  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+;  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+;  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+;  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+;  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+;  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+;  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+	bits 32
+
+%ifdef OBJ_FORMAT_win32
+	%define FLAC__PUBLIC_NEEDS_UNDERSCORE
+	%idefine code_section section .text align=16 class=CODE use32
+	%idefine data_section section .data align=32 class=DATA use32
+	%idefine bss_section  section .bss  align=32 class=DATA use32
+%elifdef OBJ_FORMAT_aout
+	%define FLAC__PUBLIC_NEEDS_UNDERSCORE
+	%idefine code_section section .text
+	%idefine data_section section .data
+	%idefine bss_section  section .bss
+%elifdef OBJ_FORMAT_aoutb
+	%define FLAC__PUBLIC_NEEDS_UNDERSCORE
+	%idefine code_section section .text
+	%idefine data_section section .data
+	%idefine bss_section  section .bss
+%elifdef OBJ_FORMAT_coff
+	%define FLAC__PUBLIC_NEEDS_UNDERSCORE
+	%idefine code_section section .text
+	%idefine data_section section .data
+	%idefine bss_section  section .bss
+%elifdef OBJ_FORMAT_macho
+	%define FLAC__PUBLIC_NEEDS_UNDERSCORE
+	%idefine code_section section .text
+	%idefine data_section section .data
+	%idefine bss_section  section .bss
+%elifdef OBJ_FORMAT_elf
+	%idefine code_section section .text align=16
+	%idefine data_section section .data align=32
+	%idefine bss_section  section .bss  align=32
+%else
+	%error unsupported object format! ; this directive doesn't really work here
+%endif
+
+%imacro cglobal 1
+	%ifdef FLAC__PUBLIC_NEEDS_UNDERSCORE
+		global _%1
+	%else
+		%if __NASM_MAJOR__ >= 2
+			global %1:function hidden
+		%else
+			global %1
+		%endif
+	%endif
+%endmacro
+
+%imacro cextern 1
+	%ifdef FLAC__PUBLIC_NEEDS_UNDERSCORE
+		extern _%1
+	%else
+		extern %1
+	%endif
+%endmacro
+
+%imacro cident 1
+_%1:
+%1:
+%endmacro
+
+%ifdef OBJ_FORMAT_elf
+section .note.GNU-stack progbits noalloc noexec nowrite align=1
+%endif
+
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/all.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/all.h
new file mode 100644
index 00000000..c64f9acd
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/all.h
@@ -0,0 +1,50 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__ALL_H
+#define FLAC__PRIVATE__ALL_H
+
+#include "bitmath.h"
+#include "bitreader.h"
+#include "bitwriter.h"
+#include "cpu.h"
+#include "crc.h"
+#include "fixed.h"
+#include "float.h"
+#include "format.h"
+#include "lpc.h"
+#include "md5.h"
+#include "memory.h"
+#include "metadata.h"
+#include "stream_encoder_framing.h"
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/bitmath.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/bitmath.h
new file mode 100644
index 00000000..b1dc4e86
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/bitmath.h
@@ -0,0 +1,210 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__BITMATH_H
+#define FLAC__PRIVATE__BITMATH_H
+
+#include "FLAC/ordinals.h"
+#include "FLAC/assert.h"
+
+#include "share/compat.h"
+
+#if defined(_MSC_VER)
+#include <intrin.h> /* for _BitScanReverse* */
+#endif
+
+/* Will never be emitted for MSVC, GCC, Intel compilers */
+static inline uint32_t FLAC__clz_soft_uint32(FLAC__uint32 word)
+{
+	static const uint8_t byte_to_unary_table[] = {
+	8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	};
+
+	return word > 0xffffff ? byte_to_unary_table[word >> 24] :
+		word > 0xffff ? byte_to_unary_table[word >> 16] + 8 :
+		word > 0xff ? byte_to_unary_table[word >> 8] + 16 :
+		byte_to_unary_table[word] + 24;
+}
+
+static inline uint32_t FLAC__clz_uint32(FLAC__uint32 v)
+{
+/* Never used with input 0 */
+	FLAC__ASSERT(v > 0);
+#if defined(__INTEL_COMPILER)
+	return _bit_scan_reverse(v) ^ 31U;
+#elif defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+/* This will translate either to (bsr ^ 31U), clz , ctlz, cntlz, lzcnt depending on
+ * -march= setting or to a software routine in exotic machines. */
+	return __builtin_clz(v);
+#elif defined(_MSC_VER)
+	{
+		uint32_t idx;
+		_BitScanReverse(&idx, v);
+		return idx ^ 31U;
+	}
+#else
+	return FLAC__clz_soft_uint32(v);
+#endif
+}
+
+/* Used when 64-bit bsr/clz is unavailable; can use 32-bit bsr/clz when possible */
+static inline uint32_t FLAC__clz_soft_uint64(FLAC__uint64 word)
+{
+	return (FLAC__uint32)(word>>32) ? FLAC__clz_uint32((FLAC__uint32)(word>>32)) :
+		FLAC__clz_uint32((FLAC__uint32)word) + 32;
+}
+
+static inline uint32_t FLAC__clz_uint64(FLAC__uint64 v)
+{
+	/* Never used with input 0 */
+	FLAC__ASSERT(v > 0);
+#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+	return __builtin_clzll(v);
+#elif (defined(__INTEL_COMPILER) || defined(_MSC_VER)) && (defined(_M_IA64) || defined(_M_X64))
+	{
+		uint32_t idx;
+		_BitScanReverse64(&idx, v);
+		return idx ^ 63U;
+	}
+#else
+	return FLAC__clz_soft_uint64(v);
+#endif
+}
+
+/* These two functions work with input 0 */
+static inline uint32_t FLAC__clz2_uint32(FLAC__uint32 v)
+{
+	if (!v)
+		return 32;
+	return FLAC__clz_uint32(v);
+}
+
+static inline uint32_t FLAC__clz2_uint64(FLAC__uint64 v)
+{
+	if (!v)
+		return 64;
+	return FLAC__clz_uint64(v);
+}
+
+/* An example of what FLAC__bitmath_ilog2() computes:
+ *
+ * ilog2( 0) = assertion failure
+ * ilog2( 1) = 0
+ * ilog2( 2) = 1
+ * ilog2( 3) = 1
+ * ilog2( 4) = 2
+ * ilog2( 5) = 2
+ * ilog2( 6) = 2
+ * ilog2( 7) = 2
+ * ilog2( 8) = 3
+ * ilog2( 9) = 3
+ * ilog2(10) = 3
+ * ilog2(11) = 3
+ * ilog2(12) = 3
+ * ilog2(13) = 3
+ * ilog2(14) = 3
+ * ilog2(15) = 3
+ * ilog2(16) = 4
+ * ilog2(17) = 4
+ * ilog2(18) = 4
+ */
+
+static inline uint32_t FLAC__bitmath_ilog2(FLAC__uint32 v)
+{
+	FLAC__ASSERT(v > 0);
+#if defined(__INTEL_COMPILER)
+	return _bit_scan_reverse(v);
+#elif defined(_MSC_VER)
+	{
+		uint32_t idx;
+		_BitScanReverse(&idx, v);
+		return idx;
+	}
+#else
+	return FLAC__clz_uint32(v) ^ 31U;
+#endif
+}
+
+static inline uint32_t FLAC__bitmath_ilog2_wide(FLAC__uint64 v)
+{
+	FLAC__ASSERT(v > 0);
+#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+	return __builtin_clzll(v) ^ 63U;
+/* Sorry, only supported in x64/Itanium.. and both have fast FPU which makes integer-only encoder pointless */
+#elif (defined(__INTEL_COMPILER) || defined(_MSC_VER)) && (defined(_M_IA64) || defined(_M_X64))
+	{
+		uint32_t idx;
+		_BitScanReverse64(&idx, v);
+		return idx;
+	}
+#else
+/*  Brain-damaged compilers will use the fastest possible way that is,
+	de Bruijn sequences (http://supertech.csail.mit.edu/papers/debruijn.pdf)
+	(C) Timothy B. Terriberry (tterribe@xiph.org) 2001-2009 CC0 (Public domain).
+*/
+	{
+		static const uint8_t DEBRUIJN_IDX64[64]={
+			0, 1, 2, 7, 3,13, 8,19, 4,25,14,28, 9,34,20,40,
+			5,17,26,38,15,46,29,48,10,31,35,54,21,50,41,57,
+			63, 6,12,18,24,27,33,39,16,37,45,47,30,53,49,56,
+			62,11,23,32,36,44,52,55,61,22,43,51,60,42,59,58
+		};
+		v|= v>>1;
+		v|= v>>2;
+		v|= v>>4;
+		v|= v>>8;
+		v|= v>>16;
+		v|= v>>32;
+		v= (v>>1)+1;
+		return DEBRUIJN_IDX64[v*FLAC__U64L(0x218A392CD3D5DBF)>>58&0x3F];
+	}
+#endif
+}
+
+uint32_t FLAC__bitmath_silog2(FLAC__int64 v);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/bitreader.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/bitreader.h
new file mode 100644
index 00000000..694cefc6
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/bitreader.h
@@ -0,0 +1,98 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__BITREADER_H
+#define FLAC__PRIVATE__BITREADER_H
+
+#include <stdio.h> /* for FILE */
+#include "FLAC/ordinals.h"
+#include "cpu.h"
+
+/*
+ * opaque structure definition
+ */
+struct FLAC__BitReader;
+typedef struct FLAC__BitReader FLAC__BitReader;
+
+typedef FLAC__bool (*FLAC__BitReaderReadCallback)(FLAC__byte buffer[], size_t *bytes, void *client_data);
+
+/*
+ * construction, deletion, initialization, etc functions
+ */
+FLAC__BitReader *FLAC__bitreader_new(void);
+void FLAC__bitreader_delete(FLAC__BitReader *br);
+FLAC__bool FLAC__bitreader_init(FLAC__BitReader *br, FLAC__BitReaderReadCallback rcb, void *cd);
+void FLAC__bitreader_free(FLAC__BitReader *br); /* does not 'free(br)' */
+FLAC__bool FLAC__bitreader_clear(FLAC__BitReader *br);
+void FLAC__bitreader_set_framesync_location(FLAC__BitReader *br);
+FLAC__bool FLAC__bitreader_rewind_to_after_last_seen_framesync(FLAC__BitReader *br);
+void FLAC__bitreader_dump(const FLAC__BitReader *br, FILE *out);
+
+/*
+ * CRC functions
+ */
+void FLAC__bitreader_reset_read_crc16(FLAC__BitReader *br, FLAC__uint16 seed);
+FLAC__uint16 FLAC__bitreader_get_read_crc16(FLAC__BitReader *br);
+
+/*
+ * info functions
+ */
+FLAC__bool FLAC__bitreader_is_consumed_byte_aligned(const FLAC__BitReader *br);
+uint32_t FLAC__bitreader_bits_left_for_byte_alignment(const FLAC__BitReader *br);
+uint32_t FLAC__bitreader_get_input_bits_unconsumed(const FLAC__BitReader *br);
+void FLAC__bitreader_set_limit(FLAC__BitReader *br, uint32_t limit);
+void FLAC__bitreader_remove_limit(FLAC__BitReader *br);
+uint32_t FLAC__bitreader_limit_remaining(FLAC__BitReader *br);
+void FLAC__bitreader_limit_invalidate(FLAC__BitReader *br);
+
+/*
+ * read functions
+ */
+
+FLAC__bool FLAC__bitreader_read_raw_uint32(FLAC__BitReader *br, FLAC__uint32 *val, uint32_t bits);
+FLAC__bool FLAC__bitreader_read_raw_int32(FLAC__BitReader *br, FLAC__int32 *val, uint32_t bits);
+FLAC__bool FLAC__bitreader_read_raw_uint64(FLAC__BitReader *br, FLAC__uint64 *val, uint32_t bits);
+FLAC__bool FLAC__bitreader_read_raw_int64(FLAC__BitReader *br, FLAC__int64 *val, uint32_t bits);
+FLAC__bool FLAC__bitreader_read_uint32_little_endian(FLAC__BitReader *br, FLAC__uint32 *val); /*only for bits=32*/
+FLAC__bool FLAC__bitreader_skip_bits_no_crc(FLAC__BitReader *br, uint32_t bits); /* WATCHOUT: does not CRC the skipped data! */ /*@@@@ add to unit tests */
+FLAC__bool FLAC__bitreader_skip_byte_block_aligned_no_crc(FLAC__BitReader *br, uint32_t nvals); /* WATCHOUT: does not CRC the read data! */
+FLAC__bool FLAC__bitreader_read_byte_block_aligned_no_crc(FLAC__BitReader *br, FLAC__byte *val, uint32_t nvals); /* WATCHOUT: does not CRC the read data! */
+FLAC__bool FLAC__bitreader_read_unary_unsigned(FLAC__BitReader *br, uint32_t *val);
+FLAC__bool FLAC__bitreader_read_rice_signed(FLAC__BitReader *br, int *val, uint32_t parameter);
+FLAC__bool FLAC__bitreader_read_rice_signed_block(FLAC__BitReader *br, int vals[], uint32_t nvals, uint32_t parameter);
+#if 0 /* UNUSED */
+FLAC__bool FLAC__bitreader_read_golomb_signed(FLAC__BitReader *br, int *val, uint32_t parameter);
+FLAC__bool FLAC__bitreader_read_golomb_unsigned(FLAC__BitReader *br, uint32_t *val, uint32_t parameter);
+#endif
+FLAC__bool FLAC__bitreader_read_utf8_uint32(FLAC__BitReader *br, FLAC__uint32 *val, FLAC__byte *raw, uint32_t *rawlen);
+FLAC__bool FLAC__bitreader_read_utf8_uint64(FLAC__BitReader *br, FLAC__uint64 *val, FLAC__byte *raw, uint32_t *rawlen);
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/bitwriter.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/bitwriter.h
new file mode 100644
index 00000000..a61bc431
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/bitwriter.h
@@ -0,0 +1,105 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__BITWRITER_H
+#define FLAC__PRIVATE__BITWRITER_H
+
+#include <stdio.h> /* for FILE */
+#include "FLAC/ordinals.h"
+
+/*
+ * opaque structure definition
+ */
+struct FLAC__BitWriter;
+typedef struct FLAC__BitWriter FLAC__BitWriter;
+
+/*
+ * construction, deletion, initialization, etc functions
+ */
+FLAC__BitWriter *FLAC__bitwriter_new(void);
+void FLAC__bitwriter_delete(FLAC__BitWriter *bw);
+FLAC__bool FLAC__bitwriter_init(FLAC__BitWriter *bw);
+void FLAC__bitwriter_free(FLAC__BitWriter *bw); /* does not 'free(buffer)' */
+void FLAC__bitwriter_clear(FLAC__BitWriter *bw);
+void FLAC__bitwriter_dump(const FLAC__BitWriter *bw, FILE *out);
+
+/*
+ * CRC functions
+ *
+ * non-const *bw because they have to cal FLAC__bitwriter_get_buffer()
+ */
+FLAC__bool FLAC__bitwriter_get_write_crc16(FLAC__BitWriter *bw, FLAC__uint16 *crc);
+FLAC__bool FLAC__bitwriter_get_write_crc8(FLAC__BitWriter *bw, FLAC__byte *crc);
+
+/*
+ * info functions
+ */
+FLAC__bool FLAC__bitwriter_is_byte_aligned(const FLAC__BitWriter *bw);
+uint32_t FLAC__bitwriter_get_input_bits_unconsumed(const FLAC__BitWriter *bw); /* can be called anytime, returns total # of bits unconsumed */
+
+/*
+ * direct buffer access
+ *
+ * there may be no calls on the bitwriter between get and release.
+ * the bitwriter continues to own the returned buffer.
+ * before get, bitwriter MUST be byte aligned: check with FLAC__bitwriter_is_byte_aligned()
+ */
+FLAC__bool FLAC__bitwriter_get_buffer(FLAC__BitWriter *bw, const FLAC__byte **buffer, size_t *bytes);
+void FLAC__bitwriter_release_buffer(FLAC__BitWriter *bw);
+
+/*
+ * write functions
+ */
+FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, uint32_t bits);
+FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, uint32_t bits);
+FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, uint32_t bits);
+FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, uint32_t bits);
+FLAC__bool FLAC__bitwriter_write_raw_int64(FLAC__BitWriter *bw, FLAC__int64 val, uint32_t bits);
+FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val); /*only for bits=32*/
+FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], uint32_t nvals);
+FLAC__bool FLAC__bitwriter_write_unary_unsigned(FLAC__BitWriter *bw, uint32_t val);
+uint32_t FLAC__bitwriter_rice_bits(FLAC__int32 val, uint32_t parameter);
+#if 0 /* UNUSED */
+uint32_t FLAC__bitwriter_golomb_bits_signed(int val, uint32_t parameter);
+uint32_t FLAC__bitwriter_golomb_bits_unsigned(uint32_t val, uint32_t parameter);
+#endif
+FLAC__bool FLAC__bitwriter_write_rice_signed(FLAC__BitWriter *bw, FLAC__int32 val, uint32_t parameter);
+FLAC__bool FLAC__bitwriter_write_rice_signed_block(FLAC__BitWriter *bw, const FLAC__int32 *vals, uint32_t nvals, uint32_t parameter);
+#if 0 /* UNUSED */
+FLAC__bool FLAC__bitwriter_write_golomb_signed(FLAC__BitWriter *bw, int val, uint32_t parameter);
+FLAC__bool FLAC__bitwriter_write_golomb_unsigned(FLAC__BitWriter *bw, uint32_t val, uint32_t parameter);
+#endif
+FLAC__bool FLAC__bitwriter_write_utf8_uint32(FLAC__BitWriter *bw, FLAC__uint32 val);
+FLAC__bool FLAC__bitwriter_write_utf8_uint64(FLAC__BitWriter *bw, FLAC__uint64 val);
+FLAC__bool FLAC__bitwriter_zero_pad_to_byte_boundary(FLAC__BitWriter *bw);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/cpu.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/cpu.h
new file mode 100644
index 00000000..335b2f81
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/cpu.h
@@ -0,0 +1,214 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__CPU_H
+#define FLAC__PRIVATE__CPU_H
+
+#include "FLAC/ordinals.h"
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifndef FLAC__CPU_X86_64
+
+#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
+#define FLAC__CPU_X86_64
+#endif
+
+#endif
+
+#ifndef FLAC__CPU_IA32
+
+#if defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) ||defined( __i386) || defined(_M_IX86)
+#define FLAC__CPU_IA32
+#endif
+
+#endif
+
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
+#if FLAC__HAS_X86INTRIN
+/* SSE intrinsics support by ICC/MSVC/GCC */
+#if defined __INTEL_COMPILER
+  #define FLAC__SSE_TARGET(x)
+  #define FLAC__FAST_MATH_TARGET(x)
+  #define FLAC__SSE_SUPPORTED 1
+  #define FLAC__SSE2_SUPPORTED 1
+  #if (__INTEL_COMPILER >= 1000) /* Intel C++ Compiler 10.0 */
+    #define FLAC__SSSE3_SUPPORTED 1
+    #define FLAC__SSE4_1_SUPPORTED 1
+  #endif
+  #ifdef FLAC__USE_AVX
+    #if (__INTEL_COMPILER >= 1110) /* Intel C++ Compiler 11.1 */
+      #define FLAC__AVX_SUPPORTED 1
+    #endif
+    #if (__INTEL_COMPILER >= 1300) /* Intel C++ Compiler 13.0 */
+      #define FLAC__AVX2_SUPPORTED 1
+      #define FLAC__FMA_SUPPORTED 1
+    #endif
+  #endif
+#elif defined __clang__ && __has_attribute(__target__) /* clang */
+  #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
+  #define FLAC__FAST_MATH_TARGET(x) __attribute__ ((__target__ (x)))
+  #if __has_builtin(__builtin_ia32_maxps)
+    #define FLAC__SSE_SUPPORTED 1
+  #endif
+  #if __has_builtin(__builtin_ia32_pmuludq128)
+    #define FLAC__SSE2_SUPPORTED 1
+  #endif
+  #if __has_builtin(__builtin_ia32_pabsd128)
+    #define FLAC__SSSE3_SUPPORTED 1
+  #endif
+  #if __has_builtin(__builtin_ia32_pmuldq128)
+    #define FLAC__SSE4_1_SUPPORTED 1
+  #endif
+  #ifdef FLAC__USE_AVX
+    #if __has_builtin(__builtin_ia32_maxps256)
+      #define FLAC__AVX_SUPPORTED 1
+    #endif
+    #if __has_builtin(__builtin_ia32_pabsd256)
+      #define FLAC__AVX2_SUPPORTED 1
+    #endif
+    #if __has_builtin(__builtin_ia32_vfmaddps)
+      #define FLAC__FMA_SUPPORTED 1
+    #endif
+  #endif
+#elif defined __GNUC__ && !defined __clang__ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) /* GCC 4.9+ */
+  #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
+  #define FLAC__FAST_MATH_TARGET(x) __attribute__ ((__target__ (x), optimize("-ffast-math")))
+  #define FLAC__SSE_SUPPORTED 1
+  #define FLAC__SSE2_SUPPORTED 1
+  #define FLAC__SSSE3_SUPPORTED 1
+  #define FLAC__SSE4_1_SUPPORTED 1
+  #ifdef FLAC__USE_AVX
+    #define FLAC__AVX_SUPPORTED 1
+    #define FLAC__AVX2_SUPPORTED 1
+    #define FLAC__FMA_SUPPORTED 1
+  #endif
+#elif defined _MSC_VER
+  #define FLAC__SSE_TARGET(x)
+  #define FLAC__FAST_MATH_TARGET(x)
+  #define FLAC__SSE_SUPPORTED 1
+  #define FLAC__SSE2_SUPPORTED 1
+  #if (_MSC_VER >= 1500) /* MS Visual Studio 2008 */
+    #define FLAC__SSSE3_SUPPORTED 1
+    #define FLAC__SSE4_1_SUPPORTED 1
+  #endif
+  #ifdef FLAC__USE_AVX
+    #if (_MSC_FULL_VER >= 160040219) /* MS Visual Studio 2010 SP1 */
+      #define FLAC__AVX_SUPPORTED 1
+    #endif
+    #if (_MSC_VER >= 1700) /* MS Visual Studio 2012 */
+      #define FLAC__AVX2_SUPPORTED 1
+      #define FLAC__FMA_SUPPORTED 1
+    #endif
+  #endif
+#else
+  #define FLAC__SSE_TARGET(x)
+  #define FLAC__FAST_MATH_TARGET(x)
+  #ifdef __SSE__
+    #define FLAC__SSE_SUPPORTED 1
+  #endif
+  #ifdef __SSE2__
+    #define FLAC__SSE2_SUPPORTED 1
+  #endif
+  #ifdef __SSSE3__
+    #define FLAC__SSSE3_SUPPORTED 1
+  #endif
+  #ifdef __SSE4_1__
+    #define FLAC__SSE4_1_SUPPORTED 1
+  #endif
+  #ifdef FLAC__USE_AVX
+    #ifdef __AVX__
+      #define FLAC__AVX_SUPPORTED 1
+    #endif
+    #ifdef __AVX2__
+      #define FLAC__AVX2_SUPPORTED 1
+    #endif
+    #ifdef __FMA__
+      #define FLAC__FMA_SUPPORTED 1
+    #endif
+  #endif
+#endif /* compiler version */
+#endif /* intrinsics support */
+
+
+#ifndef FLAC__AVX_SUPPORTED
+#define FLAC__AVX_SUPPORTED 0
+#endif
+
+typedef enum {
+	FLAC__CPUINFO_TYPE_IA32,
+	FLAC__CPUINFO_TYPE_X86_64,
+	FLAC__CPUINFO_TYPE_PPC,
+	FLAC__CPUINFO_TYPE_UNKNOWN
+} FLAC__CPUInfo_Type;
+
+typedef struct {
+	FLAC__bool intel;
+
+	FLAC__bool cmov;
+	FLAC__bool mmx;
+	FLAC__bool sse;
+	FLAC__bool sse2;
+
+	FLAC__bool sse3;
+	FLAC__bool ssse3;
+	FLAC__bool sse41;
+	FLAC__bool sse42;
+	FLAC__bool avx;
+	FLAC__bool avx2;
+	FLAC__bool fma;
+} FLAC__CPUInfo_x86;
+
+typedef struct {
+	FLAC__bool arch_3_00;
+	FLAC__bool arch_2_07;
+} FLAC__CPUInfo_ppc;
+
+typedef struct {
+	FLAC__bool use_asm;
+	FLAC__CPUInfo_Type type;
+	FLAC__CPUInfo_x86 x86;
+	FLAC__CPUInfo_ppc ppc;
+} FLAC__CPUInfo;
+
+void FLAC__cpu_info(FLAC__CPUInfo *info);
+
+FLAC__uint32 FLAC__cpu_have_cpuid_asm_ia32(void);
+
+void         FLAC__cpu_info_asm_ia32(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/crc.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/crc.h
new file mode 100644
index 00000000..8c8fcd4c
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/crc.h
@@ -0,0 +1,60 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__CRC_H
+#define FLAC__PRIVATE__CRC_H
+
+#include "FLAC/ordinals.h"
+
+/* 8 bit CRC generator, MSB shifted first
+** polynomial = x^8 + x^2 + x^1 + x^0
+** init = 0
+*/
+FLAC__uint8 FLAC__crc8(const FLAC__byte *data, uint32_t len);
+
+/* 16 bit CRC generator, MSB shifted first
+** polynomial = x^16 + x^15 + x^2 + x^0
+** init = 0
+*/
+extern FLAC__uint16 const FLAC__crc16_table[8][256];
+
+#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[0][((crc)>>8) ^ (data)])
+/* this alternate may be faster on some systems/compilers */
+#if 0
+#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) ^ FLAC__crc16_table[0][((crc)>>8) ^ (data)]) & 0xffff)
+#endif
+
+FLAC__uint16 FLAC__crc16(const FLAC__byte *data, uint32_t len);
+FLAC__uint16 FLAC__crc16_update_words32(const FLAC__uint32 *words, uint32_t len, FLAC__uint16 crc);
+FLAC__uint16 FLAC__crc16_update_words64(const FLAC__uint64 *words, uint32_t len, FLAC__uint16 crc);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/fixed.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/fixed.h
new file mode 100644
index 00000000..aa742cac
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/fixed.h
@@ -0,0 +1,115 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__FIXED_H
+#define FLAC__PRIVATE__FIXED_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "private/cpu.h"
+#include "private/float.h"
+#include "FLAC/format.h"
+
+/*
+ *	FLAC__fixed_compute_best_predictor()
+ *	--------------------------------------------------------------------
+ *	Compute the best fixed predictor and the expected bits-per-sample
+ *  of the residual signal for each order.  The _wide() version uses
+ *  64-bit integers which is statistically necessary when bits-per-
+ *  sample + log2(blocksize) > 30
+ *
+ *	IN data[0,data_len-1]
+ *	IN data_len
+ *	OUT residual_bits_per_sample[0,FLAC__MAX_FIXED_ORDER]
+ */
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_33bit(const FLAC__int64 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+# ifndef FLAC__NO_ASM
+#  if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#   ifdef FLAC__SSE2_SUPPORTED
+uint32_t FLAC__fixed_compute_best_predictor_intrin_sse2(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]);
+uint32_t FLAC__fixed_compute_best_predictor_wide_intrin_sse2(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]);
+#   endif
+#   ifdef FLAC__SSSE3_SUPPORTED
+uint32_t FLAC__fixed_compute_best_predictor_intrin_ssse3(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_wide_intrin_ssse3(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]);
+#   endif
+#  endif
+#  if defined FLAC__CPU_IA32 && defined FLAC__HAS_NASM
+uint32_t FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+#  endif
+# endif
+#else
+uint32_t FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_33bit(const FLAC__int64 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+#endif
+
+/*
+ *	FLAC__fixed_compute_residual()
+ *	--------------------------------------------------------------------
+ *	Compute the residual signal obtained from sutracting the predicted
+ *	signal from the original.
+ *
+ *	IN data[-order,data_len-1]        original signal (NOTE THE INDICES!)
+ *	IN data_len                       length of original signal
+ *	IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
+ *	OUT residual[0,data_len-1]        residual signal
+ */
+void FLAC__fixed_compute_residual(const FLAC__int32 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[]);
+void FLAC__fixed_compute_residual_wide(const FLAC__int32 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[]);
+void FLAC__fixed_compute_residual_wide_33bit(const FLAC__int64 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[]);
+
+/*
+ *	FLAC__fixed_restore_signal()
+ *	--------------------------------------------------------------------
+ *	Restore the original signal by summing the residual and the
+ *	predictor.
+ *
+ *	IN residual[0,data_len-1]         residual signal
+ *	IN data_len                       length of original signal
+ *	IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
+ *	*** IMPORTANT: the caller must pass in the historical samples:
+ *	IN  data[-order,-1]               previously-reconstructed historical samples
+ *	OUT data[0,data_len-1]            original signal
+ */
+void FLAC__fixed_restore_signal(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int32 data[]);
+void FLAC__fixed_restore_signal_wide(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int32 data[]);
+void FLAC__fixed_restore_signal_wide_33bit(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int64 data[]);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/float.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/float.h
new file mode 100644
index 00000000..096db7d2
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/float.h
@@ -0,0 +1,95 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__FLOAT_H
+#define FLAC__PRIVATE__FLOAT_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "FLAC/ordinals.h"
+
+/*
+ * All the code in libFLAC that uses float and double
+ * should be protected by checks of the macro
+ * FLAC__INTEGER_ONLY_LIBRARY.
+ *
+ */
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+/*
+ * FLAC__real is the basic floating point type used in LPC analysis.
+ *
+ * WATCHOUT: changing FLAC__real will change the signatures of many
+ * functions that have assembly language equivalents and break them.
+ */
+typedef float FLAC__real;
+#else
+/*
+ * The convention for FLAC__fixedpoint is to use the upper 16 bits
+ * for the integer part and lower 16 bits for the fractional part.
+ */
+typedef FLAC__int32 FLAC__fixedpoint;
+extern const FLAC__fixedpoint FLAC__FP_ZERO;
+extern const FLAC__fixedpoint FLAC__FP_ONE_HALF;
+extern const FLAC__fixedpoint FLAC__FP_ONE;
+extern const FLAC__fixedpoint FLAC__FP_LN2;
+extern const FLAC__fixedpoint FLAC__FP_E;
+
+#define FLAC__fixedpoint_trunc(x) ((x)>>16)
+
+#define FLAC__fixedpoint_mul(x, y) ( (FLAC__fixedpoint) ( ((FLAC__int64)(x)*(FLAC__int64)(y)) >> 16 ) )
+
+#define FLAC__fixedpoint_div(x, y) ( (FLAC__fixedpoint) ( ( ((FLAC__int64)(x)<<32) / (FLAC__int64)(y) ) >> 16 ) )
+
+/*
+ *	FLAC__fixedpoint_log2()
+ *	--------------------------------------------------------------------
+ *	Returns the base-2 logarithm of the fixed-point number 'x' using an
+ *	algorithm by Knuth for x >= 1.0
+ *
+ *	'fracbits' is the number of fractional bits of 'x'.  'fracbits' must
+ *	be < 32 and evenly divisible by 4 (0 is OK but not very precise).
+ *
+ *	'precision' roughly limits the number of iterations that are done;
+ *	use (uint32_t)(-1) for maximum precision.
+ *
+ *	If 'x' is less than one -- that is, x < (1<<fracbits) -- then this
+ *	function will punt and return 0.
+ *
+ *	The return value will also have 'fracbits' fractional bits.
+ */
+FLAC__uint32 FLAC__fixedpoint_log2(FLAC__uint32 x, uint32_t fracbits, uint32_t precision);
+
+#endif
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/format.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/format.h
new file mode 100644
index 00000000..bb298377
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/format.h
@@ -0,0 +1,45 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__FORMAT_H
+#define FLAC__PRIVATE__FORMAT_H
+
+#include "FLAC/format.h"
+
+uint32_t FLAC__format_get_max_rice_partition_order(uint32_t blocksize, uint32_t predictor_order);
+uint32_t FLAC__format_get_max_rice_partition_order_from_blocksize(uint32_t blocksize);
+uint32_t FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(uint32_t limit, uint32_t blocksize, uint32_t predictor_order);
+void FLAC__format_entropy_coding_method_partitioned_rice_contents_init(FLAC__EntropyCodingMethod_PartitionedRiceContents *object);
+void FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(FLAC__EntropyCodingMethod_PartitionedRiceContents *object);
+FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(FLAC__EntropyCodingMethod_PartitionedRiceContents *object, uint32_t max_partition_order);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/lpc.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/lpc.h
new file mode 100644
index 00000000..5212b35e
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/lpc.h
@@ -0,0 +1,257 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__LPC_H
+#define FLAC__PRIVATE__LPC_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "private/cpu.h"
+#include "private/float.h"
+#include "FLAC/format.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+/*
+ *	FLAC__lpc_window_data()
+ *	--------------------------------------------------------------------
+ *	Applies the given window to the data.
+ *  OPT: asm implementation
+ *
+ *	IN in[0,data_len-1]
+ *	IN window[0,data_len-1]
+ *	OUT out[0,lag-1]
+ *	IN data_len
+ */
+void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len);
+void FLAC__lpc_window_data_wide(const FLAC__int64 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len);
+void FLAC__lpc_window_data_partial(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len, uint32_t part_size, uint32_t data_shift);
+void FLAC__lpc_window_data_partial_wide(const FLAC__int64 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len, uint32_t part_size, uint32_t data_shift);
+
+/*
+ *	FLAC__lpc_compute_autocorrelation()
+ *	--------------------------------------------------------------------
+ *	Compute the autocorrelation for lags between 0 and lag-1.
+ *	Assumes data[] outside of [0,data_len-1] == 0.
+ *	Asserts that lag > 0.
+ *
+ *	IN data[0,data_len-1]
+ *	IN data_len
+ *	IN 0 < lag <= data_len
+ *	OUT autoc[0,lag-1]
+ */
+void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+#ifndef FLAC__NO_ASM
+#  if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#    ifdef FLAC__SSE2_SUPPORTED
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+#    endif
+#  endif
+#  if defined FLAC__CPU_X86_64 && FLAC__HAS_X86INTRIN
+#    ifdef FLAC__FMA_SUPPORTED
+void FLAC__lpc_compute_autocorrelation_intrin_fma_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_fma_lag_12(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_fma_lag_16(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+#    endif
+#  endif
+#if defined(FLAC__CPU_PPC64) && defined(FLAC__USE_VSX)
+#ifdef FLAC__HAS_TARGET_POWER9
+void FLAC__lpc_compute_autocorrelation_intrin_power9_vsx_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_power9_vsx_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_power9_vsx_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+#endif
+#ifdef FLAC__HAS_TARGET_POWER8
+void FLAC__lpc_compute_autocorrelation_intrin_power8_vsx_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_power8_vsx_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_power8_vsx_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+#endif
+#endif
+#if defined FLAC__CPU_ARM64 && FLAC__HAS_NEONINTRIN && FLAC__HAS_A64NEONINTRIN
+void FLAC__lpc_compute_autocorrelation_intrin_neon_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_neon_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_neon_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+#endif
+#endif /* FLAC__NO_ASM */
+
+/*
+ *	FLAC__lpc_compute_lp_coefficients()
+ *	--------------------------------------------------------------------
+ *	Computes LP coefficients for orders 1..max_order.
+ *	Do not call if autoc[0] == 0.0.  This means the signal is zero
+ *	and there is no point in calculating a predictor.
+ *
+ *	IN autoc[0,max_order]                      autocorrelation values
+ *	IN 0 < max_order <= FLAC__MAX_LPC_ORDER    max LP order to compute
+ *	OUT lp_coeff[0,max_order-1][0,max_order-1] LP coefficients for each order
+ *	*** IMPORTANT:
+ *	*** lp_coeff[0,max_order-1][max_order,FLAC__MAX_LPC_ORDER-1] are untouched
+ *	OUT error[0,max_order-1]                   error for each order (more
+ *	                                           specifically, the variance of
+ *	                                           the error signal times # of
+ *	                                           samples in the signal)
+ *
+ *	Example: if max_order is 9, the LP coefficients for order 9 will be
+ *	         in lp_coeff[8][0,8], the LP coefficients for order 8 will be
+ *			 in lp_coeff[7][0,7], etc.
+ */
+void FLAC__lpc_compute_lp_coefficients(const double autoc[], uint32_t *max_order, FLAC__real lp_coeff[][FLAC__MAX_LPC_ORDER], double error[]);
+
+/*
+ *	FLAC__lpc_quantize_coefficients()
+ *	--------------------------------------------------------------------
+ *	Quantizes the LP coefficients.  NOTE: precision + bits_per_sample
+ *	must be less than 32 (sizeof(FLAC__int32)*8).
+ *
+ *	IN lp_coeff[0,order-1]    LP coefficients
+ *	IN order                  LP order
+ *	IN FLAC__MIN_QLP_COEFF_PRECISION < precision
+ *	                          desired precision (in bits, including sign
+ *	                          bit) of largest coefficient
+ *	OUT qlp_coeff[0,order-1]  quantized coefficients
+ *	OUT shift                 # of bits to shift right to get approximated
+ *	                          LP coefficients.  NOTE: could be negative.
+ *	RETURN 0 => quantization OK
+ *	       1 => coefficients require too much shifting for *shift to
+ *              fit in the LPC subframe header.  'shift' is unset.
+ *         2 => coefficients are all zero, which is bad.  'shift' is
+ *              unset.
+ */
+int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], uint32_t order, uint32_t precision, FLAC__int32 qlp_coeff[], int *shift);
+
+/*
+ *	FLAC__lpc_compute_residual_from_qlp_coefficients()
+ *	--------------------------------------------------------------------
+ *	Compute the residual signal obtained from sutracting the predicted
+ *	signal from the original.
+ *
+ *	IN data[-order,data_len-1] original signal (NOTE THE INDICES!)
+ *	IN data_len                length of original signal
+ *	IN qlp_coeff[0,order-1]    quantized LP coefficients
+ *	IN order > 0               LP order
+ *	IN lp_quantization         quantization of LP coefficients in bits
+ *	OUT residual[0,data_len-1] residual signal
+ */
+void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+FLAC__bool FLAC__lpc_compute_residual_from_qlp_coefficients_limit_residual(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+FLAC__bool FLAC__lpc_compute_residual_from_qlp_coefficients_limit_residual_33bit(const FLAC__int64 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#ifndef FLAC__NO_ASM
+#   ifdef FLAC__CPU_ARM64
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_neon(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_neon(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#   endif
+
+#  ifdef FLAC__CPU_IA32
+#    ifdef FLAC__HAS_NASM
+void FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_asm_ia32(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#    endif
+#  endif
+#  if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#    ifdef FLAC__SSE2_SUPPORTED
+void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#    endif
+#    ifdef FLAC__SSE4_1_SUPPORTED
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#    endif
+#    ifdef FLAC__AVX2_SUPPORTED
+void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#    endif
+#  endif
+#endif
+
+#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
+
+uint32_t FLAC__lpc_max_prediction_before_shift_bps(uint32_t subframe_bps, const FLAC__int32 qlp_coeff[], uint32_t order);
+uint32_t FLAC__lpc_max_residual_bps(uint32_t subframe_bps, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization);
+
+/*
+ *	FLAC__lpc_restore_signal()
+ *	--------------------------------------------------------------------
+ *	Restore the original signal by summing the residual and the
+ *	predictor.
+ *
+ *	IN residual[0,data_len-1]  residual signal
+ *	IN data_len                length of original signal
+ *	IN qlp_coeff[0,order-1]    quantized LP coefficients
+ *	IN order > 0               LP order
+ *	IN lp_quantization         quantization of LP coefficients in bits
+ *	*** IMPORTANT: the caller must pass in the historical samples:
+ *	IN  data[-order,-1]        previously-reconstructed historical samples
+ *	OUT data[0,data_len-1]     original signal
+ */
+void FLAC__lpc_restore_signal(const FLAC__int32 residual[], uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 data[]);
+void FLAC__lpc_restore_signal_wide(const FLAC__int32 residual[], uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 data[]);
+void FLAC__lpc_restore_signal_wide_33bit(const FLAC__int32 residual[], uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int64 data[]);
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+/*
+ *	FLAC__lpc_compute_expected_bits_per_residual_sample()
+ *	--------------------------------------------------------------------
+ *	Compute the expected number of bits per residual signal sample
+ *	based on the LP error (which is related to the residual variance).
+ *
+ *	IN lpc_error >= 0.0   error returned from calculating LP coefficients
+ *	IN total_samples > 0  # of samples in residual signal
+ *	RETURN                expected bits per sample
+ */
+double FLAC__lpc_compute_expected_bits_per_residual_sample(double lpc_error, uint32_t total_samples);
+double FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(double lpc_error, double error_scale);
+
+/*
+ *	FLAC__lpc_compute_best_order()
+ *	--------------------------------------------------------------------
+ *	Compute the best order from the array of signal errors returned
+ *	during coefficient computation.
+ *
+ *	IN lpc_error[0,max_order-1] >= 0.0  error returned from calculating LP coefficients
+ *	IN max_order > 0                    max LP order
+ *	IN total_samples > 0                # of samples in residual signal
+ *	IN overhead_bits_per_order          # of bits overhead for each increased LP order
+ *	                                    (includes warmup sample size and quantized LP coefficient)
+ *	RETURN [1,max_order]                best order
+ */
+uint32_t FLAC__lpc_compute_best_order(const double lpc_error[], uint32_t max_order, uint32_t total_samples, uint32_t overhead_bits_per_order);
+
+#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/macros.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/macros.h
new file mode 100644
index 00000000..ee0d997b
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/macros.h
@@ -0,0 +1,74 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2012-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__MACROS_H
+#define FLAC__PRIVATE__MACROS_H
+
+#if defined(__GNUC__) && (__GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 3))
+
+#define flac_max(a,b) \
+	({ __typeof__ (a) _a = (a); \
+	__typeof__ (b) _b = (b); \
+	_a > _b ? _a : _b; })
+
+#define MIN_PASTE(A,B) A##B
+#define MIN_IMPL(A,B,L) ({ \
+	__typeof__(A) MIN_PASTE(__a,L) = (A); \
+	__typeof__(B) MIN_PASTE(__b,L) = (B); \
+	MIN_PASTE(__a,L) < MIN_PASTE(__b,L) ? MIN_PASTE(__a,L) : MIN_PASTE(__b,L); \
+	})
+
+#define flac_min(A,B) MIN_IMPL(A,B,__COUNTER__)
+
+/* Whatever other unix that has sys/param.h */
+#elif defined(HAVE_SYS_PARAM_H)
+#include <sys/param.h>
+#if defined(MIN) && defined(MAX)
+#define flac_max(a,b) MAX(a,b)
+#define flac_min(a,b) MIN(a,b)
+#endif
+
+/* Windows VS has them in stdlib.h.. XXX:Untested */
+#elif defined(_MSC_VER)
+#include <stdlib.h>
+#define flac_max(a,b) __max(a,b)
+#define flac_min(a,b) __min(a,b)
+#endif
+
+#ifndef flac_min
+#define flac_min(x,y)	((x) <= (y) ? (x) : (y))
+#endif
+
+#ifndef flac_max
+#define flac_max(x,y)	((x) >= (y) ? (x) : (y))
+#endif
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/md5.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/md5.h
new file mode 100644
index 00000000..f9d79c3e
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/md5.h
@@ -0,0 +1,50 @@
+#ifndef FLAC__PRIVATE__MD5_H
+#define FLAC__PRIVATE__MD5_H
+
+/*
+ * This is the header file for the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest.  This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ *
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ *
+ * Changed so as no longer to depend on Colin Plumb's `usual.h'
+ * header definitions; now uses stuff from dpkg's config.h
+ *  - Ian Jackson <ijackson@nyx.cs.du.edu>.
+ * Still in the public domain.
+ *
+ * Josh Coalson: made some changes to integrate with libFLAC.
+ * Still in the public domain, with no warranty.
+ */
+
+#include "FLAC/ordinals.h"
+
+typedef union {
+	FLAC__byte *p8;
+	FLAC__int16 *p16;
+	FLAC__int32 *p32;
+} FLAC__multibyte;
+
+typedef struct {
+	FLAC__uint32 in[16];
+	FLAC__uint32 buf[4];
+	FLAC__uint32 bytes[2];
+	FLAC__multibyte internal_buf;
+	size_t capacity;
+} FLAC__MD5Context;
+
+void FLAC__MD5Init(FLAC__MD5Context *context);
+void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *context);
+
+FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], uint32_t channels, uint32_t samples, uint32_t bytes_per_sample);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/memory.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/memory.h
new file mode 100644
index 00000000..cba58ac9
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/memory.h
@@ -0,0 +1,59 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__MEMORY_H
+#define FLAC__PRIVATE__MEMORY_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h> /* for size_t */
+
+#include "private/float.h"
+#include "FLAC/ordinals.h" /* for FLAC__bool */
+
+/* Returns the unaligned address returned by malloc.
+ * Use free() on this address to deallocate.
+ */
+void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address);
+FLAC__bool FLAC__memory_alloc_aligned_int32_array(size_t elements, FLAC__int32 **unaligned_pointer, FLAC__int32 **aligned_pointer);
+FLAC__bool FLAC__memory_alloc_aligned_uint32_array(size_t elements, FLAC__uint32 **unaligned_pointer, FLAC__uint32 **aligned_pointer);
+FLAC__bool FLAC__memory_alloc_aligned_int64_array(size_t elements, FLAC__int64 **unaligned_pointer, FLAC__int64 **aligned_pointer);
+FLAC__bool FLAC__memory_alloc_aligned_uint64_array(size_t elements, FLAC__uint64 **unaligned_pointer, FLAC__uint64 **aligned_pointer);
+FLAC__bool FLAC__memory_alloc_aligned_unsigned_array(size_t elements, uint32_t **unaligned_pointer, uint32_t **aligned_pointer);
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+FLAC__bool FLAC__memory_alloc_aligned_real_array(size_t elements, FLAC__real **unaligned_pointer, FLAC__real **aligned_pointer);
+#endif
+void *safe_malloc_mul_2op_p(size_t size1, size_t size2);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/metadata.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/metadata.h
new file mode 100644
index 00000000..409b62cd
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/metadata.h
@@ -0,0 +1,46 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__METADATA_H
+#define FLAC__PRIVATE__METADATA_H
+
+#include "FLAC/metadata.h"
+
+/* WATCHOUT: all malloc()ed data in the block is free()ed; this may not
+ * be a consistent state (e.g. PICTURE) or equivalent to the initial
+ * state after FLAC__metadata_object_new()
+ */
+void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object);
+
+void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_decoder_aspect.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_decoder_aspect.h
new file mode 100644
index 00000000..2be979cc
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_decoder_aspect.h
@@ -0,0 +1,80 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__OGG_DECODER_ASPECT_H
+#define FLAC__PRIVATE__OGG_DECODER_ASPECT_H
+
+#include <ogg/ogg.h>
+
+#include "FLAC/ordinals.h"
+#include "FLAC/stream_decoder.h" /* for FLAC__StreamDecoderReadStatus */
+
+typedef struct FLAC__OggDecoderAspect {
+	/* these are storage for values that can be set through the API */
+	FLAC__bool use_first_serial_number;
+	long serial_number;
+
+	/* these are for internal state related to Ogg decoding */
+	ogg_stream_state stream_state;
+	ogg_sync_state sync_state;
+	uint32_t version_major, version_minor;
+	FLAC__bool need_serial_number;
+	FLAC__bool end_of_stream;
+	FLAC__bool have_working_page; /* only if true will the following vars be valid */
+	ogg_page working_page;
+	FLAC__bool have_working_packet; /* only if true will the following vars be valid */
+	ogg_packet working_packet; /* as we work through the packet we will move working_packet.packet forward and working_packet.bytes down */
+} FLAC__OggDecoderAspect;
+
+void FLAC__ogg_decoder_aspect_set_serial_number(FLAC__OggDecoderAspect *aspect, long value);
+void FLAC__ogg_decoder_aspect_set_defaults(FLAC__OggDecoderAspect *aspect);
+FLAC__bool FLAC__ogg_decoder_aspect_init(FLAC__OggDecoderAspect *aspect);
+void FLAC__ogg_decoder_aspect_finish(FLAC__OggDecoderAspect *aspect);
+void FLAC__ogg_decoder_aspect_flush(FLAC__OggDecoderAspect *aspect);
+void FLAC__ogg_decoder_aspect_reset(FLAC__OggDecoderAspect *aspect);
+
+typedef enum {
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK = 0,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR
+} FLAC__OggDecoderAspectReadStatus;
+
+typedef FLAC__OggDecoderAspectReadStatus (*FLAC__OggDecoderAspectReadCallbackProxy)(const void *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
+
+FLAC__OggDecoderAspectReadStatus FLAC__ogg_decoder_aspect_read_callback_wrapper(FLAC__OggDecoderAspect *aspect, FLAC__byte buffer[], size_t *bytes, FLAC__OggDecoderAspectReadCallbackProxy read_callback, const FLAC__StreamDecoder *decoder, void *client_data);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_encoder_aspect.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_encoder_aspect.h
new file mode 100644
index 00000000..35a1ddf5
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_encoder_aspect.h
@@ -0,0 +1,63 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__OGG_ENCODER_ASPECT_H
+#define FLAC__PRIVATE__OGG_ENCODER_ASPECT_H
+
+#include <ogg/ogg.h>
+
+#include "FLAC/ordinals.h"
+#include "FLAC/stream_encoder.h" /* for FLAC__StreamEncoderWriteStatus */
+
+typedef struct FLAC__OggEncoderAspect {
+	/* these are storage for values that can be set through the API */
+	long serial_number;
+	uint32_t num_metadata;
+
+	/* these are for internal state related to Ogg encoding */
+	ogg_stream_state stream_state;
+	ogg_page page;
+	FLAC__bool seen_magic; /* true if we've seen the fLaC magic in the write callback yet */
+	FLAC__bool is_first_packet;
+	FLAC__uint64 samples_written;
+} FLAC__OggEncoderAspect;
+
+void FLAC__ogg_encoder_aspect_set_serial_number(FLAC__OggEncoderAspect *aspect, long value);
+FLAC__bool FLAC__ogg_encoder_aspect_set_num_metadata(FLAC__OggEncoderAspect *aspect, uint32_t value);
+void FLAC__ogg_encoder_aspect_set_defaults(FLAC__OggEncoderAspect *aspect);
+FLAC__bool FLAC__ogg_encoder_aspect_init(FLAC__OggEncoderAspect *aspect);
+void FLAC__ogg_encoder_aspect_finish(FLAC__OggEncoderAspect *aspect);
+
+typedef FLAC__StreamEncoderWriteStatus (*FLAC__OggEncoderAspectWriteCallbackProxy)(const void *encoder, const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame, void *client_data);
+
+FLAC__StreamEncoderWriteStatus FLAC__ogg_encoder_aspect_write_callback_wrapper(FLAC__OggEncoderAspect *aspect, const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame, FLAC__bool is_last_block, FLAC__OggEncoderAspectWriteCallbackProxy write_callback, void *encoder, void *client_data);
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_helper.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_helper.h
new file mode 100644
index 00000000..3e15acca
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_helper.h
@@ -0,0 +1,44 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__OGG_HELPER_H
+#define FLAC__PRIVATE__OGG_HELPER_H
+
+#include <ogg/ogg.h>
+#include "FLAC/stream_encoder.h" /* for FLAC__StreamEncoder */
+
+void simple_ogg_page__init(ogg_page *page);
+void simple_ogg_page__clear(ogg_page *page);
+FLAC__bool simple_ogg_page__get_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderReadCallback read_callback, void *client_data);
+FLAC__bool simple_ogg_page__set_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderWriteCallback write_callback, void *client_data);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_mapping.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_mapping.h
new file mode 100644
index 00000000..224f7dc2
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/ogg_mapping.h
@@ -0,0 +1,64 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__OGG_MAPPING_H
+#define FLAC__PRIVATE__OGG_MAPPING_H
+
+#include "FLAC/ordinals.h"
+
+/** The length of the packet type field in bytes. */
+#define FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH (1u)
+
+extern const uint32_t FLAC__OGG_MAPPING_PACKET_TYPE_LEN; /* = 8 bits */
+
+extern const FLAC__byte FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE; /* = 0x7f */
+
+/** The length of the 'FLAC' magic in bytes. */
+#define FLAC__OGG_MAPPING_MAGIC_LENGTH (4u)
+
+extern const FLAC__byte * const FLAC__OGG_MAPPING_MAGIC; /* = "FLAC" */
+
+extern const uint32_t FLAC__OGG_MAPPING_VERSION_MAJOR_LEN; /* = 8 bits */
+extern const uint32_t FLAC__OGG_MAPPING_VERSION_MINOR_LEN; /* = 8 bits */
+
+/** The length of the Ogg FLAC mapping major version number in bytes. */
+#define FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH (1u)
+
+/** The length of the Ogg FLAC mapping minor version number in bytes. */
+#define FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH (1u)
+
+extern const uint32_t FLAC__OGG_MAPPING_NUM_HEADERS_LEN; /* = 16 bits */
+
+/** The length of the #-of-header-packets number bytes. */
+#define FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH (2u)
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/stream_encoder.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/stream_encoder.h
new file mode 100644
index 00000000..1d22937e
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/stream_encoder.h
@@ -0,0 +1,67 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__STREAM_ENCODER_H
+#define FLAC__PRIVATE__STREAM_ENCODER_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+/*
+ * This is used to avoid overflow with unusual signals in 32-bit
+ * accumulator in the *precompute_partition_info_sums_* functions.
+ */
+#define FLAC__MAX_EXTRA_RESIDUAL_BPS 4
+
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
+#include "private/cpu.h"
+#include "FLAC/format.h"
+
+#ifdef FLAC__SSE2_SUPPORTED
+extern void FLAC__precompute_partition_info_sums_intrin_sse2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
+			uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps);
+#endif
+
+#ifdef FLAC__SSSE3_SUPPORTED
+extern void FLAC__precompute_partition_info_sums_intrin_ssse3(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
+			uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps);
+#endif
+
+#ifdef FLAC__AVX2_SUPPORTED
+extern void FLAC__precompute_partition_info_sums_intrin_avx2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
+			uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps);
+#endif
+
+#endif
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/stream_encoder_framing.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/stream_encoder_framing.h
new file mode 100644
index 00000000..2799c698
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/stream_encoder_framing.h
@@ -0,0 +1,46 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__STREAM_ENCODER_FRAMING_H
+#define FLAC__PRIVATE__STREAM_ENCODER_FRAMING_H
+
+#include "FLAC/format.h"
+#include "bitwriter.h"
+
+FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetadata *metadata, FLAC__BitWriter *bw);
+FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__BitWriter *bw);
+FLAC__bool FLAC__subframe_add_constant(const FLAC__Subframe_Constant *subframe, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw);
+FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, uint32_t residual_samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw);
+FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, uint32_t residual_samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw);
+FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe, uint32_t samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/window.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/window.h
new file mode 100644
index 00000000..4aaaaea6
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/private/window.h
@@ -0,0 +1,74 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2006-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__WINDOW_H
+#define FLAC__PRIVATE__WINDOW_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "private/float.h"
+#include "FLAC/format.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+/*
+ *	FLAC__window_*()
+ *	--------------------------------------------------------------------
+ *	Calculates window coefficients according to different apodization
+ *	functions.
+ *
+ *	OUT window[0,L-1]
+ *	IN L (number of points in window)
+ */
+void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev); /* 0.0 < stddev <= 0.5 */
+void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p);
+void FLAC__window_partial_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end);
+void FLAC__window_punchout_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end);
+void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L);
+
+#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/protected/all.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/protected/all.h
new file mode 100644
index 00000000..ad302308
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/protected/all.h
@@ -0,0 +1,39 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PROTECTED__ALL_H
+#define FLAC__PROTECTED__ALL_H
+
+#include "stream_decoder.h"
+#include "stream_encoder.h"
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/protected/stream_decoder.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/protected/stream_decoder.h
new file mode 100644
index 00000000..f1c5d0eb
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/protected/stream_decoder.h
@@ -0,0 +1,60 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PROTECTED__STREAM_DECODER_H
+#define FLAC__PROTECTED__STREAM_DECODER_H
+
+#include "FLAC/stream_decoder.h"
+#if FLAC__HAS_OGG
+#include "private/ogg_decoder_aspect.h"
+#endif
+
+typedef struct FLAC__StreamDecoderProtected {
+	FLAC__StreamDecoderState state;
+	FLAC__StreamDecoderInitStatus initstate;
+	uint32_t channels;
+	FLAC__ChannelAssignment channel_assignment;
+	uint32_t bits_per_sample;
+	uint32_t sample_rate; /* in Hz */
+	uint32_t blocksize; /* in samples (per channel) */
+	FLAC__bool md5_checking; /* if true, generate MD5 signature of decoded data and compare against signature in the STREAMINFO metadata block */
+#if FLAC__HAS_OGG
+	FLAC__OggDecoderAspect ogg_decoder_aspect;
+#endif
+} FLAC__StreamDecoderProtected;
+
+/*
+ * Return the number of input bytes consumed
+ */
+uint32_t FLAC__stream_decoder_get_input_bytes_unconsumed(const FLAC__StreamDecoder *decoder);
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/protected/stream_encoder.h b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/protected/stream_encoder.h
new file mode 100644
index 00000000..3e045583
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/include/protected/stream_encoder.h
@@ -0,0 +1,124 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PROTECTED__STREAM_ENCODER_H
+#define FLAC__PROTECTED__STREAM_ENCODER_H
+
+#include "FLAC/stream_encoder.h"
+#if FLAC__HAS_OGG
+#include "private/ogg_encoder_aspect.h"
+#endif
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+#include "private/float.h"
+
+#define FLAC__MAX_APODIZATION_FUNCTIONS 32
+
+typedef enum {
+	FLAC__APODIZATION_BARTLETT,
+	FLAC__APODIZATION_BARTLETT_HANN,
+	FLAC__APODIZATION_BLACKMAN,
+	FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE,
+	FLAC__APODIZATION_CONNES,
+	FLAC__APODIZATION_FLATTOP,
+	FLAC__APODIZATION_GAUSS,
+	FLAC__APODIZATION_HAMMING,
+	FLAC__APODIZATION_HANN,
+	FLAC__APODIZATION_KAISER_BESSEL,
+	FLAC__APODIZATION_NUTTALL,
+	FLAC__APODIZATION_RECTANGLE,
+	FLAC__APODIZATION_TRIANGLE,
+	FLAC__APODIZATION_TUKEY,
+	FLAC__APODIZATION_PARTIAL_TUKEY,
+	FLAC__APODIZATION_PUNCHOUT_TUKEY,
+	FLAC__APODIZATION_SUBDIVIDE_TUKEY,
+	FLAC__APODIZATION_WELCH
+} FLAC__ApodizationFunction;
+
+typedef struct {
+	FLAC__ApodizationFunction type;
+	union {
+		struct {
+			FLAC__real stddev;
+		} gauss;
+		struct {
+			FLAC__real p;
+		} tukey;
+		struct {
+			FLAC__real p;
+			FLAC__real start;
+			FLAC__real end;
+		} multiple_tukey;
+		struct {
+			FLAC__real p;
+			FLAC__int32 parts;
+		} subdivide_tukey;
+	} parameters;
+} FLAC__ApodizationSpecification;
+
+#endif // #ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+typedef struct FLAC__StreamEncoderProtected {
+	FLAC__StreamEncoderState state;
+	FLAC__bool verify;
+	FLAC__bool streamable_subset;
+	FLAC__bool do_md5;
+	FLAC__bool do_mid_side_stereo;
+	FLAC__bool loose_mid_side_stereo;
+	uint32_t channels;
+	uint32_t bits_per_sample;
+	uint32_t sample_rate;
+	uint32_t blocksize;
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	uint32_t num_apodizations;
+	FLAC__ApodizationSpecification apodizations[FLAC__MAX_APODIZATION_FUNCTIONS];
+#endif
+	uint32_t max_lpc_order;
+	uint32_t qlp_coeff_precision;
+	FLAC__bool do_qlp_coeff_prec_search;
+	FLAC__bool do_exhaustive_model_search;
+	FLAC__bool do_escape_coding;
+	uint32_t min_residual_partition_order;
+	uint32_t max_residual_partition_order;
+	uint32_t rice_parameter_search_dist;
+	FLAC__uint64 total_samples_estimate;
+	FLAC__bool limit_min_bitrate;
+	FLAC__StreamMetadata **metadata;
+	uint32_t num_metadata_blocks;
+	FLAC__uint64 streaminfo_offset, seektable_offset, audio_offset;
+#if FLAC__HAS_OGG
+	FLAC__OggEncoderAspect ogg_encoder_aspect;
+#endif
+} FLAC__StreamEncoderProtected;
+
+#endif
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc.c
new file mode 100644
index 00000000..a090a877
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc.c
@@ -0,0 +1,1611 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <math.h>
+#include <stdlib.h>
+
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+#include "share/compat.h"
+#include "private/bitmath.h"
+#include "private/lpc.h"
+#include "private/macros.h"
+
+#if !defined(NDEBUG) || defined FLAC__OVERFLOW_DETECT || defined FLAC__OVERFLOW_DETECT_VERBOSE
+#include <stdio.h>
+#endif
+
+/* OPT: #undef'ing this may improve the speed on some architectures */
+#define FLAC__LPC_UNROLLED_FILTER_LOOPS
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+#if defined(_MSC_VER) && (_MSC_VER < 1800)
+#include <float.h>
+static inline long int lround(double x) {
+	return (long)(x + _copysign(0.5, x));
+}
+#elif !defined(HAVE_LROUND) && defined(__GNUC__)
+static inline long int lround(double x) {
+	return (long)(x + __builtin_copysign(0.5, x));
+}
+/* If this fails, we are in the presence of a mid 90's compiler, move along... */
+#endif
+
+void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len)
+{
+	uint32_t i;
+	for(i = 0; i < data_len; i++)
+		out[i] = in[i] * window[i];
+}
+
+void FLAC__lpc_window_data_wide(const FLAC__int64 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len)
+{
+	uint32_t i;
+	for(i = 0; i < data_len; i++)
+		out[i] = in[i] * window[i];
+}
+
+void FLAC__lpc_window_data_partial(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len, uint32_t part_size, uint32_t data_shift)
+{
+	uint32_t i, j;
+	if((part_size + data_shift) < data_len){
+		for(i = 0; i < part_size; i++)
+			out[i] = in[data_shift+i] * window[i];
+		i = flac_min(i,data_len - part_size - data_shift);
+		for(j = data_len - part_size; j < data_len; i++, j++)
+			out[i] = in[data_shift+i] * window[j];
+		if(i < data_len)
+			out[i] = 0.0f;
+	}
+}
+
+void FLAC__lpc_window_data_partial_wide(const FLAC__int64 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len, uint32_t part_size, uint32_t data_shift)
+{
+	uint32_t i, j;
+	if((part_size + data_shift) < data_len){
+		for(i = 0; i < part_size; i++)
+			out[i] = in[data_shift+i] * window[i];
+		i = flac_min(i,data_len - part_size - data_shift);
+		for(j = data_len - part_size; j < data_len; i++, j++)
+			out[i] = in[data_shift+i] * window[j];
+		if(i < data_len)
+			out[i] = 0.0f;
+	}
+}
+
+void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+	/* a readable, but slower, version */
+#if 0
+	double d;
+	uint32_t i;
+
+	FLAC__ASSERT(lag > 0);
+	FLAC__ASSERT(lag <= data_len);
+
+	/*
+	 * Technically we should subtract the mean first like so:
+	 *   for(i = 0; i < data_len; i++)
+	 *     data[i] -= mean;
+	 * but it appears not to make enough of a difference to matter, and
+	 * most signals are already closely centered around zero
+	 */
+	while(lag--) {
+		for(i = lag, d = 0.0; i < data_len; i++)
+			d += data[i] * (double)data[i - lag];
+		autoc[lag] = d;
+	}
+#endif
+
+	/*
+	 * this version tends to run faster because of better data locality
+	 * ('data_len' is usually much larger than 'lag')
+	 */
+	double d;
+	uint32_t sample, coeff;
+	const uint32_t limit = data_len - lag;
+
+	FLAC__ASSERT(lag > 0);
+	FLAC__ASSERT(lag <= data_len);
+
+	for(coeff = 0; coeff < lag; coeff++)
+		autoc[coeff] = 0.0;
+	for(sample = 0; sample <= limit; sample++) {
+		d = data[sample];
+		for(coeff = 0; coeff < lag; coeff++)
+			autoc[coeff] += d * data[sample+coeff];
+	}
+	for(; sample < data_len; sample++) {
+		d = data[sample];
+		for(coeff = 0; coeff < data_len - sample; coeff++)
+			autoc[coeff] += d * data[sample+coeff];
+	}
+}
+
+void FLAC__lpc_compute_lp_coefficients(const double autoc[], uint32_t *max_order, FLAC__real lp_coeff[][FLAC__MAX_LPC_ORDER], double error[])
+{
+	uint32_t i, j;
+	double r, err, lpc[FLAC__MAX_LPC_ORDER];
+
+	FLAC__ASSERT(0 != max_order);
+	FLAC__ASSERT(0 < *max_order);
+	FLAC__ASSERT(*max_order <= FLAC__MAX_LPC_ORDER);
+	FLAC__ASSERT(autoc[0] != 0.0);
+
+	err = autoc[0];
+
+	for(i = 0; i < *max_order; i++) {
+		/* Sum up this iteration's reflection coefficient. */
+		r = -autoc[i+1];
+		for(j = 0; j < i; j++)
+			r -= lpc[j] * autoc[i-j];
+		r /= err;
+
+		/* Update LPC coefficients and total error. */
+		lpc[i]=r;
+		for(j = 0; j < (i>>1); j++) {
+			double tmp = lpc[j];
+			lpc[j] += r * lpc[i-1-j];
+			lpc[i-1-j] += r * tmp;
+		}
+		if(i & 1)
+			lpc[j] += lpc[j] * r;
+
+		err *= (1.0 - r * r);
+
+		/* save this order */
+		for(j = 0; j <= i; j++)
+			lp_coeff[i][j] = (FLAC__real)(-lpc[j]); /* negate FIR filter coeff to get predictor coeff */
+		error[i] = err;
+
+		/* see SF bug https://sourceforge.net/p/flac/bugs/234/ */
+		if(err == 0.0) {
+			*max_order = i+1;
+			return;
+		}
+	}
+}
+
+int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], uint32_t order, uint32_t precision, FLAC__int32 qlp_coeff[], int *shift)
+{
+	uint32_t i;
+	double cmax;
+	FLAC__int32 qmax, qmin;
+
+	FLAC__ASSERT(precision > 0);
+	FLAC__ASSERT(precision >= FLAC__MIN_QLP_COEFF_PRECISION);
+
+	/* drop one bit for the sign; from here on out we consider only |lp_coeff[i]| */
+	precision--;
+	qmax = 1 << precision;
+	qmin = -qmax;
+	qmax--;
+
+	/* calc cmax = max( |lp_coeff[i]| ) */
+	cmax = 0.0;
+	for(i = 0; i < order; i++) {
+		const double d = fabs(lp_coeff[i]);
+		if(d > cmax)
+			cmax = d;
+	}
+
+	if(cmax <= 0.0) {
+		/* => coefficients are all 0, which means our constant-detect didn't work */
+		return 2;
+	}
+	else {
+		const int max_shiftlimit = (1 << (FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN-1)) - 1;
+		const int min_shiftlimit = -max_shiftlimit - 1;
+		int log2cmax;
+
+		(void)frexp(cmax, &log2cmax);
+		log2cmax--;
+		*shift = (int)precision - log2cmax - 1;
+
+		if(*shift > max_shiftlimit)
+			*shift = max_shiftlimit;
+		else if(*shift < min_shiftlimit)
+			return 1;
+	}
+
+	if(*shift >= 0) {
+		double error = 0.0;
+		FLAC__int32 q;
+		for(i = 0; i < order; i++) {
+			error += lp_coeff[i] * (1 << *shift);
+			q = lround(error);
+
+#ifdef FLAC__OVERFLOW_DETECT
+			if(q > qmax+1) /* we expect q==qmax+1 occasionally due to rounding */
+				fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q>qmax %d>%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmax,*shift,cmax,precision+1,i,lp_coeff[i]);
+			else if(q < qmin)
+				fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q<qmin %d<%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmin,*shift,cmax,precision+1,i,lp_coeff[i]);
+#endif
+			if(q > qmax)
+				q = qmax;
+			else if(q < qmin)
+				q = qmin;
+			error -= q;
+			qlp_coeff[i] = q;
+		}
+	}
+	/* negative shift is very rare but due to design flaw, negative shift is
+	 * not allowed in the decoder, so it must be handled specially by scaling
+	 * down coeffs
+	 */
+	else {
+		const int nshift = -(*shift);
+		double error = 0.0;
+		FLAC__int32 q;
+#ifndef NDEBUG
+		fprintf(stderr,"FLAC__lpc_quantize_coefficients: negative shift=%d order=%u cmax=%f\n", *shift, order, cmax);
+#endif
+		for(i = 0; i < order; i++) {
+			error += lp_coeff[i] / (1 << nshift);
+			q = lround(error);
+#ifdef FLAC__OVERFLOW_DETECT
+			if(q > qmax+1) /* we expect q==qmax+1 occasionally due to rounding */
+				fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q>qmax %d>%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmax,*shift,cmax,precision+1,i,lp_coeff[i]);
+			else if(q < qmin)
+				fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q<qmin %d<%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmin,*shift,cmax,precision+1,i,lp_coeff[i]);
+#endif
+			if(q > qmax)
+				q = qmax;
+			else if(q < qmin)
+				q = qmin;
+			error -= q;
+			qlp_coeff[i] = q;
+		}
+		*shift = 0;
+	}
+
+	return 0;
+}
+
+#if defined(_MSC_VER)
+// silence MSVC warnings about __restrict modifier
+#pragma warning ( disable : 4028 )
+#endif
+
+void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 * flac_restrict data, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int32 * flac_restrict residual)
+#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
+{
+	FLAC__int64 sumo;
+	uint32_t i, j;
+	FLAC__int32 sum;
+	const FLAC__int32 *history;
+
+#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
+	fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
+	for(i=0;i<order;i++)
+		fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
+	fprintf(stderr,"\n");
+#endif
+	FLAC__ASSERT(order > 0);
+
+	for(i = 0; i < data_len; i++) {
+		sumo = 0;
+		sum = 0;
+		history = data;
+		for(j = 0; j < order; j++) {
+			sum += qlp_coeff[j] * (*(--history));
+			sumo += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*history);
+			if(sumo > 2147483647ll || sumo < -2147483648ll)
+				fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%" PRId64 "\n",i,j,qlp_coeff[j],*history,sumo);
+		}
+		*(residual++) = *(data++) - (sum >> lp_quantization);
+	}
+
+	/* Here's a slower but clearer version:
+	for(i = 0; i < data_len; i++) {
+		sum = 0;
+		for(j = 0; j < order; j++)
+			sum += qlp_coeff[j] * data[i-j-1];
+		residual[i] = data[i] - (sum >> lp_quantization);
+	}
+	*/
+}
+#else /* fully unrolled version for normal use */
+{
+	int i;
+	FLAC__int32 sum;
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	/*
+	 * We do unique versions up to 12th order since that's the subset limit.
+	 * Also they are roughly ordered to match frequency of occurrence to
+	 * minimize branching.
+	 */
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[11] * data[i-12];
+						sum += qlp_coeff[10] * data[i-11];
+						sum += qlp_coeff[9] * data[i-10];
+						sum += qlp_coeff[8] * data[i-9];
+						sum += qlp_coeff[7] * data[i-8];
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 11 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[10] * data[i-11];
+						sum += qlp_coeff[9] * data[i-10];
+						sum += qlp_coeff[8] * data[i-9];
+						sum += qlp_coeff[7] * data[i-8];
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[9] * data[i-10];
+						sum += qlp_coeff[8] * data[i-9];
+						sum += qlp_coeff[7] * data[i-8];
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 9 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[8] * data[i-9];
+						sum += qlp_coeff[7] * data[i-8];
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[7] * data[i-8];
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 7 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 5 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 3 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 1 */
+					for(i = 0; i < (int)data_len; i++)
+						residual[i] = data[i] - ((qlp_coeff[0] * data[i-1]) >> lp_quantization);
+				}
+			}
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * data[i-13];
+				         sum += qlp_coeff[11] * data[i-12];
+				         sum += qlp_coeff[10] * data[i-11];
+				         sum += qlp_coeff[ 9] * data[i-10];
+				         sum += qlp_coeff[ 8] * data[i- 9];
+				         sum += qlp_coeff[ 7] * data[i- 8];
+				         sum += qlp_coeff[ 6] * data[i- 7];
+				         sum += qlp_coeff[ 5] * data[i- 6];
+				         sum += qlp_coeff[ 4] * data[i- 5];
+				         sum += qlp_coeff[ 3] * data[i- 4];
+				         sum += qlp_coeff[ 2] * data[i- 3];
+				         sum += qlp_coeff[ 1] * data[i- 2];
+				         sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+}
+#endif
+
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 * flac_restrict data, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int32 * flac_restrict residual)
+#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
+{
+	uint32_t i, j;
+	FLAC__int64 sum;
+	const FLAC__int32 *history;
+
+#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
+	fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients_wide: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
+	for(i=0;i<order;i++)
+		fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
+	fprintf(stderr,"\n");
+#endif
+	FLAC__ASSERT(order > 0);
+
+	for(i = 0; i < data_len; i++) {
+		sum = 0;
+		history = data;
+		for(j = 0; j < order; j++)
+			sum += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*(--history));
+		if(FLAC__bitmath_silog2((FLAC__int64)(*data) - (sum >> lp_quantization)) > 32) {
+			fprintf(stderr,"FLAC__lpc_compute_residual_from_qlp_coefficients_wide: OVERFLOW, i=%u, data=%d, sum=%" PRId64 ", residual=%" PRId64 "\n", i, *data, (int64_t)(sum >> lp_quantization), ((FLAC__int64)(*data) - (sum >> lp_quantization)));
+			break;
+		}
+		*(residual++) = *(data++) - (FLAC__int32)(sum >> lp_quantization);
+	}
+}
+#else /* fully unrolled version for normal use */
+{
+	int i;
+	FLAC__int64 sum;
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	/*
+	 * We do unique versions up to 12th order since that's the subset limit.
+	 * Also they are roughly ordered to match frequency of occurrence to
+	 * minimize branching.
+	 */
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
+						sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+						sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 11 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+						sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 9 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 7 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 5 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 3 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						residual[i] = data[i] - (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 1 */
+					for(i = 0; i < (int)data_len; i++)
+						residual[i] = data[i] - ((qlp_coeff[0] * (FLAC__int64)data[i-1]) >> lp_quantization);
+				}
+			}
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
+				         sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
+				         sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+				         sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
+				         sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
+				         sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
+				         sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
+				         sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
+				         sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
+				         sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
+				         sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
+				         sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
+				         sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+}
+#endif
+
+FLAC__bool FLAC__lpc_compute_residual_from_qlp_coefficients_limit_residual(const FLAC__int32 * flac_restrict data, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int32 * flac_restrict residual)
+{
+	int i;
+	FLAC__int64 sum, residual_to_check;
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	for(i = 0; i < (int)data_len; i++) {
+		sum = 0;
+		switch(order) {
+			case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32]; /* Falls through. */
+			case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31]; /* Falls through. */
+			case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30]; /* Falls through. */
+			case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29]; /* Falls through. */
+			case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28]; /* Falls through. */
+			case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27]; /* Falls through. */
+			case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26]; /* Falls through. */
+			case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25]; /* Falls through. */
+			case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24]; /* Falls through. */
+			case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23]; /* Falls through. */
+			case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22]; /* Falls through. */
+			case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21]; /* Falls through. */
+			case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20]; /* Falls through. */
+			case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19]; /* Falls through. */
+			case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18]; /* Falls through. */
+			case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17]; /* Falls through. */
+			case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16]; /* Falls through. */
+			case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15]; /* Falls through. */
+			case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14]; /* Falls through. */
+			case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13]; /* Falls through. */
+			case 12: sum += qlp_coeff[11] * (FLAC__int64)data[i-12]; /* Falls through. */
+			case 11: sum += qlp_coeff[10] * (FLAC__int64)data[i-11]; /* Falls through. */
+			case 10: sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10]; /* Falls through. */
+			case  9: sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9]; /* Falls through. */
+			case  8: sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8]; /* Falls through. */
+			case  7: sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7]; /* Falls through. */
+			case  6: sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6]; /* Falls through. */
+			case  5: sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5]; /* Falls through. */
+			case  4: sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4]; /* Falls through. */
+			case  3: sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3]; /* Falls through. */
+			case  2: sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2]; /* Falls through. */
+			case  1: sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
+		}
+		residual_to_check = data[i] - (sum >> lp_quantization);
+		 /* residual must not be INT32_MIN because abs(INT32_MIN) is undefined */
+		if(residual_to_check <= INT32_MIN || residual_to_check > INT32_MAX)
+			return false;
+		else
+			residual[i] = residual_to_check;
+	}
+	return true;
+}
+
+FLAC__bool FLAC__lpc_compute_residual_from_qlp_coefficients_limit_residual_33bit(const FLAC__int64 * flac_restrict data, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int32 * flac_restrict residual)
+{
+	int i;
+	FLAC__int64 sum, residual_to_check;
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	for(i = 0; i < (int)data_len; i++) {
+		sum = 0;
+		switch(order) {
+			case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+			case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+			case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+			case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+			case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+			case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+			case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+			case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+			case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+			case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+			case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+			case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+			case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+			case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+			case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+			case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+			case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+			case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+			case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+			case 13: sum += qlp_coeff[12] * data[i-13]; /* Falls through. */
+			case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+			case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+			case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+			case  9: sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+			case  8: sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+			case  7: sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+			case  6: sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+			case  5: sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+			case  4: sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+			case  3: sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+			case  2: sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
+			case  1: sum += qlp_coeff[ 0] * data[i- 1];
+		}
+		residual_to_check = data[i] - (sum >> lp_quantization);
+		/* residual must not be INT32_MIN because abs(INT32_MIN) is undefined */
+		if(residual_to_check <= INT32_MIN || residual_to_check > INT32_MAX)
+			return false;
+		else
+			residual[i] = residual_to_check;
+	}
+	return true;
+}
+
+#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
+
+uint32_t FLAC__lpc_max_prediction_before_shift_bps(uint32_t subframe_bps, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order)
+{
+	/* This used to be subframe_bps + qlp_coeff_precision + FLAC__bitmath_ilog2(order)
+	 * but that treats both the samples as well as the predictor as unknown. The
+	 * predictor is known however, so taking the log2 of the sum of the absolute values
+	 * of all coefficients is a more accurate representation of the predictor */
+	FLAC__int32 abs_sum_of_qlp_coeff = 0;
+	for(uint32_t i = 0; i < order; i++)
+		abs_sum_of_qlp_coeff += abs(qlp_coeff[i]);
+	if(abs_sum_of_qlp_coeff == 0)
+		abs_sum_of_qlp_coeff = 1;
+	return subframe_bps + FLAC__bitmath_silog2(abs_sum_of_qlp_coeff);
+}
+
+
+uint32_t FLAC__lpc_max_residual_bps(uint32_t subframe_bps, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization)
+{
+	FLAC__int32 predictor_sum_bps = FLAC__lpc_max_prediction_before_shift_bps(subframe_bps, qlp_coeff, order) - lp_quantization;
+	if((int)subframe_bps > predictor_sum_bps)
+		return subframe_bps + 1;
+	else
+		return predictor_sum_bps + 1;
+}
+
+#ifdef FUZZING_BUILD_MODE_NO_SANITIZE_SIGNED_INTEGER_OVERFLOW
+/* The attribute below is to silence the undefined sanitizer of oss-fuzz.
+ * Because fuzzing feeds bogus predictors and residual samples to the
+ * decoder, having overflows in this section is unavoidable. Also,
+ * because the calculated values are audio path only, there is no
+ * potential for security problems */
+__attribute__((no_sanitize("signed-integer-overflow")))
+#endif
+void FLAC__lpc_restore_signal(const FLAC__int32 * flac_restrict residual, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int32 * flac_restrict data)
+#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
+{
+	FLAC__int64 sumo;
+	uint32_t i, j;
+	FLAC__int32 sum;
+	const FLAC__int32 *r = residual, *history;
+
+#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
+	fprintf(stderr,"FLAC__lpc_restore_signal: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
+	for(i=0;i<order;i++)
+		fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
+	fprintf(stderr,"\n");
+#endif
+	FLAC__ASSERT(order > 0);
+
+	for(i = 0; i < data_len; i++) {
+		sumo = 0;
+		sum = 0;
+		history = data;
+		for(j = 0; j < order; j++) {
+			sum += qlp_coeff[j] * (*(--history));
+			sumo += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*history);
+#ifdef FLAC__OVERFLOW_DETECT
+			if(sumo > 2147483647ll || sumo < -2147483648ll)
+				fprintf(stderr,"FLAC__lpc_restore_signal: OVERFLOW, i=%u, j=%u, c=%d, d=%d, sumo=%" PRId64 "\n",i,j,qlp_coeff[j],*history,sumo);
+#endif
+		}
+		*(data++) = *(r++) + (sum >> lp_quantization);
+	}
+
+	/* Here's a slower but clearer version:
+	for(i = 0; i < data_len; i++) {
+		sum = 0;
+		for(j = 0; j < order; j++)
+			sum += qlp_coeff[j] * data[i-j-1];
+		data[i] = residual[i] + (sum >> lp_quantization);
+	}
+	*/
+}
+#else /* fully unrolled version for normal use */
+{
+	int i;
+	FLAC__int32 sum;
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	/*
+	 * We do unique versions up to 12th order since that's the subset limit.
+	 * Also they are roughly ordered to match frequency of occurrence to
+	 * minimize branching.
+	 */
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[11] * data[i-12];
+						sum += qlp_coeff[10] * data[i-11];
+						sum += qlp_coeff[9] * data[i-10];
+						sum += qlp_coeff[8] * data[i-9];
+						sum += qlp_coeff[7] * data[i-8];
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 11 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[10] * data[i-11];
+						sum += qlp_coeff[9] * data[i-10];
+						sum += qlp_coeff[8] * data[i-9];
+						sum += qlp_coeff[7] * data[i-8];
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[9] * data[i-10];
+						sum += qlp_coeff[8] * data[i-9];
+						sum += qlp_coeff[7] * data[i-8];
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 9 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[8] * data[i-9];
+						sum += qlp_coeff[7] * data[i-8];
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[7] * data[i-8];
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 7 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[6] * data[i-7];
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[5] * data[i-6];
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 5 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[4] * data[i-5];
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[3] * data[i-4];
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 3 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[2] * data[i-3];
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[1] * data[i-2];
+						sum += qlp_coeff[0] * data[i-1];
+						data[i] = residual[i] + (sum >> lp_quantization);
+					}
+				}
+				else { /* order == 1 */
+					for(i = 0; i < (int)data_len; i++)
+						data[i] = residual[i] + ((qlp_coeff[0] * data[i-1]) >> lp_quantization);
+				}
+			}
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * data[i-13];
+				         sum += qlp_coeff[11] * data[i-12];
+				         sum += qlp_coeff[10] * data[i-11];
+				         sum += qlp_coeff[ 9] * data[i-10];
+				         sum += qlp_coeff[ 8] * data[i- 9];
+				         sum += qlp_coeff[ 7] * data[i- 8];
+				         sum += qlp_coeff[ 6] * data[i- 7];
+				         sum += qlp_coeff[ 5] * data[i- 6];
+				         sum += qlp_coeff[ 4] * data[i- 5];
+				         sum += qlp_coeff[ 3] * data[i- 4];
+				         sum += qlp_coeff[ 2] * data[i- 3];
+				         sum += qlp_coeff[ 1] * data[i- 2];
+				         sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			data[i] = residual[i] + (sum >> lp_quantization);
+		}
+	}
+}
+#endif
+
+void FLAC__lpc_restore_signal_wide(const FLAC__int32 * flac_restrict residual, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int32 * flac_restrict data)
+#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
+{
+	uint32_t i, j;
+	FLAC__int64 sum;
+	const FLAC__int32 *r = residual, *history;
+
+#ifdef FLAC__OVERFLOW_DETECT_VERBOSE
+	fprintf(stderr,"FLAC__lpc_restore_signal_wide: data_len=%d, order=%u, lpq=%d",data_len,order,lp_quantization);
+	for(i=0;i<order;i++)
+		fprintf(stderr,", q[%u]=%d",i,qlp_coeff[i]);
+	fprintf(stderr,"\n");
+#endif
+	FLAC__ASSERT(order > 0);
+
+	for(i = 0; i < data_len; i++) {
+		sum = 0;
+		history = data;
+		for(j = 0; j < order; j++)
+			sum += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*(--history));
+#ifdef FLAC__OVERFLOW_DETECT
+		if(FLAC__bitmath_silog2((FLAC__int64)(*r) + (sum >> lp_quantization)) > 32) {
+			fprintf(stderr,"FLAC__lpc_restore_signal_wide: OVERFLOW, i=%u, residual=%d, sum=%" PRId64 ", data=%" PRId64 "\n", i, *r, (sum >> lp_quantization), ((FLAC__int64)(*r) + (sum >> lp_quantization)));
+			break;
+		}
+#endif
+		*(data++) = (FLAC__int32)(*(r++) + (sum >> lp_quantization));
+	}
+}
+#else /* fully unrolled version for normal use */
+{
+	int i;
+	FLAC__int64 sum;
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	/*
+	 * We do unique versions up to 12th order since that's the subset limit.
+	 * Also they are roughly ordered to match frequency of occurrence to
+	 * minimize branching.
+	 */
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
+						sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+						sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+				else { /* order == 11 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+						sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+				else { /* order == 9 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+				else { /* order == 7 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+				else { /* order == 5 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+				else { /* order == 3 */
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					for(i = 0; i < (int)data_len; i++) {
+						sum = 0;
+						sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+					}
+				}
+				else { /* order == 1 */
+					for(i = 0; i < (int)data_len; i++)
+						data[i] = (FLAC__int32)(residual[i] + ((qlp_coeff[0] * (FLAC__int64)data[i-1]) >> lp_quantization));
+				}
+			}
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
+				         sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
+				         sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+				         sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
+				         sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
+				         sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
+				         sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
+				         sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
+				         sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
+				         sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
+				         sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
+				         sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
+				         sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
+			}
+			data[i] = (FLAC__int32) (residual[i] + (sum >> lp_quantization));
+		}
+	}
+}
+#endif
+
+#ifdef FUZZING_BUILD_MODE_NO_SANITIZE_SIGNED_INTEGER_OVERFLOW
+/* The attribute below is to silence the undefined sanitizer of oss-fuzz.
