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326 lines
16 KiB
326 lines
16 KiB
/* |
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* ISO Media common code |
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* Copyright (c) 2001 Fabrice Bellard |
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* Copyright (c) 2002 Francois Revol <revol@free.fr> |
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* Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "avformat.h" |
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#include "internal.h" |
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#include "isom.h" |
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/* http://www.mp4ra.org */ |
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/* ordered by muxing preference */ |
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const AVCodecTag ff_mp4_obj_type[] = { |
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{ CODEC_ID_MOV_TEXT , 0x08 }, |
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{ CODEC_ID_MPEG4 , 0x20 }, |
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{ CODEC_ID_H264 , 0x21 }, |
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{ CODEC_ID_AAC , 0x40 }, |
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{ CODEC_ID_MP4ALS , 0x40 }, /* 14496-3 ALS */ |
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{ CODEC_ID_MPEG2VIDEO, 0x61 }, /* MPEG2 Main */ |
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{ CODEC_ID_MPEG2VIDEO, 0x60 }, /* MPEG2 Simple */ |
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{ CODEC_ID_MPEG2VIDEO, 0x62 }, /* MPEG2 SNR */ |
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{ CODEC_ID_MPEG2VIDEO, 0x63 }, /* MPEG2 Spatial */ |
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{ CODEC_ID_MPEG2VIDEO, 0x64 }, /* MPEG2 High */ |
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{ CODEC_ID_MPEG2VIDEO, 0x65 }, /* MPEG2 422 */ |
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{ CODEC_ID_AAC , 0x66 }, /* MPEG2 AAC Main */ |
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{ CODEC_ID_AAC , 0x67 }, /* MPEG2 AAC Low */ |
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{ CODEC_ID_AAC , 0x68 }, /* MPEG2 AAC SSR */ |
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{ CODEC_ID_MP3 , 0x69 }, /* 13818-3 */ |
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{ CODEC_ID_MP2 , 0x69 }, /* 11172-3 */ |
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{ CODEC_ID_MPEG1VIDEO, 0x6A }, /* 11172-2 */ |
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{ CODEC_ID_MP3 , 0x6B }, /* 11172-3 */ |
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{ CODEC_ID_MJPEG , 0x6C }, /* 10918-1 */ |
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{ CODEC_ID_PNG , 0x6D }, |
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{ CODEC_ID_JPEG2000 , 0x6E }, /* 15444-1 */ |
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{ CODEC_ID_VC1 , 0xA3 }, |
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{ CODEC_ID_DIRAC , 0xA4 }, |
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{ CODEC_ID_AC3 , 0xA5 }, |
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{ CODEC_ID_VORBIS , 0xDD }, /* non standard, gpac uses it */ |
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{ CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */ |
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{ CODEC_ID_QCELP , 0xE1 }, |
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{ CODEC_ID_NONE , 0 }, |
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}; |
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const AVCodecTag codec_movvideo_tags[] = { |
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/* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* Uncompressed YUV422 */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, /* YUV with alpha-channel (AVID Uncompressed) */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2vuy but byte swapped */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') }, |
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{ CODEC_ID_R210, MKTAG('r', '2', '1', '0') }, /* UNCOMPRESSED 10BIT RGB */ |
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{ CODEC_ID_V210, MKTAG('v', '2', '1', '0') }, /* UNCOMPRESSED 10BIT 4:2:2 */ |
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{ CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */ |
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{ CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */ |
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{ CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */ |
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/* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */ |
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{ CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */ |
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{ CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */ |
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{ CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */ |
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{ CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */ |
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{ CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/ |
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{ CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */ |
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{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, |
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{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */ |
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{ CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') }, |
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{ CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */ |
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{ CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */ |
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{ CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */ |
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{ CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */ |
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{ CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */ |
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{ CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */ |
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{ CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */ |
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{ CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */ |
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{ CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */ |
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{ CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */ |
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{ CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */ |
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{ CODEC_ID_MSRLE, MKTAG('W', 'R', 'L', 'E') }, |
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{ CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') }, |
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{ CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */ |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */ |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG2 HDV 720p30 */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 HDV 1080i60 */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG2 HDV 1080i50 */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG2 HDV 720p25 */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG2 HDV 1080p24 */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG2 HDV 1080p25 */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG2 HDV 1080p30 */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG2 IMX PAL 625/50 40mb/s produced by FCP */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, |
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{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */ |
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{ CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */ |
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{ CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */ |
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{ CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */ |
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{ CODEC_ID_PNG, MKTAG('p', 'n', 'g', ' ') }, |
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{ CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */ |
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{ CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') }, |
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{ CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') }, |
