mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
aa3155e4c2
Add muxer for vvcc byte stream format.
Add AV_CODEC_ID_VVC to ff_mp4_obj_type.
Add AV_CODEC_ID_VVC to ISO Media codec (VvcConfigurationBox vvi1,
vvc1 defined in ISO/IEC 14496-15:2021).
Add VvcConfigurationBox vvcC which extends FullBox type in
ISO/IEC 14496-15:2021.
Tested with:
ffmpeg -i NovosobornayaSquare_1920x1080.mp4 -c:v libvvenc test.mp4 && ffmpeg -i test.mp4 -f null -
ffmpeg -i NovosobornayaSquare_1920x1080.mp4 -c:v copy test.mp4 && ffmpeg -i test.mp4 -f md5 -
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Thomas Siedel <thomas.ff@spin-digital.com>
Co-Authored-By: Nuo Mi <nuomi2021@gmail.com>
452 lines
16 KiB
C
452 lines
16 KiB
C
/*
|
|
* ISO Media common code
|
|
* Copyright (c) 2001 Fabrice Bellard
|
|
* Copyright (c) 2002 Francois Revol <revol@free.fr>
|
|
* Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "avformat.h"
|
|
#include "demux.h"
|
|
#include "internal.h"
|
|
#include "isom.h"
|
|
#include "libavcodec/mpeg4audio.h"
|
|
#include "libavcodec/mpegaudiodata.h"
|
|
#include "libavutil/channel_layout.h"
|
|
|
|
/* http://www.mp4ra.org */
|
|
/* ordered by muxing preference */
|
|
const AVCodecTag ff_mp4_obj_type[] = {
|
|
{ AV_CODEC_ID_MOV_TEXT , 0x08 },
|
|
{ AV_CODEC_ID_MPEG4 , 0x20 },
|
|
{ AV_CODEC_ID_H264 , 0x21 },
|
|
{ AV_CODEC_ID_HEVC , 0x23 },
|
|
{ AV_CODEC_ID_VVC , 0x33 },
|
|
{ AV_CODEC_ID_AAC , 0x40 },
|
|
{ AV_CODEC_ID_MP4ALS , 0x40 }, /* 14496-3 ALS */
|
|
{ AV_CODEC_ID_MPEG2VIDEO , 0x61 }, /* MPEG-2 Main */
|
|
{ AV_CODEC_ID_MPEG2VIDEO , 0x60 }, /* MPEG-2 Simple */
|
|
{ AV_CODEC_ID_MPEG2VIDEO , 0x62 }, /* MPEG-2 SNR */
|
|
{ AV_CODEC_ID_MPEG2VIDEO , 0x63 }, /* MPEG-2 Spatial */
|
|
{ AV_CODEC_ID_MPEG2VIDEO , 0x64 }, /* MPEG-2 High */
|
|
{ AV_CODEC_ID_MPEG2VIDEO , 0x65 }, /* MPEG-2 422 */
|
|
{ AV_CODEC_ID_AAC , 0x66 }, /* MPEG-2 AAC Main */
|
|
{ AV_CODEC_ID_AAC , 0x67 }, /* MPEG-2 AAC Low */
|
|
{ AV_CODEC_ID_AAC , 0x68 }, /* MPEG-2 AAC SSR */
|
|
{ AV_CODEC_ID_MP3 , 0x69 }, /* 13818-3 */
|
|
{ AV_CODEC_ID_MP2 , 0x69 }, /* 11172-3 */
|
|
{ AV_CODEC_ID_MPEG1VIDEO , 0x6A }, /* 11172-2 */
|
|
{ AV_CODEC_ID_MP3 , 0x6B }, /* 11172-3 */
|
|
{ AV_CODEC_ID_MJPEG , 0x6C }, /* 10918-1 */
|
|
{ AV_CODEC_ID_PNG , 0x6D },
|
|
{ AV_CODEC_ID_JPEG2000 , 0x6E }, /* 15444-1 */
|
|
{ AV_CODEC_ID_VC1 , 0xA3 },
|
|
{ AV_CODEC_ID_DIRAC , 0xA4 },
|
|
{ AV_CODEC_ID_AC3 , 0xA5 },
|
|
{ AV_CODEC_ID_EAC3 , 0xA6 },
|
|
{ AV_CODEC_ID_DTS , 0xA9 }, /* mp4ra.org */
|
|
{ AV_CODEC_ID_OPUS , 0xAD }, /* mp4ra.org */
|
|
{ AV_CODEC_ID_VP9 , 0xB1 }, /* mp4ra.org */
|
|
{ AV_CODEC_ID_TSCC2 , 0xD0 }, /* nonstandard, camtasia uses it */
|
|
{ AV_CODEC_ID_EVRC , 0xD1 }, /* nonstandard, pvAuthor uses it */
|
|
{ AV_CODEC_ID_VORBIS , 0xDD }, /* nonstandard, gpac uses it */
|
|
{ AV_CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* nonstandard, see unsupported-embedded-subs-2.mp4 */
|
|
{ AV_CODEC_ID_QCELP , 0xE1 },
|
|
{ AV_CODEC_ID_MPEG4SYSTEMS, 0x01 },
|
|
{ AV_CODEC_ID_MPEG4SYSTEMS, 0x02 },
|
|
{ AV_CODEC_ID_NONE , 0 },
|
|
};
|
|
|
|
