libavformat/isom.c

   1 /*
   2  * ISO Media common code
   3  * Copyright (c) 2001 Fabrice Bellard
   4  * Copyright (c) 2002 Francois Revol <revol@free.fr>
   5  * Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
   6  *
   7  * This file is part of FFmpeg.
   8  *
   9  * FFmpeg is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * FFmpeg is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with FFmpeg; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #include "avformat.h"
  25 #include "internal.h"
  26 #include "isom.h"
  27 #include "libavcodec/mpeg4audio.h"
  28 #include "libavcodec/mpegaudiodata.h"
  29 #include "libavutil/avstring.h"
  30 #include "libavutil/intreadwrite.h"
  31
  32 /* http://www.mp4ra.org */
  33 /* ordered by muxing preference */
  34 const AVCodecTag ff_mp4_obj_type[] = {
  35     { AV_CODEC_ID_MOV_TEXT    , 0x08 },
  36     { AV_CODEC_ID_MPEG4       , 0x20 },
  37     { AV_CODEC_ID_H264        , 0x21 },
  38     { AV_CODEC_ID_HEVC        , 0x23 },
  39     { AV_CODEC_ID_AAC         , 0x40 },
  40     { AV_CODEC_ID_MP4ALS      , 0x40 }, /* 14496-3 ALS */
  41     { AV_CODEC_ID_MPEG2VIDEO  , 0x61 }, /* MPEG-2 Main */
  42     { AV_CODEC_ID_MPEG2VIDEO  , 0x60 }, /* MPEG-2 Simple */
  43     { AV_CODEC_ID_MPEG2VIDEO  , 0x62 }, /* MPEG-2 SNR */
  44     { AV_CODEC_ID_MPEG2VIDEO  , 0x63 }, /* MPEG-2 Spatial */
  45     { AV_CODEC_ID_MPEG2VIDEO  , 0x64 }, /* MPEG-2 High */
  46     { AV_CODEC_ID_MPEG2VIDEO  , 0x65 }, /* MPEG-2 422 */
  47     { AV_CODEC_ID_AAC         , 0x66 }, /* MPEG-2 AAC Main */
  48     { AV_CODEC_ID_AAC         , 0x67 }, /* MPEG-2 AAC Low */
  49     { AV_CODEC_ID_AAC         , 0x68 }, /* MPEG-2 AAC SSR */
  50     { AV_CODEC_ID_MP3         , 0x69 }, /* 13818-3 */
  51     { AV_CODEC_ID_MP2         , 0x69 }, /* 11172-3 */
  52     { AV_CODEC_ID_MPEG1VIDEO  , 0x6A }, /* 11172-2 */
  53     { AV_CODEC_ID_MP3         , 0x6B }, /* 11172-3 */
  54     { AV_CODEC_ID_MJPEG       , 0x6C }, /* 10918-1 */
  55     { AV_CODEC_ID_PNG         , 0x6D },
  56     { AV_CODEC_ID_JPEG2000    , 0x6E }, /* 15444-1 */
  57     { AV_CODEC_ID_VC1         , 0xA3 },
  58     { AV_CODEC_ID_DIRAC       , 0xA4 },
  59     { AV_CODEC_ID_AC3         , 0xA5 },
  60     { AV_CODEC_ID_EAC3        , 0xA6 },
  61     { AV_CODEC_ID_DTS         , 0xA9 }, /* mp4ra.org */
  62     { AV_CODEC_ID_VP9         , 0xC0 }, /* nonstandard, update when there is a standard value */
  63     { AV_CODEC_ID_TSCC2       , 0xD0 }, /* nonstandard, camtasia uses it */
  64     { AV_CODEC_ID_VORBIS      , 0xDD }, /* nonstandard, gpac uses it */
  65     { AV_CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* nonstandard, see unsupported-embedded-subs-2.mp4 */
  66     { AV_CODEC_ID_QCELP       , 0xE1 },
  67     { AV_CODEC_ID_MPEG4SYSTEMS, 0x01 },
  68     { AV_CODEC_ID_MPEG4SYSTEMS, 0x02 },
  69     { AV_CODEC_ID_NONE        ,    0 },
  70 };
  71
  72 const AVCodecTag ff_codec_movvideo_tags[] = {
  73 /*  { AV_CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
  74
  75     { AV_CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* uncompressed RGB */
  76     { AV_CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* uncompressed YUV422 */
  77     { AV_CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* uncompressed 8-bit 4:2:2 */
  78     { AV_CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2VUY but byte-swapped */
  79
  80     { AV_CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') },
  81     { AV_CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') },
  82     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') },
  83     { AV_CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') },
  84     { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
  85     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
  86     { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
  87     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },
  88     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },
  89     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '6', '4', 'a') },
  90     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'b', 'g') }, /* BOXX */
  91     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'r', 'g') },
  92     { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'y', 'v') },