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{ CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'u', 'p') }, |
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{ CODEC_ID_SGI, MKTAG('s', 'g', 'i', ' ') }, /* SGI */ |
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{ CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') }, /* DPX */ |
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{ CODEC_ID_NONE, 0 }, |
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}; |
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const AVCodecTag codec_movaudio_tags[] = { |
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{ CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') }, |
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{ CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') }, |
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{ CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') }, |
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{ CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') }, |
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{ CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, /* 16 bits */ |
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{ CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, /* */ |
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{ CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') }, |
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{ CODEC_ID_PCM_F32BE, MKTAG('f', 'l', '3', '2') }, |
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{ CODEC_ID_PCM_F32LE, MKTAG('f', 'l', '3', '2') }, |
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{ CODEC_ID_PCM_F64BE, MKTAG('f', 'l', '6', '4') }, |
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{ CODEC_ID_PCM_F64LE, MKTAG('f', 'l', '6', '4') }, |
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{ CODEC_ID_PCM_S8, MKTAG('s', 'o', 'w', 't') }, |
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{ CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, /* 8 bits unsigned */ |
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{ CODEC_ID_PCM_U8, MKTAG('N', 'O', 'N', 'E') }, /* uncompressed */ |
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{ CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, /* */ |
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{ CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, /* */ |
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{ CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, /* IMA-4 ADPCM */ |
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{ CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, /* Macintosh Audio Compression and Expansion 3:1 */ |
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{ CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, /* Macintosh Audio Compression and Expansion 6:1 */ |
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{ CODEC_ID_MP1, MKTAG('.', 'm', 'p', '1') }, /* MPEG layer 1 */ |
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{ CODEC_ID_MP2, MKTAG('.', 'm', 'p', '2') }, /* MPEG layer 2 */ |
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{ CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') }, /* MPEG layer 3 */ /* sample files at http://www.3ivx.com/showcase.html use this tag */ |
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{ CODEC_ID_MP3, 0x6D730055 }, /* MPEG layer 3 */ |
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/* { CODEC_ID_OGG_VORBIS, MKTAG('O', 'g', 'g', 'S') }, *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */ |
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{ CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */ |
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{ CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */ |
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{ CODEC_ID_AC3, MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */ |
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{ CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */ |
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{ CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */ |
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{ CODEC_ID_GSM, MKTAG('a', 'g', 's', 'm') }, |
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{ CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') }, /* Apple Lossless */ |
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{ CODEC_ID_QCELP, MKTAG('Q','c','l','p') }, |
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{ CODEC_ID_QCELP, MKTAG('Q','c','l','q') }, |
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{ CODEC_ID_QCELP, MKTAG('s','q','c','p') }, /* ISO Media fourcc */ |
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{ CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') }, /* QDM2 */ |
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{ CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') }, |
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{ CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') }, |
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{ CODEC_ID_WMAV2, MKTAG('W', 'M', 'A', '2') }, |
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{ CODEC_ID_NONE, 0 }, |
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}; |
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const AVCodecTag ff_codec_movsubtitle_tags[] = { |
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{ CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') }, |
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{ CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') }, |
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{ CODEC_ID_NONE, 0 }, |
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}; |
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/* map numeric codes from mdhd atom to ISO 639 */ |
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/* cf. QTFileFormat.pdf p253, qtff.pdf p205 */ |
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/* http://developer.apple.com/documentation/mac/Text/Text-368.html */ |
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/* deprecated by putting the code as 3*5bit ascii */ |
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static const char mov_mdhd_language_map[][4] = { |
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/* 0-9 */ |
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"eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor", |
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"heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/, |
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"urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", "", |
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"fo ", "", "rus", "chi", "", "iri", "alb", "ron", "ces", "slk", |
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"slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze", |
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/*?*/ |
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"aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", "", "pus", |
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"kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj", |
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"pa ", "ori", "mal", "kan", "tam", "tel", "", "bur", "khm", "lao", |
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/* roman? arabic? */ |
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"vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa", |
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/*==rundi?*/ |
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"", "run", "", "mlg", "epo", "", "", "", "", "", |
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/* 100 */ |
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"", "", "", "", "", "", "", "", "", "", |
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"", "", "", "", "", "", "", "", "", "", |
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"", "", "", "", "", "", "", "", "wel", "baq", |
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"cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav" |
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}; |
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int ff_mov_iso639_to_lang(const char lang[4], int mp4) |
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{ |
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int i, code = 0; |
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/* old way, only for QT? */ |
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for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) { |
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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"; |
|
/* 5bit 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 > 138) { |
|
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; |
|
}
|
|
|