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789 lines
36 KiB
789 lines
36 KiB
/* |
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* RIFF codec tags |
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* Copyright (c) 2000 Fabrice Bellard |
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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 "libavutil/mathematics.h" |
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#include "libavcodec/avcodec.h" |
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#include "avformat.h" |
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#include "avio_internal.h" |
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#include "riff.h" |
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#include "libavcodec/bytestream.h" |
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#include "libavutil/avassert.h" |
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/* Note: when encoding, the first matching tag is used, so order is |
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important if multiple tags possible for a given codec. */ |
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const AVCodecTag ff_codec_bmp_tags[] = { |
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{ CODEC_ID_H264, MKTAG('H', '2', '6', '4') }, |
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{ CODEC_ID_H264, MKTAG('h', '2', '6', '4') }, |
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{ CODEC_ID_H264, MKTAG('X', '2', '6', '4') }, |
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{ CODEC_ID_H264, MKTAG('x', '2', '6', '4') }, |
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{ CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, |
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{ CODEC_ID_H264, MKTAG('D', 'A', 'V', 'C') }, |
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{ CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') }, |
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{ CODEC_ID_H264, MKTAG('Q', '2', '6', '4') }, /* QNAP surveillance system */ |
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{ CODEC_ID_H263, MKTAG('H', '2', '6', '3') }, |
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{ CODEC_ID_H263, MKTAG('X', '2', '6', '3') }, |
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{ CODEC_ID_H263, MKTAG('T', '2', '6', '3') }, |
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{ CODEC_ID_H263, MKTAG('L', '2', '6', '3') }, |
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{ CODEC_ID_H263, MKTAG('V', 'X', '1', 'K') }, |
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{ CODEC_ID_H263, MKTAG('Z', 'y', 'G', 'o') }, |
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{ CODEC_ID_H263, MKTAG('M', '2', '6', '3') }, |
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{ CODEC_ID_H263P, MKTAG('H', '2', '6', '3') }, |
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{ CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */ |
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{ CODEC_ID_H261, MKTAG('H', '2', '6', '1') }, |
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{ CODEC_ID_H263, MKTAG('U', '2', '6', '3') }, |
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{ CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4') }, |
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{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, |
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{ CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0') }, |
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{ CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') }, |
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{ CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') }, |
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{ CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') }, |
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{ CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 0 ) }, /* some broken avi use this */ |
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{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') }, |
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{ CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') }, |
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{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, |
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{ CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') }, |
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{ CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') }, |
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{ CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') }, |
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{ CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') }, |
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{ CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, |
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{ CODEC_ID_MPEG4, MKTAG('W', 'A', 'W', 'V') }, /* WaWv MPEG-4 Video Codec */ |