+ * Because fuzzing feeds bogus predictors and residual samples to the
+ * decoder, having overflows in this section is unavoidable. Also,
+ * because the calculated values are audio path only, there is no
+ * potential for security problems */
+__attribute__((no_sanitize("signed-integer-overflow")))
+#endif
+void FLAC__lpc_restore_signal_wide_33bit(const FLAC__int32 * flac_restrict residual, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int64 * flac_restrict data)
+#if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS)
+{
+	uint32_t i, j;
+	FLAC__int64 sum;
+	const FLAC__int32 *r = residual;
+	const FLAC__int64 *history;
+
+	FLAC__ASSERT(order > 0);
+
+	for(i = 0; i < data_len; i++) {
+		sum = 0;
+		history = data;
+		for(j = 0; j < order; j++)
+			sum += (FLAC__int64)qlp_coeff[j] * (FLAC__int64)(*(--history));
+#ifdef FLAC__OVERFLOW_DETECT
+		if(FLAC__bitmath_silog2((FLAC__int64)(*r) + (sum >> lp_quantization)) > 33) {
+			fprintf(stderr,"FLAC__lpc_restore_signal_33bit: OVERFLOW, i=%u, residual=%d, sum=%" PRId64 ", data=%" PRId64 "\n", i, *r, (sum >> lp_quantization), ((FLAC__int64)(*r) + (sum >> lp_quantization)));
+			break;
+		}
+#endif
+		*(data++) = (FLAC__int64)(*(r++)) + (sum >> lp_quantization);
+	}
+}
+#else /* unrolled version for normal use */
+{
+	int i;
+	FLAC__int64 sum;
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	for(i = 0; i < (int)data_len; i++) {
+		sum = 0;
+		switch(order) {
+			case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+			case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+			case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+			case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+			case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+			case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+			case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+			case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+			case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+			case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+			case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+			case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+			case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+			case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+			case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+			case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+			case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+			case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+			case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+			case 13: sum += qlp_coeff[12] * data[i-13]; /* Falls through. */
+			case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+			case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+			case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+			case  9: sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+			case  8: sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+			case  7: sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+			case  6: sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+			case  5: sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+			case  4: sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+			case  3: sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+			case  2: sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
+			case  1: sum += qlp_coeff[ 0] * data[i- 1];
+		}
+		data[i] = residual[i] + (sum >> lp_quantization);
+	}
+}
+#endif
+
+#if defined(_MSC_VER)
+#pragma warning ( default : 4028 )
+#endif
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+double FLAC__lpc_compute_expected_bits_per_residual_sample(double lpc_error, uint32_t total_samples)
+{
+	double error_scale;
+
+	FLAC__ASSERT(total_samples > 0);
+
+	error_scale = 0.5 / (double)total_samples;
+
+	return FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(lpc_error, error_scale);
+}
+
+double FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(double lpc_error, double error_scale)
+{
+	if(lpc_error > 0.0) {
+		double bps = (double)0.5 * log(error_scale * lpc_error) / M_LN2;
+		if(bps >= 0.0)
+			return bps;
+		else
+			return 0.0;
+	}
+	else if(lpc_error < 0.0) { /* error should not be negative but can happen due to inadequate floating-point resolution */
+		return 1e32;
+	}
+	else {
+		return 0.0;
+	}
+}
+
+uint32_t FLAC__lpc_compute_best_order(const double lpc_error[], uint32_t max_order, uint32_t total_samples, uint32_t overhead_bits_per_order)
+{
+	uint32_t order, indx, best_index; /* 'index' the index into lpc_error; index==order-1 since lpc_error[0] is for order==1, lpc_error[1] is for order==2, etc */
+	double bits, best_bits, error_scale;
+
+	FLAC__ASSERT(max_order > 0);
+	FLAC__ASSERT(total_samples > 0);
+
+	error_scale = 0.5 / (double)total_samples;
+
+	best_index = 0;
+	best_bits = (uint32_t)(-1);
+
+	for(indx = 0, order = 1; indx < max_order; indx++, order++) {
+		bits = FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(lpc_error[indx], error_scale) * (double)(total_samples - order) + (double)(order * overhead_bits_per_order);
+		if(bits < best_bits) {
+			best_index = indx;
+			best_bits = bits;
+		}
+	}
+
+	return best_index+1; /* +1 since indx of lpc_error[] is order-1 */
+}
+
+#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_avx2.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_avx2.c
new file mode 100644
index 00000000..48bd7a85
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_avx2.c
@@ -0,0 +1,1122 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/lpc.h"
+#ifdef FLAC__AVX2_SUPPORTED
+
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+
+#include <immintrin.h> /* AVX2 */
+
+FLAC__SSE_TARGET("avx2")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+	FLAC__int32 sum;
+	const __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
+					q7  = _mm256_set1_epi32(0xffff & qlp_coeff[7 ]);
+					q8  = _mm256_set1_epi32(0xffff & qlp_coeff[8 ]);
+					q9  = _mm256_set1_epi32(0xffff & qlp_coeff[9 ]);
+					q10 = _mm256_set1_epi32(0xffff & qlp_coeff[10]);
+					q11 = _mm256_set1_epi32(0xffff & qlp_coeff[11]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q11, _mm256_loadu_si256((const __m256i*)(const void*)(data+i-12)));
+						mull = _mm256_madd_epi16(q10, _mm256_loadu_si256((const __m256i*)(const void*)(data+i-11))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q9,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-10))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q8,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-9 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q7,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-8 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 11 */
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
+					q7  = _mm256_set1_epi32(0xffff & qlp_coeff[7 ]);
+					q8  = _mm256_set1_epi32(0xffff & qlp_coeff[8 ]);
+					q9  = _mm256_set1_epi32(0xffff & qlp_coeff[9 ]);
+					q10 = _mm256_set1_epi32(0xffff & qlp_coeff[10]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q10, _mm256_loadu_si256((const __m256i*)(const void*)(data+i-11)));
+						mull = _mm256_madd_epi16(q9,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-10))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q8,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-9 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q7,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-8 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
+					q7  = _mm256_set1_epi32(0xffff & qlp_coeff[7 ]);
+					q8  = _mm256_set1_epi32(0xffff & qlp_coeff[8 ]);
+					q9  = _mm256_set1_epi32(0xffff & qlp_coeff[9 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q9,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-10)));
+						mull = _mm256_madd_epi16(q8,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-9 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q7,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-8 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 9 */
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
+					q7  = _mm256_set1_epi32(0xffff & qlp_coeff[7 ]);
+					q8  = _mm256_set1_epi32(0xffff & qlp_coeff[8 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q8,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-9 )));
+						mull = _mm256_madd_epi16(q7,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-8 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
+					q7  = _mm256_set1_epi32(0xffff & qlp_coeff[7 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q7,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-8 )));
+						mull = _mm256_madd_epi16(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 7 */
+					__m256i q0, q1, q2, q3, q4, q5, q6;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(0xffff & qlp_coeff[6 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7 )));
+						mull = _mm256_madd_epi16(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					__m256i q0, q1, q2, q3, q4, q5;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(0xffff & qlp_coeff[5 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6 )));
+						mull = _mm256_madd_epi16(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 5 */
+					__m256i q0, q1, q2, q3, q4;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(0xffff & qlp_coeff[4 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5 )));
+						mull = _mm256_madd_epi16(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					__m256i q0, q1, q2, q3;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(0xffff & qlp_coeff[3 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4 )));
+						mull = _mm256_madd_epi16(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 3 */
+					__m256i q0, q1, q2;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(0xffff & qlp_coeff[2 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3 )));
+						mull = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 ))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					__m256i q0, q1;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(0xffff & qlp_coeff[1 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_madd_epi16(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2 )));
+						mull = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 ))); summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 1 */
+					__m256i q0;
+					q0  = _mm256_set1_epi32(0xffff & qlp_coeff[0 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ;
+						summ = _mm256_madd_epi16(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1 )));
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		for(; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
+				case 1:  sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * data[i-13];
+				         sum += qlp_coeff[11] * data[i-12];
+				         sum += qlp_coeff[10] * data[i-11];
+				         sum += qlp_coeff[ 9] * data[i-10];
+				         sum += qlp_coeff[ 8] * data[i- 9];
+				         sum += qlp_coeff[ 7] * data[i- 8];
+				         sum += qlp_coeff[ 6] * data[i- 7];
+				         sum += qlp_coeff[ 5] * data[i- 6];
+				         sum += qlp_coeff[ 4] * data[i- 5];
+				         sum += qlp_coeff[ 3] * data[i- 4];
+				         sum += qlp_coeff[ 2] * data[i- 3];
+				         sum += qlp_coeff[ 1] * data[i- 2];
+				         sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+	_mm256_zeroupper();
+}
+
+FLAC__SSE_TARGET("avx2")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+	FLAC__int32 sum;
+	const __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(qlp_coeff[6 ]);
+					q7  = _mm256_set1_epi32(qlp_coeff[7 ]);
+					q8  = _mm256_set1_epi32(qlp_coeff[8 ]);
+					q9  = _mm256_set1_epi32(qlp_coeff[9 ]);
+					q10 = _mm256_set1_epi32(qlp_coeff[10]);
+					q11 = _mm256_set1_epi32(qlp_coeff[11]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q11, _mm256_loadu_si256((const __m256i*)(const void*)(data+i-12)));
+						mull = _mm256_mullo_epi32(q10, _mm256_loadu_si256((const __m256i*)(const void*)(data+i-11))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q9,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-10))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q8,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-9)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q7,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-8)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 11 */
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(qlp_coeff[6 ]);
+					q7  = _mm256_set1_epi32(qlp_coeff[7 ]);
+					q8  = _mm256_set1_epi32(qlp_coeff[8 ]);
+					q9  = _mm256_set1_epi32(qlp_coeff[9 ]);
+					q10 = _mm256_set1_epi32(qlp_coeff[10]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q10, _mm256_loadu_si256((const __m256i*)(const void*)(data+i-11)));
+						mull = _mm256_mullo_epi32(q9,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-10))); summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q8,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-9)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q7,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-8)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(qlp_coeff[6 ]);
+					q7  = _mm256_set1_epi32(qlp_coeff[7 ]);
+					q8  = _mm256_set1_epi32(qlp_coeff[8 ]);
+					q9  = _mm256_set1_epi32(qlp_coeff[9 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q9,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-10)));
+						mull = _mm256_mullo_epi32(q8,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-9)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q7,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-8)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 9 */
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(qlp_coeff[6 ]);
+					q7  = _mm256_set1_epi32(qlp_coeff[7 ]);
+					q8  = _mm256_set1_epi32(qlp_coeff[8 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q8,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-9)));
+						mull = _mm256_mullo_epi32(q7,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-8)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(qlp_coeff[6 ]);
+					q7  = _mm256_set1_epi32(qlp_coeff[7 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q7,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-8)));
+						mull = _mm256_mullo_epi32(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 7 */
+					__m256i q0, q1, q2, q3, q4, q5, q6;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(qlp_coeff[5 ]);
+					q6  = _mm256_set1_epi32(qlp_coeff[6 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q6,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-7)));
+						mull = _mm256_mullo_epi32(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					__m256i q0, q1, q2, q3, q4, q5;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(qlp_coeff[4 ]);
+					q5  = _mm256_set1_epi32(qlp_coeff[5 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q5,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-6)));
+						mull = _mm256_mullo_epi32(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 5 */
+					__m256i q0, q1, q2, q3, q4;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(qlp_coeff[3 ]);
+					q4  = _mm256_set1_epi32(qlp_coeff[4 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q4,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-5)));
+						mull = _mm256_mullo_epi32(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					__m256i q0, q1, q2, q3;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(qlp_coeff[2 ]);
+					q3  = _mm256_set1_epi32(qlp_coeff[3 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q3,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-4)));
+						mull = _mm256_mullo_epi32(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 3 */
+					__m256i q0, q1, q2;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+					q2  = _mm256_set1_epi32(qlp_coeff[2 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q2,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-3)));
+						mull = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));  summ = _mm256_add_epi32(summ, mull);
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					__m256i q0, q1;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+					q1  = _mm256_set1_epi32(qlp_coeff[1 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ, mull;
+						summ = _mm256_mullo_epi32(q1,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-2)));
+						mull = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));  summ = _mm256_add_epi32(summ, mull);
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 1 */
+					__m256i q0;
+					q0  = _mm256_set1_epi32(qlp_coeff[0 ]);
+
+					for(i = 0; i < (int)data_len-7; i+=8) {
+						__m256i summ;
+						summ = _mm256_mullo_epi32(q0,  _mm256_loadu_si256((const __m256i*)(const void*)(data+i-1)));
+						summ = _mm256_sra_epi32(summ, cnt);
+						_mm256_storeu_si256((__m256i*)(void*)(residual+i), _mm256_sub_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		for(; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
+				case 1:  sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * data[i-13];
+				         sum += qlp_coeff[11] * data[i-12];
+				         sum += qlp_coeff[10] * data[i-11];
+				         sum += qlp_coeff[ 9] * data[i-10];
+				         sum += qlp_coeff[ 8] * data[i- 9];
+				         sum += qlp_coeff[ 7] * data[i- 8];
+				         sum += qlp_coeff[ 6] * data[i- 7];
+				         sum += qlp_coeff[ 5] * data[i- 6];
+				         sum += qlp_coeff[ 4] * data[i- 5];
+				         sum += qlp_coeff[ 3] * data[i- 4];
+				         sum += qlp_coeff[ 2] * data[i- 3];
+				         sum += qlp_coeff[ 1] * data[i- 2];
+				         sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+	_mm256_zeroupper();
+}
+
+static FLAC__int32 pack_arr[8] = { 0, 2, 4, 6, 1, 3, 5, 7 };
+
+FLAC__SSE_TARGET("avx2")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+	FLAC__int64 sum;
+	const __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
+	const __m256i pack = _mm256_loadu_si256((const __m256i *)(const void*)pack_arr);
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+	FLAC__ASSERT(lp_quantization <= 32); /* there's no _mm256_sra_epi64() so we have to use _mm256_srl_epi64() */
+
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+					q2  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
+					q3  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
+					q4  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
+					q5  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
+					q6  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
+					q7  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[7 ]));
+					q8  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[8 ]));
+					q9  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[9 ]));
+					q10 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[10]));
+					q11 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[11]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q11, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-12))));
+						mull = _mm256_mul_epi32(q10, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-11)))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q9,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-10)))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q8,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-9 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q7,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-8 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q6,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-7 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q5,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q4,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q3,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q2,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+				else { /* order == 11 */
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+					q2  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
+					q3  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
+					q4  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
+					q5  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
+					q6  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
+					q7  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[7 ]));
+					q8  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[8 ]));
+					q9  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[9 ]));
+					q10 = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[10]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q10, _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-11))));
+						mull = _mm256_mul_epi32(q9,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-10)))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q8,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-9 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q7,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-8 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q6,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-7 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q5,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q4,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q3,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q2,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+					q2  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
+					q3  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
+					q4  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
+					q5  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
+					q6  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
+					q7  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[7 ]));
+					q8  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[8 ]));
+					q9  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[9 ]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q9,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-10))));
+						mull = _mm256_mul_epi32(q8,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-9 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q7,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-8 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q6,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-7 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q5,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q4,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q3,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q2,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+				else { /* order == 9 */
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7, q8;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+					q2  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
+					q3  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
+					q4  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
+					q5  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
+					q6  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
+					q7  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[7 ]));
+					q8  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[8 ]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q8,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-9 ))));
+						mull = _mm256_mul_epi32(q7,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-8 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q6,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-7 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q5,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q4,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q3,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q2,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					__m256i q0, q1, q2, q3, q4, q5, q6, q7;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+					q2  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
+					q3  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
+					q4  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
+					q5  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
+					q6  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
+					q7  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[7 ]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q7,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-8 ))));
+						mull = _mm256_mul_epi32(q6,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-7 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q5,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q4,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q3,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q2,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+				else { /* order == 7 */
+					__m256i q0, q1, q2, q3, q4, q5, q6;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+					q2  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
+					q3  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
+					q4  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
+					q5  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
+					q6  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[6 ]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q6,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-7 ))));
+						mull = _mm256_mul_epi32(q5,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-6 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q4,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q3,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q2,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					__m256i q0, q1, q2, q3, q4, q5;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+					q2  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
+					q3  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
+					q4  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
+					q5  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[5 ]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q5,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-6 ))));
+						mull = _mm256_mul_epi32(q4,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-5 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q3,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q2,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+				else { /* order == 5 */
+					__m256i q0, q1, q2, q3, q4;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+					q2  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
+					q3  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
+					q4  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[4 ]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q4,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-5 ))));
+						mull = _mm256_mul_epi32(q3,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-4 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q2,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					__m256i q0, q1, q2, q3;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+					q2  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
+					q3  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[3 ]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q3,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-4 ))));
+						mull = _mm256_mul_epi32(q2,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-3 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+				else { /* order == 3 */
+					__m256i q0, q1, q2;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+					q2  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[2 ]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q2,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-3 ))));
+						mull = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 )))); summ = _mm256_add_epi64(summ, mull);
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					__m256i q0, q1;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+					q1  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[1 ]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ, mull;
+						summ = _mm256_mul_epi32(q1,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-2 ))));
+						mull = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 )))); summ = _mm256_add_epi64(summ, mull);
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+				else { /* order == 1 */
+					__m256i q0;
+					q0  = _mm256_cvtepu32_epi64(_mm_set1_epi32(qlp_coeff[0 ]));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m256i summ;
+						summ = _mm256_mul_epi32(q0,  _mm256_cvtepu32_epi64(_mm_loadu_si128((const __m128i*)(const void*)(data+i-1 ))));
+						summ = _mm256_permutevar8x32_epi32(_mm256_srl_epi64(summ, cnt), pack);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), _mm256_castsi256_si128(summ)));
+					}
+				}
+			}
+		}
+		for(; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 12: sum += qlp_coeff[11] * (FLAC__int64)data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * (FLAC__int64)data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2]; /* Falls through. */
+				case 1:  sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
+			}
+			residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
+				         sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
+				         sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+				         sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
+				         sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
+				         sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
+				         sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
+				         sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
+				         sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
+				         sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
+				         sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
+				         sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
+				         sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
+			}
+			residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
+		}
+	}
+	_mm256_zeroupper();
+}
+
+#endif /* FLAC__AVX2_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_sse.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_sse.c
new file mode 100644
index 00000000..8c7902f9
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_sse.c
@@ -0,0 +1,454 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2016  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/lpc.h"
+#ifdef FLAC__SSE_SUPPORTED
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+
+#include <xmmintrin.h> /* SSE */
+
+/*   new routines: more unaligned loads, less shuffle
+ *   old routines: less unaligned loads, more shuffle
+ *   these *_old routines are equivalent to the ASM routines in ia32/lpc_asm.nasm
+ */
+
+/* new routines: faster on current Intel (starting from Core i aka Nehalem) and all AMD CPUs */
+
+FLAC__SSE_TARGET("sse")
+void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_new(const FLAC__real data[], uint32_t data_len, uint32_t lag, FLAC__real autoc[])
+{
+	int i;
+	int limit = data_len - 4;
+	__m128 sum0;
+
+	(void) lag;
+	FLAC__ASSERT(lag <= 4);
+	FLAC__ASSERT(lag <= data_len);
+
+	sum0 = _mm_setzero_ps();
+
+	for(i = 0; i <= limit; i++) {
+		__m128 d, d0;
+		d0 = _mm_loadu_ps(data+i);
+		d = _mm_shuffle_ps(d0, d0, 0);
+		sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
+	}
+
+	{
+		__m128 d0 = _mm_setzero_ps();
+		limit++; if(limit < 0) limit = 0;
+
+		for(i = data_len-1; i >= limit; i--) {
+			__m128 d;
+			d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
+			d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
+			d0 = _mm_move_ss(d0, d);
+			sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
+		}
+	}
+
+	_mm_storeu_ps(autoc,   sum0);
+}
+
+FLAC__SSE_TARGET("sse")
+void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_new(const FLAC__real data[], uint32_t data_len, uint32_t lag, FLAC__real autoc[])
+{
+	int i;
+	int limit = data_len - 8;
+	__m128 sum0, sum1;
+
+	(void) lag;
+	FLAC__ASSERT(lag <= 8);
+	FLAC__ASSERT(lag <= data_len);
+
+	sum0 = _mm_setzero_ps();
+	sum1 = _mm_setzero_ps();
+
+	for(i = 0; i <= limit; i++) {
+		__m128 d, d0, d1;
+		d0 = _mm_loadu_ps(data+i);
+		d1 = _mm_loadu_ps(data+i+4);
+		d = _mm_shuffle_ps(d0, d0, 0);
+		sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
+		sum1 = _mm_add_ps(sum1, _mm_mul_ps(d1, d));
+	}
+
+	{
+		__m128 d0 = _mm_setzero_ps();
+		__m128 d1 = _mm_setzero_ps();
+		limit++; if(limit < 0) limit = 0;
+
+		for(i = data_len-1; i >= limit; i--) {
+			__m128 d;
+			d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
+			d1 = _mm_shuffle_ps(d1, d1, _MM_SHUFFLE(2,1,0,3));
+			d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
+			d1 = _mm_move_ss(d1, d0);
+			d0 = _mm_move_ss(d0, d);
+			sum1 = _mm_add_ps(sum1, _mm_mul_ps(d, d1));
+			sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
+		}
+	}
+
+	_mm_storeu_ps(autoc,   sum0);
+	_mm_storeu_ps(autoc+4, sum1);
+}
+
+FLAC__SSE_TARGET("sse")
+void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_new(const FLAC__real data[], uint32_t data_len, uint32_t lag, FLAC__real autoc[])
+{
+	int i;
+	int limit = data_len - 12;
+	__m128 sum0, sum1, sum2;
+
+	(void) lag;
+	FLAC__ASSERT(lag <= 12);
+	FLAC__ASSERT(lag <= data_len);
+
+	sum0 = _mm_setzero_ps();
+	sum1 = _mm_setzero_ps();
+	sum2 = _mm_setzero_ps();
+
+	for(i = 0; i <= limit; i++) {
+		__m128 d, d0, d1, d2;
+		d0 = _mm_loadu_ps(data+i);
+		d1 = _mm_loadu_ps(data+i+4);
+		d2 = _mm_loadu_ps(data+i+8);
+		d = _mm_shuffle_ps(d0, d0, 0);
+		sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
+		sum1 = _mm_add_ps(sum1, _mm_mul_ps(d1, d));
+		sum2 = _mm_add_ps(sum2, _mm_mul_ps(d2, d));
+	}
+
+	{
+		__m128 d0 = _mm_setzero_ps();
+		__m128 d1 = _mm_setzero_ps();
+		__m128 d2 = _mm_setzero_ps();
+		limit++; if(limit < 0) limit = 0;
+
+		for(i = data_len-1; i >= limit; i--) {
+			__m128 d;
+			d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
+			d2 = _mm_shuffle_ps(d2, d2, _MM_SHUFFLE(2,1,0,3));
+			d1 = _mm_shuffle_ps(d1, d1, _MM_SHUFFLE(2,1,0,3));
+			d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
+			d2 = _mm_move_ss(d2, d1);
+			d1 = _mm_move_ss(d1, d0);
+			d0 = _mm_move_ss(d0, d);
+			sum2 = _mm_add_ps(sum2, _mm_mul_ps(d, d2));
+			sum1 = _mm_add_ps(sum1, _mm_mul_ps(d, d1));
+			sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
+		}
+	}
+
+	_mm_storeu_ps(autoc,   sum0);
+	_mm_storeu_ps(autoc+4, sum1);
+	_mm_storeu_ps(autoc+8, sum2);
+}
+
+FLAC__SSE_TARGET("sse")
+void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_new(const FLAC__real data[], uint32_t data_len, uint32_t lag, FLAC__real autoc[])
+{
+	int i;
+	int limit = data_len - 16;
+	__m128 sum0, sum1, sum2, sum3;
+
+	(void) lag;
+	FLAC__ASSERT(lag <= 16);
+	FLAC__ASSERT(lag <= data_len);
+
+	sum0 = _mm_setzero_ps();
+	sum1 = _mm_setzero_ps();
+	sum2 = _mm_setzero_ps();
+	sum3 = _mm_setzero_ps();
+
+	for(i = 0; i <= limit; i++) {
+		__m128 d, d0, d1, d2, d3;
+		d0 = _mm_loadu_ps(data+i);
+		d1 = _mm_loadu_ps(data+i+4);
+		d2 = _mm_loadu_ps(data+i+8);
+		d3 = _mm_loadu_ps(data+i+12);
+		d = _mm_shuffle_ps(d0, d0, 0);
+		sum0 = _mm_add_ps(sum0, _mm_mul_ps(d0, d));
+		sum1 = _mm_add_ps(sum1, _mm_mul_ps(d1, d));
+		sum2 = _mm_add_ps(sum2, _mm_mul_ps(d2, d));
+		sum3 = _mm_add_ps(sum3, _mm_mul_ps(d3, d));
+	}
+
+	{
+		__m128 d0 = _mm_setzero_ps();
+		__m128 d1 = _mm_setzero_ps();
+		__m128 d2 = _mm_setzero_ps();
+		__m128 d3 = _mm_setzero_ps();
+		limit++; if(limit < 0) limit = 0;
+
+		for(i = data_len-1; i >= limit; i--) {
+			__m128 d;
+			d = _mm_load_ss(data+i); d = _mm_shuffle_ps(d, d, 0);
+			d3 = _mm_shuffle_ps(d3, d3, _MM_SHUFFLE(2,1,0,3));
+			d2 = _mm_shuffle_ps(d2, d2, _MM_SHUFFLE(2,1,0,3));
+			d1 = _mm_shuffle_ps(d1, d1, _MM_SHUFFLE(2,1,0,3));
+			d0 = _mm_shuffle_ps(d0, d0, _MM_SHUFFLE(2,1,0,3));
+			d3 = _mm_move_ss(d3, d2);
+			d2 = _mm_move_ss(d2, d1);
+			d1 = _mm_move_ss(d1, d0);
+			d0 = _mm_move_ss(d0, d);
+			sum3 = _mm_add_ps(sum3, _mm_mul_ps(d, d3));
+			sum2 = _mm_add_ps(sum2, _mm_mul_ps(d, d2));
+			sum1 = _mm_add_ps(sum1, _mm_mul_ps(d, d1));
+			sum0 = _mm_add_ps(sum0, _mm_mul_ps(d, d0));
+		}
+	}
+
+	_mm_storeu_ps(autoc,   sum0);
+	_mm_storeu_ps(autoc+4, sum1);
+	_mm_storeu_ps(autoc+8, sum2);
+	_mm_storeu_ps(autoc+12,sum3);
+}
+
+/* old routines: faster on older Intel CPUs (up to Core 2) */
+
+FLAC__SSE_TARGET("sse")
+void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_4_old(const FLAC__real data[], uint32_t data_len, uint32_t lag, FLAC__real autoc[])
+{
+	__m128 xmm0, xmm2, xmm5;
+
+	(void) lag;
+	FLAC__ASSERT(lag > 0);
+	FLAC__ASSERT(lag <= 4);
+	FLAC__ASSERT(lag <= data_len);
+	FLAC__ASSERT(data_len > 0);
+
+	xmm5 = _mm_setzero_ps();
+
+	xmm0 = _mm_load_ss(data++);
+	xmm2 = xmm0;
+	xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
+
+	xmm0 = _mm_mul_ps(xmm0, xmm2);
+	xmm5 = _mm_add_ps(xmm5, xmm0);
+
+	data_len--;
+
+	while(data_len)
+	{
+		xmm0 = _mm_load1_ps(data++);
+
+		xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
+		xmm2 = _mm_move_ss(xmm2, xmm0);
+		xmm0 = _mm_mul_ps(xmm0, xmm2);
+		xmm5 = _mm_add_ps(xmm5, xmm0);
+
+		data_len--;
+	}
+
+	_mm_storeu_ps(autoc, xmm5);
+}
+
+FLAC__SSE_TARGET("sse")
+void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_8_old(const FLAC__real data[], uint32_t data_len, uint32_t lag, FLAC__real autoc[])
+{
+	__m128 xmm0, xmm1, xmm2, xmm3, xmm5, xmm6;
+
+	(void) lag;
+	FLAC__ASSERT(lag > 0);
+	FLAC__ASSERT(lag <= 8);
+	FLAC__ASSERT(lag <= data_len);
+	FLAC__ASSERT(data_len > 0);
+
+	xmm5 = _mm_setzero_ps();
+	xmm6 = _mm_setzero_ps();
+
+	xmm0 = _mm_load_ss(data++);
+	xmm2 = xmm0;
+	xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
+	xmm3 = _mm_setzero_ps();
+
+	xmm0 = _mm_mul_ps(xmm0, xmm2);
+	xmm5 = _mm_add_ps(xmm5, xmm0);
+
+	data_len--;
+
+	while(data_len)
+	{
+		xmm0 = _mm_load1_ps(data++);
+
+		xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
+		xmm3 = _mm_shuffle_ps(xmm3, xmm3, _MM_SHUFFLE(2,1,0,3));
+		xmm3 = _mm_move_ss(xmm3, xmm2);
+		xmm2 = _mm_move_ss(xmm2, xmm0);
+
+		xmm1 = xmm0;
+		xmm1 = _mm_mul_ps(xmm1, xmm3);
+		xmm0 = _mm_mul_ps(xmm0, xmm2);
+		xmm6 = _mm_add_ps(xmm6, xmm1);
+		xmm5 = _mm_add_ps(xmm5, xmm0);
+
+		data_len--;
+	}
+
+	_mm_storeu_ps(autoc,   xmm5);
+	_mm_storeu_ps(autoc+4, xmm6);
+}
+
+FLAC__SSE_TARGET("sse")
+void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_12_old(const FLAC__real data[], uint32_t data_len, uint32_t lag, FLAC__real autoc[])
+{
+	__m128 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
+
+	(void) lag;
+	FLAC__ASSERT(lag > 0);
+	FLAC__ASSERT(lag <= 12);
+	FLAC__ASSERT(lag <= data_len);
+	FLAC__ASSERT(data_len > 0);
+
+	xmm5 = _mm_setzero_ps();
+	xmm6 = _mm_setzero_ps();
+	xmm7 = _mm_setzero_ps();
+
+	xmm0 = _mm_load_ss(data++);
+	xmm2 = xmm0;
+	xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
+	xmm3 = _mm_setzero_ps();
+	xmm4 = _mm_setzero_ps();
+
+	xmm0 = _mm_mul_ps(xmm0, xmm2);
+	xmm5 = _mm_add_ps(xmm5, xmm0);
+
+	data_len--;
+
+	while(data_len)
+	{
+		xmm0 = _mm_load1_ps(data++);
+
+		xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
+		xmm3 = _mm_shuffle_ps(xmm3, xmm3, _MM_SHUFFLE(2,1,0,3));
+		xmm4 = _mm_shuffle_ps(xmm4, xmm4, _MM_SHUFFLE(2,1,0,3));
+		xmm4 = _mm_move_ss(xmm4, xmm3);
+		xmm3 = _mm_move_ss(xmm3, xmm2);
+		xmm2 = _mm_move_ss(xmm2, xmm0);
+
+		xmm1 = xmm0;
+		xmm1 = _mm_mul_ps(xmm1, xmm2);
+		xmm5 = _mm_add_ps(xmm5, xmm1);
+		xmm1 = xmm0;
+		xmm1 = _mm_mul_ps(xmm1, xmm3);
+		xmm6 = _mm_add_ps(xmm6, xmm1);
+		xmm0 = _mm_mul_ps(xmm0, xmm4);
+		xmm7 = _mm_add_ps(xmm7, xmm0);
+
+		data_len--;
+	}
+
+	_mm_storeu_ps(autoc,   xmm5);
+	_mm_storeu_ps(autoc+4, xmm6);
+	_mm_storeu_ps(autoc+8, xmm7);
+}
+
+FLAC__SSE_TARGET("sse")
+void FLAC__lpc_compute_autocorrelation_intrin_sse_lag_16_old(const FLAC__real data[], uint32_t data_len, uint32_t lag, FLAC__real autoc[])
+{
+	__m128 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, xmm8, xmm9;
+
+	(void) lag;
+	FLAC__ASSERT(lag > 0);
+	FLAC__ASSERT(lag <= 16);
+	FLAC__ASSERT(lag <= data_len);
+	FLAC__ASSERT(data_len > 0);
+
+	xmm6 = _mm_setzero_ps();
+	xmm7 = _mm_setzero_ps();
+	xmm8 = _mm_setzero_ps();
+	xmm9 = _mm_setzero_ps();
+
+	xmm0 = _mm_load_ss(data++);
+	xmm2 = xmm0;
+	xmm0 = _mm_shuffle_ps(xmm0, xmm0, 0);
+	xmm3 = _mm_setzero_ps();
+	xmm4 = _mm_setzero_ps();
+	xmm5 = _mm_setzero_ps();
+
+	xmm0 = _mm_mul_ps(xmm0, xmm2);
+	xmm6 = _mm_add_ps(xmm6, xmm0);
+
+	data_len--;
+
+	while(data_len)
+	{
+		xmm0 = _mm_load1_ps(data++);
+
+		/* shift xmm5:xmm4:xmm3:xmm2 left by one float */
+		xmm5 = _mm_shuffle_ps(xmm5, xmm5, _MM_SHUFFLE(2,1,0,3));
+		xmm4 = _mm_shuffle_ps(xmm4, xmm4, _MM_SHUFFLE(2,1,0,3));
+		xmm3 = _mm_shuffle_ps(xmm3, xmm3, _MM_SHUFFLE(2,1,0,3));
+		xmm2 = _mm_shuffle_ps(xmm2, xmm2, _MM_SHUFFLE(2,1,0,3));
+		xmm5 = _mm_move_ss(xmm5, xmm4);
+		xmm4 = _mm_move_ss(xmm4, xmm3);
+		xmm3 = _mm_move_ss(xmm3, xmm2);
+		xmm2 = _mm_move_ss(xmm2, xmm0);
+
+		/* xmm9|xmm8|xmm7|xmm6 += xmm0|xmm0|xmm0|xmm0 * xmm5|xmm4|xmm3|xmm2 */
+		xmm1 = xmm0;
+		xmm1 = _mm_mul_ps(xmm1, xmm5);
+		xmm9 = _mm_add_ps(xmm9, xmm1);
+		xmm1 = xmm0;
+		xmm1 = _mm_mul_ps(xmm1, xmm4);
+		xmm8 = _mm_add_ps(xmm8, xmm1);
+		xmm1 = xmm0;
+		xmm1 = _mm_mul_ps(xmm1, xmm3);
+		xmm7 = _mm_add_ps(xmm7, xmm1);
+		xmm0 = _mm_mul_ps(xmm0, xmm2);
+		xmm6 = _mm_add_ps(xmm6, xmm0);
+
+		data_len--;
+	}
+
+	_mm_storeu_ps(autoc,   xmm6);
+	_mm_storeu_ps(autoc+4, xmm7);
+	_mm_storeu_ps(autoc+8, xmm8);
+	_mm_storeu_ps(autoc+12,xmm9);
+}
+
+#endif /* FLAC__SSE_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_sse2.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_sse2.c
new file mode 100644
index 00000000..d166d9b8
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_sse2.c
@@ -0,0 +1,963 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/lpc.h"
+#ifdef FLAC__SSE2_SUPPORTED
+
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+
+#include <emmintrin.h> /* SSE2 */
+
+#define RESIDUAL32_RESULT(xmmN) residual[i] = data[i] - (_mm_cvtsi128_si32(xmmN) >> lp_quantization);
+#define     DATA32_RESULT(xmmN) data[i] = residual[i] + (_mm_cvtsi128_si32(xmmN) >> lp_quantization);
+
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 8
+#include "deduplication/lpc_compute_autocorrelation_intrin_sse2.c"
+}
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 10
+#include "deduplication/lpc_compute_autocorrelation_intrin_sse2.c"
+}
+
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 14
+#include "deduplication/lpc_compute_autocorrelation_intrin_sse2.c"
+}
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+	FLAC__int32 sum;
+	const __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(0xffff & qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+					q10 = _mm_cvtsi32_si128(0xffff & qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
+					q11 = _mm_cvtsi32_si128(0xffff & qlp_coeff[11]); q11 = _mm_shuffle_epi32(q11, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q11, _mm_loadu_si128((const __m128i*)(const void*)(data+i-12)));
+						mull = _mm_madd_epi16(q10, _mm_loadu_si128((const __m128i*)(const void*)(data+i-11))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 11 */
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(0xffff & qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+					q10 = _mm_cvtsi32_si128(0xffff & qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q10, _mm_loadu_si128((const __m128i*)(const void*)(data+i-11)));
+						mull = _mm_madd_epi16(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(0xffff & qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10)));
+						mull = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 9 */
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9)));
+						mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8)));
+						mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 7 */
+					__m128i q0, q1, q2, q3, q4, q5, q6;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7)));
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					__m128i q0, q1, q2, q3, q4, q5;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6)));
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 5 */
+					__m128i q0, q1, q2, q3, q4;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5)));
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					__m128i q0, q1, q2, q3;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4)));
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 3 */
+					__m128i q0, q1, q2;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3)));
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					__m128i q0, q1;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2)));
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 1 */
+					__m128i q0;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ;
+						summ = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1)));
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		for(; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
+				case 1:  sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * data[i-13];
+				         sum += qlp_coeff[11] * data[i-12];
+				         sum += qlp_coeff[10] * data[i-11];
+				         sum += qlp_coeff[ 9] * data[i-10];
+				         sum += qlp_coeff[ 8] * data[i- 9];
+				         sum += qlp_coeff[ 7] * data[i- 8];
+				         sum += qlp_coeff[ 6] * data[i- 7];
+				         sum += qlp_coeff[ 5] * data[i- 6];
+				         sum += qlp_coeff[ 4] * data[i- 5];
+				         sum += qlp_coeff[ 3] * data[i- 4];
+				         sum += qlp_coeff[ 2] * data[i- 3];
+				         sum += qlp_coeff[ 1] * data[i- 2];
+				         sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+}
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	if(order <= 12) {
+		if(order > 8) { /* order == 9, 10, 11, 12 */
+			if(order > 10) { /* order == 11, 12 */
+				if(order == 12) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));  // 0  0  q[1]  q[0]
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));  // 0  0  q[3]  q[2]
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));  // 0  0  q[5]  q[4]
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));  // 0  0  q[7]  q[6]
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));  // 0  0  q[9]  q[8]
+					xmm5 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+10)); // 0  0  q[11] q[10]
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0)); // 0  q[1]  0  q[0]
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0)); // 0  q[3]  0  q[2]
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0)); // 0  q[5]  0  q[4]
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0)); // 0  q[7]  0  q[6]
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0)); // 0  q[9]  0  q[8]
+					xmm5 = _mm_shuffle_epi32(xmm5, _MM_SHUFFLE(3,1,2,0)); // 0  q[11] 0  q[10]
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[11] * data[i-12];
+						//sum += qlp_coeff[10] * data[i-11];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-12));  // 0   0        d[i-11]  d[i-12]
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1)); // 0  d[i-12]   0        d[i-11]
+						xmm7 = _mm_mul_epu32(xmm7, xmm5); /* we use _unsigned_ multiplication and discard high dword of the result values */
+
+						//sum += qlp_coeff[9] * data[i-10];
+						//sum += qlp_coeff[8] * data[i-9];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm4);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[7] * data[i-8];
+						//sum += qlp_coeff[6] * data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm3);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 11 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));
+					xmm5 = _mm_cvtsi32_si128(qlp_coeff[10]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[10] * data[i-11];
+						xmm7 = _mm_cvtsi32_si128(data[i-11]);
+						xmm7 = _mm_mul_epu32(xmm7, xmm5);
+
+						//sum += qlp_coeff[9] * data[i-10];
+						//sum += qlp_coeff[8] * data[i-9];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm4);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[7] * data[i-8];
+						//sum += qlp_coeff[6] * data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm3);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+			}
+			else { /* order == 9, 10 */
+				if(order == 10) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[9] * data[i-10];
+						//sum += qlp_coeff[8] * data[i-9];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epu32(xmm7, xmm4);
+
+						//sum += qlp_coeff[7] * data[i-8];
+						//sum += qlp_coeff[6] * data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm3);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 9 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_cvtsi32_si128(qlp_coeff[8]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[8] * data[i-9];
+						xmm7 = _mm_cvtsi32_si128(data[i-9]);
+						xmm7 = _mm_mul_epu32(xmm7, xmm4);
+
+						//sum += qlp_coeff[7] * data[i-8];
+						//sum += qlp_coeff[6] * data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm3);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+			}
+		}
+		else if(order > 4) { /* order == 5, 6, 7, 8 */
+			if(order > 6) { /* order == 7, 8 */
+				if(order == 8) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[7] * data[i-8];
+						//sum += qlp_coeff[6] * data[i-7];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epu32(xmm7, xmm3);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 7 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_cvtsi32_si128(qlp_coeff[6]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[6] * data[i-7];
+						xmm7 = _mm_cvtsi32_si128(data[i-7]);
+						xmm7 = _mm_mul_epu32(xmm7, xmm3);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+			}
+			else { /* order == 5, 6 */
+				if(order == 6) {
+					__m128i xmm0, xmm1, xmm2, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epu32(xmm7, xmm2);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 5 */
+					__m128i xmm0, xmm1, xmm2, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_cvtsi32_si128(qlp_coeff[4]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[4] * data[i-5];
+						xmm7 = _mm_cvtsi32_si128(data[i-5]);
+						xmm7 = _mm_mul_epu32(xmm7, xmm2);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+			}
+		}
+		else { /* order == 1, 2, 3, 4 */
+			if(order > 2) { /* order == 3, 4 */
+				if(order == 4) {
+					__m128i xmm0, xmm1, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epu32(xmm7, xmm1);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 3 */
+					__m128i xmm0, xmm1, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_cvtsi32_si128(qlp_coeff[2]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[2] * data[i-3];
+						xmm7 = _mm_cvtsi32_si128(data[i-3]);
+						xmm7 = _mm_mul_epu32(xmm7, xmm1);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+			}
+			else { /* order == 1, 2 */
+				if(order == 2) {
+					__m128i xmm0, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epu32(xmm7, xmm0);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 1 */
+					for(i = 0; i < (int)data_len; i++)
+						residual[i] = data[i] - ((qlp_coeff[0] * data[i-1]) >> lp_quantization);
+				}
+			}
+		}
+	}
+	else { /* order > 12 */
+		FLAC__int32 sum;
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * data[i-13];
+				         sum += qlp_coeff[11] * data[i-12];
+				         sum += qlp_coeff[10] * data[i-11];
+				         sum += qlp_coeff[ 9] * data[i-10];
+				         sum += qlp_coeff[ 8] * data[i- 9];
+				         sum += qlp_coeff[ 7] * data[i- 8];
+				         sum += qlp_coeff[ 6] * data[i- 7];
+				         sum += qlp_coeff[ 5] * data[i- 6];
+				         sum += qlp_coeff[ 4] * data[i- 5];
+				         sum += qlp_coeff[ 3] * data[i- 4];
+				         sum += qlp_coeff[ 2] * data[i- 3];
+				         sum += qlp_coeff[ 1] * data[i- 2];
+				         sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+}
+
+#endif /* FLAC__SSE2_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_sse41.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_sse41.c
new file mode 100644
index 00000000..136f71ca
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_sse41.c
@@ -0,0 +1,950 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/lpc.h"
+#ifdef FLAC__SSE4_1_SUPPORTED
+
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+
+#include <smmintrin.h> /* SSE4.1 */
+
+#if defined FLAC__CPU_IA32 /* unused for x64 */
+
+#define RESIDUAL64_RESULT(xmmN)  residual[i] = data[i] - _mm_cvtsi128_si32(_mm_srl_epi64(xmmN, cnt))
+#define RESIDUAL64_RESULT1(xmmN) residual[i] = data[i] - _mm_cvtsi128_si32(_mm_srli_epi64(xmmN, lp_quantization))
+
+FLAC__SSE_TARGET("sse4.1")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+	const __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+	FLAC__ASSERT(lp_quantization <= 32); /* there's no _mm_sra_epi64() so we have to use _mm_srl_epi64() */
+
+	if(order <= 12) {
+		if(order > 8) { /* order == 9, 10, 11, 12 */
+			if(order > 10) { /* order == 11, 12 */
+				if(order == 12) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));  // 0  0  q[1]  q[0]
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));  // 0  0  q[3]  q[2]
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));  // 0  0  q[5]  q[4]
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));  // 0  0  q[7]  q[6]
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));  // 0  0  q[9]  q[8]
+					xmm5 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+10)); // 0  0  q[11] q[10]
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0)); // 0  q[1]  0  q[0]
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0)); // 0  q[3]  0  q[2]
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0)); // 0  q[5]  0  q[4]
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0)); // 0  q[7]  0  q[6]
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0)); // 0  q[9]  0  q[8]
+					xmm5 = _mm_shuffle_epi32(xmm5, _MM_SHUFFLE(3,1,2,0)); // 0  q[11] 0  q[10]
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
+						//sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-12));  // 0   0        d[i-11]  d[i-12]
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1)); // 0  d[i-12]   0        d[i-11]
+						xmm7 = _mm_mul_epi32(xmm7, xmm5);
+
+						//sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						//sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm4);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						//sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm3);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT1(xmm7);
+					}
+				}
+				else { /* order == 11 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));
+					xmm5 = _mm_cvtsi32_si128(qlp_coeff[10]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[10] * (FLAC__int64)data[i-11];
+						xmm7 = _mm_cvtsi32_si128(data[i-11]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm5);
+
+						//sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						//sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm4);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						//sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm3);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT1(xmm7);
+					}
+				}
+			}
+			else { /* order == 9, 10 */
+				if(order == 10) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						//sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epi32(xmm7, xmm4);
+
+						//sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						//sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm3);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+				else { /* order == 9 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_cvtsi32_si128(qlp_coeff[8]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[8] * (FLAC__int64)data[i-9];
+						xmm7 = _mm_cvtsi32_si128(data[i-9]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm4);
+
+						//sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						//sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm3);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+			}
+		}
+		else if(order > 4) { /* order == 5, 6, 7, 8 */
+			if(order > 6) { /* order == 7, 8 */
+				if(order == 8) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						//sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epi32(xmm7, xmm3);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+				else { /* order == 7 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_cvtsi32_si128(qlp_coeff[6]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm7 = _mm_cvtsi32_si128(data[i-7]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm3);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+			}
+			else { /* order == 5, 6 */
+				if(order == 6) {
+					__m128i xmm0, xmm1, xmm2, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epi32(xmm7, xmm2);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+				else { /* order == 5 */
+					__m128i xmm0, xmm1, xmm2, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_cvtsi32_si128(qlp_coeff[4]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm7 = _mm_cvtsi32_si128(data[i-5]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm2);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+			}
+		}
+		else { /* order == 1, 2, 3, 4 */
+			if(order > 2) { /* order == 3, 4 */
+				if(order == 4) {
+					__m128i xmm0, xmm1, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epi32(xmm7, xmm1);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+				else { /* order == 3 */
+					__m128i xmm0, xmm1, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_cvtsi32_si128(qlp_coeff[2]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm7 = _mm_cvtsi32_si128(data[i-3]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm1);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+			}
+			else { /* order == 1, 2 */
+				if(order == 2) {
+					__m128i xmm0, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epi32(xmm7, xmm0);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+				else { /* order == 1 */
+					__m128i xmm0, xmm7;
+					xmm0 = _mm_cvtsi32_si128(qlp_coeff[0]);
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm7 = _mm_cvtsi32_si128(data[i-1]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm0);
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+			}
+		}
+	}
+	else { /* order > 12 */
+		FLAC__int64 sum;
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
+				         sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
+				         sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+				         sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
+				         sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
+				         sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
+				         sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
+				         sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
+				         sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
+				         sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
+				         sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
+				         sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
+				         sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
+			}
+			residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
+		}
+	}
+}
+
+#endif /* defined FLAC__CPU_IA32 */
+
+FLAC__SSE_TARGET("sse4.1")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+	FLAC__int32 sum;
+	const __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+					q10 = _mm_cvtsi32_si128(qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
+					q11 = _mm_cvtsi32_si128(qlp_coeff[11]); q11 = _mm_shuffle_epi32(q11, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q11, _mm_loadu_si128((const __m128i*)(const void*)(data+i-12)));
+						mull = _mm_mullo_epi32(q10, _mm_loadu_si128((const __m128i*)(const void*)(data+i-11))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 11 */
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+					q10 = _mm_cvtsi32_si128(qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q10, _mm_loadu_si128((const __m128i*)(const void*)(data+i-11)));
+						mull = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10)));
+						mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 9 */
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9)));
+						mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8)));
+						mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 7 */
+					__m128i q0, q1, q2, q3, q4, q5, q6;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7)));
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					__m128i q0, q1, q2, q3, q4, q5;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6)));
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 5 */
+					__m128i q0, q1, q2, q3, q4;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5)));
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					__m128i q0, q1, q2, q3;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4)));
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 3 */
+					__m128i q0, q1, q2;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3)));
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					__m128i q0, q1;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2)));
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 1 */
+					__m128i q0;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ;
+						summ = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1)));
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		for(; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
+				case 1:  sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * data[i-13];
+				         sum += qlp_coeff[11] * data[i-12];
+				         sum += qlp_coeff[10] * data[i-11];
+				         sum += qlp_coeff[ 9] * data[i-10];
+				         sum += qlp_coeff[ 8] * data[i- 9];
+				         sum += qlp_coeff[ 7] * data[i- 8];
+				         sum += qlp_coeff[ 6] * data[i- 7];
+				         sum += qlp_coeff[ 5] * data[i- 6];
+				         sum += qlp_coeff[ 4] * data[i- 5];
+				         sum += qlp_coeff[ 3] * data[i- 4];
+				         sum += qlp_coeff[ 2] * data[i- 3];
+				         sum += qlp_coeff[ 1] * data[i- 2];
+				         sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+}
+
+#endif /* FLAC__SSE4_1_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_vsx.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_vsx.c
new file mode 100644
index 00000000..3f823b99
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/lpc_intrin_vsx.c
@@ -0,0 +1,102 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if defined(FLAC__CPU_PPC64) && defined(FLAC__USE_VSX)
+
+#include "private/cpu.h"
+#include "private/lpc.h"
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+
+#include <altivec.h>
+
+#ifdef FLAC__HAS_TARGET_POWER8
+__attribute__((target("cpu=power8")))
+void FLAC__lpc_compute_autocorrelation_intrin_power8_vsx_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 14
+#include "deduplication/lpc_compute_autocorrelation_intrin_vsx.c"
+}
+
+__attribute__((target("cpu=power8")))
+void FLAC__lpc_compute_autocorrelation_intrin_power8_vsx_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 10
+#include "deduplication/lpc_compute_autocorrelation_intrin_vsx.c"
+}
+
+__attribute__((target("cpu=power8")))
+void FLAC__lpc_compute_autocorrelation_intrin_power8_vsx_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 8
+#include "deduplication/lpc_compute_autocorrelation_intrin_vsx.c"
+}
+#endif /* FLAC__HAS_TARGET_POWER8 */
+
+#ifdef FLAC__HAS_TARGET_POWER9
+__attribute__((target("cpu=power9")))
+void FLAC__lpc_compute_autocorrelation_intrin_power9_vsx_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 14
+#include "deduplication/lpc_compute_autocorrelation_intrin_vsx.c"
+}
+
+__attribute__((target("cpu=power9")))
+void FLAC__lpc_compute_autocorrelation_intrin_power9_vsx_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 10
+#include "deduplication/lpc_compute_autocorrelation_intrin_vsx.c"
+}
+
+__attribute__((target("cpu=power9")))
+void FLAC__lpc_compute_autocorrelation_intrin_power9_vsx_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 8
+#include "deduplication/lpc_compute_autocorrelation_intrin_vsx.c"
+}
+#endif /* FLAC__HAS_TARGET_POWER9 */
+
+#endif /* FLAC__CPU_PPC64 && FLAC__USE_VSX */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/md5.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/md5.c
new file mode 100644
index 00000000..09933d7e
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/md5.c
@@ -0,0 +1,517 @@
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdlib.h>		/* for malloc() */
+#include <string.h>		/* for memcpy() */
+
+#include "private/md5.h"
+#include "share/alloc.h"
+#include "share/compat.h"
+#include "share/endswap.h"
+
+/*
+ * This code implements the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest.  This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ *
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ *
+ * Changed so as no longer to depend on Colin Plumb's `usual.h' header
+ * definitions; now uses stuff from dpkg's config.h.
+ *  - Ian Jackson <ijackson@nyx.cs.du.edu>.
+ * Still in the public domain.
+ *
+ * Josh Coalson: made some changes to integrate with libFLAC.
+ * Still in the public domain.
+ */
+
+/* The four core functions - F1 is optimized somewhat */
+
+/* #define F1(x, y, z) (x & y | ~x & z) */
+#define F1(x, y, z) (z ^ (x & (y ^ z)))
+#define F2(x, y, z) F1(z, x, y)
+#define F3(x, y, z) (x ^ y ^ z)
+#define F4(x, y, z) (y ^ (x | ~z))
+
+/* This is the central step in the MD5 algorithm. */
+#define MD5STEP(f,w,x,y,z,in,s) \
+	 (w += f(x,y,z) + in, w = (w<<s | w>>(32-s)) + x)
+
+/*
+ * The core of the MD5 algorithm, this alters an existing MD5 hash to
+ * reflect the addition of 16 longwords of new data.  MD5Update blocks
+ * the data and converts bytes into longwords for this routine.
+ */
+static void FLAC__MD5Transform(FLAC__uint32 buf[4], FLAC__uint32 const in[16])
+{
+	register FLAC__uint32 a, b, c, d;
+
+	a = buf[0];
+	b = buf[1];
+	c = buf[2];
+	d = buf[3];
+
+	MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+	MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+	MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+	MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+	MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+	MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+	MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+	MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+	MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+	MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+	MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+	MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+	MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+	MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+	MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+	MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+	MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+	MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+	MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+	MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+	MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+	MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+	MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+	MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+	MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+	MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+	MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+	MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+	MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+	MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+	MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+	MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+	MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+	MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+	MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+	MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+	MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+	MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+	MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+	MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+	MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+	MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+	MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+	MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+	MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+	MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+	MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+	MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+	MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+	MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+	MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+	MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+	MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+	MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+	MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+	MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+	MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+	MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+	MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+	MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+	MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+	MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+	MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+	MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+	buf[0] += a;
+	buf[1] += b;
+	buf[2] += c;
+	buf[3] += d;
+}
+
+#if WORDS_BIGENDIAN
+//@@@@@@ OPT: use bswap/intrinsics
+static void byteSwap(FLAC__uint32 *buf, uint32_t words)
+{
+	register FLAC__uint32 x;
+	do {
+		x = *buf;
+		x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff);
+		*buf++ = (x >> 16) | (x << 16);
+	} while (--words);
+}
+static void byteSwapX16(FLAC__uint32 *buf)
+{
+	register FLAC__uint32 x;
+
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf   = (x >> 16) | (x << 16);
+}
+#else
+#define byteSwap(buf, words)
+#define byteSwapX16(buf)
+#endif
+
+/*
+ * Update context to reflect the concatenation of another buffer full
+ * of bytes.
+ */
+static void FLAC__MD5Update(FLAC__MD5Context *ctx, FLAC__byte const *buf, uint32_t len)
+{
+	FLAC__uint32 t;
+
+	/* Update byte count */
+
+	t = ctx->bytes[0];
+	if ((ctx->bytes[0] = t + len) < t)
+		ctx->bytes[1]++;	/* Carry from low to high */
+
+	t = 64 - (t & 0x3f);	/* Space available in ctx->in (at least 1) */
+	if (t > len) {
+		memcpy((FLAC__byte *)ctx->in + 64 - t, buf, len);
+		return;
+	}
+	/* First chunk is an odd size */
+	memcpy((FLAC__byte *)ctx->in + 64 - t, buf, t);
+	byteSwapX16(ctx->in);
+	FLAC__MD5Transform(ctx->buf, ctx->in);
+	buf += t;
+	len -= t;
+
+	/* Process data in 64-byte chunks */
+	while (len >= 64) {
+		memcpy(ctx->in, buf, 64);
+		byteSwapX16(ctx->in);
+		FLAC__MD5Transform(ctx->buf, ctx->in);
+		buf += 64;
+		len -= 64;
+	}
+
+	/* Handle any remaining bytes of data. */
+	memcpy(ctx->in, buf, len);
+}
+
+/*
+ * Start MD5 accumulation.  Set bit count to 0 and buffer to mysterious
+ * initialization constants.
+ */
+void FLAC__MD5Init(FLAC__MD5Context *ctx)
+{
+	ctx->buf[0] = 0x67452301;
+	ctx->buf[1] = 0xefcdab89;
+	ctx->buf[2] = 0x98badcfe;
+	ctx->buf[3] = 0x10325476;
+
+	ctx->bytes[0] = 0;
+	ctx->bytes[1] = 0;
+
+	ctx->internal_buf.p8 = 0;
+	ctx->capacity = 0;
+}
+
+/*
+ * Final wrapup - pad to 64-byte boundary with the bit pattern
+ * 1 0* (64-bit count of bits processed, MSB-first)
+ */
+void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *ctx)
+{
+	int count = ctx->bytes[0] & 0x3f;	/* Number of bytes in ctx->in */
+	FLAC__byte *p = (FLAC__byte *)ctx->in + count;
+
+	/* Set the first char of padding to 0x80.  There is always room. */
+	*p++ = 0x80;
+
+	/* Bytes of padding needed to make 56 bytes (-8..55) */
+	count = 56 - 1 - count;
+
+	if (count < 0) {	/* Padding forces an extra block */
+		memset(p, 0, count + 8);
+		byteSwapX16(ctx->in);
+		FLAC__MD5Transform(ctx->buf, ctx->in);
+		p = (FLAC__byte *)ctx->in;
+		count = 56;
+	}
+	memset(p, 0, count);
+	byteSwap(ctx->in, 14);
+
+	/* Append length in bits and transform */
+	ctx->in[14] = ctx->bytes[0] << 3;
+	ctx->in[15] = ctx->bytes[1] << 3 | ctx->bytes[0] >> 29;
+	FLAC__MD5Transform(ctx->buf, ctx->in);
+
+	byteSwap(ctx->buf, 4);
+	memcpy(digest, ctx->buf, 16);
+	if (0 != ctx->internal_buf.p8) {
+		free(ctx->internal_buf.p8);
+		ctx->internal_buf.p8 = 0;
+		ctx->capacity = 0;
+	}
+	memset(ctx, 0, sizeof(*ctx));	/* In case it's sensitive */
+}
+
+/*
+ * Convert the incoming audio signal to a byte stream
+ */
+static void format_input_(FLAC__multibyte *mbuf, const FLAC__int32 * const signal[], uint32_t channels, uint32_t samples, uint32_t bytes_per_sample)
+{
+	FLAC__byte *buf_ = mbuf->p8;
+	FLAC__int16 *buf16 = mbuf->p16;
+	FLAC__int32 *buf32 = mbuf->p32;
+	FLAC__int32 a_word;
+	uint32_t channel, sample;
+
+	/* Storage in the output buffer, buf, is little endian. */
+
+#define BYTES_CHANNEL_SELECTOR(bytes, channels)   (bytes * 100 + channels)
+
+	/* First do the most commonly used combinations. */
+	switch (BYTES_CHANNEL_SELECTOR (bytes_per_sample, channels)) {
+		/* One byte per sample. */
+		case (BYTES_CHANNEL_SELECTOR (1, 1)):
+			for (sample = 0; sample < samples; sample++)
+				*buf_++ = signal[0][sample];
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (1, 2)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf_++ = signal[0][sample];
+				*buf_++ = signal[1][sample];
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (1, 4)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf_++ = signal[0][sample];
+				*buf_++ = signal[1][sample];
+				*buf_++ = signal[2][sample];
+				*buf_++ = signal[3][sample];
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (1, 6)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf_++ = signal[0][sample];
+				*buf_++ = signal[1][sample];
+				*buf_++ = signal[2][sample];
+				*buf_++ = signal[3][sample];
+				*buf_++ = signal[4][sample];
+				*buf_++ = signal[5][sample];
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (1, 8)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf_++ = signal[0][sample];
+				*buf_++ = signal[1][sample];
+				*buf_++ = signal[2][sample];
+				*buf_++ = signal[3][sample];
+				*buf_++ = signal[4][sample];
+				*buf_++ = signal[5][sample];
+				*buf_++ = signal[6][sample];
+				*buf_++ = signal[7][sample];
+			}
+			return;
+
+		/* Two bytes per sample. */
+		case (BYTES_CHANNEL_SELECTOR (2, 1)):
+			for (sample = 0; sample < samples; sample++)
+				*buf16++ = H2LE_16(signal[0][sample]);
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (2, 2)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf16++ = H2LE_16(signal[0][sample]);
+				*buf16++ = H2LE_16(signal[1][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (2, 4)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf16++ = H2LE_16(signal[0][sample]);
+				*buf16++ = H2LE_16(signal[1][sample]);
+				*buf16++ = H2LE_16(signal[2][sample]);
+				*buf16++ = H2LE_16(signal[3][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (2, 6)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf16++ = H2LE_16(signal[0][sample]);
+				*buf16++ = H2LE_16(signal[1][sample]);
+				*buf16++ = H2LE_16(signal[2][sample]);
+				*buf16++ = H2LE_16(signal[3][sample]);
+				*buf16++ = H2LE_16(signal[4][sample]);
+				*buf16++ = H2LE_16(signal[5][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (2, 8)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf16++ = H2LE_16(signal[0][sample]);
+				*buf16++ = H2LE_16(signal[1][sample]);
+				*buf16++ = H2LE_16(signal[2][sample]);
+				*buf16++ = H2LE_16(signal[3][sample]);
+				*buf16++ = H2LE_16(signal[4][sample]);
+				*buf16++ = H2LE_16(signal[5][sample]);
+				*buf16++ = H2LE_16(signal[6][sample]);
+				*buf16++ = H2LE_16(signal[7][sample]);
+			}
+			return;
+
+		/* Three bytes per sample. */
+		case (BYTES_CHANNEL_SELECTOR (3, 1)):
+			for (sample = 0; sample < samples; sample++) {
+				a_word = signal[0][sample];
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word;
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (3, 2)):
+			for (sample = 0; sample < samples; sample++) {
+				a_word = signal[0][sample];
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word;
+				a_word = signal[1][sample];
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word;
+			}
+			return;
+
+		/* Four bytes per sample. */
+		case (BYTES_CHANNEL_SELECTOR (4, 1)):
+			for (sample = 0; sample < samples; sample++)
+				*buf32++ = H2LE_32(signal[0][sample]);
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (4, 2)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf32++ = H2LE_32(signal[0][sample]);
+				*buf32++ = H2LE_32(signal[1][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (4, 4)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf32++ = H2LE_32(signal[0][sample]);
+				*buf32++ = H2LE_32(signal[1][sample]);
+				*buf32++ = H2LE_32(signal[2][sample]);
+				*buf32++ = H2LE_32(signal[3][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (4, 6)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf32++ = H2LE_32(signal[0][sample]);
+				*buf32++ = H2LE_32(signal[1][sample]);
+				*buf32++ = H2LE_32(signal[2][sample]);
+				*buf32++ = H2LE_32(signal[3][sample]);
+				*buf32++ = H2LE_32(signal[4][sample]);
+				*buf32++ = H2LE_32(signal[5][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (4, 8)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf32++ = H2LE_32(signal[0][sample]);
+				*buf32++ = H2LE_32(signal[1][sample]);
+				*buf32++ = H2LE_32(signal[2][sample]);
+				*buf32++ = H2LE_32(signal[3][sample]);
+				*buf32++ = H2LE_32(signal[4][sample]);
+				*buf32++ = H2LE_32(signal[5][sample]);
+				*buf32++ = H2LE_32(signal[6][sample]);
+				*buf32++ = H2LE_32(signal[7][sample]);
+			}
+			return;
+
+		default:
+			break;
+	}
+
+	/* General version. */
+	switch (bytes_per_sample) {
+		case 1:
+			for (sample = 0; sample < samples; sample++)
+				for (channel = 0; channel < channels; channel++)
+					*buf_++ = signal[channel][sample];
+			return;
+
+		case 2:
+			for (sample = 0; sample < samples; sample++)
+				for (channel = 0; channel < channels; channel++)
+					*buf16++ = H2LE_16(signal[channel][sample]);
+			return;
+
+		case 3:
+			for (sample = 0; sample < samples; sample++)
+				for (channel = 0; channel < channels; channel++) {
+					a_word = signal[channel][sample];
+					*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+					*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+					*buf_++ = (FLAC__byte)a_word;
+				}
+			return;
+
+		case 4:
+			for (sample = 0; sample < samples; sample++)
+				for (channel = 0; channel < channels; channel++)
+					*buf32++ = H2LE_32(signal[channel][sample]);
+			return;
+
+		default:
+			break;
+	}
+}
+
+/*
+ * Convert the incoming audio signal to a byte stream and FLAC__MD5Update it.
+ */
+FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], uint32_t channels, uint32_t samples, uint32_t bytes_per_sample)
+{
+	const size_t bytes_needed = (size_t)channels * (size_t)samples * (size_t)bytes_per_sample;
+
+	/* overflow check */
+	if ((size_t)channels > SIZE_MAX / (size_t)bytes_per_sample)
+		return false;
+	if ((size_t)channels * (size_t)bytes_per_sample > SIZE_MAX / (size_t)samples)
+		return false;
+
+	if (ctx->capacity < bytes_needed) {
+		if (0 == (ctx->internal_buf.p8 = safe_realloc_(ctx->internal_buf.p8, bytes_needed))) {
+			if (0 == (ctx->internal_buf.p8 = safe_malloc_(bytes_needed))) {
+				ctx->capacity = 0;
+				return false;
+			}
+		}
+		ctx->capacity = bytes_needed;
+	}
+
+	format_input_(&ctx->internal_buf, signal, channels, samples, bytes_per_sample);
+
+	FLAC__MD5Update(ctx, ctx->internal_buf.p8, bytes_needed);
+
+	return true;
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/memory.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/memory.c
new file mode 100644
index 00000000..d0aa8377
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/memory.c
@@ -0,0 +1,248 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+
+#include "private/memory.h"
+#include "FLAC/assert.h"
+#include "share/compat.h"
+#include "share/alloc.h"
+
+void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address)
+{
+	void *x;
+
+	FLAC__ASSERT(0 != aligned_address);
+
+#ifdef FLAC__ALIGN_MALLOC_DATA
+	/* align on 32-byte (256-bit) boundary */
+	x = safe_malloc_add_2op_(bytes, /*+*/31L);
+	*aligned_address = (void*)(((uintptr_t)x + 31L) & -32L);
+#else
+	x = safe_malloc_(bytes);
+	*aligned_address = x;
+#endif
+	return x;
+}
+
+FLAC__bool FLAC__memory_alloc_aligned_int32_array(size_t elements, FLAC__int32 **unaligned_pointer, FLAC__int32 **aligned_pointer)
+{
+	FLAC__int32 *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		FLAC__int32 *pa; /* aligned pointer */
+		void        *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+FLAC__bool FLAC__memory_alloc_aligned_uint32_array(size_t elements, FLAC__uint32 **unaligned_pointer, FLAC__uint32 **aligned_pointer)
+{
+	FLAC__uint32 *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		FLAC__uint32 *pa; /* aligned pointer */
+		void         *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+FLAC__bool FLAC__memory_alloc_aligned_int64_array(size_t elements, FLAC__int64 **unaligned_pointer, FLAC__int64 **aligned_pointer)
+{
+	FLAC__int64 *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		FLAC__int64 *pa; /* aligned pointer */
+		void         *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+FLAC__bool FLAC__memory_alloc_aligned_uint64_array(size_t elements, FLAC__uint64 **unaligned_pointer, FLAC__uint64 **aligned_pointer)
+{
+	FLAC__uint64 *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		FLAC__uint64 *pa; /* aligned pointer */
+		void         *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+FLAC__bool FLAC__memory_alloc_aligned_unsigned_array(size_t elements, uint32_t **unaligned_pointer, uint32_t **aligned_pointer)
+{
+	uint32_t *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		uint32_t *pa; /* aligned pointer */
+		void     *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+FLAC__bool FLAC__memory_alloc_aligned_real_array(size_t elements, FLAC__real **unaligned_pointer, FLAC__real **aligned_pointer)
+{
+	FLAC__real *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		FLAC__real *pa; /* aligned pointer */
+		void       *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+#endif
+
+void *safe_malloc_mul_2op_p(size_t size1, size_t size2)
+{
+	if(!size1 || !size2)
+		return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
+	if(size1 > SIZE_MAX / size2)
+		return 0;
+	return malloc(size1*size2);
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/metadata_iterators.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/metadata_iterators.c
new file mode 100644
index 00000000..168a3fbc
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/metadata_iterators.c
@@ -0,0 +1,3525 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include <sys/stat.h> /* for stat(), maybe chmod() */
+
+#include "private/metadata.h"
+
+#include "FLAC/assert.h"
+#include "FLAC/stream_decoder.h"
+#include "share/alloc.h"
+#include "share/compat.h"
+#include "share/macros.h"
+#include "share/safe_str.h"
+#include "private/macros.h"
+#include "private/memory.h"
+
+/* Alias the first (in share/alloc.h) to the second (in src/libFLAC/memory.c). */
+#define safe_malloc_mul_2op_ safe_malloc_mul_2op_p
+
+/****************************************************************************
+ *
+ * Local function declarations
+ *
+ ***************************************************************************/
+
+static void pack_uint32_(FLAC__uint32 val, FLAC__byte *b, uint32_t bytes);
+static void pack_uint32_little_endian_(FLAC__uint32 val, FLAC__byte *b, uint32_t bytes);
+static void pack_uint64_(FLAC__uint64 val, FLAC__byte *b, uint32_t bytes);
+static FLAC__uint32 unpack_uint32_(FLAC__byte *b, uint32_t bytes);
+static FLAC__uint32 unpack_uint32_little_endian_(FLAC__byte *b, uint32_t bytes);
+static FLAC__uint64 unpack_uint64_(FLAC__byte *b, uint32_t bytes);
+
+static FLAC__bool read_metadata_block_header_(FLAC__Metadata_SimpleIterator *iterator);
+static FLAC__bool read_metadata_block_data_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block);
+static FLAC__bool read_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__bool *is_last, FLAC__MetadataType *type, uint32_t *length);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata *block);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_StreamInfo *block);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_Padding *block, uint32_t block_length);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Application *block, uint32_t block_length);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_SeekTable *block, uint32_t block_length);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_entry_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment_Entry *entry, uint32_t max_length);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_VorbisComment *block, uint32_t block_length);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_track_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet_Track *track);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet *block);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Picture *block);
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Unknown *block, uint32_t block_length);
+
+static FLAC__bool write_metadata_block_header_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block);
+static FLAC__bool write_metadata_block_data_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block);
+static FLAC__bool write_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block);
+static FLAC__bool write_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block);
+static FLAC__bool write_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_StreamInfo *block);
+static FLAC__bool write_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Padding *block, uint32_t block_length);
+static FLAC__bool write_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Application *block, uint32_t block_length);
+static FLAC__bool write_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_SeekTable *block);
+static FLAC__bool write_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_VorbisComment *block);
+static FLAC__bool write_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_CueSheet *block);
+static FLAC__bool write_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Picture *block);
+static FLAC__bool write_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Unknown *block, uint32_t block_length);
+
+static FLAC__bool write_metadata_block_stationary_(FLAC__Metadata_SimpleIterator *iterator, const FLAC__StreamMetadata *block);
+static FLAC__bool write_metadata_block_stationary_with_padding_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, uint32_t padding_length, FLAC__bool padding_is_last);
+static FLAC__bool rewrite_whole_file_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool append);
+
+static void simple_iterator_push_(FLAC__Metadata_SimpleIterator *iterator);
+static FLAC__bool simple_iterator_pop_(FLAC__Metadata_SimpleIterator *iterator);
+
+static uint32_t seek_to_first_metadata_block_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb);
+static uint32_t seek_to_first_metadata_block_(FILE *f);
+
+static FLAC__bool simple_iterator_copy_file_prefix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, FLAC__bool append);
+static FLAC__bool simple_iterator_copy_file_postfix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, int fixup_is_last_code, FLAC__off_t fixup_is_last_flag_offset, FLAC__bool backup);
+
+static FLAC__bool copy_n_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status);
+static FLAC__bool copy_n_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status);
+static FLAC__bool copy_remaining_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__Metadata_SimpleIteratorStatus *status);
+static FLAC__bool copy_remaining_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__Metadata_SimpleIteratorStatus *status);
+
+static FLAC__bool open_tempfile_(const char *filename, const char *tempfile_path_prefix, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status);
+static FLAC__bool transport_tempfile_(const char *filename, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status);
+static void cleanup_tempfile_(FILE **tempfile, char **tempfilename);
+
+static FLAC__bool get_file_stats_(const char *filename, struct flac_stat_s *stats);
+static void set_file_stats_(const char *filename, struct flac_stat_s *stats);
+
+static int fseek_wrapper_(FLAC__IOHandle handle, FLAC__int64 offset, int whence);
+static FLAC__int64 ftell_wrapper_(FLAC__IOHandle handle);
+
+static FLAC__Metadata_ChainStatus get_equivalent_status_(FLAC__Metadata_SimpleIteratorStatus status);
+
+
+#ifdef FLAC__VALGRIND_TESTING
+static size_t local__fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
+{
+	size_t ret = fwrite(ptr, size, nmemb, stream);
+	if(!ferror(stream))
+		fflush(stream);
+	return ret;
+}
+#else
+#define local__fwrite fwrite
+#endif
+
+/****************************************************************************
+ *
+ * Level 0 implementation
+ *
+ ***************************************************************************/
+
+static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
+static void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
+static void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
+
+typedef struct {
+	FLAC__bool got_error;
+	FLAC__StreamMetadata *object;
+} level0_client_data;
+
+static FLAC__StreamMetadata *get_one_metadata_block_(const char *filename, FLAC__MetadataType type)
+{
+	level0_client_data cd;
+	FLAC__StreamDecoder *decoder;
+
+	FLAC__ASSERT(0 != filename);
+
+	cd.got_error = false;
+	cd.object = 0;
+
+	decoder = FLAC__stream_decoder_new();
+
+	if(0 == decoder)
+		return 0;
+
+	FLAC__stream_decoder_set_md5_checking(decoder, false);
+	FLAC__stream_decoder_set_metadata_ignore_all(decoder);
+	FLAC__stream_decoder_set_metadata_respond(decoder, type);
+
+	if(FLAC__stream_decoder_init_file(decoder, filename, write_callback_, metadata_callback_, error_callback_, &cd) != FLAC__STREAM_DECODER_INIT_STATUS_OK || cd.got_error) {
+		(void)FLAC__stream_decoder_finish(decoder);
+		FLAC__stream_decoder_delete(decoder);
+		return 0;
+	}
+
+	if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder) || cd.got_error) {
+		(void)FLAC__stream_decoder_finish(decoder);
+		FLAC__stream_decoder_delete(decoder);
+		if(0 != cd.object)
+			FLAC__metadata_object_delete(cd.object);
+		return 0;
+	}
+
+	(void)FLAC__stream_decoder_finish(decoder);
+	FLAC__stream_decoder_delete(decoder);
+
+	return cd.object;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_get_streaminfo(const char *filename, FLAC__StreamMetadata *streaminfo)
+{
+	FLAC__StreamMetadata *object;
+
+	FLAC__ASSERT(0 != filename);
+	FLAC__ASSERT(0 != streaminfo);
+
+	object = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_STREAMINFO);
+
+	if (object) {
+		/* can just copy the contents since STREAMINFO has no internal structure */
+		*streaminfo = *object;
+		FLAC__metadata_object_delete(object);
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+
+FLAC_API FLAC__bool FLAC__metadata_get_tags(const char *filename, FLAC__StreamMetadata **tags)
+{
+	FLAC__ASSERT(0 != filename);
+	FLAC__ASSERT(0 != tags);
+
+	*tags = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_VORBIS_COMMENT);
+
+	return 0 != *tags;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_get_cuesheet(const char *filename, FLAC__StreamMetadata **cuesheet)
+{
+	FLAC__ASSERT(0 != filename);
+	FLAC__ASSERT(0 != cuesheet);
+
+	*cuesheet = get_one_metadata_block_(filename, FLAC__METADATA_TYPE_CUESHEET);
+
+	return 0 != *cuesheet;
+}
+
+FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
+{
+	(void)decoder, (void)frame, (void)buffer, (void)client_data;
+
+	return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
+}
+
+void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+	level0_client_data *cd = (level0_client_data *)client_data;
+	(void)decoder;
+
+	/*
+	 * we assume we only get here when the one metadata block we were
+	 * looking for was passed to us
+	 */
+	if(!cd->got_error && 0 == cd->object) {
+		if(0 == (cd->object = FLAC__metadata_object_clone(metadata)))
+			cd->got_error = true;
+	}
+}
+
+void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
+{
+	level0_client_data *cd = (level0_client_data *)client_data;
+	(void)decoder;
+
+	if(status != FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC)
+		cd->got_error = true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_get_picture(const char *filename, FLAC__StreamMetadata **picture, FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, uint32_t max_width, uint32_t max_height, uint32_t max_depth, uint32_t max_colors)
+{
+	FLAC__Metadata_SimpleIterator *it;
+	FLAC__uint64 max_area_seen = 0;
+	FLAC__uint64 max_depth_seen = 0;
+
+	FLAC__ASSERT(0 != filename);
+	FLAC__ASSERT(0 != picture);
+
+	*picture = 0;
+
+	it = FLAC__metadata_simple_iterator_new();
+	if(0 == it)
+		return false;
+	if(!FLAC__metadata_simple_iterator_init(it, filename, /*read_only=*/true, /*preserve_file_stats=*/true)) {
+		FLAC__metadata_simple_iterator_delete(it);
+		return false;
+	}
+	do {
+		if(FLAC__metadata_simple_iterator_get_block_type(it) == FLAC__METADATA_TYPE_PICTURE) {
+			FLAC__StreamMetadata *obj = FLAC__metadata_simple_iterator_get_block(it);
+			if(0 != obj) {
+				FLAC__uint64 area = (FLAC__uint64)obj->data.picture.width * (FLAC__uint64)obj->data.picture.height;
+
+				/* check constraints */
+				if(
+					(type == (FLAC__StreamMetadata_Picture_Type)(-1) || type == obj->data.picture.type) &&
+					(mime_type == 0 || !strcmp(mime_type, obj->data.picture.mime_type)) &&
+					(description == 0 || !strcmp((const char *)description, (const char *)obj->data.picture.description)) &&
+					obj->data.picture.width <= max_width &&
+					obj->data.picture.height <= max_height &&
+					obj->data.picture.depth <= max_depth &&
+					obj->data.picture.colors <= max_colors &&
+					(area > max_area_seen || (area == max_area_seen && obj->data.picture.depth > max_depth_seen))
+				) {
+					if(*picture)
+						FLAC__metadata_object_delete(*picture);
+					*picture = obj;
+					max_area_seen = area;
+					max_depth_seen = obj->data.picture.depth;
+				}
+				else {
+					FLAC__metadata_object_delete(obj);
+				}
+			}
+		}
+	} while(FLAC__metadata_simple_iterator_next(it));
+
+	FLAC__metadata_simple_iterator_delete(it);
+
+	return (0 != *picture);
+}
+
+
+/****************************************************************************
+ *
+ * Level 1 implementation
+ *
+ ***************************************************************************/
+
+#define SIMPLE_ITERATOR_MAX_PUSH_DEPTH (1+4)
+/* 1 for initial offset, +4 for our own personal use */
+
+struct FLAC__Metadata_SimpleIterator {
+	FILE *file;
+	char *filename, *tempfile_path_prefix;
+	struct flac_stat_s stats;
+	FLAC__bool has_stats;
+	FLAC__bool is_writable;
+	FLAC__Metadata_SimpleIteratorStatus status;
+	FLAC__off_t offset[SIMPLE_ITERATOR_MAX_PUSH_DEPTH];
+	FLAC__off_t first_offset; /* this is the offset to the STREAMINFO block */
+	uint32_t depth;
+	/* this is the metadata block header of the current block we are pointing to: */
+	FLAC__bool is_last;
+	FLAC__MetadataType type;
+	uint32_t length;
+};
+
+FLAC_API const char * const FLAC__Metadata_SimpleIteratorStatusString[] = {
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR",
+	"FLAC__METADATA_SIMPLE_ITERATOR_STATUS_INTERNAL_ERROR"
+};
+
+
+FLAC_API FLAC__Metadata_SimpleIterator *FLAC__metadata_simple_iterator_new(void)
+{
+	FLAC__Metadata_SimpleIterator *iterator = calloc(1, sizeof(FLAC__Metadata_SimpleIterator));
+
+	if(0 != iterator) {
+		iterator->file = 0;
+		iterator->filename = 0;
+		iterator->tempfile_path_prefix = 0;
+		iterator->has_stats = false;
+		iterator->is_writable = false;
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+		iterator->first_offset = iterator->offset[0] = -1;
+		iterator->depth = 0;
+	}
+
+	return iterator;
+}
+
+static void simple_iterator_free_guts_(FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+
+	if(0 != iterator->file) {
+		fclose(iterator->file);
+		iterator->file = 0;
+		if(iterator->has_stats)
+			set_file_stats_(iterator->filename, &iterator->stats);
+	}
+	if(0 != iterator->filename) {
+		free(iterator->filename);
+		iterator->filename = 0;
+	}
+	if(0 != iterator->tempfile_path_prefix) {
+		free(iterator->tempfile_path_prefix);
+		iterator->tempfile_path_prefix = 0;
+	}
+}
+
+FLAC_API void FLAC__metadata_simple_iterator_delete(FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+
+	simple_iterator_free_guts_(iterator);
+	free(iterator);
+}
+
+FLAC_API FLAC__Metadata_SimpleIteratorStatus FLAC__metadata_simple_iterator_status(FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__Metadata_SimpleIteratorStatus status;
+
+	FLAC__ASSERT(0 != iterator);
+
+	status = iterator->status;
+	iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+	return status;
+}
+
+static FLAC__bool simple_iterator_prime_input_(FLAC__Metadata_SimpleIterator *iterator, FLAC__bool read_only)
+{
+	uint32_t ret;
+
+	FLAC__ASSERT(0 != iterator);
+
+	if(read_only || 0 == (iterator->file = flac_fopen(iterator->filename, "r+b"))) {
+		iterator->is_writable = false;
+		if(read_only || errno == EACCES) {
+			if(0 == (iterator->file = flac_fopen(iterator->filename, "rb"))) {
+				iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE;
+				return false;
+			}
+		}
+		else {
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE;
+			return false;
+		}
+	}
+	else {
+		iterator->is_writable = true;
+	}
+
+	ret = seek_to_first_metadata_block_(iterator->file);
+	switch(ret) {
+		case 0:
+			iterator->depth = 0;
+			iterator->first_offset = iterator->offset[iterator->depth] = ftello(iterator->file);
+			ret = read_metadata_block_header_(iterator);
+			/* The first metadata block must be a streaminfo. If this is not the
+			 * case, the file is invalid and assumptions made elsewhere in the
+			 * code are invalid */
+			if(iterator->type != FLAC__METADATA_TYPE_STREAMINFO) {
+				iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA;
+				return false;
+			}
+			return ret;
+		case 1:
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+			return false;
+		case 2:
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+			return false;
+		case 3:
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE;
+			return false;
+		default:
+			FLAC__ASSERT(0);
+			return false;
+	}
+}
+
+#if 0
+@@@ If we decide to finish implementing this, put this comment back in metadata.h
+/*
+ * The 'tempfile_path_prefix' allows you to specify a directory where
+ * tempfiles should go.  Remember that if your metadata edits cause the
+ * FLAC file to grow, the entire file will have to be rewritten.  If
+ * 'tempfile_path_prefix' is NULL, the temp file will be written in the
+ * same directory as the original FLAC file.  This makes replacing the
+ * original with the tempfile fast but requires extra space in the same
+ * partition for the tempfile.  If space is a problem, you can pass a
+ * directory name belonging to a different partition in
+ * 'tempfile_path_prefix'.  Note that you should use the forward slash
+ * '/' as the directory separator.  A trailing slash is not needed; it
+ * will be added automatically.
+ */
+FLAC__bool FLAC__metadata_simple_iterator_init(FLAC__Metadata_SimpleIterator *iterator, const char *filename, FLAC__bool preserve_file_stats, const char *tempfile_path_prefix);
+#endif
+
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_init(FLAC__Metadata_SimpleIterator *iterator, const char *filename, FLAC__bool read_only, FLAC__bool preserve_file_stats)
+{
+	const char *tempfile_path_prefix = 0; /*@@@ search for comments near 'flac_rename(...)' for what it will take to finish implementing this */
+
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != filename);
+
+	simple_iterator_free_guts_(iterator);
+
+	if(!read_only && preserve_file_stats)
+		iterator->has_stats = get_file_stats_(filename, &iterator->stats);
+
+	if(0 == (iterator->filename = strdup(filename))) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+	if(0 != tempfile_path_prefix && 0 == (iterator->tempfile_path_prefix = strdup(tempfile_path_prefix))) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	return simple_iterator_prime_input_(iterator, read_only);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_writable(const FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+
+	return iterator->is_writable;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_next(FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+
+	if(iterator->is_last)
+		return false;
+
+	if(0 != fseeko(iterator->file, iterator->length, SEEK_CUR)) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+		return false;
+	}
+
+	iterator->offset[iterator->depth] = ftello(iterator->file);
+
+	return read_metadata_block_header_(iterator);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_prev(FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__off_t this_offset;
+
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+
+	if(iterator->offset[iterator->depth] == iterator->first_offset)
+		return false;
+
+	if(0 != fseeko(iterator->file, iterator->first_offset, SEEK_SET)) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+		return false;
+	}
+	this_offset = iterator->first_offset;
+	if(!read_metadata_block_header_(iterator))
+		return false;
+
+	/* we ignore any error from ftello() and catch it in fseeko() */
+	while(ftello(iterator->file) + (FLAC__off_t)iterator->length < iterator->offset[iterator->depth]) {
+		if(0 != fseeko(iterator->file, iterator->length, SEEK_CUR)) {
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+			return false;
+		}
+		this_offset = ftello(iterator->file);
+		if(!read_metadata_block_header_(iterator))
+			return false;
+	}
+
+	iterator->offset[iterator->depth] = this_offset;
+
+	return true;
+}
+
+/*@@@@add to tests*/
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_is_last(const FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+
+	return iterator->is_last;
+}
+
+/*@@@@add to tests*/
+FLAC_API off_t FLAC__metadata_simple_iterator_get_block_offset(const FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+
+	return (off_t)iterator->offset[iterator->depth];
+}
+
+FLAC_API FLAC__MetadataType FLAC__metadata_simple_iterator_get_block_type(const FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+
+	return iterator->type;
+}
+
+/*@@@@add to tests*/
+FLAC_API uint32_t FLAC__metadata_simple_iterator_get_block_length(const FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+
+	return iterator->length;
+}
+
+/*@@@@add to tests*/
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_get_application_id(FLAC__Metadata_SimpleIterator *iterator, FLAC__byte *id)
+{
+	const uint32_t id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
+
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+	FLAC__ASSERT(0 != id);
+
+	if(iterator->type != FLAC__METADATA_TYPE_APPLICATION) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
+		return false;
+	}
+
+	if(fread(id, 1, id_bytes, iterator->file) != id_bytes) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+		return false;
+	}
+
+	/* back up */
+	if(0 != fseeko(iterator->file, -((int)id_bytes), SEEK_CUR)) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+		return false;
+	}
+
+	return true;
+}
+
+FLAC_API FLAC__StreamMetadata *FLAC__metadata_simple_iterator_get_block(FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__StreamMetadata *block = FLAC__metadata_object_new(iterator->type);
+
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+
+	if(0 != block) {
+		block->is_last = iterator->is_last;
+		block->length = iterator->length;
+
+		if(!read_metadata_block_data_(iterator, block)) {
+			FLAC__metadata_object_delete(block);
+			return 0;
+		}
+
+		/* back up to the beginning of the block data to stay consistent */
+		if(0 != fseeko(iterator->file, iterator->offset[iterator->depth] + FLAC__STREAM_METADATA_HEADER_LENGTH, SEEK_SET)) {
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+			FLAC__metadata_object_delete(block);
+			return 0;
+		}
+	}
+	else
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+
+	return block;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_set_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding)
+{
+	FLAC__ASSERT_DECLARATION(FLAC__off_t debug_target_offset = iterator->offset[iterator->depth];)
+	FLAC__bool ret;
+
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+	FLAC__ASSERT(0 != block);
+
+	if(!iterator->is_writable) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE;
+		return false;
+	}
+
+	if(iterator->type == FLAC__METADATA_TYPE_STREAMINFO || block->type == FLAC__METADATA_TYPE_STREAMINFO) {
+		if(iterator->type != block->type) {
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
+			return false;
+		}
+	}
+
+	block->is_last = iterator->is_last;
+
+	if(iterator->length == block->length)
+		return write_metadata_block_stationary_(iterator, block);
+	else if(iterator->length > block->length) {
+		if(use_padding && iterator->length >= FLAC__STREAM_METADATA_HEADER_LENGTH + block->length) {
+			ret = write_metadata_block_stationary_with_padding_(iterator, block, iterator->length - FLAC__STREAM_METADATA_HEADER_LENGTH - block->length, block->is_last);
+			FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
+			FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
+			return ret;
+		}
+		else {
+			ret = rewrite_whole_file_(iterator, block, /*append=*/false);
+			FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
+			FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
+			return ret;
+		}
+	}
+	else /* iterator->length < block->length */ {
+		uint32_t padding_leftover = 0;
+		FLAC__bool padding_is_last = false;
+		if(use_padding) {
+			/* first see if we can even use padding */
+			if(iterator->is_last) {
+				use_padding = false;
+			}
+			else {
+				const uint32_t extra_padding_bytes_required = block->length - iterator->length;
+				simple_iterator_push_(iterator);
+				if(!FLAC__metadata_simple_iterator_next(iterator)) {
+					(void)simple_iterator_pop_(iterator);
+					return false;
+				}
+				if(iterator->type != FLAC__METADATA_TYPE_PADDING) {
+					use_padding = false;
+				}
+				else {
+					if(FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length == extra_padding_bytes_required) {
+						padding_leftover = 0;
+						block->is_last = iterator->is_last;
+					}
+					else if(iterator->length < extra_padding_bytes_required)
+						use_padding = false;
+					else {
+						padding_leftover = FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length - extra_padding_bytes_required;
+						padding_is_last = iterator->is_last;
+						block->is_last = false;
+					}
+				}
+				if(!simple_iterator_pop_(iterator))
+					return false;
+			}
+		}
+		if(use_padding) {
+			if(padding_leftover == 0) {
+				ret = write_metadata_block_stationary_(iterator, block);
+				FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
+				FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
+				return ret;
+			}
+			else {
+				FLAC__ASSERT(padding_leftover >= FLAC__STREAM_METADATA_HEADER_LENGTH);
+				ret = write_metadata_block_stationary_with_padding_(iterator, block, padding_leftover - FLAC__STREAM_METADATA_HEADER_LENGTH, padding_is_last);
+				FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
+				FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
+				return ret;
+			}
+		}
+		else {
+			ret = rewrite_whole_file_(iterator, block, /*append=*/false);
+			FLAC__ASSERT(!ret || iterator->offset[iterator->depth] == debug_target_offset);
+			FLAC__ASSERT(!ret || ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
+			return ret;
+		}
+	}
+}
+
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_insert_block_after(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool use_padding)
+{
+	uint32_t padding_leftover = 0;
+	FLAC__bool padding_is_last = false;
+
+	FLAC__ASSERT_DECLARATION(FLAC__off_t debug_target_offset = iterator->offset[iterator->depth] + FLAC__STREAM_METADATA_HEADER_LENGTH + iterator->length;)
+	FLAC__bool ret;
+
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+	FLAC__ASSERT(0 != block);
+
+	if(!iterator->is_writable) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE;
+		return false;
+	}
+
+	if(block->type == FLAC__METADATA_TYPE_STREAMINFO) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
+		return false;
+	}
+
+	block->is_last = iterator->is_last;
+
+	if(use_padding) {
+		/* first see if we can even use padding */
+		if(iterator->is_last) {
+			use_padding = false;
+		}
+		else {
+			simple_iterator_push_(iterator);
+			if(!FLAC__metadata_simple_iterator_next(iterator)) {
+				(void)simple_iterator_pop_(iterator);
+				return false;
+			}
+			if(iterator->type != FLAC__METADATA_TYPE_PADDING) {
+				use_padding = false;
+			}
+			else {
+				if(iterator->length == block->length) {
+					padding_leftover = 0;
+					block->is_last = iterator->is_last;
+				}
+				else if(iterator->length < FLAC__STREAM_METADATA_HEADER_LENGTH + block->length)
+					use_padding = false;
+				else {
+					padding_leftover = iterator->length - block->length;
+					padding_is_last = iterator->is_last;
+					block->is_last = false;
+				}
+			}
+			if(!simple_iterator_pop_(iterator))
+				return false;
+		}
+	}
+	if(use_padding) {
+		/* move to the next block, which is suitable padding */
+		if(!FLAC__metadata_simple_iterator_next(iterator))
+			return false;
+		if(padding_leftover == 0) {
+			ret = write_metadata_block_stationary_(iterator, block);
+			FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
+			FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
+			return ret;
+		}
+		else {
+			FLAC__ASSERT(padding_leftover >= FLAC__STREAM_METADATA_HEADER_LENGTH);
+			ret = write_metadata_block_stationary_with_padding_(iterator, block, padding_leftover - FLAC__STREAM_METADATA_HEADER_LENGTH, padding_is_last);
+			FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
+			FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
+			return ret;
+		}
+	}
+	else {
+		ret = rewrite_whole_file_(iterator, block, /*append=*/true);
+		FLAC__ASSERT(iterator->offset[iterator->depth] == debug_target_offset);
+		FLAC__ASSERT(ftello(iterator->file) == debug_target_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
+		return ret;
+	}
+}
+
+FLAC_API FLAC__bool FLAC__metadata_simple_iterator_delete_block(FLAC__Metadata_SimpleIterator *iterator, FLAC__bool use_padding)
+{
+	FLAC__ASSERT_DECLARATION(FLAC__off_t debug_target_offset = iterator->offset[iterator->depth];)
+	FLAC__bool ret;
+
+	if(!iterator->is_writable) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE;
+		return false;
+	}
+
+	if(iterator->type == FLAC__METADATA_TYPE_STREAMINFO) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT;
+		return false;
+	}
+
+	if(use_padding) {
+		FLAC__StreamMetadata *padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
+		if(0 == padding) {
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+			return false;
+		}
+		padding->length = iterator->length;
+		if(!FLAC__metadata_simple_iterator_set_block(iterator, padding, false)) {
+			FLAC__metadata_object_delete(padding);
+			return false;
+		}
+		FLAC__metadata_object_delete(padding);
+		if(!FLAC__metadata_simple_iterator_prev(iterator))
+			return false;
+		FLAC__ASSERT(iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length == debug_target_offset);
+		FLAC__ASSERT(ftello(iterator->file) + (FLAC__off_t)iterator->length == debug_target_offset);
+		return true;
+	}
+	else {
+		ret = rewrite_whole_file_(iterator, 0, /*append=*/false);
+		FLAC__ASSERT(iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length == debug_target_offset);
+		FLAC__ASSERT(ftello(iterator->file) + (FLAC__off_t)iterator->length == debug_target_offset);
+		return ret;
+	}
+}
+
+
+
+/****************************************************************************
+ *
+ * Level 2 implementation
+ *
+ ***************************************************************************/
+
+
+typedef struct FLAC__Metadata_Node {
+	FLAC__StreamMetadata *data;
+	struct FLAC__Metadata_Node *prev, *next;
+} FLAC__Metadata_Node;
+
+struct FLAC__Metadata_Chain {
+	char *filename; /* will be NULL if using callbacks */
+	FLAC__bool is_ogg;
+	FLAC__Metadata_Node *head;
+	FLAC__Metadata_Node *tail;
+	uint32_t nodes;
+	FLAC__Metadata_ChainStatus status;
+	FLAC__off_t first_offset, last_offset;
+	/*
+	 * This is the length of the chain initially read from the FLAC file.