  93     { AV_CODEC_ID_RAWVIDEO, MKTAG('N', 'O', '1', '6') },
  94     { AV_CODEC_ID_RAWVIDEO, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */
  95     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', '2', '0') }, /* Radius DV YUV PAL */
  96     { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', '1', '1') }, /* Radius DV YUV NTSC */
  97
  98     { AV_CODEC_ID_R10K,   MKTAG('R', '1', '0', 'k') }, /* uncompressed 10-bit RGB */
  99     { AV_CODEC_ID_R10K,   MKTAG('R', '1', '0', 'g') }, /* uncompressed 10-bit RGB */
 100     { AV_CODEC_ID_R210,   MKTAG('r', '2', '1', '0') }, /* uncompressed 10-bit RGB */
 101     { AV_CODEC_ID_AVUI,   MKTAG('A', 'V', 'U', 'I') }, /* AVID Uncompressed deinterleaved UYVY422 */
 102     { AV_CODEC_ID_AVRP,   MKTAG('A', 'V', 'r', 'p') }, /* Avid 1:1 10-bit RGB Packer */
 103     { AV_CODEC_ID_AVRP,   MKTAG('S', 'U', 'D', 'S') }, /* Avid DS Uncompressed */
 104     { AV_CODEC_ID_V210,   MKTAG('v', '2', '1', '0') }, /* uncompressed 10-bit 4:2:2 */
 105     { AV_CODEC_ID_V210,   MKTAG('b', 'x', 'y', '2') }, /* BOXX 10-bit 4:2:2 */
 106     { AV_CODEC_ID_V308,   MKTAG('v', '3', '0', '8') }, /* uncompressed  8-bit 4:4:4 */
 107     { AV_CODEC_ID_V408,   MKTAG('v', '4', '0', '8') }, /* uncompressed  8-bit 4:4:4:4 */
 108     { AV_CODEC_ID_V410,   MKTAG('v', '4', '1', '0') }, /* uncompressed 10-bit 4:4:4 */
 109     { AV_CODEC_ID_Y41P,   MKTAG('Y', '4', '1', 'P') }, /* uncompressed 12-bit 4:1:1 */
 110     { AV_CODEC_ID_YUV4,   MKTAG('y', 'u', 'v', '4') }, /* libquicktime packed yuv420p */
 111     { AV_CODEC_ID_TARGA_Y216, MKTAG('Y', '2', '1', '6') },
 112
 113     { AV_CODEC_ID_MJPEG,  MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
 114     { AV_CODEC_ID_MJPEG,  MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
 115     { AV_CODEC_ID_AVRN ,  MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
 116 /*  { AV_CODEC_ID_MJPEG,  MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
 117     { AV_CODEC_ID_MJPEG,  MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */
 118     { AV_CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
 119
 120     { AV_CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
 121     { AV_CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
 122     { AV_CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
 123     { AV_CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
 124
 125     { AV_CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
 126     { AV_CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
 127     { AV_CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
 128     { AV_CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
 129
 130     { AV_CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H.263 */
 131     { AV_CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H.263 ?? works */
 132
 133     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
 134     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
 135     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
 136     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
 137     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
 138     { AV_CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
 139     { AV_CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */
 140     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */
 141     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */
 142     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
 143     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') },
 144     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') },
 145     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
 146     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
 147     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */
 148
 149     { AV_CODEC_ID_VP3,     MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
 150     { AV_CODEC_ID_RPZA,    MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
 151     { AV_CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
 152     { AV_CODEC_ID_8BPS,    MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
 153     { AV_CODEC_ID_SMC,     MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
 154     { AV_CODEC_ID_QTRLE,   MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