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{ CODEC_ID_MPEG4, MKTAG('F', 'F', 'D', 'S') }, |
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{ CODEC_ID_MPEG4, MKTAG('F', 'V', 'F', 'W') }, |
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{ CODEC_ID_MPEG4, MKTAG('D', 'C', 'O', 'D') }, |
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{ CODEC_ID_MPEG4, MKTAG('M', 'V', 'X', 'M') }, |
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{ CODEC_ID_MPEG4, MKTAG('P', 'M', '4', 'V') }, |
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{ CODEC_ID_MPEG4, MKTAG('S', 'M', 'P', '4') }, |
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{ CODEC_ID_MPEG4, MKTAG('D', 'X', 'G', 'M') }, |
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{ CODEC_ID_MPEG4, MKTAG('V', 'I', 'D', 'M') }, |
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{ CODEC_ID_MPEG4, MKTAG('M', '4', 'T', '3') }, |
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{ CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'X') }, |
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{ CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') }, /* flipped video */ |
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{ CODEC_ID_MPEG4, MKTAG('D', 'M', 'K', '2') }, |
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{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'G', 'I') }, |
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{ CODEC_ID_MPEG4, MKTAG('I', 'N', 'M', 'C') }, |
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{ CODEC_ID_MPEG4, MKTAG('E', 'P', 'H', 'V') }, /* Ephv MPEG-4 */ |
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{ CODEC_ID_MPEG4, MKTAG('E', 'M', '4', 'A') }, |
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{ CODEC_ID_MPEG4, MKTAG('M', '4', 'C', 'C') }, /* Divio MPEG-4 */ |
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{ CODEC_ID_MPEG4, MKTAG('S', 'N', '4', '0') }, |
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{ CODEC_ID_MPEG4, MKTAG('V', 'S', 'P', 'X') }, |
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{ CODEC_ID_MPEG4, MKTAG('U', 'L', 'D', 'X') }, |
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{ CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'V') }, |
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{ CODEC_ID_MPEG4, MKTAG('S', 'I', 'P', 'P') }, /* Samsung SHR-6040 */ |
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{ CODEC_ID_MPEG4, MKTAG('S', 'M', '4', 'V') }, |
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{ CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'X') }, |
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{ CODEC_ID_MPEG4, MKTAG('D', 'r', 'e', 'X') }, |
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{ CODEC_ID_MPEG4, MKTAG('Q', 'M', 'P', '4') }, /* QNAP Systems */ |
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{ CODEC_ID_MPEG4, MKTAG('P', 'L', 'V', '1') }, /* Pelco DVR MPEG-4 */ |
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{ CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'V', 'X', '3') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') }, |
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{ CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') }, |
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{ CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') }, |
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{ CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') }, |
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{ CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') }, |
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{ CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', '4', '1') }, |
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{ CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') }, |
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{ CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */ |
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{ CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', 'H') }, /* Canopus DV */ |
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{ CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', '5') }, /* Canopus DV */ |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 's') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'i', 's') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('p', 'd', 'v', 'c') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('S', 'L', '2', '5') }, |
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{ CODEC_ID_DVVIDEO, MKTAG('S', 'L', 'D', 'V') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('P', 'I', 'M', '2') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG( 1 , 0 , 0 , 16) }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG( 2 , 0 , 0 , 16) }, |
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{ CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 16) }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('s', 'l', 'i', 'f') }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('E', 'M', '2', 'V') }, |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('M', '7', '0', '1') }, /* Matrox MPEG2 intra-only */ |