+	 * it is used to compare against the current length to decide whether
+	 * or not the whole file has to be rewritten.
+	 */
+	FLAC__off_t initial_length;
+	/* @@@ hacky, these are currently only needed by ogg reader */
+	FLAC__IOHandle handle;
+	FLAC__IOCallback_Read read_cb;
+};
+
+struct FLAC__Metadata_Iterator {
+	FLAC__Metadata_Chain *chain;
+	FLAC__Metadata_Node *current;
+};
+
+FLAC_API const char * const FLAC__Metadata_ChainStatusString[] = {
+	"FLAC__METADATA_CHAIN_STATUS_OK",
+	"FLAC__METADATA_CHAIN_STATUS_ILLEGAL_INPUT",
+	"FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE",
+	"FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE",
+	"FLAC__METADATA_CHAIN_STATUS_NOT_WRITABLE",
+	"FLAC__METADATA_CHAIN_STATUS_BAD_METADATA",
+	"FLAC__METADATA_CHAIN_STATUS_READ_ERROR",
+	"FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR",
+	"FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR",
+	"FLAC__METADATA_CHAIN_STATUS_RENAME_ERROR",
+	"FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR",
+	"FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR",
+	"FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR",
+	"FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS",
+	"FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH",
+	"FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL"
+};
+
+
+static FLAC__Metadata_Node *node_new_(void)
+{
+	return calloc(1, sizeof(FLAC__Metadata_Node));
+}
+
+static void node_delete_(FLAC__Metadata_Node *node)
+{
+	FLAC__ASSERT(0 != node);
+	if(0 != node->data)
+		FLAC__metadata_object_delete(node->data);
+	free(node);
+}
+
+static void chain_init_(FLAC__Metadata_Chain *chain)
+{
+	FLAC__ASSERT(0 != chain);
+
+	chain->filename = 0;
+	chain->is_ogg = false;
+	chain->head = chain->tail = 0;
+	chain->nodes = 0;
+	chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
+	chain->initial_length = 0;
+	chain->read_cb = 0;
+}
+
+static void chain_clear_(FLAC__Metadata_Chain *chain)
+{
+	FLAC__Metadata_Node *node, *next;
+
+	FLAC__ASSERT(0 != chain);
+
+	for(node = chain->head; node; ) {
+		next = node->next;
+		node_delete_(node);
+		node = next;
+	}
+
+	if(0 != chain->filename)
+		free(chain->filename);
+
+	chain_init_(chain);
+}
+
+static void chain_append_node_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
+{
+	FLAC__ASSERT(0 != chain);
+	FLAC__ASSERT(0 != node);
+	FLAC__ASSERT(0 != node->data);
+
+	node->next = node->prev = 0;
+	node->data->is_last = true;
+	if(0 != chain->tail)
+		chain->tail->data->is_last = false;
+
+	if(0 == chain->head)
+		chain->head = node;
+	else {
+		FLAC__ASSERT(0 != chain->tail);
+		chain->tail->next = node;
+		node->prev = chain->tail;
+	}
+	chain->tail = node;
+	chain->nodes++;
+}
+
+static void chain_remove_node_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
+{
+	FLAC__ASSERT(0 != chain);
+	FLAC__ASSERT(0 != node);
+
+	if(node == chain->head)
+		chain->head = node->next;
+	else
+		node->prev->next = node->next;
+
+	if(node == chain->tail)
+		chain->tail = node->prev;
+	else
+		node->next->prev = node->prev;
+
+	if(0 != chain->tail)
+		chain->tail->data->is_last = true;
+
+	chain->nodes--;
+}
+
+static void chain_delete_node_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
+{
+	chain_remove_node_(chain, node);
+	node_delete_(node);
+}
+
+static FLAC__off_t chain_calculate_length_(FLAC__Metadata_Chain *chain)
+{
+	const FLAC__Metadata_Node *node;
+	FLAC__off_t length = 0;
+	for(node = chain->head; node; node = node->next)
+		length += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
+	return length;
+}
+
+static void iterator_insert_node_(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Node *node)
+{
+	FLAC__ASSERT(0 != node);
+	FLAC__ASSERT(0 != node->data);
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->current);
+	FLAC__ASSERT(0 != iterator->chain);
+	FLAC__ASSERT(0 != iterator->chain->head);
+	FLAC__ASSERT(0 != iterator->chain->tail);
+
+	node->data->is_last = false;
+
+	node->prev = iterator->current->prev;
+	node->next = iterator->current;
+
+	if(0 == node->prev)
+		iterator->chain->head = node;
+	else
+		node->prev->next = node;
+
+	iterator->current->prev = node;
+
+	iterator->chain->nodes++;
+}
+
+static void iterator_insert_node_after_(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Node *node)
+{
+	FLAC__ASSERT(0 != node);
+	FLAC__ASSERT(0 != node->data);
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->current);
+	FLAC__ASSERT(0 != iterator->chain);
+	FLAC__ASSERT(0 != iterator->chain->head);
+	FLAC__ASSERT(0 != iterator->chain->tail);
+
+	iterator->current->data->is_last = false;
+
+	node->prev = iterator->current;
+	node->next = iterator->current->next;
+
+	if(0 == node->next)
+		iterator->chain->tail = node;
+	else
+		node->next->prev = node;
+
+	node->prev->next = node;
+
+	iterator->chain->tail->data->is_last = true;
+
+	iterator->chain->nodes++;
+}
+
+/* return true iff node and node->next are both padding */
+static FLAC__bool chain_merge_adjacent_padding_(FLAC__Metadata_Chain *chain, FLAC__Metadata_Node *node)
+{
+	if(node->data->type == FLAC__METADATA_TYPE_PADDING && 0 != node->next && node->next->data->type == FLAC__METADATA_TYPE_PADDING) {
+		const uint32_t growth = FLAC__STREAM_METADATA_HEADER_LENGTH + node->next->data->length;
+		node->data->length += growth; /* new block size can be greater than max metadata block size, but it'll be fixed later in chain_prepare_for_write_() */
+
+		chain_delete_node_(chain, node->next);
+		return true;
+	}
+	else
+		return false;
+}
+
+#if defined(_MSC_VER)
+// silence three MSVC warnings 'conversion from 'conversion from 'const __int64' to 'uint32_t', possible loss of data'
+#pragma warning ( disable : 4244 )
+#endif
+
+/* Returns the new length of the chain, or 0 if there was an error. */
+/* WATCHOUT: This can get called multiple times before a write, so
+ * it should still work when this happens.
+ */
+/* WATCHOUT: Make sure to also update the logic in
+ * FLAC__metadata_chain_check_if_tempfile_needed() if the logic here changes.
+ */
+static FLAC__off_t chain_prepare_for_write_(FLAC__Metadata_Chain *chain, FLAC__bool use_padding)
+{
+	FLAC__off_t current_length = chain_calculate_length_(chain);
+
+	if(use_padding) {
+		/* if the metadata shrank and the last block is padding, we just extend the last padding block */
+		if(current_length < chain->initial_length && chain->tail->data->type == FLAC__METADATA_TYPE_PADDING) {
+			const FLAC__off_t delta = chain->initial_length - current_length;
+			chain->tail->data->length += delta;
+			current_length += delta;
+			FLAC__ASSERT(current_length == chain->initial_length);
+		}
+		/* if the metadata shrank more than 4 bytes then there's room to add another padding block */
+		else if(current_length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH <= chain->initial_length) {
+			FLAC__StreamMetadata *padding;
+			FLAC__Metadata_Node *node;
+			if(0 == (padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING))) {
+				chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+				return 0;
+			}
+			padding->length = chain->initial_length - (FLAC__STREAM_METADATA_HEADER_LENGTH + current_length);
+			if(0 == (node = node_new_())) {
+				FLAC__metadata_object_delete(padding);
+				chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+				return 0;
+			}
+			node->data = padding;
+			chain_append_node_(chain, node);
+			current_length = chain_calculate_length_(chain);
+			FLAC__ASSERT(current_length == chain->initial_length);
+		}
+		/* if the metadata grew but the last block is padding, try cutting the padding to restore the original length so we don't have to rewrite the whole file */
+		else if(current_length > chain->initial_length) {
+			const FLAC__off_t delta = current_length - chain->initial_length;
+			if(chain->tail->data->type == FLAC__METADATA_TYPE_PADDING) {
+				/* if the delta is exactly the size of the last padding block, remove the padding block */
+				if((FLAC__off_t)chain->tail->data->length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH == delta) {
+					chain_delete_node_(chain, chain->tail);
+					current_length = chain_calculate_length_(chain);
+					FLAC__ASSERT(current_length == chain->initial_length);
+				}
+				/* if there is at least 'delta' bytes of padding, trim the padding down */
+				else if((FLAC__off_t)chain->tail->data->length >= delta) {
+					chain->tail->data->length -= delta;
+					current_length -= delta;
+					FLAC__ASSERT(current_length == chain->initial_length);
+				}
+			}
+		}
+	}
+
+	/* check sizes of all metadata blocks; reduce padding size if necessary */
+	{
+		FLAC__Metadata_Node *node;
+		for (node = chain->head; node; node = node->next) {
+			if(node->data->length >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN)) {
+				if(node->data->type == FLAC__METADATA_TYPE_PADDING) {
+					node->data->length = (1u << FLAC__STREAM_METADATA_LENGTH_LEN) - 1;
+					current_length = chain_calculate_length_(chain);
+				} else {
+					chain->status = FLAC__METADATA_CHAIN_STATUS_BAD_METADATA;
+					return 0;
+				}
+			}
+		}
+	}
+
+	return current_length;
+}
+
+#if defined(_MSC_VER)
+#pragma warning ( default : 4244 )
+#endif
+
+static FLAC__bool chain_read_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__IOCallback_Tell tell_cb)
+{
+	FLAC__Metadata_Node *node;
+
+	FLAC__ASSERT(0 != chain);
+
+	/* we assume we're already at the beginning of the file */
+
+	switch(seek_to_first_metadata_block_cb_(handle, read_cb, seek_cb)) {
+		case 0:
+			break;
+		case 1:
+			chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
+			return false;
+		case 2:
+			chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+			return false;
+		case 3:
+			chain->status = FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE;
+			return false;
+		default:
+			FLAC__ASSERT(0);
+			return false;
+	}
+
+	{
+		FLAC__int64 pos = tell_cb(handle);
+		if(pos < 0) {
+			chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
+			return false;
+		}
+		chain->first_offset = (FLAC__off_t)pos;
+	}
+
+	{
+		FLAC__bool is_last;
+		FLAC__MetadataType type;
+		uint32_t length;
+
+		do {
+			node = node_new_();
+			if(0 == node) {
+				chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+				return false;
+			}
+
+			if(!read_metadata_block_header_cb_(handle, read_cb, &is_last, &type, &length)) {
+				node_delete_(node);
+				chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
+				return false;
+			}
+
+			node->data = FLAC__metadata_object_new(type);
+			if(0 == node->data) {
+				node_delete_(node);
+				chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+				return false;
+			}
+
+			node->data->is_last = is_last;
+			node->data->length = length;
+
+			chain->status = get_equivalent_status_(read_metadata_block_data_cb_(handle, read_cb, seek_cb, node->data));
+			if(chain->status != FLAC__METADATA_CHAIN_STATUS_OK) {
+				node_delete_(node);
+				return false;
+			}
+			chain_append_node_(chain, node);
+		} while(!is_last);
+	}
+
+	{
+		FLAC__int64 pos = tell_cb(handle);
+		if(pos < 0) {
+			chain->status = FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
+			return false;
+		}
+		chain->last_offset = (FLAC__off_t)pos;
+	}
+
+	chain->initial_length = chain_calculate_length_(chain);
+
+	return true;
+}
+
+static FLAC__StreamDecoderReadStatus chain_read_ogg_read_cb_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
+{
+	FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
+	(void)decoder;
+	if(*bytes > 0 && chain->status == FLAC__METADATA_CHAIN_STATUS_OK) {
+		*bytes = chain->read_cb(buffer, sizeof(FLAC__byte), *bytes, chain->handle);
+		if(*bytes == 0)
+			return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
+		else
+			return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
+	}
+	else
+		return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
+}
+
+static FLAC__StreamDecoderWriteStatus chain_read_ogg_write_cb_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
+{
+	(void)decoder, (void)frame, (void)buffer, (void)client_data;
+	return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+}
+
+static void chain_read_ogg_metadata_cb_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+	FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
+	FLAC__Metadata_Node *node;
+
+	(void)decoder;
+
+	node = node_new_();
+	if(0 == node) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+		return;
+	}
+
+	node->data = FLAC__metadata_object_clone(metadata);
+	if(0 == node->data) {
+		node_delete_(node);
+		chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+		return;
+	}
+
+	chain_append_node_(chain, node);
+}
+
+static void chain_read_ogg_error_cb_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
+{
+	FLAC__Metadata_Chain *chain = (FLAC__Metadata_Chain*)client_data;
+	(void)decoder, (void)status;
+	chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
+}
+
+static FLAC__bool chain_read_ogg_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb)
+{
+	FLAC__StreamDecoder *decoder;
+
+	FLAC__ASSERT(0 != chain);
+
+	/* we assume we're already at the beginning of the file */
+
+	chain->handle = handle;
+	chain->read_cb = read_cb;
+	if(0 == (decoder = FLAC__stream_decoder_new())) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+	FLAC__stream_decoder_set_metadata_respond_all(decoder);
+	if(FLAC__stream_decoder_init_ogg_stream(decoder, chain_read_ogg_read_cb_, /*seek_callback=*/0, /*tell_callback=*/0, /*length_callback=*/0, /*eof_callback=*/0, chain_read_ogg_write_cb_, chain_read_ogg_metadata_cb_, chain_read_ogg_error_cb_, chain) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
+		FLAC__stream_decoder_delete(decoder);
+		chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
+		return false;
+	}
+
+	chain->first_offset = 0; /*@@@ wrong; will need to be set correctly to implement metadata writing for Ogg FLAC */
+
+	if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder))
+		chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR; /*@@@ maybe needs better error code */
+	if(chain->status != FLAC__METADATA_CHAIN_STATUS_OK) {
+		FLAC__stream_decoder_delete(decoder);
+		return false;
+	}
+
+	FLAC__stream_decoder_delete(decoder);
+
+	chain->last_offset = 0; /*@@@ wrong; will need to be set correctly to implement metadata writing for Ogg FLAC */
+
+	chain->initial_length = chain_calculate_length_(chain);
+
+	if(chain->initial_length == 0) {
+		/* Ogg FLAC file must have at least streaminfo and vorbis comment */
+		chain->status = FLAC__METADATA_CHAIN_STATUS_BAD_METADATA;
+		return false;
+	}
+
+	return true;
+}
+
+static FLAC__bool chain_rewrite_metadata_in_place_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, FLAC__IOCallback_Seek seek_cb)
+{
+	FLAC__Metadata_Node *node;
+
+	FLAC__ASSERT(0 != chain);
+	FLAC__ASSERT(0 != chain->head);
+
+	if(0 != seek_cb(handle, chain->first_offset, SEEK_SET)) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+		return false;
+	}
+
+	for(node = chain->head; node; node = node->next) {
+		if(!write_metadata_block_header_cb_(handle, write_cb, node->data)) {
+			chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
+			return false;
+		}
+		if(!write_metadata_block_data_cb_(handle, write_cb, node->data)) {
+			chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
+			return false;
+		}
+	}
+
+	/*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
+
+	chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
+	return true;
+}
+
+static FLAC__bool chain_rewrite_metadata_in_place_(FLAC__Metadata_Chain *chain)
+{
+	FILE *file;
+	FLAC__bool ret;
+
+	FLAC__ASSERT(0 != chain->filename);
+
+	if(0 == (file = flac_fopen(chain->filename, "r+b"))) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
+		return false;
+	}
+
+	/* chain_rewrite_metadata_in_place_cb_() sets chain->status for us */
+	ret = chain_rewrite_metadata_in_place_cb_(chain, (FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, fseek_wrapper_);
+
+	fclose(file);
+
+	return ret;
+}
+
+static FLAC__bool chain_rewrite_file_(FLAC__Metadata_Chain *chain, const char *tempfile_path_prefix)
+{
+	FILE *f, *tempfile = NULL;
+	char *tempfilename;
+	FLAC__Metadata_SimpleIteratorStatus status;
+	const FLAC__Metadata_Node *node;
+
+	FLAC__ASSERT(0 != chain);
+	FLAC__ASSERT(0 != chain->filename);
+	FLAC__ASSERT(0 != chain->head);
+
+	/* copy the file prefix (data up to first metadata block */
+	if(0 == (f = flac_fopen(chain->filename, "rb"))) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
+		return false;
+	}
+	if(!open_tempfile_(chain->filename, tempfile_path_prefix, &tempfile, &tempfilename, &status)) {
+		chain->status = get_equivalent_status_(status);
+		goto err;
+	}
+	if(!copy_n_bytes_from_file_(f, tempfile, chain->first_offset, &status)) {
+		chain->status = get_equivalent_status_(status);
+		goto err;
+	}
+
+	/* write the metadata */
+	for(node = chain->head; node; node = node->next) {
+		if(!write_metadata_block_header_(tempfile, &status, node->data)) {
+			chain->status = get_equivalent_status_(status);
+			goto err;
+		}
+		if(!write_metadata_block_data_(tempfile, &status, node->data)) {
+			chain->status = get_equivalent_status_(status);
+			goto err;
+		}
+	}
+	/*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
+
+	/* copy the file postfix (everything after the metadata) */
+	if(0 != fseeko(f, chain->last_offset, SEEK_SET)) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+		goto err;
+	}
+	if(!copy_remaining_bytes_from_file_(f, tempfile, &status)) {
+		chain->status = get_equivalent_status_(status);
+		goto err;
+	}
+
+	/* move the tempfile on top of the original */
+	(void)fclose(f);
+	if(!transport_tempfile_(chain->filename, &tempfile, &tempfilename, &status))
+		return false;
+
+	return true;
+
+err:
+	(void)fclose(f);
+	cleanup_tempfile_(&tempfile, &tempfilename);
+	return false;
+}
+
+/* assumes 'handle' is already at beginning of file */
+static FLAC__bool chain_rewrite_file_cb_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb)
+{
+	FLAC__Metadata_SimpleIteratorStatus status;
+	const FLAC__Metadata_Node *node;
+
+	FLAC__ASSERT(0 != chain);
+	FLAC__ASSERT(0 == chain->filename);
+	FLAC__ASSERT(0 != chain->head);
+
+	/* copy the file prefix (data up to first metadata block */
+	if(!copy_n_bytes_from_file_cb_(handle, read_cb, temp_handle, temp_write_cb, chain->first_offset, &status)) {
+		chain->status = get_equivalent_status_(status);
+		return false;
+	}
+
+	/* write the metadata */
+	for(node = chain->head; node; node = node->next) {
+		if(!write_metadata_block_header_cb_(temp_handle, temp_write_cb, node->data)) {
+			chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
+			return false;
+		}
+		if(!write_metadata_block_data_cb_(temp_handle, temp_write_cb, node->data)) {
+			chain->status = FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
+			return false;
+		}
+	}
+	/*FLAC__ASSERT(fflush(), ftello() == chain->last_offset);*/
+
+	/* copy the file postfix (everything after the metadata) */
+	if(0 != seek_cb(handle, chain->last_offset, SEEK_SET)) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+		return false;
+	}
+	if(!copy_remaining_bytes_from_file_cb_(handle, read_cb, eof_cb, temp_handle, temp_write_cb, &status)) {
+		chain->status = get_equivalent_status_(status);
+		return false;
+	}
+
+	return true;
+}
+
+FLAC_API FLAC__Metadata_Chain *FLAC__metadata_chain_new(void)
+{
+	FLAC__Metadata_Chain *chain = calloc(1, sizeof(FLAC__Metadata_Chain));
+
+	if(0 != chain)
+		chain_init_(chain);
+
+	return chain;
+}
+
+FLAC_API void FLAC__metadata_chain_delete(FLAC__Metadata_Chain *chain)
+{
+	FLAC__ASSERT(0 != chain);
+
+	chain_clear_(chain);
+
+	free(chain);
+}
+
+FLAC_API FLAC__Metadata_ChainStatus FLAC__metadata_chain_status(FLAC__Metadata_Chain *chain)
+{
+	FLAC__Metadata_ChainStatus status;
+
+	FLAC__ASSERT(0 != chain);
+
+	status = chain->status;
+	chain->status = FLAC__METADATA_CHAIN_STATUS_OK;
+	return status;
+}
+
+static FLAC__bool chain_read_(FLAC__Metadata_Chain *chain, const char *filename, FLAC__bool is_ogg)
+{
+	FILE *file;
+	FLAC__bool ret;
+
+	FLAC__ASSERT(0 != chain);
+	FLAC__ASSERT(0 != filename);
+
+	chain_clear_(chain);
+
+	if(0 == (chain->filename = strdup(filename))) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	chain->is_ogg = is_ogg;
+
+	if(0 == (file = flac_fopen(filename, "rb"))) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
+		return false;
+	}
+
+	/* the function also sets chain->status for us */
+	ret = is_ogg?
+		chain_read_ogg_cb_(chain, file, (FLAC__IOCallback_Read)fread) :
+		chain_read_cb_(chain, file, (FLAC__IOCallback_Read)fread, fseek_wrapper_, ftell_wrapper_)
+	;
+
+	fclose(file);
+
+	return ret;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_chain_read(FLAC__Metadata_Chain *chain, const char *filename)
+{
+	return chain_read_(chain, filename, /*is_ogg=*/false);
+}
+
+/*@@@@add to tests*/
+FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg(FLAC__Metadata_Chain *chain, const char *filename)
+{
+	return chain_read_(chain, filename, /*is_ogg=*/true);
+}
+
+static FLAC__bool chain_read_with_callbacks_(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__bool is_ogg)
+{
+	FLAC__bool ret;
+
+	FLAC__ASSERT(0 != chain);
+
+	chain_clear_(chain);
+
+	if (0 == callbacks.read || 0 == callbacks.seek || 0 == callbacks.tell) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
+		return false;
+	}
+
+	chain->is_ogg = is_ogg;
+
+	/* rewind */
+	if(0 != callbacks.seek(handle, 0, SEEK_SET)) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+		return false;
+	}
+
+	/* the function also sets chain->status for us */
+	ret = is_ogg?
+		chain_read_ogg_cb_(chain, handle, callbacks.read) :
+		chain_read_cb_(chain, handle, callbacks.read, callbacks.seek, callbacks.tell)
+	;
+
+	return ret;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_chain_read_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
+{
+	return chain_read_with_callbacks_(chain, handle, callbacks, /*is_ogg=*/false);
+}
+
+/*@@@@add to tests*/
+FLAC_API FLAC__bool FLAC__metadata_chain_read_ogg_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
+{
+	return chain_read_with_callbacks_(chain, handle, callbacks, /*is_ogg=*/true);
+}
+
+typedef enum {
+	LBS_NONE = 0,
+	LBS_SIZE_CHANGED,
+	LBS_BLOCK_ADDED,
+	LBS_BLOCK_REMOVED
+} LastBlockState;
+
+#if defined(_MSC_VER)
+// silence three MSVC warnings 'conversion from 'conversion from 'const __int64' to 'uint32_t', possible loss of data'
+#pragma warning ( disable : 4244 )
+#endif
+
+FLAC_API FLAC__bool FLAC__metadata_chain_check_if_tempfile_needed(FLAC__Metadata_Chain *chain, FLAC__bool use_padding)
+{
+	/* This does all the same checks that are in chain_prepare_for_write_()
+	 * but doesn't actually alter the chain.  Make sure to update the logic
+	 * here if chain_prepare_for_write_() changes.
+	 */
+	FLAC__off_t current_length;
+	LastBlockState lbs_state = LBS_NONE;
+	uint32_t lbs_size = 0;
+
+	FLAC__ASSERT(0 != chain);
+
+	current_length = chain_calculate_length_(chain);
+
+	if(use_padding) {
+		const FLAC__Metadata_Node * const node = chain->tail;
+		/* if the metadata shrank and the last block is padding, we just extend the last padding block */
+		if(current_length < chain->initial_length && node->data->type == FLAC__METADATA_TYPE_PADDING) {
+			lbs_state = LBS_SIZE_CHANGED;
+			lbs_size = node->data->length + (chain->initial_length - current_length);
+		}
+		/* if the metadata shrank more than 4 bytes then there's room to add another padding block */
+		else if(current_length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH <= chain->initial_length) {
+			lbs_state = LBS_BLOCK_ADDED;
+			lbs_size = chain->initial_length - (current_length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH);
+		}
+		/* if the metadata grew but the last block is padding, try cutting the padding to restore the original length so we don't have to rewrite the whole file */
+		else if(current_length > chain->initial_length) {
+			const FLAC__off_t delta = current_length - chain->initial_length;
+			if(node->data->type == FLAC__METADATA_TYPE_PADDING) {
+				/* if the delta is exactly the size of the last padding block, remove the padding block */
+				if((FLAC__off_t)node->data->length + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH == delta) {
+					lbs_state = LBS_BLOCK_REMOVED;
+					lbs_size = 0;
+				}
+				/* if there is at least 'delta' bytes of padding, trim the padding down */
+				else if((FLAC__off_t)node->data->length >= delta) {
+					lbs_state = LBS_SIZE_CHANGED;
+					lbs_size = node->data->length - delta;
+				}
+			}
+		}
+	}
+
+	current_length = 0;
+	/* check sizes of all metadata blocks; reduce padding size if necessary */
+	{
+		const FLAC__Metadata_Node *node;
+		for(node = chain->head; node; node = node->next) {
+			uint32_t block_len = node->data->length;
+			if(node == chain->tail) {
+				if(lbs_state == LBS_BLOCK_REMOVED)
+					continue;
+				else if(lbs_state == LBS_SIZE_CHANGED)
+					block_len = lbs_size;
+			}
+			if(block_len >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN)) {
+				if(node->data->type == FLAC__METADATA_TYPE_PADDING)
+					block_len = (1u << FLAC__STREAM_METADATA_LENGTH_LEN) - 1;
+				else
+					return false /* the return value doesn't matter */;
+			}
+			current_length += (FLAC__STREAM_METADATA_HEADER_LENGTH + block_len);
+		}
+
+		if(lbs_state == LBS_BLOCK_ADDED) {
+			/* test added padding block */
+			uint32_t block_len = lbs_size;
+			if(block_len >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
+				block_len = (1u << FLAC__STREAM_METADATA_LENGTH_LEN) - 1;
+			current_length += (FLAC__STREAM_METADATA_HEADER_LENGTH + block_len);
+		}
+	}
+
+	return (current_length != chain->initial_length);
+}
+
+#if defined(_MSC_VER)
+#pragma warning ( default : 4244 )
+#endif
+
+FLAC_API FLAC__bool FLAC__metadata_chain_write(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__bool preserve_file_stats)
+{
+	struct flac_stat_s stats;
+	const char *tempfile_path_prefix = 0;
+	FLAC__off_t current_length;
+
+	FLAC__ASSERT(0 != chain);
+
+	if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
+		chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
+		return false;
+	}
+
+	if (0 == chain->filename) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
+		return false;
+	}
+
+	current_length = chain_prepare_for_write_(chain, use_padding);
+
+	/* a return value of 0 means there was an error; chain->status is already set */
+	if (0 == current_length)
+		return false;
+
+	if(preserve_file_stats)
+		get_file_stats_(chain->filename, &stats);
+
+	if(current_length == chain->initial_length) {
+		if(!chain_rewrite_metadata_in_place_(chain))
+			return false;
+	}
+	else {
+		if(!chain_rewrite_file_(chain, tempfile_path_prefix))
+			return false;
+
+		/* recompute lengths and offsets */
+		{
+			const FLAC__Metadata_Node *node;
+			chain->initial_length = current_length;
+			chain->last_offset = chain->first_offset;
+			for(node = chain->head; node; node = node->next)
+				chain->last_offset += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
+		}
+	}
+
+	if(preserve_file_stats)
+		set_file_stats_(chain->filename, &stats);
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks)
+{
+	FLAC__off_t current_length;
+
+	FLAC__ASSERT(0 != chain);
+
+	if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
+		chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
+		return false;
+	}
+
+	if (0 != chain->filename) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
+		return false;
+	}
+
+	if (0 == callbacks.write || 0 == callbacks.seek) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
+		return false;
+	}
+
+	if (FLAC__metadata_chain_check_if_tempfile_needed(chain, use_padding)) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL;
+		return false;
+	}
+
+	current_length = chain_prepare_for_write_(chain, use_padding);
+
+	/* a return value of 0 means there was an error; chain->status is already set */
+	if (0 == current_length)
+		return false;
+
+	FLAC__ASSERT(current_length == chain->initial_length);
+
+	return chain_rewrite_metadata_in_place_cb_(chain, handle, callbacks.write, callbacks.seek);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_chain_write_with_callbacks_and_tempfile(FLAC__Metadata_Chain *chain, FLAC__bool use_padding, FLAC__IOHandle handle, FLAC__IOCallbacks callbacks, FLAC__IOHandle temp_handle, FLAC__IOCallbacks temp_callbacks)
+{
+	FLAC__off_t current_length;
+
+	FLAC__ASSERT(0 != chain);
+
+	if (chain->is_ogg) { /* cannot write back to Ogg FLAC yet */
+		chain->status = FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
+		return false;
+	}
+
+	if (0 != chain->filename) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_READ_WRITE_MISMATCH;
+		return false;
+	}
+
+	if (0 == callbacks.read || 0 == callbacks.seek || 0 == callbacks.eof) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
+		return false;
+	}
+	if (0 == temp_callbacks.write) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_INVALID_CALLBACKS;
+		return false;
+	}
+
+	if (!FLAC__metadata_chain_check_if_tempfile_needed(chain, use_padding)) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_WRONG_WRITE_CALL;
+		return false;
+	}
+
+	current_length = chain_prepare_for_write_(chain, use_padding);
+
+	/* a return value of 0 means there was an error; chain->status is already set */
+	if (0 == current_length)
+		return false;
+
+	FLAC__ASSERT(current_length != chain->initial_length);
+
+	/* rewind */
+	if(0 != callbacks.seek(handle, 0, SEEK_SET)) {
+		chain->status = FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+		return false;
+	}
+
+	if(!chain_rewrite_file_cb_(chain, handle, callbacks.read, callbacks.seek, callbacks.eof, temp_handle, temp_callbacks.write))
+		return false;
+
+	/* recompute lengths and offsets */
+	{
+		const FLAC__Metadata_Node *node;
+		chain->initial_length = current_length;
+		chain->last_offset = chain->first_offset;
+		for(node = chain->head; node; node = node->next)
+			chain->last_offset += (FLAC__STREAM_METADATA_HEADER_LENGTH + node->data->length);
+	}
+
+	return true;
+}
+
+FLAC_API void FLAC__metadata_chain_merge_padding(FLAC__Metadata_Chain *chain)
+{
+	FLAC__Metadata_Node *node;
+
+	FLAC__ASSERT(0 != chain);
+
+	for(node = chain->head; node; ) {
+		if(!chain_merge_adjacent_padding_(chain, node))
+			node = node->next;
+	}
+}
+
+FLAC_API void FLAC__metadata_chain_sort_padding(FLAC__Metadata_Chain *chain)
+{
+	FLAC__Metadata_Node *node, *save;
+	uint32_t i;
+
+	FLAC__ASSERT(0 != chain);
+
+	/*
+	 * Don't try and be too smart... this simple algo is good enough for
+	 * the small number of nodes that we deal with.
+	 */
+	for(i = 0, node = chain->head; i < chain->nodes; i++) {
+		if(node->data->type == FLAC__METADATA_TYPE_PADDING) {
+			save = node->next;
+			chain_remove_node_(chain, node);
+			chain_append_node_(chain, node);
+			node = save;
+		}
+		else {
+			node = node->next;
+		}
+	}
+
+	FLAC__metadata_chain_merge_padding(chain);
+}
+
+
+FLAC_API FLAC__Metadata_Iterator *FLAC__metadata_iterator_new(void)
+{
+	FLAC__Metadata_Iterator *iterator = calloc(1, sizeof(FLAC__Metadata_Iterator));
+
+	/* calloc() implies:
+		iterator->current = 0;
+		iterator->chain = 0;
+	*/
+
+	return iterator;
+}
+
+FLAC_API void FLAC__metadata_iterator_delete(FLAC__Metadata_Iterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+
+	free(iterator);
+}
+
+FLAC_API void FLAC__metadata_iterator_init(FLAC__Metadata_Iterator *iterator, FLAC__Metadata_Chain *chain)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != chain);
+	FLAC__ASSERT(0 != chain->head);
+
+	iterator->chain = chain;
+	iterator->current = chain->head;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_iterator_next(FLAC__Metadata_Iterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+
+	if(0 == iterator->current || 0 == iterator->current->next)
+		return false;
+
+	iterator->current = iterator->current->next;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_iterator_prev(FLAC__Metadata_Iterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+
+	if(0 == iterator->current || 0 == iterator->current->prev)
+		return false;
+
+	iterator->current = iterator->current->prev;
+	return true;
+}
+
+FLAC_API FLAC__MetadataType FLAC__metadata_iterator_get_block_type(const FLAC__Metadata_Iterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->current);
+	FLAC__ASSERT(0 != iterator->current->data);
+
+	return iterator->current->data->type;
+}
+
+FLAC_API FLAC__StreamMetadata *FLAC__metadata_iterator_get_block(FLAC__Metadata_Iterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->current);
+
+	return iterator->current->data;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_iterator_set_block(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != block);
+	return FLAC__metadata_iterator_delete_block(iterator, false) && FLAC__metadata_iterator_insert_block_after(iterator, block);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_iterator_delete_block(FLAC__Metadata_Iterator *iterator, FLAC__bool replace_with_padding)
+{
+	FLAC__Metadata_Node *save;
+
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->current);
+
+	if(0 == iterator->current->prev) {
+		FLAC__ASSERT(iterator->current->data->type == FLAC__METADATA_TYPE_STREAMINFO);
+		return false;
+	}
+
+	save = iterator->current->prev;
+
+	if(replace_with_padding) {
+		FLAC__metadata_object_delete_data(iterator->current->data);
+		iterator->current->data->type = FLAC__METADATA_TYPE_PADDING;
+	}
+	else {
+		chain_delete_node_(iterator->chain, iterator->current);
+	}
+
+	iterator->current = save;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_before(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block)
+{
+	FLAC__Metadata_Node *node;
+
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->current);
+	FLAC__ASSERT(0 != block);
+
+	if(block->type == FLAC__METADATA_TYPE_STREAMINFO)
+		return false;
+
+	if(0 == iterator->current->prev) {
+		FLAC__ASSERT(iterator->current->data->type == FLAC__METADATA_TYPE_STREAMINFO);
+		return false;
+	}
+
+	if(0 == (node = node_new_()))
+		return false;
+
+	node->data = block;
+	iterator_insert_node_(iterator, node);
+	iterator->current = node;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_iterator_insert_block_after(FLAC__Metadata_Iterator *iterator, FLAC__StreamMetadata *block)
+{
+	FLAC__Metadata_Node *node;
+
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->current);
+	FLAC__ASSERT(0 != block);
+
+	if(block->type == FLAC__METADATA_TYPE_STREAMINFO)
+		return false;
+
+	if(0 == (node = node_new_()))
+		return false;
+
+	node->data = block;
+	iterator_insert_node_after_(iterator, node);
+	iterator->current = node;
+	return true;
+}
+
+
+/****************************************************************************
+ *
+ * Local function definitions
+ *
+ ***************************************************************************/
+
+void pack_uint32_(FLAC__uint32 val, FLAC__byte *b, uint32_t bytes)
+{
+	uint32_t i;
+
+	b += bytes;
+
+	for(i = 0; i < bytes; i++) {
+		*(--b) = (FLAC__byte)(val & 0xff);
+		val >>= 8;
+	}
+}
+
+void pack_uint32_little_endian_(FLAC__uint32 val, FLAC__byte *b, uint32_t bytes)
+{
+	uint32_t i;
+
+	for(i = 0; i < bytes; i++) {
+		*(b++) = (FLAC__byte)(val & 0xff);
+		val >>= 8;
+	}
+}
+
+void pack_uint64_(FLAC__uint64 val, FLAC__byte *b, uint32_t bytes)
+{
+	uint32_t i;
+
+	b += bytes;
+
+	for(i = 0; i < bytes; i++) {
+		*(--b) = (FLAC__byte)(val & 0xff);
+		val >>= 8;
+	}
+}
+
+FLAC__uint32 unpack_uint32_(FLAC__byte *b, uint32_t bytes)
+{
+	FLAC__uint32 ret = 0;
+	uint32_t i;
+
+	for(i = 0; i < bytes; i++)
+		ret = (ret << 8) | (FLAC__uint32)(*b++);
+
+	return ret;
+}
+
+FLAC__uint32 unpack_uint32_little_endian_(FLAC__byte *b, uint32_t bytes)
+{
+	FLAC__uint32 ret = 0;
+	uint32_t i;
+
+	b += bytes;
+
+	for(i = 0; i < bytes; i++)
+		ret = (ret << 8) | (FLAC__uint32)(*--b);
+
+	return ret;
+}
+
+FLAC__uint64 unpack_uint64_(FLAC__byte *b, uint32_t bytes)
+{
+	FLAC__uint64 ret = 0;
+	uint32_t i;
+
+	for(i = 0; i < bytes; i++)
+		ret = (ret << 8) | (FLAC__uint64)(*b++);
+
+	return ret;
+}
+
+FLAC__bool read_metadata_block_header_(FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+
+	if(!read_metadata_block_header_cb_((FLAC__IOHandle)iterator->file, (FLAC__IOCallback_Read)fread, &iterator->is_last, &iterator->type, &iterator->length)) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+		return false;
+	}
+
+	return true;
+}
+
+FLAC__bool read_metadata_block_data_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block)
+{
+	FLAC__ASSERT(0 != iterator);
+	FLAC__ASSERT(0 != iterator->file);
+
+	iterator->status = read_metadata_block_data_cb_((FLAC__IOHandle)iterator->file, (FLAC__IOCallback_Read)fread, fseek_wrapper_, block);
+
+	return (iterator->status == FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK);
+}
+
+FLAC__bool read_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__bool *is_last, FLAC__MetadataType *type, uint32_t *length)
+{
+	FLAC__byte raw_header[FLAC__STREAM_METADATA_HEADER_LENGTH];
+
+	if(read_cb(raw_header, 1, FLAC__STREAM_METADATA_HEADER_LENGTH, handle) != FLAC__STREAM_METADATA_HEADER_LENGTH)
+		return false;
+
+	*is_last = raw_header[0] & 0x80? true : false;
+	*type = (FLAC__MetadataType)(raw_header[0] & 0x7f);
+	*length = unpack_uint32_(raw_header + 1, 3);
+
+	/* Note that we don't check:
+	 *    if(iterator->type >= FLAC__METADATA_TYPE_UNDEFINED)
+	 * we just will read in an opaque block
+	 */
+
+	return true;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata *block)
+{
+	switch(block->type) {
+		case FLAC__METADATA_TYPE_STREAMINFO:
+			return read_metadata_block_data_streaminfo_cb_(handle, read_cb, &block->data.stream_info);
+		case FLAC__METADATA_TYPE_PADDING:
+			return read_metadata_block_data_padding_cb_(handle, seek_cb, &block->data.padding, block->length);
+		case FLAC__METADATA_TYPE_APPLICATION:
+			return read_metadata_block_data_application_cb_(handle, read_cb, &block->data.application, block->length);
+		case FLAC__METADATA_TYPE_SEEKTABLE:
+			return read_metadata_block_data_seektable_cb_(handle, read_cb, &block->data.seek_table, block->length);
+		case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+			return read_metadata_block_data_vorbis_comment_cb_(handle, read_cb, seek_cb, &block->data.vorbis_comment, block->length);
+		case FLAC__METADATA_TYPE_CUESHEET:
+			return read_metadata_block_data_cuesheet_cb_(handle, read_cb, &block->data.cue_sheet);
+		case FLAC__METADATA_TYPE_PICTURE:
+			return read_metadata_block_data_picture_cb_(handle, read_cb, &block->data.picture);
+		default:
+			return read_metadata_block_data_unknown_cb_(handle, read_cb, &block->data.unknown, block->length);
+	}
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_StreamInfo *block)
+{
+	FLAC__byte buffer[FLAC__STREAM_METADATA_STREAMINFO_LENGTH], *b;
+
+	if(read_cb(buffer, 1, FLAC__STREAM_METADATA_STREAMINFO_LENGTH, handle) != FLAC__STREAM_METADATA_STREAMINFO_LENGTH)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+
+	b = buffer;
+
+	/* we are using hardcoded numbers for simplicity but we should
+	 * probably eventually write a bit-level unpacker and use the
+	 * _STREAMINFO_ constants.
+	 */
+	block->min_blocksize = unpack_uint32_(b, 2); b += 2;
+	block->max_blocksize = unpack_uint32_(b, 2); b += 2;
+	block->min_framesize = unpack_uint32_(b, 3); b += 3;
+	block->max_framesize = unpack_uint32_(b, 3); b += 3;
+	block->sample_rate = (unpack_uint32_(b, 2) << 4) | ((uint32_t)(b[2] & 0xf0) >> 4);
+	block->channels = (uint32_t)((b[2] & 0x0e) >> 1) + 1;
+	block->bits_per_sample = ((((uint32_t)(b[2] & 0x01)) << 4) | (((uint32_t)(b[3] & 0xf0)) >> 4)) + 1;
+	block->total_samples = (((FLAC__uint64)(b[3] & 0x0f)) << 32) | unpack_uint64_(b+4, 4);
+	memcpy(block->md5sum, b+8, 16);
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_Padding *block, uint32_t block_length)
+{
+	(void)block; /* nothing to do; we don't care about reading the padding bytes */
+
+	if(0 != seek_cb(handle, block_length, SEEK_CUR))
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Application *block, uint32_t block_length)
+{
+	const uint32_t id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
+
+	if(read_cb(block->id, 1, id_bytes, handle) != id_bytes)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+
+	if(block_length < id_bytes)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+
+	block_length -= id_bytes;
+
+	if(block_length == 0) {
+		block->data = 0;
+	}
+	else {
+		if(0 == (block->data = malloc(block_length)))
+			return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+
+		if(read_cb(block->data, 1, block_length, handle) != block_length)
+			return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	}
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_SeekTable *block, uint32_t block_length)
+{
+	uint32_t i;
+	FLAC__byte buffer[FLAC__STREAM_METADATA_SEEKPOINT_LENGTH];
+
+	FLAC__ASSERT(block_length % FLAC__STREAM_METADATA_SEEKPOINT_LENGTH == 0);
+
+	block->num_points = block_length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
+
+	if(block->num_points == 0)
+		block->points = 0;
+	else if(0 == (block->points = safe_malloc_mul_2op_p(block->num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint))))
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+
+	for(i = 0; i < block->num_points; i++) {
+		if(read_cb(buffer, 1, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH, handle) != FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)
+			return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+		/* some MAGIC NUMBERs here */
+		block->points[i].sample_number = unpack_uint64_(buffer, 8);
+		block->points[i].stream_offset = unpack_uint64_(buffer+8, 8);
+		block->points[i].frame_samples = unpack_uint32_(buffer+16, 2);
+	}
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_entry_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_VorbisComment_Entry *entry, uint32_t max_length)
+{
+	const uint32_t entry_length_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8;
+	FLAC__byte buffer[4]; /* magic number is asserted below */
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8 == sizeof(buffer));
+
+	if(max_length < entry_length_len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA;
+
+	max_length -= entry_length_len;
+	if(read_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	entry->length = unpack_uint32_little_endian_(buffer, entry_length_len);
+	if(max_length < entry->length) {
+		entry->length = 0;
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA;
+	} else max_length -= entry->length;
+
+	if(0 != entry->entry)
+		free(entry->entry);
+
+	if(0 == (entry->entry = safe_malloc_add_2op_(entry->length, /*+*/1)))
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+
+	if(entry->length > 0 && read_cb(entry->entry, 1, entry->length, handle) != entry->length)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+
+	entry->entry[entry->length] = '\0';
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb, FLAC__StreamMetadata_VorbisComment *block, uint32_t block_length)
+{
+	uint32_t i;
+	FLAC__Metadata_SimpleIteratorStatus status;
+	const uint32_t num_comments_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8;
+	FLAC__byte buffer[4]; /* magic number is asserted below */
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8 == sizeof(buffer));
+
+	status = read_metadata_block_data_vorbis_comment_entry_cb_(handle, read_cb, &(block->vendor_string), block_length);
+	if(block_length >= 4)
+		block_length -= 4;
+	if(status == FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA)
+		goto skip;
+	else if(status != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
+		return status;
+	block_length -= block->vendor_string.length;
+
+	if(block_length < num_comments_len) goto skip; else block_length -= num_comments_len;
+	if(read_cb(buffer, 1, num_comments_len, handle) != num_comments_len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	block->num_comments = unpack_uint32_little_endian_(buffer, num_comments_len);
+
+	if(block->num_comments == 0) {
+		block->comments = 0;
+	}
+	else if(block->num_comments > (block_length >> 2)) { /* each comment needs at least 4 byte */
+		block->num_comments = 0;
+		status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA;
+		goto skip;
+	}
+	else if(0 == (block->comments = calloc(block->num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry)))) {
+		block->num_comments = 0;
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+	}
+
+	for(i = 0; i < block->num_comments; i++) {
+		status = read_metadata_block_data_vorbis_comment_entry_cb_(handle, read_cb, block->comments + i, block_length);
+		if(block_length >= 4) block_length -= 4;
+		if(status == FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA) {
+			block->num_comments = i;
+			goto skip;
+		}
+		else if(status != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK) return status;
+		block_length -= block->comments[i].length;
+	}
+
+  skip:
+	if(block_length > 0) {
+		/* bad metadata */
+		if(0 != seek_cb(handle, block_length, SEEK_CUR))
+			return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+	}
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_track_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet_Track *track)
+{
+	uint32_t i, len;
+	FLAC__byte buffer[32]; /* asserted below that this is big enough */
+
+	FLAC__ASSERT(sizeof(buffer) >= sizeof(FLAC__uint64));
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8);
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	track->offset = unpack_uint64_(buffer, len);
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	track->number = (FLAC__byte)unpack_uint32_(buffer, len);
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN / 8;
+	if(read_cb(track->isrc, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+
+	FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) % 8 == 0);
+	len = (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN == 1);
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN == 1);
+	track->type = buffer[0] >> 7;
+	track->pre_emphasis = (buffer[0] >> 6) & 1;
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	track->num_indices = (FLAC__byte)unpack_uint32_(buffer, len);
+
+	if(track->num_indices == 0) {
+		track->indices = 0;
+	}
+	else if(0 == (track->indices = calloc(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index))))
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+
+	for(i = 0; i < track->num_indices; i++) {
+		FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN % 8 == 0);
+		len = FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN / 8;
+		if(read_cb(buffer, 1, len, handle) != len)
+			return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+		track->indices[i].offset = unpack_uint64_(buffer, len);
+
+		FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN % 8 == 0);
+		len = FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN / 8;
+		if(read_cb(buffer, 1, len, handle) != len)
+			return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+		track->indices[i].number = (FLAC__byte)unpack_uint32_(buffer, len);
+
+		FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN % 8 == 0);
+		len = FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN / 8;
+		if(read_cb(buffer, 1, len, handle) != len)
+			return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	}
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_CueSheet *block)
+{
+	uint32_t i, len;
+	FLAC__Metadata_SimpleIteratorStatus status;
+	FLAC__byte buffer[1024]; /* MSVC needs a constant expression so we put a magic number and assert */
+
+	FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN)/8 <= sizeof(buffer));
+	FLAC__ASSERT(sizeof(FLAC__uint64) <= sizeof(buffer));
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN / 8;
+	if(read_cb(block->media_catalog_number, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	block->lead_in = unpack_uint64_(buffer, len);
+
+	FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) % 8 == 0);
+	len = (FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	block->is_cd = buffer[0]&0x80? true : false;
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	block->num_tracks = unpack_uint32_(buffer, len);
+
+	if(block->num_tracks == 0) {
+		block->tracks = 0;
+	}
+	else if(0 == (block->tracks = calloc(block->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track))))
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+
+	for(i = 0; i < block->num_tracks; i++) {
+		if(FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK != (status = read_metadata_block_data_cuesheet_track_cb_(handle, read_cb, block->tracks + i)))
+			return status;
+	}
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+static FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cstring_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__byte **data, FLAC__uint32 *length, FLAC__uint32 length_len)
+{
+	FLAC__byte buffer[sizeof(FLAC__uint32)];
+
+	FLAC__ASSERT(0 != data);
+	FLAC__ASSERT(length_len%8 == 0);
+
+	length_len /= 8; /* convert to bytes */
+
+	FLAC__ASSERT(sizeof(buffer) >= length_len);
+
+	if(read_cb(buffer, 1, length_len, handle) != length_len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	*length = unpack_uint32_(buffer, length_len);
+
+	if(*length > (1u << FLAC__STREAM_METADATA_LENGTH_LEN)) /* data cannot be larger than FLAC metadata block */
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA;
+
+	if(0 != *data)
+		free(*data);
+
+	if(0 == (*data = safe_malloc_add_2op_(*length, /*+*/1)))
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+
+	if(*length > 0) {
+		if(read_cb(*data, 1, *length, handle) != *length)
+			return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	}
+
+	(*data)[*length] = '\0';
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Picture *block)
+{
+	FLAC__Metadata_SimpleIteratorStatus status;
+	FLAC__byte buffer[4]; /* asserted below that this is big enough */
+	FLAC__uint32 len;
+
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8);
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_TYPE_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_PICTURE_TYPE_LEN / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	block->type = (FLAC__StreamMetadata_Picture_Type)unpack_uint32_(buffer, len);
+
+	if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, (FLAC__byte**)(&(block->mime_type)), &len, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
+		return status;
+
+	if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, &(block->description), &len, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
+		return status;
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	block->width = unpack_uint32_(buffer, len);
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	block->height = unpack_uint32_(buffer, len);
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	block->depth = unpack_uint32_(buffer, len);
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_PICTURE_COLORS_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_PICTURE_COLORS_LEN / 8;
+	if(read_cb(buffer, 1, len, handle) != len)
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	block->colors = unpack_uint32_(buffer, len);
+
+	/* for convenience we use read_metadata_block_data_picture_cstring_cb_() even though it adds an extra terminating NUL we don't use */
+	if((status = read_metadata_block_data_picture_cstring_cb_(handle, read_cb, &(block->data), &(block->data_length), FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN)) != FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK)
+		return status;
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__Metadata_SimpleIteratorStatus read_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__StreamMetadata_Unknown *block, uint32_t block_length)
+{
+	if(block_length == 0) {
+		block->data = 0;
+	}
+	else {
+		if(0 == (block->data = malloc(block_length)))
+			return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+
+		if(read_cb(block->data, 1, block_length, handle) != block_length)
+			return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+	}
+
+	return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+}
+
+FLAC__bool write_metadata_block_header_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block)
+{
+	FLAC__ASSERT(0 != file);
+	FLAC__ASSERT(0 != status);
+
+	if(!write_metadata_block_header_cb_((FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, block)) {
+		*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+		return false;
+	}
+
+	return true;
+}
+
+FLAC__bool write_metadata_block_data_(FILE *file, FLAC__Metadata_SimpleIteratorStatus *status, const FLAC__StreamMetadata *block)
+{
+	FLAC__ASSERT(0 != file);
+	FLAC__ASSERT(0 != status);
+
+	if (write_metadata_block_data_cb_((FLAC__IOHandle)file, (FLAC__IOCallback_Write)fwrite, block)) {
+		*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK;
+		return true;
+	}
+	else {
+		*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+		return false;
+	}
+}
+
+FLAC__bool write_metadata_block_header_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block)
+{
+	FLAC__byte buffer[FLAC__STREAM_METADATA_HEADER_LENGTH];
+
+	FLAC__ASSERT(block->length < (1u << FLAC__STREAM_METADATA_LENGTH_LEN));
+	/* double protection */
+	if(block->length >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
+		return false;
+
+	buffer[0] = (block->is_last? 0x80 : 0) | (FLAC__byte)block->type;
+	pack_uint32_(block->length, buffer + 1, 3);
+
+	if(write_cb(buffer, 1, FLAC__STREAM_METADATA_HEADER_LENGTH, handle) != FLAC__STREAM_METADATA_HEADER_LENGTH)
+		return false;
+
+	return true;
+}
+
+FLAC__bool write_metadata_block_data_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata *block)
+{
+	FLAC__ASSERT(0 != block);
+
+	switch(block->type) {
+		case FLAC__METADATA_TYPE_STREAMINFO:
+			return write_metadata_block_data_streaminfo_cb_(handle, write_cb, &block->data.stream_info);
+		case FLAC__METADATA_TYPE_PADDING:
+			return write_metadata_block_data_padding_cb_(handle, write_cb, &block->data.padding, block->length);
+		case FLAC__METADATA_TYPE_APPLICATION:
+			return write_metadata_block_data_application_cb_(handle, write_cb, &block->data.application, block->length);
+		case FLAC__METADATA_TYPE_SEEKTABLE:
+			return write_metadata_block_data_seektable_cb_(handle, write_cb, &block->data.seek_table);
+		case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+			return write_metadata_block_data_vorbis_comment_cb_(handle, write_cb, &block->data.vorbis_comment);
+		case FLAC__METADATA_TYPE_CUESHEET:
+			return write_metadata_block_data_cuesheet_cb_(handle, write_cb, &block->data.cue_sheet);
+		case FLAC__METADATA_TYPE_PICTURE:
+			return write_metadata_block_data_picture_cb_(handle, write_cb, &block->data.picture);
+		default:
+			return write_metadata_block_data_unknown_cb_(handle, write_cb, &block->data.unknown, block->length);
+	}
+}
+
+FLAC__bool write_metadata_block_data_streaminfo_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_StreamInfo *block)
+{
+	FLAC__byte buffer[FLAC__STREAM_METADATA_STREAMINFO_LENGTH];
+	const uint32_t channels1 = block->channels - 1;
+	const uint32_t bps1 = block->bits_per_sample - 1;
+
+	/* we are using hardcoded numbers for simplicity but we should
+	 * probably eventually write a bit-level packer and use the
+	 * _STREAMINFO_ constants.
+	 */
+	pack_uint32_(block->min_blocksize, buffer, 2);
+	pack_uint32_(block->max_blocksize, buffer+2, 2);
+	pack_uint32_(block->min_framesize, buffer+4, 3);
+	pack_uint32_(block->max_framesize, buffer+7, 3);
+	buffer[10] = (block->sample_rate >> 12) & 0xff;
+	buffer[11] = (block->sample_rate >> 4) & 0xff;
+	buffer[12] = ((block->sample_rate & 0x0f) << 4) | (channels1 << 1) | (bps1 >> 4);
+	buffer[13] = (FLAC__byte)(((bps1 & 0x0f) << 4) | ((block->total_samples >> 32) & 0x0f));
+	pack_uint32_((FLAC__uint32)block->total_samples, buffer+14, 4);
+	memcpy(buffer+18, block->md5sum, 16);
+
+	if(write_cb(buffer, 1, FLAC__STREAM_METADATA_STREAMINFO_LENGTH, handle) != FLAC__STREAM_METADATA_STREAMINFO_LENGTH)
+		return false;
+
+	return true;
+}
+
+FLAC__bool write_metadata_block_data_padding_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Padding *block, uint32_t block_length)
+{
+	uint32_t i, n = block_length;
+	FLAC__byte buffer[1024];
+
+	(void)block;
+
+	memset(buffer, 0, 1024);
+
+	for(i = 0; i < n/1024; i++)
+		if(write_cb(buffer, 1, 1024, handle) != 1024)
+			return false;
+
+	n %= 1024;
+
+	if(write_cb(buffer, 1, n, handle) != n)
+		return false;
+
+	return true;
+}
+
+FLAC__bool write_metadata_block_data_application_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Application *block, uint32_t block_length)
+{
+	const uint32_t id_bytes = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
+
+	if(write_cb(block->id, 1, id_bytes, handle) != id_bytes)
+		return false;
+
+	block_length -= id_bytes;
+
+	if(write_cb(block->data, 1, block_length, handle) != block_length)
+		return false;
+
+	return true;
+}
+
+FLAC__bool write_metadata_block_data_seektable_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_SeekTable *block)
+{
+	uint32_t i;
+	FLAC__byte buffer[FLAC__STREAM_METADATA_SEEKPOINT_LENGTH];
+
+	for(i = 0; i < block->num_points; i++) {
+		/* some MAGIC NUMBERs here */
+		pack_uint64_(block->points[i].sample_number, buffer, 8);
+		pack_uint64_(block->points[i].stream_offset, buffer+8, 8);
+		pack_uint32_(block->points[i].frame_samples, buffer+16, 2);
+		if(write_cb(buffer, 1, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH, handle) != FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)
+			return false;
+	}
+
+	return true;
+}
+
+FLAC__bool write_metadata_block_data_vorbis_comment_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_VorbisComment *block)
+{
+	uint32_t i;
+	const uint32_t entry_length_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8;
+	const uint32_t num_comments_len = FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN / 8;
+	FLAC__byte buffer[4]; /* magic number is asserted below */
+
+	FLAC__ASSERT(flac_max(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN, FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8 == sizeof(buffer));
+
+	pack_uint32_little_endian_(block->vendor_string.length, buffer, entry_length_len);
+	if(write_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
+		return false;
+	if(write_cb(block->vendor_string.entry, 1, block->vendor_string.length, handle) != block->vendor_string.length)
+		return false;
+
+	pack_uint32_little_endian_(block->num_comments, buffer, num_comments_len);
+	if(write_cb(buffer, 1, num_comments_len, handle) != num_comments_len)
+		return false;
+
+	for(i = 0; i < block->num_comments; i++) {
+		pack_uint32_little_endian_(block->comments[i].length, buffer, entry_length_len);
+		if(write_cb(buffer, 1, entry_length_len, handle) != entry_length_len)
+			return false;
+		if(write_cb(block->comments[i].entry, 1, block->comments[i].length, handle) != block->comments[i].length)
+			return false;
+	}
+
+	return true;
+}
+
+FLAC__bool write_metadata_block_data_cuesheet_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_CueSheet *block)
+{
+	uint32_t i, j, len;
+	FLAC__byte buffer[1024]; /* asserted below that this is big enough */
+
+	FLAC__ASSERT(sizeof(buffer) >= sizeof(FLAC__uint64));
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN)/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN/8);
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN / 8;
+	if(write_cb(block->media_catalog_number, 1, len, handle) != len)
+		return false;
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN / 8;
+	pack_uint64_(block->lead_in, buffer, len);
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+
+	FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) % 8 == 0);
+	len = (FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN + FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN) / 8;
+	memset(buffer, 0, len);
+	if(block->is_cd)
+		buffer[0] |= 0x80;
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN % 8 == 0);
+	len = FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN / 8;
+	pack_uint32_(block->num_tracks, buffer, len);
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+
+	for(i = 0; i < block->num_tracks; i++) {
+		FLAC__StreamMetadata_CueSheet_Track *track = block->tracks + i;
+
+		FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN % 8 == 0);
+		len = FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN / 8;
+		pack_uint64_(track->offset, buffer, len);
+		if(write_cb(buffer, 1, len, handle) != len)
+			return false;
+
+		FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN % 8 == 0);
+		len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN / 8;
+		pack_uint32_(track->number, buffer, len);
+		if(write_cb(buffer, 1, len, handle) != len)
+			return false;
+
+		FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
+		len = FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN / 8;
+		if(write_cb(track->isrc, 1, len, handle) != len)
+			return false;
+
+		FLAC__ASSERT((FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) % 8 == 0);
+		len = (FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN + FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN) / 8;
+		memset(buffer, 0, len);
+		buffer[0] = (track->type << 7) | (track->pre_emphasis << 6);
+		if(write_cb(buffer, 1, len, handle) != len)
+			return false;
+
+		FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN % 8 == 0);
+		len = FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN / 8;
+		pack_uint32_(track->num_indices, buffer, len);
+		if(write_cb(buffer, 1, len, handle) != len)
+			return false;
+
+		for(j = 0; j < track->num_indices; j++) {
+			FLAC__StreamMetadata_CueSheet_Index *indx = track->indices + j;
+
+			FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN % 8 == 0);
+			len = FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN / 8;
+			pack_uint64_(indx->offset, buffer, len);
+			if(write_cb(buffer, 1, len, handle) != len)
+				return false;
+
+			FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN % 8 == 0);
+			len = FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN / 8;
+			pack_uint32_(indx->number, buffer, len);
+			if(write_cb(buffer, 1, len, handle) != len)
+				return false;
+
+			FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN % 8 == 0);
+			len = FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN / 8;
+			memset(buffer, 0, len);
+			if(write_cb(buffer, 1, len, handle) != len)
+				return false;
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool write_metadata_block_data_picture_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Picture *block)
+{
+	uint32_t len;
+	size_t slen;
+	FLAC__byte buffer[4]; /* magic number is asserted below */
+
+	FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_TYPE_LEN%8);
+	FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN%8);
+	FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN%8);
+	FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN%8);
+	FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN%8);
+	FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN%8);
+	FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_COLORS_LEN%8);
+	FLAC__ASSERT(0 == FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN%8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8);
+	FLAC__ASSERT(sizeof(buffer) >= FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN/8);
+
+	len = FLAC__STREAM_METADATA_PICTURE_TYPE_LEN/8;
+	pack_uint32_(block->type, buffer, len);
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+
+	len = FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN/8;
+	slen = strlen(block->mime_type);
+	pack_uint32_(slen, buffer, len);
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+	if(write_cb(block->mime_type, 1, slen, handle) != slen)
+		return false;
+
+	len = FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN/8;
+	slen = strlen((const char *)block->description);
+	pack_uint32_(slen, buffer, len);
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+	if(write_cb(block->description, 1, slen, handle) != slen)
+		return false;
+
+	len = FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN/8;
+	pack_uint32_(block->width, buffer, len);
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+
+	len = FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN/8;
+	pack_uint32_(block->height, buffer, len);
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+
+	len = FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN/8;
+	pack_uint32_(block->depth, buffer, len);
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+
+	len = FLAC__STREAM_METADATA_PICTURE_COLORS_LEN/8;
+	pack_uint32_(block->colors, buffer, len);
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+
+	len = FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN/8;
+	pack_uint32_(block->data_length, buffer, len);
+	if(write_cb(buffer, 1, len, handle) != len)
+		return false;
+	if(write_cb(block->data, 1, block->data_length, handle) != block->data_length)
+		return false;
+
+	return true;
+}
+
+FLAC__bool write_metadata_block_data_unknown_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Write write_cb, const FLAC__StreamMetadata_Unknown *block, uint32_t block_length)
+{
+	if(write_cb(block->data, 1, block_length, handle) != block_length)
+		return false;
+
+	return true;
+}
+
+FLAC__bool write_metadata_block_stationary_(FLAC__Metadata_SimpleIterator *iterator, const FLAC__StreamMetadata *block)
+{
+	if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+		return false;
+	}
+
+	if(!write_metadata_block_header_(iterator->file, &iterator->status, block))
+		return false;
+
+	if(!write_metadata_block_data_(iterator->file, &iterator->status, block))
+		return false;
+
+	if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+		return false;
+	}
+
+	return read_metadata_block_header_(iterator);
+}
+
+FLAC__bool write_metadata_block_stationary_with_padding_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, uint32_t padding_length, FLAC__bool padding_is_last)
+{
+	FLAC__StreamMetadata *padding;
+
+	if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+		return false;
+	}
+
+	block->is_last = false;
+
+	if(!write_metadata_block_header_(iterator->file, &iterator->status, block))
+		return false;
+
+	if(!write_metadata_block_data_(iterator->file, &iterator->status, block))
+		return false;
+
+	if(0 == (padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING)))
+		return FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+
+	padding->is_last = padding_is_last;
+	padding->length = padding_length;
+
+	if(!write_metadata_block_header_(iterator->file, &iterator->status, padding)) {
+		FLAC__metadata_object_delete(padding);
+		return false;
+	}
+
+	if(!write_metadata_block_data_(iterator->file, &iterator->status, padding)) {
+		FLAC__metadata_object_delete(padding);
+		return false;
+	}
+
+	FLAC__metadata_object_delete(padding);
+
+	if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+		return false;
+	}
+
+	return read_metadata_block_header_(iterator);
+}
+
+FLAC__bool rewrite_whole_file_(FLAC__Metadata_SimpleIterator *iterator, FLAC__StreamMetadata *block, FLAC__bool append)
+{
+	FILE *tempfile = NULL;
+	char *tempfilename = NULL;
+	int fixup_is_last_code = 0; /* 0 => no need to change any is_last flags */
+	FLAC__off_t fixup_is_last_flag_offset = -1;
+
+	FLAC__ASSERT(0 != block || append == false);
+
+	if(iterator->is_last) {
+		if(append) {
+			fixup_is_last_code = 1; /* 1 => clear the is_last flag at the following offset */
+			fixup_is_last_flag_offset = iterator->offset[iterator->depth];
+		}
+		else if(0 == block) {
+			simple_iterator_push_(iterator);
+			if(!FLAC__metadata_simple_iterator_prev(iterator)) {
+				(void)simple_iterator_pop_(iterator);
+				return false;
+			}
+			fixup_is_last_code = -1; /* -1 => set the is_last the flag at the following offset */
+			fixup_is_last_flag_offset = iterator->offset[iterator->depth];
+			if(!simple_iterator_pop_(iterator))
+				return false;
+		}
+	}
+
+	if(!simple_iterator_copy_file_prefix_(iterator, &tempfile, &tempfilename, append))
+		return false;
+
+	if(0 != block) {
+		if(!write_metadata_block_header_(tempfile, &iterator->status, block)) {
+			cleanup_tempfile_(&tempfile, &tempfilename);
+			return false;
+		}
+
+		if(!write_metadata_block_data_(tempfile, &iterator->status, block)) {
+			cleanup_tempfile_(&tempfile, &tempfilename);
+			return false;
+		}
+	}
+
+	if(!simple_iterator_copy_file_postfix_(iterator, &tempfile, &tempfilename, fixup_is_last_code, fixup_is_last_flag_offset, block==0))
+		return false;
+
+	if(append)
+		return FLAC__metadata_simple_iterator_next(iterator);
+
+	return true;
+}
+
+void simple_iterator_push_(FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(iterator->depth+1 < SIMPLE_ITERATOR_MAX_PUSH_DEPTH);
+	iterator->offset[iterator->depth+1] = iterator->offset[iterator->depth];
+	iterator->depth++;
+}
+
+FLAC__bool simple_iterator_pop_(FLAC__Metadata_SimpleIterator *iterator)
+{
+	FLAC__ASSERT(iterator->depth > 0);
+	iterator->depth--;
+	if(0 != fseeko(iterator->file, iterator->offset[iterator->depth], SEEK_SET)) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+		return false;
+	}
+
+	return read_metadata_block_header_(iterator);
+}
+
+/* return meanings:
+ * 0: ok
+ * 1: read error
+ * 2: seek error
+ * 3: not a FLAC file
+ */
+uint32_t seek_to_first_metadata_block_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Seek seek_cb)
+{
+	FLAC__byte buffer[4];
+	size_t n;
+	uint32_t i;
+
+	FLAC__ASSERT(FLAC__STREAM_SYNC_LENGTH == sizeof(buffer));
+
+	/* skip any id3v2 tag */
+	errno = 0;
+	n = read_cb(buffer, 1, 4, handle);
+	if(errno)
+		return 1;
+	else if(n != 4)
+		return 3;
+	else if(0 == memcmp(buffer, "ID3", 3)) {
+		uint32_t tag_length = 0;
+
+		/* skip to the tag length */
+		if(seek_cb(handle, 2, SEEK_CUR) < 0)
+			return 2;
+
+		/* read the length */
+		for(i = 0; i < 4; i++) {
+			if(read_cb(buffer, 1, 1, handle) < 1 || buffer[0] & 0x80)
+				return 1;
+			tag_length <<= 7;
+			tag_length |= (buffer[0] & 0x7f);
+		}
+
+		/* skip the rest of the tag */
+		if(seek_cb(handle, tag_length, SEEK_CUR) < 0)
+			return 2;
+
+		/* read the stream sync code */
+		errno = 0;
+		n = read_cb(buffer, 1, 4, handle);
+		if(errno)
+			return 1;
+		else if(n != 4)
+			return 3;
+	}
+
+	/* check for the fLaC signature */
+	if(0 == memcmp(FLAC__STREAM_SYNC_STRING, buffer, FLAC__STREAM_SYNC_LENGTH))
+		return 0;
+	else
+		return 3;
+}
+
+uint32_t seek_to_first_metadata_block_(FILE *f)
+{
+	return seek_to_first_metadata_block_cb_((FLAC__IOHandle)f, (FLAC__IOCallback_Read)fread, fseek_wrapper_);
+}
+
+FLAC__bool simple_iterator_copy_file_prefix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, FLAC__bool append)
+{
+	const FLAC__off_t offset_end = append? iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length : iterator->offset[iterator->depth];
+
+	if(0 != fseeko(iterator->file, 0, SEEK_SET)) {
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+		return false;
+	}
+	if(!open_tempfile_(iterator->filename, iterator->tempfile_path_prefix, tempfile, tempfilename, &iterator->status)) {
+		cleanup_tempfile_(tempfile, tempfilename);
+		return false;
+	}
+	if(!copy_n_bytes_from_file_(iterator->file, *tempfile, offset_end, &iterator->status)) {
+		cleanup_tempfile_(tempfile, tempfilename);
+		return false;
+	}
+
+	return true;
+}
+
+FLAC__bool simple_iterator_copy_file_postfix_(FLAC__Metadata_SimpleIterator *iterator, FILE **tempfile, char **tempfilename, int fixup_is_last_code, FLAC__off_t fixup_is_last_flag_offset, FLAC__bool backup)
+{
+	FLAC__off_t save_offset = iterator->offset[iterator->depth];
+	FLAC__ASSERT(0 != *tempfile);
+
+	if(0 != fseeko(iterator->file, save_offset + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length, SEEK_SET)) {
+		cleanup_tempfile_(tempfile, tempfilename);
+		iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+		return false;
+	}
+	if(!copy_remaining_bytes_from_file_(iterator->file, *tempfile, &iterator->status)) {
+		cleanup_tempfile_(tempfile, tempfilename);
+		return false;
+	}
+
+	if(fixup_is_last_code != 0) {
+		/*
+		 * if code == 1, it means a block was appended to the end so
+		 *   we have to clear the is_last flag of the previous block
+		 * if code == -1, it means the last block was deleted so
+		 *   we have to set the is_last flag of the previous block
+		 */
+		/* MAGIC NUMBERs here; we know the is_last flag is the high bit of the byte at this location */
+		FLAC__byte x;
+		if(0 != fseeko(*tempfile, fixup_is_last_flag_offset, SEEK_SET)) {
+			cleanup_tempfile_(tempfile, tempfilename);
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+			return false;
+		}
+		if(fread(&x, 1, 1, *tempfile) != 1) {
+			cleanup_tempfile_(tempfile, tempfilename);
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+			return false;
+		}
+		if(fixup_is_last_code > 0) {
+			FLAC__ASSERT(x & 0x80);
+			x &= 0x7f;
+		}
+		else {
+			FLAC__ASSERT(!(x & 0x80));
+			x |= 0x80;
+		}
+		if(0 != fseeko(*tempfile, fixup_is_last_flag_offset, SEEK_SET)) {
+			cleanup_tempfile_(tempfile, tempfilename);
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR;
+			return false;
+		}
+		if(local__fwrite(&x, 1, 1, *tempfile) != 1) {
+			cleanup_tempfile_(tempfile, tempfilename);
+			iterator->status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+			return false;
+		}
+	}
+
+	(void)fclose(iterator->file);
+
+	if(!transport_tempfile_(iterator->filename, tempfile, tempfilename, &iterator->status))
+		return false;
+
+	if(iterator->has_stats)
+		set_file_stats_(iterator->filename, &iterator->stats);
+
+	if(!simple_iterator_prime_input_(iterator, !iterator->is_writable))
+		return false;
+	if(backup) {
+		while(iterator->offset[iterator->depth] + (FLAC__off_t)FLAC__STREAM_METADATA_HEADER_LENGTH + (FLAC__off_t)iterator->length < save_offset)
+			if(!FLAC__metadata_simple_iterator_next(iterator))
+				return false;
+		return true;
+	}
+	else {
+		/* move the iterator to it's original block faster by faking a push, then doing a pop_ */
+		FLAC__ASSERT(iterator->depth == 0);
+		iterator->offset[0] = save_offset;
+		iterator->depth++;
+		return simple_iterator_pop_(iterator);
+	}
+}
+
+FLAC__bool copy_n_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status)
+{
+	FLAC__byte buffer[8192];
+	size_t n;
+
+	FLAC__ASSERT(bytes >= 0);
+	while(bytes > 0) {
+		n = flac_min(sizeof(buffer), (size_t)bytes);
+		if(fread(buffer, 1, n, file) != n) {
+			*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+			return false;
+		}
+		if(local__fwrite(buffer, 1, n, tempfile) != n) {
+			*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+			return false;
+		}
+		bytes -= n;
+	}
+
+	return true;
+}
+
+FLAC__bool copy_n_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__off_t bytes, FLAC__Metadata_SimpleIteratorStatus *status)
+{
+	FLAC__byte buffer[8192];
+	size_t n;
+
+	FLAC__ASSERT(bytes >= 0);
+	while(bytes > 0) {
+		n = flac_min(sizeof(buffer), (size_t)bytes);
+		if(read_cb(buffer, 1, n, handle) != n) {
+			*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+			return false;
+		}
+		if(temp_write_cb(buffer, 1, n, temp_handle) != n) {
+			*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+			return false;
+		}
+		bytes -= n;
+	}
+
+	return true;
+}
+
+FLAC__bool copy_remaining_bytes_from_file_(FILE *file, FILE *tempfile, FLAC__Metadata_SimpleIteratorStatus *status)
+{
+	FLAC__byte buffer[8192];
+	size_t n;
+
+	while(!feof(file)) {
+		n = fread(buffer, 1, sizeof(buffer), file);
+		if(n == 0 && !feof(file)) {
+			*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+			return false;
+		}
+		if(n > 0 && local__fwrite(buffer, 1, n, tempfile) != n) {
+			*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+			return false;
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool copy_remaining_bytes_from_file_cb_(FLAC__IOHandle handle, FLAC__IOCallback_Read read_cb, FLAC__IOCallback_Eof eof_cb, FLAC__IOHandle temp_handle, FLAC__IOCallback_Write temp_write_cb, FLAC__Metadata_SimpleIteratorStatus *status)
+{
+	FLAC__byte buffer[8192];
+	size_t n;
+
+	while(!eof_cb(handle)) {
+		n = read_cb(buffer, 1, sizeof(buffer), handle);
+		if(n == 0 && !eof_cb(handle)) {
+			*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR;
+			return false;
+		}
+		if(n > 0 && temp_write_cb(buffer, 1, n, temp_handle) != n) {
+			*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR;
+			return false;
+		}
+	}
+
+	return true;
+}
+
+static int
+local_snprintf(char *str, size_t size, const char *fmt, ...)
+{
+	va_list va;
+	int rc;
+
+#if defined _MSC_VER
+	if (size == 0)
+		return 1024;
+#endif
+
+	va_start (va, fmt);
+
+#if defined _MSC_VER
+	rc = vsnprintf_s (str, size, _TRUNCATE, fmt, va);
+	if (rc < 0)
+		rc = size - 1;
+#elif defined __MINGW32__
+	rc = __mingw_vsnprintf (str, size, fmt, va);
+#else
+	rc = vsnprintf (str, size, fmt, va);
+#endif
+	va_end (va);
+
+	return rc;
+}
+
+FLAC__bool open_tempfile_(const char *filename, const char *tempfile_path_prefix, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status)
+{
+	static const char *tempfile_suffix = ".metadata_edit";
+	if(0 == tempfile_path_prefix) {
+		size_t dest_len = strlen(filename) + strlen(tempfile_suffix) + 1;
+		if(0 == (*tempfilename = safe_malloc_(dest_len))) {
+			*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+			return false;
+		}
+		local_snprintf(*tempfilename, dest_len, "%s%s", filename, tempfile_suffix);
+	}
+	else {
+		const char *p = strrchr(filename, '/');
+		size_t dest_len;
+		if(0 == p)
+			p = filename;
+		else
+			p++;
+
+		dest_len = strlen(tempfile_path_prefix) + strlen(p) + strlen(tempfile_suffix) + 2;
+
+		if(0 == (*tempfilename = safe_malloc_(dest_len))) {
+			*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR;
+			return false;
+		}
+		local_snprintf(*tempfilename, dest_len, "%s/%s%s", tempfile_path_prefix, p, tempfile_suffix);
+	}
+
+	if(0 == (*tempfile = flac_fopen(*tempfilename, "w+b"))) {
+		*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE;
+		return false;
+	}
+
+	return true;
+}
+
+FLAC__bool transport_tempfile_(const char *filename, FILE **tempfile, char **tempfilename, FLAC__Metadata_SimpleIteratorStatus *status)
+{
+	FLAC__ASSERT(0 != filename);
+	FLAC__ASSERT(0 != tempfile);
+	FLAC__ASSERT(0 != *tempfile);
+	FLAC__ASSERT(0 != tempfilename);
+	FLAC__ASSERT(0 != *tempfilename);
+	FLAC__ASSERT(0 != status);
+
+	(void)fclose(*tempfile);
+	*tempfile = 0;
+
+#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__ || defined __EMX__
+	/* on some flavors of windows, flac_rename() will fail if the destination already exists */
+	if(flac_unlink(filename) < 0) {
+		cleanup_tempfile_(tempfile, tempfilename);
+		*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR;
+		return false;
+	}
+#endif
+
+	/*@@@ to fully support the tempfile_path_prefix we need to update this piece to actually copy across filesystems instead of just flac_rename(): */
+	if(0 != flac_rename(*tempfilename, filename)) {
+		cleanup_tempfile_(tempfile, tempfilename);
+		*status = FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR;
+		return false;
+	}
+
+	cleanup_tempfile_(tempfile, tempfilename);
+
+	return true;
+}
+
+void cleanup_tempfile_(FILE **tempfile, char **tempfilename)
+{
+	if(0 != *tempfile) {
+		(void)fclose(*tempfile);
+		*tempfile = 0;
+	}
+
+	if(0 != *tempfilename) {
+		(void)flac_unlink(*tempfilename);
+		free(*tempfilename);
+		*tempfilename = 0;
+	}
+}
+
+FLAC__bool get_file_stats_(const char *filename, struct flac_stat_s *stats)
+{
+	FLAC__ASSERT(0 != filename);
+	FLAC__ASSERT(0 != stats);
+	return (0 == flac_stat(filename, stats));
+}
+
+void set_file_stats_(const char *filename, struct flac_stat_s *stats)
+{
+#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200809L) && !defined(_WIN32)
+	struct timespec srctime[2] = {};
+	srctime[0].tv_sec = stats->st_atime;
+	srctime[1].tv_sec = stats->st_mtime;
+#else
+	struct utimbuf srctime;
+	srctime.actime = stats->st_atime;
+	srctime.modtime = stats->st_mtime;
+#endif
+
+	FLAC__ASSERT(0 != filename);
+	FLAC__ASSERT(0 != stats);
+
+	(void)flac_chmod(filename, stats->st_mode);
+	(void)flac_utime(filename, &srctime);
+#if !defined _MSC_VER && !defined __BORLANDC__ && !defined __MINGW32__
+	FLAC_CHECK_RETURN(chown(filename, stats->st_uid, -1));
+	FLAC_CHECK_RETURN(chown(filename, -1, stats->st_gid));
+#endif
+}
+
+int fseek_wrapper_(FLAC__IOHandle handle, FLAC__int64 offset, int whence)
+{
+	return fseeko((FILE*)handle, (FLAC__off_t)offset, whence);
+}
+
+FLAC__int64 ftell_wrapper_(FLAC__IOHandle handle)
+{
+	return ftello((FILE*)handle);
+}
+
+FLAC__Metadata_ChainStatus get_equivalent_status_(FLAC__Metadata_SimpleIteratorStatus status)
+{
+	switch(status) {
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_OK:
+			return FLAC__METADATA_CHAIN_STATUS_OK;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ILLEGAL_INPUT:
+			return FLAC__METADATA_CHAIN_STATUS_ILLEGAL_INPUT;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_ERROR_OPENING_FILE:
+			return FLAC__METADATA_CHAIN_STATUS_ERROR_OPENING_FILE;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_A_FLAC_FILE:
+			return FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_NOT_WRITABLE:
+			return FLAC__METADATA_CHAIN_STATUS_NOT_WRITABLE;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_BAD_METADATA:
+			return FLAC__METADATA_CHAIN_STATUS_BAD_METADATA;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_READ_ERROR:
+			return FLAC__METADATA_CHAIN_STATUS_READ_ERROR;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_SEEK_ERROR:
+			return FLAC__METADATA_CHAIN_STATUS_SEEK_ERROR;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_WRITE_ERROR:
+			return FLAC__METADATA_CHAIN_STATUS_WRITE_ERROR;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_RENAME_ERROR:
+			return FLAC__METADATA_CHAIN_STATUS_RENAME_ERROR;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_UNLINK_ERROR:
+			return FLAC__METADATA_CHAIN_STATUS_UNLINK_ERROR;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_MEMORY_ALLOCATION_ERROR:
+			return FLAC__METADATA_CHAIN_STATUS_MEMORY_ALLOCATION_ERROR;
+		case FLAC__METADATA_SIMPLE_ITERATOR_STATUS_INTERNAL_ERROR:
+		default:
+			return FLAC__METADATA_CHAIN_STATUS_INTERNAL_ERROR;
+	}
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/metadata_object.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/metadata_object.c
new file mode 100644
index 00000000..c1e54ab2
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/metadata_object.c
@@ -0,0 +1,1857 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "private/metadata.h"
+#include "private/memory.h"
+
+#include "FLAC/assert.h"
+#include "share/alloc.h"
+#include "share/compat.h"
+
+/* Alias the first (in share/alloc.h) to the second (in src/libFLAC/memory.c). */
+#define safe_malloc_mul_2op_ safe_malloc_mul_2op_p
+
+
+/****************************************************************************
+ *
+ * Local routines
+ *
+ ***************************************************************************/
+
+/* copy bytes:
+ *  from = NULL  && bytes = 0
+ *       to <- NULL
+ *  from != NULL && bytes > 0
+ *       to <- copy of from
+ *  else ASSERT
+ * malloc error leaves 'to' unchanged
+ */
+static FLAC__bool copy_bytes_(FLAC__byte **to, const FLAC__byte *from, uint32_t bytes)
+{
+	FLAC__ASSERT(to != NULL);
+	if (bytes > 0 && from != NULL) {
+		FLAC__byte *x;
+		if ((x = safe_malloc_(bytes)) == NULL)
+			return false;
+		memcpy(x, from, bytes);
+		*to = x;
+	}
+	else {
+		*to = 0;
+	}
+	return true;
+}
+
+#if 0 /* UNUSED */
+/* like copy_bytes_(), but free()s the original '*to' if the copy succeeds and the original '*to' is non-NULL */
+static FLAC__bool free_copy_bytes_(FLAC__byte **to, const FLAC__byte *from, uint32_t bytes)
+{
+	FLAC__byte *copy;
+	FLAC__ASSERT(to != NULL);
+	if (copy_bytes_(&copy, from, bytes)) {
+		free(*to);
+		*to = copy;
+		return true;
+	}
+	else
+		return false;
+}
+#endif
+
+/* reallocate entry to 1 byte larger and add a terminating NUL */
+/* realloc() failure leaves entry unchanged */
+static FLAC__bool ensure_null_terminated_(FLAC__byte **entry, uint32_t length)
+{
+	FLAC__byte *x = safe_realloc_nofree_add_2op_(*entry, length, /*+*/1);
+	if (x != NULL) {
+		x[length] = '\0';
+		*entry = x;
+		return true;
+	}
+	else
+		return false;
+}
+
+/* copies the NUL-terminated C-string 'from' to '*to', leaving '*to'
+ * unchanged if malloc fails, free()ing the original '*to' if it
+ * succeeds and the original '*to' was not NULL
+ */
+static FLAC__bool copy_cstring_(char **to, const char *from)
+{
+	char *copy = strdup(from);
+	FLAC__ASSERT(to != NULL);
+	if (copy) {
+		free(*to);
+		*to = copy;
+		return true;
+	}
+	else
+		return false;
+}
+
+static FLAC__bool copy_vcentry_(FLAC__StreamMetadata_VorbisComment_Entry *to, const FLAC__StreamMetadata_VorbisComment_Entry *from)
+{
+	to->length = from->length;
+	if (from->entry == 0) {
+		FLAC__ASSERT(from->length == 0);
+		if ((to->entry = safe_malloc_(1)) == NULL)
+			return false;
+		to->entry[0] = '\0';
+	}
+	else {
+		FLAC__byte *x;
+		FLAC__ASSERT(from->length > 0);
+		if ((x = safe_malloc_add_2op_(from->length, /*+*/1)) == NULL)
+			return false;
+		memcpy(x, from->entry, from->length);
+		x[from->length] = '\0';
+		to->entry = x;
+	}
+	return true;
+}
+
+static FLAC__bool copy_track_(FLAC__StreamMetadata_CueSheet_Track *to, const FLAC__StreamMetadata_CueSheet_Track *from)
+{
+	memcpy(to, from, sizeof(FLAC__StreamMetadata_CueSheet_Track));
+	if (from->indices == 0) {
+		FLAC__ASSERT(from->num_indices == 0);
+	}
+	else {
+		FLAC__StreamMetadata_CueSheet_Index *x;
+		FLAC__ASSERT(from->num_indices > 0);
+		if ((x = safe_malloc_mul_2op_p(from->num_indices, /*times*/sizeof(FLAC__StreamMetadata_CueSheet_Index))) == NULL)
+			return false;
+		memcpy(x, from->indices, from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index));
+		to->indices = x;
+	}
+	return true;
+}
+
+static void seektable_calculate_length_(FLAC__StreamMetadata *object)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+
+	object->length = object->data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
+}
+
+static FLAC__StreamMetadata_SeekPoint *seekpoint_array_new_(uint32_t num_points)
+{
+	FLAC__StreamMetadata_SeekPoint *object_array;
+
+	FLAC__ASSERT(num_points > 0);
+
+	object_array = safe_malloc_mul_2op_p(num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint));
+
+	if (object_array != NULL) {
+		uint32_t i;
+		for (i = 0; i < num_points; i++) {
+			object_array[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
+			object_array[i].stream_offset = 0;
+			object_array[i].frame_samples = 0;
+		}
+	}
+
+	return object_array;
+}
+
+static void vorbiscomment_calculate_length_(FLAC__StreamMetadata *object)
+{
+	uint32_t i;
+
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+
+	object->length = (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN) / 8;
+	object->length += object->data.vorbis_comment.vendor_string.length;
+	object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8;
+	for (i = 0; i < object->data.vorbis_comment.num_comments; i++) {
+		object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8);
+		object->length += object->data.vorbis_comment.comments[i].length;
+	}
+}
+
+static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_new_(uint32_t num_comments)
+{
+	FLAC__ASSERT(num_comments > 0);
+
+	return safe_calloc_(num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry));
+}
+
+static void vorbiscomment_entry_array_delete_(FLAC__StreamMetadata_VorbisComment_Entry *object_array, uint32_t num_comments)
+{
+	uint32_t i;
+
+	FLAC__ASSERT(object_array != NULL && num_comments > 0);
+
+	for (i = 0; i < num_comments; i++)
+		free(object_array[i].entry);
+
+	free(object_array);
+}
+
+static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_copy_(const FLAC__StreamMetadata_VorbisComment_Entry *object_array, uint32_t num_comments)
+{
+	FLAC__StreamMetadata_VorbisComment_Entry *return_array;
+
+	FLAC__ASSERT(object_array != NULL);
+	FLAC__ASSERT(num_comments > 0);
+
+	return_array = vorbiscomment_entry_array_new_(num_comments);
+
+	if (return_array != NULL) {
+		uint32_t i;
+
+		for (i = 0; i < num_comments; i++) {
+			if (!copy_vcentry_(return_array+i, object_array+i)) {
+				vorbiscomment_entry_array_delete_(return_array, num_comments);
+				return 0;
+			}
+		}
+	}
+
+	return return_array;
+}
+
+static FLAC__bool vorbiscomment_set_entry_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry *dest, const FLAC__StreamMetadata_VorbisComment_Entry *src, FLAC__bool copy)
+{
+	FLAC__byte *save;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(dest != NULL);
+	FLAC__ASSERT(src != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+	FLAC__ASSERT((src->entry != NULL && src->length > 0) || (src->entry == NULL && src->length == 0));
+
+	save = dest->entry;
+
+	if (src->entry != NULL) {
+		if (copy) {
+			/* do the copy first so that if we fail we leave the dest object untouched */
+			if (!copy_vcentry_(dest, src))
+				return false;
+		}
+		else {
+			/* we have to make sure that the string we're taking over is null-terminated */
+
+			/*
+			 * Stripping the const from src->entry is OK since we're taking
+			 * ownership of the pointer.  This is a hack around a deficiency
+			 * in the API where the same function is used for 'copy' and
+			 * 'own', but the source entry is a const pointer.  If we were
+			 * precise, the 'own' flavor would be a separate function with a
+			 * non-const source pointer.  But it's not, so we hack away.
