gstreamer/gst/isomp4/ftypcc.h
Alex Ashley a965185dee qtdemux: Add support for the avc3 sample entry format of the AVC file format
Amendment 2 of ISO/IEC 14496-15 (AVC file format) is defining a new
structure for fragmented MP4 called "avc3". The principal difference
between AVC1 and AVC3 is the location of the codec initialisation
data (e.g. SPS, PPS). In AVC1 this data is placed in the initial
MOOV box (moov.trak.mdia.minf.stbl.stsd.avc1) but in AVC3 this data
goes in the first sample of every fragment (i.e. the first sample in
each mdat box).  The principal reason for avc3 is to make it easier
for client implementations, because it removes the requirement to
insert the SPS+PPS in to the decoder pipeline every time there is a
representation change.

This commit adds support for the "avc3" atom, which is almost identical
to the "avc1" atom, except it does not contain any SPS or PPS data.

https://bugzilla.gnome.org/show_bug.cgi?id=702004
2013-09-04 13:33:22 +02:00

68 lines
3 KiB
C

/* GStreamer
* Copyright (C) <2008> Thiago Sousa Santos <thiagoss@embedded.ufcg.edu.br>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/*
* Unless otherwise indicated, Source Code is licensed under MIT license.
* See further explanation attached in License Statement (distributed in the file
* LICENSE).
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* SOFTWARE.
*/
#ifndef __FTYP_CC_H__
#define __FTYP_CC_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define FOURCC_ftyp GST_MAKE_FOURCC('f','t','y','p')
#define FOURCC_isom GST_MAKE_FOURCC('i','s','o','m')
#define FOURCC_iso2 GST_MAKE_FOURCC('i','s','o','2')
#define FOURCC_mp41 GST_MAKE_FOURCC('m','p','4','1')
#define FOURCC_mp42 GST_MAKE_FOURCC('m','p','4','2')
#define FOURCC_mjp2 GST_MAKE_FOURCC('m','j','p','2')
#define FOURCC_3gp4 GST_MAKE_FOURCC('3','g','p','4')
#define FOURCC_3gp6 GST_MAKE_FOURCC('3','g','p','6')
#define FOURCC_3gg6 GST_MAKE_FOURCC('3','g','g','6')
#define FOURCC_3gr6 GST_MAKE_FOURCC('3','g','r','6')
#define FOURCC_3gg7 GST_MAKE_FOURCC('3','g','g','7')
#define FOURCC_avc1 GST_MAKE_FOURCC('a','v','c','1')
#define FOURCC_avc3 GST_MAKE_FOURCC('a','v','c','3')
#define FOURCC_qt__ GST_MAKE_FOURCC('q','t',' ',' ')
#define FOURCC_isml GST_MAKE_FOURCC('i','s','m','l')
#define FOURCC_piff GST_MAKE_FOURCC('p','i','f','f')
G_END_DECLS
#endif /* __FTYP_CC_H__ */