From 20d28e80a5c861a9d5f449ea911ab75b4f37ad0d Mon Sep 17 00:00:00 2001 From: Jef Date: Tue, 24 Sep 2024 14:54:57 +0200 Subject: Initial community commit --- Src/external_dependencies/libmp4v2/atom_enca.cpp | 61 ++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Src/external_dependencies/libmp4v2/atom_enca.cpp (limited to 'Src/external_dependencies/libmp4v2/atom_enca.cpp') diff --git a/Src/external_dependencies/libmp4v2/atom_enca.cpp b/Src/external_dependencies/libmp4v2/atom_enca.cpp new file mode 100644 index 00000000..3a8e9e03 --- /dev/null +++ b/Src/external_dependencies/libmp4v2/atom_enca.cpp @@ -0,0 +1,61 @@ +/* + * The contents of this file are subject to the Mozilla Public + * License Version 1.1 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS + * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or + * implied. See the License for the specific language governing + * rights and limitations under the License. + * + * The Original Code is MPEG4IP. + * + * The Initial Developer of the Original Code is Cisco Systems Inc. + * Portions created by Cisco Systems Inc. are + * Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved. + * + * Contributor(s): + * Dave Mackie dmackie@cisco.com + * Alix Marchandise-Franquet alix@cisco.com + */ + +#include "mp4common.h" + +MP4EncaAtom::MP4EncaAtom() + : MP4Atom("enca") +{ + AddReserved("reserved1", 6); /* 0 */ + + AddProperty( /* 1 */ + new MP4Integer16Property("dataReferenceIndex")); + + AddReserved("reserved2", 16); /* 2 */ + + AddProperty( /* 3 */ + new MP4Integer16Property("timeScale")); + + AddReserved("reserved3", 2); /* 4 */ + + ExpectChildAtom("esds", Required, OnlyOne); + ExpectChildAtom("sinf", Required, OnlyOne); +} + +void MP4EncaAtom::Generate() +{ + MP4Atom::Generate(); + + ((MP4Integer16Property*)m_pProperties[1])->SetValue(1); + + // property reserved2 has non-zero fixed values + static u_int8_t reserved2[16] = { + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x02, 0x00, 0x10, + 0x00, 0x00, 0x00, 0x00, + }; + m_pProperties[2]->SetReadOnly(false); + ((MP4BytesProperty*)m_pProperties[2])-> + SetValue(reserved2, sizeof(reserved2)); + m_pProperties[2]->SetReadOnly(true); +} -- cgit