+			 */
+			if (!ensure_null_terminated_((FLAC__byte**)(&src->entry), src->length))
+				return false;
+			*dest = *src;
+		}
+	}
+	else {
+		/* the src is null */
+		*dest = *src;
+	}
+
+	free(save);
+
+	vorbiscomment_calculate_length_(object);
+	return true;
+}
+
+static int vorbiscomment_find_entry_from_(const FLAC__StreamMetadata *object, uint32_t offset, const char *field_name, uint32_t field_name_length)
+{
+	uint32_t i;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+	FLAC__ASSERT(field_name != NULL);
+
+	for (i = offset; i < object->data.vorbis_comment.num_comments; i++) {
+		if (FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length))
+			return (int)i;
+	}
+
+	return -1;
+}
+
+static void cuesheet_calculate_length_(FLAC__StreamMetadata *object)
+{
+	uint32_t i;
+
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
+
+	object->length = (
+		FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN +
+		FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN +
+		FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN +
+		FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN +
+		FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN
+	) / 8;
+
+	object->length += object->data.cue_sheet.num_tracks * (
+		FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN +
+		FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN +
+		FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN +
+		FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN +
+		FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN +
+		FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN +
+		FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN
+	) / 8;
+
+	for (i = 0; i < object->data.cue_sheet.num_tracks; i++) {
+		object->length += object->data.cue_sheet.tracks[i].num_indices * (
+			FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN +
+			FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN
+		) / 8;
+	}
+}
+
+static FLAC__StreamMetadata_CueSheet_Index *cuesheet_track_index_array_new_(uint32_t num_indices)
+{
+	FLAC__ASSERT(num_indices > 0);
+
+	return safe_calloc_(num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index));
+}
+
+static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_new_(uint32_t num_tracks)
+{
+	FLAC__ASSERT(num_tracks > 0);
+
+	return safe_calloc_(num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track));
+}
+
+static void cuesheet_track_array_delete_(FLAC__StreamMetadata_CueSheet_Track *object_array, uint32_t num_tracks)
+{
+	uint32_t i;
+
+	FLAC__ASSERT(object_array != NULL && num_tracks > 0);
+
+	for (i = 0; i < num_tracks; i++) {
+		if (object_array[i].indices != 0) {
+			FLAC__ASSERT(object_array[i].num_indices > 0);
+			free(object_array[i].indices);
+		}
+	}
+
+	free(object_array);
+}
+
+static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_copy_(const FLAC__StreamMetadata_CueSheet_Track *object_array, uint32_t num_tracks)
+{
+	FLAC__StreamMetadata_CueSheet_Track *return_array;
+
+	FLAC__ASSERT(object_array != NULL);
+	FLAC__ASSERT(num_tracks > 0);
+
+	return_array = cuesheet_track_array_new_(num_tracks);
+
+	if (return_array != NULL) {
+		uint32_t i;
+
+		for (i = 0; i < num_tracks; i++) {
+			if (!copy_track_(return_array+i, object_array+i)) {
+				cuesheet_track_array_delete_(return_array, num_tracks);
+				return 0;
+			}
+		}
+	}
+
+	return return_array;
+}
+
+static FLAC__bool cuesheet_set_track_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_CueSheet_Track *dest, const FLAC__StreamMetadata_CueSheet_Track *src, FLAC__bool copy)
+{
+	FLAC__StreamMetadata_CueSheet_Index *save;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(dest != NULL);
+	FLAC__ASSERT(src != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
+	FLAC__ASSERT((src->indices != NULL && src->num_indices > 0) || (src->indices == NULL && src->num_indices == 0));
+
+	save = dest->indices;
+
+	/* do the copy first so that if we fail we leave the object untouched */
+	if (copy) {
+		if (!copy_track_(dest, src))
+			return false;
+	}
+	else {
+		*dest = *src;
+	}
+
+	free(save);
+
+	cuesheet_calculate_length_(object);
+	return true;
+}
+
+
+/****************************************************************************
+ *
+ * Metadata object routines
+ *
+ ***************************************************************************/
+
+FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type)
+{
+	FLAC__StreamMetadata *object;
+
+	if (type > FLAC__MAX_METADATA_TYPE)
+		return 0;
+
+	object = calloc(1, sizeof(FLAC__StreamMetadata));
+	if (object != NULL) {
+		object->is_last = false;
+		object->type = type;
+		switch(type) {
+			case FLAC__METADATA_TYPE_STREAMINFO:
+				object->length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH;
+				break;
+			case FLAC__METADATA_TYPE_PADDING:
+				/* calloc() took care of this for us:
+				object->length = 0;
+				*/
+				break;
+			case FLAC__METADATA_TYPE_APPLICATION:
+				object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
+				/* calloc() took care of this for us:
+				object->data.application.data = 0;
+				*/
+				break;
+			case FLAC__METADATA_TYPE_SEEKTABLE:
+				/* calloc() took care of this for us:
+				object->length = 0;
+				object->data.seek_table.num_points = 0;
+				object->data.seek_table.points = 0;
+				*/
+				break;
+			case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+				object->data.vorbis_comment.vendor_string.length = (uint32_t)strlen(FLAC__VENDOR_STRING);
+				if (!copy_bytes_(&object->data.vorbis_comment.vendor_string.entry, (const FLAC__byte*)FLAC__VENDOR_STRING, object->data.vorbis_comment.vendor_string.length+1)) {
+					free(object);
+					return 0;
+				}
+				vorbiscomment_calculate_length_(object);
+				break;
+			case FLAC__METADATA_TYPE_CUESHEET:
+				cuesheet_calculate_length_(object);
+				break;
+			case FLAC__METADATA_TYPE_PICTURE:
+				object->length = (
+					FLAC__STREAM_METADATA_PICTURE_TYPE_LEN +
+					FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN + /* empty mime_type string */
+					FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN + /* empty description string */
+					FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN +
+					FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN +
+					FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN +
+					FLAC__STREAM_METADATA_PICTURE_COLORS_LEN +
+					FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN +
+					0 /* no data */
+				) / 8;
+				object->data.picture.type = FLAC__STREAM_METADATA_PICTURE_TYPE_OTHER;
+				object->data.picture.mime_type = 0;
+				object->data.picture.description = 0;
+				/* calloc() took care of this for us:
+				object->data.picture.width = 0;
+				object->data.picture.height = 0;
+				object->data.picture.depth = 0;
+				object->data.picture.colors = 0;
+				object->data.picture.data_length = 0;
+				object->data.picture.data = 0;
+				*/
+				/* now initialize mime_type and description with empty strings to make things easier on the client */
+				if (!copy_cstring_(&object->data.picture.mime_type, "")) {
+					free(object);
+					return 0;
+				}
+				if (!copy_cstring_((char**)(&object->data.picture.description), "")) {
+					free(object->data.picture.mime_type);
+					free(object);
+					return 0;
+				}
+				break;
+			default:
+				/* calloc() took care of this for us:
+				object->length = 0;
+				object->data.unknown.data = 0;
+				*/
+				break;
+		}
+	}
+
+	return object;
+}
+
+FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object)
+{
+	FLAC__StreamMetadata *to;
+
+	FLAC__ASSERT(object != NULL);
+
+	if ((to = FLAC__metadata_object_new(object->type)) != NULL) {
+		to->is_last = object->is_last;
+		to->type = object->type;
+		to->length = object->length;
+		switch(to->type) {
+			case FLAC__METADATA_TYPE_STREAMINFO:
+				memcpy(&to->data.stream_info, &object->data.stream_info, sizeof(FLAC__StreamMetadata_StreamInfo));
+				break;
+			case FLAC__METADATA_TYPE_PADDING:
+				break;
+			case FLAC__METADATA_TYPE_APPLICATION:
+				if (to->length < FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8) { /* underflow check */
+					FLAC__metadata_object_delete(to);
+					return 0;
+				}
+				memcpy(&to->data.application.id, &object->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8);
+				if (!copy_bytes_(&to->data.application.data, object->data.application.data, object->length - FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)) {
+					FLAC__metadata_object_delete(to);
+					return 0;
+				}
+				break;
+			case FLAC__METADATA_TYPE_SEEKTABLE:
+				to->data.seek_table.num_points = object->data.seek_table.num_points;
+				if (to->data.seek_table.num_points > UINT32_MAX / sizeof(FLAC__StreamMetadata_SeekPoint)) { /* overflow check */
+					FLAC__metadata_object_delete(to);
+					return 0;
+				}
+				if (!copy_bytes_((FLAC__byte**)&to->data.seek_table.points, (FLAC__byte*)object->data.seek_table.points, object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint))) {
+					FLAC__metadata_object_delete(to);
+					return 0;
+				}
+				break;
+			case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+				if (to->data.vorbis_comment.vendor_string.entry != NULL) {
+					free(to->data.vorbis_comment.vendor_string.entry);
+					to->data.vorbis_comment.vendor_string.entry = 0;
+				}
+				if (!copy_vcentry_(&to->data.vorbis_comment.vendor_string, &object->data.vorbis_comment.vendor_string)) {
+					FLAC__metadata_object_delete(to);
+					return 0;
+				}
+				if (object->data.vorbis_comment.num_comments == 0) {
+					to->data.vorbis_comment.comments = 0;
+				}
+				else {
+					to->data.vorbis_comment.comments = vorbiscomment_entry_array_copy_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments);
+					if (to->data.vorbis_comment.comments == NULL) {
+						to->data.vorbis_comment.num_comments = 0;
+						FLAC__metadata_object_delete(to);
+						return 0;
+					}
+				}
+				to->data.vorbis_comment.num_comments = object->data.vorbis_comment.num_comments;
+				break;
+			case FLAC__METADATA_TYPE_CUESHEET:
+				memcpy(&to->data.cue_sheet, &object->data.cue_sheet, sizeof(FLAC__StreamMetadata_CueSheet));
+				if (object->data.cue_sheet.num_tracks == 0) {
+					FLAC__ASSERT(object->data.cue_sheet.tracks == NULL);
+				}
+				else {
+					FLAC__ASSERT(object->data.cue_sheet.tracks != 0);
+					to->data.cue_sheet.tracks = cuesheet_track_array_copy_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks);
+					if (to->data.cue_sheet.tracks == NULL) {
+						FLAC__metadata_object_delete(to);
+						return 0;
+					}
+				}
+				break;
+			case FLAC__METADATA_TYPE_PICTURE:
+				to->data.picture.type = object->data.picture.type;
+				if (!copy_cstring_(&to->data.picture.mime_type, object->data.picture.mime_type)) {
+					FLAC__metadata_object_delete(to);
+					return 0;
+				}
+				if (!copy_cstring_((char**)(&to->data.picture.description), (const char*)object->data.picture.description)) {
+					FLAC__metadata_object_delete(to);
+					return 0;
+				}
+				to->data.picture.width = object->data.picture.width;
+				to->data.picture.height = object->data.picture.height;
+				to->data.picture.depth = object->data.picture.depth;
+				to->data.picture.colors = object->data.picture.colors;
+				to->data.picture.data_length = object->data.picture.data_length;
+				if (!copy_bytes_((&to->data.picture.data), object->data.picture.data, object->data.picture.data_length)) {
+					FLAC__metadata_object_delete(to);
+					return 0;
+				}
+				break;
+			default:
+				if (!copy_bytes_(&to->data.unknown.data, object->data.unknown.data, object->length)) {
+					FLAC__metadata_object_delete(to);
+					return 0;
+				}
+				break;
+		}
+	}
+
+	return to;
+}
+
+void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object)
+{
+	FLAC__ASSERT(object != NULL);
+
+	switch(object->type) {
+		case FLAC__METADATA_TYPE_STREAMINFO:
+		case FLAC__METADATA_TYPE_PADDING:
+			break;
+		case FLAC__METADATA_TYPE_APPLICATION:
+			if (object->data.application.data != NULL) {
+				free(object->data.application.data);
+				object->data.application.data = NULL;
+			}
+			break;
+		case FLAC__METADATA_TYPE_SEEKTABLE:
+			if (object->data.seek_table.points != NULL) {
+				free(object->data.seek_table.points);
+				object->data.seek_table.points = NULL;
+			}
+			break;
+		case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+			if (object->data.vorbis_comment.vendor_string.entry != NULL) {
+				free(object->data.vorbis_comment.vendor_string.entry);
+				object->data.vorbis_comment.vendor_string.entry = 0;
+			}
+			if (object->data.vorbis_comment.comments != NULL) {
+				FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0);
+				vorbiscomment_entry_array_delete_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments);
+				object->data.vorbis_comment.comments = NULL;
+				object->data.vorbis_comment.num_comments = 0;
+			}
+			break;
+		case FLAC__METADATA_TYPE_CUESHEET:
+			if (object->data.cue_sheet.tracks != NULL) {
+				FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0);
+				cuesheet_track_array_delete_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks);
+				object->data.cue_sheet.tracks = NULL;
+				object->data.cue_sheet.num_tracks = 0;
+			}
+			break;
+		case FLAC__METADATA_TYPE_PICTURE:
+			if (object->data.picture.mime_type != NULL) {
+				free(object->data.picture.mime_type);
+				object->data.picture.mime_type = NULL;
+			}
+			if (object->data.picture.description != NULL) {
+				free(object->data.picture.description);
+				object->data.picture.description = NULL;
+			}
+			if (object->data.picture.data != NULL) {
+				free(object->data.picture.data);
+				object->data.picture.data = NULL;
+			}
+			break;
+		default:
+			if (object->data.unknown.data != NULL) {
+				free(object->data.unknown.data);
+				object->data.unknown.data = NULL;
+			}
+			break;
+	}
+}
+
+FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object)
+{
+	FLAC__metadata_object_delete_data(object);
+	free(object);
+}
+
+static FLAC__bool compare_block_data_streaminfo_(const FLAC__StreamMetadata_StreamInfo *block1, const FLAC__StreamMetadata_StreamInfo *block2)
+{
+	if (block1->min_blocksize != block2->min_blocksize)
+		return false;
+	if (block1->max_blocksize != block2->max_blocksize)
+		return false;
+	if (block1->min_framesize != block2->min_framesize)
+		return false;
+	if (block1->max_framesize != block2->max_framesize)
+		return false;
+	if (block1->sample_rate != block2->sample_rate)
+		return false;
+	if (block1->channels != block2->channels)
+		return false;
+	if (block1->bits_per_sample != block2->bits_per_sample)
+		return false;
+	if (block1->total_samples != block2->total_samples)
+		return false;
+	if (memcmp(block1->md5sum, block2->md5sum, 16) != 0)
+		return false;
+	return true;
+}
+
+static FLAC__bool compare_block_data_application_(const FLAC__StreamMetadata_Application *block1, const FLAC__StreamMetadata_Application *block2, uint32_t block_length)
+{
+	FLAC__ASSERT(block1 != NULL);
+	FLAC__ASSERT(block2 != NULL);
+	FLAC__ASSERT(block_length >= sizeof(block1->id));
+
+	if (memcmp(block1->id, block2->id, sizeof(block1->id)) != 0)
+		return false;
+	if (block1->data != NULL && block2->data != NULL)
+		return memcmp(block1->data, block2->data, block_length - sizeof(block1->id)) == 0;
+	else
+		return block1->data == block2->data;
+}
+
+static FLAC__bool compare_block_data_seektable_(const FLAC__StreamMetadata_SeekTable *block1, const FLAC__StreamMetadata_SeekTable *block2)
+{
+	uint32_t i;
+
+	FLAC__ASSERT(block1 != NULL);
+	FLAC__ASSERT(block2 != NULL);
+
+	if (block1->num_points != block2->num_points)
+		return false;
+
+	if (block1->points != NULL && block2->points != NULL) {
+		for (i = 0; i < block1->num_points; i++) {
+			if (block1->points[i].sample_number != block2->points[i].sample_number)
+				return false;
+			if (block1->points[i].stream_offset != block2->points[i].stream_offset)
+				return false;
+			if (block1->points[i].frame_samples != block2->points[i].frame_samples)
+				return false;
+		}
+		return true;
+	}
+	else
+		return block1->points == block2->points;
+}
+
+static FLAC__bool compare_block_data_vorbiscomment_(const FLAC__StreamMetadata_VorbisComment *block1, const FLAC__StreamMetadata_VorbisComment *block2)
+{
+	uint32_t i;
+
+	if (block1->vendor_string.length != block2->vendor_string.length)
+		return false;
+
+	if (block1->vendor_string.entry != NULL && block2->vendor_string.entry != NULL) {
+		if (memcmp(block1->vendor_string.entry, block2->vendor_string.entry, block1->vendor_string.length) != 0)
+			return false;
+	}
+	else if (block1->vendor_string.entry != block2->vendor_string.entry)
+		return false;
+
+	if (block1->num_comments != block2->num_comments)
+		return false;
+
+	for (i = 0; i < block1->num_comments; i++) {
+		if (block1->comments[i].entry != NULL && block2->comments[i].entry != NULL) {
+			if (memcmp(block1->comments[i].entry, block2->comments[i].entry, block1->comments[i].length) != 0)
+				return false;
+		}
+		else if (block1->comments[i].entry != block2->comments[i].entry)
+			return false;
+	}
+	return true;
+}
+
+static FLAC__bool compare_block_data_cuesheet_(const FLAC__StreamMetadata_CueSheet *block1, const FLAC__StreamMetadata_CueSheet *block2)
+{
+	uint32_t i, j;
+
+	if (strcmp(block1->media_catalog_number, block2->media_catalog_number) != 0)
+		return false;
+
+	if (block1->lead_in != block2->lead_in)
+		return false;
+
+	if (block1->is_cd != block2->is_cd)
+		return false;
+
+	if (block1->num_tracks != block2->num_tracks)
+		return false;
+
+	if (block1->tracks != NULL && block2->tracks != NULL) {
+		FLAC__ASSERT(block1->num_tracks > 0);
+		for (i = 0; i < block1->num_tracks; i++) {
+			if (block1->tracks[i].offset != block2->tracks[i].offset)
+				return false;
+			if (block1->tracks[i].number != block2->tracks[i].number)
+				return false;
+			if (memcmp(block1->tracks[i].isrc, block2->tracks[i].isrc, sizeof(block1->tracks[i].isrc)) != 0)
+				return false;
+			if (block1->tracks[i].type != block2->tracks[i].type)
+				return false;
+			if (block1->tracks[i].pre_emphasis != block2->tracks[i].pre_emphasis)
+				return false;
+			if (block1->tracks[i].num_indices != block2->tracks[i].num_indices)
+				return false;
+			if (block1->tracks[i].indices != NULL && block2->tracks[i].indices != NULL) {
+				FLAC__ASSERT(block1->tracks[i].num_indices > 0);
+				for (j = 0; j < block1->tracks[i].num_indices; j++) {
+					if (block1->tracks[i].indices[j].offset != block2->tracks[i].indices[j].offset)
+						return false;
+					if (block1->tracks[i].indices[j].number != block2->tracks[i].indices[j].number)
+						return false;
+				}
+			}
+			else if (block1->tracks[i].indices != block2->tracks[i].indices)
+				return false;
+		}
+	}
+	else if (block1->tracks != block2->tracks)
+		return false;
+	return true;
+}
+
+static FLAC__bool compare_block_data_picture_(const FLAC__StreamMetadata_Picture *block1, const FLAC__StreamMetadata_Picture *block2)
+{
+	if (block1->type != block2->type)
+		return false;
+	if (block1->mime_type != block2->mime_type && (block1->mime_type == 0 || block2->mime_type == 0 || strcmp(block1->mime_type, block2->mime_type)))
+		return false;
+	if (block1->description != block2->description && (block1->description == 0 || block2->description == 0 || strcmp((const char *)block1->description, (const char *)block2->description)))
+		return false;
+	if (block1->width != block2->width)
+		return false;
+	if (block1->height != block2->height)
+		return false;
+	if (block1->depth != block2->depth)
+		return false;
+	if (block1->colors != block2->colors)
+		return false;
+	if (block1->data_length != block2->data_length)
+		return false;
+	if (block1->data != block2->data && (block1->data == NULL || block2->data == NULL || memcmp(block1->data, block2->data, block1->data_length)))
+		return false;
+	return true;
+}
+
+static FLAC__bool compare_block_data_unknown_(const FLAC__StreamMetadata_Unknown *block1, const FLAC__StreamMetadata_Unknown *block2, uint32_t block_length)
+{
+	FLAC__ASSERT(block1 != NULL);
+	FLAC__ASSERT(block2 != NULL);
+
+	if (block1->data != NULL && block2->data != NULL)
+		return memcmp(block1->data, block2->data, block_length) == 0;
+	else
+		return block1->data == block2->data;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_is_equal(const FLAC__StreamMetadata *block1, const FLAC__StreamMetadata *block2)
+{
+	FLAC__ASSERT(block1 != NULL);
+	FLAC__ASSERT(block2 != NULL);
+
+	if (block1->type != block2->type) {
+		return false;
+	}
+	if (block1->is_last != block2->is_last) {
+		return false;
+	}
+	if (block1->length != block2->length) {
+		return false;
+	}
+	switch(block1->type) {
+		case FLAC__METADATA_TYPE_STREAMINFO:
+			return compare_block_data_streaminfo_(&block1->data.stream_info, &block2->data.stream_info);
+		case FLAC__METADATA_TYPE_PADDING:
+			return true; /* we don't compare the padding guts */
+		case FLAC__METADATA_TYPE_APPLICATION:
+			return compare_block_data_application_(&block1->data.application, &block2->data.application, block1->length);
+		case FLAC__METADATA_TYPE_SEEKTABLE:
+			return compare_block_data_seektable_(&block1->data.seek_table, &block2->data.seek_table);
+		case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+			return compare_block_data_vorbiscomment_(&block1->data.vorbis_comment, &block2->data.vorbis_comment);
+		case FLAC__METADATA_TYPE_CUESHEET:
+			return compare_block_data_cuesheet_(&block1->data.cue_sheet, &block2->data.cue_sheet);
+		case FLAC__METADATA_TYPE_PICTURE:
+			return compare_block_data_picture_(&block1->data.picture, &block2->data.picture);
+		default:
+			return compare_block_data_unknown_(&block1->data.unknown, &block2->data.unknown, block1->length);
+	}
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, uint32_t length, FLAC__bool copy)
+{
+	FLAC__byte *save;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_APPLICATION);
+	FLAC__ASSERT((data != NULL && length > 0) || (data == NULL && length == 0 && copy == false));
+
+	save = object->data.application.data;
+
+	/* do the copy first so that if we fail we leave the object untouched */
+	if (copy) {
+		if (!copy_bytes_(&object->data.application.data, data, length))
+			return false;
+	}
+	else {
+		object->data.application.data = data;
+	}
+
+	free(save);
+
+	object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8 + length;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_resize_points(FLAC__StreamMetadata *object, uint32_t new_num_points)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+
+	if (object->data.seek_table.points == 0) {
+		FLAC__ASSERT(object->data.seek_table.num_points == 0);
+		if (new_num_points == 0)
+			return true;
+		else if ((object->data.seek_table.points = seekpoint_array_new_(new_num_points)) == 0)
+			return false;
+	}
+	else {
+		const size_t old_size = object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
+		const size_t new_size = new_num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
+
+		/* overflow check */
+		if (new_num_points > UINT32_MAX / sizeof(FLAC__StreamMetadata_SeekPoint))
+			return false;
+
+		FLAC__ASSERT(object->data.seek_table.num_points > 0);
+
+		if (new_size == 0) {
+			free(object->data.seek_table.points);
+			object->data.seek_table.points = 0;
+		}
+		else {
+			/* Leave object->data.seek_table.points untouched if realloc fails */
+			FLAC__StreamMetadata_SeekPoint *tmpptr;
+			if ((tmpptr = realloc(object->data.seek_table.points, new_size)) == NULL)
+				return false;
+			object->data.seek_table.points = tmpptr;
+		}
+
+		/* if growing, set new elements to placeholders */
+		if (new_size > old_size) {
+			uint32_t i;
+			for (i = object->data.seek_table.num_points; i < new_num_points; i++) {
+				object->data.seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
+				object->data.seek_table.points[i].stream_offset = 0;
+				object->data.seek_table.points[i].frame_samples = 0;
+			}
+		}
+	}
+
+	object->data.seek_table.num_points = new_num_points;
+
+	seektable_calculate_length_(object);
+	return true;
+}
+
+FLAC_API void FLAC__metadata_object_seektable_set_point(FLAC__StreamMetadata *object, uint32_t point_num, FLAC__StreamMetadata_SeekPoint point)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+	FLAC__ASSERT(point_num < object->data.seek_table.num_points);
+
+	object->data.seek_table.points[point_num] = point;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_insert_point(FLAC__StreamMetadata *object, uint32_t point_num, FLAC__StreamMetadata_SeekPoint point)
+{
+	int i;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+	FLAC__ASSERT(point_num <= object->data.seek_table.num_points);
+
+	if (!FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points+1))
+		return false;
+
+	/* move all points >= point_num forward one space */
+	for (i = (int)object->data.seek_table.num_points-1; i > (int)point_num; i--)
+		object->data.seek_table.points[i] = object->data.seek_table.points[i-1];
+
+	FLAC__metadata_object_seektable_set_point(object, point_num, point);
+	seektable_calculate_length_(object);
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_delete_point(FLAC__StreamMetadata *object, uint32_t point_num)
+{
+	uint32_t i;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+	FLAC__ASSERT(point_num < object->data.seek_table.num_points);
+
+	/* move all points > point_num backward one space */
+	for (i = point_num; i < object->data.seek_table.num_points-1; i++)
+		object->data.seek_table.points[i] = object->data.seek_table.points[i+1];
+
+	return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points-1);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_is_legal(const FLAC__StreamMetadata *object)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+
+	return FLAC__format_seektable_is_legal(&object->data.seek_table);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_placeholders(FLAC__StreamMetadata *object, uint32_t num)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+
+	if (num > 0)
+		/* WATCHOUT: we rely on the fact that growing the array adds PLACEHOLDERS at the end */
+		return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points + num);
+	else
+		return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_point(FLAC__StreamMetadata *object, FLAC__uint64 sample_number)
+{
+	FLAC__StreamMetadata_SeekTable *seek_table;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+
+	seek_table = &object->data.seek_table;
+
+	if (!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + 1))
+		return false;
+
+	seek_table->points[seek_table->num_points - 1].sample_number = sample_number;
+	seek_table->points[seek_table->num_points - 1].stream_offset = 0;
+	seek_table->points[seek_table->num_points - 1].frame_samples = 0;
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_points(FLAC__StreamMetadata *object, FLAC__uint64 sample_numbers[], uint32_t num)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+	FLAC__ASSERT(sample_numbers != 0 || num == 0);
+
+	if (num > 0) {
+		FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
+		uint32_t i, j;
+
+		i = seek_table->num_points;
+
+		if (!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num))
+			return false;
+
+		for (j = 0; j < num; i++, j++) {
+			seek_table->points[i].sample_number = sample_numbers[j];
+			seek_table->points[i].stream_offset = 0;
+			seek_table->points[i].frame_samples = 0;
+		}
+	}
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points(FLAC__StreamMetadata *object, uint32_t num, FLAC__uint64 total_samples)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+	FLAC__ASSERT(total_samples > 0);
+
+	if (num > 0 && total_samples > 0) {
+		FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
+		uint32_t i, j;
+
+		i = seek_table->num_points;
+
+		if (!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num))
+			return false;
+
+		for (j = 0; j < num; i++, j++) {
+			seek_table->points[i].sample_number = total_samples * (FLAC__uint64)j / (FLAC__uint64)num;
+			seek_table->points[i].stream_offset = 0;
+			seek_table->points[i].frame_samples = 0;
+		}
+	}
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(FLAC__StreamMetadata *object, uint32_t samples, FLAC__uint64 total_samples)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+	FLAC__ASSERT(samples > 0);
+	FLAC__ASSERT(total_samples > 0);
+
+	if (samples > 0 && total_samples > 0) {
+		FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
+		uint32_t i, j;
+		FLAC__uint64 num, sample;
+
+		num = 1 + total_samples / samples; /* 1+ for the first sample at 0 */
+		/* now account for the fact that we don't place a seekpoint at "total_samples" since samples are number from 0: */
+		if (total_samples % samples == 0)
+			num--;
+
+		/* Put a strict upper bound on the number of allowed seek points. */
+		if (num > 32768) {
+			/* Set the bound and recalculate samples accordingly. */
+			num = 32768;
+			samples = (uint32_t)(total_samples / num);
+		}
+
+		i = seek_table->num_points;
+
+		if (!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + (uint32_t)num))
+			return false;
+
+		sample = 0;
+		for (j = 0; j < num; i++, j++, sample += samples) {
+			seek_table->points[i].sample_number = sample;
+			seek_table->points[i].stream_offset = 0;
+			seek_table->points[i].frame_samples = 0;
+		}
+	}
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_sort(FLAC__StreamMetadata *object, FLAC__bool compact)
+{
+	uint32_t unique;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
+
+	unique = FLAC__format_seektable_sort(&object->data.seek_table);
+
+	return !compact || FLAC__metadata_object_seektable_resize_points(object, unique);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_vendor_string(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
+{
+	if (!FLAC__format_vorbiscomment_entry_value_is_legal(entry.entry, entry.length))
+		return false;
+	return vorbiscomment_set_entry_(object, &object->data.vorbis_comment.vendor_string, &entry, copy);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_resize_comments(FLAC__StreamMetadata *object, uint32_t new_num_comments)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+
+	if (object->data.vorbis_comment.comments == NULL) {
+		FLAC__ASSERT(object->data.vorbis_comment.num_comments == 0);
+		if (new_num_comments == 0)
+			return true;
+		else {
+			if ((object->data.vorbis_comment.comments = vorbiscomment_entry_array_new_(new_num_comments)) == NULL)
+				return false;
+			for (uint32_t i = 0; i < new_num_comments; i++) {
+				object->data.vorbis_comment.comments[i].length = 0;
+				if ((object->data.vorbis_comment.comments[i].entry = safe_malloc_(1)) == NULL) {
+					object->data.vorbis_comment.num_comments = i+1;
+					return false;
+				}
+				object->data.vorbis_comment.comments[i].entry[0] = '\0';
+			}
+		}
+	}
+	else {
+		const size_t old_size = object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
+		const size_t new_size = new_num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
+
+		/* overflow check */
+		if (new_num_comments > UINT32_MAX / sizeof(FLAC__StreamMetadata_VorbisComment_Entry))
+			return false;
+
+		FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0);
+
+		/* if shrinking, free the truncated entries */
+		if (new_num_comments < object->data.vorbis_comment.num_comments) {
+			uint32_t i;
+			for (i = new_num_comments; i < object->data.vorbis_comment.num_comments; i++)
+				if (object->data.vorbis_comment.comments[i].entry != NULL)
+					free(object->data.vorbis_comment.comments[i].entry);
+		}
+
+		if (new_size == 0) {
+			free(object->data.vorbis_comment.comments);
+			object->data.vorbis_comment.comments = 0;
+		}
+		else {
+			/* Leave object->data.vorbis_comment.comments untouched if realloc fails */
+			FLAC__StreamMetadata_VorbisComment_Entry *tmpptr;
+			if ((tmpptr = realloc(object->data.vorbis_comment.comments, new_size)) == NULL)
+				return false;
+			object->data.vorbis_comment.comments = tmpptr;
+		}
+
+		/* if growing, zero all the length/pointers of new elements */
+		if (new_size > old_size) {
+			for (uint32_t i = object->data.vorbis_comment.num_comments; i < new_num_comments; i++) {
+				object->data.vorbis_comment.comments[i].length = 0;
+				if ((object->data.vorbis_comment.comments[i].entry = safe_malloc_(1)) == NULL) {
+					object->data.vorbis_comment.num_comments = i+1;
+					return false;
+				}
+				object->data.vorbis_comment.comments[i].entry[0] = '\0';
+			}
+		}
+	}
+
+	object->data.vorbis_comment.num_comments = new_num_comments;
+
+	vorbiscomment_calculate_length_(object);
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_comment(FLAC__StreamMetadata *object, uint32_t comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments);
+
+	if (!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
+		return false;
+	return vorbiscomment_set_entry_(object, &object->data.vorbis_comment.comments[comment_num], &entry, copy);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_insert_comment(FLAC__StreamMetadata *object, uint32_t comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
+{
+	FLAC__StreamMetadata_VorbisComment *vc;
+	FLAC__StreamMetadata_VorbisComment_Entry temp;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+	FLAC__ASSERT(comment_num <= object->data.vorbis_comment.num_comments);
+
+	if (!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
+		return false;
+
+	vc = &object->data.vorbis_comment;
+
+	if (!FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments+1))
+		return false;
+
+	/* move all comments >= comment_num forward one space */
+	/* reuse newly added empty comment */
+	temp = vc->comments[vc->num_comments-1];
+	memmove(&vc->comments[comment_num+1], &vc->comments[comment_num], sizeof(FLAC__StreamMetadata_VorbisComment_Entry)*(vc->num_comments-1-comment_num));
+	vc->comments[comment_num] = temp;
+
+	return FLAC__metadata_object_vorbiscomment_set_comment(object, comment_num, entry, copy);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_append_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+	return FLAC__metadata_object_vorbiscomment_insert_comment(object, object->data.vorbis_comment.num_comments, entry, copy);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_replace_comment(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool all, FLAC__bool copy)
+{
+	FLAC__ASSERT(entry.entry != NULL && entry.length > 0);
+
+	if (!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
+		return false;
+
+	{
+		int i;
+		size_t field_name_length;
+		const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length);
+
+		if (eq == NULL)
+			return false; /* double protection */
+
+		field_name_length = eq-entry.entry;
+
+		i = vorbiscomment_find_entry_from_(object, 0, (const char *)entry.entry, field_name_length);
+		if (i >= 0) {
+			uint32_t indx = (uint32_t)i;
+			if (!FLAC__metadata_object_vorbiscomment_set_comment(object, indx, entry, copy))
+				return false;
+			entry = object->data.vorbis_comment.comments[indx];
+			indx++; /* skip over replaced comment */
+			if (all && indx < object->data.vorbis_comment.num_comments) {
+				i = vorbiscomment_find_entry_from_(object, indx, (const char *)entry.entry, field_name_length);
+				while (i >= 0) {
+					indx = (uint32_t)i;
+					if (!FLAC__metadata_object_vorbiscomment_delete_comment(object, indx))
+						return false;
+					if (indx < object->data.vorbis_comment.num_comments)
+						i = vorbiscomment_find_entry_from_(object, indx, (const char *)entry.entry, field_name_length);
+					else
+						i = -1;
+				}
+			}
+			return true;
+		}
+		else
+			return FLAC__metadata_object_vorbiscomment_append_comment(object, entry, copy);
+	}
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_delete_comment(FLAC__StreamMetadata *object, uint32_t comment_num)
+{
+	FLAC__StreamMetadata_VorbisComment *vc;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+	FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments);
+
+	vc = &object->data.vorbis_comment;
+
+	/* free the comment at comment_num */
+	free(vc->comments[comment_num].entry);
+
+	/* move all comments > comment_num backward one space */
+	memmove(&vc->comments[comment_num], &vc->comments[comment_num+1], sizeof(FLAC__StreamMetadata_VorbisComment_Entry)*(vc->num_comments-comment_num-1));
+	vc->comments[vc->num_comments-1].length = 0;
+	vc->comments[vc->num_comments-1].entry = 0;
+
+	return FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments-1);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(FLAC__StreamMetadata_VorbisComment_Entry *entry, const char *field_name, const char *field_value)
+{
+	FLAC__ASSERT(entry != NULL);
+	FLAC__ASSERT(field_name != NULL);
+	FLAC__ASSERT(field_value != NULL);
+
+	if (!FLAC__format_vorbiscomment_entry_name_is_legal(field_name))
+		return false;
+	if (!FLAC__format_vorbiscomment_entry_value_is_legal((const FLAC__byte *)field_value, (uint32_t)(-1)))
+		return false;
+
+	{
+		const size_t nn = strlen(field_name);
+		const size_t nv = strlen(field_value);
+		entry->length = nn + 1 /*=*/ + nv;
+		if ((entry->entry = safe_malloc_add_4op_(nn, /*+*/1, /*+*/nv, /*+*/1)) == NULL)
+			return false;
+		memcpy(entry->entry, field_name, nn);
+		entry->entry[nn] = '=';
+		memcpy(entry->entry+nn+1, field_value, nv);
+		entry->entry[entry->length] = '\0';
+	}
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_to_name_value_pair(const FLAC__StreamMetadata_VorbisComment_Entry entry, char **field_name, char **field_value)
+{
+	FLAC__ASSERT(entry.entry != NULL && entry.length > 0);
+	FLAC__ASSERT(field_name != NULL);
+	FLAC__ASSERT(field_value != NULL);
+
+	if (!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length))
+		return false;
+
+	{
+		const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length);
+		const size_t nn = eq-entry.entry;
+		const size_t nv = entry.length-nn-1; /* -1 for the '=' */
+
+		if (eq == NULL)
+			return false; /* double protection */
+		if ((*field_name = safe_malloc_add_2op_(nn, /*+*/1)) == NULL)
+			return false;
+		if ((*field_value = safe_malloc_add_2op_(nv, /*+*/1)) == NULL) {
+			free(*field_name);
+			return false;
+		}
+		memcpy(*field_name, entry.entry, nn);
+		memcpy(*field_value, entry.entry+nn+1, nv);
+		(*field_name)[nn] = '\0';
+		(*field_value)[nv] = '\0';
+	}
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(const FLAC__StreamMetadata_VorbisComment_Entry entry, const char *field_name, uint32_t field_name_length)
+{
+	FLAC__ASSERT(entry.entry != NULL && entry.length > 0);
+	{
+		const FLAC__byte *eq = (FLAC__byte*)memchr(entry.entry, '=', entry.length);
+		return (eq != NULL && (uint32_t)(eq-entry.entry) == field_name_length && FLAC__STRNCASECMP(field_name, (const char *)entry.entry, field_name_length) == 0);
+	}
+}
+
+FLAC_API int FLAC__metadata_object_vorbiscomment_find_entry_from(const FLAC__StreamMetadata *object, uint32_t offset, const char *field_name)
+{
+	FLAC__ASSERT(field_name != NULL);
+
+	return vorbiscomment_find_entry_from_(object, offset, field_name, strlen(field_name));
+}
+
+FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name)
+{
+	const uint32_t field_name_length = strlen(field_name);
+	uint32_t i;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+
+	for (i = 0; i < object->data.vorbis_comment.num_comments; i++) {
+		if (FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) {
+			if (!FLAC__metadata_object_vorbiscomment_delete_comment(object, i))
+				return -1;
+			else
+				return 1;
+		}
+	}
+
+	return 0;
+}
+
+FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name)
+{
+	FLAC__bool ok = true;
+	uint32_t matching = 0;
+	const uint32_t field_name_length = strlen(field_name);
+	int i;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+
+	/* must delete from end to start otherwise it will interfere with our iteration */
+	for (i = (int)object->data.vorbis_comment.num_comments - 1; ok && i >= 0; i--) {
+		if (FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments[i], field_name, field_name_length)) {
+			matching++;
+			ok &= FLAC__metadata_object_vorbiscomment_delete_comment(object, (uint32_t)i);
+		}
+	}
+
+	return ok? (int)matching : -1;
+}
+
+FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_new(void)
+{
+	return calloc(1, sizeof(FLAC__StreamMetadata_CueSheet_Track));
+}
+
+FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object)
+{
+	FLAC__StreamMetadata_CueSheet_Track *to;
+
+	FLAC__ASSERT(object != NULL);
+
+	if ((to = FLAC__metadata_object_cuesheet_track_new()) != NULL) {
+		if (!copy_track_(to, object)) {
+			FLAC__metadata_object_cuesheet_track_delete(to);
+			return 0;
+		}
+	}
+
+	return to;
+}
+
+void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object)
+{
+	FLAC__ASSERT(object != NULL);
+
+	if (object->indices != NULL) {
+		FLAC__ASSERT(object->num_indices > 0);
+		free(object->indices);
+	}
+}
+
+FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object)
+{
+	FLAC__metadata_object_cuesheet_track_delete_data(object);
+	free(object);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t new_num_indices)
+{
+	FLAC__StreamMetadata_CueSheet_Track *track;
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
+	FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
+
+	track = &object->data.cue_sheet.tracks[track_num];
+
+	if (track->indices == NULL) {
+		FLAC__ASSERT(track->num_indices == 0);
+		if (new_num_indices == 0)
+			return true;
+		else if ((track->indices = cuesheet_track_index_array_new_(new_num_indices)) == NULL)
+			return false;
+	}
+	else {
+		const size_t old_size = track->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
+		const size_t new_size = new_num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
+
+		/* overflow check */
+		if (new_num_indices > UINT32_MAX / sizeof(FLAC__StreamMetadata_CueSheet_Index))
+			return false;
+
+		FLAC__ASSERT(track->num_indices > 0);
+
+		if (new_size == 0) {
+			free(track->indices);
+			track->indices = 0;
+		}
+		else {
+			/* Leave track->indices untouched if realloc fails */
+			FLAC__StreamMetadata_CueSheet_Index *tmpptr;
+			if ((tmpptr = realloc(track->indices, new_size)) == NULL)
+				return false;
+			track->indices = tmpptr;
+		}
+
+		/* if growing, zero all the lengths/pointers of new elements */
+		if (new_size > old_size)
+			memset(track->indices + track->num_indices, 0, new_size - old_size);
+	}
+
+	track->num_indices = new_num_indices;
+
+	cuesheet_calculate_length_(object);
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_index(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t index_num, FLAC__StreamMetadata_CueSheet_Index indx)
+{
+	FLAC__StreamMetadata_CueSheet_Track *track;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
+	FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
+	FLAC__ASSERT(index_num <= object->data.cue_sheet.tracks[track_num].num_indices);
+
+	track = &object->data.cue_sheet.tracks[track_num];
+
+	if (!FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices+1))
+		return false;
+
+	/* move all indices >= index_num forward one space */
+	memmove(&track->indices[index_num+1], &track->indices[index_num], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-1-index_num));
+
+	track->indices[index_num] = indx;
+	cuesheet_calculate_length_(object);
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t index_num)
+{
+	FLAC__StreamMetadata_CueSheet_Index indx;
+	memset(&indx, 0, sizeof(indx));
+	return FLAC__metadata_object_cuesheet_track_insert_index(object, track_num, index_num, indx);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, uint32_t track_num, uint32_t index_num)
+{
+	FLAC__StreamMetadata_CueSheet_Track *track;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
+	FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
+	FLAC__ASSERT(index_num < object->data.cue_sheet.tracks[track_num].num_indices);
+
+	track = &object->data.cue_sheet.tracks[track_num];
+
+	/* move all indices > index_num backward one space */
+	memmove(&track->indices[index_num], &track->indices[index_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-index_num-1));
+
+	FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices-1);
+	cuesheet_calculate_length_(object);
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, uint32_t new_num_tracks)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
+
+	if (object->data.cue_sheet.tracks == NULL) {
+		FLAC__ASSERT(object->data.cue_sheet.num_tracks == 0);
+		if (new_num_tracks == 0)
+			return true;
+		else if ((object->data.cue_sheet.tracks = cuesheet_track_array_new_(new_num_tracks)) == NULL)
+			return false;
+	}
+	else {
+		const size_t old_size = object->data.cue_sheet.num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
+		const size_t new_size = new_num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
+
+		/* overflow check */
+		if (new_num_tracks > UINT32_MAX / sizeof(FLAC__StreamMetadata_CueSheet_Track))
+			return false;
+
+		FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0);
+
+		/* if shrinking, free the truncated entries */
+		if (new_num_tracks < object->data.cue_sheet.num_tracks) {
+			uint32_t i;
+			for (i = new_num_tracks; i < object->data.cue_sheet.num_tracks; i++)
+				free(object->data.cue_sheet.tracks[i].indices);
+		}
+
+		if (new_size == 0) {
+			free(object->data.cue_sheet.tracks);
+			object->data.cue_sheet.tracks = 0;
+		}
+		else {
+			/* Leave object->data.cue_sheet.tracks untouched if realloc fails */
+			FLAC__StreamMetadata_CueSheet_Track *tmpptr;
+			if ((tmpptr = realloc(object->data.cue_sheet.tracks, new_size)) == NULL)
+				return false;
+			object->data.cue_sheet.tracks = tmpptr;
+		}
+
+		/* if growing, zero all the lengths/pointers of new elements */
+		if (new_size > old_size)
+			memset(object->data.cue_sheet.tracks + object->data.cue_sheet.num_tracks, 0, new_size - old_size);
+	}
+
+	object->data.cue_sheet.num_tracks = new_num_tracks;
+
+	cuesheet_calculate_length_(object);
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_set_track(FLAC__StreamMetadata *object, uint32_t track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
+
+	return cuesheet_set_track_(object, object->data.cue_sheet.tracks + track_num, track, copy);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_track(FLAC__StreamMetadata *object, uint32_t track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy)
+{
+	FLAC__StreamMetadata_CueSheet *cs;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
+	FLAC__ASSERT(track_num <= object->data.cue_sheet.num_tracks);
+
+	cs = &object->data.cue_sheet;
+
+	if (!FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks+1))
+		return false;
+
+	/* move all tracks >= track_num forward one space */
+	memmove(&cs->tracks[track_num+1], &cs->tracks[track_num], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-1-track_num));
+	cs->tracks[track_num].num_indices = 0;
+	cs->tracks[track_num].indices = 0;
+
+	return FLAC__metadata_object_cuesheet_set_track(object, track_num, track, copy);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, uint32_t track_num)
+{
+	FLAC__StreamMetadata_CueSheet_Track track;
+	memset(&track, 0, sizeof(track));
+	return FLAC__metadata_object_cuesheet_insert_track(object, track_num, &track, /*copy=*/false);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, uint32_t track_num)
+{
+	FLAC__StreamMetadata_CueSheet *cs;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
+	FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
+
+	cs = &object->data.cue_sheet;
+
+	/* free the track at track_num */
+	free(cs->tracks[track_num].indices);
+
+	/* move all tracks > track_num backward one space */
+	memmove(&cs->tracks[track_num], &cs->tracks[track_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-track_num-1));
+	cs->tracks[cs->num_tracks-1].num_indices = 0;
+	cs->tracks[cs->num_tracks-1].indices = 0;
+
+	return FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks-1);
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
+
+	return FLAC__format_cuesheet_is_legal(&object->data.cue_sheet, check_cd_da_subset, violation);
+}
+
+static FLAC__uint64 get_index_01_offset_(const FLAC__StreamMetadata_CueSheet *cs, uint32_t track)
+{
+	if (track >= (cs->num_tracks-1) || cs->tracks[track].num_indices < 1)
+		return 0;
+	else if (cs->tracks[track].indices[0].number == 1)
+		return cs->tracks[track].indices[0].offset + cs->tracks[track].offset + cs->lead_in;
+	else if (cs->tracks[track].num_indices < 2)
+		return 0;
+	else if (cs->tracks[track].indices[1].number == 1)
+		return cs->tracks[track].indices[1].offset + cs->tracks[track].offset + cs->lead_in;
+	else
+		return 0;
+}
+
+static FLAC__uint32 cddb_add_digits_(FLAC__uint32 x)
+{
+	FLAC__uint32 n = 0;
+	while (x) {
+		n += (x%10);
+		x /= 10;
+	}
+	return n;
+}
+
+/*@@@@add to tests*/
+FLAC_API FLAC__uint32 FLAC__metadata_object_cuesheet_calculate_cddb_id(const FLAC__StreamMetadata *object)
+{
+	const FLAC__StreamMetadata_CueSheet *cs;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
+
+	cs = &object->data.cue_sheet;
+
+	if (cs->num_tracks < 2) /* need at least one real track and the lead-out track */
+		return 0;
+
+	{
+		FLAC__uint32 i, length, sum = 0;
+		for (i = 0; i < (cs->num_tracks-1); i++) /* -1 to avoid counting the lead-out */
+			sum += cddb_add_digits_((FLAC__uint32)(get_index_01_offset_(cs, i) / 44100));
+		length = (FLAC__uint32)((cs->tracks[cs->num_tracks-1].offset+cs->lead_in) / 44100) - (FLAC__uint32)(get_index_01_offset_(cs, 0) / 44100);
+
+		return (sum % 0xFF) << 24 | length << 8 | (FLAC__uint32)(cs->num_tracks-1);
+	}
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_picture_set_mime_type(FLAC__StreamMetadata *object, char *mime_type, FLAC__bool copy)
+{
+	char *old;
+	size_t old_length, new_length;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
+	FLAC__ASSERT(mime_type != NULL);
+
+	old = object->data.picture.mime_type;
+	old_length = old? strlen(old) : 0;
+	new_length = strlen(mime_type);
+
+	/* do the copy first so that if we fail we leave the object untouched */
+	if (copy) {
+		if (new_length >= SIZE_MAX) /* overflow check */
+			return false;
+		if (!copy_bytes_((FLAC__byte**)(&object->data.picture.mime_type), (FLAC__byte*)mime_type, new_length+1))
+			return false;
+	}
+	else {
+		object->data.picture.mime_type = mime_type;
+	}
+
+	free(old);
+
+	object->length -= old_length;
+	object->length += new_length;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_picture_set_description(FLAC__StreamMetadata *object, FLAC__byte *description, FLAC__bool copy)
+{
+	FLAC__byte *old;
+	size_t old_length, new_length;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
+	FLAC__ASSERT(description != NULL);
+
+	old = object->data.picture.description;
+	old_length = old? strlen((const char *)old) : 0;
+	new_length = strlen((const char *)description);
+
+	/* do the copy first so that if we fail we leave the object untouched */
+	if (copy) {
+		if (new_length >= SIZE_MAX) /* overflow check */
+			return false;
+		if (!copy_bytes_(&object->data.picture.description, description, new_length+1))
+			return false;
+	}
+	else {
+		object->data.picture.description = description;
+	}
+
+	free(old);
+
+	object->length -= old_length;
+	object->length += new_length;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_picture_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, FLAC__uint32 length, FLAC__bool copy)
+{
+	FLAC__byte *old;
+
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
+	FLAC__ASSERT((data != NULL && length > 0) || (data == NULL && length == 0 && copy == false));
+
+	old = object->data.picture.data;
+
+	/* do the copy first so that if we fail we leave the object untouched */
+	if (copy) {
+		if (!copy_bytes_(&object->data.picture.data, data, length))
+			return false;
+	}
+	else {
+		object->data.picture.data = data;
+	}
+
+	free(old);
+
+	object->length -= object->data.picture.data_length;
+	object->data.picture.data_length = length;
+	object->length += length;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__metadata_object_picture_is_legal(const FLAC__StreamMetadata *object, const char **violation)
+{
+	FLAC__ASSERT(object != NULL);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_PICTURE);
+
+	return FLAC__format_picture_is_legal(&object->data.picture, violation);
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_decoder_aspect.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_decoder_aspect.c
new file mode 100644
index 00000000..e331db30
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_decoder_aspect.c
@@ -0,0 +1,251 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <string.h> /* for memcpy() */
+#include "FLAC/assert.h"
+#include "private/ogg_decoder_aspect.h"
+#include "private/ogg_mapping.h"
+#include "private/macros.h"
+
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__bool FLAC__ogg_decoder_aspect_init(FLAC__OggDecoderAspect *aspect)
+{
+	/* we will determine the serial number later if necessary */
+	if(ogg_stream_init(&aspect->stream_state, aspect->serial_number) != 0)
+		return false;
+
+	if(ogg_sync_init(&aspect->sync_state) != 0)
+		return false;
+
+	aspect->version_major = ~(0u);
+	aspect->version_minor = ~(0u);
+
+	aspect->need_serial_number = aspect->use_first_serial_number;
+
+	aspect->end_of_stream = false;
+	aspect->have_working_page = false;
+
+	return true;
+}
+
+void FLAC__ogg_decoder_aspect_finish(FLAC__OggDecoderAspect *aspect)
+{
+	(void)ogg_sync_clear(&aspect->sync_state);
+	(void)ogg_stream_clear(&aspect->stream_state);
+}
+
+void FLAC__ogg_decoder_aspect_set_serial_number(FLAC__OggDecoderAspect *aspect, long value)
+{
+	aspect->use_first_serial_number = false;
+	aspect->serial_number = value;
+}
+
+void FLAC__ogg_decoder_aspect_set_defaults(FLAC__OggDecoderAspect *aspect)
+{
+	aspect->use_first_serial_number = true;
+}
+
+void FLAC__ogg_decoder_aspect_flush(FLAC__OggDecoderAspect *aspect)
+{
+	(void)ogg_stream_reset(&aspect->stream_state);
+	(void)ogg_sync_reset(&aspect->sync_state);
+	aspect->end_of_stream = false;
+	aspect->have_working_page = false;
+}
+
+void FLAC__ogg_decoder_aspect_reset(FLAC__OggDecoderAspect *aspect)
+{
+	FLAC__ogg_decoder_aspect_flush(aspect);
+
+	if(aspect->use_first_serial_number)
+		aspect->need_serial_number = true;
+}
+
+FLAC__OggDecoderAspectReadStatus FLAC__ogg_decoder_aspect_read_callback_wrapper(FLAC__OggDecoderAspect *aspect, FLAC__byte buffer[], size_t *bytes, FLAC__OggDecoderAspectReadCallbackProxy read_callback, const FLAC__StreamDecoder *decoder, void *client_data)
+{
+	static const size_t OGG_BYTES_CHUNK = 8192;
+	const size_t bytes_requested = *bytes;
+
+	/*
+	 * The FLAC decoding API uses pull-based reads, whereas Ogg decoding
+	 * is push-based.  In libFLAC, when you ask to decode a frame, the
+	 * decoder will eventually call the read callback to supply some data,
+	 * but how much it asks for depends on how much free space it has in
+	 * its internal buffer.  It does not try to grow its internal buffer
+	 * to accommodate a whole frame because then the internal buffer size
+	 * could not be limited, which is necessary in embedded applications.
+	 *
+	 * Ogg however grows its internal buffer until a whole page is present;
+	 * only then can you get decoded data out.  So we can't just ask for
+	 * the same number of bytes from Ogg, then pass what's decoded down to
+	 * libFLAC.  If what libFLAC is asking for will not contain a whole
+	 * page, then we will get no data from ogg_sync_pageout(), and at the
+	 * same time cannot just read more data from the client for the purpose
+	 * of getting a whole decoded page because the decoded size might be
+	 * larger than libFLAC's internal buffer.
+	 *
+	 * Instead, whenever this read callback wrapper is called, we will
+	 * continually request data from the client until we have at least one
+	 * page, and manage pages internally so that we can send pieces of
+	 * pages down to libFLAC in such a way that we obey its size
+	 * requirement.  To limit the amount of callbacks, we will always try
+	 * to read in enough pages to return the full number of bytes
+	 * requested.
+	 */
+	*bytes = 0;
+	while (*bytes < bytes_requested && !aspect->end_of_stream) {
+		if (aspect->have_working_page) {
+			if (aspect->have_working_packet) {
+				size_t n = bytes_requested - *bytes;
+				if ((size_t)aspect->working_packet.bytes <= n) {
+					/* the rest of the packet will fit in the buffer */
+					n = aspect->working_packet.bytes;
+					memcpy(buffer, aspect->working_packet.packet, n);
+					*bytes += n;
+					buffer += n;
+					aspect->have_working_packet = false;
+				}
+				else {
+					/* only n bytes of the packet will fit in the buffer */
+					memcpy(buffer, aspect->working_packet.packet, n);
+					*bytes += n;
+					buffer += n;
+					aspect->working_packet.packet += n;
+					aspect->working_packet.bytes -= n;
+				}
+			}
+			else {
+				/* try and get another packet */
+				const int ret = ogg_stream_packetout(&aspect->stream_state, &aspect->working_packet);
+				if (ret > 0) {
+					aspect->have_working_packet = true;
+					/* if it is the first header packet, check for magic and a supported Ogg FLAC mapping version */
+					if (aspect->working_packet.bytes > 0 && aspect->working_packet.packet[0] == FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE) {
+						const FLAC__byte *b = aspect->working_packet.packet;
+						const uint32_t header_length =
+							FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH +
+							FLAC__OGG_MAPPING_MAGIC_LENGTH +
+							FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH +
+							FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH +
+							FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH;
+						if (aspect->working_packet.bytes < (long)header_length)
+							return FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC;
+						b += FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH;
+						if (memcmp(b, FLAC__OGG_MAPPING_MAGIC, FLAC__OGG_MAPPING_MAGIC_LENGTH))
+							return FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC;
+						b += FLAC__OGG_MAPPING_MAGIC_LENGTH;
+						aspect->version_major = (uint32_t)(*b);
+						b += FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH;
+						aspect->version_minor = (uint32_t)(*b);
+						if (aspect->version_major != 1)
+							return FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION;
+						aspect->working_packet.packet += header_length;
+						aspect->working_packet.bytes -= header_length;
+					}
+				}
+				else if (ret == 0) {
+					aspect->have_working_page = false;
+				}
+				else { /* ret < 0 */
+					/* lost sync, we'll leave the working page for the next call */
+					return FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC;
+				}
+			}
+		}
+		else {
+			/* try and get another page */
+			const int ret = ogg_sync_pageout(&aspect->sync_state, &aspect->working_page);
+			if (ret > 0) {
+				/* got a page, grab the serial number if necessary */
+				if(aspect->need_serial_number) {
+					aspect->stream_state.serialno = aspect->serial_number = ogg_page_serialno(&aspect->working_page);
+					aspect->need_serial_number = false;
+				}
+				if(ogg_stream_pagein(&aspect->stream_state, &aspect->working_page) == 0) {
+					aspect->have_working_page = true;
+					aspect->have_working_packet = false;
+				}
+				/* else do nothing, could be a page from another stream */
+			}
+			else if (ret == 0) {
+				/* need more data */
+				const size_t ogg_bytes_to_read = flac_max(bytes_requested - *bytes, OGG_BYTES_CHUNK);
+				char *oggbuf = ogg_sync_buffer(&aspect->sync_state, ogg_bytes_to_read);
+
+				if(0 == oggbuf) {
+					return FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR;
+				}
+				else {
+					size_t ogg_bytes_read = ogg_bytes_to_read;
+
+					switch(read_callback(decoder, (FLAC__byte*)oggbuf, &ogg_bytes_read, client_data)) {
+						case FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK:
+							break;
+						case FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM:
+							aspect->end_of_stream = true;
+							break;
+						case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT:
+							return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
+						default:
+							FLAC__ASSERT(0);
+					}
+
+					if(ogg_sync_wrote(&aspect->sync_state, ogg_bytes_read) < 0) {
+						/* double protection; this will happen if the read callback returns more bytes than the max requested, which would overflow Ogg's internal buffer */
+						FLAC__ASSERT(0);
+						return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
+					}
+				}
+			}
+			else { /* ret < 0 */
+				/* lost sync, bail out */
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC;
+			}
+		}
+	}
+
+	if (aspect->end_of_stream && *bytes == 0) {
+		return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM;
+	}
+
+	return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_encoder_aspect.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_encoder_aspect.c
new file mode 100644
index 00000000..ae055c84
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_encoder_aspect.c
@@ -0,0 +1,228 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <string.h> /* for memset() */
+#include "FLAC/assert.h"
+#include "private/ogg_encoder_aspect.h"
+#include "private/ogg_mapping.h"
+
+static const FLAC__byte FLAC__OGG_MAPPING_VERSION_MAJOR = 1;
+static const FLAC__byte FLAC__OGG_MAPPING_VERSION_MINOR = 0;
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__bool FLAC__ogg_encoder_aspect_init(FLAC__OggEncoderAspect *aspect)
+{
+	/* we will determine the serial number later if necessary */
+	if(ogg_stream_init(&aspect->stream_state, aspect->serial_number) != 0)
+		return false;
+
+	aspect->seen_magic = false;
+	aspect->is_first_packet = true;
+	aspect->samples_written = 0;
+
+	return true;
+}
+
+void FLAC__ogg_encoder_aspect_finish(FLAC__OggEncoderAspect *aspect)
+{
+	(void)ogg_stream_clear(&aspect->stream_state);
+	/*@@@ what about the page? */
+}
+
+void FLAC__ogg_encoder_aspect_set_serial_number(FLAC__OggEncoderAspect *aspect, long value)
+{
+	aspect->serial_number = value;
+}
+
+FLAC__bool FLAC__ogg_encoder_aspect_set_num_metadata(FLAC__OggEncoderAspect *aspect, uint32_t value)
+{
+	if(value < (1u << FLAC__OGG_MAPPING_NUM_HEADERS_LEN)) {
+		aspect->num_metadata = value;
+		return true;
+	}
+	else
+		return false;
+}
+
+void FLAC__ogg_encoder_aspect_set_defaults(FLAC__OggEncoderAspect *aspect)
+{
+	aspect->serial_number = 0;
+	aspect->num_metadata = 0;
+}
+
+/*
+ * The basic FLAC -> Ogg mapping goes like this:
+ *
+ * - 'fLaC' magic and STREAMINFO block get combined into the first
+ *   packet.  The packet is prefixed with
+ *   + the one-byte packet type 0x7F
+ *   + 'FLAC' magic
+ *   + the 2 byte Ogg FLAC mapping version number
+ *   + tne 2 byte big-endian # of header packets
+ * - The first packet is flushed to the first page.
+ * - Each subsequent metadata block goes into its own packet.
+ * - Each metadata packet is flushed to page (this is not required,
+ *   the mapping only requires that a flush must occur after all
+ *   metadata is written).
+ * - Each subsequent FLAC audio frame goes into its own packet.
+ *
+ * WATCHOUT:
+ * This depends on the behavior of FLAC__StreamEncoder that we get a
+ * separate write callback for the fLaC magic, and then separate write
+ * callbacks for each metadata block and audio frame.
+ */
+FLAC__StreamEncoderWriteStatus FLAC__ogg_encoder_aspect_write_callback_wrapper(FLAC__OggEncoderAspect *aspect, const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame, FLAC__bool is_last_block, FLAC__OggEncoderAspectWriteCallbackProxy write_callback, void *encoder, void *client_data)
+{
+	/* WATCHOUT:
+	 * This depends on the behavior of FLAC__StreamEncoder that 'samples'
+	 * will be 0 for metadata writes.
+	 */
+	const FLAC__bool is_metadata = (samples == 0);
+
+	/*
+	 * Treat fLaC magic packet specially.  We will note when we see it, then
+	 * wait until we get the STREAMINFO and prepend it in that packet
+	 */
+	if(aspect->seen_magic) {
+		ogg_packet packet;
+		FLAC__byte synthetic_first_packet_body[
+			FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH +
+			FLAC__OGG_MAPPING_MAGIC_LENGTH +
+			FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH +
+			FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH +
+			FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH +
+			FLAC__STREAM_SYNC_LENGTH +
+			FLAC__STREAM_METADATA_HEADER_LENGTH +
+			FLAC__STREAM_METADATA_STREAMINFO_LENGTH
+		];
+
+		memset(&packet, 0, sizeof(packet));
+		packet.granulepos = aspect->samples_written + samples;
+
+		if(aspect->is_first_packet) {
+			FLAC__byte *b = synthetic_first_packet_body;
+			if(bytes != FLAC__STREAM_METADATA_HEADER_LENGTH + FLAC__STREAM_METADATA_STREAMINFO_LENGTH) {
+				/*
+				 * If we get here, our assumption about the way write callbacks happen
+				 * (explained above) is wrong
+				 */
+				FLAC__ASSERT(0);
+				return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+			}
+			/* add first header packet type */
+			*b = FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE;
+			b += FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH;
+			/* add 'FLAC' mapping magic */
+			memcpy(b, FLAC__OGG_MAPPING_MAGIC, FLAC__OGG_MAPPING_MAGIC_LENGTH);
+			b += FLAC__OGG_MAPPING_MAGIC_LENGTH;
+			/* add Ogg FLAC mapping major version number */
+			memcpy(b, &FLAC__OGG_MAPPING_VERSION_MAJOR, FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH);
+			b += FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH;
+			/* add Ogg FLAC mapping minor version number */
+			memcpy(b, &FLAC__OGG_MAPPING_VERSION_MINOR, FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH);
+			b += FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH;
+			/* add number of header packets */
+			*b = (FLAC__byte)(aspect->num_metadata >> 8);
+			b++;
+			*b = (FLAC__byte)(aspect->num_metadata);
+			b++;
+			/* add native FLAC 'fLaC' magic */
+			memcpy(b, FLAC__STREAM_SYNC_STRING, FLAC__STREAM_SYNC_LENGTH);
+			b += FLAC__STREAM_SYNC_LENGTH;
+			/* add STREAMINFO */
+			memcpy(b, buffer, bytes);
+			FLAC__ASSERT(b + bytes - synthetic_first_packet_body == sizeof(synthetic_first_packet_body));
+			packet.packet = (uint8_t *)synthetic_first_packet_body;
+			packet.bytes = sizeof(synthetic_first_packet_body);
+
+			packet.b_o_s = 1;
+			aspect->is_first_packet = false;
+		}
+		else {
+			packet.packet = (uint8_t *)buffer;
+			packet.bytes = bytes;
+		}
+
+		if(is_last_block) {
+			/* we used to check:
+			 * FLAC__ASSERT(total_samples_estimate == 0 || total_samples_estimate == aspect->samples_written + samples);
+			 * but it's really not useful since total_samples_estimate is an estimate and can be inexact
+			 */
+			packet.e_o_s = 1;
+		}
+
+		if(ogg_stream_packetin(&aspect->stream_state, &packet) != 0)
+			return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+
+		/*@@@ can't figure out a way to pass a useful number for 'samples' to the write_callback, so we'll just pass 0 */
+		if(is_metadata) {
+			while(ogg_stream_flush(&aspect->stream_state, &aspect->page) != 0) {
+				if(write_callback(encoder, aspect->page.header, aspect->page.header_len, 0, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
+					return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+				if(write_callback(encoder, aspect->page.body, aspect->page.body_len, 0, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
+					return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+			}
+		}
+		else {
+			while(ogg_stream_pageout(&aspect->stream_state, &aspect->page) != 0) {
+				if(write_callback(encoder, aspect->page.header, aspect->page.header_len, 0, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
+					return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+				if(write_callback(encoder, aspect->page.body, aspect->page.body_len, 0, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
+					return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+			}
+		}
+	}
+	else if(is_metadata && current_frame == 0 && samples == 0 && bytes == 4 && 0 == memcmp(buffer, FLAC__STREAM_SYNC_STRING, sizeof(FLAC__STREAM_SYNC_STRING))) {
+		aspect->seen_magic = true;
+	}
+	else {
+		/*
+		 * If we get here, our assumption about the way write callbacks happen
+		 * explained above is wrong
+		 */
+		FLAC__ASSERT(0);
+		return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+	}
+
+	aspect->samples_written += samples;
+
+	return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_helper.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_helper.c
new file mode 100644
index 00000000..acd945ac
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_helper.c
@@ -0,0 +1,210 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdlib.h> /* for malloc() */
+#include <string.h> /* for memcmp(), memcpy() */
+#include "FLAC/assert.h"
+#include "share/alloc.h"
+#include "private/ogg_helper.h"
+#include "protected/stream_encoder.h"
+
+
+static FLAC__bool full_read_(FLAC__StreamEncoder *encoder, FLAC__byte *buffer, size_t bytes, FLAC__StreamEncoderReadCallback read_callback, void *client_data)
+{
+	while(bytes > 0) {
+		size_t bytes_read = bytes;
+		switch(read_callback(encoder, buffer, &bytes_read, client_data)) {
+			case FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE:
+				bytes -= bytes_read;
+				buffer += bytes_read;
+				break;
+			case FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM:
+				if(bytes_read == 0) {
+					encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+					return false;
+				}
+				bytes -= bytes_read;
+				buffer += bytes_read;
+				break;
+			case FLAC__STREAM_ENCODER_READ_STATUS_ABORT:
+				encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+				return false;
+			case FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED:
+				return false;
+			default:
+				/* double protection: */
+				FLAC__ASSERT(0);
+				encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+				return false;
+		}
+	}
+
+	return true;
+}
+
+void simple_ogg_page__init(ogg_page *page)
+{
+	page->header = 0;
+	page->header_len = 0;
+	page->body = 0;
+	page->body_len = 0;
+}
+
+void simple_ogg_page__clear(ogg_page *page)
+{
+	if(page->header)
+		free(page->header);
+	if(page->body)
+		free(page->body);
+	simple_ogg_page__init(page);
+}
+
+FLAC__bool simple_ogg_page__get_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderReadCallback read_callback, void *client_data)
+{
+	static const uint32_t OGG_HEADER_FIXED_PORTION_LEN = 27;
+	static const uint32_t OGG_MAX_HEADER_LEN = 27/*OGG_HEADER_FIXED_PORTION_LEN*/ + 255;
+	FLAC__byte crc[4];
+	FLAC__StreamEncoderSeekStatus seek_status;
+
+	FLAC__ASSERT(page->header == 0);
+	FLAC__ASSERT(page->header_len == 0);
+	FLAC__ASSERT(page->body == 0);
+	FLAC__ASSERT(page->body_len == 0);
+
+	/* move the stream pointer to the supposed beginning of the page */
+	if(0 == seek_callback)
+		return false;
+	if((seek_status = seek_callback((FLAC__StreamEncoder*)encoder, position, client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
+		if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
+			encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return false;
+	}
+
+	/* allocate space for the page header */
+	if(0 == (page->header = safe_malloc_(OGG_MAX_HEADER_LEN))) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	/* read in the fixed part of the page header (up to but not including
+	 * the segment table */
+	if(!full_read_(encoder, page->header, OGG_HEADER_FIXED_PORTION_LEN, read_callback, client_data))
+		return false;
+
+	page->header_len = OGG_HEADER_FIXED_PORTION_LEN + page->header[26];
+
+	/* check to see if it's a correct, "simple" page (one packet only) */
+	if(
+		memcmp(page->header, "OggS", 4) ||               /* doesn't start with OggS */
+		(page->header[5] & 0x01) ||                      /* continued packet */
+		memcmp(page->header+6, "\0\0\0\0\0\0\0\0", 8) || /* granulepos is non-zero */
+		page->header[26] == 0                            /* packet is 0-size */
+	) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+		return false;
+	}
+
+	/* read in the segment table */
+	if(!full_read_(encoder, page->header + OGG_HEADER_FIXED_PORTION_LEN, page->header[26], read_callback, client_data))
+		return false;
+
+	{
+		uint32_t i;
+
+		/* check to see that it specifies a single packet */
+		for(i = 0; i < (uint32_t)page->header[26] - 1; i++) {
+			if(page->header[i + OGG_HEADER_FIXED_PORTION_LEN] != 255) {
+				encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+				return false;
+			}
+		}
+
+		page->body_len = 255 * i + page->header[i + OGG_HEADER_FIXED_PORTION_LEN];
+	}
+
+	/* allocate space for the page body */
+	if(0 == (page->body = safe_malloc_(page->body_len))) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	/* read in the page body */
+	if(!full_read_(encoder, page->body, page->body_len, read_callback, client_data))
+		return false;
+
+	/* check the CRC */
+	memcpy(crc, page->header+22, 4);
+	ogg_page_checksum_set(page);
+	if(memcmp(crc, page->header+22, 4)) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+		return false;
+	}
+
+	return true;
+}
+
+FLAC__bool simple_ogg_page__set_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderWriteCallback write_callback, void *client_data)
+{
+	FLAC__StreamEncoderSeekStatus seek_status;
+
+	FLAC__ASSERT(page->header != 0);
+	FLAC__ASSERT(page->header_len != 0);
+	FLAC__ASSERT(page->body != 0);
+	FLAC__ASSERT(page->body_len != 0);
+
+	/* move the stream pointer to the supposed beginning of the page */
+	if(0 == seek_callback)
+		return false;
+	if((seek_status = seek_callback((FLAC__StreamEncoder*)encoder, position, client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
+		if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
+			encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return false;
+	}
+
+	ogg_page_checksum_set(page);
+
+	/* re-write the page */
+	if(write_callback((FLAC__StreamEncoder*)encoder, page->header, page->header_len, 0, 0, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return false;
+	}
+	if(write_callback((FLAC__StreamEncoder*)encoder, page->body, page->body_len, 0, 0, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return false;
+	}
+
+	return true;
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_mapping.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_mapping.c
new file mode 100644
index 00000000..1bd8c3cb
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/ogg_mapping.c
@@ -0,0 +1,48 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/ogg_mapping.h"
+
+const uint32_t FLAC__OGG_MAPPING_PACKET_TYPE_LEN = 8; /* bits */
+
+const FLAC__byte FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE = 0x7f;
+
+const FLAC__byte * const FLAC__OGG_MAPPING_MAGIC = (const FLAC__byte * const)"FLAC";
+
+const uint32_t FLAC__OGG_MAPPING_VERSION_MAJOR_LEN = 8; /* bits */
+const uint32_t FLAC__OGG_MAPPING_VERSION_MINOR_LEN = 8; /* bits */
+
+const uint32_t FLAC__OGG_MAPPING_NUM_HEADERS_LEN = 16; /* bits */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_decoder.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_decoder.c
new file mode 100644
index 00000000..73cb0ae2
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_decoder.c
@@ -0,0 +1,3685 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h> /* for malloc() */
+#include <string.h> /* for memset/memcpy() */
+#include <sys/types.h> /* for off_t */
+#include <sys/stat.h>  /* for stat() */
+#include "share/compat.h"
+#include "FLAC/assert.h"
+#include "share/alloc.h"
+#include "protected/stream_decoder.h"
+#include "private/bitreader.h"
+#include "private/bitmath.h"
+#include "private/crc.h"
+#include "private/fixed.h"
+#include "private/format.h"
+#include "private/lpc.h"
+#include "private/md5.h"
+#include "private/memory.h"
+#include "private/macros.h"
+
+
+/* technically this should be in an "export.c" but this is convenient enough */
+FLAC_API int FLAC_API_SUPPORTS_OGG_FLAC = FLAC__HAS_OGG;
+
+
+/***********************************************************************
+ *
+ * Private static data
+ *
+ ***********************************************************************/
+
+static const FLAC__byte ID3V2_TAG_[3] = { 'I', 'D', '3' };
+
+/***********************************************************************
+ *
+ * Private class method prototypes
+ *
+ ***********************************************************************/
+
+static void set_defaults_(FLAC__StreamDecoder *decoder);
+static FILE *get_binary_stdin_(void);
+static FLAC__bool allocate_output_(FLAC__StreamDecoder *decoder, uint32_t size, uint32_t channels, uint32_t bps);
+static FLAC__bool has_id_filtered_(FLAC__StreamDecoder *decoder, FLAC__byte *id);
+static FLAC__bool find_metadata_(FLAC__StreamDecoder *decoder);
+static FLAC__bool read_metadata_(FLAC__StreamDecoder *decoder);
+static FLAC__bool read_metadata_streaminfo_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, uint32_t length);
+static FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, uint32_t length);
+static FLAC__bool read_metadata_vorbiscomment_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_VorbisComment *obj, uint32_t length);
+static FLAC__bool read_metadata_cuesheet_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_CueSheet *obj);
+static FLAC__bool read_metadata_picture_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_Picture *obj);
+static FLAC__bool skip_id3v2_tag_(FLAC__StreamDecoder *decoder);
+static FLAC__bool frame_sync_(FLAC__StreamDecoder *decoder);
+static FLAC__bool read_frame_(FLAC__StreamDecoder *decoder, FLAC__bool *got_a_frame, FLAC__bool do_full_decode);
+static FLAC__bool read_frame_header_(FLAC__StreamDecoder *decoder);
+static FLAC__bool read_subframe_(FLAC__StreamDecoder *decoder, uint32_t channel, uint32_t bps, FLAC__bool do_full_decode);
+static FLAC__bool read_subframe_constant_(FLAC__StreamDecoder *decoder, uint32_t channel, uint32_t bps, FLAC__bool do_full_decode);
+static FLAC__bool read_subframe_fixed_(FLAC__StreamDecoder *decoder, uint32_t channel, uint32_t bps, const uint32_t order, FLAC__bool do_full_decode);
+static FLAC__bool read_subframe_lpc_(FLAC__StreamDecoder *decoder, uint32_t channel, uint32_t bps, const uint32_t order, FLAC__bool do_full_decode);
+static FLAC__bool read_subframe_verbatim_(FLAC__StreamDecoder *decoder, uint32_t channel, uint32_t bps, FLAC__bool do_full_decode);
+static FLAC__bool read_residual_partitioned_rice_(FLAC__StreamDecoder *decoder, uint32_t predictor_order, uint32_t partition_order, FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents, FLAC__int32 *residual, FLAC__bool is_extended);
+static FLAC__bool read_zero_padding_(FLAC__StreamDecoder *decoder);
+static void       undo_channel_coding(FLAC__StreamDecoder *decoder);
+static FLAC__bool read_callback_(FLAC__byte buffer[], size_t *bytes, void *client_data);
+#if FLAC__HAS_OGG
+static FLAC__StreamDecoderReadStatus read_callback_ogg_aspect_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes);
+static FLAC__OggDecoderAspectReadStatus read_callback_proxy_(const void *void_decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
+#endif
+static FLAC__StreamDecoderWriteStatus write_audio_frame_to_client_(FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[]);
+static void send_error_to_client_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status);
+static FLAC__bool seek_to_absolute_sample_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample);
+#if FLAC__HAS_OGG
+static FLAC__bool seek_to_absolute_sample_ogg_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample);
+#endif
+static FLAC__StreamDecoderReadStatus file_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
+static FLAC__StreamDecoderSeekStatus file_seek_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
+static FLAC__StreamDecoderTellStatus file_tell_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
+static FLAC__StreamDecoderLengthStatus file_length_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
+static FLAC__bool file_eof_callback_(const FLAC__StreamDecoder *decoder, void *client_data);
+
+/***********************************************************************
+ *
+ * Private class data
+ *
+ ***********************************************************************/
+
+typedef struct FLAC__StreamDecoderPrivate {
+	FLAC__bool is_ogg;
+	FLAC__StreamDecoderReadCallback read_callback;
+	FLAC__StreamDecoderSeekCallback seek_callback;
+	FLAC__StreamDecoderTellCallback tell_callback;
+	FLAC__StreamDecoderLengthCallback length_callback;
+	FLAC__StreamDecoderEofCallback eof_callback;
+	FLAC__StreamDecoderWriteCallback write_callback;
+	FLAC__StreamDecoderMetadataCallback metadata_callback;
+	FLAC__StreamDecoderErrorCallback error_callback;
+	void *client_data;
+	FILE *file; /* only used if FLAC__stream_decoder_init_file()/FLAC__stream_decoder_init_file() called, else NULL */
+	FLAC__BitReader *input;
+	FLAC__int32 *output[FLAC__MAX_CHANNELS];
+	FLAC__int32 *residual[FLAC__MAX_CHANNELS]; /* WATCHOUT: these are the aligned pointers; the real pointers that should be free()'d are residual_unaligned[] below */
+	FLAC__int64 *side_subframe;
+	FLAC__bool side_subframe_in_use;
+	FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents[FLAC__MAX_CHANNELS];
+	uint32_t output_capacity, output_channels;
+	FLAC__uint32 fixed_block_size, next_fixed_block_size;
+	FLAC__uint64 samples_decoded;
+	FLAC__bool has_stream_info, has_seek_table;
+	FLAC__StreamMetadata stream_info;
+	FLAC__StreamMetadata seek_table;
+	FLAC__bool metadata_filter[128]; /* MAGIC number 128 == total number of metadata block types == 1 << 7 */
+	FLAC__byte *metadata_filter_ids;
+	size_t metadata_filter_ids_count, metadata_filter_ids_capacity; /* units for both are IDs, not bytes */
+	FLAC__Frame frame;
+	FLAC__bool cached; /* true if there is a byte in lookahead */
+	FLAC__byte header_warmup[2]; /* contains the sync code and reserved bits */
+	FLAC__byte lookahead; /* temp storage when we need to look ahead one byte in the stream */
+	/* unaligned (original) pointers to allocated data */
+	FLAC__int32 *residual_unaligned[FLAC__MAX_CHANNELS];
+	FLAC__bool do_md5_checking; /* initially gets protected_->md5_checking but is turned off after a seek or if the metadata has a zero MD5 */
+	FLAC__bool internal_reset_hack; /* used only during init() so we can call reset to set up the decoder without rewinding the input */
+	FLAC__bool is_seeking;
+	FLAC__MD5Context md5context;
+	FLAC__byte computed_md5sum[16]; /* this is the sum we computed from the decoded data */
+	/* (the rest of these are only used for seeking) */
+	FLAC__Frame last_frame; /* holds the info of the last frame we decoded or seeked to */
+	FLAC__bool last_frame_is_set;
+	FLAC__uint64 first_frame_offset; /* hint to the seek routine of where in the stream the first audio frame starts */
+	FLAC__uint64 last_seen_framesync; /* if tell callback works, the location of the last seen frame sync code, to rewind to if needed */
+	FLAC__uint64 target_sample;
+	uint32_t unparseable_frame_count; /* used to tell whether we're decoding a future version of FLAC or just got a bad sync */
+	FLAC__bool got_a_frame; /* hack needed in Ogg FLAC seek routine to check when process_single() actually writes a frame */
+} FLAC__StreamDecoderPrivate;
+
+/***********************************************************************
+ *
+ * Public static class data
+ *
+ ***********************************************************************/
+
+FLAC_API const char * const FLAC__StreamDecoderStateString[] = {
+	"FLAC__STREAM_DECODER_SEARCH_FOR_METADATA",
+	"FLAC__STREAM_DECODER_READ_METADATA",
+	"FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC",
+	"FLAC__STREAM_DECODER_READ_FRAME",
+	"FLAC__STREAM_DECODER_END_OF_STREAM",
+	"FLAC__STREAM_DECODER_OGG_ERROR",
+	"FLAC__STREAM_DECODER_SEEK_ERROR",
+	"FLAC__STREAM_DECODER_ABORTED",
+	"FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR",
+	"FLAC__STREAM_DECODER_UNINITIALIZED"
+};
+
+FLAC_API const char * const FLAC__StreamDecoderInitStatusString[] = {
+	"FLAC__STREAM_DECODER_INIT_STATUS_OK",
+	"FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER",
+	"FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS",
+	"FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR",
+	"FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE",
+	"FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED"
+};
+
+FLAC_API const char * const FLAC__StreamDecoderReadStatusString[] = {
+	"FLAC__STREAM_DECODER_READ_STATUS_CONTINUE",
+	"FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM",
+	"FLAC__STREAM_DECODER_READ_STATUS_ABORT"
+};
+
+FLAC_API const char * const FLAC__StreamDecoderSeekStatusString[] = {
+	"FLAC__STREAM_DECODER_SEEK_STATUS_OK",
+	"FLAC__STREAM_DECODER_SEEK_STATUS_ERROR",
+	"FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED"
+};
+
+FLAC_API const char * const FLAC__StreamDecoderTellStatusString[] = {
+	"FLAC__STREAM_DECODER_TELL_STATUS_OK",
+	"FLAC__STREAM_DECODER_TELL_STATUS_ERROR",
+	"FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED"
+};
+
+FLAC_API const char * const FLAC__StreamDecoderLengthStatusString[] = {
+	"FLAC__STREAM_DECODER_LENGTH_STATUS_OK",
+	"FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR",
+	"FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED"
+};
+
+FLAC_API const char * const FLAC__StreamDecoderWriteStatusString[] = {
+	"FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE",
+	"FLAC__STREAM_DECODER_WRITE_STATUS_ABORT"
+};
+
+FLAC_API const char * const FLAC__StreamDecoderErrorStatusString[] = {
+	"FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC",
+	"FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER",
+	"FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH",
+	"FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM",
+	"FLAC__STREAM_DECODER_ERROR_STATUS_BAD_METADATA"
+};
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+FLAC_API FLAC__StreamDecoder *FLAC__stream_decoder_new(void)
+{
+	FLAC__StreamDecoder *decoder;
+	uint32_t i;
+
+	FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
+
+	decoder = calloc(1, sizeof(FLAC__StreamDecoder));
+	if(decoder == 0) {
+		return 0;
+	}
+
+	decoder->protected_ = calloc(1, sizeof(FLAC__StreamDecoderProtected));
+	if(decoder->protected_ == 0) {
+		free(decoder);
+		return 0;
+	}
+
+	decoder->private_ = calloc(1, sizeof(FLAC__StreamDecoderPrivate));
+	if(decoder->private_ == 0) {
+		free(decoder->protected_);
+		free(decoder);
+		return 0;
+	}
+
+	decoder->private_->input = FLAC__bitreader_new();
+	if(decoder->private_->input == 0) {
+		free(decoder->private_);
+		free(decoder->protected_);
+		free(decoder);
+		return 0;
+	}
+
+	decoder->private_->metadata_filter_ids_capacity = 16;
+	if(0 == (decoder->private_->metadata_filter_ids = malloc((FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) * decoder->private_->metadata_filter_ids_capacity))) {
+		FLAC__bitreader_delete(decoder->private_->input);
+		free(decoder->private_);
+		free(decoder->protected_);
+		free(decoder);
+		return 0;
+	}
+
+	for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
+		decoder->private_->output[i] = 0;
+		decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
+	}
+
+	decoder->private_->side_subframe = 0;
+
+	decoder->private_->output_capacity = 0;
+	decoder->private_->output_channels = 0;
+	decoder->private_->has_seek_table = false;
+
+	for(i = 0; i < FLAC__MAX_CHANNELS; i++)
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&decoder->private_->partitioned_rice_contents[i]);
+
+	decoder->private_->file = 0;
+
+	set_defaults_(decoder);
+
+	decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
+
+	return decoder;
+}
+
+FLAC_API void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder)
+{
+	uint32_t i;
+
+	if (decoder == NULL)
+		return ;
+
+	FLAC__ASSERT(0 != decoder->protected_);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->private_->input);
+
+	(void)FLAC__stream_decoder_finish(decoder);
+
+	if(0 != decoder->private_->metadata_filter_ids)
+		free(decoder->private_->metadata_filter_ids);
+
+	FLAC__bitreader_delete(decoder->private_->input);
+
+	for(i = 0; i < FLAC__MAX_CHANNELS; i++)
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&decoder->private_->partitioned_rice_contents[i]);
+
+	free(decoder->private_);
+	free(decoder->protected_);
+	free(decoder);
+}
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+static FLAC__StreamDecoderInitStatus init_stream_internal_(
+	FLAC__StreamDecoder *decoder,
+	FLAC__StreamDecoderReadCallback read_callback,
+	FLAC__StreamDecoderSeekCallback seek_callback,
+	FLAC__StreamDecoderTellCallback tell_callback,
+	FLAC__StreamDecoderLengthCallback length_callback,
+	FLAC__StreamDecoderEofCallback eof_callback,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data,
+	FLAC__bool is_ogg
+)
+{
+	FLAC__ASSERT(0 != decoder);
+
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
+
+	if(FLAC__HAS_OGG == 0 && is_ogg)
+		return FLAC__STREAM_DECODER_INIT_STATUS_UNSUPPORTED_CONTAINER;
+
+	if(
+		0 == read_callback ||
+		0 == write_callback ||
+		0 == error_callback ||
+		(seek_callback && (0 == tell_callback || 0 == length_callback || 0 == eof_callback))
+	)
+		return FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
+
+#if FLAC__HAS_OGG
+	decoder->private_->is_ogg = is_ogg;
+	if(is_ogg && !FLAC__ogg_decoder_aspect_init(&decoder->protected_->ogg_decoder_aspect))
+		return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE;
+#endif
+
+	/* from here on, errors are fatal */
+
+	if(!FLAC__bitreader_init(decoder->private_->input, read_callback_, decoder)) {
+		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+		return FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR;
+	}
+
+	decoder->private_->read_callback = read_callback;
+	decoder->private_->seek_callback = seek_callback;
+	decoder->private_->tell_callback = tell_callback;
+	decoder->private_->length_callback = length_callback;
+	decoder->private_->eof_callback = eof_callback;
+	decoder->private_->write_callback = write_callback;
+	decoder->private_->metadata_callback = metadata_callback;
+	decoder->private_->error_callback = error_callback;
+	decoder->private_->client_data = client_data;
+	decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size = 0;
+	decoder->private_->samples_decoded = 0;
+	decoder->private_->has_stream_info = false;
+	decoder->private_->cached = false;
+
+	decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
+	decoder->private_->is_seeking = false;
+
+	decoder->private_->internal_reset_hack = true; /* so the following reset does not try to rewind the input */
+	if(!FLAC__stream_decoder_reset(decoder)) {
+		/* above call sets the state for us */
+		return FLAC__STREAM_DECODER_INIT_STATUS_MEMORY_ALLOCATION_ERROR;
+	}
+
+	return FLAC__STREAM_DECODER_INIT_STATUS_OK;
+}
+
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_stream(
+	FLAC__StreamDecoder *decoder,
+	FLAC__StreamDecoderReadCallback read_callback,
+	FLAC__StreamDecoderSeekCallback seek_callback,
+	FLAC__StreamDecoderTellCallback tell_callback,
+	FLAC__StreamDecoderLengthCallback length_callback,
+	FLAC__StreamDecoderEofCallback eof_callback,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+)
+{
+	return init_stream_internal_(
+		decoder,
+		read_callback,
+		seek_callback,
+		tell_callback,
+		length_callback,
+		eof_callback,
+		write_callback,
+		metadata_callback,
+		error_callback,
+		client_data,
+		/*is_ogg=*/false
+	);
+}
+
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_stream(
+	FLAC__StreamDecoder *decoder,
+	FLAC__StreamDecoderReadCallback read_callback,
+	FLAC__StreamDecoderSeekCallback seek_callback,
+	FLAC__StreamDecoderTellCallback tell_callback,
+	FLAC__StreamDecoderLengthCallback length_callback,
+	FLAC__StreamDecoderEofCallback eof_callback,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+)
+{
+	return init_stream_internal_(
+		decoder,
+		read_callback,
+		seek_callback,
+		tell_callback,
+		length_callback,
+		eof_callback,
+		write_callback,
+		metadata_callback,
+		error_callback,
+		client_data,
+		/*is_ogg=*/true
+	);
+}
+
+static FLAC__StreamDecoderInitStatus init_FILE_internal_(
+	FLAC__StreamDecoder *decoder,
+	FILE *file,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data,
+	FLAC__bool is_ogg
+)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != file);
+
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
+
+	if(0 == write_callback || 0 == error_callback)
+		return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
+
+	/*
+	 * To make sure that our file does not go unclosed after an error, we
+	 * must assign the FILE pointer before any further error can occur in
+	 * this routine.
