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/*
* StreamEncoderAU.cpp
* -------------------
* Purpose: Exporting streamed music files.
* Notes : none
* Authors: Joern Heusipp
* OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#include "stdafx.h"
#include "StreamEncoder.h"
#include "StreamEncoderAU.h"
#include "mpt/io/io.hpp"
#include "mpt/io/io_stdstream.hpp"
#include "Mptrack.h"
#include "TrackerSettings.h"
#include "../common/mptFileIO.h"
OPENMPT_NAMESPACE_BEGIN
class AUStreamWriter : public IAudioStreamEncoder
{
private:
const AUEncoder &enc;
std::ostream &f;
Encoder::Settings settings;
private:
static std::string TagToAnnotation(const std::string & field, const mpt::ustring & tag)
{
if(tag.empty())
{
return std::string();
}
return MPT_AFORMAT("{}={}\n")(field, mpt::ToCharset(mpt::Charset::UTF8, mpt::String::Replace(tag, U_("="), MPT_UTF8("\xEF\xBF\xBD")))); // U+FFFD
}
public:
AUStreamWriter(const AUEncoder &enc_, std::ostream &file, const Encoder::Settings &settings_, const FileTags &tags)
: enc(enc_)
, f(file)
, settings(settings_)
{
MPT_ASSERT(settings.Format.GetSampleFormat().IsValid());
MPT_ASSERT(settings.Samplerate > 0);
MPT_ASSERT(settings.Channels > 0);
std::string annotation;
std::size_t annotationSize = 0;
std::size_t annotationTotalSize = 8;
if(settings.Tags)
{
// same format as invented by sox and implemented by ffmpeg
annotation += TagToAnnotation("title", tags.title);
annotation += TagToAnnotation("artist", tags.artist);
annotation += TagToAnnotation("album", tags.album);
annotation += TagToAnnotation("track", tags.trackno);
annotation += TagToAnnotation("genre", tags.genre);
annotation += TagToAnnotation("comment", tags.comments);
annotationSize = annotation.length() + 1;
annotationTotalSize = annotationSize;
if(settings.Details.AUPaddingAlignHint > 0)
{
annotationTotalSize = mpt::align_up<std::size_t>(24u + annotationTotalSize, settings.Details.AUPaddingAlignHint) - 24u;
}
annotationTotalSize = mpt::align_up<std::size_t>(annotationTotalSize, 8u);
}
MPT_ASSERT(annotationTotalSize >= annotationSize);
MPT_ASSERT(annotationTotalSize % 8 == 0);
mpt::IO::WriteText(f, ".snd");
mpt::IO::WriteIntBE<uint32>(f, mpt::saturate_cast<uint32>(24u + annotationTotalSize));
mpt::IO::WriteIntBE<uint32>(f, ~uint32(0));
uint32 encoding = 0;
if(settings.Format.encoding == Encoder::Format::Encoding::Float)
{
switch(settings.Format.bits)
{
case 32: encoding = 6; break;
case 64: encoding = 7; break;
}
} else if(settings.Format.encoding == Encoder::Format::Encoding::Integer)
{
switch(settings.Format.bits)
{
case 8: encoding = 2; break;
case 16: encoding = 3; break;
case 24: encoding = 4; break;
case 32: encoding = 5; break;
}
} else if(settings.Format.encoding == Encoder::Format::Encoding::Alaw)
{
encoding = 27;
} else if (settings.Format.encoding == Encoder::Format::Encoding::ulaw)
{
encoding = 1;
}
mpt::IO::WriteIntBE<uint32>(f, encoding);
mpt::IO::WriteIntBE<uint32>(f, settings.Samplerate);
mpt::IO::WriteIntBE<uint32>(f, settings.Channels);
if(annotationSize > 0)
{
mpt::IO::WriteText(f, annotation);
mpt::IO::WriteIntBE<uint8>(f, '\0');
}
for(std::size_t i = 0; i < annotationTotalSize - annotationSize; ++i)
{
mpt::IO::WriteIntBE<uint8>(f, '\0');
}
}
SampleFormat GetSampleFormat() const override
{
return settings.Format.GetSampleFormat();
}
void WriteInterleaved(std::size_t frameCount, const double *interleaved) override
{
WriteInterleavedBE(f, settings.Channels, settings.Format, frameCount, interleaved);
}
void WriteInterleaved(std::size_t frameCount, const float *interleaved) override
{
WriteInterleavedBE(f, settings.Channels, settings.Format, frameCount, interleaved);
}
void WriteInterleaved(std::size_t frameCount, const int32 *interleaved) override
{
WriteInterleavedBE(f, settings.Channels, settings.Format, frameCount, interleaved);
}
void WriteInterleaved(std::size_t frameCount, const int24 *interleaved) override
{
WriteInterleavedBE(f, settings.Channels, settings.Format, frameCount, interleaved);
}
void WriteInterleaved(std::size_t frameCount, const int16 *interleaved) override
{
WriteInterleavedBE(f, settings.Channels, settings.Format, frameCount, interleaved);
}
void WriteInterleaved(std::size_t frameCount, const int8 *interleaved) override
{
WriteInterleavedBE(f, settings.Channels, settings.Format, frameCount, interleaved);
}
void WriteInterleaved(std::size_t frameCount, const uint8 *interleaved) override
{
WriteInterleavedBE(f, settings.Channels, settings.Format, frameCount, interleaved);
}
void WriteCues(const std::vector<uint64> &cues) override
{
MPT_UNREFERENCED_PARAMETER(cues);
}
void WriteFinalize() override
{
return;
}
virtual ~AUStreamWriter()
{
return;
}
};
AUEncoder::AUEncoder()
{
Encoder::Traits traits;
traits.fileExtension = P_("au");
traits.fileShortDescription = U_("AU");
traits.fileDescription = U_("NeXT/Sun Audio");
traits.encoderSettingsName = U_("AU");
traits.canTags = true;
traits.canCues = false;
traits.maxChannels = 4;
traits.samplerates = TrackerSettings::Instance().GetSampleRates();
traits.modes = Encoder::ModeLossless;
traits.formats.push_back({ Encoder::Format::Encoding::Float, 64, mpt::endian::big });
traits.formats.push_back({ Encoder::Format::Encoding::Float, 32, mpt::endian::big });
traits.formats.push_back({ Encoder::Format::Encoding::Integer, 32, mpt::endian::big });
traits.formats.push_back({ Encoder::Format::Encoding::Integer, 24, mpt::endian::big });
traits.formats.push_back({ Encoder::Format::Encoding::Integer, 16, mpt::endian::big });
traits.formats.push_back({ Encoder::Format::Encoding::Integer, 8, mpt::endian::big });
traits.formats.push_back({ Encoder::Format::Encoding::Alaw, 16, mpt::endian::big });
traits.formats.push_back({ Encoder::Format::Encoding::ulaw, 16, mpt::endian::big });
traits.defaultSamplerate = 48000;
traits.defaultChannels = 2;
traits.defaultMode = Encoder::ModeLossless;
traits.defaultFormat = { Encoder::Format::Encoding::Float, 32, mpt::endian::big };
SetTraits(traits);
}
bool AUEncoder::IsAvailable() const
{
return true;
}
std::unique_ptr<IAudioStreamEncoder> AUEncoder::ConstructStreamEncoder(std::ostream &file, const Encoder::Settings &settings, const FileTags &tags) const
{
if(!IsAvailable())
{
return nullptr;
}
return std::make_unique<AUStreamWriter>(*this, file, settings, tags);
}
OPENMPT_NAMESPACE_END
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