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FFmpeg/libavformat/matroska.c
Matthew Heaney 818ebe930f avformat/matroskadec: add WebVTT support
WebM files now support inband text tracks, as described in the
following specification:

http://wiki.webmproject.org/webm-metadata/temporal-metadata/webvtt-in-webm

The Matroska demuxer now detects the presence of WebVTT tracks,
synthesizing WebVTT packets (having codec id AV_CODEC_ID_WEBVTT) and
pushing them downstream in the normal way.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-19 22:34:57 +02:00

148 lines
5.5 KiB
C

/*
* Matroska common data
* Copyright (c) 2003-2004 The ffmpeg Project
*
* 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 "matroska.h"
/* If you add a tag here that is not in ff_codec_bmp_tags[]
or ff_codec_wav_tags[], add it also to additional_audio_tags[]
or additional_video_tags[] in matroskaenc.c */
const CodecTags ff_mkv_codec_tags[]={
{"A_AAC" , AV_CODEC_ID_AAC},
{"A_AC3" , AV_CODEC_ID_AC3},
{"A_ALAC" , AV_CODEC_ID_ALAC},
{"A_DTS" , AV_CODEC_ID_DTS},
{"A_EAC3" , AV_CODEC_ID_EAC3},
{"A_FLAC" , AV_CODEC_ID_FLAC},
{"A_MLP" , AV_CODEC_ID_MLP},
{"A_MPEG/L2" , AV_CODEC_ID_MP2},
{"A_MPEG/L1" , AV_CODEC_ID_MP2},
{"A_MPEG/L3" , AV_CODEC_ID_MP3},
{"A_OPUS/EXPERIMENTAL",AV_CODEC_ID_OPUS},
{"A_OPUS", AV_CODEC_ID_OPUS},
{"A_PCM/FLOAT/IEEE" , AV_CODEC_ID_PCM_F32LE},
{"A_PCM/FLOAT/IEEE" , AV_CODEC_ID_PCM_F64LE},
{"A_PCM/INT/BIG" , AV_CODEC_ID_PCM_S16BE},
{"A_PCM/INT/BIG" , AV_CODEC_ID_PCM_S24BE},
{"A_PCM/INT/BIG" , AV_CODEC_ID_PCM_S32BE},
{"A_PCM/INT/LIT" , AV_CODEC_ID_PCM_S16LE},
{"A_PCM/INT/LIT" , AV_CODEC_ID_PCM_S24LE},
{"A_PCM/INT/LIT" , AV_CODEC_ID_PCM_S32LE},
{"A_PCM/INT/LIT" , AV_CODEC_ID_PCM_U8},
{"A_QUICKTIME/QDM2" , AV_CODEC_ID_QDM2},
{"A_REAL/14_4" , AV_CODEC_ID_RA_144},
{"A_REAL/28_8" , AV_CODEC_ID_RA_288},
{"A_REAL/ATRC" , AV_CODEC_ID_ATRAC3},
{"A_REAL/COOK" , AV_CODEC_ID_COOK},
{"A_REAL/SIPR" , AV_CODEC_ID_SIPR},
{"A_TRUEHD" , AV_CODEC_ID_TRUEHD},
{"A_TTA1" , AV_CODEC_ID_TTA},
{"A_VORBIS" , AV_CODEC_ID_VORBIS},
{"A_WAVPACK4" , AV_CODEC_ID_WAVPACK},
{"D_WEBVTT/SUBTITLES" , AV_CODEC_ID_WEBVTT},
{"D_WEBVTT/CAPTIONS" , AV_CODEC_ID_WEBVTT},
{"D_WEBVTT/DESCRIPTIONS", AV_CODEC_ID_WEBVTT},
{"D_WEBVTT/METADATA" , AV_CODEC_ID_WEBVTT},