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', 'v') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('B', 'W', '1', '0') }, |
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{ CODEC_ID_MPEG1VIDEO, MKTAG('X', 'M', 'P', 'G') }, /* Xing MPEG intra only */ |
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{ CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') }, |
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{ CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') }, |
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{ CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, |
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{ CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, |
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{ CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') }, |
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{ CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */ |
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{ CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */ |
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{ CODEC_ID_JPEGLS, MKTAG('M', 'J', 'P', 'G') }, |
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{ CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */ |
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{ CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, |
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{ CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') }, |
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{ CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, |
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{ CODEC_ID_MJPEG, MKTAG('A', 'C', 'D', 'V') }, |
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{ CODEC_ID_MJPEG, MKTAG('Q', 'I', 'V', 'G') }, |
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{ CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */ |
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{ CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */ |
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{ CODEC_ID_MJPEG, MKTAG('I', 'J', 'L', 'V') }, /* Intel JPEG Library Video Codec */ |
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{ CODEC_ID_MJPEG, MKTAG('M', 'V', 'J', 'P') }, /* Midvid JPEG Video Codec */ |
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{ CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '1') }, |
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{ CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '2') }, |
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{ CODEC_ID_MJPEG, MKTAG('M', 'T', 'S', 'J') }, |
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{ CODEC_ID_MJPEG, MKTAG('Z', 'J', 'P', 'G') }, /* Paradigm Matrix M-JPEG Codec */ |
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{ CODEC_ID_MJPEG, MKTAG('M', 'M', 'J', 'P') }, |
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{ CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') }, |
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{ CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') }, |
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{ CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG( 0 , 0 , 0 , 0 ) }, |
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{ CODEC_ID_RAWVIDEO, MKTAG( 3 , 0 , 0 , 0 ) }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('V', '4', '2', '2') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'N', 'V') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'V') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'Y') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('u', 'y', 'v', '1') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('2', 'V', 'u', '1') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('P', '4', '2', '2') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '6') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '2', '4') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('V', 'Y', 'U', 'Y') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '8', ' ', ' ') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */ |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', '1') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '1', '2') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '2', '1') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', 'B') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', 'B') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'V', '9') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('a', 'u', 'v', '2') }, |
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'Y', 'U') }, |
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{ CODEC_ID_FRWU, MKTAG('F', 'R', 'W', 'U') }, |
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{ CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') }, |
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{ CODEC_ID_R210, MKTAG('r', '2', '1', '0') }, |