 155     { AV_CODEC_ID_SGIRLE,  MKTAG('r', 'l', 'e', '1') }, /* SGI RLE 8-bit */
 156     { AV_CODEC_ID_MSRLE,   MKTAG('W', 'R', 'L', 'E') },
 157     { AV_CODEC_ID_QDRAW,   MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
 158
 159     { AV_CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },
 160
 161     { AV_CODEC_ID_HEVC, MKTAG('h', 'e', 'v', '1') }, /* HEVC/H.265 which indicates parameter sets may be in ES */
 162     { AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '1') }, /* HEVC/H.265 which indicates parameter sets shall not be in ES */
 163
 164     { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
 165     { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '2') },
 166     { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '3') },
 167     { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '4') },
 168     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'p') }, /* AVC-Intra  50M 720p24/30/60 */
 169     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'q') }, /* AVC-Intra  50M 720p25/50 */
 170     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '2') }, /* AVC-Intra  50M 1080p25/50 */
 171     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '3') }, /* AVC-Intra  50M 1080p24/30/60 */
 172     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '5') }, /* AVC-Intra  50M 1080i50 */
 173     { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '6') }, /* AVC-Intra  50M 1080i60 */
 174     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'p') }, /* AVC-Intra 100M 720p24/30/60 */
 175     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'q') }, /* AVC-Intra 100M 720p25/50 */
 176     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '2') }, /* AVC-Intra 100M 1080p25/50 */
 177     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '3') }, /* AVC-Intra 100M 1080p24/30/60 */
 178     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* AVC-Intra 100M 1080i50 */
 179     { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '6') }, /* AVC-Intra 100M 1080i60 */
 180     { AV_CODEC_ID_H264, MKTAG('A', 'V', 'i', 'n') }, /* AVC-Intra with implicit SPS/PPS */
 181     { AV_CODEC_ID_H264, MKTAG('a', 'i', 'v', 'x') }, /* XAVC 10-bit 4:2:2 */
 182     { AV_CODEC_ID_H264, MKTAG('r', 'v', '6', '4') }, /* X-Com Radvision */
 183
 184     { AV_CODEC_ID_VP9,  MKTAG('v', 'p', '0', '9') }, /* VP9 */
 185
 186     { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', ' ') },
 187     { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
 188     { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
 189     { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', '1', 'v') }, /* CoreMedia CMVideoCodecType */
 190     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */
 191     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG-2 HDV 720p30 */
 192     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG-2 HDV 1080i60 */
 193     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG-2 HDV 1080i50 */
 194     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '4') }, /* MPEG-2 HDV 720p24 */
 195     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG-2 HDV 720p25 */
 196     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG-2 HDV 1080p24 */
 197     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG-2 HDV 1080p25 */
 198     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG-2 HDV 1080p30 */
 199     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '9') }, /* MPEG-2 HDV 720p60 JVC */
 200     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', 'a') }, /* MPEG-2 HDV 720p50 */
 201     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG-2 IMX NTSC 525/60 50mb/s produced by FCP */
 202     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG-2 IMX PAL 625/50 50mb/s produced by FCP */
 203     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG-2 IMX NTSC 525/60 40mb/s produced by FCP */
 204     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG-2 IMX PAL 625/50 40mb/s produced by FCP */
 205     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG-2 IMX NTSC 525/60 30mb/s produced by FCP */
 206     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG-2 IMX PAL 625/50 30mb/s produced by FCP */