+	 */
+	if(file == stdin)
+		file = get_binary_stdin_(); /* just to be safe */
+
+	decoder->private_->file = file;
+
+	return init_stream_internal_(
+		decoder,
+		file_read_callback_,
+		decoder->private_->file == stdin? 0: file_seek_callback_,
+		decoder->private_->file == stdin? 0: file_tell_callback_,
+		decoder->private_->file == stdin? 0: file_length_callback_,
+		file_eof_callback_,
+		write_callback,
+		metadata_callback,
+		error_callback,
+		client_data,
+		is_ogg
+	);
+}
+
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_FILE(
+	FLAC__StreamDecoder *decoder,
+	FILE *file,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+)
+{
+	return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/false);
+}
+
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_FILE(
+	FLAC__StreamDecoder *decoder,
+	FILE *file,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+)
+{
+	return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/true);
+}
+
+static FLAC__StreamDecoderInitStatus init_file_internal_(
+	FLAC__StreamDecoder *decoder,
+	const char *filename,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data,
+	FLAC__bool is_ogg
+)
+{
+	FILE *file;
+
+	FLAC__ASSERT(0 != decoder);
+
+	/*
+	 * To make sure that our file does not go unclosed after an error, we
+	 * have to do the same entrance checks here that are later performed
+	 * in FLAC__stream_decoder_init_FILE() before the FILE* is assigned.
+	 */
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_ALREADY_INITIALIZED;
+
+	if(0 == write_callback || 0 == error_callback)
+		return decoder->protected_->initstate = FLAC__STREAM_DECODER_INIT_STATUS_INVALID_CALLBACKS;
+
+	file = filename? flac_fopen(filename, "rb") : stdin;
+
+	if(0 == file)
+		return FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE;
+
+	return init_FILE_internal_(decoder, file, write_callback, metadata_callback, error_callback, client_data, is_ogg);
+}
+
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_file(
+	FLAC__StreamDecoder *decoder,
+	const char *filename,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+)
+{
+	return init_file_internal_(decoder, filename, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/false);
+}
+
+FLAC_API FLAC__StreamDecoderInitStatus FLAC__stream_decoder_init_ogg_file(
+	FLAC__StreamDecoder *decoder,
+	const char *filename,
+	FLAC__StreamDecoderWriteCallback write_callback,
+	FLAC__StreamDecoderMetadataCallback metadata_callback,
+	FLAC__StreamDecoderErrorCallback error_callback,
+	void *client_data
+)
+{
+	return init_file_internal_(decoder, filename, write_callback, metadata_callback, error_callback, client_data, /*is_ogg=*/true);
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder)
+{
+	FLAC__bool md5_failed = false;
+	uint32_t i;
+
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->protected_);
+
+	if(decoder->protected_->state == FLAC__STREAM_DECODER_UNINITIALIZED)
+		return true;
+
+	/* see the comment in FLAC__stream_decoder_reset() as to why we
+	 * always call FLAC__MD5Final()
+	 */
+	FLAC__MD5Final(decoder->private_->computed_md5sum, &decoder->private_->md5context);
+
+	free(decoder->private_->seek_table.data.seek_table.points);
+	decoder->private_->seek_table.data.seek_table.points = 0;
+	decoder->private_->has_seek_table = false;
+
+	FLAC__bitreader_free(decoder->private_->input);
+	for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
+		/* WATCHOUT:
+		 * FLAC__lpc_restore_signal_asm_ia32_mmx() and ..._intrin_sseN()
+		 * require that the output arrays have a buffer of up to 3 zeroes
+		 * in front (at negative indices) for alignment purposes;
+		 * we use 4 to keep the data well-aligned.
+		 */
+		if(0 != decoder->private_->output[i]) {
+			free(decoder->private_->output[i]-4);
+			decoder->private_->output[i] = 0;
+		}
+		if(0 != decoder->private_->residual_unaligned[i]) {
+			free(decoder->private_->residual_unaligned[i]);
+			decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
+		}
+	}
+	if(0 != decoder->private_->side_subframe) {
+		free(decoder->private_->side_subframe);
+		decoder->private_->side_subframe = 0;
+	}
+	decoder->private_->output_capacity = 0;
+	decoder->private_->output_channels = 0;
+
+#if FLAC__HAS_OGG
+	if(decoder->private_->is_ogg)
+		FLAC__ogg_decoder_aspect_finish(&decoder->protected_->ogg_decoder_aspect);
+#endif
+
+	if(0 != decoder->private_->file) {
+		if(decoder->private_->file != stdin)
+			fclose(decoder->private_->file);
+		decoder->private_->file = 0;
+	}
+
+	if(decoder->private_->do_md5_checking) {
+		if(memcmp(decoder->private_->stream_info.data.stream_info.md5sum, decoder->private_->computed_md5sum, 16))
+			md5_failed = true;
+	}
+	decoder->private_->is_seeking = false;
+
+	set_defaults_(decoder);
+
+	decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
+
+	return !md5_failed;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_set_ogg_serial_number(FLAC__StreamDecoder *decoder, long value)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->protected_);
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return false;
+#if FLAC__HAS_OGG
+	/* can't check decoder->private_->is_ogg since that's not set until init time */
+	FLAC__ogg_decoder_aspect_set_serial_number(&decoder->protected_->ogg_decoder_aspect, value);
+	return true;
+#else
+	(void)value;
+	return false;
+#endif
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_set_md5_checking(FLAC__StreamDecoder *decoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return false;
+	decoder->protected_->md5_checking = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->protected_);
+	FLAC__ASSERT((uint32_t)type <= FLAC__MAX_METADATA_TYPE_CODE);
+	/* double protection */
+	if((uint32_t)type > FLAC__MAX_METADATA_TYPE_CODE)
+		return false;
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return false;
+	decoder->private_->metadata_filter[type] = true;
+	if(type == FLAC__METADATA_TYPE_APPLICATION)
+		decoder->private_->metadata_filter_ids_count = 0;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->protected_);
+	FLAC__ASSERT(0 != id);
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return false;
+
+	if(decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
+		return true;
+
+	FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
+
+	if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
+		if(0 == (decoder->private_->metadata_filter_ids = safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+			return false;
+		}
+		decoder->private_->metadata_filter_ids_capacity *= 2;
+	}
+
+	memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
+	decoder->private_->metadata_filter_ids_count++;
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder)
+{
+	uint32_t i;
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->protected_);
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return false;
+	for(i = 0; i < sizeof(decoder->private_->metadata_filter) / sizeof(decoder->private_->metadata_filter[0]); i++)
+		decoder->private_->metadata_filter[i] = true;
+	decoder->private_->metadata_filter_ids_count = 0;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->protected_);
+	FLAC__ASSERT((uint32_t)type <= FLAC__MAX_METADATA_TYPE_CODE);
+	/* double protection */
+	if((uint32_t)type > FLAC__MAX_METADATA_TYPE_CODE)
+		return false;
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return false;
+	decoder->private_->metadata_filter[type] = false;
+	if(type == FLAC__METADATA_TYPE_APPLICATION)
+		decoder->private_->metadata_filter_ids_count = 0;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->protected_);
+	FLAC__ASSERT(0 != id);
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return false;
+
+	if(!decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
+		return true;
+
+	FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
+
+	if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
+		if(0 == (decoder->private_->metadata_filter_ids = safe_realloc_mul_2op_(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity, /*times*/2))) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+			return false;
+		}
+		decoder->private_->metadata_filter_ids_capacity *= 2;
+	}
+
+	memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
+	decoder->private_->metadata_filter_ids_count++;
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->protected_);
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
+		return false;
+	memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
+	decoder->private_->metadata_filter_ids_count = 0;
+	return true;
+}
+
+FLAC_API FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+	return decoder->protected_->state;
+}
+
+FLAC_API const char *FLAC__stream_decoder_get_resolved_state_string(const FLAC__StreamDecoder *decoder)
+{
+	return FLAC__StreamDecoderStateString[decoder->protected_->state];
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_get_md5_checking(const FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+	return decoder->protected_->md5_checking;
+}
+
+FLAC_API FLAC__uint64 FLAC__stream_decoder_get_total_samples(const FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+	return decoder->private_->has_stream_info? decoder->private_->stream_info.data.stream_info.total_samples : 0;
+}
+
+FLAC_API uint32_t FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+	return decoder->protected_->channels;
+}
+
+FLAC_API FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+	return decoder->protected_->channel_assignment;
+}
+
+FLAC_API uint32_t FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+	return decoder->protected_->bits_per_sample;
+}
+
+FLAC_API uint32_t FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+	return decoder->protected_->sample_rate;
+}
+
+FLAC_API uint32_t FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+	return decoder->protected_->blocksize;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_get_decode_position(const FLAC__StreamDecoder *decoder, FLAC__uint64 *position)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != position);
+
+	if(FLAC__HAS_OGG && decoder->private_->is_ogg)
+		return false;
+
+	if(0 == decoder->private_->tell_callback)
+		return false;
+	if(decoder->private_->tell_callback(decoder, position, decoder->private_->client_data) != FLAC__STREAM_DECODER_TELL_STATUS_OK)
+		return false;
+	/* should never happen since all FLAC frames and metadata blocks are byte aligned, but check just in case */
+	if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input))
+		return false;
+	FLAC__ASSERT(*position >= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder));
+	*position -= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder);
+	return true;
+}
+
+FLAC_API const void *FLAC__stream_decoder_get_client_data(FLAC__StreamDecoder *decoder)
+{
+	return decoder->private_->client_data;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->protected_);
+
+	if(!decoder->private_->internal_reset_hack && decoder->protected_->state == FLAC__STREAM_DECODER_UNINITIALIZED)
+		return false;
+
+	decoder->private_->samples_decoded = 0;
+	decoder->private_->do_md5_checking = false;
+	decoder->private_->last_seen_framesync = 0;
+
+#if FLAC__HAS_OGG
+	if(decoder->private_->is_ogg)
+		FLAC__ogg_decoder_aspect_flush(&decoder->protected_->ogg_decoder_aspect);
+#endif
+
+	if(!FLAC__bitreader_clear(decoder->private_->input)) {
+		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+	decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+	FLAC__ASSERT(0 != decoder->protected_);
+
+	if(!FLAC__stream_decoder_flush(decoder)) {
+		/* above call sets the state for us */
+		return false;
+	}
+
+#if FLAC__HAS_OGG
+	/*@@@ could go in !internal_reset_hack block below */
+	if(decoder->private_->is_ogg)
+		FLAC__ogg_decoder_aspect_reset(&decoder->protected_->ogg_decoder_aspect);
+#endif
+
+	/* Rewind if necessary.  If FLAC__stream_decoder_init() is calling us,
+	 * (internal_reset_hack) don't try to rewind since we are already at
+	 * the beginning of the stream and don't want to fail if the input is
+	 * not seekable.
+	 */
+	if(!decoder->private_->internal_reset_hack) {
+		if(decoder->private_->file == stdin)
+			return false; /* can't rewind stdin, reset fails */
+		if(decoder->private_->seek_callback && decoder->private_->seek_callback(decoder, 0, decoder->private_->client_data) == FLAC__STREAM_DECODER_SEEK_STATUS_ERROR)
+			return false; /* seekable and seek fails, reset fails */
+	}
+
+	decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_METADATA;
+
+	decoder->private_->has_stream_info = false;
+
+	free(decoder->private_->seek_table.data.seek_table.points);
+	decoder->private_->seek_table.data.seek_table.points = 0;
+	decoder->private_->has_seek_table = false;
+
+	decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
+	/*
+	 * This goes in reset() and not flush() because according to the spec, a
+	 * fixed-blocksize stream must stay that way through the whole stream.
+	 */
+	decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size = 0;
+
+	/* We initialize the FLAC__MD5Context even though we may never use it.  This
+	 * is because md5 checking may be turned on to start and then turned off if
+	 * a seek occurs.  So we init the context here and finalize it in
+	 * FLAC__stream_decoder_finish() to make sure things are always cleaned up
+	 * properly.
+	 */
+	if(!decoder->private_->internal_reset_hack) {
+		/* Only finish MD5 context when it has been initialized
+		 * (i.e. when internal_reset_hack is not set) */
+		FLAC__MD5Final(decoder->private_->computed_md5sum, &decoder->private_->md5context);
+	}
+	else
+		decoder->private_->internal_reset_hack = false;
+	FLAC__MD5Init(&decoder->private_->md5context);
+
+	decoder->private_->first_frame_offset = 0;
+	decoder->private_->unparseable_frame_count = 0;
+	decoder->private_->last_seen_framesync = 0;
+	decoder->private_->last_frame_is_set = false;
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder)
+{
+	FLAC__bool got_a_frame;
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+
+	while(1) {
+		switch(decoder->protected_->state) {
+			case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
+				if(!find_metadata_(decoder))
+					return false; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_READ_METADATA:
+				if(!read_metadata_(decoder))
+					return false; /* above function sets the status for us */
+				else
+					return true;
+			case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
+				if(!frame_sync_(decoder))
+					return true; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_READ_FRAME:
+				if(!read_frame_(decoder, &got_a_frame, /*do_full_decode=*/true))
+					return false; /* above function sets the status for us */
+				if(got_a_frame)
+					return true; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_END_OF_STREAM:
+			case FLAC__STREAM_DECODER_ABORTED:
+				return true;
+			default:
+				FLAC__ASSERT(0);
+				return false;
+		}
+	}
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+
+	while(1) {
+		switch(decoder->protected_->state) {
+			case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
+				if(!find_metadata_(decoder))
+					return false; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_READ_METADATA:
+				if(!read_metadata_(decoder))
+					return false; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
+			case FLAC__STREAM_DECODER_READ_FRAME:
+			case FLAC__STREAM_DECODER_END_OF_STREAM:
+			case FLAC__STREAM_DECODER_ABORTED:
+				return true;
+			default:
+				FLAC__ASSERT(0);
+				return false;
+		}
+	}
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder)
+{
+	FLAC__bool dummy;
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+
+	while(1) {
+		switch(decoder->protected_->state) {
+			case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
+				if(!find_metadata_(decoder))
+					return false; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_READ_METADATA:
+				if(!read_metadata_(decoder))
+					return false; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
+				if(!frame_sync_(decoder))
+					return true; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_READ_FRAME:
+				if(!read_frame_(decoder, &dummy, /*do_full_decode=*/true))
+					return false; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_END_OF_STREAM:
+			case FLAC__STREAM_DECODER_ABORTED:
+				return true;
+			default:
+				FLAC__ASSERT(0);
+				return false;
+		}
+	}
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_skip_single_frame(FLAC__StreamDecoder *decoder)
+{
+	FLAC__bool got_a_frame;
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->protected_);
+
+	while(1) {
+		switch(decoder->protected_->state) {
+			case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
+			case FLAC__STREAM_DECODER_READ_METADATA:
+				return false; /* above function sets the status for us */
+			case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
+				if(!frame_sync_(decoder))
+					return true; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_READ_FRAME:
+				if(!read_frame_(decoder, &got_a_frame, /*do_full_decode=*/false))
+					return false; /* above function sets the status for us */
+				if(got_a_frame)
+					return true; /* above function sets the status for us */
+				break;
+			case FLAC__STREAM_DECODER_END_OF_STREAM:
+			case FLAC__STREAM_DECODER_ABORTED:
+				return true;
+			default:
+				FLAC__ASSERT(0);
+				return false;
+		}
+	}
+}
+
+FLAC_API FLAC__bool FLAC__stream_decoder_seek_absolute(FLAC__StreamDecoder *decoder, FLAC__uint64 sample)
+{
+	FLAC__uint64 length;
+
+	FLAC__ASSERT(0 != decoder);
+
+	if(
+		decoder->protected_->state != FLAC__STREAM_DECODER_SEARCH_FOR_METADATA &&
+		decoder->protected_->state != FLAC__STREAM_DECODER_READ_METADATA &&
+		decoder->protected_->state != FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC &&
+		decoder->protected_->state != FLAC__STREAM_DECODER_READ_FRAME &&
+		decoder->protected_->state != FLAC__STREAM_DECODER_END_OF_STREAM
+	)
+		return false;
+
+	if(0 == decoder->private_->seek_callback)
+		return false;
+
+	FLAC__ASSERT(decoder->private_->seek_callback);
+	FLAC__ASSERT(decoder->private_->tell_callback);
+	FLAC__ASSERT(decoder->private_->length_callback);
+	FLAC__ASSERT(decoder->private_->eof_callback);
+
+	if(FLAC__stream_decoder_get_total_samples(decoder) > 0 && sample >= FLAC__stream_decoder_get_total_samples(decoder))
+		return false;
+
+	decoder->private_->is_seeking = true;
+
+	/* turn off md5 checking if a seek is attempted */
+	decoder->private_->do_md5_checking = false;
+
+	/* get the file length (currently our algorithm needs to know the length so it's also an error to get FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED) */
+	if(decoder->private_->length_callback(decoder, &length, decoder->private_->client_data) != FLAC__STREAM_DECODER_LENGTH_STATUS_OK) {
+		decoder->private_->is_seeking = false;
+		return false;
+	}
+
+	/* if we haven't finished processing the metadata yet, do that so we have the STREAMINFO, SEEK_TABLE, and first_frame_offset */
+	if(
+		decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_METADATA ||
+		decoder->protected_->state == FLAC__STREAM_DECODER_READ_METADATA
+	) {
+		if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder)) {
+			/* above call sets the state for us */
+			decoder->private_->is_seeking = false;
+			return false;
+		}
+		/* check this again in case we didn't know total_samples the first time */
+		if(FLAC__stream_decoder_get_total_samples(decoder) > 0 && sample >= FLAC__stream_decoder_get_total_samples(decoder)) {
+			decoder->private_->is_seeking = false;
+			return false;
+		}
+	}
+
+	{
+		const FLAC__bool ok =
+#if FLAC__HAS_OGG
+			decoder->private_->is_ogg?
+			seek_to_absolute_sample_ogg_(decoder, length, sample) :
+#endif
+			seek_to_absolute_sample_(decoder, length, sample)
+		;
+		decoder->private_->is_seeking = false;
+		return ok;
+	}
+}
+
+/***********************************************************************
+ *
+ * Protected class methods
+ *
+ ***********************************************************************/
+
+uint32_t FLAC__stream_decoder_get_input_bytes_unconsumed(const FLAC__StreamDecoder *decoder)
+{
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
+	FLAC__ASSERT(!(FLAC__bitreader_get_input_bits_unconsumed(decoder->private_->input) & 7));
+	return FLAC__bitreader_get_input_bits_unconsumed(decoder->private_->input) / 8;
+}
+
+/***********************************************************************
+ *
+ * Private class methods
+ *
+ ***********************************************************************/
+
+void set_defaults_(FLAC__StreamDecoder *decoder)
+{
+	decoder->private_->is_ogg = false;
+	decoder->private_->read_callback = 0;
+	decoder->private_->seek_callback = 0;
+	decoder->private_->tell_callback = 0;
+	decoder->private_->length_callback = 0;
+	decoder->private_->eof_callback = 0;
+	decoder->private_->write_callback = 0;
+	decoder->private_->metadata_callback = 0;
+	decoder->private_->error_callback = 0;
+	decoder->private_->client_data = 0;
+
+	memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
+	decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] = true;
+	decoder->private_->metadata_filter_ids_count = 0;
+
+	decoder->protected_->md5_checking = false;
+
+#if FLAC__HAS_OGG
+	FLAC__ogg_decoder_aspect_set_defaults(&decoder->protected_->ogg_decoder_aspect);
+#endif
+}
+
+/*
+ * This will forcibly set stdin to binary mode (for OSes that require it)
+ */
+FILE *get_binary_stdin_(void)
+{
+	/* if something breaks here it is probably due to the presence or
+	 * absence of an underscore before the identifiers 'setmode',
+	 * 'fileno', and/or 'O_BINARY'; check your system header files.
+	 */
+#if defined _MSC_VER || defined __MINGW32__
+	_setmode(_fileno(stdin), _O_BINARY);
+#elif defined __EMX__
+	setmode(fileno(stdin), O_BINARY);
+#endif
+
+	return stdin;
+}
+
+FLAC__bool allocate_output_(FLAC__StreamDecoder *decoder, uint32_t size, uint32_t channels, uint32_t bps)
+{
+	uint32_t i;
+	FLAC__int32 *tmp;
+
+	if(size <= decoder->private_->output_capacity && channels <= decoder->private_->output_channels &&
+	   (bps < 32 || decoder->private_->side_subframe != 0))
+		return true;
+
+	/* simply using realloc() is not practical because the number of channels may change mid-stream */
+
+	for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
+		if(0 != decoder->private_->output[i]) {
+			free(decoder->private_->output[i]-4);
+			decoder->private_->output[i] = 0;
+		}
+		if(0 != decoder->private_->residual_unaligned[i]) {
+			free(decoder->private_->residual_unaligned[i]);
+			decoder->private_->residual_unaligned[i] = decoder->private_->residual[i] = 0;
+		}
+	}
+
+	if(0 != decoder->private_->side_subframe) {
+		free(decoder->private_->side_subframe);
+		decoder->private_->side_subframe = 0;
+	}
+
+	for(i = 0; i < channels; i++) {
+		/* WATCHOUT:
+		 * FLAC__lpc_restore_signal_asm_ia32_mmx() and ..._intrin_sseN()
+		 * require that the output arrays have a buffer of up to 3 zeroes
+		 * in front (at negative indices) for alignment purposes;
+		 * we use 4 to keep the data well-aligned.
+		 */
+		tmp = safe_malloc_muladd2_(sizeof(FLAC__int32), /*times (*/size, /*+*/4/*)*/);
+		if(tmp == 0) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+			return false;
+		}
+		memset(tmp, 0, sizeof(FLAC__int32)*4);
+		decoder->private_->output[i] = tmp + 4;
+
+		if(!FLAC__memory_alloc_aligned_int32_array(size, &decoder->private_->residual_unaligned[i], &decoder->private_->residual[i])) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+			return false;
+		}
+	}
+
+	if(bps == 32) {
+		decoder->private_->side_subframe = safe_malloc_mul_2op_p(sizeof(FLAC__int64), /*times (*/size);
+		if(decoder->private_->side_subframe == NULL) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+			return false;
+		}
+	}
+
+	decoder->private_->output_capacity = size;
+	decoder->private_->output_channels = channels;
+
+	return true;
+}
+
+FLAC__bool has_id_filtered_(FLAC__StreamDecoder *decoder, FLAC__byte *id)
+{
+	size_t i;
+
+	FLAC__ASSERT(0 != decoder);
+	FLAC__ASSERT(0 != decoder->private_);
+
+	for(i = 0; i < decoder->private_->metadata_filter_ids_count; i++)
+		if(0 == memcmp(decoder->private_->metadata_filter_ids + i * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8)))
+			return true;
+
+	return false;
+}
+
+FLAC__bool find_metadata_(FLAC__StreamDecoder *decoder)
+{
+	FLAC__uint32 x;
+	uint32_t i, id;
+	FLAC__bool first = true;
+
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
+
+	for(i = id = 0; i < 4; ) {
+		if(decoder->private_->cached) {
+			x = (FLAC__uint32)decoder->private_->lookahead;
+			decoder->private_->cached = false;
+		}
+		else {
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
+				return false; /* read_callback_ sets the state for us */
+		}
+		if(x == FLAC__STREAM_SYNC_STRING[i]) {
+			first = true;
+			i++;
+			id = 0;
+			continue;
+		}
+
+		if(id >= 3)
+			return false;
+
+		if(x == ID3V2_TAG_[id]) {
+			id++;
+			i = 0;
+			if(id == 3) {
+				if(!skip_id3v2_tag_(decoder))
+					return false; /* skip_id3v2_tag_ sets the state for us */
+			}
+			continue;
+		}
+		id = 0;
+		if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
+			decoder->private_->header_warmup[0] = (FLAC__byte)x;
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
+				return false; /* read_callback_ sets the state for us */
+
+			/* we have to check if we just read two 0xff's in a row; the second may actually be the beginning of the sync code */
+			/* else we have to check if the second byte is the end of a sync code */
+			if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
+				decoder->private_->lookahead = (FLAC__byte)x;
+				decoder->private_->cached = true;
+			}
+			else if(x >> 1 == 0x7c) { /* MAGIC NUMBER for the last 6 sync bits and reserved 7th bit */
+				decoder->private_->header_warmup[1] = (FLAC__byte)x;
+				decoder->protected_->state = FLAC__STREAM_DECODER_READ_FRAME;
+				return true;
+			}
+		}
+		i = 0;
+		if(first) {
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+			first = false;
+		}
+	}
+
+	decoder->protected_->state = FLAC__STREAM_DECODER_READ_METADATA;
+	return true;
+}
+
+FLAC__bool read_metadata_(FLAC__StreamDecoder *decoder)
+{
+	FLAC__bool is_last;
+	FLAC__uint32 i, x, type, length;
+
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
+
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_IS_LAST_LEN))
+		return false; /* read_callback_ sets the state for us */
+	is_last = x? true : false;
+
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &type, FLAC__STREAM_METADATA_TYPE_LEN))
+		return false; /* read_callback_ sets the state for us */
+
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &length, FLAC__STREAM_METADATA_LENGTH_LEN))
+		return false; /* read_callback_ sets the state for us */
+
+	if(type == FLAC__METADATA_TYPE_STREAMINFO) {
+		if(!read_metadata_streaminfo_(decoder, is_last, length))
+			return false;
+
+		decoder->private_->has_stream_info = true;
+		if(0 == memcmp(decoder->private_->stream_info.data.stream_info.md5sum, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16))
+			decoder->private_->do_md5_checking = false;
+		if(!decoder->private_->is_seeking && decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] && decoder->private_->metadata_callback)
+			decoder->private_->metadata_callback(decoder, &decoder->private_->stream_info, decoder->private_->client_data);
+	}
+	else if(type == FLAC__METADATA_TYPE_SEEKTABLE) {
+		/* just in case we already have a seek table, and reading the next one fails: */
+		decoder->private_->has_seek_table = false;
+
+		if(!read_metadata_seektable_(decoder, is_last, length))
+			return false;
+
+		decoder->private_->has_seek_table = true;
+		if(!decoder->private_->is_seeking && decoder->private_->metadata_filter[FLAC__METADATA_TYPE_SEEKTABLE] && decoder->private_->metadata_callback)
+			decoder->private_->metadata_callback(decoder, &decoder->private_->seek_table, decoder->private_->client_data);
+	}
+	else {
+		FLAC__bool skip_it = !decoder->private_->metadata_filter[type];
+		uint32_t real_length = length;
+		FLAC__StreamMetadata block;
+
+		memset(&block, 0, sizeof(block));
+		block.is_last = is_last;
+		block.type = (FLAC__MetadataType)type;
+		block.length = length;
+
+		if(type == FLAC__METADATA_TYPE_APPLICATION) {
+			if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8))
+				return false; /* read_callback_ sets the state for us */
+
+			if(real_length < FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) { /* underflow check */
+				decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;/*@@@@@@ maybe wrong error? need to resync?*/
+				return false;
+			}
+
+			real_length -= FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8;
+
+			if(decoder->private_->metadata_filter_ids_count > 0 && has_id_filtered_(decoder, block.data.application.id))
+				skip_it = !skip_it;
+		}
+
+		if(skip_it) {
+			if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, real_length))
+				return false; /* read_callback_ sets the state for us */
+		}
+		else {
+			FLAC__bool ok = true;
+			FLAC__bitreader_set_limit(decoder->private_->input, real_length*8);
+			switch(type) {
+				case FLAC__METADATA_TYPE_PADDING:
+					/* skip the padding bytes */
+					if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, real_length))
+						ok = false; /* read_callback_ sets the state for us */
+					break;
+				case FLAC__METADATA_TYPE_APPLICATION:
+					/* remember, we read the ID already */
+					if(real_length > 0) {
+						if(0 == (block.data.application.data = malloc(real_length))) {
+							decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+							ok = false;
+						}
+						else if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.application.data, real_length))
+							ok = false; /* read_callback_ sets the state for us */
+					}
+					else
+						block.data.application.data = 0;
+					break;
+				case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+					if(!read_metadata_vorbiscomment_(decoder, &block.data.vorbis_comment, real_length))
+						ok = false;
+					break;
+				case FLAC__METADATA_TYPE_CUESHEET:
+					if(!read_metadata_cuesheet_(decoder, &block.data.cue_sheet))
+						ok = false;
+					break;
+				case FLAC__METADATA_TYPE_PICTURE:
+					if(!read_metadata_picture_(decoder, &block.data.picture))
+						ok = false;
+					break;
+				case FLAC__METADATA_TYPE_STREAMINFO:
+				case FLAC__METADATA_TYPE_SEEKTABLE:
+					FLAC__ASSERT(0);
+					break;
+				default:
+					if(real_length > 0) {
+						if(0 == (block.data.unknown.data = malloc(real_length))) {
+							decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+							ok = false;
+						}
+						else if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, block.data.unknown.data, real_length))
+							ok = false; /* read_callback_ sets the state for us */
+					}
+					else
+						block.data.unknown.data = 0;
+					break;
+			}
+			if(FLAC__bitreader_limit_remaining(decoder->private_->input) > 0) {
+				/* Content in metadata block didn't fit in block length
+				 * We cannot know whether the length or the content was
+				 * corrupt, so stop parsing metadata */
+				send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_METADATA);
+				if(decoder->protected_->state == FLAC__STREAM_DECODER_READ_METADATA)
+					decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+				ok = false;
+			}
+			FLAC__bitreader_remove_limit(decoder->private_->input);
+			if(ok && !decoder->private_->is_seeking && decoder->private_->metadata_callback)
+				decoder->private_->metadata_callback(decoder, &block, decoder->private_->client_data);
+
+			/* now we have to free any malloc()ed data in the block */
+			switch(type) {
+				case FLAC__METADATA_TYPE_PADDING:
+					break;
+				case FLAC__METADATA_TYPE_APPLICATION:
+					if(0 != block.data.application.data)
+						free(block.data.application.data);
+					break;
+				case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+					if(0 != block.data.vorbis_comment.vendor_string.entry)
+						free(block.data.vorbis_comment.vendor_string.entry);
+					if(block.data.vorbis_comment.num_comments > 0)
+						for(i = 0; i < block.data.vorbis_comment.num_comments; i++)
+							if(0 != block.data.vorbis_comment.comments[i].entry)
+								free(block.data.vorbis_comment.comments[i].entry);
+					if(0 != block.data.vorbis_comment.comments)
+						free(block.data.vorbis_comment.comments);
+					break;
+				case FLAC__METADATA_TYPE_CUESHEET:
+					if(block.data.cue_sheet.num_tracks > 0 && 0 != block.data.cue_sheet.tracks)
+						for(i = 0; i < block.data.cue_sheet.num_tracks; i++)
+							if(0 != block.data.cue_sheet.tracks[i].indices)
+								free(block.data.cue_sheet.tracks[i].indices);
+					if(0 != block.data.cue_sheet.tracks)
+						free(block.data.cue_sheet.tracks);
+					break;
+				case FLAC__METADATA_TYPE_PICTURE:
+					if(0 != block.data.picture.mime_type)
+						free(block.data.picture.mime_type);
+					if(0 != block.data.picture.description)
+						free(block.data.picture.description);
+					if(0 != block.data.picture.data)
+						free(block.data.picture.data);
+					break;
+				case FLAC__METADATA_TYPE_STREAMINFO:
+				case FLAC__METADATA_TYPE_SEEKTABLE:
+					FLAC__ASSERT(0);
+				default:
+					if(0 != block.data.unknown.data)
+						free(block.data.unknown.data);
+					break;
+			}
+
+			if(!ok) /* anything that unsets "ok" should also make sure decoder->protected_->state is updated */
+				return false;
+		}
+	}
+
+	if(is_last) {
+		/* if this fails, it's OK, it's just a hint for the seek routine */
+		if(!FLAC__stream_decoder_get_decode_position(decoder, &decoder->private_->first_frame_offset))
+			decoder->private_->first_frame_offset = 0;
+		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+	}
+
+	return true;
+}
+
+FLAC__bool read_metadata_streaminfo_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, uint32_t length)
+{
+	FLAC__uint32 x;
+	uint32_t bits, used_bits = 0;
+
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
+
+	decoder->private_->stream_info.type = FLAC__METADATA_TYPE_STREAMINFO;
+	decoder->private_->stream_info.is_last = is_last;
+	decoder->private_->stream_info.length = length;
+
+	bits = FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN;
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, bits))
+		return false; /* read_callback_ sets the state for us */
+	decoder->private_->stream_info.data.stream_info.min_blocksize = x;
+	used_bits += bits;
+
+	bits = FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN;
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
+		return false; /* read_callback_ sets the state for us */
+	decoder->private_->stream_info.data.stream_info.max_blocksize = x;
+	used_bits += bits;
+
+	bits = FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN;
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
+		return false; /* read_callback_ sets the state for us */
+	decoder->private_->stream_info.data.stream_info.min_framesize = x;
+	used_bits += bits;
+
+	bits = FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN;
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
+		return false; /* read_callback_ sets the state for us */
+	decoder->private_->stream_info.data.stream_info.max_framesize = x;
+	used_bits += bits;
+
+	bits = FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN;
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
+		return false; /* read_callback_ sets the state for us */
+	decoder->private_->stream_info.data.stream_info.sample_rate = x;
+	used_bits += bits;
+
+	bits = FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN;
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
+		return false; /* read_callback_ sets the state for us */
+	decoder->private_->stream_info.data.stream_info.channels = x+1;
+	used_bits += bits;
+
+	bits = FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN;
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
+		return false; /* read_callback_ sets the state for us */
+	decoder->private_->stream_info.data.stream_info.bits_per_sample = x+1;
+	used_bits += bits;
+
+	bits = FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN;
+	if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &decoder->private_->stream_info.data.stream_info.total_samples, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
+		return false; /* read_callback_ sets the state for us */
+	used_bits += bits;
+
+	if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, decoder->private_->stream_info.data.stream_info.md5sum, 16))
+		return false; /* read_callback_ sets the state for us */
+	used_bits += 16*8;
+
+	/* skip the rest of the block */
+	FLAC__ASSERT(used_bits % 8 == 0);
+	if (length < (used_bits / 8))
+		return false; /* read_callback_ sets the state for us */
+	length -= (used_bits / 8);
+	if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
+		return false; /* read_callback_ sets the state for us */
+
+	return true;
+}
+
+FLAC__bool read_metadata_seektable_(FLAC__StreamDecoder *decoder, FLAC__bool is_last, uint32_t length)
+{
+	FLAC__uint32 i, x;
+	FLAC__uint64 xx;
+
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
+
+	decoder->private_->seek_table.type = FLAC__METADATA_TYPE_SEEKTABLE;
+	decoder->private_->seek_table.is_last = is_last;
+	decoder->private_->seek_table.length = length;
+
+	decoder->private_->seek_table.data.seek_table.num_points = length / FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
+
+	/* use realloc since we may pass through here several times (e.g. after seeking) */
+	if(0 == (decoder->private_->seek_table.data.seek_table.points = safe_realloc_mul_2op_(decoder->private_->seek_table.data.seek_table.points, decoder->private_->seek_table.data.seek_table.num_points, /*times*/sizeof(FLAC__StreamMetadata_SeekPoint)))) {
+		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+	for(i = 0; i < decoder->private_->seek_table.data.seek_table.num_points; i++) {
+		if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &xx, FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN))
+			return false; /* read_callback_ sets the state for us */
+		decoder->private_->seek_table.data.seek_table.points[i].sample_number = xx;
+
+		if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &xx, FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN))
+			return false; /* read_callback_ sets the state for us */
+		decoder->private_->seek_table.data.seek_table.points[i].stream_offset = xx;
+
+		if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN))
+			return false; /* read_callback_ sets the state for us */
+		decoder->private_->seek_table.data.seek_table.points[i].frame_samples = x;
+	}
+	length -= (decoder->private_->seek_table.data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH);
+	/* if there is a partial point left, skip over it */
+	if(length > 0) {
+		/*@@@ do a send_error_to_client_() here?  there's an argument for either way */
+		if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
+			return false; /* read_callback_ sets the state for us */
+	}
+
+	return true;
+}
+
+FLAC__bool read_metadata_vorbiscomment_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_VorbisComment *obj, uint32_t length)
+{
+	FLAC__uint32 i;
+
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
+
+	/* read vendor string */
+	if (length >= 8) {
+		length -= 8; /* vendor string length + num comments entries alone take 8 bytes */
+		FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN == 32);
+		if (!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->vendor_string.length))
+			return false; /* read_callback_ sets the state for us */
+		if (obj->vendor_string.length > 0) {
+			if (length < obj->vendor_string.length) {
+				obj->vendor_string.length = 0;
+				obj->vendor_string.entry = 0;
+				goto skip;
+			}
+			else
+				length -= obj->vendor_string.length;
+			if (0 == (obj->vendor_string.entry = safe_malloc_add_2op_(obj->vendor_string.length, /*+*/1))) {
+				decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+				return false;
+			}
+			if (!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->vendor_string.entry, obj->vendor_string.length))
+				return false; /* read_callback_ sets the state for us */
+			obj->vendor_string.entry[obj->vendor_string.length] = '\0';
+		}
+		else
+			obj->vendor_string.entry = 0;
+
+		/* read num comments */
+		FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN == 32);
+		if (!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->num_comments))
+			return false; /* read_callback_ sets the state for us */
+
+		/* read comments */
+		if (obj->num_comments > 100000) {
+			/* Possibly malicious file. */
+			obj->num_comments = 0;
+			return false;
+		}
+		if (obj->num_comments > 0) {
+			if (0 == (obj->comments = safe_malloc_mul_2op_p(obj->num_comments, /*times*/sizeof(FLAC__StreamMetadata_VorbisComment_Entry)))) {
+				obj->num_comments = 0;
+				decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+				return false;
+			}
+			for (i = 0; i < obj->num_comments; i++) {
+				/* Initialize here just to make sure. */
+				obj->comments[i].length = 0;
+				obj->comments[i].entry = 0;
+
+				FLAC__ASSERT(FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN == 32);
+				if (length < 4) {
+					obj->num_comments = i;
+					goto skip;
+				}
+				else
+					length -= 4;
+				if (!FLAC__bitreader_read_uint32_little_endian(decoder->private_->input, &obj->comments[i].length)) {
+					obj->num_comments = i;
+					return false; /* read_callback_ sets the state for us */
+				}
+				if (obj->comments[i].length > 0) {
+					if (length < obj->comments[i].length) {
+						obj->num_comments = i;
+						goto skip;
+					}
+					else
+						length -= obj->comments[i].length;
+					if (0 == (obj->comments[i].entry = safe_malloc_add_2op_(obj->comments[i].length, /*+*/1))) {
+						decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+						obj->num_comments = i;
+						return false;
+					}
+					memset (obj->comments[i].entry, 0, obj->comments[i].length) ;
+					if (!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->comments[i].entry, obj->comments[i].length)) {
+						/* Current i-th entry is bad, so we delete it. */
+						free (obj->comments[i].entry) ;
+						obj->comments[i].entry = NULL ;
+						obj->num_comments = i;
+						goto skip;
+					}
+					obj->comments[i].entry[obj->comments[i].length] = '\0';
+				}
+				else
+					obj->comments[i].entry = 0;
+			}
+		}
+	}
+
+  skip:
+	if (length > 0) {
+		/* length > 0 can only happen on files with invalid data in comments */
+		if(obj->num_comments < 1) {
+			free(obj->comments);
+			obj->comments = NULL;
+		}
+		if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, length))
+			return false; /* read_callback_ sets the state for us */
+	}
+
+	return true;
+}
+
+FLAC__bool read_metadata_cuesheet_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_CueSheet *obj)
+{
+	FLAC__uint32 i, j, x;
+
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
+
+	memset(obj, 0, sizeof(FLAC__StreamMetadata_CueSheet));
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
+	if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)obj->media_catalog_number, FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN/8))
+		return false; /* read_callback_ sets the state for us */
+
+	if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &obj->lead_in, FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN))
+		return false; /* read_callback_ sets the state for us */
+
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN))
+		return false; /* read_callback_ sets the state for us */
+	obj->is_cd = x? true : false;
+
+	if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN))
+		return false; /* read_callback_ sets the state for us */
+
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN))
+		return false; /* read_callback_ sets the state for us */
+	obj->num_tracks = x;
+
+	if(obj->num_tracks > 0) {
+		if(0 == (obj->tracks = safe_calloc_(obj->num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track)))) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+			return false;
+		}
+		for(i = 0; i < obj->num_tracks; i++) {
+			FLAC__StreamMetadata_CueSheet_Track *track = &obj->tracks[i];
+			if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &track->offset, FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN))
+				return false; /* read_callback_ sets the state for us */
+
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN))
+				return false; /* read_callback_ sets the state for us */
+			track->number = (FLAC__byte)x;
+
+			FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
+			if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)track->isrc, FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN/8))
+				return false; /* read_callback_ sets the state for us */
+
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN))
+				return false; /* read_callback_ sets the state for us */
+			track->type = x;
+
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN))
+				return false; /* read_callback_ sets the state for us */
+			track->pre_emphasis = x;
+
+			if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN))
+				return false; /* read_callback_ sets the state for us */
+
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN))
+				return false; /* read_callback_ sets the state for us */
+			track->num_indices = (FLAC__byte)x;
+
+			if(track->num_indices > 0) {
+				if(0 == (track->indices = safe_calloc_(track->num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index)))) {
+					decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+					return false;
+				}
+				for(j = 0; j < track->num_indices; j++) {
+					FLAC__StreamMetadata_CueSheet_Index *indx = &track->indices[j];
+					if(!FLAC__bitreader_read_raw_uint64(decoder->private_->input, &indx->offset, FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN))
+						return false; /* read_callback_ sets the state for us */
+
+					if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN))
+						return false; /* read_callback_ sets the state for us */
+					indx->number = (FLAC__byte)x;
+
+					if(!FLAC__bitreader_skip_bits_no_crc(decoder->private_->input, FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN))
+						return false; /* read_callback_ sets the state for us */
+				}
+			}
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool read_metadata_picture_(FLAC__StreamDecoder *decoder, FLAC__StreamMetadata_Picture *obj)
+{
+	FLAC__uint32 x;
+
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
+
+	/* read type */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_TYPE_LEN))
+		return false; /* read_callback_ sets the state for us */
+	if(x < FLAC__STREAM_METADATA_PICTURE_TYPE_UNDEFINED)
+		obj->type = x;
+	else
+		obj->type = FLAC__STREAM_METADATA_PICTURE_TYPE_OTHER;
+
+	/* read MIME type */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN))
+		return false; /* read_callback_ sets the state for us */
+	if(FLAC__bitreader_limit_remaining(decoder->private_->input) < x){
+		FLAC__bitreader_limit_invalidate(decoder->private_->input);
+		return false;
+	}
+	if(0 == (obj->mime_type = safe_malloc_add_2op_(x, /*+*/1))) {
+		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+	if(x > 0) {
+		if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, (FLAC__byte*)obj->mime_type, x))
+			return false; /* read_callback_ sets the state for us */
+	}
+	obj->mime_type[x] = '\0';
+
+	/* read description */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN))
+		return false; /* read_callback_ sets the state for us */
+	if(FLAC__bitreader_limit_remaining(decoder->private_->input) < x){
+		FLAC__bitreader_limit_invalidate(decoder->private_->input);
+		return false;
+	}
+	if(0 == (obj->description = safe_malloc_add_2op_(x, /*+*/1))) {
+		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+	if(x > 0) {
+		if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->description, x))
+			return false; /* read_callback_ sets the state for us */
+	}
+	obj->description[x] = '\0';
+
+	/* read width */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->width, FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN))
+		return false; /* read_callback_ sets the state for us */
+
+	/* read height */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->height, FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN))
+		return false; /* read_callback_ sets the state for us */
+
+	/* read depth */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->depth, FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN))
+		return false; /* read_callback_ sets the state for us */
+
+	/* read colors */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &obj->colors, FLAC__STREAM_METADATA_PICTURE_COLORS_LEN))
+		return false; /* read_callback_ sets the state for us */
+
+	/* read data */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &(obj->data_length), FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN))
+		return false; /* read_callback_ sets the state for us */
+	if(FLAC__bitreader_limit_remaining(decoder->private_->input) < obj->data_length){
+		FLAC__bitreader_limit_invalidate(decoder->private_->input);
+		return false;
+	}
+	if(0 == (obj->data = safe_malloc_(obj->data_length))) {
+		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+	if(obj->data_length > 0) {
+		if(!FLAC__bitreader_read_byte_block_aligned_no_crc(decoder->private_->input, obj->data, obj->data_length))
+			return false; /* read_callback_ sets the state for us */
+	}
+
+	return true;
+}
+
+FLAC__bool skip_id3v2_tag_(FLAC__StreamDecoder *decoder)
+{
+	FLAC__uint32 x;
+	uint32_t i, skip;
+
+	/* skip the version and flags bytes */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 24))
+		return false; /* read_callback_ sets the state for us */
+	/* get the size (in bytes) to skip */
+	skip = 0;
+	for(i = 0; i < 4; i++) {
+		if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
+			return false; /* read_callback_ sets the state for us */
+		skip <<= 7;
+		skip |= (x & 0x7f);
+	}
+	/* skip the rest of the tag */
+	if(!FLAC__bitreader_skip_byte_block_aligned_no_crc(decoder->private_->input, skip))
+		return false; /* read_callback_ sets the state for us */
+	return true;
+}
+
+FLAC__bool frame_sync_(FLAC__StreamDecoder *decoder)
+{
+	FLAC__uint32 x;
+	FLAC__bool first = true;
+
+	/* make sure we're byte aligned */
+	if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input)) {
+		if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__bitreader_bits_left_for_byte_alignment(decoder->private_->input)))
+			return false; /* read_callback_ sets the state for us */
+	}
+
+	while(1) {
+		if(decoder->private_->cached) {
+			x = (FLAC__uint32)decoder->private_->lookahead;
+			decoder->private_->cached = false;
+		}
+		else {
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
+				return false; /* read_callback_ sets the state for us */
+		}
+		if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
+			decoder->private_->header_warmup[0] = (FLAC__byte)x;
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
+				return false; /* read_callback_ sets the state for us */
+
+			/* we have to check if we just read two 0xff's in a row; the second may actually be the beginning of the sync code */
+			/* else we have to check if the second byte is the end of a sync code */
+			if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
+				decoder->private_->lookahead = (FLAC__byte)x;
+				decoder->private_->cached = true;
+			}
+			else if(x >> 1 == 0x7c) { /* MAGIC NUMBER for the last 6 sync bits and reserved 7th bit */
+				decoder->private_->header_warmup[1] = (FLAC__byte)x;
+				decoder->protected_->state = FLAC__STREAM_DECODER_READ_FRAME;
+
+				/* Save location so we can rewind in case the frame turns
+				 * out to be invalid after the header */
+				FLAC__bitreader_set_framesync_location(decoder->private_->input);
+				if(!FLAC__stream_decoder_get_decode_position(decoder, &decoder->private_->last_seen_framesync))
+					decoder->private_->last_seen_framesync = 0;
+				return true;
+			}
+		}
+		if(first) {
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+			first = false;
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool read_frame_(FLAC__StreamDecoder *decoder, FLAC__bool *got_a_frame, FLAC__bool do_full_decode)
+{
+	uint32_t channel;
+	uint32_t i;
+	uint32_t frame_crc; /* the one we calculate from the input stream */
+	FLAC__uint32 x;
+
+	*got_a_frame = false;
+	decoder->private_->side_subframe_in_use = false;
+
+	/* init the CRC */
+	frame_crc = 0;
+	frame_crc = FLAC__CRC16_UPDATE(decoder->private_->header_warmup[0], frame_crc);
+	frame_crc = FLAC__CRC16_UPDATE(decoder->private_->header_warmup[1], frame_crc);
+	FLAC__bitreader_reset_read_crc16(decoder->private_->input, (FLAC__uint16)frame_crc);
+
+	if(!read_frame_header_(decoder))
+		return false;
+	if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means we didn't sync on a valid header */
+		return true;
+	if(!allocate_output_(decoder, decoder->private_->frame.header.blocksize, decoder->private_->frame.header.channels, decoder->private_->frame.header.bits_per_sample))
+		return false;
+	for(channel = 0; channel < decoder->private_->frame.header.channels; channel++) {
+		/*
+		 * first figure the correct bits-per-sample of the subframe
+		 */
+		uint32_t bps = decoder->private_->frame.header.bits_per_sample;
+		switch(decoder->private_->frame.header.channel_assignment) {
+			case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
+				/* no adjustment needed */
+				break;
+			case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
+				FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
+				if(channel == 1)
+					bps++;
+				break;
+			case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
+				FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
+				if(channel == 0)
+					bps++;
+				break;
+			case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
+				FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
+				if(channel == 1)
+					bps++;
+				break;
+			default:
+				FLAC__ASSERT(0);
+		}
+		/*
+		 * now read it
+		 */
+		if(!read_subframe_(decoder, channel, bps, do_full_decode)){
+			/* read_callback_ sets the state for us */
+			if(decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
+				break;
+			else
+				return false;
+		}
+	}
+
+	if(decoder->protected_->state != FLAC__STREAM_DECODER_END_OF_STREAM)
+		if(!read_zero_padding_(decoder))
+			return false;
+
+	/*
+	 * Read the frame CRC-16 from the footer and check
+	 */
+	if(decoder->protected_->state == FLAC__STREAM_DECODER_READ_FRAME) {
+		frame_crc = FLAC__bitreader_get_read_crc16(decoder->private_->input);
+		if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, FLAC__FRAME_FOOTER_CRC_LEN)) {
+			/* read_callback_ sets the state for us */
+			if(decoder->protected_->state != FLAC__STREAM_DECODER_END_OF_STREAM)
+				return false;
+		}
+#ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+	}
+	if(decoder->protected_->state == FLAC__STREAM_DECODER_READ_FRAME && frame_crc == x) {
+#endif
+		if(do_full_decode) {
+			/* Undo any special channel coding */
+			undo_channel_coding(decoder);
+			/* Check whether decoded data actually fits bps */
+			for(channel = 0; channel < decoder->private_->frame.header.channels; channel++) {
+				for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
+					int shift_bits = 32 - decoder->private_->frame.header.bits_per_sample;
+					/* Check whether shift_bits MSBs are 'empty' by shifting up and down */
+					if((decoder->private_->output[channel][i] < (INT32_MIN >> shift_bits)) ||
+					   (decoder->private_->output[channel][i] > (INT32_MAX >> shift_bits))) {
+						/* Bad frame, emit error */
+						send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH);
+						decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+						break;
+					}
+				}
+			}
+		}
+	}
+#ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+	else if (decoder->protected_->state == FLAC__STREAM_DECODER_READ_FRAME) {
+		/* Bad frame, emit error */
+		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH);
+		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+	}
+#endif
+
+	/* Check whether frames are missing, if so, add silence to compensate */
+	if(decoder->private_->last_frame_is_set && decoder->protected_->state == FLAC__STREAM_DECODER_READ_FRAME && !decoder->private_->is_seeking && do_full_decode) {
+		FLAC__ASSERT(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
+		FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
+		if(decoder->private_->last_frame.header.number.sample_number + decoder->private_->last_frame.header.blocksize < decoder->private_->frame.header.number.sample_number) {
+			uint32_t padding_samples_needed = decoder->private_->frame.header.number.sample_number - (decoder->private_->last_frame.header.number.sample_number + decoder->private_->last_frame.header.blocksize);
+
+			/* Do some extra validation to assure last frame an current frame
+			 * header are both valid before adding silence inbetween
+			 * Technically both frames could be valid with differing sample_rates,
+			 * channels and bits_per_sample, but it is quite rare */
+			if(decoder->private_->last_frame.header.sample_rate == decoder->private_->frame.header.sample_rate &&
+			   decoder->private_->last_frame.header.channels == decoder->private_->frame.header.channels &&
+			   decoder->private_->last_frame.header.bits_per_sample == decoder->private_->frame.header.bits_per_sample &&
+			   decoder->private_->last_frame.header.blocksize >= 16) {
+
+				FLAC__Frame empty_frame;
+				empty_frame.header = decoder->private_->last_frame.header;
+				empty_frame.footer.crc = 0;
+				/* No repairs larger than 5 seconds or 50 frames are made, to not
+				 * unexpectedly create enormous files when one of the headers was
+				 * corrupt after all */
+				if(padding_samples_needed > (5*empty_frame.header.sample_rate))
+					padding_samples_needed = 5*empty_frame.header.sample_rate;
+				if(padding_samples_needed > (50*empty_frame.header.blocksize))
+					padding_samples_needed = 50*empty_frame.header.blocksize;
+				while(padding_samples_needed){
+					empty_frame.header.number.sample_number += empty_frame.header.blocksize;
+					if(padding_samples_needed < empty_frame.header.blocksize)
+						empty_frame.header.blocksize = padding_samples_needed;
+					padding_samples_needed -= empty_frame.header.blocksize;
+					decoder->protected_->blocksize = empty_frame.header.blocksize;
+
+					FLAC__ASSERT(empty_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
+					decoder->private_->samples_decoded = empty_frame.header.number.sample_number + empty_frame.header.blocksize;
+
+					if(!allocate_output_(decoder, empty_frame.header.blocksize, empty_frame.header.channels, empty_frame.header.bits_per_sample))
+						return false;
+
+					for(channel = 0; channel < empty_frame.header.channels; channel++) {
+						empty_frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_CONSTANT;
+						empty_frame.subframes[channel].data.constant.value = 0;
+						empty_frame.subframes[channel].wasted_bits = 0;
+						memset(decoder->private_->output[channel], 0, sizeof(FLAC__int32) * empty_frame.header.blocksize);
+					}
+
+					if(write_audio_frame_to_client_(decoder, &empty_frame, (const FLAC__int32 * const *)decoder->private_->output) != FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE) {
+						decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
+						return false;
+					}
+				}
+			}
+		}
+	}
+
+	if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC || decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM) {
+		/* Got corruption, rewind if possible. Return value of seek
+		* isn't checked, if the seek fails the decoder will continue anyway */
+		if(!FLAC__bitreader_rewind_to_after_last_seen_framesync(decoder->private_->input)){
+#ifndef NDEBUG
+			fprintf(stderr, "Rewinding, seeking necessary\n");
+#endif
+			if(decoder->private_->seek_callback && decoder->private_->last_seen_framesync){
+				/* Last framesync isn't in bitreader anymore, rewind with seek if possible */
+#ifndef NDEBUG
+				FLAC__uint64 current_decode_position;
+				if(FLAC__stream_decoder_get_decode_position(decoder, &current_decode_position))
+					fprintf(stderr, "Bitreader was %" PRIu64 " bytes short\n", current_decode_position-decoder->private_->last_seen_framesync);
+#endif
+				if(decoder->private_->seek_callback(decoder, decoder->private_->last_seen_framesync, decoder->private_->client_data) == FLAC__STREAM_DECODER_SEEK_STATUS_ERROR) {
+					decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+					return false;
+				}
+				if(!FLAC__bitreader_clear(decoder->private_->input)) {
+					decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+					return false;
+				}
+			}
+		}
+#ifndef NDEBUG
+		else{
+			fprintf(stderr, "Rewinding, seeking not necessary\n");
+		}
+#endif
+	}
+	else {
+		*got_a_frame = true;
+
+		/* we wait to update fixed_block_size until here, when we're sure we've got a proper frame and hence a correct blocksize */
+		if(decoder->private_->next_fixed_block_size)
+			decoder->private_->fixed_block_size = decoder->private_->next_fixed_block_size;
+
+		/* put the latest values into the public section of the decoder instance */
+		decoder->protected_->channels = decoder->private_->frame.header.channels;
+		decoder->protected_->channel_assignment = decoder->private_->frame.header.channel_assignment;
+		decoder->protected_->bits_per_sample = decoder->private_->frame.header.bits_per_sample;
+		decoder->protected_->sample_rate = decoder->private_->frame.header.sample_rate;
+		decoder->protected_->blocksize = decoder->private_->frame.header.blocksize;
+
+		FLAC__ASSERT(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
+		decoder->private_->samples_decoded = decoder->private_->frame.header.number.sample_number + decoder->private_->frame.header.blocksize;
+
+		/* write it */
+		if(do_full_decode) {
+			if(write_audio_frame_to_client_(decoder, &decoder->private_->frame, (const FLAC__int32 * const *)decoder->private_->output) != FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE) {
+				decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
+				return false;
+			}
+		}
+	}
+
+	decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+	return true;
+}
+
+FLAC__bool read_frame_header_(FLAC__StreamDecoder *decoder)
+{
+	FLAC__uint32 x;
+	FLAC__uint64 xx;
+	uint32_t i, blocksize_hint = 0, sample_rate_hint = 0;
+	FLAC__byte crc8, raw_header[16]; /* MAGIC NUMBER based on the maximum frame header size, including CRC */
+	uint32_t raw_header_len;
+	FLAC__bool is_unparseable = false;
+
+	FLAC__ASSERT(FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input));
+
+	/* init the raw header with the saved bits from synchronization */
+	raw_header[0] = decoder->private_->header_warmup[0];
+	raw_header[1] = decoder->private_->header_warmup[1];
+	raw_header_len = 2;
+
+	/* check to make sure that reserved bit is 0 */
+	if(raw_header[1] & 0x02) /* MAGIC NUMBER */
+		is_unparseable = true;
+
+	/*
+	 * Note that along the way as we read the header, we look for a sync
+	 * code inside.  If we find one it would indicate that our original
+	 * sync was bad since there cannot be a sync code in a valid header.
+	 *
+	 * Three kinds of things can go wrong when reading the frame header:
+	 *  1) We may have sync'ed incorrectly and not landed on a frame header.
+	 *     If we don't find a sync code, it can end up looking like we read
+	 *     a valid but unparseable header, until getting to the frame header
+	 *     CRC.  Even then we could get a false positive on the CRC.
+	 *  2) We may have sync'ed correctly but on an unparseable frame (from a
+	 *     future encoder).
+	 *  3) We may be on a damaged frame which appears valid but unparseable.
+	 *
+	 * For all these reasons, we try and read a complete frame header as
+	 * long as it seems valid, even if unparseable, up until the frame
+	 * header CRC.
+	 */
+
+	/*
+	 * read in the raw header as bytes so we can CRC it, and parse it on the way
+	 */
+	for(i = 0; i < 2; i++) {
+		if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
+			return false; /* read_callback_ sets the state for us */
+		if(x == 0xff) { /* MAGIC NUMBER for the first 8 frame sync bits */
+			/* if we get here it means our original sync was erroneous since the sync code cannot appear in the header */
+			decoder->private_->lookahead = (FLAC__byte)x;
+			decoder->private_->cached = true;
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+			return true;
+		}
+		raw_header[raw_header_len++] = (FLAC__byte)x;
+	}
+
+	switch(x = raw_header[2] >> 4) {
+		case 0:
+			is_unparseable = true;
+			break;
+		case 1:
+			decoder->private_->frame.header.blocksize = 192;
+			break;
+		case 2:
+		case 3:
+		case 4:
+		case 5:
+			decoder->private_->frame.header.blocksize = 576 << (x-2);
+			break;
+		case 6:
+		case 7:
+			blocksize_hint = x;
+			break;
+		case 8:
+		case 9:
+		case 10:
+		case 11:
+		case 12:
+		case 13:
+		case 14:
+		case 15:
+			decoder->private_->frame.header.blocksize = 256 << (x-8);
+			break;
+		default:
+			FLAC__ASSERT(0);
+			break;
+	}
+
+	switch(x = raw_header[2] & 0x0f) {
+		case 0:
+			if(decoder->private_->has_stream_info)
+				decoder->private_->frame.header.sample_rate = decoder->private_->stream_info.data.stream_info.sample_rate;
+			else
+				is_unparseable = true;
+			break;
+		case 1:
+			decoder->private_->frame.header.sample_rate = 88200;
+			break;
+		case 2:
+			decoder->private_->frame.header.sample_rate = 176400;
+			break;
+		case 3:
+			decoder->private_->frame.header.sample_rate = 192000;
+			break;
+		case 4:
+			decoder->private_->frame.header.sample_rate = 8000;
+			break;
+		case 5:
+			decoder->private_->frame.header.sample_rate = 16000;
+			break;
+		case 6:
+			decoder->private_->frame.header.sample_rate = 22050;
+			break;
+		case 7:
+			decoder->private_->frame.header.sample_rate = 24000;
+			break;
+		case 8:
+			decoder->private_->frame.header.sample_rate = 32000;
+			break;
+		case 9:
+			decoder->private_->frame.header.sample_rate = 44100;
+			break;
+		case 10:
+			decoder->private_->frame.header.sample_rate = 48000;
+			break;
+		case 11:
+			decoder->private_->frame.header.sample_rate = 96000;
+			break;
+		case 12:
+		case 13:
+		case 14:
+			sample_rate_hint = x;
+			break;
+		case 15:
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+			return true;
+		default:
+			FLAC__ASSERT(0);
+	}
+
+	x = (uint32_t)(raw_header[3] >> 4);
+	if(x & 8) {
+		decoder->private_->frame.header.channels = 2;
+		switch(x & 7) {
+			case 0:
+				decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE;
+				break;
+			case 1:
+				decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE;
+				break;
+			case 2:
+				decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_MID_SIDE;
+				break;
+			default:
+				is_unparseable = true;
+				break;
+		}
+	}
+	else {
+		decoder->private_->frame.header.channels = (uint32_t)x + 1;
+		decoder->private_->frame.header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT;
+	}
+
+	switch(x = (uint32_t)(raw_header[3] & 0x0e) >> 1) {
+		case 0:
+			if(decoder->private_->has_stream_info)
+				decoder->private_->frame.header.bits_per_sample = decoder->private_->stream_info.data.stream_info.bits_per_sample;
+			else
+				is_unparseable = true;
+			break;
+		case 1:
+			decoder->private_->frame.header.bits_per_sample = 8;
+			break;
+		case 2:
+			decoder->private_->frame.header.bits_per_sample = 12;
+			break;
+		case 3:
+			is_unparseable = true;
+			break;
+		case 4:
+			decoder->private_->frame.header.bits_per_sample = 16;
+			break;
+		case 5:
+			decoder->private_->frame.header.bits_per_sample = 20;
+			break;
+		case 6:
+			decoder->private_->frame.header.bits_per_sample = 24;
+			break;
+		case 7:
+			decoder->private_->frame.header.bits_per_sample = 32;
+			break;
+		default:
+			FLAC__ASSERT(0);
+			break;
+	}
+
+#ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+	/* check to make sure that reserved bit is 0 */
+	if(raw_header[3] & 0x01) /* MAGIC NUMBER */
+		is_unparseable = true;
+#endif
+
+	/* read the frame's starting sample number (or frame number as the case may be) */
+	if(
+		raw_header[1] & 0x01 ||
+		/*@@@ this clause is a concession to the old way of doing variable blocksize; the only known implementation is flake and can probably be removed without inconveniencing anyone */
+		(decoder->private_->has_stream_info && decoder->private_->stream_info.data.stream_info.min_blocksize != decoder->private_->stream_info.data.stream_info.max_blocksize)
+	) { /* variable blocksize */
+		if(!FLAC__bitreader_read_utf8_uint64(decoder->private_->input, &xx, raw_header, &raw_header_len))
+			return false; /* read_callback_ sets the state for us */
+		if(xx == FLAC__U64L(0xffffffffffffffff)) { /* i.e. non-UTF8 code... */
+			decoder->private_->lookahead = raw_header[raw_header_len-1]; /* back up as much as we can */
+			decoder->private_->cached = true;
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+			return true;
+		}
+		decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER;
+		decoder->private_->frame.header.number.sample_number = xx;
+	}
+	else { /* fixed blocksize */
+		if(!FLAC__bitreader_read_utf8_uint32(decoder->private_->input, &x, raw_header, &raw_header_len))
+			return false; /* read_callback_ sets the state for us */
+		if(x == 0xffffffff) { /* i.e. non-UTF8 code... */
+			decoder->private_->lookahead = raw_header[raw_header_len-1]; /* back up as much as we can */
+			decoder->private_->cached = true;
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+			return true;
+		}
+		decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER;
+		decoder->private_->frame.header.number.frame_number = x;
+	}
+
+	if(blocksize_hint) {
+		if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
+			return false; /* read_callback_ sets the state for us */
+		raw_header[raw_header_len++] = (FLAC__byte)x;
+		if(blocksize_hint == 7) {
+			FLAC__uint32 _x;
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &_x, 8))
+				return false; /* read_callback_ sets the state for us */
+			raw_header[raw_header_len++] = (FLAC__byte)_x;
+			x = (x << 8) | _x;
+		}
+		decoder->private_->frame.header.blocksize = x+1;
+	}
+
+	if(sample_rate_hint) {
+		if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
+			return false; /* read_callback_ sets the state for us */
+		raw_header[raw_header_len++] = (FLAC__byte)x;
+		if(sample_rate_hint != 12) {
+			FLAC__uint32 _x;
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &_x, 8))
+				return false; /* read_callback_ sets the state for us */
+			raw_header[raw_header_len++] = (FLAC__byte)_x;
+			x = (x << 8) | _x;
+		}
+		if(sample_rate_hint == 12)
+			decoder->private_->frame.header.sample_rate = x*1000;
+		else if(sample_rate_hint == 13)
+			decoder->private_->frame.header.sample_rate = x;
+		else
+			decoder->private_->frame.header.sample_rate = x*10;
+	}
+
+	/* read the CRC-8 byte */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8))
+		return false; /* read_callback_ sets the state for us */
+	crc8 = (FLAC__byte)x;
+
+#ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+	if(FLAC__crc8(raw_header, raw_header_len) != crc8) {
+		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER);
+		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+		return true;
+	}
+#endif
+
+	/* calculate the sample number from the frame number if needed */
+	decoder->private_->next_fixed_block_size = 0;
+	if(decoder->private_->frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER) {
+		x = decoder->private_->frame.header.number.frame_number;
+		decoder->private_->frame.header.number_type = FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER;
+		if(decoder->private_->fixed_block_size)
+			decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->fixed_block_size * (FLAC__uint64)x;
+		else if(decoder->private_->has_stream_info) {
+			if(decoder->private_->stream_info.data.stream_info.min_blocksize == decoder->private_->stream_info.data.stream_info.max_blocksize) {
+				decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->stream_info.data.stream_info.min_blocksize * (FLAC__uint64)x;
+				decoder->private_->next_fixed_block_size = decoder->private_->stream_info.data.stream_info.max_blocksize;
+			}
+			else
+				is_unparseable = true;
+		}
+		else if(x == 0) {
+			decoder->private_->frame.header.number.sample_number = 0;
+			decoder->private_->next_fixed_block_size = decoder->private_->frame.header.blocksize;
+		}
+		else {
+			/* can only get here if the stream has invalid frame numbering and no STREAMINFO, so assume it's not the last (possibly short) frame */
+			decoder->private_->frame.header.number.sample_number = (FLAC__uint64)decoder->private_->frame.header.blocksize * (FLAC__uint64)x;
+		}
+	}
+
+	if(is_unparseable) {
+		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
+		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+		return true;
+	}
+
+	return true;
+}
+
+FLAC__bool read_subframe_(FLAC__StreamDecoder *decoder, uint32_t channel, uint32_t bps, FLAC__bool do_full_decode)
+{
+	FLAC__uint32 x;
+	FLAC__bool wasted_bits;
+	uint32_t i;
+
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &x, 8)) /* MAGIC NUMBER */
+		return false; /* read_callback_ sets the state for us */
+
+	wasted_bits = (x & 1);
+	x &= 0xfe;
+
+	if(wasted_bits) {
+		uint32_t u;
+		if(!FLAC__bitreader_read_unary_unsigned(decoder->private_->input, &u))
+			return false; /* read_callback_ sets the state for us */
+		decoder->private_->frame.subframes[channel].wasted_bits = u+1;
+		if (decoder->private_->frame.subframes[channel].wasted_bits >= bps)
+			return false;
+		bps -= decoder->private_->frame.subframes[channel].wasted_bits;
+	}
+	else
+		decoder->private_->frame.subframes[channel].wasted_bits = 0;
+
+	/*
+	 * Lots of magic numbers here
+	 */
+	if(x & 0x80) {
+		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+		return true;
+	}
+	else if(x == 0) {
+		if(!read_subframe_constant_(decoder, channel, bps, do_full_decode))
+			return false;
+	}
+	else if(x == 2) {
+		if(!read_subframe_verbatim_(decoder, channel, bps, do_full_decode))
+			return false;
+	}
+	else if(x < 16) {
+		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
+		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+		return true;
+	}
+	else if(x <= 24) {
+		uint32_t predictor_order = (x>>1)&7;
+		if(decoder->private_->frame.header.blocksize <= predictor_order){
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+			return true;
+		}
+		if(!read_subframe_fixed_(decoder, channel, bps, predictor_order, do_full_decode))
+			return false;
+		if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
+			return true;
+	}
+	else if(x < 64) {
+		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
+		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+		return true;
+	}
+	else {
+		uint32_t predictor_order = ((x>>1)&31)+1;
+		if(decoder->private_->frame.header.blocksize <= predictor_order){
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+			return true;
+		}
+		if(!read_subframe_lpc_(decoder, channel, bps, predictor_order, do_full_decode))
+			return false;
+		if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC) /* means bad sync or got corruption */
+			return true;
+	}
+
+	if(wasted_bits && do_full_decode) {
+		x = decoder->private_->frame.subframes[channel].wasted_bits;
+		if((bps + x) < 33) {
+			for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
+				uint32_t val = decoder->private_->output[channel][i];
+				decoder->private_->output[channel][i] = (val << x);
+			}
+		}
+		else {
+			/* When there are wasted bits, bps is never 33 and so
+			 * side_subframe is never already in use */
+			FLAC__ASSERT(!decoder->private_->side_subframe_in_use);
+			decoder->private_->side_subframe_in_use = true;
+			for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
+				uint64_t val = decoder->private_->output[channel][i];
+				decoder->private_->side_subframe[i] = (val << x);
+			}
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool read_subframe_constant_(FLAC__StreamDecoder *decoder, uint32_t channel, uint32_t bps, FLAC__bool do_full_decode)
+{
+	FLAC__Subframe_Constant *subframe = &decoder->private_->frame.subframes[channel].data.constant;
+	FLAC__int64 x;
+	uint32_t i;
+
+	decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_CONSTANT;
+
+	if(!FLAC__bitreader_read_raw_int64(decoder->private_->input, &x, bps))
+		return false; /* read_callback_ sets the state for us */
+
+	subframe->value = x;
+
+	/* decode the subframe */
+	if(do_full_decode) {
+		if(bps <= 32) {
+			FLAC__int32 *output = decoder->private_->output[channel];
+			for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
+				output[i] = x;
+		} else {
+			FLAC__int64 *output = decoder->private_->side_subframe;
+			decoder->private_->side_subframe_in_use = true;
+			for(i = 0; i < decoder->private_->frame.header.blocksize; i++)
+				output[i] = x;
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool read_subframe_fixed_(FLAC__StreamDecoder *decoder, uint32_t channel, uint32_t bps, const uint32_t order, FLAC__bool do_full_decode)
+{
+	FLAC__Subframe_Fixed *subframe = &decoder->private_->frame.subframes[channel].data.fixed;
+	FLAC__int64 i64;
+	FLAC__uint32 u32;
+	uint32_t u;
+
+	decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_FIXED;
+
+	subframe->residual = decoder->private_->residual[channel];
+	subframe->order = order;
+
+	/* read warm-up samples */
+	for(u = 0; u < order; u++) {
+		if(!FLAC__bitreader_read_raw_int64(decoder->private_->input, &i64, bps))
+			return false; /* read_callback_ sets the state for us */
+		subframe->warmup[u] = i64;
+	}
+
+	/* read entropy coding method info */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
+		return false; /* read_callback_ sets the state for us */
+	subframe->entropy_coding_method.type = (FLAC__EntropyCodingMethodType)u32;
+	switch(subframe->entropy_coding_method.type) {
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
+				return false; /* read_callback_ sets the state for us */
+			if((decoder->private_->frame.header.blocksize >> u32 < order) ||
+			   (decoder->private_->frame.header.blocksize % (1 << u32) > 0)) {
+				send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+				decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+				return true;
+			}
+			subframe->entropy_coding_method.data.partitioned_rice.order = u32;
+			subframe->entropy_coding_method.data.partitioned_rice.contents = &decoder->private_->partitioned_rice_contents[channel];
+			break;
+		default:
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+			return true;
+	}
+
+	/* read residual */
+	switch(subframe->entropy_coding_method.type) {
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
+			if(!read_residual_partitioned_rice_(decoder, order, subframe->entropy_coding_method.data.partitioned_rice.order, &decoder->private_->partitioned_rice_contents[channel], decoder->private_->residual[channel], /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2))
+				return false;
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+
+	/* decode the subframe */
+	if(do_full_decode) {
+		if(bps < 33){
+			for(uint32_t i = 0; i < order; i++)
+				decoder->private_->output[channel][i] = subframe->warmup[i];
+			if(bps+order <= 32)
+				FLAC__fixed_restore_signal(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, order, decoder->private_->output[channel]+order);
+			else
+				FLAC__fixed_restore_signal_wide(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, order, decoder->private_->output[channel]+order);
+		}
+		else {
+			decoder->private_->side_subframe_in_use = true;
+			memcpy(decoder->private_->side_subframe, subframe->warmup, sizeof(FLAC__int64) * order);
+			FLAC__fixed_restore_signal_wide_33bit(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, order, decoder->private_->side_subframe+order);
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool read_subframe_lpc_(FLAC__StreamDecoder *decoder, uint32_t channel, uint32_t bps, const uint32_t order, FLAC__bool do_full_decode)
+{
+	FLAC__Subframe_LPC *subframe = &decoder->private_->frame.subframes[channel].data.lpc;
+	FLAC__int32 i32;
+	FLAC__int64 i64;
+	FLAC__uint32 u32;
+	uint32_t u;
+
+	decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_LPC;
+
+	subframe->residual = decoder->private_->residual[channel];
+	subframe->order = order;
+
+	/* read warm-up samples */
+	for(u = 0; u < order; u++) {
+		if(!FLAC__bitreader_read_raw_int64(decoder->private_->input, &i64, bps))
+			return false; /* read_callback_ sets the state for us */
+		subframe->warmup[u] = i64;
+	}
+
+	/* read qlp coeff precision */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN))
+		return false; /* read_callback_ sets the state for us */
+	if(u32 == (1u << FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN) - 1) {
+		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+		return true;
+	}
+	subframe->qlp_coeff_precision = u32+1;
+
+	/* read qlp shift */
+	if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN))
+		return false; /* read_callback_ sets the state for us */
+	if(i32 < 0) {
+		send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+		decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+		return true;
+	}
+	subframe->quantization_level = i32;
+
+	/* read quantized lp coefficiencts */
+	for(u = 0; u < order; u++) {
+		if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i32, subframe->qlp_coeff_precision))
+			return false; /* read_callback_ sets the state for us */
+		subframe->qlp_coeff[u] = i32;
+	}
+
+	/* read entropy coding method info */
+	if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
+		return false; /* read_callback_ sets the state for us */
+	subframe->entropy_coding_method.type = (FLAC__EntropyCodingMethodType)u32;
+	switch(subframe->entropy_coding_method.type) {
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &u32, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
+				return false; /* read_callback_ sets the state for us */
+			if((decoder->private_->frame.header.blocksize >> u32 < order) ||
+			   (decoder->private_->frame.header.blocksize % (1 << u32) > 0)) {
+				send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+				decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+				return true;
+			}
+			subframe->entropy_coding_method.data.partitioned_rice.order = u32;
+			subframe->entropy_coding_method.data.partitioned_rice.contents = &decoder->private_->partitioned_rice_contents[channel];
+			break;
+		default:
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM);
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+			return true;
+	}
+
+	/* read residual */
+	switch(subframe->entropy_coding_method.type) {
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
+			if(!read_residual_partitioned_rice_(decoder, order, subframe->entropy_coding_method.data.partitioned_rice.order, &decoder->private_->partitioned_rice_contents[channel], decoder->private_->residual[channel], /*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2))
+				return false;
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+
+	/* decode the subframe */
+	if(do_full_decode) {
+		if(bps <= 32) {
+			for(uint32_t i = 0; i < order; i++)
+				decoder->private_->output[channel][i] = subframe->warmup[i];
+			if(FLAC__lpc_max_residual_bps(bps, subframe->qlp_coeff, order, subframe->quantization_level) <= 32 &&
+			   FLAC__lpc_max_prediction_before_shift_bps(bps, subframe->qlp_coeff, order) <= 32)
+				FLAC__lpc_restore_signal(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
+			else
+				FLAC__lpc_restore_signal_wide(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->output[channel]+order);
+		}
+		else {
+			decoder->private_->side_subframe_in_use = true;
+			memcpy(decoder->private_->side_subframe, subframe->warmup, sizeof(FLAC__int64) * order);
+			FLAC__lpc_restore_signal_wide_33bit(decoder->private_->residual[channel], decoder->private_->frame.header.blocksize-order, subframe->qlp_coeff, order, subframe->quantization_level, decoder->private_->side_subframe+order);
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool read_subframe_verbatim_(FLAC__StreamDecoder *decoder, uint32_t channel, uint32_t bps, FLAC__bool do_full_decode)
+{
+	FLAC__Subframe_Verbatim *subframe = &decoder->private_->frame.subframes[channel].data.verbatim;
+	uint32_t i;
+
+	decoder->private_->frame.subframes[channel].type = FLAC__SUBFRAME_TYPE_VERBATIM;
+
+	if(bps < 33) {
+		FLAC__int32 x, *residual = decoder->private_->residual[channel];
+
+		subframe->data_type = FLAC__VERBATIM_SUBFRAME_DATA_TYPE_INT32;
+		subframe->data.int32 = residual;
+
+		for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
+			if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &x, bps))
+				return false; /* read_callback_ sets the state for us */
+			residual[i] = x;
+		}
+
+		/* decode the subframe */
+		if(do_full_decode)
+			memcpy(decoder->private_->output[channel], subframe->data.int32, sizeof(FLAC__int32) * decoder->private_->frame.header.blocksize);
+	}
+	else {
+		FLAC__int64 x, *side = decoder->private_->side_subframe;
+
+		subframe->data_type = FLAC__VERBATIM_SUBFRAME_DATA_TYPE_INT64;
+		subframe->data.int64 = side;
+		decoder->private_->side_subframe_in_use = true;
+
+		for(i = 0; i < decoder->private_->frame.header.blocksize; i++) {
+			if(!FLAC__bitreader_read_raw_int64(decoder->private_->input, &x, bps))
+				return false; /* read_callback_ sets the state for us */
+			side[i] = x;
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool read_residual_partitioned_rice_(FLAC__StreamDecoder *decoder, uint32_t predictor_order, uint32_t partition_order, FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents, FLAC__int32 *residual, FLAC__bool is_extended)
+{
+	FLAC__uint32 rice_parameter;
+	int i;
+	uint32_t partition, sample, u;
+	const uint32_t partitions = 1u << partition_order;
+	const uint32_t partition_samples = decoder->private_->frame.header.blocksize >> partition_order;
+	const uint32_t plen = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN;
+	const uint32_t pesc = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
+
+	/* invalid predictor and partition orders mush be handled in the callers */
+	FLAC__ASSERT(partition_order > 0? partition_samples >= predictor_order : decoder->private_->frame.header.blocksize >= predictor_order);
+
+	if(!FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(partitioned_rice_contents, flac_max(6u, partition_order))) {
+		decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	sample = 0;
+	for(partition = 0; partition < partitions; partition++) {
+		if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &rice_parameter, plen))
+			return false; /* read_callback_ sets the state for us */
+		partitioned_rice_contents->parameters[partition] = rice_parameter;
+		if(rice_parameter < pesc) {
+			partitioned_rice_contents->raw_bits[partition] = 0;
+			u = (partition == 0) ? partition_samples - predictor_order : partition_samples;
+			if(!FLAC__bitreader_read_rice_signed_block(decoder->private_->input, residual + sample, u, rice_parameter)){
+				if(decoder->protected_->state == FLAC__STREAM_DECODER_READ_FRAME) {
+					/* no error was set, read_callback_ didn't set it, so
+					 * invalid rice symbol was found */
+					send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+					decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+					return true;
+				}
+				else
+					return false; /* read_callback_ sets the state for us */
+			}
+			sample += u;
+		}
+		else {
+			if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &rice_parameter, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
+				return false; /* read_callback_ sets the state for us */
+			partitioned_rice_contents->raw_bits[partition] = rice_parameter;
+			if(rice_parameter == 0) {
+				for(u = (partition == 0)? predictor_order : 0; u < partition_samples; u++, sample++)
+					residual[sample] = 0;
+			}
+			else{
+				for(u = (partition == 0)? predictor_order : 0; u < partition_samples; u++, sample++) {
+					if(!FLAC__bitreader_read_raw_int32(decoder->private_->input, &i, rice_parameter))
+						return false; /* read_callback_ sets the state for us */
+					residual[sample] = i;
+				}
+			}
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool read_zero_padding_(FLAC__StreamDecoder *decoder)
+{
+	if(!FLAC__bitreader_is_consumed_byte_aligned(decoder->private_->input)) {
+		FLAC__uint32 zero = 0;
+		if(!FLAC__bitreader_read_raw_uint32(decoder->private_->input, &zero, FLAC__bitreader_bits_left_for_byte_alignment(decoder->private_->input)))
+			return false; /* read_callback_ sets the state for us */
+#ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+		if(zero != 0) {
+			send_error_to_client_(decoder, FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC);
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
+		}
+#endif
+	}
+	return true;
+}
+
+FLAC__bool read_callback_(FLAC__byte buffer[], size_t *bytes, void *client_data)
+{
+	FLAC__StreamDecoder *decoder = (FLAC__StreamDecoder *)client_data;
+
+	if(
+#if FLAC__HAS_OGG
+		/* see [1] HACK NOTE below for why we don't call the eof_callback when decoding Ogg FLAC */
+		!decoder->private_->is_ogg &&
+#endif
+		decoder->private_->eof_callback && decoder->private_->eof_callback(decoder, decoder->private_->client_data)
+	) {
+		*bytes = 0;
+		decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
+		return false;
+	}
+	else if(*bytes > 0) {
+		/* While seeking, it is possible for our seek to land in the
+		 * middle of audio data that looks exactly like a frame header
+		 * from a future version of an encoder.  When that happens, our
+		 * error callback will get an
+		 * FLAC__STREAM_DECODER_UNPARSEABLE_STREAM and increment its
+		 * unparseable_frame_count.  But there is a remote possibility
+		 * that it is properly synced at such a "future-codec frame",
+		 * so to make sure, we wait to see many "unparseable" errors in
+		 * a row before bailing out.
+		 */
+		if(decoder->private_->is_seeking && decoder->private_->unparseable_frame_count > 20) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
+			return false;
+		}
+		else {
+			const FLAC__StreamDecoderReadStatus status =
+#if FLAC__HAS_OGG
+				decoder->private_->is_ogg?