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{ CODEC_ID_V210, MKTAG('v', '2', '1', '0') }, |
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{ CODEC_ID_V308, MKTAG('v', '3', '0', '8') }, |
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{ CODEC_ID_V408, MKTAG('v', '4', '0', '8') }, |
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{ CODEC_ID_AYUV, MKTAG('A', 'Y', 'U', 'V') }, |
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{ CODEC_ID_V410, MKTAG('v', '4', '1', '0') }, |
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{ CODEC_ID_YUV4, MKTAG('y', 'u', 'v', '4') }, |
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{ CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') }, |
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{ CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') }, |
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{ CODEC_ID_INDEO4, MKTAG('I', 'V', '4', '1') }, |
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{ CODEC_ID_INDEO5, MKTAG('I', 'V', '5', '0') }, |
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{ CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, |
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{ CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') }, |
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{ CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') }, |
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{ CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') }, |
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{ CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') }, |
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{ CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') }, |
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{ CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') }, |
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{ CODEC_ID_VP6F, MKTAG('F', 'L', 'V', '4') }, |
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{ CODEC_ID_VP8, MKTAG('V', 'P', '8', '0') }, |
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{ CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') }, |
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{ CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') }, |
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{ CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') }, |
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{ CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') }, |
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{ CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') }, |
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{ CODEC_ID_MIMIC, MKTAG('L', 'M', '2', '0') }, |
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{ CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') }, |
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{ CODEC_ID_MSRLE, MKTAG( 1 , 0 , 0 , 0 ) }, |
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{ CODEC_ID_MSRLE, MKTAG( 2 , 0 , 0 , 0 ) }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') }, |
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{ CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') }, |
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{ CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, |
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{ CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') }, |
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{ CODEC_ID_TRUEMOTION1, MKTAG('P', 'V', 'E', 'Z') }, |
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{ CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') }, |
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{ CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') }, |
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{ CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') }, |
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{ CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') }, |
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{ CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') }, |
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{ CODEC_ID_FLV1, MKTAG('S', '2', '6', '3') }, |
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{ CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') }, |
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{ CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, |
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{ CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') }, |
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{ CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') }, |
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{ CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') }, |
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{ CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') }, |
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{ CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') }, |