 207     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '1') }, /* XDCAM HD422 720p30 CBR */
 208     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '4') }, /* XDCAM HD422 720p24 CBR */
 209     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '5') }, /* XDCAM HD422 720p25 CBR */
 210     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */
 211     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */
 212     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */
 213     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */
 214     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */
 215     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */
 216     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */
 217     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */
 218     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */
 219     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */
 220     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */
 221     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */
 222     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */
 223     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */
 224     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */
 225     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */
 226     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */
 227     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */
 228     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */
 229     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */
 230     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */
 231     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */
 232     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', 'd') }, /* XDCAM HD 540p */
 233     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', '2') }, /* XDCAM HD422 540p */
 234     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
 235     { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', '2', 'v') }, /* FCP5 */
 236
 237     { AV_CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
 238
 239     { AV_CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
 240     { AV_CODEC_ID_TIFF,  MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
 241     { AV_CODEC_ID_GIF,   MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
 242     { AV_CODEC_ID_PNG,   MKTAG('p', 'n', 'g', ' ') },
 243     { AV_CODEC_ID_PNG,   MKTAG('M', 'N', 'G', ' ') },
 244
 245     { AV_CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
 246     { AV_CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },
 247
 248     { AV_CODEC_ID_DIRAC,     MKTAG('d', 'r', 'a', 'c') },
 249     { AV_CODEC_ID_DNXHD,     MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */
 250     { AV_CODEC_ID_DNXHD,     MKTAG('A', 'V', 'd', 'h') }, /* AVID DNxHR */
 251     { AV_CODEC_ID_H263,      MKTAG('H', '2', '6', '3') },
 252     { AV_CODEC_ID_MSMPEG4V3, MKTAG('3', 'I', 'V', 'D') }, /* 3ivx DivX Doctor */
 253     { AV_CODEC_ID_RAWVIDEO,  MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */
 254     { AV_CODEC_ID_RAWVIDEO,  MKTAG('A', 'V', 'u', 'p') },
 255     { AV_CODEC_ID_SGI,       MKTAG('s', 'g', 'i', ' ') }, /* SGI  */
 256     { AV_CODEC_ID_DPX,       MKTAG('d', 'p', 'x', ' ') }, /* DPX */
 257     { AV_CODEC_ID_EXR,       MKTAG('e', 'x', 'r', ' ') }, /* OpenEXR */
 258
 259     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */
 260     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */
 261     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */
 262     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */
 263     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */
 264     { AV_CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'x') }, /* Apple ProRes 4444 XQ */
 265     { AV_CODEC_ID_FLIC,   MKTAG('f', 'l', 'i', 'c') },
 266
 267     { AV_CODEC_ID_AIC, MKTAG('i', 'c', 'o', 'd') },
 268
 269     { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', '1') },
 270     { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', '5') },
 271     { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', 'Y') },
 272
 273     { AV_CODEC_ID_DXV, MKTAG('D', 'X', 'D', '3') },
 274     { AV_CODEC_ID_DXV, MKTAG('D', 'X', 'D', 'I') },
 275
 276     { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'R', 'G') },