+				read_callback_ogg_aspect_(decoder, buffer, bytes) :
+#endif
+				decoder->private_->read_callback(decoder, buffer, bytes, decoder->private_->client_data)
+			;
+			if(status == FLAC__STREAM_DECODER_READ_STATUS_ABORT) {
+				decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
+				return false;
+			}
+			else if(*bytes == 0) {
+				if(
+					status == FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM ||
+					(
+#if FLAC__HAS_OGG
+						/* see [1] HACK NOTE below for why we don't call the eof_callback when decoding Ogg FLAC */
+						!decoder->private_->is_ogg &&
+#endif
+						decoder->private_->eof_callback && decoder->private_->eof_callback(decoder, decoder->private_->client_data)
+					)
+				) {
+					decoder->protected_->state = FLAC__STREAM_DECODER_END_OF_STREAM;
+					return false;
+				}
+				else
+					return true;
+			}
+			else
+				return true;
+		}
+	}
+	else {
+		/* abort to avoid a deadlock */
+		decoder->protected_->state = FLAC__STREAM_DECODER_ABORTED;
+		return false;
+	}
+	/* [1] @@@ HACK NOTE: The end-of-stream checking has to be hacked around
+	 * for Ogg FLAC.  This is because the ogg decoder aspect can lose sync
+	 * and at the same time hit the end of the stream (for example, seeking
+	 * to a point that is after the beginning of the last Ogg page).  There
+	 * is no way to report an Ogg sync loss through the callbacks (see note
+	 * in read_callback_ogg_aspect_()) so it returns CONTINUE with *bytes==0.
+	 * So to keep the decoder from stopping at this point we gate the call
+	 * to the eof_callback and let the Ogg decoder aspect set the
+	 * end-of-stream state when it is needed.
+	 */
+}
+
+#ifdef FUZZING_BUILD_MODE_NO_SANITIZE_SIGNED_INTEGER_OVERFLOW
+/* The attribute below is to silence the undefined sanitizer of oss-fuzz.
+ * Because fuzzing feeds bogus predictors and residual samples to the
+ * decoder, having overflows in this section is unavoidable. Also,
+ * because the calculated values are audio path only, there is no
+ * potential for security problems */
+__attribute__((no_sanitize("signed-integer-overflow")))
+#endif
+void undo_channel_coding(FLAC__StreamDecoder *decoder) {
+	switch(decoder->private_->frame.header.channel_assignment) {
+	case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
+		/* do nothing */
+		break;
+	case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
+		FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
+		FLAC__ASSERT(decoder->private_->side_subframe_in_use != /* logical XOR */ (decoder->private_->frame.header.bits_per_sample < 32));
+		for(uint32_t i = 0; i < decoder->private_->frame.header.blocksize; i++)
+			if(decoder->private_->side_subframe_in_use)
+				decoder->private_->output[1][i] = decoder->private_->output[0][i] - decoder->private_->side_subframe[i];
+			else
+				decoder->private_->output[1][i] = decoder->private_->output[0][i] - decoder->private_->output[1][i];
+		break;
+	case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
+		FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
+		FLAC__ASSERT(decoder->private_->side_subframe_in_use != /* logical XOR */ (decoder->private_->frame.header.bits_per_sample < 32));
+		for(uint32_t i = 0; i < decoder->private_->frame.header.blocksize; i++)
+			if(decoder->private_->side_subframe_in_use)
+				decoder->private_->output[0][i] = decoder->private_->output[1][i] + decoder->private_->side_subframe[i];
+			else
+				decoder->private_->output[0][i] += decoder->private_->output[1][i];
+		break;
+	case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
+		FLAC__ASSERT(decoder->private_->frame.header.channels == 2);
+		FLAC__ASSERT(decoder->private_->side_subframe_in_use != /* logical XOR */ (decoder->private_->frame.header.bits_per_sample < 32));
+		for(uint32_t i = 0; i < decoder->private_->frame.header.blocksize; i++) {
+			if(!decoder->private_->side_subframe_in_use){
+				FLAC__int32 mid, side;
+				mid = decoder->private_->output[0][i];
+				side = decoder->private_->output[1][i];
+				mid = ((uint32_t) mid) << 1;
+				mid |= (side & 1); /* i.e. if 'side' is odd... */
+				decoder->private_->output[0][i] = (mid + side) >> 1;
+				decoder->private_->output[1][i] = (mid - side) >> 1;
+			}
+			else { /* bps == 32 */
+				FLAC__int64 mid;
+				mid = ((uint64_t)decoder->private_->output[0][i]) << 1;
+				mid |= (decoder->private_->side_subframe[i] & 1); /* i.e. if 'side' is odd... */
+				decoder->private_->output[0][i] = (mid + decoder->private_->side_subframe[i]) >> 1;
+				decoder->private_->output[1][i] = (mid - decoder->private_->side_subframe[i]) >> 1;
+			}
+		}
+		break;
+	default:
+		FLAC__ASSERT(0);
+		break;
+	}
+}
+
+#if FLAC__HAS_OGG
+FLAC__StreamDecoderReadStatus read_callback_ogg_aspect_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes)
+{
+	switch(FLAC__ogg_decoder_aspect_read_callback_wrapper(&decoder->protected_->ogg_decoder_aspect, buffer, bytes, read_callback_proxy_, decoder, decoder->private_->client_data)) {
+		case FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK:
+			return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
+		/* we don't really have a way to handle lost sync via read
+		 * callback so we'll let it pass and let the underlying
+		 * FLAC decoder catch the error
+		 */
+		case FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC:
+			return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
+		case FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM:
+			return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
+		case FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC:
+		case FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION:
+		case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT:
+		case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR:
+		case FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR:
+			return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
+		default:
+			FLAC__ASSERT(0);
+			/* double protection */
+			return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
+	}
+}
+
+FLAC__OggDecoderAspectReadStatus read_callback_proxy_(const void *void_decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
+{
+	FLAC__StreamDecoder *decoder = (FLAC__StreamDecoder*)void_decoder;
+
+	switch(decoder->private_->read_callback(decoder, buffer, bytes, client_data)) {
+		case FLAC__STREAM_DECODER_READ_STATUS_CONTINUE:
+			return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
+		case FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM:
+			return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM;
+		case FLAC__STREAM_DECODER_READ_STATUS_ABORT:
+			return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
+		default:
+			/* double protection: */
+			FLAC__ASSERT(0);
+			return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
+	}
+}
+#endif
+
+FLAC__StreamDecoderWriteStatus write_audio_frame_to_client_(FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[])
+{
+	decoder->private_->last_frame = *frame; /* save the frame */
+	decoder->private_->last_frame_is_set = true;
+	if(decoder->private_->is_seeking) {
+		FLAC__uint64 this_frame_sample = frame->header.number.sample_number;
+		FLAC__uint64 next_frame_sample = this_frame_sample + (FLAC__uint64)frame->header.blocksize;
+		FLAC__uint64 target_sample = decoder->private_->target_sample;
+
+		FLAC__ASSERT(frame->header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
+
+#if FLAC__HAS_OGG
+		decoder->private_->got_a_frame = true;
+#endif
+		if(this_frame_sample <= target_sample && target_sample < next_frame_sample) { /* we hit our target frame */
+			uint32_t delta = (uint32_t)(target_sample - this_frame_sample);
+			/* kick out of seek mode */
+			decoder->private_->is_seeking = false;
+			/* shift out the samples before target_sample */
+			if(delta > 0) {
+				uint32_t channel;
+				const FLAC__int32 *newbuffer[FLAC__MAX_CHANNELS];
+				for(channel = 0; channel < frame->header.channels; channel++)
+					newbuffer[channel] = buffer[channel] + delta;
+				decoder->private_->last_frame.header.blocksize -= delta;
+				decoder->private_->last_frame.header.number.sample_number += (FLAC__uint64)delta;
+				/* write the relevant samples */
+				return decoder->private_->write_callback(decoder, &decoder->private_->last_frame, newbuffer, decoder->private_->client_data);
+			}
+			else {
+				/* write the relevant samples */
+				return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data);
+			}
+		}
+		else {
+			return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
+		}
+	}
+	else {
+		/*
+		 * If we never got STREAMINFO, turn off MD5 checking to save
+		 * cycles since we don't have a sum to compare to anyway
+		 */
+		if(!decoder->private_->has_stream_info)
+			decoder->private_->do_md5_checking = false;
+		if(decoder->private_->do_md5_checking) {
+			if(!FLAC__MD5Accumulate(&decoder->private_->md5context, buffer, frame->header.channels, frame->header.blocksize, (frame->header.bits_per_sample+7) / 8))
+				return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+		}
+		return decoder->private_->write_callback(decoder, frame, buffer, decoder->private_->client_data);
+	}
+}
+
+void send_error_to_client_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status)
+{
+	if(!decoder->private_->is_seeking)
+		decoder->private_->error_callback(decoder, status, decoder->private_->client_data);
+	else if(status == FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM)
+		decoder->private_->unparseable_frame_count++;
+}
+
+FLAC__bool seek_to_absolute_sample_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
+{
+	FLAC__uint64 first_frame_offset = decoder->private_->first_frame_offset, lower_bound, upper_bound, lower_bound_sample, upper_bound_sample, this_frame_sample;
+	FLAC__int64 pos = -1;
+	int i;
+	uint32_t approx_bytes_per_frame;
+	FLAC__bool first_seek = true, seek_from_lower_bound = false;
+	const FLAC__uint64 total_samples = FLAC__stream_decoder_get_total_samples(decoder);
+	const uint32_t min_blocksize = decoder->private_->stream_info.data.stream_info.min_blocksize;
+	const uint32_t max_blocksize = decoder->private_->stream_info.data.stream_info.max_blocksize;
+	const uint32_t max_framesize = decoder->private_->stream_info.data.stream_info.max_framesize;
+	const uint32_t min_framesize = decoder->private_->stream_info.data.stream_info.min_framesize;
+	/* take these from the current frame in case they've changed mid-stream */
+	uint32_t channels = FLAC__stream_decoder_get_channels(decoder);
+	uint32_t bps = FLAC__stream_decoder_get_bits_per_sample(decoder);
+	const FLAC__StreamMetadata_SeekTable *seek_table = decoder->private_->has_seek_table? &decoder->private_->seek_table.data.seek_table : 0;
+
+	/* use values from stream info if we didn't decode a frame */
+	if(channels == 0)
+		channels = decoder->private_->stream_info.data.stream_info.channels;
+	if(bps == 0)
+		bps = decoder->private_->stream_info.data.stream_info.bits_per_sample;
+
+	/* we are just guessing here */
+	if(max_framesize > 0)
+		approx_bytes_per_frame = (max_framesize + min_framesize) / 2 + 1;
+	/*
+	 * Check if it's a known fixed-blocksize stream.  Note that though
+	 * the spec doesn't allow zeroes in the STREAMINFO block, we may
+	 * never get a STREAMINFO block when decoding so the value of
+	 * min_blocksize might be zero.
+	 */
+	else if(min_blocksize == max_blocksize && min_blocksize > 0) {
+		/* note there are no () around 'bps/8' to keep precision up since it's an integer calculation */
+		approx_bytes_per_frame = min_blocksize * channels * bps/8 + 64;
+	}
+	else
+		approx_bytes_per_frame = 4096 * channels * bps/8 + 64;
+
+	/*
+	 * First, we set an upper and lower bound on where in the
+	 * stream we will search.  For now we take the current position
+	 * as one bound and, depending on where the target position lies,
+	 * the beginning of the first frame or the end of the stream as
+	 * the other bound.
+	 */
+	lower_bound = first_frame_offset;
+	lower_bound_sample = 0;
+	upper_bound = stream_length;
+	upper_bound_sample = total_samples > 0 ? total_samples : target_sample /*estimate it*/;
+
+	if(decoder->protected_->state == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC &&
+	   decoder->private_->samples_decoded != 0) {
+		if(target_sample < decoder->private_->samples_decoded) {
+			if(FLAC__stream_decoder_get_decode_position(decoder, &upper_bound))
+				upper_bound_sample = decoder->private_->samples_decoded;
+		} else {
+			if(FLAC__stream_decoder_get_decode_position(decoder, &lower_bound))
+				lower_bound_sample = decoder->private_->samples_decoded;
+		}
+	}
+
+	/*
+	 * Now we refine the bounds if we have a seektable with
+	 * suitable points.  Note that according to the spec they
+	 * must be ordered by ascending sample number.
+	 *
+	 * Note: to protect against invalid seek tables we will ignore points
+	 * that have frame_samples==0 or sample_number>=total_samples. Also,
+	 * because math is limited to 64-bit ints, seekpoints with an offset
+	 * larger than 2^63 (8 exbibyte) are rejected.
+	 */
+	if(seek_table) {
+		FLAC__uint64 new_lower_bound = lower_bound;
+		FLAC__uint64 new_upper_bound = upper_bound;
+		FLAC__uint64 new_lower_bound_sample = lower_bound_sample;
+		FLAC__uint64 new_upper_bound_sample = upper_bound_sample;
+
+		/* find the closest seek point <= target_sample, if it exists */
+		for(i = (int)seek_table->num_points - 1; i >= 0; i--) {
+			if(
+				seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
+				seek_table->points[i].frame_samples > 0 && /* defense against bad seekpoints */
+				(total_samples <= 0 || seek_table->points[i].sample_number < total_samples) && /* defense against bad seekpoints */
+				seek_table->points[i].sample_number <= target_sample
+			)
+				break;
+		}
+		if(i >= 0) { /* i.e. we found a suitable seek point... */
+			new_lower_bound = first_frame_offset + seek_table->points[i].stream_offset;
+			new_lower_bound_sample = seek_table->points[i].sample_number;
+		}
+
+		/* find the closest seek point > target_sample, if it exists */
+		for(i = 0; i < (int)seek_table->num_points; i++) {
+			if(
+				seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
+				seek_table->points[i].frame_samples > 0 && /* defense against bad seekpoints */
+				(total_samples <= 0 || seek_table->points[i].sample_number < total_samples) && /* defense against bad seekpoints */
+				seek_table->points[i].sample_number > target_sample
+			)
+				break;
+		}
+		if(i < (int)seek_table->num_points) { /* i.e. we found a suitable seek point... */
+			new_upper_bound = first_frame_offset + seek_table->points[i].stream_offset;
+			new_upper_bound_sample = seek_table->points[i].sample_number;
+		}
+		/* final protection against unsorted seek tables; keep original values if bogus */
+		if(new_upper_bound >= new_lower_bound) {
+			lower_bound = new_lower_bound;
+			upper_bound = new_upper_bound;
+			lower_bound_sample = new_lower_bound_sample;
+			upper_bound_sample = new_upper_bound_sample;
+		}
+	}
+
+	FLAC__ASSERT(upper_bound_sample >= lower_bound_sample);
+	/* there are 2 insidious ways that the following equality occurs, which
+	 * we need to fix:
+	 *  1) total_samples is 0 (unknown) and target_sample is 0
+	 *  2) total_samples is 0 (unknown) and target_sample happens to be
+	 *     exactly equal to the last seek point in the seek table; this
+	 *     means there is no seek point above it, and upper_bound_samples
+	 *     remains equal to the estimate (of target_samples) we made above
+	 * in either case it does not hurt to move upper_bound_sample up by 1
+	 */
+	if(upper_bound_sample == lower_bound_sample)
+		upper_bound_sample++;
+
+	decoder->private_->target_sample = target_sample;
+	while(1) {
+		/* check whether decoder is still valid so bad state isn't overwritten
+		 * with seek error */
+		if(decoder->protected_->state == FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR ||
+		   decoder->protected_->state == FLAC__STREAM_DECODER_ABORTED)
+			return false;
+		/* check if the bounds are still ok */
+		if (lower_bound_sample >= upper_bound_sample ||
+		    lower_bound > upper_bound ||
+		    upper_bound >= INT64_MAX) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+			return false;
+		}
+		if(seek_from_lower_bound) {
+			pos = lower_bound;
+		}
+		else {
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+			pos = (FLAC__int64)lower_bound + (FLAC__int64)((double)(target_sample - lower_bound_sample) / (double)(upper_bound_sample - lower_bound_sample) * (double)(upper_bound - lower_bound)) - approx_bytes_per_frame;
+#else
+			/* a little less accurate: */
+			if(upper_bound - lower_bound < 0xffffffff)
+				pos = (FLAC__int64)lower_bound + (FLAC__int64)(((target_sample - lower_bound_sample) * (upper_bound - lower_bound)) / (upper_bound_sample - lower_bound_sample)) - approx_bytes_per_frame;
+			else { /* @@@ WATCHOUT, ~2TB limit */
+			        FLAC__uint64 ratio = (1<<16) / (upper_bound_sample - lower_bound_sample);
+				pos = (FLAC__int64)lower_bound + (FLAC__int64)((((target_sample - lower_bound_sample)>>8) * ((upper_bound - lower_bound)>>8) * ratio)) - approx_bytes_per_frame;
+			}
+#endif
+		}
+		if(pos >= (FLAC__int64)upper_bound)
+			pos = (FLAC__int64)upper_bound - 1;
+		if(pos < (FLAC__int64)lower_bound)
+			pos = (FLAC__int64)lower_bound;
+		if(decoder->private_->seek_callback(decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__STREAM_DECODER_SEEK_STATUS_OK) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+			return false;
+		}
+		if(!FLAC__stream_decoder_flush(decoder)) {
+			/* above call sets the state for us */
+			return false;
+		}
+		/* Now we need to get a frame.  First we need to reset our
+		 * unparseable_frame_count; if we get too many unparseable
+		 * frames in a row, the read callback will return
+		 * FLAC__STREAM_DECODER_READ_STATUS_ABORT, causing
+		 * FLAC__stream_decoder_process_single() to return false.
+		 */
+		decoder->private_->unparseable_frame_count = 0;
+		if(!FLAC__stream_decoder_process_single(decoder) || decoder->protected_->state == FLAC__STREAM_DECODER_ABORTED || 0 == decoder->private_->samples_decoded) {
+			/* No frame could be decoded */
+			if(decoder->protected_->state != FLAC__STREAM_DECODER_ABORTED && decoder->private_->eof_callback(decoder, decoder->private_->client_data) && !seek_from_lower_bound){
+				/* decoder has hit end of stream while processing corrupt
+				 * frame. To remedy this, try decoding a frame at the lower
+				 * bound so the seek after that hopefully ends up somewhere
+				 * else */
+				seek_from_lower_bound = true;
+				continue;
+			}
+			else {
+				decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+				return false;
+			}
+		}
+		seek_from_lower_bound = false;
+
+		/* our write callback will change the state when it gets to the target frame */
+		/* actually, we could have got_a_frame if our decoder is at FLAC__STREAM_DECODER_END_OF_STREAM so we need to check for that also */
+		if(!decoder->private_->is_seeking)
+			break;
+
+		FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
+		this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
+
+		if(this_frame_sample + decoder->private_->last_frame.header.blocksize >= upper_bound_sample && !first_seek) {
+			if (pos == (FLAC__int64)lower_bound) {
+				/* can't move back any more than the first frame, something is fatally wrong */
+				decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+				return false;
+			}
+			/* our last move backwards wasn't big enough, try again */
+			approx_bytes_per_frame = approx_bytes_per_frame? approx_bytes_per_frame * 2 : 16;
+			continue;
+		}
+		/* allow one seek over upper bound, so we can get a correct upper_bound_sample for streams with unknown total_samples */
+		first_seek = false;
+
+		/* make sure we are not seeking in corrupted stream */
+		if (this_frame_sample < lower_bound_sample) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+			return false;
+		}
+
+		/* we need to narrow the search */
+		if(target_sample < this_frame_sample) {
+			upper_bound_sample = this_frame_sample + decoder->private_->last_frame.header.blocksize;
+/*@@@@@@ what will decode position be if at end of stream? */
+			if(!FLAC__stream_decoder_get_decode_position(decoder, &upper_bound)) {
+				decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+				return false;
+			}
+			approx_bytes_per_frame = (uint32_t)(2 * (upper_bound - pos) / 3 + 16);
+		}
+		else { /* target_sample >= this_frame_sample + this frame's blocksize */
+			lower_bound_sample = this_frame_sample + decoder->private_->last_frame.header.blocksize;
+			if(!FLAC__stream_decoder_get_decode_position(decoder, &lower_bound)) {
+				decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+				return false;
+			}
+			approx_bytes_per_frame = (uint32_t)(2 * (lower_bound - pos) / 3 + 16);
+		}
+	}
+
+	return true;
+}
+
+#if FLAC__HAS_OGG
+FLAC__bool seek_to_absolute_sample_ogg_(FLAC__StreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
+{
+	FLAC__uint64 left_pos = 0, right_pos = stream_length;
+	FLAC__uint64 left_sample = 0, right_sample = FLAC__stream_decoder_get_total_samples(decoder);
+	FLAC__uint64 this_frame_sample = (FLAC__uint64)0 - 1;
+	FLAC__uint64 pos = 0; /* only initialized to avoid compiler warning */
+	FLAC__bool did_a_seek;
+	uint32_t iteration = 0;
+
+	/* In the first iterations, we will calculate the target byte position
+	 * by the distance from the target sample to left_sample and
+	 * right_sample (let's call it "proportional search").  After that, we
+	 * will switch to binary search.
+	 */
+	uint32_t BINARY_SEARCH_AFTER_ITERATION = 2;
+
+	/* We will switch to a linear search once our current sample is less
+	 * than this number of samples ahead of the target sample
+	 */
+	static const FLAC__uint64 LINEAR_SEARCH_WITHIN_SAMPLES = FLAC__MAX_BLOCK_SIZE * 2;
+
+	/* If the total number of samples is unknown, use a large value, and
+	 * force binary search immediately.
+	 */
+	if(right_sample == 0) {
+		right_sample = (FLAC__uint64)(-1);
+		BINARY_SEARCH_AFTER_ITERATION = 0;
+	}
+
+	decoder->private_->target_sample = target_sample;
+	for( ; ; iteration++) {
+		/* Do sanity checks on bounds */
+		if(right_pos <= left_pos || right_pos - left_pos < 9) {
+			/* FLAC frame is at least 9 byte in size */
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+			return false;
+		}
+		if (iteration == 0 || this_frame_sample > target_sample || target_sample - this_frame_sample > LINEAR_SEARCH_WITHIN_SAMPLES) {
+			if (iteration >= BINARY_SEARCH_AFTER_ITERATION) {
+				pos = (right_pos + left_pos) / 2;
+			}
+			else {
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+				pos = (FLAC__uint64)((double)(target_sample - left_sample) / (double)(right_sample - left_sample) * (double)(right_pos - left_pos));
+#else
+				/* a little less accurate: */
+				if ((target_sample-left_sample <= 0xffffffff) && (right_pos-left_pos <= 0xffffffff))
+					pos = (FLAC__int64)(((target_sample-left_sample) * (right_pos-left_pos)) / (right_sample-left_sample));
+				else /* @@@ WATCHOUT, ~2TB limit */
+					pos = (FLAC__int64)((((target_sample-left_sample)>>8) * ((right_pos-left_pos)>>8)) / ((right_sample-left_sample)>>16));
+#endif
+				/* @@@ TODO: might want to limit pos to some distance
+				 * before EOF, to make sure we land before the last frame,
+				 * thereby getting a this_frame_sample and so having a better
+				 * estimate.
+				 */
+			}
+
+			/* physical seek */
+			if(decoder->private_->seek_callback((FLAC__StreamDecoder*)decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__STREAM_DECODER_SEEK_STATUS_OK) {
+				decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+				return false;
+			}
+			if(!FLAC__stream_decoder_flush(decoder)) {
+				/* above call sets the state for us */
+				return false;
+			}
+			did_a_seek = true;
+		}
+		else
+			did_a_seek = false;
+
+		decoder->private_->got_a_frame = false;
+		if(!FLAC__stream_decoder_process_single(decoder) ||
+		   decoder->protected_->state == FLAC__STREAM_DECODER_ABORTED) {
+			decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+			return false;
+		}
+		if(!decoder->private_->got_a_frame) {
+			if(did_a_seek) {
+				/* this can happen if we seek to a point after the last frame; we drop
+				 * to binary search right away in this case to avoid any wasted
+				 * iterations of proportional search.
+				 */
+				right_pos = pos;
+				BINARY_SEARCH_AFTER_ITERATION = 0;
+			}
+			else {
+				/* this can probably only happen if total_samples is unknown and the
+				 * target_sample is past the end of the stream
+				 */
+				decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+				return false;
+			}
+		}
+		/* our write callback will change the state when it gets to the target frame */
+		else if(!decoder->private_->is_seeking) {
+			break;
+		}
+		else {
+			this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
+			FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
+
+			if (did_a_seek) {
+				if (this_frame_sample <= target_sample) {
+					/* The 'equal' case should not happen, since
+					 * FLAC__stream_decoder_process_single()
+					 * should recognize that it has hit the
+					 * target sample and we would exit through
+					 * the 'break' above.
+					 */
+					FLAC__ASSERT(this_frame_sample != target_sample);
+
+					left_sample = this_frame_sample;
+					/* sanity check to avoid infinite loop */
+					if (left_pos == pos) {
+						decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+						return false;
+					}
+					left_pos = pos;
+				}
+				else {
+					right_sample = this_frame_sample;
+					/* sanity check to avoid infinite loop */
+					if (right_pos == pos) {
+						decoder->protected_->state = FLAC__STREAM_DECODER_SEEK_ERROR;
+						return false;
+					}
+					right_pos = pos;
+				}
+			}
+		}
+	}
+
+	return true;
+}
+#endif
+
+FLAC__StreamDecoderReadStatus file_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
+{
+	(void)client_data;
+
+	if(*bytes > 0) {
+		*bytes = fread(buffer, sizeof(FLAC__byte), *bytes, decoder->private_->file);
+		if(ferror(decoder->private_->file))
+			return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
+		else if(*bytes == 0)
+			return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
+		else
+			return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
+	}
+	else
+		return FLAC__STREAM_DECODER_READ_STATUS_ABORT; /* abort to avoid a deadlock */
+}
+
+FLAC__StreamDecoderSeekStatus file_seek_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
+{
+	(void)client_data;
+
+	if(decoder->private_->file == stdin)
+		return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
+	else if(fseeko(decoder->private_->file, (FLAC__off_t)absolute_byte_offset, SEEK_SET) < 0)
+		return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
+	else
+		return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
+}
+
+FLAC__StreamDecoderTellStatus file_tell_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
+{
+	FLAC__off_t pos;
+	(void)client_data;
+
+	if(decoder->private_->file == stdin)
+		return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
+	else if((pos = ftello(decoder->private_->file)) < 0)
+		return FLAC__STREAM_DECODER_TELL_STATUS_ERROR;
+	else {
+		*absolute_byte_offset = (FLAC__uint64)pos;
+		return FLAC__STREAM_DECODER_TELL_STATUS_OK;
+	}
+}
+
+FLAC__StreamDecoderLengthStatus file_length_callback_(const FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
+{
+	struct flac_stat_s filestats;
+	(void)client_data;
+
+	if(decoder->private_->file == stdin)
+		return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
+
+#ifndef FLAC__USE_FILELENGTHI64
+	if(flac_fstat(fileno(decoder->private_->file), &filestats) != 0)
+#else
+	filestats.st_size = _filelengthi64(fileno(decoder->private_->file));
+	if(filestats.st_size < 0)
+#endif
+		return FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR;
+	else {
+		*stream_length = (FLAC__uint64)filestats.st_size;
+		return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
+	}
+}
+
+FLAC__bool file_eof_callback_(const FLAC__StreamDecoder *decoder, void *client_data)
+{
+	(void)client_data;
+
+	return feof(decoder->private_->file)? true : false;
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder.c
new file mode 100644
index 00000000..2879c51c
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder.c
@@ -0,0 +1,4815 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h> /* for malloc() */
+#include <string.h> /* for memcpy() */
+#include <sys/types.h> /* for off_t */
+#ifdef _WIN32
+#include <windows.h> /* for GetFileType() */
+#include <io.h> /* for _get_osfhandle() */
+#endif
+#include "share/compat.h"
+#include "FLAC/assert.h"
+#include "FLAC/stream_decoder.h"
+#include "protected/stream_encoder.h"
+#include "private/bitwriter.h"
+#include "private/bitmath.h"
+#include "private/crc.h"
+#include "private/cpu.h"
+#include "private/fixed.h"
+#include "private/format.h"
+#include "private/lpc.h"
+#include "private/md5.h"
+#include "private/memory.h"
+#include "private/macros.h"
+#if FLAC__HAS_OGG
+#include "private/ogg_helper.h"
+#include "private/ogg_mapping.h"
+#endif
+#include "private/stream_encoder.h"
+#include "private/stream_encoder_framing.h"
+#include "private/window.h"
+#include "share/alloc.h"
+#include "share/private.h"
+
+
+/* Exact Rice codeword length calculation is off by default.  The simple
+ * (and fast) estimation (of how many bits a residual value will be
+ * encoded with) in this encoder is very good, almost always yielding
+ * compression within 0.1% of exact calculation.
+ */
+#undef EXACT_RICE_BITS_CALCULATION
+/* Rice parameter searching is off by default.  The simple (and fast)
+ * parameter estimation in this encoder is very good, almost always
+ * yielding compression within 0.1% of the optimal parameters.
+ */
+#undef ENABLE_RICE_PARAMETER_SEARCH
+
+
+typedef struct {
+	FLAC__int32 *data[FLAC__MAX_CHANNELS];
+	uint32_t size; /* of each data[] in samples */
+	uint32_t tail;
+} verify_input_fifo;
+
+typedef struct {
+	const FLAC__byte *data;
+	uint32_t capacity;
+	uint32_t bytes;
+} verify_output;
+
+typedef enum {
+	ENCODER_IN_MAGIC = 0,
+	ENCODER_IN_METADATA = 1,
+	ENCODER_IN_AUDIO = 2
+} EncoderStateHint;
+
+static const  struct CompressionLevels {
+	FLAC__bool do_mid_side_stereo;
+	FLAC__bool loose_mid_side_stereo;
+	uint32_t max_lpc_order;
+	uint32_t qlp_coeff_precision;
+	FLAC__bool do_qlp_coeff_prec_search;
+	FLAC__bool do_escape_coding;
+	FLAC__bool do_exhaustive_model_search;
+	uint32_t min_residual_partition_order;
+	uint32_t max_residual_partition_order;
+	uint32_t rice_parameter_search_dist;
+	const char *apodization;
+} compression_levels_[] = {
+	{ false, false,  0, 0, false, false, false, 0, 3, 0, "tukey(5e-1)" },
+	{ true , true ,  0, 0, false, false, false, 0, 3, 0, "tukey(5e-1)" },
+	{ true , false,  0, 0, false, false, false, 0, 3, 0, "tukey(5e-1)" },
+	{ false, false,  6, 0, false, false, false, 0, 4, 0, "tukey(5e-1)" },
+	{ true , true ,  8, 0, false, false, false, 0, 4, 0, "tukey(5e-1)" },
+	{ true , false,  8, 0, false, false, false, 0, 5, 0, "tukey(5e-1)" },
+	{ true , false,  8, 0, false, false, false, 0, 6, 0, "subdivide_tukey(2)" },
+	{ true , false, 12, 0, false, false, false, 0, 6, 0, "subdivide_tukey(2)" },
+	{ true , false, 12, 0, false, false, false, 0, 6, 0, "subdivide_tukey(3)" }
+	/* here we use locale-independent 5e-1 instead of 0.5 or 0,5 */
+};
+
+
+/***********************************************************************
+ *
+ * Private class method prototypes
+ *
+ ***********************************************************************/
+
+static void set_defaults_(FLAC__StreamEncoder *encoder);
+static void free_(FLAC__StreamEncoder *encoder);
+static FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, uint32_t new_blocksize);
+static FLAC__bool write_bitbuffer_(FLAC__StreamEncoder *encoder, uint32_t samples, FLAC__bool is_last_block);
+static FLAC__StreamEncoderWriteStatus write_frame_(FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, uint32_t samples, FLAC__bool is_last_block);
+static void update_metadata_(const FLAC__StreamEncoder *encoder);
+#if FLAC__HAS_OGG
+static void update_ogg_metadata_(FLAC__StreamEncoder *encoder);
+#endif
+static FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_block);
+static FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder);
+
+static FLAC__bool process_subframe_(
+	FLAC__StreamEncoder *encoder,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order,
+	const FLAC__FrameHeader *frame_header,
+	uint32_t subframe_bps,
+	const void *integer_signal,
+	FLAC__Subframe *subframe[2],
+	FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents[2],
+	FLAC__int32 *residual[2],
+	uint32_t *best_subframe,
+	uint32_t *best_bits
+);
+
+static FLAC__bool add_subframe_(
+	FLAC__StreamEncoder *encoder,
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	const FLAC__Subframe *subframe,
+	FLAC__BitWriter *frame
+);
+
+static uint32_t evaluate_constant_subframe_(
+	FLAC__StreamEncoder *encoder,
+	const FLAC__int64 signal,
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	FLAC__Subframe *subframe
+);
+
+static uint32_t evaluate_fixed_subframe_(
+	FLAC__StreamEncoder *encoder,
+	const void *signal,
+	FLAC__int32 residual[],
+	FLAC__uint64 abs_residual_partition_sums[],
+	uint32_t raw_bits_per_partition[],
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	uint32_t order,
+	uint32_t rice_parameter_limit,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order,
+	FLAC__bool do_escape_coding,
+	uint32_t rice_parameter_search_dist,
+	FLAC__Subframe *subframe,
+	FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
+);
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+static uint32_t evaluate_lpc_subframe_(
+	FLAC__StreamEncoder *encoder,
+	const void *signal,
+	FLAC__int32 residual[],
+	FLAC__uint64 abs_residual_partition_sums[],
+	uint32_t raw_bits_per_partition[],
+	const FLAC__real lp_coeff[],
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	uint32_t order,
+	uint32_t qlp_coeff_precision,
+	uint32_t rice_parameter_limit,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order,
+	FLAC__bool do_escape_coding,
+	uint32_t rice_parameter_search_dist,
+	FLAC__Subframe *subframe,
+	FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
+);
+#endif
+
+static uint32_t evaluate_verbatim_subframe_(
+	FLAC__StreamEncoder *encoder,
+	const void *signal,
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	FLAC__Subframe *subframe
+);
+
+static uint32_t find_best_partition_order_(
+	struct FLAC__StreamEncoderPrivate *private_,
+	const FLAC__int32 residual[],
+	FLAC__uint64 abs_residual_partition_sums[],
+	uint32_t raw_bits_per_partition[],
+	uint32_t residual_samples,
+	uint32_t predictor_order,
+	uint32_t rice_parameter_limit,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order,
+	uint32_t bps,
+	FLAC__bool do_escape_coding,
+	uint32_t rice_parameter_search_dist,
+	FLAC__EntropyCodingMethod *best_ecm
+);
+
+static void precompute_partition_info_sums_(
+	const FLAC__int32 residual[],
+	FLAC__uint64 abs_residual_partition_sums[],
+	uint32_t residual_samples,
+	uint32_t predictor_order,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order,
+	uint32_t bps
+);
+
+static void precompute_partition_info_escapes_(
+	const FLAC__int32 residual[],
+	uint32_t raw_bits_per_partition[],
+	uint32_t residual_samples,
+	uint32_t predictor_order,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order
+);
+
+static FLAC__bool set_partitioned_rice_(
+#ifdef EXACT_RICE_BITS_CALCULATION
+	const FLAC__int32 residual[],
+#endif
+	const FLAC__uint64 abs_residual_partition_sums[],
+	const uint32_t raw_bits_per_partition[],
+	const uint32_t residual_samples,
+	const uint32_t predictor_order,
+	const uint32_t rice_parameter_limit,
+	const uint32_t rice_parameter_search_dist,
+	const uint32_t partition_order,
+	const FLAC__bool search_for_escapes,
+	FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents,
+	uint32_t *bits
+);
+
+static uint32_t get_wasted_bits_(FLAC__int32 signal[], uint32_t samples);
+static uint32_t get_wasted_bits_wide_(FLAC__int64 signal_wide[], FLAC__int32 signal[], uint32_t samples);
+
+/* verify-related routines: */
+static void append_to_verify_fifo_(
+	verify_input_fifo *fifo,
+	const FLAC__int32 * const input[],
+	uint32_t input_offset,
+	uint32_t channels,
+	uint32_t wide_samples
+);
+
+static void append_to_verify_fifo_interleaved_(
+	verify_input_fifo *fifo,
+	const FLAC__int32 input[],
+	uint32_t input_offset,
+	uint32_t channels,
+	uint32_t wide_samples
+);
+
+static FLAC__StreamDecoderReadStatus verify_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
+static FLAC__StreamDecoderWriteStatus verify_write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
+static void verify_metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
+static void verify_error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
+
+static FLAC__StreamEncoderReadStatus file_read_callback_(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
+static FLAC__StreamEncoderSeekStatus file_seek_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data);
+static FLAC__StreamEncoderTellStatus file_tell_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
+static FLAC__StreamEncoderWriteStatus file_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame, void *client_data);
+static FILE *get_binary_stdout_(void);
+
+
+/***********************************************************************
+ *
+ * Private class data
+ *
+ ***********************************************************************/
+
+typedef struct FLAC__StreamEncoderPrivate {
+	uint32_t input_capacity;                          /* current size (in samples) of the signal and residual buffers */
+	FLAC__int32 *integer_signal[FLAC__MAX_CHANNELS];  /* the integer version of the input signal */
+	FLAC__int32 *integer_signal_mid_side[2];          /* the integer version of the mid-side input signal (stereo only) */
+	FLAC__int64 *integer_signal_33bit_side;           /* 33-bit side for 32-bit stereo decorrelation */
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	FLAC__real *real_signal[FLAC__MAX_CHANNELS];      /* (@@@ currently unused) the floating-point version of the input signal */
+	FLAC__real *real_signal_mid_side[2];              /* (@@@ currently unused) the floating-point version of the mid-side input signal (stereo only) */
+	FLAC__real *window[FLAC__MAX_APODIZATION_FUNCTIONS]; /* the pre-computed floating-point window for each apodization function */
+	FLAC__real *windowed_signal;                      /* the integer_signal[] * current window[] */
+#endif
+	uint32_t subframe_bps[FLAC__MAX_CHANNELS];        /* the effective bits per sample of the input signal (stream bps - wasted bits) */
+	uint32_t subframe_bps_mid_side[2];                /* the effective bits per sample of the mid-side input signal (stream bps - wasted bits + 0/1) */
+	FLAC__int32 *residual_workspace[FLAC__MAX_CHANNELS][2]; /* each channel has a candidate and best workspace where the subframe residual signals will be stored */
+	FLAC__int32 *residual_workspace_mid_side[2][2];
+	FLAC__Subframe subframe_workspace[FLAC__MAX_CHANNELS][2];
+	FLAC__Subframe subframe_workspace_mid_side[2][2];
+	FLAC__Subframe *subframe_workspace_ptr[FLAC__MAX_CHANNELS][2];
+	FLAC__Subframe *subframe_workspace_ptr_mid_side[2][2];
+	FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_workspace[FLAC__MAX_CHANNELS][2];
+	FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_workspace_mid_side[FLAC__MAX_CHANNELS][2];
+	FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents_workspace_ptr[FLAC__MAX_CHANNELS][2];
+	FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents_workspace_ptr_mid_side[FLAC__MAX_CHANNELS][2];
+	uint32_t best_subframe[FLAC__MAX_CHANNELS];       /* index (0 or 1) into 2nd dimension of the above workspaces */
+	uint32_t best_subframe_mid_side[2];
+	uint32_t best_subframe_bits[FLAC__MAX_CHANNELS];  /* size in bits of the best subframe for each channel */
+	uint32_t best_subframe_bits_mid_side[2];
+	FLAC__uint64 *abs_residual_partition_sums;        /* workspace where the sum of abs(candidate residual) for each partition is stored */
+	uint32_t *raw_bits_per_partition;                 /* workspace where the sum of silog2(candidate residual) for each partition is stored */
+	FLAC__BitWriter *frame;                           /* the current frame being worked on */
+	uint32_t loose_mid_side_stereo_frames;            /* rounded number of frames the encoder will use before trying both independent and mid/side frames again */
+	uint32_t loose_mid_side_stereo_frame_count;       /* number of frames using the current channel assignment */
+	FLAC__ChannelAssignment last_channel_assignment;
+	FLAC__StreamMetadata streaminfo;                  /* scratchpad for STREAMINFO as it is built */
+	FLAC__StreamMetadata_SeekTable *seek_table;       /* pointer into encoder->protected_->metadata_ where the seek table is */
+	uint32_t current_sample_number;
+	uint32_t current_frame_number;
+	FLAC__MD5Context md5context;
+	FLAC__CPUInfo cpuinfo;
+	void (*local_precompute_partition_info_sums)(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[], uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps);
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	uint32_t (*local_fixed_compute_best_predictor)(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+	uint32_t (*local_fixed_compute_best_predictor_wide)(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+#else
+	uint32_t (*local_fixed_compute_best_predictor)(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+	uint32_t (*local_fixed_compute_best_predictor_wide)(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+#endif
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	void (*local_lpc_compute_autocorrelation)(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+	void (*local_lpc_compute_residual_from_qlp_coefficients)(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+	void (*local_lpc_compute_residual_from_qlp_coefficients_64bit)(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+	void (*local_lpc_compute_residual_from_qlp_coefficients_16bit)(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#endif
+	FLAC__bool disable_mmx;
+	FLAC__bool disable_sse2;
+	FLAC__bool disable_ssse3;
+	FLAC__bool disable_sse41;
+	FLAC__bool disable_avx2;
+	FLAC__bool disable_fma;
+	FLAC__bool disable_constant_subframes;
+	FLAC__bool disable_fixed_subframes;
+	FLAC__bool disable_verbatim_subframes;
+	FLAC__bool is_ogg;
+	FLAC__StreamEncoderReadCallback read_callback; /* currently only needed for Ogg FLAC */
+	FLAC__StreamEncoderSeekCallback seek_callback;
+	FLAC__StreamEncoderTellCallback tell_callback;
+	FLAC__StreamEncoderWriteCallback write_callback;
+	FLAC__StreamEncoderMetadataCallback metadata_callback;
+	FLAC__StreamEncoderProgressCallback progress_callback;
+	void *client_data;
+	uint32_t first_seekpoint_to_check;
+	FILE *file;                            /* only used when encoding to a file */
+	FLAC__uint64 bytes_written;
+	FLAC__uint64 samples_written;
+	uint32_t frames_written;
+	uint32_t total_frames_estimate;
+	/* unaligned (original) pointers to allocated data */
+	FLAC__int32 *integer_signal_unaligned[FLAC__MAX_CHANNELS];
+	FLAC__int32 *integer_signal_mid_side_unaligned[2];
+	FLAC__int64 *integer_signal_33bit_side_unaligned;
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	FLAC__real *real_signal_unaligned[FLAC__MAX_CHANNELS]; /* (@@@ currently unused) */
+	FLAC__real *real_signal_mid_side_unaligned[2]; /* (@@@ currently unused) */
+	FLAC__real *window_unaligned[FLAC__MAX_APODIZATION_FUNCTIONS];
+	FLAC__real *windowed_signal_unaligned;
+#endif
+	FLAC__int32 *residual_workspace_unaligned[FLAC__MAX_CHANNELS][2];
+	FLAC__int32 *residual_workspace_mid_side_unaligned[2][2];
+	FLAC__uint64 *abs_residual_partition_sums_unaligned;
+	uint32_t *raw_bits_per_partition_unaligned;
+	/*
+	 * These fields have been moved here from private function local
+	 * declarations merely to save stack space during encoding.
+	 */
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	FLAC__real lp_coeff[FLAC__MAX_LPC_ORDER][FLAC__MAX_LPC_ORDER]; /* from process_subframe_() */
+#endif
+	FLAC__EntropyCodingMethod_PartitionedRiceContents partitioned_rice_contents_extra[2]; /* from find_best_partition_order_() */
+	/*
+	 * The data for the verify section
+	 */
+	struct {
+		FLAC__StreamDecoder *decoder;
+		EncoderStateHint state_hint;
+		FLAC__bool needs_magic_hack;
+		verify_input_fifo input_fifo;
+		verify_output output;
+		struct {
+			FLAC__uint64 absolute_sample;
+			uint32_t frame_number;
+			uint32_t channel;
+			uint32_t sample;
+			FLAC__int32 expected;
+			FLAC__int32 got;
+		} error_stats;
+	} verify;
+	FLAC__bool is_being_deleted; /* if true, call to ..._finish() from ..._delete() will not call the callbacks */
+} FLAC__StreamEncoderPrivate;
+
+/***********************************************************************
+ *
+ * Public static class data
+ *
+ ***********************************************************************/
+
+FLAC_API const char * const FLAC__StreamEncoderStateString[] = {
+	"FLAC__STREAM_ENCODER_OK",
+	"FLAC__STREAM_ENCODER_UNINITIALIZED",
+	"FLAC__STREAM_ENCODER_OGG_ERROR",
+	"FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR",
+	"FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA",
+	"FLAC__STREAM_ENCODER_CLIENT_ERROR",
+	"FLAC__STREAM_ENCODER_IO_ERROR",
+	"FLAC__STREAM_ENCODER_FRAMING_ERROR",
+	"FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR"
+};
+
+FLAC_API const char * const FLAC__StreamEncoderInitStatusString[] = {
+	"FLAC__STREAM_ENCODER_INIT_STATUS_OK",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA",
+	"FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED"
+};
+
+FLAC_API const char * const FLAC__StreamEncoderReadStatusString[] = {
+	"FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE",
+	"FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM",
+	"FLAC__STREAM_ENCODER_READ_STATUS_ABORT",
+	"FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED"
+};
+
+FLAC_API const char * const FLAC__StreamEncoderWriteStatusString[] = {
+	"FLAC__STREAM_ENCODER_WRITE_STATUS_OK",
+	"FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR"
+};
+
+FLAC_API const char * const FLAC__StreamEncoderSeekStatusString[] = {
+	"FLAC__STREAM_ENCODER_SEEK_STATUS_OK",
+	"FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR",
+	"FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED"
+};
+
+FLAC_API const char * const FLAC__StreamEncoderTellStatusString[] = {
+	"FLAC__STREAM_ENCODER_TELL_STATUS_OK",
+	"FLAC__STREAM_ENCODER_TELL_STATUS_ERROR",
+	"FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED"
+};
+
+/* Number of samples that will be overread to watch for end of stream.  By
+ * 'overread', we mean that the FLAC__stream_encoder_process*() calls will
+ * always try to read blocksize+1 samples before encoding a block, so that
+ * even if the stream has a total sample count that is an integral multiple
+ * of the blocksize, we will still notice when we are encoding the last
+ * block.  This is needed, for example, to correctly set the end-of-stream
+ * marker in Ogg FLAC.
+ *
+ * WATCHOUT: some parts of the code assert that OVERREAD_ == 1 and there's
+ * not really any reason to change it.
+ */
+static const uint32_t OVERREAD_ = 1;
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ */
+FLAC_API FLAC__StreamEncoder *FLAC__stream_encoder_new(void)
+{
+	FLAC__StreamEncoder *encoder;
+	uint32_t i;
+
+	FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
+
+	encoder = calloc(1, sizeof(FLAC__StreamEncoder));
+	if(encoder == 0) {
+		return 0;
+	}
+
+	encoder->protected_ = calloc(1, sizeof(FLAC__StreamEncoderProtected));
+	if(encoder->protected_ == 0) {
+		free(encoder);
+		return 0;
+	}
+
+	encoder->private_ = calloc(1, sizeof(FLAC__StreamEncoderPrivate));
+	if(encoder->private_ == 0) {
+		free(encoder->protected_);
+		free(encoder);
+		return 0;
+	}
+
+	encoder->private_->frame = FLAC__bitwriter_new();
+	if(encoder->private_->frame == 0) {
+		free(encoder->private_);
+		free(encoder->protected_);
+		free(encoder);
+		return 0;
+	}
+
+	encoder->private_->file = 0;
+
+	encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
+
+	set_defaults_(encoder);
+
+	encoder->private_->is_being_deleted = false;
+
+	for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
+		encoder->private_->subframe_workspace_ptr[i][0] = &encoder->private_->subframe_workspace[i][0];
+		encoder->private_->subframe_workspace_ptr[i][1] = &encoder->private_->subframe_workspace[i][1];
+	}
+	for(i = 0; i < 2; i++) {
+		encoder->private_->subframe_workspace_ptr_mid_side[i][0] = &encoder->private_->subframe_workspace_mid_side[i][0];
+		encoder->private_->subframe_workspace_ptr_mid_side[i][1] = &encoder->private_->subframe_workspace_mid_side[i][1];
+	}
+	for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
+		encoder->private_->partitioned_rice_contents_workspace_ptr[i][0] = &encoder->private_->partitioned_rice_contents_workspace[i][0];
+		encoder->private_->partitioned_rice_contents_workspace_ptr[i][1] = &encoder->private_->partitioned_rice_contents_workspace[i][1];
+	}
+	for(i = 0; i < 2; i++) {
+		encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[i][0] = &encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0];
+		encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[i][1] = &encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1];
+	}
+
+	for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace[i][0]);
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace[i][1]);
+	}
+	for(i = 0; i < 2; i++) {
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0]);
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1]);
+	}
+	for(i = 0; i < 2; i++)
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_init(&encoder->private_->partitioned_rice_contents_extra[i]);
+
+	return encoder;
+}
+
+FLAC_API void FLAC__stream_encoder_delete(FLAC__StreamEncoder *encoder)
+{
+	uint32_t i;
+
+	if (encoder == NULL)
+		return ;
+
+	FLAC__ASSERT(0 != encoder->protected_);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->private_->frame);
+
+	encoder->private_->is_being_deleted = true;
+
+	(void)FLAC__stream_encoder_finish(encoder);
+
+	if(0 != encoder->private_->verify.decoder)
+		FLAC__stream_decoder_delete(encoder->private_->verify.decoder);
+
+	for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace[i][0]);
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace[i][1]);
+	}
+	for(i = 0; i < 2; i++) {
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][0]);
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_workspace_mid_side[i][1]);
+	}
+	for(i = 0; i < 2; i++)
+		FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(&encoder->private_->partitioned_rice_contents_extra[i]);
+
+	FLAC__bitwriter_delete(encoder->private_->frame);
+	free(encoder->private_);
+	free(encoder->protected_);
+	free(encoder);
+}
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+static FLAC__StreamEncoderInitStatus init_stream_internal_(
+	FLAC__StreamEncoder *encoder,
+	FLAC__StreamEncoderReadCallback read_callback,
+	FLAC__StreamEncoderWriteCallback write_callback,
+	FLAC__StreamEncoderSeekCallback seek_callback,
+	FLAC__StreamEncoderTellCallback tell_callback,
+	FLAC__StreamEncoderMetadataCallback metadata_callback,
+	void *client_data,
+	FLAC__bool is_ogg
+)
+{
+	uint32_t i;
+	FLAC__bool metadata_has_seektable, metadata_has_vorbis_comment, metadata_picture_has_type1, metadata_picture_has_type2;
+
+	FLAC__ASSERT(0 != encoder);
+
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
+
+	if(FLAC__HAS_OGG == 0 && is_ogg)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER;
+
+	if(0 == write_callback || (seek_callback && 0 == tell_callback))
+		return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS;
+
+	if(encoder->protected_->channels == 0 || encoder->protected_->channels > FLAC__MAX_CHANNELS)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS;
+
+	if(encoder->protected_->channels != 2) {
+		encoder->protected_->do_mid_side_stereo = false;
+		encoder->protected_->loose_mid_side_stereo = false;
+	}
+	else if(!encoder->protected_->do_mid_side_stereo)
+		encoder->protected_->loose_mid_side_stereo = false;
+
+	if(encoder->protected_->bits_per_sample < FLAC__MIN_BITS_PER_SAMPLE || encoder->protected_->bits_per_sample > FLAC__MAX_BITS_PER_SAMPLE)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE;
+
+	if(!FLAC__format_sample_rate_is_valid(encoder->protected_->sample_rate))
+		return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE;
+
+	if(encoder->protected_->blocksize == 0) {
+		if(encoder->protected_->max_lpc_order == 0)
+			encoder->protected_->blocksize = 1152;
+		else
+			encoder->protected_->blocksize = 4096;
+	}
+
+	if(encoder->protected_->blocksize < FLAC__MIN_BLOCK_SIZE || encoder->protected_->blocksize > FLAC__MAX_BLOCK_SIZE)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE;
+
+	if(encoder->protected_->max_lpc_order > FLAC__MAX_LPC_ORDER)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER;
+
+	if(encoder->protected_->blocksize < encoder->protected_->max_lpc_order)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER;
+
+	if(encoder->protected_->qlp_coeff_precision == 0) {
+		if(encoder->protected_->bits_per_sample < 16) {
+			/* @@@ need some data about how to set this here w.r.t. blocksize and sample rate */
+			/* @@@ until then we'll make a guess */
+			encoder->protected_->qlp_coeff_precision = flac_max(FLAC__MIN_QLP_COEFF_PRECISION, 2 + encoder->protected_->bits_per_sample / 2);
+		}
+		else if(encoder->protected_->bits_per_sample == 16) {
+			if(encoder->protected_->blocksize <= 192)
+				encoder->protected_->qlp_coeff_precision = 7;
+			else if(encoder->protected_->blocksize <= 384)
+				encoder->protected_->qlp_coeff_precision = 8;
+			else if(encoder->protected_->blocksize <= 576)
+				encoder->protected_->qlp_coeff_precision = 9;
+			else if(encoder->protected_->blocksize <= 1152)
+				encoder->protected_->qlp_coeff_precision = 10;
+			else if(encoder->protected_->blocksize <= 2304)
+				encoder->protected_->qlp_coeff_precision = 11;
+			else if(encoder->protected_->blocksize <= 4608)
+				encoder->protected_->qlp_coeff_precision = 12;
+			else
+				encoder->protected_->qlp_coeff_precision = 13;
+		}
+		else {
+			if(encoder->protected_->blocksize <= 384)
+				encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION-2;
+			else if(encoder->protected_->blocksize <= 1152)
+				encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION-1;
+			else
+				encoder->protected_->qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION;
+		}
+		FLAC__ASSERT(encoder->protected_->qlp_coeff_precision <= FLAC__MAX_QLP_COEFF_PRECISION);
+	}
+	else if(encoder->protected_->qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION || encoder->protected_->qlp_coeff_precision > FLAC__MAX_QLP_COEFF_PRECISION)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION;
+
+	if(encoder->protected_->streamable_subset) {
+		if(!FLAC__format_blocksize_is_subset(encoder->protected_->blocksize, encoder->protected_->sample_rate))
+			return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
+		if(!FLAC__format_sample_rate_is_subset(encoder->protected_->sample_rate))
+			return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
+		if(
+			encoder->protected_->bits_per_sample != 8 &&
+			encoder->protected_->bits_per_sample != 12 &&
+			encoder->protected_->bits_per_sample != 16 &&
+			encoder->protected_->bits_per_sample != 20 &&
+			encoder->protected_->bits_per_sample != 24 &&
+			encoder->protected_->bits_per_sample != 32
+		)
+			return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
+		if(encoder->protected_->max_residual_partition_order > FLAC__SUBSET_MAX_RICE_PARTITION_ORDER)
+			return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
+		if(
+			encoder->protected_->sample_rate <= 48000 &&
+			(
+				encoder->protected_->blocksize > FLAC__SUBSET_MAX_BLOCK_SIZE_48000HZ ||
+				encoder->protected_->max_lpc_order > FLAC__SUBSET_MAX_LPC_ORDER_48000HZ
+			)
+		) {
+			return FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE;
+		}
+	}
+
+	if(encoder->protected_->max_residual_partition_order >= (1u << FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
+		encoder->protected_->max_residual_partition_order = (1u << FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN) - 1;
+	if(encoder->protected_->min_residual_partition_order >= encoder->protected_->max_residual_partition_order)
+		encoder->protected_->min_residual_partition_order = encoder->protected_->max_residual_partition_order;
+
+#if FLAC__HAS_OGG
+	/* reorder metadata if necessary to ensure that any VORBIS_COMMENT is the first, according to the mapping spec */
+	if(is_ogg && 0 != encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 1) {
+		uint32_t i1;
+		for(i1 = 1; i1 < encoder->protected_->num_metadata_blocks; i1++) {
+			if(0 != encoder->protected_->metadata[i1] && encoder->protected_->metadata[i1]->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
+				FLAC__StreamMetadata *vc = encoder->protected_->metadata[i1];
+				for( ; i1 > 0; i1--)
+					encoder->protected_->metadata[i1] = encoder->protected_->metadata[i1-1];
+				encoder->protected_->metadata[0] = vc;
+				break;
+			}
+		}
+	}
+#endif
+	/* keep track of any SEEKTABLE block */
+	if(0 != encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 0) {
+		uint32_t i2;
+		for(i2 = 0; i2 < encoder->protected_->num_metadata_blocks; i2++) {
+			if(0 != encoder->protected_->metadata[i2] && encoder->protected_->metadata[i2]->type == FLAC__METADATA_TYPE_SEEKTABLE) {
+				encoder->private_->seek_table = &encoder->protected_->metadata[i2]->data.seek_table;
+				break; /* take only the first one */
+			}
+		}
+	}
+
+	/* validate metadata */
+	if(0 == encoder->protected_->metadata && encoder->protected_->num_metadata_blocks > 0)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
+	metadata_has_seektable = false;
+	metadata_has_vorbis_comment = false;
+	metadata_picture_has_type1 = false;
+	metadata_picture_has_type2 = false;
+	for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
+		const FLAC__StreamMetadata *m = encoder->protected_->metadata[i];
+		if(m->type == FLAC__METADATA_TYPE_STREAMINFO)
+			return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
+		else if(m->type == FLAC__METADATA_TYPE_SEEKTABLE) {
+			if(metadata_has_seektable) /* only one is allowed */
+				return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
+			metadata_has_seektable = true;
+			if(!FLAC__format_seektable_is_legal(&m->data.seek_table))
+				return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
+		}
+		else if(m->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
+			if(metadata_has_vorbis_comment) /* only one is allowed */
+				return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
+			metadata_has_vorbis_comment = true;
+		}
+		else if(m->type == FLAC__METADATA_TYPE_CUESHEET) {
+			if(!FLAC__format_cuesheet_is_legal(&m->data.cue_sheet, m->data.cue_sheet.is_cd, /*violation=*/0))
+				return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
+		}
+		else if(m->type == FLAC__METADATA_TYPE_PICTURE) {
+			if(!FLAC__format_picture_is_legal(&m->data.picture, /*violation=*/0))
+				return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
+			if(m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD) {
+				if(metadata_picture_has_type1) /* there should only be 1 per stream */
+					return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
+				metadata_picture_has_type1 = true;
+				/* standard icon must be 32x32 pixel PNG */
+				if(
+					m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON_STANDARD &&
+					(
+						(strcmp(m->data.picture.mime_type, "image/png") && strcmp(m->data.picture.mime_type, "-->")) ||
+						m->data.picture.width != 32 ||
+						m->data.picture.height != 32
+					)
+				)
+					return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
+			}
+			else if(m->data.picture.type == FLAC__STREAM_METADATA_PICTURE_TYPE_FILE_ICON) {
+				if(metadata_picture_has_type2) /* there should only be 1 per stream */
+					return FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA;
+				metadata_picture_has_type2 = true;
+			}
+		}
+	}
+
+	encoder->private_->input_capacity = 0;
+	for(i = 0; i < encoder->protected_->channels; i++) {
+		encoder->private_->integer_signal_unaligned[i] = encoder->private_->integer_signal[i] = 0;
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+		encoder->private_->real_signal_unaligned[i] = encoder->private_->real_signal[i] = 0;
+#endif
+	}
+	for(i = 0; i < 2; i++) {
+		encoder->private_->integer_signal_mid_side_unaligned[i] = encoder->private_->integer_signal_mid_side[i] = 0;
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+		encoder->private_->real_signal_mid_side_unaligned[i] = encoder->private_->real_signal_mid_side[i] = 0;
+#endif
+	}
+	encoder->private_->integer_signal_33bit_side_unaligned = encoder->private_->integer_signal_33bit_side = 0;
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	for(i = 0; i < encoder->protected_->num_apodizations; i++)
+		encoder->private_->window_unaligned[i] = encoder->private_->window[i] = 0;
+	encoder->private_->windowed_signal_unaligned = encoder->private_->windowed_signal = 0;
+#endif
+	for(i = 0; i < encoder->protected_->channels; i++) {
+		encoder->private_->residual_workspace_unaligned[i][0] = encoder->private_->residual_workspace[i][0] = 0;
+		encoder->private_->residual_workspace_unaligned[i][1] = encoder->private_->residual_workspace[i][1] = 0;
+		encoder->private_->best_subframe[i] = 0;
+	}
+	for(i = 0; i < 2; i++) {
+		encoder->private_->residual_workspace_mid_side_unaligned[i][0] = encoder->private_->residual_workspace_mid_side[i][0] = 0;
+		encoder->private_->residual_workspace_mid_side_unaligned[i][1] = encoder->private_->residual_workspace_mid_side[i][1] = 0;
+		encoder->private_->best_subframe_mid_side[i] = 0;
+	}
+	encoder->private_->abs_residual_partition_sums_unaligned = encoder->private_->abs_residual_partition_sums = 0;
+	encoder->private_->raw_bits_per_partition_unaligned = encoder->private_->raw_bits_per_partition = 0;
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	encoder->private_->loose_mid_side_stereo_frames = (uint32_t)((double)encoder->protected_->sample_rate * 0.4 / (double)encoder->protected_->blocksize + 0.5);
+#else
+	/* 26214 is the approximate fixed-point equivalent to 0.4 (0.4 * 2^16) */
+	/* sample rate can be up to 1048575 Hz, and thus use 20 bits, so we do the multiply&divide by hand */
+	FLAC__ASSERT(FLAC__MAX_SAMPLE_RATE <= 1048575);
+	FLAC__ASSERT(FLAC__MAX_BLOCK_SIZE <= 65535);
+	FLAC__ASSERT(encoder->protected_->sample_rate <= 1048575);
+	FLAC__ASSERT(encoder->protected_->blocksize <= 65535);
+	encoder->private_->loose_mid_side_stereo_frames = (uint32_t)FLAC__fixedpoint_trunc((((FLAC__uint64)(encoder->protected_->sample_rate) * (FLAC__uint64)(26214)) << 16) / (encoder->protected_->blocksize<<16) + FLAC__FP_ONE_HALF);
+#endif
+	if(encoder->private_->loose_mid_side_stereo_frames == 0)
+		encoder->private_->loose_mid_side_stereo_frames = 1;
+	encoder->private_->loose_mid_side_stereo_frame_count = 0;
+	encoder->private_->current_sample_number = 0;
+	encoder->private_->current_frame_number = 0;
+
+	/*
+	 * get the CPU info and set the function pointers
+	 */
+	FLAC__cpu_info(&encoder->private_->cpuinfo);
+	/* remove cpu info as requested by
+	 * FLAC__stream_encoder_disable_instruction_set */
+	if(encoder->private_->disable_mmx)
+		encoder->private_->cpuinfo.x86.mmx = false;
+	if(encoder->private_->disable_sse2)
+		encoder->private_->cpuinfo.x86.sse2 = false;
+	if(encoder->private_->disable_ssse3)
+		encoder->private_->cpuinfo.x86.ssse3 = false;
+	if(encoder->private_->disable_sse41)
+		encoder->private_->cpuinfo.x86.sse41 = false;
+	if(encoder->private_->disable_avx2)
+		encoder->private_->cpuinfo.x86.avx2 = false;
+	if(encoder->private_->disable_fma)
+		encoder->private_->cpuinfo.x86.fma = false;
+	/* first default to the non-asm routines */
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
+#endif
+	encoder->private_->local_precompute_partition_info_sums = precompute_partition_info_sums_;
+	encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor;
+	encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide;
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients;
+	encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide;
+	encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients;
+#endif
+	/* now override with asm where appropriate */
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+# ifndef FLAC__NO_ASM
+#if defined(FLAC__CPU_PPC64) && defined(FLAC__USE_VSX)
+#ifdef FLAC__HAS_TARGET_POWER8
+#ifdef FLAC__HAS_TARGET_POWER9
+	if (encoder->private_->cpuinfo.ppc.arch_3_00) {
+		if(encoder->protected_->max_lpc_order < 8)
+			encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_power9_vsx_lag_8;
+		else if(encoder->protected_->max_lpc_order < 10)
+			encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_power9_vsx_lag_10;
+		else if(encoder->protected_->max_lpc_order < 14)
+			encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_power9_vsx_lag_14;
+		else
+			encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
+	} else
+#endif
+	if (encoder->private_->cpuinfo.ppc.arch_2_07) {
+		if(encoder->protected_->max_lpc_order < 8)
+			encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_power8_vsx_lag_8;
+		else if(encoder->protected_->max_lpc_order < 10)
+			encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_power8_vsx_lag_10;
+		else if(encoder->protected_->max_lpc_order < 14)
+			encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_power8_vsx_lag_14;
+		else
+			encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
+	}
+#endif
+#endif /* defined(FLAC__CPU_PPC64) && defined(FLAC__USE_VSX) */
+
+#if defined FLAC__CPU_ARM64 && FLAC__HAS_NEONINTRIN
+#if FLAC__HAS_A64NEONINTRIN
+	if(encoder->protected_->max_lpc_order < 8)
+		encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_neon_lag_8;
+	else if(encoder->protected_->max_lpc_order < 10)
+		encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_neon_lag_10;
+	else if(encoder->protected_->max_lpc_order < 14)
+		encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_neon_lag_14;
+	else
+		encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation;
+#endif
+    encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_neon;
+    encoder->private_->local_lpc_compute_residual_from_qlp_coefficients       = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_neon;
+    encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_neon;
+#endif /* defined FLAC__CPU_ARM64 && FLAC__HAS_NEONINTRIN */
+
+	if(encoder->private_->cpuinfo.use_asm) {
+#  ifdef FLAC__CPU_IA32
+		FLAC__ASSERT(encoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
+#   ifdef FLAC__HAS_NASM
+		encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_asm_ia32; /* OPT_IA32: was really necessary for GCC < 4.9 */
+		if (encoder->private_->cpuinfo.x86.mmx) {
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx;
+		}
+		else {
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32;
+		}
+
+		if (encoder->private_->cpuinfo.x86.mmx && encoder->private_->cpuinfo.x86.cmov)
+			encoder->private_->local_fixed_compute_best_predictor = FLAC__fixed_compute_best_predictor_asm_ia32_mmx_cmov;
+#   endif /* FLAC__HAS_NASM */
+#   if FLAC__HAS_X86INTRIN
+#    ifdef FLAC__SSE2_SUPPORTED
+		if (encoder->private_->cpuinfo.x86.sse2) {
+			if(encoder->protected_->max_lpc_order < 8)
+				encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_8;
+			else if(encoder->protected_->max_lpc_order < 10)
+				encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_10;
+			else if(encoder->protected_->max_lpc_order < 14)
+				encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_14;
+
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients       = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2;
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2;
+		}
+#    endif
+#    ifdef FLAC__SSE4_1_SUPPORTED
+		if (encoder->private_->cpuinfo.x86.sse41) {
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients       = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41;
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41;
+		}
+#    endif
+#    ifdef FLAC__AVX2_SUPPORTED
+		if (encoder->private_->cpuinfo.x86.avx2) {
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2;
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients       = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2;
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2;
+		}
+#    endif
+
+#    ifdef FLAC__SSE2_SUPPORTED
+		if (encoder->private_->cpuinfo.x86.sse2) {
+			encoder->private_->local_fixed_compute_best_predictor      = FLAC__fixed_compute_best_predictor_intrin_sse2;
+			encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_sse2;
+		}
+#    endif
+#    ifdef FLAC__SSSE3_SUPPORTED
+		if (encoder->private_->cpuinfo.x86.ssse3) {
+			encoder->private_->local_fixed_compute_best_predictor      = FLAC__fixed_compute_best_predictor_intrin_ssse3;
+			encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_ssse3;
+		}
+#    endif
+#   endif /* FLAC__HAS_X86INTRIN */
+#  elif defined FLAC__CPU_X86_64
+		FLAC__ASSERT(encoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_X86_64);
+#   if FLAC__HAS_X86INTRIN
+#    ifdef FLAC__SSE2_SUPPORTED
+		if(encoder->private_->cpuinfo.x86.sse2) { /* For fuzzing */
+			if(encoder->protected_->max_lpc_order < 8)
+				encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_8;
+			else if(encoder->protected_->max_lpc_order < 10)
+				encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_10;
+			else if(encoder->protected_->max_lpc_order < 14)
+				encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_14;
+
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2;
+		}
+#    endif
+#    ifdef FLAC__SSE4_1_SUPPORTED
+		if(encoder->private_->cpuinfo.x86.sse41) {
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41;
+		}
+#    endif
+#    ifdef FLAC__AVX2_SUPPORTED
+		if(encoder->private_->cpuinfo.x86.avx2) {
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit = FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2;
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients       = FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2;
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit = FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2;
+		}
+#    endif
+#    ifdef FLAC__FMA_SUPPORTED
+		if(encoder->private_->cpuinfo.x86.fma) {
+			if(encoder->protected_->max_lpc_order < 8)
+				encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_fma_lag_8;
+			else if(encoder->protected_->max_lpc_order < 12)
+				encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_fma_lag_12;
+			else if(encoder->protected_->max_lpc_order < 16)
+				encoder->private_->local_lpc_compute_autocorrelation = FLAC__lpc_compute_autocorrelation_intrin_fma_lag_16;
+		}
+#    endif
+
+
+#    ifdef FLAC__SSE2_SUPPORTED
+		if(encoder->private_->cpuinfo.x86.sse2) { /* For fuzzing */
+			encoder->private_->local_fixed_compute_best_predictor      = FLAC__fixed_compute_best_predictor_intrin_sse2;
+			encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_sse2;
+		}
+#    endif
+#    ifdef FLAC__SSSE3_SUPPORTED
+		if (encoder->private_->cpuinfo.x86.ssse3) {
+			encoder->private_->local_fixed_compute_best_predictor      = FLAC__fixed_compute_best_predictor_intrin_ssse3;
+			encoder->private_->local_fixed_compute_best_predictor_wide = FLAC__fixed_compute_best_predictor_wide_intrin_ssse3;
+		}
+#    endif
+#   endif /* FLAC__HAS_X86INTRIN */
+#  endif /* FLAC__CPU_... */
+	}
+# endif /* !FLAC__NO_ASM */
+
+#endif /* !FLAC__INTEGER_ONLY_LIBRARY */
+#if !defined FLAC__NO_ASM && FLAC__HAS_X86INTRIN
+	if(encoder->private_->cpuinfo.use_asm) {
+# if defined FLAC__CPU_IA32
+#  ifdef FLAC__SSE2_SUPPORTED
+		if (encoder->private_->cpuinfo.x86.sse2)
+			encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_sse2;
+#  endif
+#  ifdef FLAC__SSSE3_SUPPORTED
+		if (encoder->private_->cpuinfo.x86.ssse3)
+			encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_ssse3;
+#  endif
+#  ifdef FLAC__AVX2_SUPPORTED
+		if (encoder->private_->cpuinfo.x86.avx2)
+			encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_avx2;
+#  endif
+# elif defined FLAC__CPU_X86_64
+#  ifdef FLAC__SSE2_SUPPORTED
+		encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_sse2;
+#  endif
+#  ifdef FLAC__SSSE3_SUPPORTED
+		if(encoder->private_->cpuinfo.x86.ssse3)
+			encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_ssse3;
+#  endif
+#  ifdef FLAC__AVX2_SUPPORTED
+		if(encoder->private_->cpuinfo.x86.avx2)
+			encoder->private_->local_precompute_partition_info_sums = FLAC__precompute_partition_info_sums_intrin_avx2;
+#  endif
+# endif /* FLAC__CPU_... */
+	}
+#endif /* !FLAC__NO_ASM && FLAC__HAS_X86INTRIN */
+
+	/* set state to OK; from here on, errors are fatal and we'll override the state then */
+	encoder->protected_->state = FLAC__STREAM_ENCODER_OK;
+
+#if FLAC__HAS_OGG
+	encoder->private_->is_ogg = is_ogg;
+	if(is_ogg && !FLAC__ogg_encoder_aspect_init(&encoder->protected_->ogg_encoder_aspect)) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+	}
+#endif
+
+	encoder->private_->read_callback = read_callback;
+	encoder->private_->write_callback = write_callback;
+	encoder->private_->seek_callback = seek_callback;
+	encoder->private_->tell_callback = tell_callback;
+	encoder->private_->metadata_callback = metadata_callback;
+	encoder->private_->client_data = client_data;
+
+	if(!resize_buffers_(encoder, encoder->protected_->blocksize)) {
+		/* the above function sets the state for us in case of an error */
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+	}
+
+	if(!FLAC__bitwriter_init(encoder->private_->frame)) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+	}
+
+	/*
+	 * Set up the verify stuff if necessary
+	 */
+	if(encoder->protected_->verify) {
+		/*
+		 * First, set up the fifo which will hold the
+		 * original signal to compare against
+		 */
+		encoder->private_->verify.input_fifo.size = encoder->protected_->blocksize+OVERREAD_;
+		for(i = 0; i < encoder->protected_->channels; i++) {
+			if(0 == (encoder->private_->verify.input_fifo.data[i] = safe_malloc_mul_2op_p(sizeof(FLAC__int32), /*times*/encoder->private_->verify.input_fifo.size))) {
+				encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+				return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+			}
+		}
+		encoder->private_->verify.input_fifo.tail = 0;
+
+		/*
+		 * Now set up a stream decoder for verification
+		 */
+		if(0 == encoder->private_->verify.decoder) {
+			encoder->private_->verify.decoder = FLAC__stream_decoder_new();
+			if(0 == encoder->private_->verify.decoder) {
+				encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
+				return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+			}
+		}
+
+		if(FLAC__stream_decoder_init_stream(encoder->private_->verify.decoder, verify_read_callback_, /*seek_callback=*/0, /*tell_callback=*/0, /*length_callback=*/0, /*eof_callback=*/0, verify_write_callback_, verify_metadata_callback_, verify_error_callback_, /*client_data=*/encoder) != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
+			return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+		}
+	}
+	encoder->private_->verify.error_stats.absolute_sample = 0;
+	encoder->private_->verify.error_stats.frame_number = 0;
+	encoder->private_->verify.error_stats.channel = 0;
+	encoder->private_->verify.error_stats.sample = 0;
+	encoder->private_->verify.error_stats.expected = 0;
+	encoder->private_->verify.error_stats.got = 0;
+
+	/*
+	 * These must be done before we write any metadata, because that
+	 * calls the write_callback, which uses these values.
+	 */
+	encoder->private_->first_seekpoint_to_check = 0;
+	encoder->private_->samples_written = 0;
+	encoder->protected_->streaminfo_offset = 0;
+	encoder->protected_->seektable_offset = 0;
+	encoder->protected_->audio_offset = 0;
+
+	/*
+	 * write the stream header
+	 */
+	if(encoder->protected_->verify)
+		encoder->private_->verify.state_hint = ENCODER_IN_MAGIC;
+	if(!FLAC__bitwriter_write_raw_uint32(encoder->private_->frame, FLAC__STREAM_SYNC, FLAC__STREAM_SYNC_LEN)) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+	}
+	if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
+		/* the above function sets the state for us in case of an error */
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+	}
+
+	/*
+	 * write the STREAMINFO metadata block
+	 */
+	if(encoder->protected_->verify)
+		encoder->private_->verify.state_hint = ENCODER_IN_METADATA;
+	encoder->private_->streaminfo.type = FLAC__METADATA_TYPE_STREAMINFO;
+	encoder->private_->streaminfo.is_last = false; /* we will have at a minimum a VORBIS_COMMENT afterwards */
+	encoder->private_->streaminfo.length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH;
+	encoder->private_->streaminfo.data.stream_info.min_blocksize = encoder->protected_->blocksize; /* this encoder uses the same blocksize for the whole stream */
+	encoder->private_->streaminfo.data.stream_info.max_blocksize = encoder->protected_->blocksize;
+	encoder->private_->streaminfo.data.stream_info.min_framesize = 0; /* we don't know this yet; have to fill it in later */
+	encoder->private_->streaminfo.data.stream_info.max_framesize = 0; /* we don't know this yet; have to fill it in later */
+	encoder->private_->streaminfo.data.stream_info.sample_rate = encoder->protected_->sample_rate;
+	encoder->private_->streaminfo.data.stream_info.channels = encoder->protected_->channels;
+	encoder->private_->streaminfo.data.stream_info.bits_per_sample = encoder->protected_->bits_per_sample;
+	encoder->private_->streaminfo.data.stream_info.total_samples = encoder->protected_->total_samples_estimate; /* we will replace this later with the real total */
+	memset(encoder->private_->streaminfo.data.stream_info.md5sum, 0, 16); /* we don't know this yet; have to fill it in later */
+	if(encoder->protected_->do_md5)
+		FLAC__MD5Init(&encoder->private_->md5context);
+	if(!FLAC__add_metadata_block(&encoder->private_->streaminfo, encoder->private_->frame)) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+	}
+	if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
+		/* the above function sets the state for us in case of an error */
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+	}
+
+	/*
+	 * Now that the STREAMINFO block is written, we can init this to an
+	 * absurdly-high value...
+	 */
+	encoder->private_->streaminfo.data.stream_info.min_framesize = (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN) - 1;
+	/* ... and clear this to 0 */
+	encoder->private_->streaminfo.data.stream_info.total_samples = 0;
+
+	/*
+	 * Check to see if the supplied metadata contains a VORBIS_COMMENT;
+	 * if not, we will write an empty one (FLAC__add_metadata_block()
+	 * automatically supplies the vendor string).
+	 *
+	 * WATCHOUT: the Ogg FLAC mapping requires us to write this block after
+	 * the STREAMINFO.  (In the case that metadata_has_vorbis_comment is
+	 * true it will have already insured that the metadata list is properly
+	 * ordered.)
+	 */
+	if(!metadata_has_vorbis_comment) {
+		FLAC__StreamMetadata vorbis_comment;
+		vorbis_comment.type = FLAC__METADATA_TYPE_VORBIS_COMMENT;
+		vorbis_comment.is_last = (encoder->protected_->num_metadata_blocks == 0);
+		vorbis_comment.length = 4 + 4; /* MAGIC NUMBER */
+		vorbis_comment.data.vorbis_comment.vendor_string.length = 0;
+		vorbis_comment.data.vorbis_comment.vendor_string.entry = 0;
+		vorbis_comment.data.vorbis_comment.num_comments = 0;
+		vorbis_comment.data.vorbis_comment.comments = 0;
+		if(!FLAC__add_metadata_block(&vorbis_comment, encoder->private_->frame)) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
+			return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+		}
+		if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
+			/* the above function sets the state for us in case of an error */
+			return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+		}
+	}
+
+	/*
+	 * write the user's metadata blocks
+	 */
+	for(i = 0; i < encoder->protected_->num_metadata_blocks; i++) {
+		encoder->protected_->metadata[i]->is_last = (i == encoder->protected_->num_metadata_blocks - 1);
+		if(!FLAC__add_metadata_block(encoder->protected_->metadata[i], encoder->private_->frame)) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
+			return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+		}
+		if(!write_bitbuffer_(encoder, 0, /*is_last_block=*/false)) {
+			/* the above function sets the state for us in case of an error */
+			return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+		}
+	}
+
+	/* now that all the metadata is written, we save the stream offset */
+	if(encoder->private_->tell_callback && encoder->private_->tell_callback(encoder, &encoder->protected_->audio_offset, encoder->private_->client_data) == FLAC__STREAM_ENCODER_TELL_STATUS_ERROR) { /* FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED just means we didn't get the offset; no error */
+		encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+	}
+
+	if(encoder->protected_->verify)
+		encoder->private_->verify.state_hint = ENCODER_IN_AUDIO;
+
+	return FLAC__STREAM_ENCODER_INIT_STATUS_OK;
+}
+
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_stream(
+	FLAC__StreamEncoder *encoder,
+	FLAC__StreamEncoderWriteCallback write_callback,
+	FLAC__StreamEncoderSeekCallback seek_callback,
+	FLAC__StreamEncoderTellCallback tell_callback,
+	FLAC__StreamEncoderMetadataCallback metadata_callback,
+	void *client_data
+)
+{
+	return init_stream_internal_(
+		encoder,
+		/*read_callback=*/0,
+		write_callback,
+		seek_callback,
+		tell_callback,
+		metadata_callback,
+		client_data,
+		/*is_ogg=*/false
+	);
+}
+
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_stream(
+	FLAC__StreamEncoder *encoder,
+	FLAC__StreamEncoderReadCallback read_callback,
+	FLAC__StreamEncoderWriteCallback write_callback,
+	FLAC__StreamEncoderSeekCallback seek_callback,
+	FLAC__StreamEncoderTellCallback tell_callback,
+	FLAC__StreamEncoderMetadataCallback metadata_callback,
+	void *client_data
+)
+{
+	return init_stream_internal_(
+		encoder,
+		read_callback,
+		write_callback,
+		seek_callback,
+		tell_callback,
+		metadata_callback,
+		client_data,
+		/*is_ogg=*/true
+	);
+}
+
+static FLAC__StreamEncoderInitStatus init_FILE_internal_(
+	FLAC__StreamEncoder *encoder,
+	FILE *file,
+	FLAC__StreamEncoderProgressCallback progress_callback,
+	void *client_data,
+	FLAC__bool is_ogg
+)
+{
+	FLAC__StreamEncoderInitStatus init_status;
+
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != file);
+
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
+
+	/* double protection */
+	if(file == 0) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_IO_ERROR;
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+	}
+
+	/*
+	 * To make sure that our file does not go unclosed after an error, we
+	 * must assign the FILE pointer before any further error can occur in
+	 * this routine.
+	 */
+	if(file == stdout)
+		file = get_binary_stdout_(); /* just to be safe */
+
+#ifdef _WIN32
+	/*
+	 * Windows can suffer quite badly from disk fragmentation. This can be
+	 * reduced significantly by setting the output buffer size to be 10MB.
+	 */
+	if(GetFileType((HANDLE)_get_osfhandle(_fileno(file))) == FILE_TYPE_DISK)
+		setvbuf(file, NULL, _IOFBF, 10*1024*1024);
+#endif
+	encoder->private_->file = file;
+
+	encoder->private_->progress_callback = progress_callback;
+	encoder->private_->bytes_written = 0;
+	encoder->private_->samples_written = 0;
+	encoder->private_->frames_written = 0;
+
+	init_status = init_stream_internal_(
+		encoder,
+		encoder->private_->file == stdout? 0 : is_ogg? file_read_callback_ : 0,
+		file_write_callback_,
+		encoder->private_->file == stdout? 0 : file_seek_callback_,
+		encoder->private_->file == stdout? 0 : file_tell_callback_,
+		/*metadata_callback=*/0,
+		client_data,
+		is_ogg
+	);
+	if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
+		/* the above function sets the state for us in case of an error */
+		return init_status;
+	}
+
+	{
+		uint32_t blocksize = FLAC__stream_encoder_get_blocksize(encoder);
+
+		FLAC__ASSERT(blocksize != 0);
+		encoder->private_->total_frames_estimate = (uint32_t)((FLAC__stream_encoder_get_total_samples_estimate(encoder) + blocksize - 1) / blocksize);
+	}
+
+	return init_status;
+}
+
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_FILE(
+	FLAC__StreamEncoder *encoder,
+	FILE *file,
+	FLAC__StreamEncoderProgressCallback progress_callback,
+	void *client_data
+)
+{
+	return init_FILE_internal_(encoder, file, progress_callback, client_data, /*is_ogg=*/false);
+}
+
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_FILE(
+	FLAC__StreamEncoder *encoder,
+	FILE *file,
+	FLAC__StreamEncoderProgressCallback progress_callback,
+	void *client_data
+)
+{
+	return init_FILE_internal_(encoder, file, progress_callback, client_data, /*is_ogg=*/true);
+}
+
+static FLAC__StreamEncoderInitStatus init_file_internal_(
+	FLAC__StreamEncoder *encoder,
+	const char *filename,
+	FLAC__StreamEncoderProgressCallback progress_callback,
+	void *client_data,
+	FLAC__bool is_ogg
+)
+{
+	FILE *file;
+
+	FLAC__ASSERT(0 != encoder);
+
+	/*
+	 * To make sure that our file does not go unclosed after an error, we
+	 * have to do the same entrance checks here that are later performed
+	 * in FLAC__stream_encoder_init_FILE() before the FILE* is assigned.