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{ CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') }, |
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{ CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') }, |
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{ CODEC_ID_WMV3IMAGE, MKTAG('W', 'M', 'V', 'P') }, |
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{ CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') }, |
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{ CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') }, |
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{ CODEC_ID_VC1IMAGE, MKTAG('W', 'V', 'P', '2') }, |
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{ CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') }, |
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{ CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') }, |
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{ CODEC_ID_WNV1, MKTAG('Y', 'U', 'V', '8') }, |
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{ CODEC_ID_AASC, MKTAG('A', 'A', 'S', '4') }, |
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{ CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') }, |
|
{ CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') }, |
|
{ CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') }, |
|
{ CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') }, |
|
{ CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') }, |
|
{ CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') }, |
|
{ CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') }, |
|
{ CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') }, |
|
{ CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') }, |
|
{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, |
|
{ CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') }, |
|
{ CODEC_ID_JPEG2000, MKTAG('L', 'J', '2', 'C') }, |
|
{ CODEC_ID_JPEG2000, MKTAG('L', 'J', '2', 'K') }, |
|
{ CODEC_ID_JPEG2000, MKTAG('I', 'P', 'J', '2') }, |
|
{ CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') }, |
|
{ CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, |
|
{ CODEC_ID_PNG, MKTAG('M', 'P', 'N', 'G') }, |
|
{ CODEC_ID_PNG, MKTAG('P', 'N', 'G', '1') }, |
|
{ CODEC_ID_CLJR, MKTAG('C', 'L', 'J', 'R') }, |
|
{ CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') }, |
|
{ CODEC_ID_RPZA, MKTAG('a', 'z', 'p', 'r') }, |
|
{ CODEC_ID_RPZA, MKTAG('R', 'P', 'Z', 'A') }, |
|
{ CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, |
|
{ CODEC_ID_SP5X, MKTAG('S', 'P', '5', '4') }, |
|
{ CODEC_ID_AURA, MKTAG('A', 'U', 'R', 'A') }, |
|
{ CODEC_ID_AURA2, MKTAG('A', 'U', 'R', '2') }, |
|
{ CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') }, |
|
{ CODEC_ID_KGV1, MKTAG('K', 'G', 'V', '1') }, |
|
{ CODEC_ID_LAGARITH, MKTAG('L', 'A', 'G', 'S') }, |
|
{ CODEC_ID_G2M, MKTAG('G', '2', 'M', '2') }, |
|
{ CODEC_ID_G2M, MKTAG('G', '2', 'M', '3') }, |
|
{ CODEC_ID_G2M, MKTAG('G', '2', 'M', '4') }, |
|
{ CODEC_ID_AMV, MKTAG('A', 'M', 'V', 'F') }, |
|
{ CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'R', 'A') }, |
|
{ CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'R', 'G') }, |
|
{ CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '0') }, |
|
{ CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '2') }, |
|
{ CODEC_ID_VBLE, MKTAG('V', 'B', 'L', 'E') }, |
|
{ CODEC_ID_ESCAPE130, MKTAG('E', '1', '3', '0') }, |
|
{ CODEC_ID_DXTORY, MKTAG('x', 't', 'o', 'r') }, |
|
{ CODEC_ID_ZEROCODEC, MKTAG('Z', 'E', 'C', 'O') }, |
|
{ CODEC_ID_Y41P, MKTAG('Y', '4', '1', 'P') }, |
|
{ CODEC_ID_FLIC, MKTAG('A', 'F', 'L', 'C') }, |
|
{ CODEC_ID_EXR, MKTAG('e', 'x', 'r', ' ') }, |
|
{ CODEC_ID_MSS1, MKTAG('M', 'S', 'S', '1') }, |
|
{ CODEC_ID_MSA1, MKTAG('M', 'S', 'A', '1') }, |
|
{ CODEC_ID_TSCC2, MKTAG('T', 'S', 'C', '2') }, |
|
{ CODEC_ID_MTS2, MKTAG('M', 'T', 'S', '2') }, |
|
{ CODEC_ID_CLLC, MKTAG('C', 'L', 'L', 'C') }, |
|
{ CODEC_ID_NONE, 0 } |
|
}; |
|
|
|
const AVCodecTag ff_codec_wav_tags[] = { |
|
{ CODEC_ID_PCM_S16LE, 0x0001 }, |
|
{ CODEC_ID_PCM_U8, 0x0001 }, /* must come after s16le in this list */ |
|
{ CODEC_ID_PCM_S24LE, 0x0001 }, |
|
{ CODEC_ID_PCM_S32LE, 0x0001 }, |
|
{ CODEC_ID_ADPCM_MS, 0x0002 }, |
|
{ CODEC_ID_PCM_F32LE, 0x0003 }, |
|
{ CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */ |
|
{ CODEC_ID_PCM_ALAW, 0x0006 }, |
|
{ CODEC_ID_PCM_MULAW, 0x0007 }, |
|
{ CODEC_ID_WMAVOICE, 0x000A }, |
|
{ CODEC_ID_ADPCM_IMA_WAV, 0x0011 }, |
|
{ CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */ |
|
{ CODEC_ID_ADPCM_YAMAHA, 0x0020 }, |
|
{ CODEC_ID_TRUESPEECH, 0x0022 }, |
|
{ CODEC_ID_GSM_MS, 0x0031 }, |
|
{ CODEC_ID_AMR_NB, 0x0038 }, /* rogue format number */ |
|
{ CODEC_ID_G723_1, 0x0042 }, |
|
{ CODEC_ID_ADPCM_G726, 0x0045 }, |
|
{ CODEC_ID_MP2, 0x0050 }, |
|
{ CODEC_ID_MP3, 0x0055 }, |
|
{ CODEC_ID_AMR_NB, 0x0057 }, |
|
{ CODEC_ID_AMR_WB, 0x0058 }, |
|
{ CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */ |
|
{ CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */ |
|
{ CODEC_ID_ADPCM_IMA_WAV, 0x0069 }, |
|