const AVCodecTag ff_codec_movsubtitle_tags[] = {
|
|
{ AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
|
|
{ AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
|
|
{ AV_CODEC_ID_EIA_608, MKTAG('c', '6', '0', '8') },
|
|
{ AV_CODEC_ID_NONE, 0 },
|
|
};
|
|
|
|
const AVCodecTag ff_codec_movdata_tags[] = {
|
|
{ AV_CODEC_ID_BIN_DATA, MKTAG('g', 'p', 'm', 'd') },
|
|
{ AV_CODEC_ID_NONE, 0 },
|
|
};
|
|
|
|
/* map numeric codes from mdhd atom to ISO 639 */
|
|
/* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
|
|
/* http://developer.apple.com/documentation/mac/Text/Text-368.html */
|
|
/* deprecated by putting the code as 3*5 bits ASCII */
|
|
static const char mov_mdhd_language_map[][4] = {
|
|
"eng", /* 0 English */
|
|
"fra", /* 1 French */
|
|
"ger", /* 2 German */
|
|
"ita", /* 3 Italian */
|
|
"dut", /* 4 Dutch */
|
|
"sve", /* 5 Swedish */
|
|
"spa", /* 6 Spanish */
|
|
"dan", /* 7 Danish */
|
|
"por", /* 8 Portuguese */
|
|
"nor", /* 9 Norwegian */
|
|
"heb", /* 10 Hebrew */
|
|
"jpn", /* 11 Japanese */
|
|
"ara", /* 12 Arabic */
|
|
"fin", /* 13 Finnish */
|
|
"gre", /* 14 Greek */
|
|
"ice", /* 15 Icelandic */
|
|
"mlt", /* 16 Maltese */
|
|
"tur", /* 17 Turkish */
|
|
"hr ", /* 18 Croatian */
|
|
"chi", /* 19 Traditional Chinese */
|
|
"urd", /* 20 Urdu */
|
|
"hin", /* 21 Hindi */
|
|
"tha", /* 22 Thai */
|
|
"kor", /* 23 Korean */
|
|
"lit", /* 24 Lithuanian */
|
|
"pol", /* 25 Polish */
|
|
"hun", /* 26 Hungarian */
|
|
"est", /* 27 Estonian */
|
|
"lav", /* 28 Latvian */
|
|
"smi", /* 29 Sami */
|
|
"fo ", /* 30 Faroese */
|
|
"per", /* 31 Farsi */
|
|
"rus", /* 32 Russian */
|
|
"chi", /* 33 Simplified Chinese */
|
|
"", /* 34 Flemish */
|
|
"iri", /* 35 Irish */
|
|
"alb", /* 36 Albanian */
|
|
"ron", /* 37 Romanian */
|
|
"ces", /* 38 Czech */
|
|
"slk", /* 39 Slovak */
|
|
"slv", /* 40 Slovenian */
|
|
"yid", /* 41 Yiddish */
|
|
"sr ", /* 42 Serbian */
|
|
"mac", /* 43 Macedonian */
|
|
"bul", /* 44 Bulgarian */
|
|
"ukr", /* 45 Ukrainian */
|
|
"bel", /* 46 Belarusian */
|
|
"uzb", /* 47 Uzbek */
|
|
"kaz", /* 48 Kazakh */
|
|
"aze", /* 49 Azerbaijani */
|
|
"aze", /* 50 AzerbaijanAr */
|
|
"arm", /* 51 Armenian */
|
|
"geo", /* 52 Georgian */
|
|
"mol", /* 53 Moldavian */
|
|
"kir", /* 54 Kirghiz */
|
|
"tgk", /* 55 Tajiki */
|
|
"tuk", /* 56 Turkmen */
|
|
"mon", /* 57 Mongolian */
|
|
"", /* 58 MongolianCyr */
|
|
"pus", /* 59 Pashto */
|
|
"kur", /* 60 Kurdish */
|
|
"kas", /* 61 Kashmiri */
|
|
"snd", /* 62 Sindhi */
|
|
"tib", /* 63 Tibetan */
|
|
"nep", /* 64 Nepali */
|
|
"san", /* 65 Sanskrit */
|
|
"mar", /* 66 Marathi */
|
|
"ben", /* 67 Bengali */
|
|
"asm", /* 68 Assamese */
|
|
"guj", /* 69 Gujarati */
|
|
"pa ", /* 70 Punjabi */
|
|
"ori", /* 71 Oriya */
|
|
"mal", /* 72 Malayalam */
|
|
"kan", /* 73 Kannada */
|
|
"tam", /* 74 Tamil */
|
|
"tel", /* 75 Telugu */
|
|
"sin", /* 76 Sinhala */
|
|
"bur", /* 77 Burmese */
|
|
"khm", /* 78 Khmer */
|
|
"lao", /* 79 Lao */
|
|
"vie", /* 80 Vietnamese */
|
|
"ind", /* 81 Indonesian */
|
|
"tgl", /* 82 Tagalog */
|
|
"may", /* 83 MalayRoman */
|
|
"may", /* 84 MalayArabic */
|
|
"amh", /* 85 Amharic */
|
|
"tir", /* 86 Galla */
|
|
"orm", /* 87 Oromo */
|
|
"som", /* 88 Somali */
|
|
"swa", /* 89 Swahili */
|
|
"kin", /* 90 Kinyarwanda */
|
|
"run", /* 91 Rundi */
|
|
"nya", /* 92 Nyanja */
|
|
"mlg", /* 93 Malagasy */
|
|
"epo", /* 94 Esperanto */
|
|
"", /* 95 */
|
|
"", /* 96 */
|
|
"", /* 97 */
|
|
"", /* 98 */
|
|
"", /* 99 */
|
|
"", /* 100 */
|
|
"", /* 101 */
|
|
"", /* 102 */
|
|
"", /* 103 */
|
|
"", /* 104 */
|
|
"", /* 105 */
|
|
"", /* 106 */
|
|
"", /* 107 */
|
|
"", /* 108 */
|
|
"", /* 109 */
|
|
"", /* 110 */
|
|
"", /* 111 */
|
|
"", /* 112 */
|
|
"", /* 113 */
|
|
"", /* 114 */
|
|
"", /* 115 */
|
|
"", /* 116 */
|
|
"", /* 117 */
|
|
"", /* 118 */
|
|
"", /* 119 */
|
|
"", /* 120 */
|
|
"", /* 121 */
|
|
"", /* 122 */
|
|
"", /* 123 */
|
|
"", /* 124 */
|
|
"", /* 125 */
|
|
"", /* 126 */
|
|
"", /* 127 */
|
|
"wel", /* 128 Welsh */
|
|
"baq", /* 129 Basque */
|
|
"cat", /* 130 Catalan */
|
|
"lat", /* 131 Latin */
|
|
"que", /* 132 Quechua */
|
|
"grn", /* 133 Guarani */
|
|
"aym", /* 134 Aymara */
|
|
"tat", /* 135 Tatar */
|
|
"uig", /* 136 Uighur */
|
|
"dzo", /* 137 Dzongkha */
|
|
"jav", /* 138 JavaneseRom */
|
|
};
|
|
|
|
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
|
|
{
|
|
int i, code = 0;
|
|
|
|
/* old way, only for QT? */
|
|
for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
|
|
if (!strcmp(lang, mov_mdhd_language_map[i]))
|
|
return i;
|
|
}
|
|
/* XXX:can we do that in mov too? */
|
|
if (!mp4)
|
|
return -1;
|
|
/* handle undefined as such */
|
|
if (lang[0] == '\0')
|
|
lang = "und";
|
|
/* 5 bits ASCII */
|
|
for (i = 0; i < 3; i++) {
|
|
uint8_t c = lang[i];
|
|
c -= 0x60;
|
|
if (c > 0x1f)
|
|
return -1;
|
|
code <<= 5;
|
|
code |= c;
|
|
}
|
|
return code;
|
|
}
|
|
|
|
int ff_mov_lang_to_iso639(unsigned code, char to[4])
|
|
{
|
|
int i;
|
|
memset(to, 0, 4);
|
|
/* is it the mangled iso code? */
|
|
/* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
|
|
if (code >= 0x400 && code != 0x7fff) {
|
|
for (i = 2; i >= 0; i--) {
|
|
to[i] = 0x60 + (code & 0x1f);
|
|
code >>= 5;
|
|
}
|
|
return 1;
|
|
}
|
|
/* old fashion apple lang code */
|
|
if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
|
|
return 0;
|
|
if (!mov_mdhd_language_map[code][0])
|
|
return 0;
|
|
memcpy(to, mov_mdhd_language_map[code], 4);
|
|
return 1;
|
|
}
|
|
|
|
int ff_mp4_read_descr_len(AVIOContext *pb)
|
|
{
|
|
int len = 0;
|
|
int count = 4;
|
|
while (count--) {
|
|
int c = avio_r8(pb);
|
|
len = (len << 7) | (c & 0x7f);
|
|
if (!(c & 0x80))
|
|
break;
|
|
}
|
|
return len;
|
|
}
|
|
|
|
int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
|
|
{
|
|
int len;
|
|
*tag = avio_r8(pb);
|
|
len = ff_mp4_read_descr_len(pb);
|
|
av_log(fc, AV_LOG_TRACE, "MPEG-4 description: tag=0x%02x len=%d\n", *tag, len);
|
|
return len;
|
|
}
|
|
|
|
void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
|
|
{
|
|
int flags;
|
|
if (es_id) *es_id = avio_rb16(pb);
|
|
else avio_rb16(pb);
|
|
flags = avio_r8(pb);
|
|
if (flags & 0x80) //streamDependenceFlag
|
|
avio_rb16(pb);
|
|
if (flags & 0x40) { //URL_Flag
|
|
int len = avio_r8(pb);
|
|
avio_skip(pb, len);
|
|
}
|
|
if (flags & 0x20) //OCRstreamFlag
|
|
avio_rb16(pb);
|
|
}
|
|
|
|
static const AVCodecTag mp4_audio_types[] = {
|
|
{ AV_CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
|
|
{ AV_CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
|
|
{ AV_CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
|
|
{ AV_CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
|
|
{ AV_CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
|
|
{ AV_CODEC_ID_NONE, AOT_NULL },
|
|
};
|
|
|
|
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
|
|
{
|
|
enum AVCodecID codec_id;
|
|
int len, tag;
|
|
int ret;
|
|
int object_type_id = avio_r8(pb);
|
|
avio_r8(pb); /* stream type */
|
|
avio_rb24(pb); /* buffer size db */
|
|
avio_rb32(pb); /* rc_max_rate */
|
|
|
|
st->codecpar->bit_rate = avio_rb32(pb); /* avg bitrate */
|
|
|
|
codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
|
|
if (codec_id)
|
|
st->codecpar->codec_id = codec_id;
|
|
av_log(fc, AV_LOG_TRACE, "esds object type id 0x%02x\n", object_type_id);
|
|
len = ff_mp4_read_descr(fc, pb, &tag);
|
|
if (tag == MP4DecSpecificDescrTag) {
|
|
av_log(fc, AV_LOG_TRACE, "Specific MPEG-4 header len=%d\n", len);
|
|
/* As per 14496-3:2009 9.D.2.2, No decSpecificInfo is defined
|
|
for MPEG-1 Audio or MPEG-2 Audio; MPEG-2 AAC excluded. */
|
|
if (object_type_id == 0x69 || object_type_id == 0x6b)
|
|
return 0;
|
|
if (!len || (uint64_t)len > (1<<30))
|
|
return AVERROR_INVALIDDATA;
|
|
if ((ret = ff_get_extradata(fc, st->codecpar, pb, len)) < 0)
|
|
return ret;
|
|
if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
|
|
MPEG4AudioConfig cfg = {0};
|
|
ret = avpriv_mpeg4audio_get_config2(&cfg, st->codecpar->extradata,
|
|
st->codecpar->extradata_size, 1, fc);
|
|
if (ret < 0)
|
|
return ret;
|
|
st->codecpar->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
|
|
st->codecpar->ch_layout.nb_channels = cfg.channels;
|
|
if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
|
|
st->codecpar->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
|
|
else if (cfg.ext_sample_rate)
|
|
st->codecpar->sample_rate = cfg.ext_sample_rate;
|
|
else
|
|
st->codecpar->sample_rate = cfg.sample_rate;
|
|
av_log(fc, AV_LOG_TRACE, "mp4a config channels %d obj %d ext obj %d "
|
|
"sample rate %d ext sample rate %d\n", cfg.channels,
|
|
cfg.object_type, cfg.ext_object_type,
|
|
cfg.sample_rate, cfg.ext_sample_rate);
|
|
if (!(st->codecpar->codec_id = ff_codec_get_id(mp4_audio_types,
|
|
cfg.object_type)))
|
|
st->codecpar->codec_id = AV_CODEC_ID_AAC;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
typedef struct MovChannelLayout {
|
|
int64_t channel_layout;
|
|
uint32_t layout_tag;
|
|
} MovChannelLayout;
|
|
|
|
static const MovChannelLayout mov_channel_layout[] = {
|
|
{ AV_CH_LAYOUT_MONO, (100<<16) | 1}, // kCAFChannelLayoutTag_Mono
|
|
{ AV_CH_LAYOUT_STEREO, (101<<16) | 2}, // kCAFChannelLayoutTag_Stereo
|
|
{ AV_CH_LAYOUT_STEREO, (102<<16) | 2}, // kCAFChannelLayoutTag_StereoHeadphones
|
|
{ AV_CH_LAYOUT_2_1, (131<<16) | 3}, // kCAFChannelLayoutTag_ITU_2_1
|
|
{ AV_CH_LAYOUT_QUAD, (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
|
|
{ AV_CH_LAYOUT_2_2, (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
|
|
{ AV_CH_LAYOUT_QUAD, (108<<16) | 4}, // kCAFChannelLayoutTag_Quadraphonic
|
|
{ AV_CH_LAYOUT_SURROUND, (113<<16) | 3}, // kCAFChannelLayoutTag_MPEG_3_0_A
|
|
{ AV_CH_LAYOUT_4POINT0, (115<<16) | 4}, // kCAFChannelLayoutTag_MPEG_4_0_A
|
|
{ AV_CH_LAYOUT_5POINT0_BACK, (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
|
|
{ AV_CH_LAYOUT_5POINT0, (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
|
|
{ AV_CH_LAYOUT_5POINT1_BACK, (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
|
|
{ AV_CH_LAYOUT_5POINT1, (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
|
|
{ AV_CH_LAYOUT_7POINT1, (128<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_C
|
|
{ AV_CH_LAYOUT_7POINT1_WIDE, (126<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_A
|
|
{ AV_CH_LAYOUT_5POINT1_BACK|AV_CH_LAYOUT_STEREO_DOWNMIX, (130<<16) | 8}, // kCAFChannelLayoutTag_SMPTE_DTV
|
|
{ AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY, (133<<16) | 3}, // kCAFChannelLayoutTag_DVD_4
|
|
{ AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY, (134<<16) | 4}, // kCAFChannelLayoutTag_DVD_5
|
|
{ AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY, (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
|
|
{ AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY, (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
|
|
{ AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY, (136<<16) | 4}, // kCAFChannelLayoutTag_DVD_10
|
|
{ AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY, (137<<16) | 5}, // kCAFChannelLayoutTag_DVD_11
|
|
{ 0, 0},
|
|
};
|
|
|
|
void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
|
|
{
|
|
const MovChannelLayout *layouts;
|
|
uint32_t layout_tag = 0;
|
|
|
|
for (layouts = mov_channel_layout; layouts->channel_layout; layouts++)
|
|
if (channel_layout == layouts->channel_layout) {
|
|
layout_tag = layouts->layout_tag;
|
|
break;
|
|
}
|
|
|
|
if (layout_tag) {
|
|
avio_wb32(pb, layout_tag); // mChannelLayoutTag
|
|
avio_wb32(pb, 0); // mChannelBitmap
|
|
} else {
|
|
avio_wb32(pb, 0x10000); // kCAFChannelLayoutTag_UseChannelBitmap
|
|
avio_wb32(pb, channel_layout);
|
|
}
|
|
avio_wb32(pb, 0); // mNumberChannelDescriptions
|
|
}
|
|
|
|
static const struct MP4TrackKindValueMapping dash_role_map[] = {
|
|
{ AV_DISPOSITION_HEARING_IMPAIRED|AV_DISPOSITION_CAPTIONS,
|
|
"caption" },
|
|
{ AV_DISPOSITION_COMMENT,
|
|
"commentary" },
|
|
{ AV_DISPOSITION_VISUAL_IMPAIRED|AV_DISPOSITION_DESCRIPTIONS,
|
|
"description" },
|
|
{ AV_DISPOSITION_DUB,
|
|
"dub" },
|
|
{ AV_DISPOSITION_FORCED,
|
|
"forced-subtitle" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
const struct MP4TrackKindMapping ff_mov_track_kind_table[] = {
|
|
{ "urn:mpeg:dash:role:2011", dash_role_map },
|
|
{ 0, NULL }
|
|
};
|