 277     { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'R', 'A') },
 278     { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'G', '0') },
 279     { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '0') },
 280     { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '2') },
 281     { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '4') },
 282     { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', 'A') },
 283
 284     { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '0') },
 285     { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '1') },
 286     { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '2') },
 287     { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '3') },
 288     { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '4') },
 289     { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '5') },
 290     { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '6') },
 291     { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '7') },
 292
 293     { AV_CODEC_ID_NONE, 0 },
 294 };
 295
 296 const AVCodecTag ff_codec_movaudio_tags[] = {
 297     { AV_CODEC_ID_AAC,             MKTAG('m', 'p', '4', 'a') },
 298     { AV_CODEC_ID_AC3,             MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
 299     { AV_CODEC_ID_AC3,             MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */
 300     { AV_CODEC_ID_ADPCM_IMA_QT,    MKTAG('i', 'm', 'a', '4') },
 301     { AV_CODEC_ID_ALAC,            MKTAG('a', 'l', 'a', 'c') },
 302     { AV_CODEC_ID_AMR_NB,          MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
 303     { AV_CODEC_ID_AMR_WB,          MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
 304     { AV_CODEC_ID_DTS,             MKTAG('d', 't', 's', 'c') }, /* DTS formats prior to DTS-HD */
 305     { AV_CODEC_ID_DTS,             MKTAG('d', 't', 's', 'h') }, /* DTS-HD audio formats */
 306     { AV_CODEC_ID_DTS,             MKTAG('d', 't', 's', 'l') }, /* DTS-HD Lossless formats */
 307     { AV_CODEC_ID_DTS,             MKTAG('D', 'T', 'S', ' ') }, /* non-standard */
 308     { AV_CODEC_ID_EAC3,            MKTAG('e', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F (only valid in ISOBMFF) */
 309     { AV_CODEC_ID_DVAUDIO,         MKTAG('v', 'd', 'v', 'a') },
 310     { AV_CODEC_ID_DVAUDIO,         MKTAG('d', 'v', 'c', 'a') },
 311     { AV_CODEC_ID_GSM,             MKTAG('a', 'g', 's', 'm') },
 312     { AV_CODEC_ID_ILBC,            MKTAG('i', 'l', 'b', 'c') },
 313     { AV_CODEC_ID_MACE3,           MKTAG('M', 'A', 'C', '3') },
 314     { AV_CODEC_ID_MACE6,           MKTAG('M', 'A', 'C', '6') },
 315     { AV_CODEC_ID_MP1,             MKTAG('.', 'm', 'p', '1') },
 316     { AV_CODEC_ID_MP2,             MKTAG('.', 'm', 'p', '2') },
 317     { AV_CODEC_ID_MP3,             MKTAG('.', 'm', 'p', '3') },
 318     { AV_CODEC_ID_MP3,             0x6D730055                },
 319     { AV_CODEC_ID_NELLYMOSER,      MKTAG('n', 'm', 'o', 's') }, /* Flash Media Server */
 320     { AV_CODEC_ID_NELLYMOSER,      MKTAG('N', 'E', 'L', 'L') }, /* Perian */
 321     { AV_CODEC_ID_PCM_ALAW,        MKTAG('a', 'l', 'a', 'w') },
 322     { AV_CODEC_ID_PCM_F32BE,       MKTAG('f', 'l', '3', '2') },
 323     { AV_CODEC_ID_PCM_F32LE,       MKTAG('f', 'l', '3', '2') },
 324     { AV_CODEC_ID_PCM_F64BE,       MKTAG('f', 'l', '6', '4') },
 325     { AV_CODEC_ID_PCM_F64LE,       MKTAG('f', 'l', '6', '4') },
 326     { AV_CODEC_ID_PCM_MULAW,       MKTAG('u', 'l', 'a', 'w') },
 327     { AV_CODEC_ID_PCM_S16BE,       MKTAG('t', 'w', 'o', 's') },
 328     { AV_CODEC_ID_PCM_S16LE,       MKTAG('s', 'o', 'w', 't') },
 329     { AV_CODEC_ID_PCM_S16BE,       MKTAG('l', 'p', 'c', 'm') },
 330     { AV_CODEC_ID_PCM_S16LE,       MKTAG('l', 'p', 'c', 'm') },
 331     { AV_CODEC_ID_PCM_S24BE,       MKTAG('i', 'n', '2', '4') },
 332     { AV_CODEC_ID_PCM_S24LE,       MKTAG('i', 'n', '2', '4') },
 333     { AV_CODEC_ID_PCM_S32BE,       MKTAG('i', 'n', '3', '2') },
 334     { AV_CODEC_ID_PCM_S32LE,       MKTAG('i', 'n', '3', '2') },
 335     { AV_CODEC_ID_PCM_S8,          MKTAG('s', 'o', 'w', 't') },
 336     { AV_CODEC_ID_PCM_U8,          MKTAG('r', 'a', 'w', ' ') },
 337     { AV_CODEC_ID_PCM_U8,          MKTAG('N', 'O', 'N', 'E') },
 338     { AV_CODEC_ID_QCELP,           MKTAG('Q', 'c', 'l', 'p') },
