yading@11: /* yading@11: * ISO Media common code yading@11: * Copyright (c) 2001 Fabrice Bellard yading@11: * Copyright (c) 2002 Francois Revol yading@11: * Copyright (c) 2006 Baptiste Coudurier yading@11: * yading@11: * This file is part of FFmpeg. yading@11: * yading@11: * FFmpeg is free software; you can redistribute it and/or yading@11: * modify it under the terms of the GNU Lesser General Public yading@11: * License as published by the Free Software Foundation; either yading@11: * version 2.1 of the License, or (at your option) any later version. yading@11: * yading@11: * FFmpeg is distributed in the hope that it will be useful, yading@11: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@11: * Lesser General Public License for more details. yading@11: * yading@11: * You should have received a copy of the GNU Lesser General Public yading@11: * License along with FFmpeg; if not, write to the Free Software yading@11: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@11: */ yading@11: yading@11: //#define DEBUG yading@11: yading@11: #include "avformat.h" yading@11: #include "internal.h" yading@11: #include "isom.h" yading@11: #include "libavcodec/mpeg4audio.h" yading@11: #include "libavcodec/mpegaudiodata.h" yading@11: yading@11: /* http://www.mp4ra.org */ yading@11: /* ordered by muxing preference */ yading@11: const AVCodecTag ff_mp4_obj_type[] = { yading@11: { AV_CODEC_ID_MOV_TEXT , 0x08 }, yading@11: { AV_CODEC_ID_MPEG4 , 0x20 }, yading@11: { AV_CODEC_ID_H264 , 0x21 }, yading@11: { AV_CODEC_ID_AAC , 0x40 }, yading@11: { AV_CODEC_ID_MP4ALS , 0x40 }, /* 14496-3 ALS */ yading@11: { AV_CODEC_ID_MPEG2VIDEO , 0x61 }, /* MPEG2 Main */ yading@11: { AV_CODEC_ID_MPEG2VIDEO , 0x60 }, /* MPEG2 Simple */ yading@11: { AV_CODEC_ID_MPEG2VIDEO , 0x62 }, /* MPEG2 SNR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO , 0x63 }, /* MPEG2 Spatial */ yading@11: { AV_CODEC_ID_MPEG2VIDEO , 0x64 }, /* MPEG2 High */ yading@11: { AV_CODEC_ID_MPEG2VIDEO , 0x65 }, /* MPEG2 422 */ yading@11: { AV_CODEC_ID_AAC , 0x66 }, /* MPEG2 AAC Main */ yading@11: { AV_CODEC_ID_AAC , 0x67 }, /* MPEG2 AAC Low */ yading@11: { AV_CODEC_ID_AAC , 0x68 }, /* MPEG2 AAC SSR */ yading@11: { AV_CODEC_ID_MP3 , 0x69 }, /* 13818-3 */ yading@11: { AV_CODEC_ID_MP2 , 0x69 }, /* 11172-3 */ yading@11: { AV_CODEC_ID_MPEG1VIDEO , 0x6A }, /* 11172-2 */ yading@11: { AV_CODEC_ID_MP3 , 0x6B }, /* 11172-3 */ yading@11: { AV_CODEC_ID_MJPEG , 0x6C }, /* 10918-1 */ yading@11: { AV_CODEC_ID_PNG , 0x6D }, yading@11: { AV_CODEC_ID_JPEG2000 , 0x6E }, /* 15444-1 */ yading@11: { AV_CODEC_ID_VC1 , 0xA3 }, yading@11: { AV_CODEC_ID_DIRAC , 0xA4 }, yading@11: { AV_CODEC_ID_AC3 , 0xA5 }, yading@11: { AV_CODEC_ID_DTS , 0xA9 }, /* mp4ra.org */ yading@11: { AV_CODEC_ID_VORBIS , 0xDD }, /* non standard, gpac uses it */ yading@11: { AV_CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */ yading@11: { AV_CODEC_ID_QCELP , 0xE1 }, yading@11: { AV_CODEC_ID_MPEG4SYSTEMS, 0x01 }, yading@11: { AV_CODEC_ID_MPEG4SYSTEMS, 0x02 }, yading@11: { AV_CODEC_ID_NONE , 0 }, yading@11: }; yading@11: yading@11: const AVCodecTag ff_codec_movvideo_tags[] = { yading@11: /* { AV_CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */ yading@11: yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */ yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* Uncompressed YUV422 */ yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */ yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2vuy but byte swapped */ yading@11: yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'b', 'g') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'r', 'g') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'y', 'v') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('N', 'O', '1', '6') }, yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */ yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', '2', '0') }, /* Radius DV YUV PAL */ yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', '1', '1') }, /* Radius DV YUV NTSC */ yading@11: yading@11: { AV_CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') }, /* UNCOMPRESSED 10BIT RGB */ yading@11: { AV_CODEC_ID_R10K, MKTAG('R', '1', '0', 'g') }, /* UNCOMPRESSED 10BIT RGB */ yading@11: { AV_CODEC_ID_R210, MKTAG('r', '2', '1', '0') }, /* UNCOMPRESSED 10BIT RGB */ yading@11: { AV_CODEC_ID_AVUI, MKTAG('A', 'V', 'U', 'I') }, /* AVID Uncompressed deinterleaved UYVY422 */ yading@11: { AV_CODEC_ID_AVRP, MKTAG('A', 'V', 'r', 'p') }, /* Avid 1:1 10-bit RGB Packer */ yading@11: { AV_CODEC_ID_AVRP, MKTAG('S', 'U', 'D', 'S') }, /* Avid DS Uncompressed */ yading@11: { AV_CODEC_ID_V210, MKTAG('v', '2', '1', '0') }, /* UNCOMPRESSED 10BIT 4:2:2 */ yading@11: { AV_CODEC_ID_V210, MKTAG('b', 'x', 'y', '2') }, /* BOXX 10BIT 4:2:2 */ yading@11: { AV_CODEC_ID_V308, MKTAG('v', '3', '0', '8') }, /* UNCOMPRESSED 8BIT 4:4:4 */ yading@11: { AV_CODEC_ID_V408, MKTAG('v', '4', '0', '8') }, /* UNCOMPRESSED 8BIT 4:4:4:4 */ yading@11: { AV_CODEC_ID_V410, MKTAG('v', '4', '1', '0') }, /* UNCOMPRESSED 10BIT 4:4:4 */ yading@11: { AV_CODEC_ID_Y41P, MKTAG('Y', '4', '1', 'P') }, /* UNCOMPRESSED 12BIT 4:1:1 */ yading@11: { AV_CODEC_ID_YUV4, MKTAG('y', 'u', 'v', '4') }, /* libquicktime packed yuv420p */ yading@11: { AV_CODEC_ID_TARGA_Y216, MKTAG('Y', '2', '1', '6') }, yading@11: yading@11: { AV_CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */ yading@11: { AV_CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */ yading@11: { AV_CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */ yading@11: /* { AV_CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */ yading@11: { AV_CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */ yading@11: { AV_CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */ yading@11: yading@11: { AV_CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */ yading@11: { AV_CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */ yading@11: { AV_CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/ yading@11: { AV_CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */ yading@11: yading@11: { AV_CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, yading@11: { AV_CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */ yading@11: { AV_CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') }, yading@11: { AV_CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */ yading@11: yading@11: { AV_CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */ yading@11: { AV_CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */ yading@11: yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') }, yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') }, yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') }, yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */ yading@11: { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */ yading@11: yading@11: { AV_CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */ yading@11: { AV_CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */ yading@11: { AV_CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */ yading@11: { AV_CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */ yading@11: { AV_CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */ yading@11: { AV_CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */ yading@11: { AV_CODEC_ID_SGIRLE, MKTAG('r', 'l', 'e', '1') }, /* SGI RLE 8-bit */ yading@11: { AV_CODEC_ID_MSRLE, MKTAG('W', 'R', 'L', 'E') }, yading@11: { AV_CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */ yading@11: yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') }, yading@11: yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'p') }, /* AVC-Intra 50M 720p24/30/60 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'q') }, /* AVC-Intra 50M 720p25/50 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '2') }, /* AVC-Intra 50M 1080p25/50 