+	 */
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED;
+
+	file = filename? flac_fopen(filename, "w+b") : stdout;
+
+	if(file == 0) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_IO_ERROR;
+		return FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
+	}
+
+	return init_FILE_internal_(encoder, file, progress_callback, client_data, is_ogg);
+}
+
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_file(
+	FLAC__StreamEncoder *encoder,
+	const char *filename,
+	FLAC__StreamEncoderProgressCallback progress_callback,
+	void *client_data
+)
+{
+	return init_file_internal_(encoder, filename, progress_callback, client_data, /*is_ogg=*/false);
+}
+
+FLAC_API FLAC__StreamEncoderInitStatus FLAC__stream_encoder_init_ogg_file(
+	FLAC__StreamEncoder *encoder,
+	const char *filename,
+	FLAC__StreamEncoderProgressCallback progress_callback,
+	void *client_data
+)
+{
+	return init_file_internal_(encoder, filename, progress_callback, client_data, /*is_ogg=*/true);
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_finish(FLAC__StreamEncoder *encoder)
+{
+	FLAC__bool error = false;
+
+	if (encoder == NULL)
+		return false;
+
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+
+	if(encoder->protected_->state == FLAC__STREAM_ENCODER_UNINITIALIZED){
+		if(encoder->protected_->metadata){ // True in case FLAC__stream_encoder_set_metadata was used but init failed
+			free(encoder->protected_->metadata);
+			encoder->protected_->metadata = 0;
+			encoder->protected_->num_metadata_blocks = 0;
+		}
+		if(0 != encoder->private_->file) {
+			if(encoder->private_->file != stdout)
+				fclose(encoder->private_->file);
+			encoder->private_->file = 0;
+		}
+		return true;
+	}
+
+	if(encoder->protected_->state == FLAC__STREAM_ENCODER_OK && !encoder->private_->is_being_deleted) {
+		if(encoder->private_->current_sample_number != 0) {
+			encoder->protected_->blocksize = encoder->private_->current_sample_number;
+			if(!process_frame_(encoder, /*is_last_block=*/true))
+				error = true;
+		}
+	}
+
+	if(encoder->protected_->do_md5)
+		FLAC__MD5Final(encoder->private_->streaminfo.data.stream_info.md5sum, &encoder->private_->md5context);
+
+	if(!encoder->private_->is_being_deleted) {
+		if(encoder->protected_->state == FLAC__STREAM_ENCODER_OK) {
+			if(encoder->private_->seek_callback) {
+#if FLAC__HAS_OGG
+				if(encoder->private_->is_ogg)
+					update_ogg_metadata_(encoder);
+				else
+#endif
+				update_metadata_(encoder);
+
+				/* check if an error occurred while updating metadata */
+				if(encoder->protected_->state != FLAC__STREAM_ENCODER_OK)
+					error = true;
+			}
+			if(encoder->private_->metadata_callback)
+				encoder->private_->metadata_callback(encoder, &encoder->private_->streaminfo, encoder->private_->client_data);
+		}
+
+		if(encoder->protected_->verify && 0 != encoder->private_->verify.decoder && !FLAC__stream_decoder_finish(encoder->private_->verify.decoder)) {
+			if(!error)
+				encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA;
+			error = true;
+		}
+	}
+
+	if(0 != encoder->private_->file) {
+		if(encoder->private_->file != stdout)
+			fclose(encoder->private_->file);
+		encoder->private_->file = 0;
+	}
+
+#if FLAC__HAS_OGG
+	if(encoder->private_->is_ogg)
+		FLAC__ogg_encoder_aspect_finish(&encoder->protected_->ogg_encoder_aspect);
+#endif
+
+	free_(encoder);
+	set_defaults_(encoder);
+
+	if(!error)
+		encoder->protected_->state = FLAC__STREAM_ENCODER_UNINITIALIZED;
+
+	return !error;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_ogg_serial_number(FLAC__StreamEncoder *encoder, long value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+#if FLAC__HAS_OGG
+	/* can't check encoder->private_->is_ogg since that's not set until init time */
+	FLAC__ogg_encoder_aspect_set_serial_number(&encoder->protected_->ogg_encoder_aspect, value);
+	return true;
+#else
+	(void)value;
+	return false;
+#endif
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_verify(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+#ifndef FLAC__MANDATORY_VERIFY_WHILE_ENCODING
+	encoder->protected_->verify = value;
+#endif
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_streamable_subset(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->streamable_subset = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_do_md5(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->do_md5 = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_channels(FLAC__StreamEncoder *encoder, uint32_t value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->channels = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_bits_per_sample(FLAC__StreamEncoder *encoder, uint32_t value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->bits_per_sample = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_sample_rate(FLAC__StreamEncoder *encoder, uint32_t value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->sample_rate = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_compression_level(FLAC__StreamEncoder *encoder, uint32_t value)
+{
+	FLAC__bool ok = true;
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	if(value >= sizeof(compression_levels_)/sizeof(compression_levels_[0]))
+		value = sizeof(compression_levels_)/sizeof(compression_levels_[0]) - 1;
+	ok &= FLAC__stream_encoder_set_do_mid_side_stereo          (encoder, compression_levels_[value].do_mid_side_stereo);
+	ok &= FLAC__stream_encoder_set_loose_mid_side_stereo       (encoder, compression_levels_[value].loose_mid_side_stereo);
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#if 1
+	ok &= FLAC__stream_encoder_set_apodization                 (encoder, compression_levels_[value].apodization);
+#else
+	/* equivalent to -A tukey(0.5) */
+	encoder->protected_->num_apodizations = 1;
+	encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
+	encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
+#endif
+#endif
+	ok &= FLAC__stream_encoder_set_max_lpc_order               (encoder, compression_levels_[value].max_lpc_order);
+	ok &= FLAC__stream_encoder_set_qlp_coeff_precision         (encoder, compression_levels_[value].qlp_coeff_precision);
+	ok &= FLAC__stream_encoder_set_do_qlp_coeff_prec_search    (encoder, compression_levels_[value].do_qlp_coeff_prec_search);
+	ok &= FLAC__stream_encoder_set_do_escape_coding            (encoder, compression_levels_[value].do_escape_coding);
+	ok &= FLAC__stream_encoder_set_do_exhaustive_model_search  (encoder, compression_levels_[value].do_exhaustive_model_search);
+	ok &= FLAC__stream_encoder_set_min_residual_partition_order(encoder, compression_levels_[value].min_residual_partition_order);
+	ok &= FLAC__stream_encoder_set_max_residual_partition_order(encoder, compression_levels_[value].max_residual_partition_order);
+	ok &= FLAC__stream_encoder_set_rice_parameter_search_dist  (encoder, compression_levels_[value].rice_parameter_search_dist);
+	return ok;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_blocksize(FLAC__StreamEncoder *encoder, uint32_t value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->blocksize = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_do_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->do_mid_side_stereo = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_loose_mid_side_stereo(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->loose_mid_side_stereo = value;
+	return true;
+}
+
+/*@@@@add to tests*/
+FLAC_API FLAC__bool FLAC__stream_encoder_set_apodization(FLAC__StreamEncoder *encoder, const char *specification)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	FLAC__ASSERT(0 != specification);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+#ifdef FLAC__INTEGER_ONLY_LIBRARY
+	(void)specification; /* silently ignore since we haven't integerized; will always use a rectangular window */
+#else
+	encoder->protected_->num_apodizations = 0;
+	while(1) {
+		const char *s = strchr(specification, ';');
+		const size_t n = s? (size_t)(s - specification) : strlen(specification);
+		if     (n==8  && 0 == strncmp("bartlett"     , specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BARTLETT;
+		else if(n==13 && 0 == strncmp("bartlett_hann", specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BARTLETT_HANN;
+		else if(n==8  && 0 == strncmp("blackman"     , specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BLACKMAN;
+		else if(n==26 && 0 == strncmp("blackman_harris_4term_92db", specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE;
+		else if(n==6  && 0 == strncmp("connes"       , specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_CONNES;
+		else if(n==7  && 0 == strncmp("flattop"      , specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_FLATTOP;
+		else if(n>7   && 0 == strncmp("gauss("       , specification, 6)) {
+			FLAC__real stddev = (FLAC__real)strtod(specification+6, 0);
+			if (stddev > 0.0 && stddev <= 0.5) {
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.gauss.stddev = stddev;
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_GAUSS;
+			}
+		}
+		else if(n==7  && 0 == strncmp("hamming"      , specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_HAMMING;
+		else if(n==4  && 0 == strncmp("hann"         , specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_HANN;
+		else if(n==13 && 0 == strncmp("kaiser_bessel", specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_KAISER_BESSEL;
+		else if(n==7  && 0 == strncmp("nuttall"      , specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_NUTTALL;
+		else if(n==9  && 0 == strncmp("rectangle"    , specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_RECTANGLE;
+		else if(n==8  && 0 == strncmp("triangle"     , specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TRIANGLE;
+		else if(n>7   && 0 == strncmp("tukey("       , specification, 6)) {
+			FLAC__real p = (FLAC__real)strtod(specification+6, 0);
+			if (p >= 0.0 && p <= 1.0) {
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.tukey.p = p;
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TUKEY;
+			}
+		}
+		else if(n>15   && 0 == strncmp("partial_tukey(", specification, 14)) {
+			FLAC__int32 tukey_parts = (FLAC__int32)strtod(specification+14, 0);
+			const char *si_1 = strchr(specification, '/');
+			FLAC__real overlap = si_1?flac_min((FLAC__real)strtod(si_1+1, 0),0.99f):0.1f;
+			FLAC__real overlap_units = 1.0f/(1.0f - overlap) - 1.0f;
+			const char *si_2 = strchr((si_1?(si_1+1):specification), '/');
+			FLAC__real tukey_p = si_2?(FLAC__real)strtod(si_2+1, 0):0.2f;
+
+			if (tukey_parts <= 1) {
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.tukey.p = tukey_p;
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TUKEY;
+			}else if (encoder->protected_->num_apodizations + tukey_parts < 32){
+				FLAC__int32 m;
+				for(m = 0; m < tukey_parts; m++){
+					encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.p = tukey_p;
+					encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.start = m/(tukey_parts+overlap_units);
+					encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.end = (m+1+overlap_units)/(tukey_parts+overlap_units);
+					encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_PARTIAL_TUKEY;
+				}
+			}
+		}
+		else if(n>16   && 0 == strncmp("punchout_tukey(", specification, 15)) {
+			FLAC__int32 tukey_parts = (FLAC__int32)strtod(specification+15, 0);
+			const char *si_1 = strchr(specification, '/');
+			FLAC__real overlap = si_1?flac_min((FLAC__real)strtod(si_1+1, 0),0.99f):0.2f;
+			FLAC__real overlap_units = 1.0f/(1.0f - overlap) - 1.0f;
+			const char *si_2 = strchr((si_1?(si_1+1):specification), '/');
+			FLAC__real tukey_p = si_2?(FLAC__real)strtod(si_2+1, 0):0.2f;
+
+			if (tukey_parts <= 1) {
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.tukey.p = tukey_p;
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_TUKEY;
+			}else if (encoder->protected_->num_apodizations + tukey_parts < 32){
+				FLAC__int32 m;
+				for(m = 0; m < tukey_parts; m++){
+					encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.p = tukey_p;
+					encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.start = m/(tukey_parts+overlap_units);
+					encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.multiple_tukey.end = (m+1+overlap_units)/(tukey_parts+overlap_units);
+					encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_PUNCHOUT_TUKEY;
+				}
+			}
+		}
+		else if(n>17  && 0 == strncmp("subdivide_tukey(", specification, 16)){
+			FLAC__int32 parts = (FLAC__int32)strtod(specification+16, 0);
+			if(parts > 1){
+				const char *si_1 = strchr(specification, '/');
+				FLAC__real p = si_1?(FLAC__real)strtod(si_1+1, 0):5e-1;
+				if(p > 1)
+					p = 1;
+				else if(p < 0)
+					p = 0;
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.subdivide_tukey.parts = parts;
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations].parameters.subdivide_tukey.p = p/parts;
+				encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_SUBDIVIDE_TUKEY;
+			}
+		}
+		else if(n==5  && 0 == strncmp("welch"        , specification, n))
+			encoder->protected_->apodizations[encoder->protected_->num_apodizations++].type = FLAC__APODIZATION_WELCH;
+		if (encoder->protected_->num_apodizations == 32)
+			break;
+		if (s)
+			specification = s+1;
+		else
+			break;
+	}
+	if(encoder->protected_->num_apodizations == 0) {
+		encoder->protected_->num_apodizations = 1;
+		encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
+		encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
+	}
+#endif
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_max_lpc_order(FLAC__StreamEncoder *encoder, uint32_t value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->max_lpc_order = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_qlp_coeff_precision(FLAC__StreamEncoder *encoder, uint32_t value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->qlp_coeff_precision = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_do_qlp_coeff_prec_search(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->do_qlp_coeff_prec_search = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_do_escape_coding(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+	/* was deprecated since FLAC 1.0.4 (24-Sep-2002), but is needed for
+	 * full spec coverage, so this should be reenabled at some point.
+	 * For now only enable while fuzzing */
+	encoder->protected_->do_escape_coding = value;
+#else
+	(void)value;
+#endif
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_do_exhaustive_model_search(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->do_exhaustive_model_search = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_min_residual_partition_order(FLAC__StreamEncoder *encoder, uint32_t value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->min_residual_partition_order = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_max_residual_partition_order(FLAC__StreamEncoder *encoder, uint32_t value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->max_residual_partition_order = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_rice_parameter_search_dist(FLAC__StreamEncoder *encoder, uint32_t value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+#if 0
+	/*@@@ deprecated: */
+	encoder->protected_->rice_parameter_search_dist = value;
+#else
+	(void)value;
+#endif
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_total_samples_estimate(FLAC__StreamEncoder *encoder, FLAC__uint64 value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	value = flac_min(value, (FLAC__U64L(1) << FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN) - 1);
+	encoder->protected_->total_samples_estimate = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_metadata(FLAC__StreamEncoder *encoder, FLAC__StreamMetadata **metadata, uint32_t num_blocks)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	if(0 == metadata)
+		num_blocks = 0;
+	if(0 == num_blocks)
+		metadata = 0;
+	/* realloc() does not do exactly what we want so... */
+	if(encoder->protected_->metadata) {
+		free(encoder->protected_->metadata);
+		encoder->protected_->metadata = 0;
+		encoder->protected_->num_metadata_blocks = 0;
+	}
+	if(num_blocks) {
+		FLAC__StreamMetadata **m;
+		if(0 == (m = safe_malloc_mul_2op_p(sizeof(m[0]), /*times*/num_blocks)))
+			return false;
+		memcpy(m, metadata, sizeof(m[0]) * num_blocks);
+		encoder->protected_->metadata = m;
+		encoder->protected_->num_metadata_blocks = num_blocks;
+	}
+#if FLAC__HAS_OGG
+	if(!FLAC__ogg_encoder_aspect_set_num_metadata(&encoder->protected_->ogg_encoder_aspect, num_blocks))
+		return false;
+#endif
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_set_limit_min_bitrate(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->protected_->limit_min_bitrate = value;
+	return true;
+}
+
+/*
+ * These four functions are not static, but not publicly exposed in
+ * include/FLAC/ either.  They are used by the test suite and in fuzzing
+ */
+FLAC_API FLAC__bool FLAC__stream_encoder_disable_instruction_set(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->private_->disable_mmx = value & 1;
+	encoder->private_->disable_sse2 = value & 2;
+	encoder->private_->disable_ssse3 = value & 4;
+	encoder->private_->disable_sse41 = value & 8;
+	encoder->private_->disable_avx2 = value & 16;
+	encoder->private_->disable_fma = value & 32;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_disable_constant_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->private_->disable_constant_subframes = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_disable_fixed_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->private_->disable_fixed_subframes = value;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_disable_verbatim_subframes(FLAC__StreamEncoder *encoder, FLAC__bool value)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_UNINITIALIZED)
+		return false;
+	encoder->private_->disable_verbatim_subframes = value;
+	return true;
+}
+
+FLAC_API FLAC__StreamEncoderState FLAC__stream_encoder_get_state(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->state;
+}
+
+FLAC_API FLAC__StreamDecoderState FLAC__stream_encoder_get_verify_decoder_state(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->verify)
+		return FLAC__stream_decoder_get_state(encoder->private_->verify.decoder);
+	else
+		return FLAC__STREAM_DECODER_UNINITIALIZED;
+}
+
+FLAC_API const char *FLAC__stream_encoder_get_resolved_state_string(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR)
+		return FLAC__StreamEncoderStateString[encoder->protected_->state];
+	else
+		return FLAC__stream_decoder_get_resolved_state_string(encoder->private_->verify.decoder);
+}
+
+FLAC_API void FLAC__stream_encoder_get_verify_decoder_error_stats(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_sample, uint32_t *frame_number, uint32_t *channel, uint32_t *sample, FLAC__int32 *expected, FLAC__int32 *got)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	if(0 != absolute_sample)
+		*absolute_sample = encoder->private_->verify.error_stats.absolute_sample;
+	if(0 != frame_number)
+		*frame_number = encoder->private_->verify.error_stats.frame_number;
+	if(0 != channel)
+		*channel = encoder->private_->verify.error_stats.channel;
+	if(0 != sample)
+		*sample = encoder->private_->verify.error_stats.sample;
+	if(0 != expected)
+		*expected = encoder->private_->verify.error_stats.expected;
+	if(0 != got)
+		*got = encoder->private_->verify.error_stats.got;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_get_verify(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->verify;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_get_streamable_subset(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->streamable_subset;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_get_do_md5(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->do_md5;
+}
+
+FLAC_API uint32_t FLAC__stream_encoder_get_channels(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->channels;
+}
+
+FLAC_API uint32_t FLAC__stream_encoder_get_bits_per_sample(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->bits_per_sample;
+}
+
+FLAC_API uint32_t FLAC__stream_encoder_get_sample_rate(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->sample_rate;
+}
+
+FLAC_API uint32_t FLAC__stream_encoder_get_blocksize(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->blocksize;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_get_do_mid_side_stereo(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->do_mid_side_stereo;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_get_loose_mid_side_stereo(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->loose_mid_side_stereo;
+}
+
+FLAC_API uint32_t FLAC__stream_encoder_get_max_lpc_order(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->max_lpc_order;
+}
+
+FLAC_API uint32_t FLAC__stream_encoder_get_qlp_coeff_precision(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->qlp_coeff_precision;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_get_do_qlp_coeff_prec_search(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->do_qlp_coeff_prec_search;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_get_do_escape_coding(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->do_escape_coding;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_get_do_exhaustive_model_search(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->do_exhaustive_model_search;
+}
+
+FLAC_API uint32_t FLAC__stream_encoder_get_min_residual_partition_order(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->min_residual_partition_order;
+}
+
+FLAC_API uint32_t FLAC__stream_encoder_get_max_residual_partition_order(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->max_residual_partition_order;
+}
+
+FLAC_API uint32_t FLAC__stream_encoder_get_rice_parameter_search_dist(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->rice_parameter_search_dist;
+}
+
+FLAC_API FLAC__uint64 FLAC__stream_encoder_get_total_samples_estimate(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->total_samples_estimate;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_get_limit_min_bitrate(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+	return encoder->protected_->limit_min_bitrate;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC__int32 * const buffer[], uint32_t samples)
+{
+	uint32_t i, j = 0, k = 0, channel;
+	const uint32_t channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize, bps = encoder->protected_->bits_per_sample;
+	const FLAC__int32 sample_max = INT32_MAX >> (32 - encoder->protected_->bits_per_sample);
+	const FLAC__int32 sample_min = INT32_MIN >> (32 - encoder->protected_->bits_per_sample);
+
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_OK)
+		return false;
+
+	do {
+		const uint32_t n = flac_min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j);
+
+		if(encoder->protected_->verify)
+			append_to_verify_fifo_(&encoder->private_->verify.input_fifo, buffer, j, channels, n);
+
+		for(channel = 0; channel < channels; channel++) {
+			for(i = encoder->private_->current_sample_number, k = j; i <= blocksize && k < samples; i++, k++) {
+				if(buffer[channel][k] < sample_min || buffer[channel][k] > sample_max){
+					encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+					return false;
+				}
+			}
+			if (buffer[channel] == NULL) {
+				return false;
+			}
+			memcpy(&encoder->private_->integer_signal[channel][encoder->private_->current_sample_number], &buffer[channel][j], sizeof(buffer[channel][0]) * n);
+		}
+
+		if(encoder->protected_->do_mid_side_stereo) {
+			FLAC__ASSERT(channels == 2);
+			/* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
+			if(bps < 32)
+				for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
+					encoder->private_->integer_signal_mid_side[1][i] = buffer[0][j] - buffer[1][j];
+					encoder->private_->integer_signal_mid_side[0][i] = (buffer[0][j] + buffer[1][j]) >> 1; /* NOTE: not the same as 'mid = (buffer[0][j] + buffer[1][j]) / 2' ! */
+				}
+			else
+				for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
+					encoder->private_->integer_signal_33bit_side[i] = (FLAC__int64)buffer[0][j] - (FLAC__int64)buffer[1][j];
+					encoder->private_->integer_signal_mid_side[0][i] = ((FLAC__int64)buffer[0][j] + (FLAC__int64)buffer[1][j]) >> 1; /* NOTE: not the same as 'mid = (buffer[0][j] + buffer[1][j]) / 2' ! */
+				}
+		}
+		else
+			j += n;
+
+		encoder->private_->current_sample_number += n;
+
+		/* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
+		if(encoder->private_->current_sample_number > blocksize) {
+			FLAC__ASSERT(encoder->private_->current_sample_number == blocksize+OVERREAD_);
+			FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
+			if(!process_frame_(encoder, /*is_last_block=*/false))
+				return false;
+			/* move unprocessed overread samples to beginnings of arrays */
+			for(channel = 0; channel < channels; channel++)
+				encoder->private_->integer_signal[channel][0] = encoder->private_->integer_signal[channel][blocksize];
+			if(encoder->protected_->do_mid_side_stereo) {
+				encoder->private_->integer_signal_mid_side[0][0] = encoder->private_->integer_signal_mid_side[0][blocksize];
+				if(bps < 32)
+					encoder->private_->integer_signal_mid_side[1][0] = encoder->private_->integer_signal_mid_side[1][blocksize];
+				else
+					encoder->private_->integer_signal_33bit_side[0] = encoder->private_->integer_signal_33bit_side[blocksize];
+			}
+			encoder->private_->current_sample_number = 1;
+		}
+	} while(j < samples);
+
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder, const FLAC__int32 buffer[], uint32_t samples)
+{
+	uint32_t i, j, k, channel;
+	const uint32_t channels = encoder->protected_->channels, blocksize = encoder->protected_->blocksize, bps = encoder->protected_->bits_per_sample;
+	const FLAC__int32 sample_max = INT32_MAX >> (32 - encoder->protected_->bits_per_sample);
+	const FLAC__int32 sample_min = INT32_MIN >> (32 - encoder->protected_->bits_per_sample);
+
+	FLAC__ASSERT(0 != encoder);
+	FLAC__ASSERT(0 != encoder->private_);
+	FLAC__ASSERT(0 != encoder->protected_);
+
+	if(encoder->protected_->state != FLAC__STREAM_ENCODER_OK)
+		return false;
+
+	j = k = 0;
+	/*
+	 * we have several flavors of the same basic loop, optimized for
+	 * different conditions:
+	 */
+	if(encoder->protected_->do_mid_side_stereo && channels == 2) {
+		/*
+		 * stereo coding: unroll channel loop
+		 */
+		do {
+			if(encoder->protected_->verify)
+				append_to_verify_fifo_interleaved_(&encoder->private_->verify.input_fifo, buffer, j, channels, flac_min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j));
+
+			/* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
+			for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
+				if(buffer[k]   < sample_min || buffer[k]   > sample_max ||
+				   buffer[k+1] < sample_min || buffer[k+1] > sample_max){
+					encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+					return false;
+				}
+				encoder->private_->integer_signal[0][i] = buffer[k++];
+				encoder->private_->integer_signal[1][i] = buffer[k++];
+				if(bps < 32){
+					encoder->private_->integer_signal_mid_side[1][i] = encoder->private_->integer_signal[0][i] - encoder->private_->integer_signal[1][i];
+					encoder->private_->integer_signal_mid_side[0][i] = (encoder->private_->integer_signal[0][i] + encoder->private_->integer_signal[1][i]) >> 1;
+				}
+				else {
+					encoder->private_->integer_signal_33bit_side[i] = (FLAC__int64)encoder->private_->integer_signal[0][i] - (FLAC__int64)encoder->private_->integer_signal[1][i];
+					encoder->private_->integer_signal_mid_side[0][i] = ((FLAC__int64)encoder->private_->integer_signal[0][i] + (FLAC__int64)encoder->private_->integer_signal[1][i]) >> 1;
+				}
+			}
+			encoder->private_->current_sample_number = i;
+			/* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
+			if(i > blocksize) {
+				if(!process_frame_(encoder, /*is_last_block=*/false))
+					return false;
+				/* move unprocessed overread samples to beginnings of arrays */
+				FLAC__ASSERT(i == blocksize+OVERREAD_);
+				FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
+				encoder->private_->integer_signal[0][0] = encoder->private_->integer_signal[0][blocksize];
+				encoder->private_->integer_signal[1][0] = encoder->private_->integer_signal[1][blocksize];
+				encoder->private_->integer_signal_mid_side[0][0] = encoder->private_->integer_signal_mid_side[0][blocksize];
+				if(bps < 32)
+					encoder->private_->integer_signal_mid_side[1][0] = encoder->private_->integer_signal_mid_side[1][blocksize];
+				else
+					encoder->private_->integer_signal_33bit_side[0] = encoder->private_->integer_signal_33bit_side[blocksize];
+				encoder->private_->current_sample_number = 1;
+			}
+		} while(j < samples);
+	}
+	else {
+		/*
+		 * independent channel coding: buffer each channel in inner loop
+		 */
+		do {
+			if(encoder->protected_->verify)
+				append_to_verify_fifo_interleaved_(&encoder->private_->verify.input_fifo, buffer, j, channels, flac_min(blocksize+OVERREAD_-encoder->private_->current_sample_number, samples-j));
+
+			/* "i <= blocksize" to overread 1 sample; see comment in OVERREAD_ decl */
+			for(i = encoder->private_->current_sample_number; i <= blocksize && j < samples; i++, j++) {
+				for(channel = 0; channel < channels; channel++){
+					if(buffer[k] < sample_min || buffer[k] > sample_max){
+						encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+						return false;
+					}
+					encoder->private_->integer_signal[channel][i] = buffer[k++];
+				}
+			}
+			encoder->private_->current_sample_number = i;
+			/* we only process if we have a full block + 1 extra sample; final block is always handled by FLAC__stream_encoder_finish() */
+			if(i > blocksize) {
+				if(!process_frame_(encoder, /*is_last_block=*/false))
+					return false;
+				/* move unprocessed overread samples to beginnings of arrays */
+				FLAC__ASSERT(i == blocksize+OVERREAD_);
+				FLAC__ASSERT(OVERREAD_ == 1); /* assert we only overread 1 sample which simplifies the rest of the code below */
+				for(channel = 0; channel < channels; channel++)
+					encoder->private_->integer_signal[channel][0] = encoder->private_->integer_signal[channel][blocksize];
+				encoder->private_->current_sample_number = 1;
+			}
+		} while(j < samples);
+	}
+
+	return true;
+}
+
+/***********************************************************************
+ *
+ * Private class methods
+ *
+ ***********************************************************************/
+
+void set_defaults_(FLAC__StreamEncoder *encoder)
+{
+	FLAC__ASSERT(0 != encoder);
+
+#ifdef FLAC__MANDATORY_VERIFY_WHILE_ENCODING
+	encoder->protected_->verify = true;
+#else
+	encoder->protected_->verify = false;
+#endif
+	encoder->protected_->streamable_subset = true;
+	encoder->protected_->do_md5 = true;
+	encoder->protected_->do_mid_side_stereo = false;
+	encoder->protected_->loose_mid_side_stereo = false;
+	encoder->protected_->channels = 2;
+	encoder->protected_->bits_per_sample = 16;
+	encoder->protected_->sample_rate = 44100;
+	encoder->protected_->blocksize = 0;
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	encoder->protected_->num_apodizations = 1;
+	encoder->protected_->apodizations[0].type = FLAC__APODIZATION_TUKEY;
+	encoder->protected_->apodizations[0].parameters.tukey.p = 0.5;
+#endif
+	encoder->protected_->max_lpc_order = 0;
+	encoder->protected_->qlp_coeff_precision = 0;
+	encoder->protected_->do_qlp_coeff_prec_search = false;
+	encoder->protected_->do_exhaustive_model_search = false;
+	encoder->protected_->do_escape_coding = false;
+	encoder->protected_->min_residual_partition_order = 0;
+	encoder->protected_->max_residual_partition_order = 0;
+	encoder->protected_->rice_parameter_search_dist = 0;
+	encoder->protected_->total_samples_estimate = 0;
+	encoder->protected_->limit_min_bitrate = false;
+	encoder->protected_->metadata = 0;
+	encoder->protected_->num_metadata_blocks = 0;
+
+	encoder->private_->seek_table = 0;
+	encoder->private_->disable_mmx = false;
+	encoder->private_->disable_sse2 = false;
+	encoder->private_->disable_ssse3 = false;
+	encoder->private_->disable_sse41 = false;
+	encoder->private_->disable_avx2 = false;
+	encoder->private_->disable_constant_subframes = false;
+	encoder->private_->disable_fixed_subframes = false;
+	encoder->private_->disable_verbatim_subframes = false;
+	encoder->private_->is_ogg = false;
+	encoder->private_->read_callback = 0;
+	encoder->private_->write_callback = 0;
+	encoder->private_->seek_callback = 0;
+	encoder->private_->tell_callback = 0;
+	encoder->private_->metadata_callback = 0;
+	encoder->private_->progress_callback = 0;
+	encoder->private_->client_data = 0;
+
+#if FLAC__HAS_OGG
+	FLAC__ogg_encoder_aspect_set_defaults(&encoder->protected_->ogg_encoder_aspect);
+#endif
+
+	FLAC__stream_encoder_set_compression_level(encoder, 5);
+}
+
+void free_(FLAC__StreamEncoder *encoder)
+{
+	uint32_t i, channel;
+
+	FLAC__ASSERT(0 != encoder);
+	if(encoder->protected_->metadata) {
+		free(encoder->protected_->metadata);
+		encoder->protected_->metadata = 0;
+		encoder->protected_->num_metadata_blocks = 0;
+	}
+	for(i = 0; i < encoder->protected_->channels; i++) {
+		if(0 != encoder->private_->integer_signal_unaligned[i]) {
+			free(encoder->private_->integer_signal_unaligned[i]);
+			encoder->private_->integer_signal_unaligned[i] = 0;
+		}
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+		if(0 != encoder->private_->real_signal_unaligned[i]) {
+			free(encoder->private_->real_signal_unaligned[i]);
+			encoder->private_->real_signal_unaligned[i] = 0;
+		}
+#endif
+	}
+	for(i = 0; i < 2; i++) {
+		if(0 != encoder->private_->integer_signal_mid_side_unaligned[i]) {
+			free(encoder->private_->integer_signal_mid_side_unaligned[i]);
+			encoder->private_->integer_signal_mid_side_unaligned[i] = 0;
+		}
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+		if(0 != encoder->private_->real_signal_mid_side_unaligned[i]) {
+			free(encoder->private_->real_signal_mid_side_unaligned[i]);
+			encoder->private_->real_signal_mid_side_unaligned[i] = 0;
+		}
+#endif
+	}
+	if(0 != encoder->private_->integer_signal_33bit_side_unaligned){
+		free(encoder->private_->integer_signal_33bit_side_unaligned);
+		encoder->private_->integer_signal_33bit_side_unaligned = 0;
+	}
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	for(i = 0; i < encoder->protected_->num_apodizations; i++) {
+		if(0 != encoder->private_->window_unaligned[i]) {
+			free(encoder->private_->window_unaligned[i]);
+			encoder->private_->window_unaligned[i] = 0;
+		}
+	}
+	if(0 != encoder->private_->windowed_signal_unaligned) {
+		free(encoder->private_->windowed_signal_unaligned);
+		encoder->private_->windowed_signal_unaligned = 0;
+	}
+#endif
+	for(channel = 0; channel < encoder->protected_->channels; channel++) {
+		for(i = 0; i < 2; i++) {
+			if(0 != encoder->private_->residual_workspace_unaligned[channel][i]) {
+				free(encoder->private_->residual_workspace_unaligned[channel][i]);
+				encoder->private_->residual_workspace_unaligned[channel][i] = 0;
+			}
+		}
+	}
+	for(channel = 0; channel < 2; channel++) {
+		for(i = 0; i < 2; i++) {
+			if(0 != encoder->private_->residual_workspace_mid_side_unaligned[channel][i]) {
+				free(encoder->private_->residual_workspace_mid_side_unaligned[channel][i]);
+				encoder->private_->residual_workspace_mid_side_unaligned[channel][i] = 0;
+			}
+		}
+	}
+	if(0 != encoder->private_->abs_residual_partition_sums_unaligned) {
+		free(encoder->private_->abs_residual_partition_sums_unaligned);
+		encoder->private_->abs_residual_partition_sums_unaligned = 0;
+	}
+	if(0 != encoder->private_->raw_bits_per_partition_unaligned) {
+		free(encoder->private_->raw_bits_per_partition_unaligned);
+		encoder->private_->raw_bits_per_partition_unaligned = 0;
+	}
+	if(encoder->protected_->verify) {
+		for(i = 0; i < encoder->protected_->channels; i++) {
+			if(0 != encoder->private_->verify.input_fifo.data[i]) {
+				free(encoder->private_->verify.input_fifo.data[i]);
+				encoder->private_->verify.input_fifo.data[i] = 0;
+			}
+		}
+	}
+	FLAC__bitwriter_free(encoder->private_->frame);
+}
+
+FLAC__bool resize_buffers_(FLAC__StreamEncoder *encoder, uint32_t new_blocksize)
+{
+	FLAC__bool ok;
+	uint32_t i, channel;
+
+	FLAC__ASSERT(new_blocksize > 0);
+	FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
+	FLAC__ASSERT(encoder->private_->current_sample_number == 0);
+
+	/* To avoid excessive malloc'ing, we only grow the buffer; no shrinking. */
+	if(new_blocksize <= encoder->private_->input_capacity)
+		return true;
+
+	ok = true;
+
+	/* WATCHOUT: FLAC__lpc_compute_residual_from_qlp_coefficients_asm_ia32_mmx() and ..._intrin_sse2()
+	 * require that the input arrays (in our case the integer signals)
+	 * have a buffer of up to 3 zeroes in front (at negative indices) for
+	 * alignment purposes; we use 4 in front to keep the data well-aligned.
+	 */
+
+	for(i = 0; ok && i < encoder->protected_->channels; i++) {
+		ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize+4+OVERREAD_, &encoder->private_->integer_signal_unaligned[i], &encoder->private_->integer_signal[i]);
+		if(ok) {
+			memset(encoder->private_->integer_signal[i], 0, sizeof(FLAC__int32)*4);
+			encoder->private_->integer_signal[i] += 4;
+		}
+	}
+	for(i = 0; ok && i < 2; i++) {
+		ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize+4+OVERREAD_, &encoder->private_->integer_signal_mid_side_unaligned[i], &encoder->private_->integer_signal_mid_side[i]);
+		if(ok) {
+			memset(encoder->private_->integer_signal_mid_side[i], 0, sizeof(FLAC__int32)*4);
+			encoder->private_->integer_signal_mid_side[i] += 4;
+		}
+	}
+	ok = ok && FLAC__memory_alloc_aligned_int64_array(new_blocksize+4+OVERREAD_, &encoder->private_->integer_signal_33bit_side_unaligned, &encoder->private_->integer_signal_33bit_side);
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	if(ok && encoder->protected_->max_lpc_order > 0) {
+		for(i = 0; ok && i < encoder->protected_->num_apodizations; i++)
+			ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize, &encoder->private_->window_unaligned[i], &encoder->private_->window[i]);
+		ok = ok && FLAC__memory_alloc_aligned_real_array(new_blocksize, &encoder->private_->windowed_signal_unaligned, &encoder->private_->windowed_signal);
+	}
+#endif
+	for(channel = 0; ok && channel < encoder->protected_->channels; channel++) {
+		for(i = 0; ok && i < 2; i++) {
+			ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize, &encoder->private_->residual_workspace_unaligned[channel][i], &encoder->private_->residual_workspace[channel][i]);
+		}
+	}
+
+
+	for(channel = 0; ok && channel < encoder->protected_->channels; channel++) {
+		for(i = 0; ok && i < 2; i++) {
+			ok = ok && FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(&encoder->private_->partitioned_rice_contents_workspace[channel][i], encoder->protected_->max_residual_partition_order);
+			ok = ok && FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(&encoder->private_->partitioned_rice_contents_workspace[channel][i], encoder->protected_->max_residual_partition_order);
+		}
+	}
+
+	for(channel = 0; ok && channel < 2; channel++) {
+		for(i = 0; ok && i < 2; i++) {
+			ok = ok && FLAC__memory_alloc_aligned_int32_array(new_blocksize, &encoder->private_->residual_workspace_mid_side_unaligned[channel][i], &encoder->private_->residual_workspace_mid_side[channel][i]);
+		}
+	}
+
+	for(channel = 0; ok && channel < 2; channel++) {
+		for(i = 0; ok && i < 2; i++) {
+			ok = ok && FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(&encoder->private_->partitioned_rice_contents_workspace_mid_side[channel][i], encoder->protected_->max_residual_partition_order);
+		}
+	}
+
+	for(i = 0; ok && i < 2; i++) {
+		ok = ok && FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(&encoder->private_->partitioned_rice_contents_extra[i], encoder->protected_->max_residual_partition_order);
+	}
+
+
+	/* the *2 is an approximation to the series 1 + 1/2 + 1/4 + ... that sums tree occupies in a flat array */
+	/*@@@ new_blocksize*2 is too pessimistic, but to fix, we need smarter logic because a smaller new_blocksize can actually increase the # of partitions; would require moving this out into a separate function, then checking its capacity against the need of the current blocksize&min/max_partition_order (and maybe predictor order) */
+	ok = ok && FLAC__memory_alloc_aligned_uint64_array(new_blocksize * 2, &encoder->private_->abs_residual_partition_sums_unaligned, &encoder->private_->abs_residual_partition_sums);
+	if(encoder->protected_->do_escape_coding)
+		ok = ok && FLAC__memory_alloc_aligned_unsigned_array(new_blocksize * 2, &encoder->private_->raw_bits_per_partition_unaligned, &encoder->private_->raw_bits_per_partition);
+
+	/* now adjust the windows if the blocksize has changed */
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	if(ok && new_blocksize != encoder->private_->input_capacity && encoder->protected_->max_lpc_order > 0) {
+		for(i = 0; ok && i < encoder->protected_->num_apodizations; i++) {
+			switch(encoder->protected_->apodizations[i].type) {
+				case FLAC__APODIZATION_BARTLETT:
+					FLAC__window_bartlett(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_BARTLETT_HANN:
+					FLAC__window_bartlett_hann(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_BLACKMAN:
+					FLAC__window_blackman(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE:
+					FLAC__window_blackman_harris_4term_92db_sidelobe(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_CONNES:
+					FLAC__window_connes(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_FLATTOP:
+					FLAC__window_flattop(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_GAUSS:
+					FLAC__window_gauss(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.gauss.stddev);
+					break;
+				case FLAC__APODIZATION_HAMMING:
+					FLAC__window_hamming(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_HANN:
+					FLAC__window_hann(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_KAISER_BESSEL:
+					FLAC__window_kaiser_bessel(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_NUTTALL:
+					FLAC__window_nuttall(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_RECTANGLE:
+					FLAC__window_rectangle(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_TRIANGLE:
+					FLAC__window_triangle(encoder->private_->window[i], new_blocksize);
+					break;
+				case FLAC__APODIZATION_TUKEY:
+					FLAC__window_tukey(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.tukey.p);
+					break;
+				case FLAC__APODIZATION_PARTIAL_TUKEY:
+					FLAC__window_partial_tukey(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.multiple_tukey.p, encoder->protected_->apodizations[i].parameters.multiple_tukey.start, encoder->protected_->apodizations[i].parameters.multiple_tukey.end);
+					break;
+				case FLAC__APODIZATION_PUNCHOUT_TUKEY:
+					FLAC__window_punchout_tukey(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.multiple_tukey.p, encoder->protected_->apodizations[i].parameters.multiple_tukey.start, encoder->protected_->apodizations[i].parameters.multiple_tukey.end);
+					break;
+				case FLAC__APODIZATION_SUBDIVIDE_TUKEY:
+					FLAC__window_tukey(encoder->private_->window[i], new_blocksize, encoder->protected_->apodizations[i].parameters.tukey.p);
+					break;
+				case FLAC__APODIZATION_WELCH:
+					FLAC__window_welch(encoder->private_->window[i], new_blocksize);
+					break;
+				default:
+					FLAC__ASSERT(0);
+					/* double protection */
+					FLAC__window_hann(encoder->private_->window[i], new_blocksize);
+					break;
+			}
+		}
+	}
+#endif
+
+	if(ok)
+		encoder->private_->input_capacity = new_blocksize;
+	else
+		encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+
+	return ok;
+}
+
+FLAC__bool write_bitbuffer_(FLAC__StreamEncoder *encoder, uint32_t samples, FLAC__bool is_last_block)
+{
+	const FLAC__byte *buffer;
+	size_t bytes;
+
+	FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(encoder->private_->frame));
+
+	if(!FLAC__bitwriter_get_buffer(encoder->private_->frame, &buffer, &bytes)) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	if(encoder->protected_->verify) {
+		encoder->private_->verify.output.data = buffer;
+		encoder->private_->verify.output.bytes = bytes;
+		if(encoder->private_->verify.state_hint == ENCODER_IN_MAGIC) {
+			encoder->private_->verify.needs_magic_hack = true;
+		}
+		else {
+			if(!FLAC__stream_decoder_process_single(encoder->private_->verify.decoder)
+			    || (!is_last_block
+				    && (FLAC__stream_encoder_get_verify_decoder_state(encoder) == FLAC__STREAM_DECODER_END_OF_STREAM))
+			    || encoder->protected_->state == FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR /* Happens when error callback was used */) {
+				FLAC__bitwriter_release_buffer(encoder->private_->frame);
+				FLAC__bitwriter_clear(encoder->private_->frame);
+				if(encoder->protected_->state != FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA)
+					encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
+				return false;
+			}
+		}
+	}
+
+	if(write_frame_(encoder, buffer, bytes, samples, is_last_block) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
+		FLAC__bitwriter_release_buffer(encoder->private_->frame);
+		FLAC__bitwriter_clear(encoder->private_->frame);
+		encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return false;
+	}
+
+	FLAC__bitwriter_release_buffer(encoder->private_->frame);
+	FLAC__bitwriter_clear(encoder->private_->frame);
+
+	if(samples > 0) {
+		encoder->private_->streaminfo.data.stream_info.min_framesize = flac_min(bytes, encoder->private_->streaminfo.data.stream_info.min_framesize);
+		encoder->private_->streaminfo.data.stream_info.max_framesize = flac_max(bytes, encoder->private_->streaminfo.data.stream_info.max_framesize);
+	}
+
+	return true;
+}
+
+FLAC__StreamEncoderWriteStatus write_frame_(FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, uint32_t samples, FLAC__bool is_last_block)
+{
+	FLAC__StreamEncoderWriteStatus status;
+	FLAC__uint64 output_position = 0;
+
+#if FLAC__HAS_OGG == 0
+	(void)is_last_block;
+#endif
+
+	/* FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED just means we didn't get the offset; no error */
+	if(encoder->private_->tell_callback && encoder->private_->tell_callback(encoder, &output_position, encoder->private_->client_data) == FLAC__STREAM_ENCODER_TELL_STATUS_ERROR) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+	}
+
+	/*
+	 * Watch for the STREAMINFO block and first SEEKTABLE block to go by and store their offsets.
+	 */
+	if(samples == 0) {
+		FLAC__MetadataType type = (buffer[0] & 0x7f);
+		if(type == FLAC__METADATA_TYPE_STREAMINFO)
+			encoder->protected_->streaminfo_offset = output_position;
+		else if(type == FLAC__METADATA_TYPE_SEEKTABLE && encoder->protected_->seektable_offset == 0)
+			encoder->protected_->seektable_offset = output_position;
+	}
+
+	/*
+	 * Mark the current seek point if hit (if audio_offset == 0 that
+	 * means we're still writing metadata and haven't hit the first
+	 * frame yet)
+	 */
+	if(0 != encoder->private_->seek_table && encoder->protected_->audio_offset > 0 && encoder->private_->seek_table->num_points > 0) {
+		const uint32_t blocksize = FLAC__stream_encoder_get_blocksize(encoder);
+		const FLAC__uint64 frame_first_sample = encoder->private_->samples_written;
+		const FLAC__uint64 frame_last_sample = frame_first_sample + (FLAC__uint64)blocksize - 1;
+		FLAC__uint64 test_sample;
+		uint32_t i;
+		for(i = encoder->private_->first_seekpoint_to_check; i < encoder->private_->seek_table->num_points; i++) {
+			test_sample = encoder->private_->seek_table->points[i].sample_number;
+			if(test_sample > frame_last_sample) {
+				break;
+			}
+			else if(test_sample >= frame_first_sample) {
+				encoder->private_->seek_table->points[i].sample_number = frame_first_sample;
+				encoder->private_->seek_table->points[i].stream_offset = output_position - encoder->protected_->audio_offset;
+				encoder->private_->seek_table->points[i].frame_samples = blocksize;
+				encoder->private_->first_seekpoint_to_check++;
+				/* DO NOT: "break;" and here's why:
+				 * The seektable template may contain more than one target
+				 * sample for any given frame; we will keep looping, generating
+				 * duplicate seekpoints for them, and we'll clean it up later,
+				 * just before writing the seektable back to the metadata.
+				 */
+			}
+			else {
+				encoder->private_->first_seekpoint_to_check++;
+			}
+		}
+	}
+
+#if FLAC__HAS_OGG
+	if(encoder->private_->is_ogg) {
+		status = FLAC__ogg_encoder_aspect_write_callback_wrapper(
+			&encoder->protected_->ogg_encoder_aspect,
+			buffer,
+			bytes,
+			samples,
+			encoder->private_->current_frame_number,
+			is_last_block,
+			(FLAC__OggEncoderAspectWriteCallbackProxy)encoder->private_->write_callback,
+			encoder,
+			encoder->private_->client_data
+		);
+	}
+	else
+#endif
+	status = encoder->private_->write_callback(encoder, buffer, bytes, samples, encoder->private_->current_frame_number, encoder->private_->client_data);
+
+	if(status == FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
+		encoder->private_->bytes_written += bytes;
+		encoder->private_->samples_written += samples;
+		/* we keep a high watermark on the number of frames written because
+		 * when the encoder goes back to write metadata, 'current_frame'
+		 * will drop back to 0.
+		 */
+		encoder->private_->frames_written = flac_max(encoder->private_->frames_written, encoder->private_->current_frame_number+1);
+	}
+	else
+		encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+
+	return status;
+}
+
+/* Gets called when the encoding process has finished so that we can update the STREAMINFO and SEEKTABLE blocks.  */
+void update_metadata_(const FLAC__StreamEncoder *encoder)
+{
+	FLAC__byte b[flac_max(6u, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)];
+	const FLAC__StreamMetadata *metadata = &encoder->private_->streaminfo;
+	FLAC__uint64 samples = metadata->data.stream_info.total_samples;
+	const uint32_t min_framesize = metadata->data.stream_info.min_framesize;
+	const uint32_t max_framesize = metadata->data.stream_info.max_framesize;
+	const uint32_t bps = metadata->data.stream_info.bits_per_sample;
+	FLAC__StreamEncoderSeekStatus seek_status;
+
+	FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO);
+
+	/* All this is based on intimate knowledge of the stream header
+	 * layout, but a change to the header format that would break this
+	 * would also break all streams encoded in the previous format.
+	 */
+
+	/*
+	 * Write MD5 signature
+	 */
+	{
+		const uint32_t md5_offset =
+			FLAC__STREAM_METADATA_HEADER_LENGTH +
+			(
+				FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN
+			) / 8;
+
+		if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + md5_offset, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
+			if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
+				encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+			return;
+		}
+		if(encoder->private_->write_callback(encoder, metadata->data.stream_info.md5sum, 16, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+			return;
+		}
+	}
+
+	/*
+	 * Write total samples
+	 */
+	{
+		const uint32_t total_samples_byte_offset =
+			FLAC__STREAM_METADATA_HEADER_LENGTH +
+			(
+				FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN
+				- 4
+			) / 8;
+		if(samples > (FLAC__U64L(1) << FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
+			samples = 0;
+
+		b[0] = ((FLAC__byte)(bps-1) << 4) | (FLAC__byte)((samples >> 32) & 0x0F);
+		b[1] = (FLAC__byte)((samples >> 24) & 0xFF);
+		b[2] = (FLAC__byte)((samples >> 16) & 0xFF);
+		b[3] = (FLAC__byte)((samples >> 8) & 0xFF);
+		b[4] = (FLAC__byte)(samples & 0xFF);
+		if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + total_samples_byte_offset, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
+			if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
+				encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+			return;
+		}
+		if(encoder->private_->write_callback(encoder, b, 5, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+			return;
+		}
+	}
+
+	/*
+	 * Write min/max framesize
+	 */
+	{
+		const uint32_t min_framesize_offset =
+			FLAC__STREAM_METADATA_HEADER_LENGTH +
+			(
+				FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN
+			) / 8;
+
+		b[0] = (FLAC__byte)((min_framesize >> 16) & 0xFF);
+		b[1] = (FLAC__byte)((min_framesize >> 8) & 0xFF);
+		b[2] = (FLAC__byte)(min_framesize & 0xFF);
+		b[3] = (FLAC__byte)((max_framesize >> 16) & 0xFF);
+		b[4] = (FLAC__byte)((max_framesize >> 8) & 0xFF);
+		b[5] = (FLAC__byte)(max_framesize & 0xFF);
+		if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->streaminfo_offset + min_framesize_offset, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
+			if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
+				encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+			return;
+		}
+		if(encoder->private_->write_callback(encoder, b, 6, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+			return;
+		}
+	}
+
+	/*
+	 * Write seektable
+	 */
+	if(0 != encoder->private_->seek_table && encoder->private_->seek_table->num_points > 0 && encoder->protected_->seektable_offset > 0) {
+		uint32_t i;
+
+		FLAC__format_seektable_sort(encoder->private_->seek_table);
+
+		FLAC__ASSERT(FLAC__format_seektable_is_legal(encoder->private_->seek_table));
+
+		if((seek_status = encoder->private_->seek_callback(encoder, encoder->protected_->seektable_offset + FLAC__STREAM_METADATA_HEADER_LENGTH, encoder->private_->client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
+			if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
+				encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+			return;
+		}
+
+		for(i = 0; i < encoder->private_->seek_table->num_points; i++) {
+			FLAC__uint64 xx;
+			uint32_t x;
+			xx = encoder->private_->seek_table->points[i].sample_number;
+			b[7] = (FLAC__byte)xx; xx >>= 8;
+			b[6] = (FLAC__byte)xx; xx >>= 8;
+			b[5] = (FLAC__byte)xx; xx >>= 8;
+			b[4] = (FLAC__byte)xx; xx >>= 8;
+			b[3] = (FLAC__byte)xx; xx >>= 8;
+			b[2] = (FLAC__byte)xx; xx >>= 8;
+			b[1] = (FLAC__byte)xx; xx >>= 8;
+			b[0] = (FLAC__byte)xx; xx >>= 8;
+			xx = encoder->private_->seek_table->points[i].stream_offset;
+			b[15] = (FLAC__byte)xx; xx >>= 8;
+			b[14] = (FLAC__byte)xx; xx >>= 8;
+			b[13] = (FLAC__byte)xx; xx >>= 8;
+			b[12] = (FLAC__byte)xx; xx >>= 8;
+			b[11] = (FLAC__byte)xx; xx >>= 8;
+			b[10] = (FLAC__byte)xx; xx >>= 8;
+			b[9] = (FLAC__byte)xx; xx >>= 8;
+			b[8] = (FLAC__byte)xx; xx >>= 8;
+			x = encoder->private_->seek_table->points[i].frame_samples;
+			b[17] = (FLAC__byte)x; x >>= 8;
+			b[16] = (FLAC__byte)x; x >>= 8;
+			if(encoder->private_->write_callback(encoder, b, 18, 0, 0, encoder->private_->client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
+				encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+				return;
+			}
+		}
+	}
+}
+
+#if FLAC__HAS_OGG
+/* Gets called when the encoding process has finished so that we can update the STREAMINFO and SEEKTABLE blocks.  */
+void update_ogg_metadata_(FLAC__StreamEncoder *encoder)
+{
+	/* the # of bytes in the 1st packet that precede the STREAMINFO */
+	static const uint32_t FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH =
+		FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH +
+		FLAC__OGG_MAPPING_MAGIC_LENGTH +
+		FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH +
+		FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH +
+		FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH +
+		FLAC__STREAM_SYNC_LENGTH
+	;
+	FLAC__byte b[flac_max(6u, FLAC__STREAM_METADATA_SEEKPOINT_LENGTH)];
+	const FLAC__StreamMetadata *metadata = &encoder->private_->streaminfo;
+	const FLAC__uint64 samples = metadata->data.stream_info.total_samples;
+	const uint32_t min_framesize = metadata->data.stream_info.min_framesize;
+	const uint32_t max_framesize = metadata->data.stream_info.max_framesize;
+	ogg_page page;
+
+	FLAC__ASSERT(metadata->type == FLAC__METADATA_TYPE_STREAMINFO);
+	FLAC__ASSERT(0 != encoder->private_->seek_callback);
+
+	/* Pre-check that client supports seeking, since we don't want the
+	 * ogg_helper code to ever have to deal with this condition.
+	 */
+	if(encoder->private_->seek_callback(encoder, 0, encoder->private_->client_data) == FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED)
+		return;
+
+	/* All this is based on intimate knowledge of the stream header
+	 * layout, but a change to the header format that would break this
+	 * would also break all streams encoded in the previous format.
+	 */
+
+	/**
+	 ** Write STREAMINFO stats
+	 **/
+	simple_ogg_page__init(&page);
+	if(!simple_ogg_page__get_at(encoder, encoder->protected_->streaminfo_offset, &page, encoder->private_->seek_callback, encoder->private_->read_callback, encoder->private_->client_data)) {
+		simple_ogg_page__clear(&page);
+		return; /* state already set */
+	}
+
+	/*
+	 * Write MD5 signature
+	 */
+	{
+		const uint32_t md5_offset =
+			FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH +
+			FLAC__STREAM_METADATA_HEADER_LENGTH +
+			(
+				FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN
+			) / 8;
+
+		if(md5_offset + 16 > (uint32_t)page.body_len) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+			simple_ogg_page__clear(&page);
+			return;
+		}
+		memcpy(page.body + md5_offset, metadata->data.stream_info.md5sum, 16);
+	}
+
+	/*
+	 * Write total samples
+	 */
+	{
+		const uint32_t total_samples_byte_offset =
+			FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH +
+			FLAC__STREAM_METADATA_HEADER_LENGTH +
+			(
+				FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN
+				- 4
+			) / 8;
+
+		if(total_samples_byte_offset + 5 > (uint32_t)page.body_len) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+			simple_ogg_page__clear(&page);
+			return;
+		}
+		b[0] = (FLAC__byte)page.body[total_samples_byte_offset] & 0xF0;
+		b[0] |= (FLAC__byte)((samples >> 32) & 0x0F);
+		b[1] = (FLAC__byte)((samples >> 24) & 0xFF);
+		b[2] = (FLAC__byte)((samples >> 16) & 0xFF);
+		b[3] = (FLAC__byte)((samples >> 8) & 0xFF);
+		b[4] = (FLAC__byte)(samples & 0xFF);
+		memcpy(page.body + total_samples_byte_offset, b, 5);
+	}
+
+	/*
+	 * Write min/max framesize
+	 */
+	{
+		const uint32_t min_framesize_offset =
+			FIRST_OGG_PACKET_STREAMINFO_PREFIX_LENGTH +
+			FLAC__STREAM_METADATA_HEADER_LENGTH +
+			(
+				FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN +
+				FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN
+			) / 8;
+
+		if(min_framesize_offset + 6 > (uint32_t)page.body_len) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+			simple_ogg_page__clear(&page);
+			return;
+		}
+		b[0] = (FLAC__byte)((min_framesize >> 16) & 0xFF);
+		b[1] = (FLAC__byte)((min_framesize >> 8) & 0xFF);
+		b[2] = (FLAC__byte)(min_framesize & 0xFF);
+		b[3] = (FLAC__byte)((max_framesize >> 16) & 0xFF);
+		b[4] = (FLAC__byte)((max_framesize >> 8) & 0xFF);
+		b[5] = (FLAC__byte)(max_framesize & 0xFF);
+		memcpy(page.body + min_framesize_offset, b, 6);
+	}
+	if(!simple_ogg_page__set_at(encoder, encoder->protected_->streaminfo_offset, &page, encoder->private_->seek_callback, encoder->private_->write_callback, encoder->private_->client_data)) {
+		simple_ogg_page__clear(&page);
+		return; /* state already set */
+	}
+	simple_ogg_page__clear(&page);
+
+	/*
+	 * Write seektable
+	 */
+	if(0 != encoder->private_->seek_table && encoder->private_->seek_table->num_points > 0 && encoder->protected_->seektable_offset > 0) {
+		uint32_t i;
+		FLAC__byte *p;
+
+		FLAC__format_seektable_sort(encoder->private_->seek_table);
+
+		FLAC__ASSERT(FLAC__format_seektable_is_legal(encoder->private_->seek_table));
+
+		simple_ogg_page__init(&page);
+		if(!simple_ogg_page__get_at(encoder, encoder->protected_->seektable_offset, &page, encoder->private_->seek_callback, encoder->private_->read_callback, encoder->private_->client_data)) {
+			simple_ogg_page__clear(&page);
+			return; /* state already set */
+		}
+
+		if((FLAC__STREAM_METADATA_HEADER_LENGTH + 18*encoder->private_->seek_table->num_points) != (uint32_t)page.body_len) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+			simple_ogg_page__clear(&page);
+			return;
+		}
+
+		for(i = 0, p = page.body + FLAC__STREAM_METADATA_HEADER_LENGTH; i < encoder->private_->seek_table->num_points; i++, p += 18) {
+			FLAC__uint64 xx;
+			uint32_t x;
+			xx = encoder->private_->seek_table->points[i].sample_number;
+			b[7] = (FLAC__byte)xx; xx >>= 8;
+			b[6] = (FLAC__byte)xx; xx >>= 8;
+			b[5] = (FLAC__byte)xx; xx >>= 8;
+			b[4] = (FLAC__byte)xx; xx >>= 8;
+			b[3] = (FLAC__byte)xx; xx >>= 8;
+			b[2] = (FLAC__byte)xx; xx >>= 8;
+			b[1] = (FLAC__byte)xx; xx >>= 8;
+			b[0] = (FLAC__byte)xx; xx >>= 8;
+			xx = encoder->private_->seek_table->points[i].stream_offset;
+			b[15] = (FLAC__byte)xx; xx >>= 8;
+			b[14] = (FLAC__byte)xx; xx >>= 8;
+			b[13] = (FLAC__byte)xx; xx >>= 8;
+			b[12] = (FLAC__byte)xx; xx >>= 8;
+			b[11] = (FLAC__byte)xx; xx >>= 8;
+			b[10] = (FLAC__byte)xx; xx >>= 8;
+			b[9] = (FLAC__byte)xx; xx >>= 8;
+			b[8] = (FLAC__byte)xx; xx >>= 8;
+			x = encoder->private_->seek_table->points[i].frame_samples;
+			b[17] = (FLAC__byte)x; x >>= 8;
+			b[16] = (FLAC__byte)x; x >>= 8;
+			memcpy(p, b, 18);
+		}
+
+		if(!simple_ogg_page__set_at(encoder, encoder->protected_->seektable_offset, &page, encoder->private_->seek_callback, encoder->private_->write_callback, encoder->private_->client_data)) {
+			simple_ogg_page__clear(&page);
+			return; /* state already set */
+		}
+		simple_ogg_page__clear(&page);
+	}
+}
+#endif
+
+FLAC__bool process_frame_(FLAC__StreamEncoder *encoder, FLAC__bool is_last_block)
+{
+	FLAC__uint16 crc;
+	FLAC__ASSERT(encoder->protected_->state == FLAC__STREAM_ENCODER_OK);
+
+	/*
+	 * Accumulate raw signal to the MD5 signature
+	 */
+	if(encoder->protected_->do_md5 && !FLAC__MD5Accumulate(&encoder->private_->md5context, (const FLAC__int32 * const *)encoder->private_->integer_signal, encoder->protected_->channels, encoder->protected_->blocksize, (encoder->protected_->bits_per_sample+7) / 8)) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	/*
+	 * Process the frame header and subframes into the frame bitbuffer
+	 */
+	if(!process_subframes_(encoder)) {
+		/* the above function sets the state for us in case of an error */
+		return false;
+	}
+
+	/*
+	 * Zero-pad the frame to a byte_boundary
+	 */
+	if(!FLAC__bitwriter_zero_pad_to_byte_boundary(encoder->private_->frame)) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	/*
+	 * CRC-16 the whole thing
+	 */
+	FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(encoder->private_->frame));
+	if(
+		!FLAC__bitwriter_get_write_crc16(encoder->private_->frame, &crc) ||
+		!FLAC__bitwriter_write_raw_uint32(encoder->private_->frame, crc, FLAC__FRAME_FOOTER_CRC_LEN)
+	) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	/*
+	 * Write it
+	 */
+	if(!write_bitbuffer_(encoder, encoder->protected_->blocksize, is_last_block)) {
+		/* the above function sets the state for us in case of an error */
+		return false;
+	}
+
+	/*
+	 * Get ready for the next frame
+	 */
+	encoder->private_->current_sample_number = 0;
+	encoder->private_->current_frame_number++;
+	encoder->private_->streaminfo.data.stream_info.total_samples += (FLAC__uint64)encoder->protected_->blocksize;
+
+	return true;
+}
+
+FLAC__bool process_subframes_(FLAC__StreamEncoder *encoder)
+{
+	FLAC__FrameHeader frame_header;
+	uint32_t channel, min_partition_order = encoder->protected_->min_residual_partition_order, max_partition_order;
+	FLAC__bool do_independent, do_mid_side, backup_disable_constant_subframes = encoder->private_->disable_constant_subframes, all_subframes_constant = true;
+
+	/*
+	 * Calculate the min,max Rice partition orders
+	 */
+
+	max_partition_order = FLAC__format_get_max_rice_partition_order_from_blocksize(encoder->protected_->blocksize);
+	max_partition_order = flac_min(max_partition_order, encoder->protected_->max_residual_partition_order);
+	min_partition_order = flac_min(min_partition_order, max_partition_order);
+
+	/*
+	 * Setup the frame
+	 */
+	frame_header.blocksize = encoder->protected_->blocksize;
+	frame_header.sample_rate = encoder->protected_->sample_rate;
+	frame_header.channels = encoder->protected_->channels;
+	frame_header.channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT; /* the default unless the encoder determines otherwise */
+	frame_header.bits_per_sample = encoder->protected_->bits_per_sample;
+	frame_header.number_type = FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER;
+	frame_header.number.frame_number = encoder->private_->current_frame_number;
+
+	/*
+	 * Figure out what channel assignments to try
+	 */
+	if(encoder->protected_->do_mid_side_stereo) {
+		if(encoder->protected_->loose_mid_side_stereo) {
+			if(encoder->private_->loose_mid_side_stereo_frame_count == 0) {
+				do_independent = true;
+				do_mid_side = true;
+			}
+			else {
+				do_independent = (encoder->private_->last_channel_assignment == FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT);
+				do_mid_side = !do_independent;
+			}
+		}
+		else {
+			do_independent = true;
+			do_mid_side = true;
+		}
+	}
+	else {
+		do_independent = true;
+		do_mid_side = false;
+	}
+
+	FLAC__ASSERT(do_independent || do_mid_side);
+
+	/*
+	 * Check for wasted bits; set effective bps for each subframe
+	 */
+	if(do_independent) {
+		for(channel = 0; channel < encoder->protected_->channels; channel++) {
+			uint32_t w = get_wasted_bits_(encoder->private_->integer_signal[channel], encoder->protected_->blocksize);
+			if (w > encoder->protected_->bits_per_sample) {
+				w = encoder->protected_->bits_per_sample;
+			}
+			encoder->private_->subframe_workspace[channel][0].wasted_bits = encoder->private_->subframe_workspace[channel][1].wasted_bits = w;
+			encoder->private_->subframe_bps[channel] = encoder->protected_->bits_per_sample - w;
+		}
+	}
+	if(do_mid_side) {
+		FLAC__ASSERT(encoder->protected_->channels == 2);
+		for(channel = 0; channel < 2; channel++) {
+			uint32_t w;
+			if(encoder->protected_->bits_per_sample < 32 || channel == 0)
+				w = get_wasted_bits_(encoder->private_->integer_signal_mid_side[channel], encoder->protected_->blocksize);
+			else
+				w = get_wasted_bits_wide_(encoder->private_->integer_signal_33bit_side, encoder->private_->integer_signal_mid_side[channel], encoder->protected_->blocksize);
+
+			if (w > encoder->protected_->bits_per_sample) {
+				w = encoder->protected_->bits_per_sample;
+			}
+			encoder->private_->subframe_workspace_mid_side[channel][0].wasted_bits = encoder->private_->subframe_workspace_mid_side[channel][1].wasted_bits = w;
+			encoder->private_->subframe_bps_mid_side[channel] = encoder->protected_->bits_per_sample - w + (channel==0? 0:1);
+		}
+	}
+
+	/*
+	 * First do a normal encoding pass of each independent channel
+	 */
+	if(do_independent) {
+		for(channel = 0; channel < encoder->protected_->channels; channel++) {
+			if(encoder->protected_->limit_min_bitrate && all_subframes_constant && (channel + 1) == encoder->protected_->channels){
+				/* This frame contains only constant subframes at this point.
+				 * To prevent the frame from becoming too small, make sure
+				 * the last subframe isn't constant */
+				encoder->private_->disable_constant_subframes = true;
+			}
+			if(!
+				process_subframe_(
+					encoder,
+					min_partition_order,
+					max_partition_order,
+					&frame_header,
+					encoder->private_->subframe_bps[channel],
+					encoder->private_->integer_signal[channel],
+					encoder->private_->subframe_workspace_ptr[channel],
+					encoder->private_->partitioned_rice_contents_workspace_ptr[channel],
+					encoder->private_->residual_workspace[channel],
+					encoder->private_->best_subframe+channel,
+					encoder->private_->best_subframe_bits+channel
+				)
+			)
+				return false;
+			if(encoder->private_->subframe_workspace[channel][encoder->private_->best_subframe[channel]].type != FLAC__SUBFRAME_TYPE_CONSTANT)
+				all_subframes_constant = false;
+		}
+	}
+
+	/*
+	 * Now do mid and side channels if requested
+	 */
+	if(do_mid_side) {
+		FLAC__ASSERT(encoder->protected_->channels == 2);
+
+		for(channel = 0; channel < 2; channel++) {
+			void *integer_signal_;
+			if(encoder->private_->subframe_bps_mid_side[channel] <= 32)
+				integer_signal_ = encoder->private_->integer_signal_mid_side[channel];
+			else
+				integer_signal_ = encoder->private_->integer_signal_33bit_side;
+			if(!
+				process_subframe_(
+					encoder,
+					min_partition_order,
+					max_partition_order,
+					&frame_header,
+					encoder->private_->subframe_bps_mid_side[channel],
+					integer_signal_,
+					encoder->private_->subframe_workspace_ptr_mid_side[channel],
+					encoder->private_->partitioned_rice_contents_workspace_ptr_mid_side[channel],
+					encoder->private_->residual_workspace_mid_side[channel],
+					encoder->private_->best_subframe_mid_side+channel,
+					encoder->private_->best_subframe_bits_mid_side+channel
+				)
+			)
+				return false;
+		}
+	}
+
+	/*
+	 * Compose the frame bitbuffer
+	 */
+	if(do_mid_side) {
+		uint32_t left_bps = 0, right_bps = 0; /* initialized only to prevent superfluous compiler warning */
+		FLAC__Subframe *left_subframe = 0, *right_subframe = 0; /* initialized only to prevent superfluous compiler warning */
+		FLAC__ChannelAssignment channel_assignment;
+
+		FLAC__ASSERT(encoder->protected_->channels == 2);
+
+		if(encoder->protected_->loose_mid_side_stereo && encoder->private_->loose_mid_side_stereo_frame_count > 0) {
+			channel_assignment = (encoder->private_->last_channel_assignment == FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT? FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT : FLAC__CHANNEL_ASSIGNMENT_MID_SIDE);
+		}
+		else {
+			uint32_t bits[4]; /* WATCHOUT - indexed by FLAC__ChannelAssignment */
+			uint32_t min_bits;
+			int ca;
+
+			FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT == 0);
+			FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE   == 1);
+			FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE  == 2);
+			FLAC__ASSERT(FLAC__CHANNEL_ASSIGNMENT_MID_SIDE    == 3);
+			FLAC__ASSERT(do_independent && do_mid_side);
+
+			/* We have to figure out which channel assignent results in the smallest frame */
+			bits[FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT] = encoder->private_->best_subframe_bits         [0] + encoder->private_->best_subframe_bits         [1];
+			bits[FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE  ] = encoder->private_->best_subframe_bits         [0] + encoder->private_->best_subframe_bits_mid_side[1];
+			bits[FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE ] = encoder->private_->best_subframe_bits         [1] + encoder->private_->best_subframe_bits_mid_side[1];
+			bits[FLAC__CHANNEL_ASSIGNMENT_MID_SIDE   ] = encoder->private_->best_subframe_bits_mid_side[0] + encoder->private_->best_subframe_bits_mid_side[1];
+
+			channel_assignment = FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT;
+			min_bits = bits[channel_assignment];
+
+			/* When doing loose mid-side stereo, ignore left-side
+			 * and right-side options */
+			ca = encoder->protected_->loose_mid_side_stereo ? 3 : 1;
+			for( ; ca <= 3; ca++) {
+				if(bits[ca] < min_bits) {
+					min_bits = bits[ca];
+					channel_assignment = (FLAC__ChannelAssignment)ca;
+				}
+			}
+		}
+
+		frame_header.channel_assignment = channel_assignment;
+
+		if(!FLAC__frame_add_header(&frame_header, encoder->private_->frame)) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
+			return false;
+		}
+
+		switch(channel_assignment) {
+			case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
+				left_subframe  = &encoder->private_->subframe_workspace         [0][encoder->private_->best_subframe         [0]];
+				right_subframe = &encoder->private_->subframe_workspace         [1][encoder->private_->best_subframe         [1]];
+				break;
+			case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
+				left_subframe  = &encoder->private_->subframe_workspace         [0][encoder->private_->best_subframe         [0]];
+				right_subframe = &encoder->private_->subframe_workspace_mid_side[1][encoder->private_->best_subframe_mid_side[1]];
+				break;
+			case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
+				left_subframe  = &encoder->private_->subframe_workspace_mid_side[1][encoder->private_->best_subframe_mid_side[1]];
+				right_subframe = &encoder->private_->subframe_workspace         [1][encoder->private_->best_subframe         [1]];
+				break;
+			case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
+				left_subframe  = &encoder->private_->subframe_workspace_mid_side[0][encoder->private_->best_subframe_mid_side[0]];
+				right_subframe = &encoder->private_->subframe_workspace_mid_side[1][encoder->private_->best_subframe_mid_side[1]];
+				break;
+			default:
+				FLAC__ASSERT(0);
+		}
+
+		switch(channel_assignment) {
+			case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
+				left_bps  = encoder->private_->subframe_bps         [0];
+				right_bps = encoder->private_->subframe_bps         [1];
+				break;
+			case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
+				left_bps  = encoder->private_->subframe_bps         [0];
+				right_bps = encoder->private_->subframe_bps_mid_side[1];
+				break;
+			case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
+				left_bps  = encoder->private_->subframe_bps_mid_side[1];
+				right_bps = encoder->private_->subframe_bps         [1];
+				break;
+			case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
+				left_bps  = encoder->private_->subframe_bps_mid_side[0];
+				right_bps = encoder->private_->subframe_bps_mid_side[1];
+				break;
+			default:
+				FLAC__ASSERT(0);
+		}
+
+		/* note that encoder_add_subframe_ sets the state for us in case of an error */
+		if(!add_subframe_(encoder, frame_header.blocksize, left_bps , left_subframe , encoder->private_->frame))
+			return false;
+		if(!add_subframe_(encoder, frame_header.blocksize, right_bps, right_subframe, encoder->private_->frame))
+			return false;
+	}
+	else {
+		if(!FLAC__frame_add_header(&frame_header, encoder->private_->frame)) {
+			encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
+			return false;
+		}
+
+		for(channel = 0; channel < encoder->protected_->channels; channel++) {
+			if(!add_subframe_(encoder, frame_header.blocksize, encoder->private_->subframe_bps[channel], &encoder->private_->subframe_workspace[channel][encoder->private_->best_subframe[channel]], encoder->private_->frame)) {
+				/* the above function sets the state for us in case of an error */
+				return false;
+			}
+		}
+	}
+
+	if(encoder->protected_->loose_mid_side_stereo) {
+		encoder->private_->loose_mid_side_stereo_frame_count++;
+		if(encoder->private_->loose_mid_side_stereo_frame_count >= encoder->private_->loose_mid_side_stereo_frames)
+			encoder->private_->loose_mid_side_stereo_frame_count = 0;
+	}
+
+	encoder->private_->last_channel_assignment = frame_header.channel_assignment;
+	encoder->private_->disable_constant_subframes = backup_disable_constant_subframes;
+
+	return true;
+}
+
+static inline void set_next_subdivide_tukey(FLAC__int32 parts, uint32_t * apodizations, uint32_t * current_depth, uint32_t * current_part){
+	// current_part is interleaved: even are partial, odd are punchout
+	if(*current_depth == 2){
+		// For depth 2, we only do partial, no punchout as that is almost redundant
+		if(*current_part == 0){
+			*current_part = 2;
+		}else{ /* *current_path == 2 */
+			*current_part = 0;
+			(*current_depth)++;
+		}
+	}else if((*current_part) < (2*(*current_depth)-1)){
+		(*current_part)++;
+	}else{ /* (*current_part) >= (2*(*current_depth)-1) */
+		*current_part = 0;
+		(*current_depth)++;
+	}
+
+	/* Now check if we are done with this SUBDIVIDE_TUKEY apodization */
+	if(*current_depth > (uint32_t) parts){
+		(*apodizations)++;
+		*current_depth = 1;
+		*current_part = 0;
+	}
+}
+
+FLAC__bool process_subframe_(
+	FLAC__StreamEncoder *encoder,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order,
+	const FLAC__FrameHeader *frame_header,
+	uint32_t subframe_bps,
+	const void *integer_signal,
+	FLAC__Subframe *subframe[2],
+	FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents[2],
+	FLAC__int32 *residual[2],
+	uint32_t *best_subframe,
+	uint32_t *best_bits
+)
+{
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	float fixed_residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1];
+#else
+	FLAC__fixedpoint fixed_residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1];
+#endif
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	double lpc_residual_bits_per_sample;
+	double autoc[FLAC__MAX_LPC_ORDER+1]; /* WATCHOUT: the size is important even though encoder->protected_->max_lpc_order might be less; some asm and x86 intrinsic routines need all the space */
+	double autoc_root[FLAC__MAX_LPC_ORDER+1]; /* This is for subdivide_tukey apodization */
+	double lpc_error[FLAC__MAX_LPC_ORDER];
+	uint32_t min_lpc_order, max_lpc_order, lpc_order;
+	uint32_t min_qlp_coeff_precision, max_qlp_coeff_precision, qlp_coeff_precision;
+#endif
+	uint32_t min_fixed_order, max_fixed_order, guess_fixed_order, fixed_order;
+	uint32_t _candidate_bits, _best_bits;
+	uint32_t _best_subframe;
+	/* only use RICE2 partitions if stream bps > 16 */
+	const uint32_t rice_parameter_limit = FLAC__stream_encoder_get_bits_per_sample(encoder) > 16? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
+
+	FLAC__ASSERT(frame_header->blocksize > 0);
+
+	/* verbatim subframe is the baseline against which we measure other compressed subframes */
+	_best_subframe = 0;
+	if(encoder->private_->disable_verbatim_subframes && frame_header->blocksize >= FLAC__MAX_FIXED_ORDER)
+		_best_bits = UINT32_MAX;
+	else
+		_best_bits = evaluate_verbatim_subframe_(encoder, integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
+	*best_bits = _best_bits;
+
+	if(frame_header->blocksize > FLAC__MAX_FIXED_ORDER) {
+		uint32_t signal_is_constant = false;
+		/* The next formula determines when to use a 64-bit accumulator
+		 * for the error of a fixed predictor, and when a 32-bit one. As
+		 * the error of a 4th order predictor for a given sample is the
+		 * sum of 17 sample values (1+4+6+4+1) and there are blocksize -
+		 * order error values to be summed, the maximum total error is
+		 * maximum_sample_value * (blocksize - order) * 17. As ilog2(x)
+		 * calculates floor(2log(x)), the result must be 31 or lower
+		 */
+		if(subframe_bps < 28){
+			if(subframe_bps + FLAC__bitmath_ilog2((frame_header->blocksize-FLAC__MAX_FIXED_ORDER)*17) < 32)
+				guess_fixed_order = encoder->private_->local_fixed_compute_best_predictor(((FLAC__int32 *)integer_signal)+FLAC__MAX_FIXED_ORDER, frame_header->blocksize-FLAC__MAX_FIXED_ORDER, fixed_residual_bits_per_sample);
+			else
+				guess_fixed_order = encoder->private_->local_fixed_compute_best_predictor_wide(((FLAC__int32 *)integer_signal)+FLAC__MAX_FIXED_ORDER, frame_header->blocksize-FLAC__MAX_FIXED_ORDER, fixed_residual_bits_per_sample);
+		}
+		else
+			if(subframe_bps <= 32)
+				guess_fixed_order = FLAC__fixed_compute_best_predictor_limit_residual(((FLAC__int32 *)integer_signal),frame_header->blocksize, fixed_residual_bits_per_sample);
+			else
+				guess_fixed_order = FLAC__fixed_compute_best_predictor_limit_residual_33bit(((FLAC__int64 *)integer_signal),frame_header->blocksize, fixed_residual_bits_per_sample);
+
+		/* check for constant subframe */
+		if(
+			!encoder->private_->disable_constant_subframes &&
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+			fixed_residual_bits_per_sample[1] == 0.0
+#else
+			fixed_residual_bits_per_sample[1] == FLAC__FP_ZERO
+#endif
+		) {
+			/* the above means it's possible all samples are the same value; now double-check it: */
+			uint32_t i;
+			signal_is_constant = true;
+			if(subframe_bps <= 32){
+				const FLAC__int32 *integer_signal_ = integer_signal;
+				for(i = 1; i < frame_header->blocksize; i++) {
+					if(integer_signal_[0] != integer_signal_[i]) {
+						signal_is_constant = false;
+						break;
+					}
+				}
+			}
+			else {
+				const FLAC__int64 *integer_signal_ = integer_signal;
+				for(i = 1; i < frame_header->blocksize; i++) {
+					if(integer_signal_[0] != integer_signal_[i]) {
+						signal_is_constant = false;
+						break;
+					}
+				}
+			}
+		}
+		if(signal_is_constant) {
+			if(subframe_bps <= 32)
+				_candidate_bits = evaluate_constant_subframe_(encoder, ((FLAC__int32 *)integer_signal)[0], frame_header->blocksize, subframe_bps, subframe[!_best_subframe]);
+			else
+				_candidate_bits = evaluate_constant_subframe_(encoder, ((FLAC__int64 *)integer_signal)[0], frame_header->blocksize, subframe_bps, subframe[!_best_subframe]);
+
+			if(_candidate_bits < _best_bits) {
+				_best_subframe = !_best_subframe;
+				_best_bits = _candidate_bits;
+			}
+		}
+		else {
+			if(!encoder->private_->disable_fixed_subframes || (encoder->protected_->max_lpc_order == 0 && _best_bits == UINT_MAX)) {
+				/* encode fixed */
+				if(encoder->protected_->do_exhaustive_model_search) {
+					min_fixed_order = 0;
+					max_fixed_order = FLAC__MAX_FIXED_ORDER;
+				}
+				else {
+					min_fixed_order = max_fixed_order = guess_fixed_order;
+				}
+				if(max_fixed_order >= frame_header->blocksize)
+					max_fixed_order = frame_header->blocksize - 1;
+				for(fixed_order = min_fixed_order; fixed_order <= max_fixed_order; fixed_order++) {
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+					if(fixed_residual_bits_per_sample[fixed_order] >= (float)subframe_bps)
+						continue; /* don't even try */
+#else
+					if(FLAC__fixedpoint_trunc(fixed_residual_bits_per_sample[fixed_order]) >= (int)subframe_bps)
+						continue; /* don't even try */
+#endif
+					_candidate_bits =
+						evaluate_fixed_subframe_(
+							encoder,
+							integer_signal,
+							residual[!_best_subframe],
+							encoder->private_->abs_residual_partition_sums,
+							encoder->private_->raw_bits_per_partition,
+							frame_header->blocksize,
+							subframe_bps,
+							fixed_order,
+							rice_parameter_limit,
+							min_partition_order,
+							max_partition_order,
+							encoder->protected_->do_escape_coding,
+							encoder->protected_->rice_parameter_search_dist,
+							subframe[!_best_subframe],
+							partitioned_rice_contents[!_best_subframe]
+						);
+					if(_candidate_bits < _best_bits) {
+						_best_subframe = !_best_subframe;
+						_best_bits = _candidate_bits;
+					}
+				}
+			}
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+			/* encode lpc */
+			if(encoder->protected_->max_lpc_order > 0) {
+				if(encoder->protected_->max_lpc_order >= frame_header->blocksize)
+					max_lpc_order = frame_header->blocksize-1;
+				else
+					max_lpc_order = encoder->protected_->max_lpc_order;
+				if(max_lpc_order > 0) {
+					uint32_t a, b = 1, c = 0;
+					for (a = 0; a < encoder->protected_->num_apodizations;) {
+						uint32_t max_lpc_order_this_apodization = max_lpc_order;
+						if(b == 1){
+							/* window full subblock */
+							if(subframe_bps <= 32)
+								FLAC__lpc_window_data(integer_signal, encoder->private_->window[a], encoder->private_->windowed_signal, frame_header->blocksize);
+							else
+								FLAC__lpc_window_data_wide(integer_signal, encoder->private_->window[a], encoder->private_->windowed_signal, frame_header->blocksize);
+							encoder->private_->local_lpc_compute_autocorrelation(encoder->private_->windowed_signal, frame_header->blocksize, max_lpc_order_this_apodization+1, autoc);
+							if(encoder->protected_->apodizations[a].type == FLAC__APODIZATION_SUBDIVIDE_TUKEY){
+								for(uint32_t i = 0; i < max_lpc_order_this_apodization; i++)
+									autoc_root[i] = autoc[i];
+								b++;
+							}else{
+								a++;
+							}
+						}
+						else {
+							/* window part of subblock */
+							if(max_lpc_order_this_apodization >= frame_header->blocksize/b) {
+								max_lpc_order_this_apodization = frame_header->blocksize/b - 1;
+								if(frame_header->blocksize/b > 0)
+									max_lpc_order_this_apodization = frame_header->blocksize/b - 1;
+								else {
+									set_next_subdivide_tukey(encoder->protected_->apodizations[a].parameters.subdivide_tukey.parts, &a, &b, &c);
+									continue;
+								}
+							}
+							if(!(c % 2)){
+								/* on even c, evaluate the (c/2)th partial window of size blocksize/b  */
+								if(subframe_bps <= 32)
+									FLAC__lpc_window_data_partial(integer_signal, encoder->private_->window[a], encoder->private_->windowed_signal, frame_header->blocksize, frame_header->blocksize/b/2, (c/2*frame_header->blocksize)/b);
+								else
+									FLAC__lpc_window_data_partial(integer_signal, encoder->private_->window[a], encoder->private_->windowed_signal, frame_header->blocksize, frame_header->blocksize/b/2, (c/2*frame_header->blocksize)/b);
+								encoder->private_->local_lpc_compute_autocorrelation(encoder->private_->windowed_signal, frame_header->blocksize/b, max_lpc_order_this_apodization+1, autoc);
+							}else{
+								/* on uneven c, evaluate the root window (over the whole block) minus the previous partial window
+								 * similar to tukey_punchout apodization but more efficient	*/
+								for(uint32_t i = 0; i < max_lpc_order_this_apodization; i++)
+									autoc[i] = autoc_root[i] - autoc[i];
+							}
+							/* Next function sets a, b and c appropriate for next iteration */
+							set_next_subdivide_tukey(encoder->protected_->apodizations[a].parameters.subdivide_tukey.parts, &a, &b, &c);
+						}
+
+						/* if autoc[0] == 0.0, the signal is constant and we usually won't get here, but it can happen */
+						if(autoc[0] != 0.0) {
+							FLAC__lpc_compute_lp_coefficients(autoc, &max_lpc_order_this_apodization, encoder->private_->lp_coeff, lpc_error);
+							if(encoder->protected_->do_exhaustive_model_search) {
+								min_lpc_order = 1;
+							}
+							else {
+								const uint32_t guess_lpc_order =
+									FLAC__lpc_compute_best_order(
+										lpc_error,
+										max_lpc_order_this_apodization,
+										frame_header->blocksize,
+										subframe_bps + (
+											encoder->protected_->do_qlp_coeff_prec_search?