 339     { AV_CODEC_ID_QCELP,           MKTAG('Q', 'c', 'l', 'q') },
 340     { AV_CODEC_ID_QCELP,           MKTAG('s', 'q', 'c', 'p') }, /* ISO Media fourcc */
 341     { AV_CODEC_ID_QDM2,            MKTAG('Q', 'D', 'M', '2') },
 342     { AV_CODEC_ID_QDMC,            MKTAG('Q', 'D', 'M', 'C') },
 343     { AV_CODEC_ID_SPEEX,           MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */
 344     { AV_CODEC_ID_SPEEX,           MKTAG('S', 'P', 'X', 'N') }, /* ZygoAudio (quality 10 mode) */
 345     { AV_CODEC_ID_WMAV2,           MKTAG('W', 'M', 'A', '2') },
 346     { AV_CODEC_ID_EVRC,            MKTAG('s', 'e', 'v', 'c') }, /* 3GPP2 */
 347     { AV_CODEC_ID_SMV,             MKTAG('s', 's', 'm', 'v') }, /* 3GPP2 */
 348     { AV_CODEC_ID_NONE, 0 },
 349 };
 350
 351 const AVCodecTag ff_codec_movsubtitle_tags[] = {
 352     { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
 353     { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
 354     { AV_CODEC_ID_EIA_608,  MKTAG('c', '6', '0', '8') },
 355     { AV_CODEC_ID_NONE, 0 },
 356 };
 357
 358 /* map numeric codes from mdhd atom to ISO 639 */
 359 /* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
 360 /* http://developer.apple.com/documentation/mac/Text/Text-368.html */
 361 /* deprecated by putting the code as 3*5 bits ASCII */
 362 static const char mov_mdhd_language_map[][4] = {
 363     /* 0-9 */
 364     "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
 365     "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
 366     "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav",    "",
 367     "fo ",    "", "rus", "chi",    "", "iri", "alb", "ron", "ces", "slk",
 368     "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
 369     /*?*/
 370     "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon",    "", "pus",
 371     "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
 372     "pa ", "ori", "mal", "kan", "tam", "tel",    "", "bur", "khm", "lao",
 373     /*                   roman? arabic? */
 374     "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
 375     /*==rundi?*/
 376        "", "run",    "", "mlg", "epo",    "",    "",    "",    "",    "",
 377     /* 100 */
 378        "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
 379        "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
 380        "",    "",    "",    "",    "",    "",    "",    "", "wel", "baq",
 381     "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
 382 };
 383
 384 int ff_mov_iso639_to_lang(const char lang[4], int mp4)
 385 {
 386     int i, code = 0;
 387
 388     /* old way, only for QT? */
 389     for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
 390         if (!strcmp(lang, mov_mdhd_language_map[i]))
 391             return i;
 392     }
 393     /* XXX:can we do that in mov too? */
 394     if (!mp4)
 395         return -1;
 396     /* handle undefined as such */
 397     if (lang[0] == '\0')
 398         lang = "und";
 399     /* 5 bits ASCII */
 400     for (i = 0; i < 3; i++) {
 401         uint8_t c = lang[i];
 402         c -= 0x60;
 403         if (c > 0x1f)
 404             return -1;
 405         code <<= 5;
 406         code |= c;
 407     }
 408     return code;
 409 }
 410
 411 int ff_mov_lang_to_iso639(unsigned code, char to[4])
 412 {
 413     int i;
 414     memset(to, 0, 4);
 415     /* is it the mangled iso code? */
 416     /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
 417     if (code >= 0x400 && code != 0x7fff) {
 418         for (i = 2; i >= 0; i--) {
 419             to[i] = 0x60 + (code & 0x1f);
 420             code >>= 5;
 421         }
 422         return 1;
 423     }
 424     /* old fashion apple lang code */
 425     if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
 426         return 0;
 427     if (!mov_mdhd_language_map[code][0])
 428         return 0;
 429     memcpy(to, mov_mdhd_language_map[code], 4);
 430     return 1;
 431 }
 432
 433 int ff_mp4_read_descr_len(AVIOContext *pb)
 434 {
 435     int len = 0;
 436     int count = 4;
 437     while (count--) {
 438         int c = avio_r8(pb);
 439         len = (len << 7) | (c & 0x7f);
 440         if (!(c & 0x80))
 441             break;
 442     }
 443     return len;
 444 }
 445
 446 int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