{ CODEC_ID_VOXWARE, 0x0075 }, |
|
{ CODEC_ID_AAC, 0x00ff }, |
|
{ CODEC_ID_SIPR, 0x0130 }, |
|
{ CODEC_ID_WMAV1, 0x0160 }, |
|
{ CODEC_ID_WMAV2, 0x0161 }, |
|
{ CODEC_ID_WMAPRO, 0x0162 }, |
|
{ CODEC_ID_WMALOSSLESS, 0x0163 }, |
|
{ CODEC_ID_ADPCM_CT, 0x0200 }, |
|
{ CODEC_ID_ATRAC3, 0x0270 }, |
|
{ CODEC_ID_ADPCM_G722, 0x028F }, |
|
{ CODEC_ID_IMC, 0x0401 }, |
|
{ CODEC_ID_IAC, 0x0402 }, |
|
{ CODEC_ID_GSM_MS, 0x1500 }, |
|
{ CODEC_ID_TRUESPEECH, 0x1501 }, |
|
{ CODEC_ID_AAC, 0x1600 }, /* ADTS AAC */ |
|
{ CODEC_ID_AAC_LATM, 0x1602 }, |
|
{ CODEC_ID_AC3, 0x2000 }, |
|
{ CODEC_ID_DTS, 0x2001 }, |
|
{ CODEC_ID_SONIC, 0x2048 }, |
|
{ CODEC_ID_SONIC_LS, 0x2048 }, |
|
{ CODEC_ID_PCM_MULAW, 0x6c75 }, |
|
{ CODEC_ID_AAC, 0x706d }, |
|
{ CODEC_ID_AAC, 0x4143 }, |
|
{ CODEC_ID_SPEEX, 0xA109 }, |
|
{ CODEC_ID_FLAC, 0xF1AC }, |
|
{ CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' }, |
|
{ CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id? |
|
|
|
/* FIXME: All of the IDs below are not 16 bit and thus illegal. */ |
|
// for NuppelVideo (nuv.c) |
|
{ CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') }, |
|
{ CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') }, |
|
{ CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') }, |
|
{ CODEC_ID_NONE, 0 }, |
|
}; |
|
|
|
const AVCodecGuid ff_codec_wav_guids[] = { |
|
{CODEC_ID_AC3, {0x2C,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA}}, |
|
{CODEC_ID_ATRAC3P, {0xBF,0xAA,0x23,0xE9,0x58,0xCB,0x71,0x44,0xA1,0x19,0xFF,0xFA,0x01,0xE4,0xCE,0x62}}, |
|
{CODEC_ID_EAC3, {0xAF,0x87,0xFB,0xA7,0x02,0x2D,0xFB,0x42,0xA4,0xD4,0x05,0xCD,0x93,0x84,0x3B,0xDD}}, |
|
{CODEC_ID_MP2, {0x2B,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA}}, |
|
{CODEC_ID_NONE} |
|
}; |
|
|
|
const AVMetadataConv ff_riff_info_conv[] = { |
|
{ "IART", "artist" }, |
|
{ "ICMT", "comment" }, |
|
{ "ICOP", "copyright" }, |
|
{ "ICRD", "date" }, |
|
{ "IGNR", "genre" }, |
|
{ "ILNG", "language" }, |
|
{ "INAM", "title" }, |
|
{ "IPRD", "album" }, |
|
{ "IPRT", "track" }, |
|
{ "ISFT", "encoder" }, |
|
{ "ISMP", "timecode" }, |
|
{ "ITCH", "encoded_by"}, |
|
{ 0 }, |
|
}; |
|
|
|
const char ff_riff_tags[][5] = { |
|
"IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI", |
|
"IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD", |
|
"IPRT", "ISBJ", "ISFT", "ISHP", "ISMP", "ISRC", "ISRF", "ITCH", |
|
{0} |
|
}; |
|
|
|
#if CONFIG_MUXERS |
|
int64_t ff_start_tag(AVIOContext *pb, const char *tag) |
|
{ |
|
ffio_wfourcc(pb, tag); |
|
avio_wl32(pb, 0); |
|
return avio_tell(pb); |
|
} |
|
|
|
void ff_end_tag(AVIOContext *pb, int64_t start) |
|
{ |
|
int64_t pos; |
|
|
|
pos = avio_tell(pb); |
|
avio_seek(pb, start - 4, SEEK_SET); |
|
avio_wl32(pb, (uint32_t)(pos - start)); |
|
avio_seek(pb, pos, SEEK_SET); |
|
} |
|
|
|
/* WAVEFORMATEX header */ |
|
/* returns the size or -1 on error */ |
|
int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc) |
|
{ |
|
int bps, blkalign, bytespersec, frame_size; |
|
int hdrsize = 18; |
|
int waveformatextensible; |
|
uint8_t temp[256]; |
|
uint8_t *riff_extradata= temp; |
|
uint8_t *riff_extradata_start= temp; |
|
|
|
if(!enc->codec_tag || enc->codec_tag > 0xffff) |
|
return -1; |
|
|
|
/* We use the known constant frame size for the codec if known, otherwise |
|
fallback to using AVCodecContext.frame_size, which is not as reliable |
|
for indicating packet duration */ |
|
frame_size = av_get_audio_frame_duration(enc, 0); |
|
if (!frame_size) |
|
frame_size = enc->frame_size; |
|
|
|
waveformatextensible = (enc->channels > 2 && enc->channel_layout) |
|
|| enc->sample_rate > 48000 |
|
|| av_get_bits_per_sample(enc->codec_id) > 16; |
|
|
|
if (waveformatextensible) { |
|
avio_wl16(pb, 0xfffe); |
|
} else { |
|
avio_wl16(pb, enc->codec_tag); |
|
} |
|
avio_wl16(pb, enc->channels); |
|
avio_wl32(pb, enc->sample_rate); |
|
if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS || enc->codec_id == CODEC_ID_G723_1) { |
|
bps = 0; |
|
} else { |
|
if (!(bps = av_get_bits_per_sample(enc->codec_id))) { |
|
if (enc->bits_per_coded_sample) |
|
bps = enc->bits_per_coded_sample; |
|
else |
|
bps = 16; // default to 16 |
|
} |
|
} |
|
if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){ |
|
av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps); |
|
} |
|
|
|
if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) { |
|
/* this is wrong, but it seems many demuxers do not work if this is set |
|
correctly */ |
|
blkalign = frame_size; |
|
//blkalign = 144 * enc->bit_rate/enc->sample_rate; |
|
} else if (enc->codec_id == CODEC_ID_AC3) { |
|
blkalign = 3840; //maximum bytes per frame |
|
} else if (enc->codec_id == CODEC_ID_G723_1) { |
|
blkalign = 24; |
|
} else if (enc->block_align != 0) { /* specified by the codec */ |
|
blkalign = enc->block_align; |
|
} else |
|
blkalign = bps * enc->channels / av_gcd(8, bps); |
|
if (enc->codec_id == CODEC_ID_PCM_U8 || |
|
enc->codec_id == CODEC_ID_PCM_S24LE || |
|
enc->codec_id == CODEC_ID_PCM_S32LE || |
|
enc->codec_id == CODEC_ID_PCM_F32LE || |
|
enc->codec_id == CODEC_ID_PCM_F64LE || |
|
