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ffmpeg / libavformat / isom.c @ e65b1934

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/*
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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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//#define DEBUG
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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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#include "riff.h"
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#include "libavcodec/mpeg4audio.h"
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#include "libavcodec/mpegaudiodata.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_R10K,   MKTAG('R', '1', '0', 'k') }, /* UNCOMPRESSED 10BIT RGB */
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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_H264, MKTAG('a', 'i', '5', '5') }, /* Flip4Mac AVC Intra 50 */
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    { CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* Flip4Mac AVC Intra 100 */
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    { CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
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    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
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    { CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */
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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', '4') }, /* XDCAM HD422 720p24 CBR */
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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_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_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */
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    { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */
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    { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */
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    { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */
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    { CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */
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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 */
241

    
242
    { 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 */
244

    
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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 */
247

    
248
    { 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 */
251

    
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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') },
256

    
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    { CODEC_ID_WMAV2, MKTAG('W', 'M', 'A', '2') },
258

    
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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 */
271
/* 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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    /*?*/
280
    "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon",    "", "pus",
281
    "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
282
    "pa ", "ori", "mal", "kan", "tam", "tel",    "", "bur", "khm", "lao",
283
    /*                   roman? arabic? */
284
    "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
285
    /*==rundi?*/
286
       "", "run",    "", "mlg", "epo",    "",    "",    "",    "",    "",
287
    /* 100 */
288
       "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
289
       "",    "",    "",    "",    "",    "",    "",    "",    "",    "",
290
       "",    "",    "",    "",    "",    "",    "",    "", "wel", "baq",
291
    "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
292
};
293

    
294
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
295
{
296
    int i, code = 0;
297

    
298
    /* old way, only for QT? */
299
    for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
300
        if (!strcmp(lang, mov_mdhd_language_map[i]))
301
            return i;
302
    }
303
    /* XXX:can we do that in mov too? */
304
    if (!mp4)
305
        return -1;
306
    /* handle undefined as such */
307
    if (lang[0] == '\0')
308
        lang = "und";
309
    /* 5bit ascii */
310
    for (i = 0; i < 3; i++) {
311
        uint8_t c = lang[i];
312
        c -= 0x60;
313
        if (c > 0x1f)
314
            return -1;
315
        code <<= 5;
316
        code |= c;
317
    }
318
    return code;
319
}
320

    
321
int ff_mov_lang_to_iso639(unsigned code, char to[4])
322
{
323
    int i;
324
    memset(to, 0, 4);
325
    /* is it the mangled iso code? */
326
    /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
327
    if (code > 138) {
328
        for (i = 2; i >= 0; i--) {
329
            to[i] = 0x60 + (code & 0x1f);
330
            code >>= 5;
331
        }
332
        return 1;
333
    }
334
    /* old fashion apple lang code */
335
    if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
336
        return 0;
337
    if (!mov_mdhd_language_map[code][0])
338
        return 0;
339
    memcpy(to, mov_mdhd_language_map[code], 4);
340
    return 1;
341
}
342

    
343
int ff_mp4_read_descr_len(ByteIOContext *pb)
344
{
345
    int len = 0;
346
    int count = 4;
347
    while (count--) {
348
        int c = get_byte(pb);
349
        len = (len << 7) | (c & 0x7f);
350
        if (!(c & 0x80))
351
            break;
352
    }
353
    return len;
354
}
355

    
356
int ff_mp4_read_descr(AVFormatContext *fc, ByteIOContext *pb, int *tag)
357
{
358
    int len;
359
    *tag = get_byte(pb);
360
    len = ff_mp4_read_descr_len(pb);
361
    av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
362
    return len;
363
}
364

    
365
static const AVCodecTag mp4_audio_types[] = {
366
    { CODEC_ID_MP3ON4, AOT_PS   }, /* old mp3on4 draft */
367
    { CODEC_ID_MP3ON4, AOT_L1   }, /* layer 1 */
368
    { CODEC_ID_MP3ON4, AOT_L2   }, /* layer 2 */
369
    { CODEC_ID_MP3ON4, AOT_L3   }, /* layer 3 */
370
    { CODEC_ID_MP4ALS, AOT_ALS  }, /* MPEG-4 ALS */
371
    { CODEC_ID_NONE,   AOT_NULL },
372
};
373

    
374
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, ByteIOContext *pb)
375
{
376
    int len, tag;
377
    int object_type_id = get_byte(pb);
378
    get_byte(pb); /* stream type */
379
    get_be24(pb); /* buffer size db */
380
    get_be32(pb); /* max bitrate */
381
    get_be32(pb); /* avg bitrate */
382

    
383
    st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
384
    av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
385
    len = ff_mp4_read_descr(fc, pb, &tag);
386
    if (tag == MP4DecSpecificDescrTag) {
387
        av_dlog(fc, "Specific MPEG4 header len=%d\n", len);
388
        if((uint64_t)len > (1<<30))
389
            return -1;
390
        av_free(st->codec->extradata);
391
        st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE);
392
        if (!st->codec->extradata)
393
            return AVERROR(ENOMEM);
394
        get_buffer(pb, st->codec->extradata, len);
395
        st->codec->extradata_size = len;
396
        if (st->codec->codec_id == CODEC_ID_AAC) {
397
            MPEG4AudioConfig cfg;
398
            ff_mpeg4audio_get_config(&cfg, st->codec->extradata,
399
                                     st->codec->extradata_size);
400
            st->codec->channels = cfg.channels;
401
            if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
402
                st->codec->sample_rate = ff_mpa_freq_tab[cfg.sampling_index];
403
            else if (cfg.ext_sample_rate)
404
                st->codec->sample_rate = cfg.ext_sample_rate;
405
            else
406
                st->codec->sample_rate = cfg.sample_rate;
407
            av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "
408
                    "sample rate %d ext sample rate %d\n", st->codec->channels,
409
                    cfg.object_type, cfg.ext_object_type,
410
                    cfg.sample_rate, cfg.ext_sample_rate);
411
            if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
412
                                                        cfg.object_type)))
413
                st->codec->codec_id = CODEC_ID_AAC;
414
        }
415
    }
416
    return 0;
417
}