+												FLAC__MIN_QLP_COEFF_PRECISION : /* have to guess; use the min possible size to avoid accidentally favoring lower orders */
+												encoder->protected_->qlp_coeff_precision
+										)
+									);
+								min_lpc_order = max_lpc_order_this_apodization = guess_lpc_order;
+							}
+							if(max_lpc_order_this_apodization >= frame_header->blocksize)
+								max_lpc_order_this_apodization = frame_header->blocksize - 1;
+							for(lpc_order = min_lpc_order; lpc_order <= max_lpc_order_this_apodization; lpc_order++) {
+								lpc_residual_bits_per_sample = FLAC__lpc_compute_expected_bits_per_residual_sample(lpc_error[lpc_order-1], frame_header->blocksize-lpc_order);
+								if(lpc_residual_bits_per_sample >= (double)subframe_bps)
+									continue; /* don't even try */
+								if(encoder->protected_->do_qlp_coeff_prec_search) {
+									min_qlp_coeff_precision = FLAC__MIN_QLP_COEFF_PRECISION;
+									/* try to keep qlp coeff precision such that only 32-bit math is required for decode of <=16bps(+1bps for side channel) streams */
+									if(subframe_bps <= 17) {
+										max_qlp_coeff_precision = flac_min(32 - subframe_bps - FLAC__bitmath_ilog2(lpc_order), FLAC__MAX_QLP_COEFF_PRECISION);
+										max_qlp_coeff_precision = flac_max(max_qlp_coeff_precision, min_qlp_coeff_precision);
+									}
+									else
+										max_qlp_coeff_precision = FLAC__MAX_QLP_COEFF_PRECISION;
+								}
+								else {
+									min_qlp_coeff_precision = max_qlp_coeff_precision = encoder->protected_->qlp_coeff_precision;
+								}
+								for(qlp_coeff_precision = min_qlp_coeff_precision; qlp_coeff_precision <= max_qlp_coeff_precision; qlp_coeff_precision++) {
+									_candidate_bits =
+										evaluate_lpc_subframe_(
+											encoder,
+											integer_signal,
+											residual[!_best_subframe],
+											encoder->private_->abs_residual_partition_sums,
+											encoder->private_->raw_bits_per_partition,
+											encoder->private_->lp_coeff[lpc_order-1],
+											frame_header->blocksize,
+											subframe_bps,
+											lpc_order,
+											qlp_coeff_precision,
+											rice_parameter_limit,
+											min_partition_order,
+											max_partition_order,
+											encoder->protected_->do_escape_coding,
+											encoder->protected_->rice_parameter_search_dist,
+											subframe[!_best_subframe],
+											partitioned_rice_contents[!_best_subframe]
+										);
+									if(_candidate_bits > 0) { /* if == 0, there was a problem quantizing the lpcoeffs */
+										if(_candidate_bits < _best_bits) {
+											_best_subframe = !_best_subframe;
+											_best_bits = _candidate_bits;
+										}
+									}
+								}
+							}
+						}
+					}
+				}
+			}
+#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
+		}
+	}
+
+	/* under rare circumstances this can happen when all but lpc subframe types are disabled: */
+	if(_best_bits == UINT32_MAX) {
+		FLAC__ASSERT(_best_subframe == 0);
+		_best_bits = evaluate_verbatim_subframe_(encoder, integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
+	}
+
+	*best_subframe = _best_subframe;
+	*best_bits = _best_bits;
+
+	return true;
+}
+
+FLAC__bool add_subframe_(
+	FLAC__StreamEncoder *encoder,
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	const FLAC__Subframe *subframe,
+	FLAC__BitWriter *frame
+)
+{
+	switch(subframe->type) {
+		case FLAC__SUBFRAME_TYPE_CONSTANT:
+			if(!FLAC__subframe_add_constant(&(subframe->data.constant), subframe_bps, subframe->wasted_bits, frame)) {
+				encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
+				return false;
+			}
+			break;
+		case FLAC__SUBFRAME_TYPE_FIXED:
+			if(!FLAC__subframe_add_fixed(&(subframe->data.fixed), blocksize - subframe->data.fixed.order, subframe_bps, subframe->wasted_bits, frame)) {
+				encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
+				return false;
+			}
+			break;
+		case FLAC__SUBFRAME_TYPE_LPC:
+			if(!FLAC__subframe_add_lpc(&(subframe->data.lpc), blocksize - subframe->data.lpc.order, subframe_bps, subframe->wasted_bits, frame)) {
+				encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
+				return false;
+			}
+			break;
+		case FLAC__SUBFRAME_TYPE_VERBATIM:
+			if(!FLAC__subframe_add_verbatim(&(subframe->data.verbatim), blocksize, subframe_bps, subframe->wasted_bits, frame)) {
+				encoder->protected_->state = FLAC__STREAM_ENCODER_FRAMING_ERROR;
+				return false;
+			}
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+
+	return true;
+}
+
+#define SPOTCHECK_ESTIMATE 0
+#if SPOTCHECK_ESTIMATE
+static void spotcheck_subframe_estimate_(
+	FLAC__StreamEncoder *encoder,
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	const FLAC__Subframe *subframe,
+	uint32_t estimate
+)
+{
+	FLAC__bool ret;
+	FLAC__BitWriter *frame = FLAC__bitwriter_new();
+	if(frame == 0) {
+		fprintf(stderr, "EST: can't allocate frame\n");
+		return;
+	}
+	if(!FLAC__bitwriter_init(frame)) {
+		fprintf(stderr, "EST: can't init frame\n");
+		return;
+	}
+	ret = add_subframe_(encoder, blocksize, subframe_bps, subframe, frame);
+	FLAC__ASSERT(ret);
+	{
+		const uint32_t actual = FLAC__bitwriter_get_input_bits_unconsumed(frame);
+		if(estimate != actual)
+			fprintf(stderr, "EST: bad, frame#%u sub#%%d type=%8s est=%u, actual=%u, delta=%d\n", encoder->private_->current_frame_number, FLAC__SubframeTypeString[subframe->type], estimate, actual, (int)actual-(int)estimate);
+	}
+	FLAC__bitwriter_delete(frame);
+}
+#endif
+
+uint32_t evaluate_constant_subframe_(
+	FLAC__StreamEncoder *encoder,
+	const FLAC__int64 signal,
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	FLAC__Subframe *subframe
+)
+{
+	uint32_t estimate;
+	subframe->type = FLAC__SUBFRAME_TYPE_CONSTANT;
+	subframe->data.constant.value = signal;
+
+	estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + subframe_bps;
+
+#if SPOTCHECK_ESTIMATE
+	spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
+#else
+	(void)encoder, (void)blocksize;
+#endif
+
+	return estimate;
+}
+
+uint32_t evaluate_fixed_subframe_(
+	FLAC__StreamEncoder *encoder,
+	const void *signal,
+	FLAC__int32 residual[],
+	FLAC__uint64 abs_residual_partition_sums[],
+	uint32_t raw_bits_per_partition[],
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	uint32_t order,
+	uint32_t rice_parameter_limit,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order,
+	FLAC__bool do_escape_coding,
+	uint32_t rice_parameter_search_dist,
+	FLAC__Subframe *subframe,
+	FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
+)
+{
+	uint32_t i, residual_bits, estimate;
+	const uint32_t residual_samples = blocksize - order;
+
+	if((subframe_bps + order) <= 32)
+		FLAC__fixed_compute_residual(((FLAC__int32 *)signal)+order, residual_samples, order, residual);
+	else if(subframe_bps <= 32)
+		FLAC__fixed_compute_residual_wide(((FLAC__int32 *)signal)+order, residual_samples, order, residual);
+	else
+		FLAC__fixed_compute_residual_wide_33bit(((FLAC__int64 *)signal)+order, residual_samples, order, residual);
+
+	subframe->type = FLAC__SUBFRAME_TYPE_FIXED;
+
+	subframe->data.fixed.entropy_coding_method.type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE;
+	subframe->data.fixed.entropy_coding_method.data.partitioned_rice.contents = partitioned_rice_contents;
+	subframe->data.fixed.residual = residual;
+
+	residual_bits =
+		find_best_partition_order_(
+			encoder->private_,
+			residual,
+			abs_residual_partition_sums,
+			raw_bits_per_partition,
+			residual_samples,
+			order,
+			rice_parameter_limit,
+			min_partition_order,
+			max_partition_order,
+			subframe_bps,
+			do_escape_coding,
+			rice_parameter_search_dist,
+			&subframe->data.fixed.entropy_coding_method
+		);
+
+	subframe->data.fixed.order = order;
+	if(subframe_bps <= 32)
+		for(i = 0; i < order; i++)
+			subframe->data.fixed.warmup[i] = ((FLAC__int32 *)signal)[i];
+	else
+		for(i = 0; i < order; i++)
+			subframe->data.fixed.warmup[i] = ((FLAC__int64 *)signal)[i];
+
+	estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + (order * subframe_bps);
+	if(residual_bits < UINT32_MAX - estimate) // To make sure estimate doesn't overflow
+		estimate += residual_bits;
+	else
+		estimate = UINT32_MAX;
+
+#if SPOTCHECK_ESTIMATE
+	spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
+#endif
+
+	return estimate;
+}
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t evaluate_lpc_subframe_(
+	FLAC__StreamEncoder *encoder,
+	const void *signal,
+	FLAC__int32 residual[],
+	FLAC__uint64 abs_residual_partition_sums[],
+	uint32_t raw_bits_per_partition[],
+	const FLAC__real lp_coeff[],
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	uint32_t order,
+	uint32_t qlp_coeff_precision,
+	uint32_t rice_parameter_limit,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order,
+	FLAC__bool do_escape_coding,
+	uint32_t rice_parameter_search_dist,
+	FLAC__Subframe *subframe,
+	FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents
+)
+{
+	FLAC__int32 qlp_coeff[FLAC__MAX_LPC_ORDER]; /* WATCHOUT: the size is important; some x86 intrinsic routines need more than lpc order elements */
+	uint32_t i, residual_bits, estimate;
+	int quantization, ret;
+	const uint32_t residual_samples = blocksize - order;
+
+	/* try to keep qlp coeff precision such that only 32-bit math is required for decode of <=16bps(+1bps for side channel) streams */
+	if(subframe_bps <= 17) {
+		FLAC__ASSERT(order > 0);
+		FLAC__ASSERT(order <= FLAC__MAX_LPC_ORDER);
+		qlp_coeff_precision = flac_min(qlp_coeff_precision, 32 - subframe_bps - FLAC__bitmath_ilog2(order));
+	}
+
+	ret = FLAC__lpc_quantize_coefficients(lp_coeff, order, qlp_coeff_precision, qlp_coeff, &quantization);
+	if(ret != 0)
+		return 0; /* this is a hack to indicate to the caller that we can't do lp at this order on this subframe */
+
+	if(FLAC__lpc_max_residual_bps(subframe_bps, qlp_coeff, order, quantization) > 32) {
+		if(subframe_bps <= 32){
+			if(!FLAC__lpc_compute_residual_from_qlp_coefficients_limit_residual(((FLAC__int32 *)signal)+order, residual_samples, qlp_coeff, order, quantization, residual))
+				return 0;
+		}
+		else
+			if(!FLAC__lpc_compute_residual_from_qlp_coefficients_limit_residual_33bit(((FLAC__int64 *)signal)+order, residual_samples, qlp_coeff, order, quantization, residual))
+				return 0;
+	}
+	else
+		if(FLAC__lpc_max_prediction_before_shift_bps(subframe_bps, qlp_coeff, order) <= 32)
+			if(subframe_bps <= 16 && qlp_coeff_precision <= 16)
+				encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_16bit(((FLAC__int32 *)signal)+order, residual_samples, qlp_coeff, order, quantization, residual);
+			else
+				encoder->private_->local_lpc_compute_residual_from_qlp_coefficients(((FLAC__int32 *)signal)+order, residual_samples, qlp_coeff, order, quantization, residual);
+		else
+			encoder->private_->local_lpc_compute_residual_from_qlp_coefficients_64bit(((FLAC__int32 *)signal)+order, residual_samples, qlp_coeff, order, quantization, residual);
+
+	subframe->type = FLAC__SUBFRAME_TYPE_LPC;
+
+	subframe->data.lpc.entropy_coding_method.type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE;
+	subframe->data.lpc.entropy_coding_method.data.partitioned_rice.contents = partitioned_rice_contents;
+	subframe->data.lpc.residual = residual;
+
+	residual_bits =
+		find_best_partition_order_(
+			encoder->private_,
+			residual,
+			abs_residual_partition_sums,
+			raw_bits_per_partition,
+			residual_samples,
+			order,
+			rice_parameter_limit,
+			min_partition_order,
+			max_partition_order,
+			subframe_bps,
+			do_escape_coding,
+			rice_parameter_search_dist,
+			&subframe->data.lpc.entropy_coding_method
+		);
+
+	subframe->data.lpc.order = order;
+	subframe->data.lpc.qlp_coeff_precision = qlp_coeff_precision;
+	subframe->data.lpc.quantization_level = quantization;
+	memcpy(subframe->data.lpc.qlp_coeff, qlp_coeff, sizeof(FLAC__int32)*FLAC__MAX_LPC_ORDER);
+	if(subframe_bps <= 32)
+		for(i = 0; i < order; i++)
+			subframe->data.lpc.warmup[i] = ((FLAC__int32 *)signal)[i];
+	else
+		for(i = 0; i < order; i++)
+			subframe->data.lpc.warmup[i] = ((FLAC__int64 *)signal)[i];
+
+
+	estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN + FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN + (order * (qlp_coeff_precision + subframe_bps));
+	if(residual_bits < UINT32_MAX - estimate) // To make sure estimate doesn't overflow
+		estimate += residual_bits;
+	else
+		estimate = UINT32_MAX;
+
+#if SPOTCHECK_ESTIMATE
+	spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
+#endif
+
+	return estimate;
+}
+#endif
+
+uint32_t evaluate_verbatim_subframe_(
+	FLAC__StreamEncoder *encoder,
+	const void *signal,
+	uint32_t blocksize,
+	uint32_t subframe_bps,
+	FLAC__Subframe *subframe
+)
+{
+	uint32_t estimate;
+
+	subframe->type = FLAC__SUBFRAME_TYPE_VERBATIM;
+
+	if(subframe_bps <= 32){
+		subframe->data.verbatim.data_type = FLAC__VERBATIM_SUBFRAME_DATA_TYPE_INT32;
+		subframe->data.verbatim.data.int32 = signal;
+	}
+	else {
+		subframe->data.verbatim.data_type = FLAC__VERBATIM_SUBFRAME_DATA_TYPE_INT64;
+		subframe->data.verbatim.data.int64 = signal;
+	}
+
+	estimate = FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN + subframe->wasted_bits + (blocksize * subframe_bps);
+
+#if SPOTCHECK_ESTIMATE
+	spotcheck_subframe_estimate_(encoder, blocksize, subframe_bps, subframe, estimate);
+#else
+	(void)encoder;
+#endif
+
+	return estimate;
+}
+
+uint32_t find_best_partition_order_(
+	FLAC__StreamEncoderPrivate *private_,
+	const FLAC__int32 residual[],
+	FLAC__uint64 abs_residual_partition_sums[],
+	uint32_t raw_bits_per_partition[],
+	uint32_t residual_samples,
+	uint32_t predictor_order,
+	uint32_t rice_parameter_limit,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order,
+	uint32_t bps,
+	FLAC__bool do_escape_coding,
+	uint32_t rice_parameter_search_dist,
+	FLAC__EntropyCodingMethod *best_ecm
+)
+{
+	uint32_t residual_bits, best_residual_bits = 0;
+	uint32_t best_parameters_index = 0;
+	uint32_t best_partition_order = 0;
+	const uint32_t blocksize = residual_samples + predictor_order;
+
+	max_partition_order = FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(max_partition_order, blocksize, predictor_order);
+	min_partition_order = flac_min(min_partition_order, max_partition_order);
+
+	private_->local_precompute_partition_info_sums(residual, abs_residual_partition_sums, residual_samples, predictor_order, min_partition_order, max_partition_order, bps);
+
+	if(do_escape_coding)
+		precompute_partition_info_escapes_(residual, raw_bits_per_partition, residual_samples, predictor_order, min_partition_order, max_partition_order);
+
+	{
+		int partition_order;
+		uint32_t sum;
+
+		for(partition_order = (int)max_partition_order, sum = 0; partition_order >= (int)min_partition_order; partition_order--) {
+			if(!
+				set_partitioned_rice_(
+#ifdef EXACT_RICE_BITS_CALCULATION
+					residual,
+#endif
+					abs_residual_partition_sums+sum,
+					raw_bits_per_partition+sum,
+					residual_samples,
+					predictor_order,
+					rice_parameter_limit,
+					rice_parameter_search_dist,
+					(uint32_t)partition_order,
+					do_escape_coding,
+					&private_->partitioned_rice_contents_extra[!best_parameters_index],
+					&residual_bits
+				)
+			)
+			{
+				FLAC__ASSERT(best_residual_bits != 0);
+				break;
+			}
+			sum += 1u << partition_order;
+			if(best_residual_bits == 0 || residual_bits < best_residual_bits) {
+				best_residual_bits = residual_bits;
+				best_parameters_index = !best_parameters_index;
+				best_partition_order = partition_order;
+			}
+		}
+	}
+
+	best_ecm->data.partitioned_rice.order = best_partition_order;
+
+	{
+		/*
+		 * We are allowed to de-const the pointer based on our special
+		 * knowledge; it is const to the outside world.
+		 */
+		FLAC__EntropyCodingMethod_PartitionedRiceContents* prc = (FLAC__EntropyCodingMethod_PartitionedRiceContents*)best_ecm->data.partitioned_rice.contents;
+		uint32_t partition;
+
+		/* save best parameters and raw_bits */
+		memcpy(prc->parameters, private_->partitioned_rice_contents_extra[best_parameters_index].parameters, (uint32_t)sizeof(uint32_t)*(1<<(best_partition_order)));
+		if(do_escape_coding)
+			memcpy(prc->raw_bits, private_->partitioned_rice_contents_extra[best_parameters_index].raw_bits, (uint32_t)sizeof(uint32_t)*(1<<(best_partition_order)));
+		/*
+		 * Now need to check if the type should be changed to
+		 * FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2 based on the
+		 * size of the rice parameters.
+		 */
+		for(partition = 0; partition < (1u<<best_partition_order); partition++) {
+			if(prc->parameters[partition] >= FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER) {
+				best_ecm->type = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2;
+				break;
+			}
+		}
+	}
+
+	return best_residual_bits;
+}
+
+void precompute_partition_info_sums_(
+	const FLAC__int32 residual[],
+	FLAC__uint64 abs_residual_partition_sums[],
+	uint32_t residual_samples,
+	uint32_t predictor_order,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order,
+	uint32_t bps
+)
+{
+	const uint32_t default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
+	uint32_t partitions = 1u << max_partition_order;
+
+	FLAC__ASSERT(default_partition_samples > predictor_order);
+
+	/* first do max_partition_order */
+	{
+		const uint32_t threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
+		uint32_t partition, residual_sample, end = (uint32_t)(-(int)predictor_order);
+		/* WATCHOUT: "bps + FLAC__MAX_EXTRA_RESIDUAL_BPS" is the maximum assumed size of the average residual magnitude */
+		if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
+			for(partition = residual_sample = 0; partition < partitions; partition++) {
+				FLAC__uint32 abs_residual_partition_sum = 0;
+				end += default_partition_samples;
+				for( ; residual_sample < end; residual_sample++)
+					abs_residual_partition_sum += abs(residual[residual_sample]); /* abs(INT_MIN) is undefined, but if the residual is INT_MIN we have bigger problems */
+				abs_residual_partition_sums[partition] = abs_residual_partition_sum;
+			}
+		}
+		else { /* have to pessimistically use 64 bits for accumulator */
+			for(partition = residual_sample = 0; partition < partitions; partition++) {
+				FLAC__uint64 abs_residual_partition_sum64 = 0;
+				end += default_partition_samples;
+				for( ; residual_sample < end; residual_sample++)
+					abs_residual_partition_sum64 += abs(residual[residual_sample]); /* abs(INT_MIN) is undefined, but if the residual is INT_MIN we have bigger problems */
+				abs_residual_partition_sums[partition] = abs_residual_partition_sum64;
+			}
+		}
+	}
+
+	/* now merge partitions for lower orders */
+	{
+		uint32_t from_partition = 0, to_partition = partitions;
+		int partition_order;
+		for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
+			uint32_t i;
+			partitions >>= 1;
+			for(i = 0; i < partitions; i++) {
+				abs_residual_partition_sums[to_partition++] =
+					abs_residual_partition_sums[from_partition  ] +
+					abs_residual_partition_sums[from_partition+1];
+				from_partition += 2;
+			}
+		}
+	}
+}
+
+void precompute_partition_info_escapes_(
+	const FLAC__int32 residual[],
+	uint32_t raw_bits_per_partition[],
+	uint32_t residual_samples,
+	uint32_t predictor_order,
+	uint32_t min_partition_order,
+	uint32_t max_partition_order
+)
+{
+	int partition_order;
+	uint32_t from_partition, to_partition = 0;
+	const uint32_t blocksize = residual_samples + predictor_order;
+
+	/* first do max_partition_order */
+	for(partition_order = (int)max_partition_order; partition_order >= 0; partition_order--) {
+		FLAC__int32 r;
+		FLAC__uint32 rmax;
+		uint32_t partition, partition_sample, partition_samples, residual_sample;
+		const uint32_t partitions = 1u << partition_order;
+		const uint32_t default_partition_samples = blocksize >> partition_order;
+
+		FLAC__ASSERT(default_partition_samples > predictor_order);
+
+		for(partition = residual_sample = 0; partition < partitions; partition++) {
+			partition_samples = default_partition_samples;
+			if(partition == 0)
+				partition_samples -= predictor_order;
+			rmax = 0;
+			for(partition_sample = 0; partition_sample < partition_samples; partition_sample++) {
+				r = residual[residual_sample++];
+				/* OPT: maybe faster: rmax |= r ^ (r>>31) */
+				if(r < 0)
+					rmax |= ~r;
+				else
+					rmax |= r;
+			}
+			/* now we know all residual values are in the range [-rmax-1,rmax] */
+			raw_bits_per_partition[partition] = rmax? FLAC__bitmath_ilog2(rmax) + 2 : 1;
+		}
+		to_partition = partitions;
+		break; /*@@@ yuck, should remove the 'for' loop instead */
+	}
+
+	/* now merge partitions for lower orders */
+	for(from_partition = 0, --partition_order; partition_order >= (int)min_partition_order; partition_order--) {
+		uint32_t m;
+		uint32_t i;
+		const uint32_t partitions = 1u << partition_order;
+		for(i = 0; i < partitions; i++) {
+			m = raw_bits_per_partition[from_partition];
+			from_partition++;
+			raw_bits_per_partition[to_partition] = flac_max(m, raw_bits_per_partition[from_partition]);
+			from_partition++;
+			to_partition++;
+		}
+	}
+}
+
+#ifdef EXACT_RICE_BITS_CALCULATION
+static inline uint32_t count_rice_bits_in_partition_(
+	const uint32_t rice_parameter,
+	const uint32_t partition_samples,
+	const FLAC__int32 *residual
+)
+{
+	uint32_t i;
+	uint64_t partition_bits =
+		FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN + /* actually could end up being FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN but err on side of 16bps */
+		(1+rice_parameter) * partition_samples /* 1 for unary stop bit + rice_parameter for the binary portion */
+	;
+	for(i = 0; i < partition_samples; i++)
+		partition_bits += ( (FLAC__uint32)((residual[i]<<1)^(residual[i]>>31)) >> rice_parameter );
+	return (uint32_t)(flac_min(partition_bits,UINT32_MAX)); // To make sure the return value doesn't overflow
+}
+#else
+static inline uint32_t count_rice_bits_in_partition_(
+	const uint32_t rice_parameter,
+	const uint32_t partition_samples,
+	const FLAC__uint64 abs_residual_partition_sum
+)
+{
+	return (uint32_t)(flac_min( // To make sure the return value doesn't overflow
+		FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN + /* actually could end up being FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN but err on side of 16bps */
+		(1+rice_parameter) * partition_samples + /* 1 for unary stop bit + rice_parameter for the binary portion */
+		(
+			rice_parameter?
+				(abs_residual_partition_sum >> (rice_parameter-1)) /* rice_parameter-1 because the real coder sign-folds instead of using a sign bit */
+				: (abs_residual_partition_sum << 1) /* can't shift by negative number, so reverse */
+		)
+		- (partition_samples >> 1),UINT32_MAX));
+		/* -(partition_samples>>1) to subtract out extra contributions to the abs_residual_partition_sum.
+		 * The actual number of bits used is closer to the sum(for all i in the partition) of  abs(residual[i])>>(rice_parameter-1)
+		 * By using the abs_residual_partition sum, we also add in bits in the LSBs that would normally be shifted out.
+		 * So the subtraction term tries to guess how many extra bits were contributed.
+		 * If the LSBs are randomly distributed, this should average to 0.5 extra bits per sample.
+		 */
+	;
+}
+#endif
+
+FLAC__bool set_partitioned_rice_(
+#ifdef EXACT_RICE_BITS_CALCULATION
+	const FLAC__int32 residual[],
+#endif
+	const FLAC__uint64 abs_residual_partition_sums[],
+	const uint32_t raw_bits_per_partition[],
+	const uint32_t residual_samples,
+	const uint32_t predictor_order,
+	const uint32_t rice_parameter_limit,
+	const uint32_t rice_parameter_search_dist,
+	const uint32_t partition_order,
+	const FLAC__bool search_for_escapes,
+	FLAC__EntropyCodingMethod_PartitionedRiceContents *partitioned_rice_contents,
+	uint32_t *bits
+)
+{
+	uint32_t rice_parameter, partition_bits;
+	uint32_t best_partition_bits, best_rice_parameter = 0;
+	uint32_t bits_ = FLAC__ENTROPY_CODING_METHOD_TYPE_LEN + FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN;
+	uint32_t *parameters, *raw_bits;
+	uint32_t partition, residual_sample;
+	uint32_t partition_samples;
+	const uint32_t partitions = 1u << partition_order;
+	FLAC__uint64 mean, k;
+#ifdef ENABLE_RICE_PARAMETER_SEARCH
+	uint32_t min_rice_parameter, max_rice_parameter;
+#else
+	(void)rice_parameter_search_dist;
+#endif
+
+	FLAC__ASSERT(rice_parameter_limit <= FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER);
+
+	parameters = partitioned_rice_contents->parameters;
+	raw_bits = partitioned_rice_contents->raw_bits;
+
+	for(partition = residual_sample = 0; partition < partitions; partition++) {
+		partition_samples = (residual_samples+predictor_order) >> partition_order;
+		if(partition == 0) {
+			if(partition_samples <= predictor_order)
+				return false;
+			else
+				partition_samples -= predictor_order;
+		}
+		mean = abs_residual_partition_sums[partition];
+		/* we are basically calculating the size in bits of the
+		 * average residual magnitude in the partition:
+		 *   rice_parameter = floor(log2(mean/partition_samples))
+		 * 'mean' is not a good name for the variable, it is
+		 * actually the sum of magnitudes of all residual values
+		 * in the partition, so the actual mean is
+		 * mean/partition_samples
+		 */
+#if 0 /* old simple code */
+		for(rice_parameter = 0, k = partition_samples; k < mean; rice_parameter++, k <<= 1)
+			;
+#else
+#if defined FLAC__CPU_X86_64 /* and other 64-bit arch, too */
+		if(mean <= 0x80000000/512) { /* 512: more or less optimal for both 16- and 24-bit input */
+#else
+		if(mean <= 0x80000000/8) { /* 32-bit arch: use 32-bit math if possible */
+#endif
+			FLAC__uint32 k2, mean2 = (FLAC__uint32) mean;
+			rice_parameter = 0; k2 = partition_samples;
+			while(k2*8 < mean2) { /* requires: mean <= (2^31)/8 */
+				rice_parameter += 4; k2 <<= 4; /* tuned for 16-bit input */
+			}
+			while(k2 < mean2) { /* requires: mean <= 2^31 */
+				rice_parameter++; k2 <<= 1;
+			}
+		}
+		else {
+			rice_parameter = 0; k = partition_samples;
+			if(mean <= FLAC__U64L(0x8000000000000000)/128) /* usually mean is _much_ smaller than this value */
+				while(k*128 < mean) { /* requires: mean <= (2^63)/128 */
+					rice_parameter += 8; k <<= 8; /* tuned for 24-bit input */
+				}
+			while(k < mean) { /* requires: mean <= 2^63 */
+				rice_parameter++; k <<= 1;
+			}
+		}
+#endif
+		if(rice_parameter >= rice_parameter_limit) {
+#ifndef NDEBUG
+			fprintf(stderr, "clipping rice_parameter (%u -> %u) @6\n", rice_parameter, rice_parameter_limit - 1);
+#endif
+			rice_parameter = rice_parameter_limit - 1;
+		}
+
+		best_partition_bits = UINT32_MAX;
+#ifdef ENABLE_RICE_PARAMETER_SEARCH
+		if(rice_parameter_search_dist) {
+			if(rice_parameter < rice_parameter_search_dist)
+				min_rice_parameter = 0;
+			else
+				min_rice_parameter = rice_parameter - rice_parameter_search_dist;
+			max_rice_parameter = rice_parameter + rice_parameter_search_dist;
+			if(max_rice_parameter >= rice_parameter_limit) {
+#ifndef NDEBUG
+				fprintf(stderr, "clipping rice_parameter (%u -> %u) @7\n", max_rice_parameter, rice_parameter_limit - 1);
+#endif
+				max_rice_parameter = rice_parameter_limit - 1;
+			}
+		}
+		else
+			min_rice_parameter = max_rice_parameter = rice_parameter;
+
+		for(rice_parameter = min_rice_parameter; rice_parameter <= max_rice_parameter; rice_parameter++) {
+#endif
+#ifdef EXACT_RICE_BITS_CALCULATION
+			partition_bits = count_rice_bits_in_partition_(rice_parameter, partition_samples, residual+residual_sample);
+#else
+			partition_bits = count_rice_bits_in_partition_(rice_parameter, partition_samples, abs_residual_partition_sums[partition]);
+#endif
+			if(partition_bits < best_partition_bits) {
+				best_rice_parameter = rice_parameter;
+				best_partition_bits = partition_bits;
+			}
+#ifdef ENABLE_RICE_PARAMETER_SEARCH
+		}
+#endif
+		if(search_for_escapes) {
+			partition_bits = FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN + FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN + raw_bits_per_partition[partition] * partition_samples;
+			if(partition_bits <= best_partition_bits && raw_bits_per_partition[partition] < 32) {
+				raw_bits[partition] = raw_bits_per_partition[partition];
+				best_rice_parameter = 0; /* will be converted to appropriate escape parameter later */
+				best_partition_bits = partition_bits;
+			}
+			else
+				raw_bits[partition] = 0;
+		}
+		parameters[partition] = best_rice_parameter;
+		if(best_partition_bits < UINT32_MAX - bits_) // To make sure _bits doesn't overflow
+			bits_ += best_partition_bits;
+		else
+			bits_ = UINT32_MAX;
+		residual_sample += partition_samples;
+	}
+
+	*bits = bits_;
+	return true;
+}
+
+uint32_t get_wasted_bits_(FLAC__int32 signal[], uint32_t samples)
+{
+	uint32_t i, shift;
+	FLAC__int32 x = 0;
+
+	for(i = 0; i < samples && !(x&1); i++)
+		x |= signal[i];
+
+	if(x == 0) {
+		shift = 0;
+	}
+	else {
+		for(shift = 0; !(x&1); shift++)
+			x >>= 1;
+	}
+
+	if(shift > 0) {
+		for(i = 0; i < samples; i++)
+			 signal[i] >>= shift;
+	}
+
+	return shift;
+}
+
+uint32_t get_wasted_bits_wide_(FLAC__int64 signal_wide[], FLAC__int32 signal[], uint32_t samples)
+{
+	uint32_t i, shift;
+	FLAC__int64 x = 0;
+
+	for(i = 0; i < samples && !(x&1); i++)
+		x |= signal_wide[i];
+
+	if(x == 0) {
+		shift = 1;
+	}
+	else {
+		for(shift = 0; !(x&1); shift++)
+			x >>= 1;
+	}
+
+	if(shift > 0) {
+		for(i = 0; i < samples; i++)
+			 signal[i] = (FLAC__int32)(signal_wide[i] >> shift);
+	}
+
+	return shift;
+}
+
+
+void append_to_verify_fifo_(verify_input_fifo *fifo, const FLAC__int32 * const input[], uint32_t input_offset, uint32_t channels, uint32_t wide_samples)
+{
+	uint32_t channel;
+
+	for(channel = 0; channel < channels; channel++)
+		memcpy(&fifo->data[channel][fifo->tail], &input[channel][input_offset], sizeof(FLAC__int32) * wide_samples);
+
+	fifo->tail += wide_samples;
+
+	FLAC__ASSERT(fifo->tail <= fifo->size);
+}
+
+void append_to_verify_fifo_interleaved_(verify_input_fifo *fifo, const FLAC__int32 input[], uint32_t input_offset, uint32_t channels, uint32_t wide_samples)
+{
+	uint32_t channel;
+	uint32_t sample, wide_sample;
+	uint32_t tail = fifo->tail;
+
+	sample = input_offset * channels;
+	for(wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
+		for(channel = 0; channel < channels; channel++)
+			fifo->data[channel][tail] = input[sample++];
+		tail++;
+	}
+	fifo->tail = tail;
+
+	FLAC__ASSERT(fifo->tail <= fifo->size);
+}
+
+FLAC__StreamDecoderReadStatus verify_read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
+{
+	FLAC__StreamEncoder *encoder = (FLAC__StreamEncoder*)client_data;
+	const size_t encoded_bytes = encoder->private_->verify.output.bytes;
+	(void)decoder;
+
+	if(encoder->private_->verify.needs_magic_hack) {
+		FLAC__ASSERT(*bytes >= FLAC__STREAM_SYNC_LENGTH);
+		*bytes = FLAC__STREAM_SYNC_LENGTH;
+		memcpy(buffer, FLAC__STREAM_SYNC_STRING, *bytes);
+		encoder->private_->verify.needs_magic_hack = false;
+	}
+	else {
+		if(encoded_bytes == 0) {
+			/*
+			 * If we get here, a FIFO underflow has occurred,
+			 * which means there is a bug somewhere.
+			 */
+			FLAC__ASSERT(0);
+			return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
+		}
+		else if(encoded_bytes < *bytes)
+			*bytes = encoded_bytes;
+		memcpy(buffer, encoder->private_->verify.output.data, *bytes);
+		encoder->private_->verify.output.data += *bytes;
+		encoder->private_->verify.output.bytes -= *bytes;
+	}
+
+	return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
+}
+
+FLAC__StreamDecoderWriteStatus verify_write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
+{
+	FLAC__StreamEncoder *encoder = (FLAC__StreamEncoder *)client_data;
+	uint32_t channel;
+	const uint32_t channels = frame->header.channels;
+	const uint32_t blocksize = frame->header.blocksize;
+	const uint32_t bytes_per_block = sizeof(FLAC__int32) * blocksize;
+
+	(void)decoder;
+
+	if(encoder->protected_->state == FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR) {
+		/* This is set when verify_error_callback_ was called */
+		return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+	}
+
+	for(channel = 0; channel < channels; channel++) {
+		if(0 != memcmp(buffer[channel], encoder->private_->verify.input_fifo.data[channel], bytes_per_block)) {
+			uint32_t i, sample = 0;
+			FLAC__int32 expect = 0, got = 0;
+
+			for(i = 0; i < blocksize; i++) {
+				if(buffer[channel][i] != encoder->private_->verify.input_fifo.data[channel][i]) {
+					sample = i;
+					expect = (FLAC__int32)encoder->private_->verify.input_fifo.data[channel][i];
+					got = (FLAC__int32)buffer[channel][i];
+					break;
+				}
+			}
+			FLAC__ASSERT(i < blocksize);
+			FLAC__ASSERT(frame->header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
+			encoder->private_->verify.error_stats.absolute_sample = frame->header.number.sample_number + sample;
+			encoder->private_->verify.error_stats.frame_number = (uint32_t)(frame->header.number.sample_number / blocksize);
+			encoder->private_->verify.error_stats.channel = channel;
+			encoder->private_->verify.error_stats.sample = sample;
+			encoder->private_->verify.error_stats.expected = expect;
+			encoder->private_->verify.error_stats.got = got;
+			encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_MISMATCH_IN_AUDIO_DATA;
+			return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+		}
+	}
+	/* dequeue the frame from the fifo */
+	encoder->private_->verify.input_fifo.tail -= blocksize;
+	FLAC__ASSERT(encoder->private_->verify.input_fifo.tail <= OVERREAD_);
+	for(channel = 0; channel < channels; channel++)
+		memmove(&encoder->private_->verify.input_fifo.data[channel][0], &encoder->private_->verify.input_fifo.data[channel][blocksize], encoder->private_->verify.input_fifo.tail * sizeof(encoder->private_->verify.input_fifo.data[0][0]));
+	return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
+}
+
+void verify_metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+	(void)decoder, (void)metadata, (void)client_data;
+}
+
+void verify_error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
+{
+	FLAC__StreamEncoder *encoder = (FLAC__StreamEncoder*)client_data;
+	(void)decoder, (void)status;
+	encoder->protected_->state = FLAC__STREAM_ENCODER_VERIFY_DECODER_ERROR;
+}
+
+FLAC__StreamEncoderReadStatus file_read_callback_(const FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
+{
+	(void)client_data;
+
+	*bytes = fread(buffer, 1, *bytes, encoder->private_->file);
+	if (*bytes == 0) {
+		if (feof(encoder->private_->file))
+			return FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM;
+		else if (ferror(encoder->private_->file))
+			return FLAC__STREAM_ENCODER_READ_STATUS_ABORT;
+	}
+	return FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE;
+}
+
+FLAC__StreamEncoderSeekStatus file_seek_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data)
+{
+	(void)client_data;
+
+	if(fseeko(encoder->private_->file, (FLAC__off_t)absolute_byte_offset, SEEK_SET) < 0)
+		return FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR;
+	else
+		return FLAC__STREAM_ENCODER_SEEK_STATUS_OK;
+}
+
+FLAC__StreamEncoderTellStatus file_tell_callback_(const FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
+{
+	FLAC__off_t offset;
+
+	(void)client_data;
+
+	offset = ftello(encoder->private_->file);
+
+	if(offset < 0) {
+		return FLAC__STREAM_ENCODER_TELL_STATUS_ERROR;
+	}
+	else {
+		*absolute_byte_offset = (FLAC__uint64)offset;
+		return FLAC__STREAM_ENCODER_TELL_STATUS_OK;
+	}
+}
+
+#ifdef FLAC__VALGRIND_TESTING
+static size_t local__fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
+{
+	size_t ret = fwrite(ptr, size, nmemb, stream);
+	if(!ferror(stream))
+		fflush(stream);
+	return ret;
+}
+#else
+#define local__fwrite fwrite
+#endif
+
+FLAC__StreamEncoderWriteStatus file_write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame, void *client_data)
+{
+	(void)client_data, (void)current_frame;
+
+	if(local__fwrite(buffer, sizeof(FLAC__byte), bytes, encoder->private_->file) == bytes) {
+		FLAC__bool call_it = 0 != encoder->private_->progress_callback && (
+#if FLAC__HAS_OGG
+			/* We would like to be able to use 'samples > 0' in the
+			 * clause here but currently because of the nature of our
+			 * Ogg writing implementation, 'samples' is always 0 (see
+			 * ogg_encoder_aspect.c).  The downside is extra progress
+			 * callbacks.
+			 */
+			encoder->private_->is_ogg? true :
+#endif
+			samples > 0
+		);
+		if(call_it) {
+			/* NOTE: We have to add +bytes, +samples, and +1 to the stats
+			 * because at this point in the callback chain, the stats
+			 * have not been updated.  Only after we return and control
+			 * gets back to write_frame_() are the stats updated
+			 */
+			encoder->private_->progress_callback(encoder, encoder->private_->bytes_written+bytes, encoder->private_->samples_written+samples, encoder->private_->frames_written+(samples?1:0), encoder->private_->total_frames_estimate, encoder->private_->client_data);
+		}
+		return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
+	}
+	else
+		return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+}
+
+/*
+ * This will forcibly set stdout to binary mode (for OSes that require it)
+ */
+FILE *get_binary_stdout_(void)
+{
+	/* if something breaks here it is probably due to the presence or
+	 * absence of an underscore before the identifiers 'setmode',
+	 * 'fileno', and/or 'O_BINARY'; check your system header files.
+	 */
+#if defined _MSC_VER || defined __MINGW32__
+	_setmode(_fileno(stdout), _O_BINARY);
+#elif defined __EMX__
+	setmode(fileno(stdout), O_BINARY);
+#endif
+
+	return stdout;
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_framing.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_framing.c
new file mode 100644
index 00000000..a3bdd716
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_framing.c
@@ -0,0 +1,573 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <string.h> /* for strlen() */
+#include "private/stream_encoder_framing.h"
+#include "private/crc.h"
+#include "FLAC/assert.h"
+#include "share/compat.h"
+
+static FLAC__bool add_entropy_coding_method_(FLAC__BitWriter *bw, const FLAC__EntropyCodingMethod *method);
+static FLAC__bool add_residual_partitioned_rice_(FLAC__BitWriter *bw, const FLAC__int32 residual[], const uint32_t residual_samples, const uint32_t predictor_order, const uint32_t rice_parameters[], const uint32_t raw_bits[], const uint32_t partition_order, const FLAC__bool is_extended);
+
+FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetadata *metadata, FLAC__BitWriter *bw)
+{
+	uint32_t i, j;
+	const uint32_t vendor_string_length = (uint32_t)strlen(FLAC__VENDOR_STRING);
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->is_last, FLAC__STREAM_METADATA_IS_LAST_LEN))
+		return false;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->type, FLAC__STREAM_METADATA_TYPE_LEN))
+		return false;
+
+	/*
+	 * First, for VORBIS_COMMENTs, adjust the length to reflect our vendor string
+	 */
+	i = metadata->length;
+	if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
+		FLAC__ASSERT(metadata->data.vorbis_comment.vendor_string.length == 0 || 0 != metadata->data.vorbis_comment.vendor_string.entry);
+		i -= metadata->data.vorbis_comment.vendor_string.length;
+		i += vendor_string_length;
+	}
+	FLAC__ASSERT(i < (1u << FLAC__STREAM_METADATA_LENGTH_LEN));
+	/* double protection */
+	if(i >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
+		return false;
+	if(!FLAC__bitwriter_write_raw_uint32(bw, i, FLAC__STREAM_METADATA_LENGTH_LEN))
+		return false;
+
+	switch(metadata->type) {
+		case FLAC__METADATA_TYPE_STREAMINFO:
+			FLAC__ASSERT(metadata->data.stream_info.min_blocksize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.min_blocksize, FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN))
+				return false;
+			FLAC__ASSERT(metadata->data.stream_info.max_blocksize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.max_blocksize, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
+				return false;
+			FLAC__ASSERT(metadata->data.stream_info.min_framesize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.min_framesize, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
+				return false;
+			FLAC__ASSERT(metadata->data.stream_info.max_framesize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.max_framesize, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
+				return false;
+			FLAC__ASSERT(FLAC__format_sample_rate_is_valid(metadata->data.stream_info.sample_rate));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.sample_rate, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
+				return false;
+			FLAC__ASSERT(metadata->data.stream_info.channels > 0);
+			FLAC__ASSERT(metadata->data.stream_info.channels <= (1u << FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.channels-1, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
+				return false;
+			FLAC__ASSERT(metadata->data.stream_info.bits_per_sample > 0);
+			FLAC__ASSERT(metadata->data.stream_info.bits_per_sample <= (1u << FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.bits_per_sample-1, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
+				return false;
+			if(metadata->data.stream_info.total_samples >= (FLAC__U64L(1) << FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN)){
+				if(!FLAC__bitwriter_write_raw_uint64(bw, 0, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
+					return false;
+			}else{
+				if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.stream_info.total_samples, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
+					return false;
+			}
+			if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.stream_info.md5sum, 16))
+				return false;
+			break;
+		case FLAC__METADATA_TYPE_PADDING:
+			if(!FLAC__bitwriter_write_zeroes(bw, metadata->length * 8))
+				return false;
+			break;
+		case FLAC__METADATA_TYPE_APPLICATION:
+			if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8))
+				return false;
+			if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.application.data, metadata->length - (FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)))
+				return false;
+			break;
+		case FLAC__METADATA_TYPE_SEEKTABLE:
+			for(i = 0; i < metadata->data.seek_table.num_points; i++) {
+				if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.seek_table.points[i].sample_number, FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.seek_table.points[i].stream_offset, FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.seek_table.points[i].frame_samples, FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN))
+					return false;
+			}
+			break;
+		case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+			if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, vendor_string_length))
+				return false;
+			if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)FLAC__VENDOR_STRING, vendor_string_length))
+				return false;
+			if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, metadata->data.vorbis_comment.num_comments))
+				return false;
+			for(i = 0; i < metadata->data.vorbis_comment.num_comments; i++) {
+				if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, metadata->data.vorbis_comment.comments[i].length))
+					return false;
+				if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.vorbis_comment.comments[i].entry, metadata->data.vorbis_comment.comments[i].length))
+					return false;
+			}
+			break;
+		case FLAC__METADATA_TYPE_CUESHEET:
+			FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
+			if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)metadata->data.cue_sheet.media_catalog_number, FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN/8))
+				return false;
+			if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.cue_sheet.lead_in, FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN))
+				return false;
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.cue_sheet.is_cd? 1 : 0, FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN))
+				return false;
+			if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN))
+				return false;
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.cue_sheet.num_tracks, FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN))
+				return false;
+			for(i = 0; i < metadata->data.cue_sheet.num_tracks; i++) {
+				const FLAC__StreamMetadata_CueSheet_Track *track = metadata->data.cue_sheet.tracks + i;
+
+				if(!FLAC__bitwriter_write_raw_uint64(bw, track->offset, FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, track->number, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN))
+					return false;
+				FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
+				if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)track->isrc, FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN/8))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, track->type, FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, track->pre_emphasis, FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, track->num_indices, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN))
+					return false;
+				for(j = 0; j < track->num_indices; j++) {
+					const FLAC__StreamMetadata_CueSheet_Index *indx = track->indices + j;
+
+					if(!FLAC__bitwriter_write_raw_uint64(bw, indx->offset, FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN))
+						return false;
+					if(!FLAC__bitwriter_write_raw_uint32(bw, indx->number, FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN))
+						return false;
+					if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN))
+						return false;
+				}
+			}
+			break;
+		case FLAC__METADATA_TYPE_PICTURE:
+			{
+				size_t len;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.type, FLAC__STREAM_METADATA_PICTURE_TYPE_LEN))
+					return false;
+				len = strlen(metadata->data.picture.mime_type);
+				if(!FLAC__bitwriter_write_raw_uint32(bw, len, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)metadata->data.picture.mime_type, len))
+					return false;
+				len = strlen((const char *)metadata->data.picture.description);
+				if(!FLAC__bitwriter_write_raw_uint32(bw, len, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.picture.description, len))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.width, FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.height, FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.depth, FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.colors, FLAC__STREAM_METADATA_PICTURE_COLORS_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.data_length, FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.picture.data, metadata->data.picture.data_length))
+					return false;
+			}
+			break;
+		default:
+			if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.unknown.data, metadata->length))
+				return false;
+			break;
+	}
+
+	FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(bw));
+	return true;
+}
+
+FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__BitWriter *bw)
+{
+	uint32_t u, blocksize_hint, sample_rate_hint;
+	FLAC__byte crc;
+
+	FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(bw));
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__FRAME_HEADER_SYNC, FLAC__FRAME_HEADER_SYNC_LEN))
+		return false;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, 0, FLAC__FRAME_HEADER_RESERVED_LEN))
+		return false;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, (header->number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER)? 0 : 1, FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN))
+		return false;
+
+	FLAC__ASSERT(header->blocksize > 0 && header->blocksize <= FLAC__MAX_BLOCK_SIZE);
+	/* when this assertion holds true, any legal blocksize can be expressed in the frame header */
+	FLAC__ASSERT(FLAC__MAX_BLOCK_SIZE <= 65535u);
+	blocksize_hint = 0;
+	switch(header->blocksize) {
+		case   192: u = 1; break;
+		case   576: u = 2; break;
+		case  1152: u = 3; break;
+		case  2304: u = 4; break;
+		case  4608: u = 5; break;
+		case   256: u = 8; break;
+		case   512: u = 9; break;
+		case  1024: u = 10; break;
+		case  2048: u = 11; break;
+		case  4096: u = 12; break;
+		case  8192: u = 13; break;
+		case 16384: u = 14; break;
+		case 32768: u = 15; break;
+		default:
+			if(header->blocksize <= 0x100)
+				blocksize_hint = u = 6;
+			else
+				blocksize_hint = u = 7;
+			break;
+	}
+	if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_BLOCK_SIZE_LEN))
+		return false;
+
+	FLAC__ASSERT(FLAC__format_sample_rate_is_valid(header->sample_rate));
+	sample_rate_hint = 0;
+	switch(header->sample_rate) {
+		case  88200: u = 1; break;
+		case 176400: u = 2; break;
+		case 192000: u = 3; break;
+		case   8000: u = 4; break;
+		case  16000: u = 5; break;
+		case  22050: u = 6; break;
+		case  24000: u = 7; break;
+		case  32000: u = 8; break;
+		case  44100: u = 9; break;
+		case  48000: u = 10; break;
+		case  96000: u = 11; break;
+		default:
+			if(header->sample_rate <= 255000 && header->sample_rate % 1000 == 0)
+				sample_rate_hint = u = 12;
+			else if(header->sample_rate <= 655350 && header->sample_rate % 10 == 0)
+				sample_rate_hint = u = 14;
+			else if(header->sample_rate <= 0xffff)
+				sample_rate_hint = u = 13;
+			else
+				u = 0;
+			break;
+	}
+	if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_SAMPLE_RATE_LEN))
+		return false;
+
+	FLAC__ASSERT(header->channels > 0 && header->channels <= (1u << FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN) && header->channels <= FLAC__MAX_CHANNELS);
+	switch(header->channel_assignment) {
+		case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
+			u = header->channels - 1;
+			break;
+		case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
+			FLAC__ASSERT(header->channels == 2);
+			u = 8;
+			break;
+		case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
+			FLAC__ASSERT(header->channels == 2);
+			u = 9;
+			break;
+		case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
+			FLAC__ASSERT(header->channels == 2);
+			u = 10;
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+	if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN))
+		return false;
+
+	FLAC__ASSERT(header->bits_per_sample > 0 && header->bits_per_sample <= (1u << FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN));
+	switch(header->bits_per_sample) {
+		case 8 : u = 1; break;
+		case 12: u = 2; break;
+		case 16: u = 4; break;
+		case 20: u = 5; break;
+		case 24: u = 6; break;
+		case 32: u = 7; break;
+		default: u = 0; break;
+	}
+	if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN))
+		return false;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, 0, FLAC__FRAME_HEADER_ZERO_PAD_LEN))
+		return false;
+
+	if(header->number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER) {
+		if(!FLAC__bitwriter_write_utf8_uint32(bw, header->number.frame_number))
+			return false;
+	}
+	else {
+		if(!FLAC__bitwriter_write_utf8_uint64(bw, header->number.sample_number))
+			return false;
+	}
+
+	if(blocksize_hint)
+		if(!FLAC__bitwriter_write_raw_uint32(bw, header->blocksize-1, (blocksize_hint==6)? 8:16))
+			return false;
+
+	switch(sample_rate_hint) {
+		case 12:
+			if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate / 1000, 8))
+				return false;
+			break;
+		case 13:
+			if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate, 16))
+				return false;
+			break;
+		case 14:
+			if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate / 10, 16))
+				return false;
+			break;
+	}
+
+	/* write the CRC */
+	if(!FLAC__bitwriter_get_write_crc8(bw, &crc))
+		return false;
+	if(!FLAC__bitwriter_write_raw_uint32(bw, crc, FLAC__FRAME_HEADER_CRC_LEN))
+		return false;
+
+	return true;
+}
+
+FLAC__bool FLAC__subframe_add_constant(const FLAC__Subframe_Constant *subframe, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw)
+{
+	FLAC__bool ok;
+
+	ok =
+		FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN) &&
+		(wasted_bits? FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1) : true) &&
+		FLAC__bitwriter_write_raw_int64(bw, subframe->value, subframe_bps)
+	;
+
+	return ok;
+}
+
+FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, uint32_t residual_samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw)
+{
+	uint32_t i;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK | (subframe->order<<1) | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
+		return false;
+	if(wasted_bits)
+		if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
+			return false;
+
+	for(i = 0; i < subframe->order; i++)
+		if(!FLAC__bitwriter_write_raw_int64(bw, subframe->warmup[i], subframe_bps))
+			return false;
+
+	if(!add_entropy_coding_method_(bw, &subframe->entropy_coding_method))
+		return false;
+	switch(subframe->entropy_coding_method.type) {
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
+			if(!add_residual_partitioned_rice_(
+				bw,
+				subframe->residual,
+				residual_samples,
+				subframe->order,
+				subframe->entropy_coding_method.data.partitioned_rice.contents->parameters,
+				subframe->entropy_coding_method.data.partitioned_rice.contents->raw_bits,
+				subframe->entropy_coding_method.data.partitioned_rice.order,
+				/*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2
+			))
+				return false;
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+
+	return true;
+}
+
+FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, uint32_t residual_samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw)
+{
+	uint32_t i;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK | ((subframe->order-1)<<1) | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
+		return false;
+	if(wasted_bits)
+		if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
+			return false;
+
+	for(i = 0; i < subframe->order; i++)
+		if(!FLAC__bitwriter_write_raw_int64(bw, subframe->warmup[i], subframe_bps))
+			return false;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, subframe->qlp_coeff_precision-1, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN))
+		return false;
+	if(!FLAC__bitwriter_write_raw_int32(bw, subframe->quantization_level, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN))
+		return false;
+	for(i = 0; i < subframe->order; i++)
+		if(!FLAC__bitwriter_write_raw_int32(bw, subframe->qlp_coeff[i], subframe->qlp_coeff_precision))
+			return false;
+
+	if(!add_entropy_coding_method_(bw, &subframe->entropy_coding_method))
+		return false;
+	switch(subframe->entropy_coding_method.type) {
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
+			if(!add_residual_partitioned_rice_(
+				bw,
+				subframe->residual,
+				residual_samples,
+				subframe->order,
+				subframe->entropy_coding_method.data.partitioned_rice.contents->parameters,
+				subframe->entropy_coding_method.data.partitioned_rice.contents->raw_bits,
+				subframe->entropy_coding_method.data.partitioned_rice.order,
+				/*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2
+			))
+				return false;
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+
+	return true;
+}
+
+FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe, uint32_t samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw)
+{
+	uint32_t i;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
+		return false;
+	if(wasted_bits)
+		if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
+			return false;
+
+	if(subframe->data_type == FLAC__VERBATIM_SUBFRAME_DATA_TYPE_INT32) {
+		const FLAC__int32 *signal = subframe->data.int32;
+
+		FLAC__ASSERT(subframe_bps < 33);
+
+		for(i = 0; i < samples; i++)
+			if(!FLAC__bitwriter_write_raw_int32(bw, signal[i], subframe_bps))
+				return false;
+	}
+	else {
+		const FLAC__int64 *signal = subframe->data.int64;
+
+		FLAC__ASSERT(subframe_bps == 33);
+
+		for(i = 0; i < samples; i++)
+			if(!FLAC__bitwriter_write_raw_int64(bw, (FLAC__int64)signal[i], subframe_bps))
+				return false;
+	}
+
+	return true;
+}
+
+FLAC__bool add_entropy_coding_method_(FLAC__BitWriter *bw, const FLAC__EntropyCodingMethod *method)
+{
+	if(!FLAC__bitwriter_write_raw_uint32(bw, method->type, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
+		return false;
+	switch(method->type) {
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
+			if(!FLAC__bitwriter_write_raw_uint32(bw, method->data.partitioned_rice.order, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
+				return false;
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+	return true;
+}
+
+FLAC__bool add_residual_partitioned_rice_(FLAC__BitWriter *bw, const FLAC__int32 residual[], const uint32_t residual_samples, const uint32_t predictor_order, const uint32_t rice_parameters[], const uint32_t raw_bits[], const uint32_t partition_order, const FLAC__bool is_extended)
+{
+	const uint32_t plen = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN;
+	const uint32_t pesc = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
+
+	if(partition_order == 0) {
+		uint32_t i;
+
+		if(raw_bits[0] == 0) {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, rice_parameters[0], plen))
+				return false;
+			if(!FLAC__bitwriter_write_rice_signed_block(bw, residual, residual_samples, rice_parameters[0]))
+				return false;
+		}
+		else {
+			FLAC__ASSERT(rice_parameters[0] == 0);
+			if(!FLAC__bitwriter_write_raw_uint32(bw, pesc, plen))
+				return false;
+			if(!FLAC__bitwriter_write_raw_uint32(bw, raw_bits[0], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
+				return false;
+			for(i = 0; i < residual_samples; i++) {
+				if(!FLAC__bitwriter_write_raw_int32(bw, residual[i], raw_bits[0]))
+					return false;
+			}
+		}
+		return true;
+	}
+	else {
+		uint32_t i, j, k = 0, k_last = 0;
+		uint32_t partition_samples;
+		const uint32_t default_partition_samples = (residual_samples+predictor_order) >> partition_order;
+		for(i = 0; i < (1u<<partition_order); i++) {
+			partition_samples = default_partition_samples;
+			if(i == 0)
+				partition_samples -= predictor_order;
+			k += partition_samples;
+			if(raw_bits[i] == 0) {
+				if(!FLAC__bitwriter_write_raw_uint32(bw, rice_parameters[i], plen))
+					return false;
+				if(!FLAC__bitwriter_write_rice_signed_block(bw, residual+k_last, k-k_last, rice_parameters[i]))
+					return false;
+			}
+			else {
+				if(!FLAC__bitwriter_write_raw_uint32(bw, pesc, plen))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, raw_bits[i], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
+					return false;
+				for(j = k_last; j < k; j++) {
+					if(!FLAC__bitwriter_write_raw_int32(bw, residual[j], raw_bits[i]))
+						return false;
+				}
+			}
+			k_last = k;
+		}
+		return true;
+	}
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_intrin_avx2.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_intrin_avx2.c
new file mode 100644
index 00000000..665f8036
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_intrin_avx2.c
@@ -0,0 +1,146 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/stream_encoder.h"
+#include "private/bitmath.h"
+#ifdef FLAC__AVX2_SUPPORTED
+
+#include <stdlib.h>    /* for abs() */
+#include <immintrin.h> /* AVX2 */
+#include "FLAC/assert.h"
+
+FLAC__SSE_TARGET("avx2")
+void FLAC__precompute_partition_info_sums_intrin_avx2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
+		uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps)
+{
+	const uint32_t default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
+	uint32_t partitions = 1u << max_partition_order;
+
+	FLAC__ASSERT(default_partition_samples > predictor_order);
+
+	/* first do max_partition_order */
+	{
+		const uint32_t threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
+		uint32_t partition, residual_sample, end = (uint32_t)(-(int32_t)predictor_order);
+
+		if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
+			for(partition = residual_sample = 0; partition < partitions; partition++) {
+				__m256i sum256 = _mm256_setzero_si256();
+				__m128i sum128;
+				end += default_partition_samples;
+
+				for( ; (int)residual_sample < (int)end-7; residual_sample+=8) {
+					__m256i res256 = _mm256_abs_epi32(_mm256_loadu_si256((const __m256i*)(const void*)(residual+residual_sample)));
+					sum256 = _mm256_add_epi32(sum256, res256);
+				}
+
+				sum128 = _mm_add_epi32(_mm256_extracti128_si256(sum256, 1), _mm256_castsi256_si128(sum256));
+
+				for( ; (int)residual_sample < (int)end-3; residual_sample+=4) {
+					__m128i res128 = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(const void*)(residual+residual_sample)));
+					sum128 = _mm_add_epi32(sum128, res128);
+				}
+
+				for( ; residual_sample < end; residual_sample++) {
+					__m128i res128 = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
+					sum128 = _mm_add_epi32(sum128, res128);
+				}
+
+				sum128 = _mm_add_epi32(sum128, _mm_shuffle_epi32(sum128, _MM_SHUFFLE(1,0,3,2)));
+				sum128 = _mm_add_epi32(sum128, _mm_shufflelo_epi16(sum128, _MM_SHUFFLE(1,0,3,2)));
+				abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(sum128);
+/* workaround for MSVC bugs (at least versions 2015 and 2017 are affected) */
+#if (defined _MSC_VER) && (defined FLAC__CPU_X86_64)
+				abs_residual_partition_sums[partition] &= 0xFFFFFFFF; /**/
+#endif
+			}
+		}
+		else { /* have to pessimistically use 64 bits for accumulator */
+			for(partition = residual_sample = 0; partition < partitions; partition++) {
+				__m256i sum256 = _mm256_setzero_si256();
+				__m128i sum128;
+				end += default_partition_samples;
+
+				for( ; (int)residual_sample < (int)end-3; residual_sample+=4) {
+					__m128i res128 = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(const void*)(residual+residual_sample)));
+					__m256i res256 = _mm256_cvtepu32_epi64(res128);
+					sum256 = _mm256_add_epi64(sum256, res256);
+				}
+
+				sum128 = _mm_add_epi64(_mm256_extracti128_si256(sum256, 1), _mm256_castsi256_si128(sum256));
+
+				for( ; (int)residual_sample < (int)end-1; residual_sample+=2) {
+					__m128i res128 = _mm_abs_epi32(_mm_loadl_epi64((const __m128i*)(const void*)(residual+residual_sample)));
+					res128 = _mm_cvtepu32_epi64(res128);
+					sum128 = _mm_add_epi64(sum128, res128);
+				}
+
+				for( ; residual_sample < end; residual_sample++) {
+					__m128i res128 = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
+					sum128 = _mm_add_epi64(sum128, res128);
+				}
+
+				sum128 = _mm_add_epi64(sum128, _mm_srli_si128(sum128, 8));
+				_mm_storel_epi64((__m128i*)(void*)(abs_residual_partition_sums+partition), sum128);
+			}
+		}
+	}
+
+	/* now merge partitions for lower orders */
+	{
+		uint32_t from_partition = 0, to_partition = partitions;
+		int partition_order;
+		for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
+			uint32_t i;
+			partitions >>= 1;
+			for(i = 0; i < partitions; i++) {
+				abs_residual_partition_sums[to_partition++] =
+					abs_residual_partition_sums[from_partition  ] +
+					abs_residual_partition_sums[from_partition+1];
+				from_partition += 2;
+			}
+		}
+	}
+	_mm256_zeroupper();
+}
+
+#endif /* FLAC__AVX2_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_intrin_sse2.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_intrin_sse2.c
new file mode 100644
index 00000000..fdab55b8
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_intrin_sse2.c
@@ -0,0 +1,159 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/stream_encoder.h"
+#include "private/bitmath.h"
+#ifdef FLAC__SSE2_SUPPORTED
+
+#include <stdlib.h>    /* for abs() */
+#include <emmintrin.h> /* SSE2 */
+#include "FLAC/assert.h"
+#include "share/compat.h"
+
+FLAC__SSE_TARGET("sse2")
+static inline __m128i local_abs_epi32(__m128i val)
+{
+	__m128i mask = _mm_srai_epi32(val, 31);
+	val = _mm_xor_si128(val, mask);
+	val = _mm_sub_epi32(val, mask);
+	return val;
+}
+
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__precompute_partition_info_sums_intrin_sse2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
+		uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps)
+{
+	const uint32_t default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
+	uint32_t partitions = 1u << max_partition_order;
+
+	FLAC__ASSERT(default_partition_samples > predictor_order);
+
+	/* first do max_partition_order */
+	{
+		const uint32_t threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
+		uint32_t partition, residual_sample, end = (uint32_t)(-(int32_t)predictor_order);
+
+		if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
+			for(partition = residual_sample = 0; partition < partitions; partition++) {
+				__m128i mm_sum = _mm_setzero_si128();
+				uint32_t e1, e3;
+				end += default_partition_samples;
+
+				e1 = (residual_sample + 3) & ~3; e3 = end & ~3;
+				if(e1 > end)
+					e1 = end; /* try flac -l 1 -b 16 and you'll be here */
+
+				/* assumption: residual[] is properly aligned so (residual + e1) is properly aligned too and _mm_loadu_si128() is fast */
+				for( ; residual_sample < e1; residual_sample++) {
+					__m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
+					mm_sum = _mm_add_epi32(mm_sum, mm_res);
+				}
+
+				for( ; residual_sample < e3; residual_sample+=4) {
+					__m128i mm_res = local_abs_epi32(_mm_loadu_si128((const __m128i*)(const void*)(residual+residual_sample)));
+					mm_sum = _mm_add_epi32(mm_sum, mm_res);
+				}
+
+				for( ; residual_sample < end; residual_sample++) {
+					__m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
+					mm_sum = _mm_add_epi32(mm_sum, mm_res);
+				}
+
+				mm_sum = _mm_add_epi32(mm_sum, _mm_shuffle_epi32(mm_sum, _MM_SHUFFLE(1,0,3,2)));
+				mm_sum = _mm_add_epi32(mm_sum, _mm_shufflelo_epi16(mm_sum, _MM_SHUFFLE(1,0,3,2)));
+				abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(mm_sum);
+/* workaround for MSVC bugs (at least versions 2015 and 2017 are affected) */
+#if (defined _MSC_VER) && (defined FLAC__CPU_X86_64)
+				abs_residual_partition_sums[partition] &= 0xFFFFFFFF;
+#endif
+			}
+		}
+		else { /* have to pessimistically use 64 bits for accumulator */
+			for(partition = residual_sample = 0; partition < partitions; partition++) {
+				__m128i mm_sum = _mm_setzero_si128();
+				uint32_t e1, e3;
+				end += default_partition_samples;
+
+				e1 = (residual_sample + 1) & ~1; e3 = end & ~1;
+				FLAC__ASSERT(e1 <= end);
+
+				for( ; residual_sample < e1; residual_sample++) {
+					__m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample])); /*  0   0   0  |r0|  ==   00   |r0_64| */
+					mm_sum = _mm_add_epi64(mm_sum, mm_res);
+				}
+
+				for( ; residual_sample < e3; residual_sample+=2) {
+					__m128i mm_res = local_abs_epi32(_mm_loadl_epi64((const __m128i*)(const void*)(residual+residual_sample))); /*  0   0  |r1|   |r0| */
+					mm_res = _mm_shuffle_epi32(mm_res, _MM_SHUFFLE(3,1,2,0)); /* 0  |r1|  0  |r0|  ==  |r1_64|  |r0_64|  */
+					mm_sum = _mm_add_epi64(mm_sum, mm_res);
+				}
+
+				for( ; residual_sample < end; residual_sample++) {
+					__m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
+					mm_sum = _mm_add_epi64(mm_sum, mm_res);
+				}
+
+				mm_sum = _mm_add_epi64(mm_sum, _mm_srli_si128(mm_sum, 8));
+				_mm_storel_epi64((__m128i*)(void*)(abs_residual_partition_sums+partition), mm_sum);
+			}
+		}
+	}
+
+	/* now merge partitions for lower orders */
+	{
+		uint32_t from_partition = 0, to_partition = partitions;
+		int partition_order;
+		for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
+			uint32_t i;
+			partitions >>= 1;
+			for(i = 0; i < partitions; i++) {
+				abs_residual_partition_sums[to_partition++] =
+					abs_residual_partition_sums[from_partition  ] +
+					abs_residual_partition_sums[from_partition+1];
+				from_partition += 2;
+			}
+		}
+	}
+}
+
+#endif /* FLAC__SSE2_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_intrin_ssse3.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_intrin_ssse3.c
new file mode 100644
index 00000000..6f217521
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/stream_encoder_intrin_ssse3.c
@@ -0,0 +1,148 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/stream_encoder.h"
+#include "private/bitmath.h"
+#ifdef FLAC__SSSE3_SUPPORTED
+
+#include <stdlib.h>    /* for abs() */
+#include <tmmintrin.h> /* SSSE3 */
+#include "FLAC/assert.h"
+
+FLAC__SSE_TARGET("ssse3")
+void FLAC__precompute_partition_info_sums_intrin_ssse3(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
+		uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps)
+{
+	const uint32_t default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
+	uint32_t partitions = 1u << max_partition_order;
+
+	FLAC__ASSERT(default_partition_samples > predictor_order);
+
+	/* first do max_partition_order */
+	{
+		const uint32_t threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
+		uint32_t partition, residual_sample, end = (uint32_t)(-(int32_t)predictor_order);
+
+		if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
+			for(partition = residual_sample = 0; partition < partitions; partition++) {
+				__m128i mm_sum = _mm_setzero_si128();
+				uint32_t e1, e3;
+				end += default_partition_samples;
+
+				e1 = (residual_sample + 3) & ~3; e3 = end & ~3;
+				if(e1 > end)
+					e1 = end; /* try flac -l 1 -b 16 and you'll be here */
+
+				/* assumption: residual[] is properly aligned so (residual + e1) is properly aligned too and _mm_loadu_si128() is fast */
+				for( ; residual_sample < e1; residual_sample++) {
+					__m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
+					mm_sum = _mm_add_epi32(mm_sum, mm_res);
+				}
+
+				for( ; residual_sample < e3; residual_sample+=4) {
+					__m128i mm_res = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(const void*)(residual+residual_sample)));
+					mm_sum = _mm_add_epi32(mm_sum, mm_res);
+				}
+
+				for( ; residual_sample < end; residual_sample++) {
+					__m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
+					mm_sum = _mm_add_epi32(mm_sum, mm_res);
+				}
+
+				mm_sum = _mm_add_epi32(mm_sum, _mm_shuffle_epi32(mm_sum, _MM_SHUFFLE(1,0,3,2)));
+				mm_sum = _mm_add_epi32(mm_sum, _mm_shufflelo_epi16(mm_sum, _MM_SHUFFLE(1,0,3,2)));
+				abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(mm_sum);
+/* workaround for MSVC bugs (at least versions 2015 and 2017 are affected) */
+#if (defined _MSC_VER) && (defined FLAC__CPU_X86_64)
+				abs_residual_partition_sums[partition] &= 0xFFFFFFFF;
+#endif
+			}
+		}
+		else { /* have to pessimistically use 64 bits for accumulator */
+			for(partition = residual_sample = 0; partition < partitions; partition++) {
+				__m128i mm_sum = _mm_setzero_si128();
+				uint32_t e1, e3;
+				end += default_partition_samples;
+
+				e1 = (residual_sample + 1) & ~1; e3 = end & ~1;
+				FLAC__ASSERT(e1 <= end);
+
+				for( ; residual_sample < e1; residual_sample++) {
+					__m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample])); /*  0   0   0  |r0|  ==   00   |r0_64| */
+					mm_sum = _mm_add_epi64(mm_sum, mm_res);
+				}
+
+				for( ; residual_sample < e3; residual_sample+=2) {
+					__m128i mm_res = _mm_abs_epi32(_mm_loadl_epi64((const __m128i*)(const void*)(residual+residual_sample))); /*  0   0  |r1|   |r0| */
+					mm_res = _mm_shuffle_epi32(mm_res, _MM_SHUFFLE(3,1,2,0)); /* 0  |r1|  0  |r0|  ==  |r1_64|  |r0_64|  */
+					mm_sum = _mm_add_epi64(mm_sum, mm_res);
+				}
+
+				for( ; residual_sample < end; residual_sample++) {
+					__m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
+					mm_sum = _mm_add_epi64(mm_sum, mm_res);
+				}
+
+				mm_sum = _mm_add_epi64(mm_sum, _mm_srli_si128(mm_sum, 8));
+				_mm_storel_epi64((__m128i*)(void*)(abs_residual_partition_sums+partition), mm_sum);
+			}
+		}
+	}
+
+	/* now merge partitions for lower orders */
+	{
+		uint32_t from_partition = 0, to_partition = partitions;
+		int partition_order;
+		for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
+			uint32_t i;
+			partitions >>= 1;
+			for(i = 0; i < partitions; i++) {
+				abs_residual_partition_sums[to_partition++] =
+					abs_residual_partition_sums[from_partition  ] +
+					abs_residual_partition_sums[from_partition+1];
+				from_partition += 2;
+			}
+		}
+	}
+}
+
+#endif /* FLAC__SSSE3_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/window.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/window.c
new file mode 100644
index 00000000..4ee6f79d
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/window.c
@@ -0,0 +1,308 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2006-2009  Josh Coalson
+ * Copyright (C) 2011-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <math.h>
+#include "share/compat.h"
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+#include "private/window.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+#if defined(_MSC_VER)
+// silence 25 MSVC warnings 'conversion from 'double' to 'float', possible loss of data'
+#pragma warning ( disable : 4244 )
+#endif
+
+void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	FLAC__int32 n;
+
+	if (L & 1) {
+		for (n = 0; n <= N/2; n++)
+			window[n] = 2.0f * n / (float)N;
+		for (; n <= N; n++)
+			window[n] = 2.0f - 2.0f * n / (float)N;
+	}
+	else {
+		for (n = 0; n <= L/2-1; n++)
+			window[n] = 2.0f * n / (float)N;
+		for (; n <= N; n++)
+			window[n] = 2.0f - 2.0f * n / (float)N;
+	}
+}
+
+void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	FLAC__int32 n;
+
+	for (n = 0; n < L; n++)
+		window[n] = (FLAC__real)(0.62f - 0.48f * fabsf((float)n/(float)N-0.5f) - 0.38f * cosf(2.0f * M_PI * ((float)n/(float)N)));
+}
+
+void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	FLAC__int32 n;
+
+	for (n = 0; n < L; n++)
+		window[n] = (FLAC__real)(0.42f - 0.5f * cosf(2.0f * M_PI * n / N) + 0.08f * cosf(4.0f * M_PI * n / N));
+}
+
+/* 4-term -92dB side-lobe */
+void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	FLAC__int32 n;
+
+	for (n = 0; n <= N; n++)
+		window[n] = (FLAC__real)(0.35875f - 0.48829f * cosf(2.0f * M_PI * n / N) + 0.14128f * cosf(4.0f * M_PI * n / N) - 0.01168f * cosf(6.0f * M_PI * n / N));
+}
+
+void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	const double N2 = (double)N / 2.;
+	FLAC__int32 n;
+
+	for (n = 0; n <= N; n++) {
+		double k = ((double)n - N2) / N2;
+		k = 1.0f - k * k;
+		window[n] = (FLAC__real)(k * k);
+	}
+}
+
+void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	FLAC__int32 n;
+
+	for (n = 0; n < L; n++)
+		window[n] = (FLAC__real)(0.21557895f - 0.41663158f * cosf(2.0f * M_PI * n / N) + 0.277263158f * cosf(4.0f * M_PI * n / N) - 0.083578947f * cosf(6.0f * M_PI * n / N) + 0.006947368f * cosf(8.0f * M_PI * n / N));
+}
+
+void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev)
+{
+	const FLAC__int32 N = L - 1;
+	const double N2 = (double)N / 2.;
+	FLAC__int32 n;
+
+	if(!(stddev > 0.0f && stddev <= 0.5f))
+		/* stddev is not between 0 and 0.5, might be NaN.
+		 * Default to 0.5 */
+		FLAC__window_gauss(window, L, 0.25f);
+	else {
+		for (n = 0; n <= N; n++) {
+			const double k = ((double)n - N2) / (stddev * N2);
+			window[n] = (FLAC__real)exp(-0.5f * k * k);
+		}
+	}
+}
+
+void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	FLAC__int32 n;
+
+	for (n = 0; n < L; n++)
+		window[n] = (FLAC__real)(0.54f - 0.46f * cosf(2.0f * M_PI * n / N));
+}
+
+void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	FLAC__int32 n;
+
+	for (n = 0; n < L; n++)
+		window[n] = (FLAC__real)(0.5f - 0.5f * cosf(2.0f * M_PI * n / N));
+}
+
+void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	FLAC__int32 n;
+
+	for (n = 0; n < L; n++)
+		window[n] = (FLAC__real)(0.402f - 0.498f * cosf(2.0f * M_PI * n / N) + 0.098f * cosf(4.0f * M_PI * n / N) - 0.001f * cosf(6.0f * M_PI * n / N));
+}
+
+void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	FLAC__int32 n;
+
+	for (n = 0; n < L; n++)
+		window[n] = (FLAC__real)(0.3635819f - 0.4891775f*cosf(2.0f*M_PI*n/N) + 0.1365995f*cosf(4.0f*M_PI*n/N) - 0.0106411f*cosf(6.0f*M_PI*n/N));
+}
+
+void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L)
+{
+	FLAC__int32 n;
+
+	for (n = 0; n < L; n++)
+		window[n] = 1.0f;
+}
+
+void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L)
+{
+	FLAC__int32 n;
+
+	if (L & 1) {
+		for (n = 1; n <= (L+1)/2; n++)
+			window[n-1] = 2.0f * n / ((float)L + 1.0f);
+		for (; n <= L; n++)
+			window[n-1] = (float)(2 * (L - n + 1)) / ((float)L + 1.0f);
+	}
+	else {
+		for (n = 1; n <= L/2; n++)
+			window[n-1] = 2.0f * n / ((float)L + 1.0f);
+		for (; n <= L; n++)
+			window[n-1] = (float)(2 * (L - n + 1)) / ((float)L + 1.0f);
+	}
+}
+
+void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p)
+{
+	if (p <= 0.0)
+		FLAC__window_rectangle(window, L);
+	else if (p >= 1.0)
+		FLAC__window_hann(window, L);
+	else if (!(p > 0.0f && p < 1.0f))
+		/* p is not between 0 and 1, probably NaN.
+		 * Default to 0.5 */
+		FLAC__window_tukey(window, L, 0.5f);
+	else {
+		const FLAC__int32 Np = (FLAC__int32)(p / 2.0f * L) - 1;
+		FLAC__int32 n;
+		/* start with rectangle... */
+		FLAC__window_rectangle(window, L);
+		/* ...replace ends with hann */
+		if (Np > 0) {
+			for (n = 0; n <= Np; n++) {
+				window[n] = (FLAC__real)(0.5f - 0.5f * cosf(M_PI * n / Np));
+				window[L-Np-1+n] = (FLAC__real)(0.5f - 0.5f * cosf(M_PI * (n+Np) / Np));
+			}
+		}
+	}
+}
+
+void FLAC__window_partial_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end)
+{
+	const FLAC__int32 start_n = (FLAC__int32)(start * L);
+	const FLAC__int32 end_n = (FLAC__int32)(end * L);
+	const FLAC__int32 N = end_n - start_n;
+	FLAC__int32 Np, n, i;
+
+	if (p <= 0.0f)
+		FLAC__window_partial_tukey(window, L, 0.05f, start, end);
+	else if (p >= 1.0f)
+		FLAC__window_partial_tukey(window, L, 0.95f, start, end);
+	else if (!(p > 0.0f && p < 1.0f))
+		/* p is not between 0 and 1, probably NaN.
+		 * Default to 0.5 */
+		FLAC__window_partial_tukey(window, L, 0.5f, start, end);
+	else {
+
+		Np = (FLAC__int32)(p / 2.0f * N);
+
+		for (n = 0; n < start_n && n < L; n++)
+			window[n] = 0.0f;
+		for (i = 1; n < (start_n+Np) && n < L; n++, i++)
+			window[n] = (FLAC__real)(0.5f - 0.5f * cosf(M_PI * i / Np));
+		for (; n < (end_n-Np) && n < L; n++)
+			window[n] = 1.0f;
+		for (i = Np; n < end_n && n < L; n++, i--)
+			window[n] = (FLAC__real)(0.5f - 0.5f * cosf(M_PI * i / Np));
+		for (; n < L; n++)
+			window[n] = 0.0f;
+	}
+}
+
+void FLAC__window_punchout_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end)
+{
+	const FLAC__int32 start_n = (FLAC__int32)(start * L);
+	const FLAC__int32 end_n = (FLAC__int32)(end * L);
+	FLAC__int32 Ns, Ne, n, i;
+
+	if (p <= 0.0f)
+		FLAC__window_punchout_tukey(window, L, 0.05f, start, end);
+	else if (p >= 1.0f)
+		FLAC__window_punchout_tukey(window, L, 0.95f, start, end);
+	else if (!(p > 0.0f && p < 1.0f))
+		/* p is not between 0 and 1, probably NaN.
+		 * Default to 0.5 */
+		FLAC__window_punchout_tukey(window, L, 0.5f, start, end);
+	else {
+
+		Ns = (FLAC__int32)(p / 2.0f * start_n);
+		Ne = (FLAC__int32)(p / 2.0f * (L - end_n));
+
+		for (n = 0, i = 1; n < Ns && n < L; n++, i++)
+			window[n] = (FLAC__real)(0.5f - 0.5f * cosf(M_PI * i / Ns));
+		for (; n < start_n-Ns && n < L; n++)
+			window[n] = 1.0f;
+		for (i = Ns; n < start_n && n < L; n++, i--)
+			window[n] = (FLAC__real)(0.5f - 0.5f * cosf(M_PI * i / Ns));
+		for (; n < end_n && n < L; n++)
+			window[n] = 0.0f;
+		for (i = 1; n < end_n+Ne && n < L; n++, i++)
+			window[n] = (FLAC__real)(0.5f - 0.5f * cosf(M_PI * i / Ne));
+		for (; n < L - (Ne) && n < L; n++)
+			window[n] = 1.0f;
+		for (i = Ne; n < L; n++, i--)
+			window[n] = (FLAC__real)(0.5f - 0.5f * cosf(M_PI * i / Ne));
+	}
+}
+
+void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L)
+{
+	const FLAC__int32 N = L - 1;
+	const double N2 = (double)N / 2.;
+	FLAC__int32 n;
+
+	for (n = 0; n <= N; n++) {
+		const double k = ((double)n - N2) / N2;
+		window[n] = (FLAC__real)(1.0f - k * k);
+	}
+}
+
+#if defined(_MSC_VER)
+#pragma warning ( default : 4244 )
+#endif
+
+#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/windows_unicode_filenames.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/windows_unicode_filenames.c
new file mode 100644
index 00000000..bf3bfe16
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/libFLAC/windows_unicode_filenames.c
@@ -0,0 +1,187 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2013-2016  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <io.h>
+#include <windows.h>
+#include "share/windows_unicode_filenames.h"
+
+/*** FIXME: KLUDGE: export these syms for flac.exe, metaflac.exe, etc. ***/
+
+/* convert UTF-8 back to WCHAR. Caller is responsible for freeing memory */
+static wchar_t *wchar_from_utf8(const char *str)
+{
+	wchar_t *widestr;
+	int len;
+
+	if (!str)
+		return NULL;
+	if ((len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0)) == 0)
+		return NULL;
+	if ((widestr = (wchar_t *)malloc(len*sizeof(wchar_t))) == NULL)
+		return NULL;
+	if (MultiByteToWideChar(CP_UTF8, 0, str, -1, widestr, len) == 0) {
+		free(widestr);
+		widestr = NULL;
+	}
+
+	return widestr;
+}
+
+
+static FLAC__bool utf8_filenames = false;
+
+
+FLAC_API void flac_internal_set_utf8_filenames(FLAC__bool flag)
+{
+	utf8_filenames = flag ? true : false;
+}
+
+FLAC_API FLAC__bool flac_internal_get_utf8_filenames(void)
+{
+	return utf8_filenames;
+}
+
+/* file functions */
+
+FLAC_API FILE* flac_internal_fopen_utf8(const char *filename, const char *mode)
+{
+	if (!utf8_filenames) {
+		return fopen(filename, mode);
+	} else {
+		wchar_t *wname = NULL;
+		wchar_t *wmode = NULL;
+		FILE *f = NULL;
+
+		do {
+			if (!(wname = wchar_from_utf8(filename))) break;
+			if (!(wmode = wchar_from_utf8(mode))) break;
+			f = _wfopen(wname, wmode);
+		} while(0);
+
+		free(wname);
+		free(wmode);
+
+		return f;
+	}
+}
+
+FLAC_API int flac_internal_stat64_utf8(const char *path, struct __stat64 *buffer)
+{
+	if (!utf8_filenames) {
+		return _stat64(path, buffer);
+	} else {
+		wchar_t *wpath;
+		int ret;
+
+		if (!(wpath = wchar_from_utf8(path))) return -1;
+		ret = _wstat64(wpath, buffer);
+		free(wpath);
+
+		return ret;
+	}
+}
+
+FLAC_API int flac_internal_chmod_utf8(const char *filename, int pmode)
+{
+	if (!utf8_filenames) {
+		return _chmod(filename, pmode);
+	} else {
+		wchar_t *wname;
+		int ret;
+
+		if (!(wname = wchar_from_utf8(filename))) return -1;
+		ret = _wchmod(wname, pmode);
+		free(wname);
+
+		return ret;
+	}
+}
+
+FLAC_API int flac_internal_utime_utf8(const char *filename, struct utimbuf *times)
+{
+	if (!utf8_filenames) {
+		return utime(filename, times);
+	} else {
+		wchar_t *wname;
+		struct __utimbuf64 ut;
+		int ret;
+
+		if (!(wname = wchar_from_utf8(filename))) return -1;
+		ut.actime = times->actime;
+		ut.modtime = times->modtime;
+		ret = _wutime64(wname, &ut);
+		free(wname);
+
+		return ret;
+	}
+}
+
+FLAC_API int flac_internal_unlink_utf8(const char *filename)
+{
+	if (!utf8_filenames) {
+		return _unlink(filename);
+	} else {
+		wchar_t *wname;
+		int ret;
+
+		if (!(wname = wchar_from_utf8(filename))) return -1;
+		ret = _wunlink(wname);
+		free(wname);
+
+		return ret;
+	}
+}
+
+FLAC_API int flac_internal_rename_utf8(const char *oldname, const char *newname)
+{
+	if (!utf8_filenames) {
+		return rename(oldname, newname);
+	} else {
+		wchar_t *wold = NULL;
+		wchar_t *wnew = NULL;
+		int ret = -1;
+
+		do {
+			if (!(wold = wchar_from_utf8(oldname))) break;
+			if (!(wnew = wchar_from_utf8(newname))) break;
+			ret = _wrename(wold, wnew);
+		} while(0);
+
+		free(wold);
+		free(wnew);
+
+		return ret;
+	}
+}
diff --git a/Src/external_dependencies/openmpt-trunk/include/flac/src/share/win_utf8_io/win_utf8_io.c b/Src/external_dependencies/openmpt-trunk/include/flac/src/share/win_utf8_io/win_utf8_io.c
new file mode 100644
index 00000000..65b56997
--- /dev/null
+++ b/Src/external_dependencies/openmpt-trunk/include/flac/src/share/win_utf8_io/win_utf8_io.c
@@ -0,0 +1,380 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2013-2022  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <io.h>
+#include <windows.h>
+#include "share/win_utf8_io.h"
+
+#define UTF8_BUFFER_SIZE 32768
+
+#if !defined(WINAPI_FAMILY_PARTITION)
+#define WINAPI_FAMILY_PARTITION(x) x
+#define WINAPI_PARTITION_DESKTOP 1
+#endif
+
+static int local_vsnprintf(char *str, size_t size, const char *fmt, va_list va)
+{
+	int rc;
+
+#if defined _MSC_VER
+	if (size == 0)
+		return 1024;
+	rc = vsnprintf_s(str, size, _TRUNCATE, fmt, va);
+	if (rc < 0)
+		rc = size - 1;
+#elif defined __MINGW32__
+	rc = __mingw_vsnprintf(str, size, fmt, va);
+#else
+	rc = vsnprintf(str, size, fmt, va);
+#endif
+
+	return rc;
+}
+
+/* convert WCHAR stored Unicode string to UTF-8. Caller is responsible for freeing memory */
+static char *utf8_from_wchar(const wchar_t *wstr)
+{
+	char *utf8str;
+	int len;
+
+	if (!wstr)
+		return NULL;
+	if ((len = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL)) == 0)
+		return NULL;
+	if ((utf8str = (char *)malloc(len)) == NULL)
+		return NULL;
+	if (WideCharToMultiByte(CP_UTF8, 0, wstr, -1, utf8str, len, NULL, NULL) == 0) {
+		free(utf8str);
+		utf8str = NULL;
+	}
+
+	return utf8str;
+}
+
+/* convert UTF-8 back to WCHAR. Caller is responsible for freeing memory */
+static wchar_t *wchar_from_utf8(const char *str)
+{
+	wchar_t *widestr;
+	int len;
+
+	if (!str)
+		return NULL;
+	if ((len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0)) == 0)
+		return NULL;
+	if ((widestr = (wchar_t *)malloc(len*sizeof(wchar_t))) == NULL)
+		return NULL;
+	if (MultiByteToWideChar(CP_UTF8, 0, str, -1, widestr, len) == 0) {
+		free(widestr);
+		widestr = NULL;
+	}
+
+	return widestr;
+}
+
+/* retrieve WCHAR commandline, expand wildcards and convert everything to UTF-8 */
+int get_utf8_argv(int *argc, char ***argv)
+{
+	typedef int (__cdecl *wgetmainargs_t)(int*, wchar_t***, wchar_t***, int, int*);
+	wgetmainargs_t wgetmainargs;
+	HMODULE handle;
+	int wargc;
+	wchar_t **wargv;
+	wchar_t **wenv;
+	char **utf8argv;
+	int ret, i;
+
+	if ((handle = LoadLibraryW(L"msvcrt.dll")) == NULL) return 1;
+	if ((wgetmainargs = (wgetmainargs_t)GetProcAddress(handle, "__wgetmainargs")) == NULL) {
+		FreeLibrary(handle);
+		return 1;
+	}
+	i = 0;
+	/* when the 4th argument is 1,  __wgetmainargs expands wildcards but also erroneously converts \\?\c:\path\to\file.flac to \\file.flac */
+	if (wgetmainargs(&wargc, &wargv, &wenv, 1, &i) != 0) {
+		FreeLibrary(handle);
+		return 1;
+	}
+	if ((utf8argv = (char **)calloc(wargc, sizeof(char*))) == NULL) {
+		FreeLibrary(handle);
+		return 1;
+	}
+
+	ret = 0;
+	for (i=0; i<wargc; i++) {
+		if ((utf8argv[i] = utf8_from_wchar(wargv[i])) == NULL) {
+			ret = 1;
+			break;
+		}
+	}
+
+	FreeLibrary(handle); /* do not free it when wargv or wenv are still in use */
+
+	if (ret == 0) {
+		*argc = wargc;
+		*argv = utf8argv;
+	} else {
+		for (i=0; i<wargc; i++)
+			free(utf8argv[i]);
+		free(utf8argv);
+	}
+
+	return ret;
+}
+
+/* similar to CreateFileW but accepts UTF-8 encoded lpFileName */
+HANDLE WINAPI CreateFile_utf8(const char *lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile)
+{
+	wchar_t *wname;
+	HANDLE handle = INVALID_HANDLE_VALUE;
+
+	if ((wname = wchar_from_utf8(lpFileName)) != NULL) {
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+		handle = CreateFileW(wname, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
+#else // !WINAPI_PARTITION_DESKTOP
+		CREATEFILE2_EXTENDED_PARAMETERS params;
+		params.dwSize = sizeof(params);
+		params.dwFileAttributes = dwFlagsAndAttributes & 0xFFFF;
+		params.dwFileFlags = dwFlagsAndAttributes & 0xFFF00000;
+		params.dwSecurityQosFlags = dwFlagsAndAttributes & 0x000F0000;
+		params.lpSecurityAttributes = lpSecurityAttributes;
+		params.hTemplateFile = hTemplateFile;
+		handle = CreateFile2(wname, dwDesiredAccess, dwShareMode, dwCreationDisposition, &params);
+#endif // !WINAPI_PARTITION_DESKTOP
+		free(wname);
+	}
+
+	return handle;
+}
+
+/* return number of characters in the UTF-8 string */
+size_t strlen_utf8(const char *str)
+{
+	size_t len;
+	len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0); /* includes terminating null */
+	if (len != 0)
+		return len-1;
+	else
+		return strlen(str);
+}
+
+/* get the console width in characters */
+int win_get_console_width(void)
+{
+	int width = 80;
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+	CONSOLE_SCREEN_BUFFER_INFO csbi;
+	HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
+	if(hOut != INVALID_HANDLE_VALUE && hOut != NULL)
+		if (GetConsoleScreenBufferInfo(hOut, &csbi) != 0)
+			width = csbi.dwSize.X;
+#endif // WINAPI_PARTITION_DESKTOP
+	return width;
+}
+
+/* print functions */
+
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+static int wprint_console(FILE *stream, const wchar_t *text, size_t len)
+{
+	DWORD out;
+	int ret;
+
+	do {
+		if (stream == stdout) {
+			HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
+			if (hOut == INVALID_HANDLE_VALUE || hOut == NULL || GetFileType(hOut) != FILE_TYPE_CHAR)
+				break;
+			if (WriteConsoleW(hOut, text, len, &out, NULL) == 0)
+				return -1;
+			return out;
+		}
+		if (stream == stderr) {
+			HANDLE hErr = GetStdHandle(STD_ERROR_HANDLE);
+			if (hErr == INVALID_HANDLE_VALUE || hErr == NULL || GetFileType(hErr) != FILE_TYPE_CHAR)
+				break;
+			if (WriteConsoleW(hErr, text, len, &out, NULL) == 0)
+				return -1;
+			return out;
+		}
+	} while(0);
+
+	ret = fputws(text, stream);
+	if (ret < 0)
+		return ret;
+	return len;
+}
+#endif // WINAPI_PARTITION_DESKTOP
+
+int printf_utf8(const char *format, ...)
+{
+	int ret;
+	va_list argptr;
+	va_start(argptr, format);
+
+	ret = vfprintf_utf8(stdout, format, argptr);
+
+	va_end(argptr);
+
+	return ret;
+}
+
+int fprintf_utf8(FILE *stream, const char *format, ...)
+{
+	int ret;
+	va_list argptr;
+	va_start(argptr, format);
+
+	ret = vfprintf_utf8(stream, format, argptr);
+
+	va_end(argptr);
+
+	return ret;
+}
+
+int vfprintf_utf8(FILE *stream, const char *format, va_list argptr)
+{
+	char *utmp = NULL;
+	wchar_t *wout = NULL;
+	int ret = -1;
+
+	do {
+		if (!(utmp = (char *)malloc(UTF8_BUFFER_SIZE))) break;
+		if ((ret = local_vsnprintf(utmp, UTF8_BUFFER_SIZE, format, argptr)) <= 0) break;
+		if (!(wout = wchar_from_utf8(utmp))) {
+			ret = -1;
+			break;
+		}
+#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+		ret = wprint_console(stream, wout, wcslen(wout));
+#else // !WINAPI_PARTITION_DESKTOP
+		OutputDebugStringW(wout);
+		ret = 0;
+#endif // !WINAPI_PARTITION_DESKTOP
+	} while(0);
+
+	free(utmp);
+	free(wout);
+
+	return ret;
+}
+
+/* file functions */
+
+FILE* fopen_utf8(const char *filename, const char *mode)
+{
+	wchar_t *wname = NULL;
+	wchar_t *wmode = NULL;
+	FILE *f = NULL;
+
+	do {
+		if (!(wname = wchar_from_utf8(filename))) break;
+		if (!(wmode = wchar_from_utf8(mode))) break;
+		f = _wfopen(wname, wmode);
+	} while(0);
+
+	free(wname);
+	free(wmode);
+
+	return f;
+}
+
+int stat64_utf8(const char *path, struct __stat64 *buffer)
+{
+	wchar_t *wpath;
+	int ret;
+
+	if (!(wpath = wchar_from_utf8(path))) return -1;
+	ret = _wstat64(wpath, buffer);
+	free(wpath);
+
+	return ret;
+}
+
+int chmod_utf8(const char *filename, int pmode)
+{
+	wchar_t *wname;
+	int ret;
+
+	if (!(wname = wchar_from_utf8(filename))) return -1;
+	ret = _wchmod(wname, pmode);
+	free(wname);
+
+	return ret;
+}
+
+int utime_utf8(const char *filename, struct utimbuf *times)
+{
+	wchar_t *wname;
+	struct __utimbuf64 ut;
+	int ret;
+
+	if (!(wname = wchar_from_utf8(filename))) return -1;
+	ut.actime = times->actime;
+	ut.modtime = times->modtime;
+	ret = _wutime64(wname, &ut);
+	free(wname);
+
+	return ret;
+}
+
+int unlink_utf8(const char *filename)
+{
+	wchar_t *wname;
+	int ret;
+
+	if (!(wname = wchar_from_utf8(filename))) return -1;
+	ret = _wunlink(wname);
+	free(wname);
+
+	return ret;
+}
+
+int rename_utf8(const char *oldname, const char *newname)
+{
+	wchar_t *wold = NULL;
+	wchar_t *wnew = NULL;
+	int ret = -1;
+
+	do {
+		if (!(wold = wchar_from_utf8(oldname))) break;
+		if (!(wnew = wchar_from_utf8(newname))) break;
+		ret = _wrename(wold, wnew);
+	} while(0);
+
+	free(wold);
+	free(wnew);
+
+	return ret;
+}