enc->codec_id == CODEC_ID_PCM_S16LE) { |
|
bytespersec = enc->sample_rate * blkalign; |
|
} else if (enc->codec_id == CODEC_ID_G723_1) { |
|
bytespersec = 800; |
|
} else { |
|
bytespersec = enc->bit_rate / 8; |
|
} |
|
avio_wl32(pb, bytespersec); /* bytes per second */ |
|
avio_wl16(pb, blkalign); /* block align */ |
|
avio_wl16(pb, bps); /* bits per sample */ |
|
if (enc->codec_id == CODEC_ID_MP3) { |
|
hdrsize += 12; |
|
bytestream_put_le16(&riff_extradata, 1); /* wID */ |
|
bytestream_put_le32(&riff_extradata, 2); /* fdwFlags */ |
|
bytestream_put_le16(&riff_extradata, 1152); /* nBlockSize */ |
|
bytestream_put_le16(&riff_extradata, 1); /* nFramesPerBlock */ |
|
bytestream_put_le16(&riff_extradata, 1393); /* nCodecDelay */ |
|
} else if (enc->codec_id == CODEC_ID_MP2) { |
|
hdrsize += 22; |
|
bytestream_put_le16(&riff_extradata, 2); /* fwHeadLayer */ |
|
bytestream_put_le32(&riff_extradata, enc->bit_rate); /* dwHeadBitrate */ |
|
bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8); /* fwHeadMode */ |
|
bytestream_put_le16(&riff_extradata, 0); /* fwHeadModeExt */ |
|
bytestream_put_le16(&riff_extradata, 1); /* wHeadEmphasis */ |
|
bytestream_put_le16(&riff_extradata, 16); /* fwHeadFlags */ |
|
bytestream_put_le32(&riff_extradata, 0); /* dwPTSLow */ |
|
bytestream_put_le32(&riff_extradata, 0); /* dwPTSHigh */ |
|
} else if (enc->codec_id == CODEC_ID_G723_1) { |
|
hdrsize += 20; |
|
bytestream_put_le32(&riff_extradata, 0x9ace0002); /* extradata needed for msacm g723.1 codec */ |
|
bytestream_put_le32(&riff_extradata, 0xaea2f732); |
|
bytestream_put_le16(&riff_extradata, 0xacde); |
|
} else if (enc->codec_id == CODEC_ID_GSM_MS || enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) { |
|
hdrsize += 2; |
|
bytestream_put_le16(&riff_extradata, frame_size); /* wSamplesPerBlock */ |
|
} else if(enc->extradata_size){ |
|
riff_extradata_start= enc->extradata; |
|
riff_extradata= enc->extradata + enc->extradata_size; |
|
hdrsize += enc->extradata_size; |
|
} |
|
if(waveformatextensible) { /* write WAVEFORMATEXTENSIBLE extensions */ |
|
hdrsize += 22; |
|
avio_wl16(pb, riff_extradata - riff_extradata_start + 22); /* 22 is WAVEFORMATEXTENSIBLE size */ |
|
avio_wl16(pb, bps); /* ValidBitsPerSample || SamplesPerBlock || Reserved */ |
|
avio_wl32(pb, enc->channel_layout); /* dwChannelMask */ |
|
avio_wl32(pb, enc->codec_tag); /* GUID + next 3 */ |
|
avio_wl32(pb, 0x00100000); |
|
avio_wl32(pb, 0xAA000080); |
|
avio_wl32(pb, 0x719B3800); |
|
} else { |
|
avio_wl16(pb, riff_extradata - riff_extradata_start); /* cbSize */ |
|
} |
|
avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start); |
|
if(hdrsize&1){ |
|
hdrsize++; |
|
avio_w8(pb, 0); |
|
} |
|
|
|
return hdrsize; |
|
} |
|
|
|
/* BITMAPINFOHEADER header */ |
|
void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf) |
|
{ |
|
avio_wl32(pb, 40 + enc->extradata_size); /* size */ |
|
avio_wl32(pb, enc->width); |
|
//We always store RGB TopDown |
|
avio_wl32(pb, enc->codec_tag ? enc->height : -enc->height); |
|
avio_wl16(pb, 1); /* planes */ |
|
|
|
avio_wl16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */ |
|
/* compression type */ |
|
avio_wl32(pb, enc->codec_tag); |
|
avio_wl32(pb, (enc->width * enc->height * (enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24)+7) / 8); |
|
avio_wl32(pb, 0); |
|
avio_wl32(pb, 0); |
|
avio_wl32(pb, 0); |
|
avio_wl32(pb, 0); |
|
|
|
avio_write(pb, enc->extradata, enc->extradata_size); |
|
|
|
if (!for_asf && enc->extradata_size & 1) |
|
avio_w8(pb, 0); |
|
} |
|
#endif //CONFIG_MUXERS |
|
|
|
#if CONFIG_DEMUXERS |
|
/* We could be given one of the three possible structures here: |
|
* WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure |
|
* is an expansion of the previous one with the fields added |
|
* at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and |
|
* WAVEFORMATEX adds 'WORD cbSize' and basically makes itself |
|
* an openended structure. |
|
*/ |
|
int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size) |
|
{ |
|
int id; |
|
|
|
id = avio_rl16(pb); |
|
codec->codec_type = AVMEDIA_TYPE_AUDIO; |
|
codec->channels = avio_rl16(pb); |
|
codec->sample_rate = avio_rl32(pb); |
|
codec->bit_rate = avio_rl32(pb) * 8; |
|
codec->block_align = avio_rl16(pb); |
|
if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */ |
|
codec->bits_per_coded_sample = 8; |
|
}else |
|
codec->bits_per_coded_sample = avio_rl16(pb); |
|
if (id == 0xFFFE) { |
|
codec->codec_tag = 0; |
|
} else { |
|
codec->codec_tag = id; |
|
codec->codec_id = ff_wav_codec_get_id(id, codec->bits_per_coded_sample); |
|
} |
|
if (size >= 18) { /* We're obviously dealing with WAVEFORMATEX */ |
|
int cbSize = avio_rl16(pb); /* cbSize */ |
|
size -= 18; |
|
cbSize = FFMIN(size, cbSize); |
|
if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */ |
|
ff_asf_guid subformat; |
|
int bps = avio_rl16(pb); |
|
if (bps) |
|
codec->bits_per_coded_sample = bps; |
|
codec->channel_layout = avio_rl32(pb); /* dwChannelMask */ |
|
ff_get_guid(pb, &subformat); |
|
if (!memcmp(subformat + 4, (const uint8_t[]){FF_MEDIASUBTYPE_BASE_GUID}, 12)) { |
|