 447 {
 448     int len;
 449     *tag = avio_r8(pb);
 450     len = ff_mp4_read_descr_len(pb);
 451     av_log(fc, AV_LOG_TRACE, "MPEG-4 description: tag=0x%02x len=%d\n", *tag, len);
 452     return len;
 453 }
 454
 455 void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
 456 {
 457      int flags;
 458      if (es_id) *es_id = avio_rb16(pb);
 459      else                avio_rb16(pb);
 460      flags = avio_r8(pb);
 461      if (flags & 0x80) //streamDependenceFlag
 462          avio_rb16(pb);
 463      if (flags & 0x40) { //URL_Flag
 464          int len = avio_r8(pb);
 465          avio_skip(pb, len);
 466      }
 467      if (flags & 0x20) //OCRstreamFlag
 468          avio_rb16(pb);
 469 }
 470
 471 static const AVCodecTag mp4_audio_types[] = {
 472     { AV_CODEC_ID_MP3ON4, AOT_PS   }, /* old mp3on4 draft */
 473     { AV_CODEC_ID_MP3ON4, AOT_L1   }, /* layer 1 */
 474     { AV_CODEC_ID_MP3ON4, AOT_L2   }, /* layer 2 */
 475     { AV_CODEC_ID_MP3ON4, AOT_L3   }, /* layer 3 */
 476     { AV_CODEC_ID_MP4ALS, AOT_ALS  }, /* MPEG-4 ALS */
 477     { AV_CODEC_ID_NONE,   AOT_NULL },
 478 };
 479
 480 int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
 481 {
 482     enum AVCodecID codec_id;
 483     unsigned v;
 484     int len, tag;
 485     int ret;
 486     int object_type_id = avio_r8(pb);
 487     avio_r8(pb); /* stream type */
 488     avio_rb24(pb); /* buffer size db */
 489
 490     v = avio_rb32(pb);
 491
 492     // TODO: fix this with codecpar
 493 #if FF_API_LAVF_AVCTX
 494 FF_DISABLE_DEPRECATION_WARNINGS
 495     if (v < INT32_MAX)
 496         st->codec->rc_max_rate = v;
 497 FF_ENABLE_DEPRECATION_WARNINGS
 498 #endif
 499
 500     st->codecpar->bit_rate = avio_rb32(pb); /* avg bitrate */
 501
 502     codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
 503     if (codec_id)
 504         st->codecpar->codec_id = codec_id;
 505     av_log(fc, AV_LOG_TRACE, "esds object type id 0x%02x\n", object_type_id);
 506     len = ff_mp4_read_descr(fc, pb, &tag);
 507     if (tag == MP4DecSpecificDescrTag) {
 508         av_log(fc, AV_LOG_TRACE, "Specific MPEG-4 header len=%d\n", len);
 509         if (!len || (uint64_t)len > (1<<30))
 510             return -1;
 511         av_free(st->codecpar->extradata);
 512         if ((ret = ff_get_extradata(fc, st->codecpar, pb, len)) < 0)
 513             return ret;
 514         if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
 515             MPEG4AudioConfig cfg = {0};
 516             avpriv_mpeg4audio_get_config(&cfg, st->codecpar->extradata,
 517                                          st->codecpar->extradata_size * 8, 1);
 518             st->codecpar->channels = cfg.channels;
 519             if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
 520                 st->codecpar->sample_rate = avpriv_mpa_freq_tab[cfg.sampling_index];
 521             else if (cfg.ext_sample_rate)
 522                 st->codecpar->sample_rate = cfg.ext_sample_rate;
 523             else
 524                 st->codecpar->sample_rate = cfg.sample_rate;
 525             av_log(fc, AV_LOG_TRACE, "mp4a config channels %d obj %d ext obj %d "
 526                     "sample rate %d ext sample rate %d\n", st->codecpar->channels,
 527                     cfg.object_type, cfg.ext_object_type,
 528                     cfg.sample_rate, cfg.ext_sample_rate);
 529             if (!(st->codecpar->codec_id = ff_codec_get_id(mp4_audio_types,
 530                                                         cfg.object_type)))
 531                 st->codecpar->codec_id = AV_CODEC_ID_AAC;
 532         }
 533     }
 534     return 0;
 535 }
 536
 537 typedef struct MovChannelLayout {
 538     int64_t  channel_layout;
 539     uint32_t layout_tag;
 540 } MovChannelLayout;
 541
 542 static const MovChannelLayout mov_channel_layout[] = {
 543     { AV_CH_LAYOUT_MONO,                         (100<<16) | 1}, // kCAFChannelLayoutTag_Mono
 544     { AV_CH_LAYOUT_STEREO,                       (101<<16) | 2}, // kCAFChannelLayoutTag_Stereo
 545     { AV_CH_LAYOUT_STEREO,                       (102<<16) | 2}, // kCAFChannelLayoutTag_StereoHeadphones
 546     { AV_CH_LAYOUT_2_1,                          (131<<16) | 3}, // kCAFChannelLayoutTag_ITU_2_1
 547     { AV_CH_LAYOUT_QUAD,                         (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