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '3') }, /* AVC-Intra 50M 1080p24/30/60 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '5') }, /* AVC-Intra 50M 1080i50 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '6') }, /* AVC-Intra 50M 1080i60 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'p') }, /* AVC-Intra 100M 720p24/30/60 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'q') }, /* AVC-Intra 100M 720p25/50 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '2') }, /* AVC-Intra 100M 1080p25/50 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '3') }, /* AVC-Intra 100M 1080p24/30/60 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* AVC-Intra 100M 1080i50 */ yading@11: { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '6') }, /* AVC-Intra 100M 1080i60 */ yading@11: { AV_CODEC_ID_H264, MKTAG('A', 'V', 'i', 'n') }, /* AVC-Intra with implicit SPS/PPS */ yading@11: yading@11: { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */ yading@11: { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */ yading@11: { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', ' ') }, yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG2 HDV 720p30 */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 HDV 1080i60 */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG2 HDV 1080i50 */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '4') }, /* MPEG2 HDV 720p24 */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG2 HDV 720p25 */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG2 HDV 1080p24 */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG2 HDV 1080p25 */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG2 HDV 1080p30 */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '9') }, /* MPEG2 HDV 720p60 JVC */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', 'a') }, /* MPEG2 HDV 720p50 */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG2 IMX PAL 625/50 40mb/s produced by FCP */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '4') }, /* XDCAM HD422 720p24 CBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '5') }, /* XDCAM HD422 720p25 CBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', 'd') }, /* XDCAM HD 540p */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', '2') }, /* XDCAM HD422 540p */ yading@11: { AV_CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */ yading@11: yading@11: { AV_CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */ yading@11: yading@11: { AV_CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */ yading@11: { AV_CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */ yading@11: { AV_CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */ yading@11: { AV_CODEC_ID_PNG, MKTAG('p', 'n', 'g', ' ') }, yading@11: { AV_CODEC_ID_PNG, MKTAG('M', 'N', 'G', ' ') }, yading@11: yading@11: { AV_CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */ yading@11: { AV_CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') }, yading@11: yading@11: { AV_CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') }, yading@11: { AV_CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */ yading@11: { AV_CODEC_ID_H263, MKTAG('H', '2', '6', '3') }, yading@11: { AV_CODEC_ID_MSMPEG4V3, MKTAG('3', 'I', 'V', 'D') }, /* 3ivx DivX Doctor */ yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */ yading@11: { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'u', 'p') }, yading@11: { AV_CODEC_ID_SGI, MKTAG('s', 'g', 'i', ' ') }, /* SGI */ yading@11: { AV_CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') }, /* DPX */ yading@11: { AV_CODEC_ID_EXR, MKTAG('e', 'x', 'r', ' ') }, /* OpenEXR */ yading@11: yading@11: { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */ yading@11: { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */ yading@11: { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */ yading@11: { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */ yading@11: { AV_CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */ yading@11: { AV_CODEC_ID_FLIC, MKTAG('f', 'l', 'i', 'c') }, yading@11: yading@11: { AV_CODEC_ID_NONE, 0 }, yading@11: }; yading@11: yading@11: const AVCodecTag ff_codec_movaudio_tags[] = { yading@11: { AV_CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, yading@11: { AV_CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */ yading@11: { AV_CODEC_ID_AC3, MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */ yading@11: { AV_CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') }, yading@11: { AV_CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') }, yading@11: { AV_CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */ yading@11: { AV_CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */ yading@11: { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'c') }, /* DTS formats prior to DTS-HD */ yading@11: { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'h') }, /* DTS-HD audio formats */ yading@11: { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'l') }, /* DTS-HD Lossless formats */ yading@11: { AV_CODEC_ID_DTS, MKTAG('D', 'T', 'S', ' ') }, /* non-standard */ yading@11: { AV_CODEC_ID_EAC3, MKTAG('e', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F (only valid in ISOBMFF) */ yading@11: { AV_CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') }, yading@11: { AV_CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') }, yading@11: { AV_CODEC_ID_GSM, MKTAG('a', 'g', 's', 'm') }, yading@11: { AV_CODEC_ID_ILBC, MKTAG('i', 'l', 'b', 'c') }, yading@11: { AV_CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') }, yading@11: { AV_CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') }, yading@11: { AV_CODEC_ID_MP1, MKTAG('.', 'm', 'p', '1') }, yading@11: { AV_CODEC_ID_MP2, MKTAG('.', 'm', 'p', '2') }, yading@11: { AV_CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') }, yading@11: { AV_CODEC_ID_MP3, 0x6D730055 }, yading@11: { AV_CODEC_ID_NELLYMOSER, MKTAG('n', 'm', 'o', 's') }, /* Flash Media Server */ yading@11: { AV_CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') }, yading@11: { AV_CODEC_ID_PCM_F32BE, MKTAG('f', 'l', '3', '2') }, yading@11: { AV_CODEC_ID_PCM_F32LE, MKTAG('f', 'l', '3', '2') }, yading@11: { AV_CODEC_ID_PCM_F64BE, MKTAG('f', 'l', '6', '4') }, yading@11: { AV_CODEC_ID_PCM_F64LE, MKTAG('f', 'l', '6', '4') }, yading@11: { AV_CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') }, yading@11: { AV_CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') }, yading@11: { AV_CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') }, yading@11: { AV_CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') }, yading@11: { AV_CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') }, yading@11: { AV_CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') }, yading@11: { AV_CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') }, yading@11: { AV_CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') }, yading@11: { AV_CODEC_ID_PCM_S8, MKTAG('s', 'o', 'w', 't') }, yading@11: { AV_CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') }, yading@11: { AV_CODEC_ID_PCM_U8, MKTAG('N', 'O', 'N', 'E') }, yading@11: { AV_CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'p') }, yading@11: { AV_CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'q') }, yading@11: { AV_CODEC_ID_QCELP, MKTAG('s', 'q', 'c', 'p') }, /* ISO Media fourcc */ yading@11: { AV_CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') }, yading@11: { AV_CODEC_ID_QDMC, MKTAG('Q', 'D', 'M', 'C') }, yading@11: { AV_CODEC_ID_SPEEX, MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */ yading@11: { AV_CODEC_ID_SPEEX, MKTAG('S', 'P', 'X', 'N') }, yading@11: { AV_CODEC_ID_WMAV2, MKTAG('W', 'M', 'A', '2') }, yading@11: { AV_CODEC_ID_EVRC, MKTAG('s', 'e', 'v', 'c') }, /* 3GPP2 */ yading@11: { AV_CODEC_ID_SMV, MKTAG('s', 