codec->codec_tag = AV_RL32(subformat); |
|
codec->codec_id = ff_wav_codec_get_id(codec->codec_tag, codec->bits_per_coded_sample); |
|
} else { |
|
codec->codec_id = ff_codec_guid_get_id(ff_codec_wav_guids, subformat); |
|
if (!codec->codec_id) |
|
av_log(codec, AV_LOG_WARNING, "unknown subformat:"FF_PRI_GUID"\n", FF_ARG_GUID(subformat)); |
|
} |
|
cbSize -= 22; |
|
size -= 22; |
|
} |
|
codec->extradata_size = cbSize; |
|
if (cbSize > 0) { |
|
av_free(codec->extradata); |
|
codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); |
|
if (!codec->extradata) |
|
return AVERROR(ENOMEM); |
|
avio_read(pb, codec->extradata, codec->extradata_size); |
|
size -= cbSize; |
|
} |
|
|
|
/* It is possible for the chunk to contain garbage at the end */ |
|
if (size > 0) |
|
avio_skip(pb, size); |
|
} |
|
if (codec->codec_id == CODEC_ID_AAC_LATM) { |
|
/* channels and sample_rate values are those prior to applying SBR and/or PS */ |
|
codec->channels = 0; |
|
codec->sample_rate = 0; |
|
} |
|
/* override bits_per_coded_sample for G.726 */ |
|
if (codec->codec_id == CODEC_ID_ADPCM_G726) |
|
codec->bits_per_coded_sample = codec->bit_rate / codec->sample_rate; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps) |
|
{ |
|
enum CodecID id; |
|
id = ff_codec_get_id(ff_codec_wav_tags, tag); |
|
if (id <= 0) |
|
return id; |
|
/* handle specific u8 codec */ |
|
if (id == CODEC_ID_PCM_S16LE && bps == 8) |
|
id = CODEC_ID_PCM_U8; |
|
if (id == CODEC_ID_PCM_S16LE && bps == 24) |
|
id = CODEC_ID_PCM_S24LE; |
|
if (id == CODEC_ID_PCM_S16LE && bps == 32) |
|
id = CODEC_ID_PCM_S32LE; |
|
if (id == CODEC_ID_PCM_F32LE && bps == 64) |
|
id = CODEC_ID_PCM_F64LE; |
|
if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8) |
|
id = CODEC_ID_PCM_ZORK; |
|
return id; |
|
} |
|
|
|
int ff_get_bmp_header(AVIOContext *pb, AVStream *st, unsigned *esize) |
|
{ |
|
int tag1; |
|
if(esize) *esize = avio_rl32(pb); |
|
else avio_rl32(pb); |
|
st->codec->width = avio_rl32(pb); |
|
st->codec->height = (int32_t)avio_rl32(pb); |
|
avio_rl16(pb); /* planes */ |
|
st->codec->bits_per_coded_sample= avio_rl16(pb); /* depth */ |
|
tag1 = avio_rl32(pb); |
|
avio_rl32(pb); /* ImageSize */ |
|
avio_rl32(pb); /* XPelsPerMeter */ |
|
avio_rl32(pb); /* YPelsPerMeter */ |
|
avio_rl32(pb); /* ClrUsed */ |
|
avio_rl32(pb); /* ClrImportant */ |
|
return tag1; |
|
} |
|
#endif // CONFIG_DEMUXERS |
|
|
|
void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale) |
|
{ |
|
int gcd; |
|
int audio_frame_size; |
|
|
|
/* We use the known constant frame size for the codec if known, otherwise |
|
fallback to using AVCodecContext.frame_size, which is not as reliable |
|
for indicating packet duration */ |
|
audio_frame_size = av_get_audio_frame_duration(stream, 0); |
|
if (!audio_frame_size) |
|
audio_frame_size = stream->frame_size; |
|
|
|
*au_ssize= stream->block_align; |
|
if (audio_frame_size && stream->sample_rate) { |
|
*au_scale = audio_frame_size; |
|
*au_rate= stream->sample_rate; |
|
}else if(stream->codec_type == AVMEDIA_TYPE_VIDEO || |
|
stream->codec_type == AVMEDIA_TYPE_DATA || |
|
stream->codec_type == AVMEDIA_TYPE_SUBTITLE){ |
|
*au_scale= stream->time_base.num; |
|
*au_rate = stream->time_base.den; |
|
}else{ |
|
*au_scale= stream->block_align ? stream->block_align*8 : 8; |
|
*au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate; |
|
} |
|
gcd= av_gcd(*au_scale, *au_rate); |
|
*au_scale /= gcd; |
|
*au_rate /= gcd; |
|
} |
|
|
|
void ff_get_guid(AVIOContext *s, ff_asf_guid *g) |
|
{ |
|
av_assert0(sizeof(*g) == 16); //compiler will optimize this out |
|
if (avio_read(s, *g, sizeof(*g)) < (int)sizeof(*g)) |
|
memset(*g, 0, sizeof(*g)); |
|
} |
|
|
|
enum CodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid) |
|
{ |
|
int i; |
|
for (i = 0; guids[i].id != CODEC_ID_NONE; i++) { |
|
if (!ff_guidcmp(guids[i].guid, guid)) |
|
return guids[i].id; |
|
} |
|
return CODEC_ID_NONE; |
|
} |
|
|
|
int ff_read_riff_info(AVFormatContext *s, int64_t size) |
|
{ |
|
int64_t start, end, cur; |
|
AVIOContext *pb = s->pb; |
|
|
|
start = avio_tell(pb); |
|
end = start + size; |
|
|
|
while ((cur = avio_tell(pb)) >= 0 && cur <= end - 8 /* = tag + size */) { |
|
uint32_t chunk_code; |
|
int64_t chunk_size; |
|
char key[5] = {0}; |
|
char *value; |
|
|
|
chunk_code = avio_rl32(pb); |
|
chunk_size = avio_rl32(pb); |
|
if (chunk_size > end || end - chunk_size < cur || chunk_size == UINT_MAX) { |
|
av_log(s, AV_LOG_ERROR, "too big INFO subchunk\n"); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
chunk_size += (chunk_size & 1); |
|
|
|
value = av_malloc(chunk_size + 1); |
|
if (!value) { |
|
av_log(s, AV_LOG_ERROR, "out of memory, unable to read INFO tag\n"); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
AV_WL32(key, chunk_code); |
|
|
|
if (avio_read(pb, value, chunk_size) != chunk_size) { |
|
av_freep(&value); |
|
av_log(s, AV_LOG_ERROR, "premature end of file while reading INFO tag\n"); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
value[chunk_size] = 0; |
|
|
|
av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL); |
|
} |
|
|
|
return 0; |
|
}
|
|
|