 548     { AV_CH_LAYOUT_2_2,                          (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
 549     { AV_CH_LAYOUT_QUAD,                         (108<<16) | 4}, // kCAFChannelLayoutTag_Quadraphonic
 550     { AV_CH_LAYOUT_SURROUND,                     (113<<16) | 3}, // kCAFChannelLayoutTag_MPEG_3_0_A
 551     { AV_CH_LAYOUT_4POINT0,                      (115<<16) | 4}, // kCAFChannelLayoutTag_MPEG_4_0_A
 552     { AV_CH_LAYOUT_5POINT0_BACK,                 (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
 553     { AV_CH_LAYOUT_5POINT0,                      (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
 554     { AV_CH_LAYOUT_5POINT1_BACK,                 (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
 555     { AV_CH_LAYOUT_5POINT1,                      (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
 556     { AV_CH_LAYOUT_7POINT1,                      (128<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_C
 557     { AV_CH_LAYOUT_7POINT1_WIDE,                 (126<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_A
 558     { AV_CH_LAYOUT_5POINT1_BACK|AV_CH_LAYOUT_STEREO_DOWNMIX, (130<<16) | 8}, // kCAFChannelLayoutTag_SMPTE_DTV
 559     { AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY,   (133<<16) | 3}, // kCAFChannelLayoutTag_DVD_4
 560     { AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY,      (134<<16) | 4}, // kCAFChannelLayoutTag_DVD_5
 561     { AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY,     (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
 562     { AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY,      (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
 563     { AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY, (136<<16) | 4}, // kCAFChannelLayoutTag_DVD_10
 564     { AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY,  (137<<16) | 5}, // kCAFChannelLayoutTag_DVD_11
 565     { 0, 0},
 566 };
 567 #if 0
 568 int ff_mov_read_chan(AVFormatContext *s, AVStream *st, int64_t size)
 569 {
 570     AVCodecContext *codec= st->codec;
 571     uint32_t layout_tag;
 572     AVIOContext *pb = s->pb;
 573     const MovChannelLayout *layouts = mov_channel_layout;
 574
 575     if (size < 12)
 576         return AVERROR_INVALIDDATA;
 577
 578     layout_tag = avio_rb32(pb);
 579     size -= 4;
 580     if (layout_tag == 0) { // kCAFChannelLayoutTag_UseChannelDescriptions
 581         // Channel descriptions not implemented
 582         av_log_ask_for_sample(s, "Unimplemented container channel layout.\n");
 583         avio_skip(pb, size);
 584         return 0;
 585     }
 586     if (layout_tag == 0x10000) { // kCAFChannelLayoutTag_UseChannelBitmap
 587         codec->channel_layout = avio_rb32(pb);
 588         size -= 4;
 589         avio_skip(pb, size);
 590         return 0;
 591     }
 592     while (layouts->channel_layout) {
 593         if (layout_tag == layouts->layout_tag) {
 594             codec->channel_layout = layouts->channel_layout;
 595             break;
 596         }
 597         layouts++;
 598     }
 599     if (!codec->channel_layout)
 600         av_log(s, AV_LOG_WARNING, "Unknown container channel layout.\n");
 601     avio_skip(pb, size);
 602
 603     return 0;
 604 }
 605 #endif
 606
 607 void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
 608 {
 609     const MovChannelLayout *layouts;
 610     uint32_t layout_tag = 0;
 611
 612     for (layouts = mov_channel_layout; layouts->channel_layout; layouts++)
 613         if (channel_layout == layouts->channel_layout) {
 614             layout_tag = layouts->layout_tag;
 615             break;
 616         }
 617
 618     if (layout_tag) {
 619         avio_wb32(pb, layout_tag); // mChannelLayoutTag
 620         avio_wb32(pb, 0);          // mChannelBitmap
 621     } else {
 622         avio_wb32(pb, 0x10000);    // kCAFChannelLayoutTag_UseChannelBitmap
 623         avio_wb32(pb, channel_layout);
 624     }
 625     avio_wb32(pb, 0);              // mNumberChannelDescriptions
 626 }
 627
 628 const struct AVCodecTag *avformat_get_mov_video_tags(void)
 629 {
 630     return ff_codec_movvideo_tags;
 631 }
 632
 633 const struct AVCodecTag *avformat_get_mov_audio_tags(void)
 634 {
 635     return ff_codec_movaudio_tags;
 636 }