's', 'm', 'v') }, /* 3GPP2 */ yading@11: { AV_CODEC_ID_NONE, 0 }, yading@11: }; yading@11: yading@11: const AVCodecTag ff_codec_movsubtitle_tags[] = { yading@11: { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') }, yading@11: { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') }, yading@11: { AV_CODEC_ID_EIA_608, MKTAG('c', '6', '0', '8') }, yading@11: { AV_CODEC_ID_NONE, 0 }, yading@11: }; yading@11: yading@11: /* map numeric codes from mdhd atom to ISO 639 */ yading@11: /* cf. QTFileFormat.pdf p253, qtff.pdf p205 */ yading@11: /* http://developer.apple.com/documentation/mac/Text/Text-368.html */ yading@11: /* deprecated by putting the code as 3*5bit ascii */ yading@11: static const char mov_mdhd_language_map[][4] = { yading@11: /* 0-9 */ yading@11: "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor", yading@11: "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/, yading@11: "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", "", yading@11: "fo ", "", "rus", "chi", "", "iri", "alb", "ron", "ces", "slk", yading@11: "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze", yading@11: /*?*/ yading@11: "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", "", "pus", yading@11: "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj", yading@11: "pa ", "ori", "mal", "kan", "tam", "tel", "", "bur", "khm", "lao", yading@11: /* roman? arabic? */ yading@11: "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa", yading@11: /*==rundi?*/ yading@11: "", "run", "", "mlg", "epo", "", "", "", "", "", yading@11: /* 100 */ yading@11: "", "", "", "", "", "", "", "", "", "", yading@11: "", "", "", "", "", "", "", "", "", "", yading@11: "", "", "", "", "", "", "", "", "wel", "baq", yading@11: "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav" yading@11: }; yading@11: yading@11: int ff_mov_iso639_to_lang(const char lang[4], int mp4) yading@11: { yading@11: int i, code = 0; yading@11: yading@11: /* old way, only for QT? */ yading@11: for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) { yading@11: if (!strcmp(lang, mov_mdhd_language_map[i])) yading@11: return i; yading@11: } yading@11: /* XXX:can we do that in mov too? */ yading@11: if (!mp4) yading@11: return -1; yading@11: /* handle undefined as such */ yading@11: if (lang[0] == '\0') yading@11: lang = "und"; yading@11: /* 5bit ascii */ yading@11: for (i = 0; i < 3; i++) { yading@11: uint8_t c = lang[i]; yading@11: c -= 0x60; yading@11: if (c > 0x1f) yading@11: return -1; yading@11: code <<= 5; yading@11: code |= c; yading@11: } yading@11: return code; yading@11: } yading@11: yading@11: int ff_mov_lang_to_iso639(unsigned code, char to[4]) yading@11: { yading@11: int i; yading@11: memset(to, 0, 4); yading@11: /* is it the mangled iso code? */ yading@11: /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */ yading@11: if (code >= 0x400 && code != 0x7fff) { yading@11: for (i = 2; i >= 0; i--) { yading@11: to[i] = 0x60 + (code & 0x1f); yading@11: code >>= 5; yading@11: } yading@11: return 1; yading@11: } yading@11: /* old fashion apple lang code */ yading@11: if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map)) yading@11: return 0; yading@11: if (!mov_mdhd_language_map[code][0]) yading@11: return 0; yading@11: memcpy(to, mov_mdhd_language_map[code], 4); yading@11: return 1; yading@11: } yading@11: yading@11: int ff_mp4_read_descr_len(AVIOContext *pb) yading@11: { yading@11: int len = 0; yading@11: int count = 4; yading@11: while (count--) { yading@11: int c = avio_r8(pb); yading@11: len = (len << 7) | (c & 0x7f); yading@11: if (!