{"S_TEXT/UTF8" , AV_CODEC_ID_SUBRIP},
{"S_TEXT/UTF8" , AV_CODEC_ID_TEXT},
{"S_TEXT/UTF8" , AV_CODEC_ID_SRT},
{"S_TEXT/ASCII" , AV_CODEC_ID_TEXT},
#if FF_API_ASS_SSA
{"S_TEXT/ASS" , AV_CODEC_ID_SSA},
{"S_TEXT/SSA" , AV_CODEC_ID_SSA},
{"S_ASS" , AV_CODEC_ID_SSA},
{"S_SSA" , AV_CODEC_ID_SSA},
#endif
{"S_TEXT/ASS" , AV_CODEC_ID_ASS},
{"S_TEXT/SSA" , AV_CODEC_ID_ASS},
{"S_ASS" , AV_CODEC_ID_ASS},
{"S_SSA" , AV_CODEC_ID_ASS},
{"S_VOBSUB" , AV_CODEC_ID_DVD_SUBTITLE},
{"S_DVBSUB" , AV_CODEC_ID_DVB_SUBTITLE},
{"S_HDMV/PGS" , AV_CODEC_ID_HDMV_PGS_SUBTITLE},
{"V_DIRAC" , AV_CODEC_ID_DIRAC},
{"V_MJPEG" , AV_CODEC_ID_MJPEG},
{"V_MPEG1" , AV_CODEC_ID_MPEG1VIDEO},
{"V_MPEG2" , AV_CODEC_ID_MPEG2VIDEO},
{"V_MPEG4/ISO/ASP" , AV_CODEC_ID_MPEG4},
{"V_MPEG4/ISO/AP" , AV_CODEC_ID_MPEG4},
{"V_MPEG4/ISO/SP" , AV_CODEC_ID_MPEG4},
{"V_MPEG4/ISO/AVC" , AV_CODEC_ID_H264},
{"V_MPEG4/MS/V3" , AV_CODEC_ID_MSMPEG4V3},
{"V_PRORES" , AV_CODEC_ID_PRORES},
{"V_REAL/RV10" , AV_CODEC_ID_RV10},
{"V_REAL/RV20" , AV_CODEC_ID_RV20},
{"V_REAL/RV30" , AV_CODEC_ID_RV30},
{"V_REAL/RV40" , AV_CODEC_ID_RV40},
{"V_SNOW" , AV_CODEC_ID_SNOW},
{"V_THEORA" , AV_CODEC_ID_THEORA},
{"V_UNCOMPRESSED" , AV_CODEC_ID_RAWVIDEO},
{"V_VP8" , AV_CODEC_ID_VP8},
{"V_VP9" , AV_CODEC_ID_VP9},
{"" , AV_CODEC_ID_NONE}
};
const CodecMime ff_mkv_mime_tags[] = {
{"text/plain" , AV_CODEC_ID_TEXT},
{"image/gif" , AV_CODEC_ID_GIF},
{"image/jpeg" , AV_CODEC_ID_MJPEG},
{"image/png" , AV_CODEC_ID_PNG},
{"image/tiff" , AV_CODEC_ID_TIFF},
{"application/x-truetype-font", AV_CODEC_ID_TTF},
{"application/x-font" , AV_CODEC_ID_TTF},
{"application/vnd.ms-opentype", AV_CODEC_ID_OTF},
{"" , AV_CODEC_ID_NONE}
};
const AVMetadataConv ff_mkv_metadata_conv[] = {
{ "LEAD_PERFORMER", "performer" },
{ "PART_NUMBER" , "track" },
{ 0 }
};
const char * const ff_matroska_video_stereo_mode[MATROSKA_VIDEO_STEREO_MODE_COUNT] = {
"mono",
"left_right",
"bottom_top",
"top_bottom",
"checkerboard_rl",
"checkerboard_lr",
"row_interleaved_rl",
"row_interleaved_lr",
"col_interleaved_rl",
"col_interleaved_lr",
"anaglyph_cyan_red",
"right_left",
"anaglyph_green_magenta",
"block_lr",
"block_rl",
};
const char * const ff_matroska_video_stereo_plane[MATROSKA_VIDEO_STEREO_PLANE_COUNT] = {
"left",
"right",
"background",
};