(c & 0x80)) yading@11: break; yading@11: } yading@11: return len; yading@11: } yading@11: yading@11: int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag) yading@11: { yading@11: int len; yading@11: *tag = avio_r8(pb); yading@11: len = ff_mp4_read_descr_len(pb); yading@11: av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len); yading@11: return len; yading@11: } yading@11: yading@11: void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id) yading@11: { yading@11: int flags; yading@11: if (es_id) *es_id = avio_rb16(pb); yading@11: else avio_rb16(pb); yading@11: flags = avio_r8(pb); yading@11: if (flags & 0x80) //streamDependenceFlag yading@11: avio_rb16(pb); yading@11: if (flags & 0x40) { //URL_Flag yading@11: int len = avio_r8(pb); yading@11: avio_skip(pb, len); yading@11: } yading@11: if (flags & 0x20) //OCRstreamFlag yading@11: avio_rb16(pb); yading@11: } yading@11: yading@11: static const AVCodecTag mp4_audio_types[] = { yading@11: { AV_CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */ yading@11: { AV_CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */ yading@11: { AV_CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */ yading@11: { AV_CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */ yading@11: { AV_CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */ yading@11: { AV_CODEC_ID_NONE, AOT_NULL }, yading@11: }; yading@11: yading@11: int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb) yading@11: { yading@11: int len, tag; yading@11: int object_type_id = avio_r8(pb); yading@11: avio_r8(pb); /* stream type */ yading@11: avio_rb24(pb); /* buffer size db */ yading@11: avio_rb32(pb); /* max bitrate */ yading@11: avio_rb32(pb); /* avg bitrate */ yading@11: yading@11: if(avcodec_is_open(st->codec)) { yading@11: av_log(fc, AV_LOG_DEBUG, "codec open in read_dec_config_descr\n"); yading@11: return -1; yading@11: } yading@11: yading@11: st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id); yading@11: av_dlog(fc, "esds object type id 0x%02x\n", object_type_id); yading@11: len = ff_mp4_read_descr(fc, pb, &tag); yading@11: if (tag == MP4DecSpecificDescrTag) { yading@11: av_dlog(fc, "Specific MPEG4 header len=%d\n", len); yading@11: if (!len || (uint64_t)len > (1<<30)) yading@11: return -1; yading@11: av_free(st->codec->extradata); yading@11: st->codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE); yading@11: if (!st->codec->extradata) yading@11: return AVERROR(ENOMEM); yading@11: avio_read(pb, st->codec->extradata, len); yading@11: st->codec->extradata_size = len; yading@11: if (st->codec->codec_id == AV_CODEC_ID_AAC) { yading@11: MPEG4AudioConfig cfg; yading@11: avpriv_mpeg4audio_get_config(&cfg, st->codec->extradata, yading@11: st->codec->extradata_size * 8, 1); yading@11: st->codec->channels = cfg.channels; yading@11: if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4 yading@11: st->codec->sample_rate = avpriv_mpa_freq_tab[cfg.sampling_index]; yading@11: else if (cfg.ext_sample_rate) yading@11: st->codec->sample_rate = cfg.ext_sample_rate; yading@11: else yading@11: st->codec->sample_rate = cfg.sample_rate; yading@11: av_dlog(fc, "mp4a config channels %d obj %d ext obj %d " yading@11: "sample rate %d ext sample rate %d\n", st->codec->channels, yading@11: cfg.object_type, cfg.ext_object_type, yading@11: cfg.sample_rate, cfg.ext_sample_rate); yading@11: if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types, yading@11: cfg.object_type))) yading@11: st->codec->codec_id = AV_CODEC_ID_AAC; yading@11: } yading@11: } yading@11: return 0; yading@11: } yading@11: yading@11: typedef struct MovChannelLayout { yading@11: int64_t channel_layout; yading@11: uint32_t layout_tag; yading@11: } MovChannelLayout; yading@11: yading@11: static const MovChannelLayout mov_channel_layout[] = { yading@11: { AV_CH_LAYOUT_MONO, (100<<16) | 1}, // kCAFChannelLayoutTag_Mono yading@11: { AV_CH_LAYOUT_STEREO, (101<<16) | 2}, // kCAFChannelLayoutTag_Stereo yading@11: { AV_CH_LAYOUT_STEREO, (102<<16) | 2}, // kCAFChannelLayoutTag_StereoHeadphones yading@11: { AV_CH_LAYOUT_2_1, (131<<16) | 3}, // kCAFChannelLayoutTag_ITU_2_1 yading@11: { AV_CH_LAYOUT_QUAD, (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2 yading@11: { AV_CH_LAYOUT_2_2, (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2 yading@11: { AV_CH_LAYOUT_QUAD, (108<<16) | 4}, // kCAFChannelLayoutTag_Quadraphonic yading@11: { AV_CH_LAYOUT_SURROUND, (113<<16) | 3}, // kCAFChannelLayoutTag_MPEG_3_0_A yading@11: { AV_CH_LAYOUT_4POINT0, (115<<16) | 4}, // kCAFChannelLayoutTag_MPEG_4_0_A yading@11: { AV_CH_LAYOUT_5POINT0_BACK, (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A yading@11: { AV_CH_LAYOUT_5POINT0, (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A yading@11: { AV_CH_LAYOUT_5POINT1_BACK, (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A yading@11: { AV_CH_LAYOUT_5POINT1, (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A yading@11: { AV_CH_LAYOUT_7POINT1, (128<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_C yading@11: { AV_CH_LAYOUT_7POINT1_WIDE, (126<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_A yading@11: { AV_CH_LAYOUT_5POINT1_BACK|AV_CH_LAYOUT_STEREO_DOWNMIX, (130<<16) | 8}, // kCAFChannelLayoutTag_SMPTE_DTV yading@11: { AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY, (133<<16) | 3}, // kCAFChannelLayoutTag_DVD_4 yading@11: { AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY, (134<<16) | 4}, // kCAFChannelLayoutTag_DVD_5 yading@11: { AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY, (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6 yading@11: { AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY, (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6 yading@11: { AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY, (136<<16) | 4}, // kCAFChannelLayoutTag_DVD_10 yading@11: { AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY, (137<<16) | 5}, // kCAFChannelLayoutTag_DVD_11 yading@11: { 0, 0}, yading@11: }; yading@11: #if 0 yading@11: int ff_mov_read_chan(AVFormatContext *s, AVStream *st, int64_t size) yading@11: { yading@11: AVCodecContext *codec= st->codec; yading@11: uint32_t layout_tag; yading@11: AVIOContext *pb = s->pb; yading@11: const MovChannelLayout *layouts = mov_channel_layout; yading@11: yading@11: if (size < 12) yading@11: return AVERROR_INVALIDDATA; yading@11: yading@11: layout_tag = avio_rb32(pb); yading@11: size -= 4; yading@11: if (layout_tag == 0) { // kCAFChannelLayoutTag_UseChannelDescriptions yading@11: // Channel descriptions not implemented yading@11: av_log_ask_for_sample(s, "Unimplemented container channel layout.\n"); yading@11: avio_skip(pb, size); yading@11: return 0; yading@11: } yading@11: if (layout_tag == 0x10000) { // kCAFChannelLayoutTag_UseChannelBitmap yading@11: codec->channel_layout = avio_rb32(pb); yading@11: size -= 4; yading@11: avio_skip(pb, size); yading@11: return 0; yading@11: } yading@11: while (layouts->channel_layout) { yading@11: if (layout_tag == layouts->layout_tag) { yading@11: codec->channel_layout = layouts->channel_layout; yading@11: break; yading@11: } yading@11: layouts++; yading@11: } yading@11: if (!codec->channel_layout) yading@11: av_log(s, AV_LOG_WARNING, "Unknown container channel layout.\n"); yading@11: avio_skip(pb, size); yading@11: yading@11: return 0; yading@11: } yading@11: #endif yading@11: yading@11: void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout) yading@11: { yading@11: const MovChannelLayout *layouts; yading@11: uint32_t layout_tag = 0; yading@11: yading@11: for (layouts = mov_channel_layout; layouts->channel_layout; layouts++) yading@11: if (channel_layout == layouts->channel_layout) { yading@11: layout_tag = layouts->layout_tag; yading@11: break; yading@11: } yading@11: yading@11: if (layout_tag) { yading@11: avio_wb32(pb, layout_tag); // mChannelLayoutTag yading@11: avio_wb32(pb, 0); // mChannelBitmap yading@11: } else { yading@11: avio_wb32(pb, 0x10000); // kCAFChannelLayoutTag_UseChannelBitmap yading@11: avio_wb32(pb, channel_layout); yading@11: } yading@11: avio_wb32(pb, 0); // mNumberChannelDescriptions yading@11: } yading@11: