| 9d9f4119 |
/*
* RIFF codec tags |
| 406792e7 |
* Copyright (c) 2000 Fabrice Bellard |
| 9d9f4119 |
* |
| b78e7197 |
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or |
| 9d9f4119 |
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either |
| b78e7197 |
* version 2.1 of the License, or (at your option) any later version. |
| 9d9f4119 |
* |
| b78e7197 |
* FFmpeg is distributed in the hope that it will be useful, |
| 9d9f4119 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public |
| b78e7197 |
* License along with FFmpeg; if not, write to the Free Software |
| 9d9f4119 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
|
| 245976da |
#include "libavcodec/avcodec.h" |
| 9d9f4119 |
#include "avformat.h" |
| 0abdb293 |
#include "avio_internal.h" |
| 9d9f4119 |
#include "riff.h" |
| 6e9f56c1 |
#include "libavcodec/bytestream.h" |
| 9d9f4119 |
/* Note: when encoding, the first matching tag is used, so order is
important if multiple tags possible for a given codec. */ |
| 1a40491e |
const AVCodecTag ff_codec_bmp_tags[] = { |
| ab0b2e55 |
{ CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
{ CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
{ CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
{ CODEC_ID_H264, MKTAG('x', '2', '6', '4') },
{ CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, |
| 4f038fdc |
{ CODEC_ID_H264, MKTAG('D', 'A', 'V', 'C') }, |
| ab0b2e55 |
{ CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') },
{ CODEC_ID_H263, MKTAG('H', '2', '6', '3') }, |
| 26e8d342 |
{ CODEC_ID_H263, MKTAG('X', '2', '6', '3') }, |
| d7c6552c |
{ CODEC_ID_H263, MKTAG('T', '2', '6', '3') }, |
| 26e8d342 |
{ CODEC_ID_H263, MKTAG('L', '2', '6', '3') }, |
| 62d6f73e |
{ CODEC_ID_H263, MKTAG('V', 'X', '1', 'K') }, |
| 5aef8462 |
{ CODEC_ID_H263, MKTAG('Z', 'y', 'G', 'o') }, |
| a8117a62 |
{ CODEC_ID_H263, MKTAG('M', '2', '6', '3') }, |
| ab0b2e55 |
{ CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
{ CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
{ CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
{ CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
{ CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
{ CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4') },
{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') },
{ CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0') },
{ CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
{ CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
{ CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') }, |
| 36b0782e |
{ CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 0 ) }, /* some broken avi use this */ |
| ab0b2e55 |
{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
{ CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
{ CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
{ CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
{ CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') },
{ CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') }, |
| 1b46683c |
{ CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, |
| f0feb4d7 |
{ CODEC_ID_MPEG4, MKTAG('W', 'A', 'W', 'V') }, /* WaWv MPEG-4 Video Codec */ |
| 26ae363e |
{ CODEC_ID_MPEG4, MKTAG('F', 'F', 'D', 'S') }, |
| 4a49a5fd |
{ CODEC_ID_MPEG4, MKTAG('F', 'V', 'F', 'W') }, |
| 26e8d342 |
{ CODEC_ID_MPEG4, MKTAG('D', 'C', 'O', 'D') },
{ CODEC_ID_MPEG4, MKTAG('M', 'V', 'X', 'M') },
{ CODEC_ID_MPEG4, MKTAG('P', 'M', '4', 'V') },
{ CODEC_ID_MPEG4, MKTAG('S', 'M', 'P', '4') },
{ CODEC_ID_MPEG4, MKTAG('D', 'X', 'G', 'M') },
{ CODEC_ID_MPEG4, MKTAG('V', 'I', 'D', 'M') },
{ CODEC_ID_MPEG4, MKTAG('M', '4', 'T', '3') }, |
| b8cf645b |
{ CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'X') }, |
| 26e8d342 |
{ CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') }, /* flipped video */ |
| 62d6f73e |
{ CODEC_ID_MPEG4, MKTAG('D', 'M', 'K', '2') }, |
| 41b0534a |
{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'G', 'I') }, |
| 4a49a5fd |
{ CODEC_ID_MPEG4, MKTAG('I', 'N', 'M', 'C') }, |
| 5823e4b8 |
{ CODEC_ID_MPEG4, MKTAG('E', 'P', 'H', 'V') }, /* Ephv MPEG-4 */ |
| 76af2edc |
{ CODEC_ID_MPEG4, MKTAG('E', 'M', '4', 'A') }, |
| 52837498 |
{ CODEC_ID_MPEG4, MKTAG('M', '4', 'C', 'C') }, /* Divio MPEG-4 */ |
| 3596f4e0 |
{ CODEC_ID_MPEG4, MKTAG('S', 'N', '4', '0') }, |
| 6667d5a5 |
{ CODEC_ID_MPEG4, MKTAG('V', 'S', 'P', 'X') }, |
| 5bc3fc21 |
{ CODEC_ID_MPEG4, MKTAG('U', 'L', 'D', 'X') }, |
| 86d58bcf |
{ CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'V') }, |
| 74c853b6 |
{ CODEC_ID_MPEG4, MKTAG('S', 'I', 'P', 'P') }, /* Samsung SHR-6040 */ |
| 69cf1824 |
{ CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'X') }, |
| ab0b2e55 |
{ CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, |
| 2d91366c |
{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') }, |
| ab0b2e55 |
{ CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') }, |
| 4a49a5fd |
{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'V', 'X', '3') }, |
| ab0b2e55 |
{ CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
{ CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
{ CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
{ CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
{ CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
{ CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') }, |
| 26e8d342 |
{ CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', '4', '1') }, |
| ab0b2e55 |
{ CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
{ CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') }, |
| f9928b7e |
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') }, |
| ab0b2e55 |
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') },
{ CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */ |
| 13b47b40 |
{ CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', 'H') }, /* Canopus DV */ |
| 07f45bc9 |
{ CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', '5') }, /* Canopus DV */ |
| 26e8d342 |
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, |
| 4bae2251 |
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 's') }, |
| c20a305b |
{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') }, |
| ab0b2e55 |
{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
{ CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') },
{ CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') }, |
| 26e8d342 |
{ CODEC_ID_MPEG2VIDEO, MKTAG('P', 'I', 'M', '2') }, |
| ab0b2e55 |
{ CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') }, |
| 36b0782e |
{ CODEC_ID_MPEG1VIDEO, MKTAG( 1 , 0 , 0 , 16) },
{ CODEC_ID_MPEG2VIDEO, MKTAG( 2 , 0 , 0 , 16) }, |
| bc7ea1e5 |
{ CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 16) }, |
| ab0b2e55 |
{ CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
{ CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') }, |
| 6cffaea8 |
{ CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */ |
| 483aad71 |
{ CODEC_ID_MPEG2VIDEO, MKTAG('s', 'l', 'i', 'f') }, |
| f63e5a74 |
{ CODEC_ID_MPEG2VIDEO, MKTAG('E', 'M', '2', 'V') }, |
| 77d3f1f7 |
{ CODEC_ID_MPEG2VIDEO, MKTAG('M', '7', '0', '1') }, /* Matrox MPEG2 intra-only */ |
| a05219d8 |
{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', 'v') }, |
| ab0b2e55 |
{ CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
{ CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') }, |
| 26e8d342 |
{ CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, |
| 94ec3aca |
{ CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, |
| ab0b2e55 |
{ CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
{ CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
{ CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */ |
| f10d3d34 |
{ CODEC_ID_JPEGLS, MKTAG('M', 'J', 'P', 'G') }, |
| ab0b2e55 |
{ CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
{ CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') },
{ CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') },
{ CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, |
| 65fec2d9 |
{ CODEC_ID_MJPEG, MKTAG('A', 'C', 'D', 'V') }, |
| a9cf309b |
{ CODEC_ID_MJPEG, MKTAG('Q', 'I', 'V', 'G') }, |
| ed0879ed |
{ CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */ |
| 54f8abde |
{ CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */ |
| 54089ecd |
{ CODEC_ID_MJPEG, MKTAG('I', 'J', 'L', 'V') }, /* Intel JPEG Library Video Codec */ |
| dd9d5a1e |
{ CODEC_ID_MJPEG, MKTAG('M', 'V', 'J', 'P') }, /* Midvid JPEG Video Codec */ |
| 4b86926b |
{ CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '1') },
{ CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '2') }, |
| ab176fdf |
{ CODEC_ID_MJPEG, MKTAG('M', 'T', 'S', 'J') }, |
| 418a287c |
{ CODEC_ID_MJPEG, MKTAG('Z', 'J', 'P', 'G') }, /* Paradigm Matrix M-JPEG Codec */ |
| 03546a9a |
{ CODEC_ID_MJPEG, MKTAG('M', 'M', 'J', 'P') }, |
| ab0b2e55 |
{ CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
{ CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
{ CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') }, |
| 36b0782e |
{ CODEC_ID_RAWVIDEO, MKTAG( 0 , 0 , 0 , 0 ) }, |
| fc3fc029 |
{ CODEC_ID_RAWVIDEO, MKTAG( 3 , 0 , 0 , 0 ) }, |
| ab0b2e55 |
{ CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') }, |
| 9853bbb2 |
{ CODEC_ID_RAWVIDEO, MKTAG('V', '4', '2', '2') },
{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'N', 'V') },
{ CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'V') },
{ CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'Y') },
{ CODEC_ID_RAWVIDEO, MKTAG('u', 'y', 'v', '1') },
{ CODEC_ID_RAWVIDEO, MKTAG('2', 'V', 'u', '1') }, |
| 13547dd1 |
{ CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, |
| 3d305fd0 |
{ CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, |
| 9853bbb2 |
{ CODEC_ID_RAWVIDEO, MKTAG('P', '4', '2', '2') }, |
| ab0b2e55 |
{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') },
{ CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') }, |
| e47ca4f7 |
{ CODEC_ID_RAWVIDEO, MKTAG('V', 'Y', 'U', 'Y') }, |
| ab0b2e55 |
{ CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
{ CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') },
{ CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') }, |
| 71b0654c |
{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') }, |
| 8be7ac98 |
{ CODEC_ID_RAWVIDEO, MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */ |
| b43f432c |
{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', '1') }, |
| 73762de1 |
{ CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '1', '2') },
{ CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '2', '1') }, |
| 781cf5fd |
{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', 'B') },
{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', 'B') },
{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'V', '9') },
{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') }, |
| 3e1c59eb |
{ CODEC_ID_RAWVIDEO, MKTAG('a', 'u', 'v', '2') }, |
| d8b35b85 |
{ CODEC_ID_FRWU, MKTAG('F', 'R', 'W', 'U') }, |
| 43836928 |
{ CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') }, |
| 4aaab0a3 |
{ CODEC_ID_R210, MKTAG('r', '2', '1', '0') }, |
| 9c4e266c |
{ CODEC_ID_V210, MKTAG('v', '2', '1', '0') }, |
| ab0b2e55 |
{ CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
{ CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
{ CODEC_ID_INDEO4, MKTAG('I', 'V', '4', '1') },
{ CODEC_ID_INDEO5, MKTAG('I', 'V', '5', '0') },
{ CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
{ CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
{ CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
{ CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
{ CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
{ CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') }, |
| 337104ac |
{ CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') }, |
| 03cb8458 |
{ CODEC_ID_VP6F, MKTAG('F', 'L', 'V', '4') }, |
| 6c7c6293 |
{ CODEC_ID_VP8, MKTAG('V', 'P', '8', '0') }, |
| ab0b2e55 |
{ CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
{ CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
{ CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
{ CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
{ CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') }, |
| e2260faa |
{ CODEC_ID_MIMIC, MKTAG('L', 'M', '2', '0') }, |
| ab0b2e55 |
{ CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') }, |
| 36b0782e |
{ CODEC_ID_MSRLE, MKTAG( 1 , 0 , 0 , 0 ) }, |
| b30cb420 |
{ CODEC_ID_MSRLE, MKTAG( 2 , 0 , 0 , 0 ) }, |
| ab0b2e55 |
{ CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
{ CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
{ CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
{ CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
{ CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
{ CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
{ CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
{ CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') }, |
| bf23f6dc |
{ CODEC_ID_TRUEMOTION1, MKTAG('P', 'V', 'E', 'Z') }, |
| ab0b2e55 |
{ CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
{ CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
{ CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
{ CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
{ CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
{ CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') },
{ CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
{ CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
{ CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
{ CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
{ CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
{ CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
{ CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
{ CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') }, |
| cba322d7 |
{ CODEC_ID_WMV3, MKTAG('W', 'M', 'V', 'P') }, |
| ab0b2e55 |
{ CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') },
{ CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') }, |
| 768c5251 |
{ CODEC_ID_VC1, MKTAG('W', 'V', 'P', '2') }, |
| ab0b2e55 |
{ CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
{ CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
{ 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') }, |
| 83654c7b |
{ CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, |
| ab0b2e55 |
{ CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') },
{ CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') },
{ CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, |
| f86cd761 |
{ CODEC_ID_PNG, MKTAG('M', 'P', 'N', 'G') }, |
| 0dccbba0 |
{ CODEC_ID_PNG, MKTAG('P', 'N', 'G', '1') }, |
| ab0b2e55 |
{ CODEC_ID_CLJR, MKTAG('c', 'l', 'j', 'r') }, |
| eb64714c |
{ CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') }, |
| 65fec2d9 |
{ CODEC_ID_RPZA, MKTAG('a', 'z', 'p', 'r') }, |
| c6340f86 |
{ CODEC_ID_RPZA, MKTAG('R', 'P', 'Z', 'A') },
{ CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, |
| e80c73b3 |
{ CODEC_ID_SP5X, MKTAG('S', 'P', '5', '4') }, |
| c21fbefb |
{ CODEC_ID_AURA, MKTAG('A', 'U', 'R', 'A') },
{ CODEC_ID_AURA2, MKTAG('A', 'U', 'R', '2') }, |
| 94d3d6a4 |
{ CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') }, |
| bf354122 |
{ CODEC_ID_KGV1, MKTAG('K', 'G', 'V', '1') }, |
| d267b339 |
{ CODEC_ID_LAGARITH, MKTAG('L', 'A', 'G', 'S') }, |
| ab0b2e55 |
{ CODEC_ID_NONE, 0 } |
| 9d9f4119 |
};
|
| 1a40491e |
const AVCodecTag ff_codec_wav_tags[] = { |
| 8af9090f |
{ 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 }, |
| 57406d8e |
{ CODEC_ID_PCM_F32LE, 0x0003 },
{ CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */ |
| 8af9090f |
{ CODEC_ID_PCM_ALAW, 0x0006 },
{ CODEC_ID_PCM_MULAW, 0x0007 },
{ CODEC_ID_WMAVOICE, 0x000A },
{ CODEC_ID_ADPCM_IMA_WAV, 0x0011 }, |
| 4e0e6888 |
{ CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */ |
| 8af9090f |
{ CODEC_ID_ADPCM_YAMAHA, 0x0020 },
{ CODEC_ID_TRUESPEECH, 0x0022 },
{ CODEC_ID_GSM_MS, 0x0031 },
{ CODEC_ID_ADPCM_G726, 0x0045 },
{ CODEC_ID_MP2, 0x0050 },
{ CODEC_ID_MP3, 0x0055 }, |
| c26436ec |
{ CODEC_ID_AMR_NB, 0x0057 },
{ CODEC_ID_AMR_WB, 0x0058 }, |
| 8af9090f |
{ CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */
{ CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */ |
| 4becee23 |
{ CODEC_ID_ADPCM_IMA_WAV, 0x0069 }, |
| 8af9090f |
{ CODEC_ID_VOXWARE, 0x0075 },
{ CODEC_ID_AAC, 0x00ff }, |
| faeedbbb |
{ CODEC_ID_SIPR, 0x0130 }, |
| 8af9090f |
{ CODEC_ID_WMAV1, 0x0160 },
{ CODEC_ID_WMAV2, 0x0161 },
{ CODEC_ID_WMAPRO, 0x0162 }, |
| 800b9c24 |
{ CODEC_ID_WMALOSSLESS, 0x0163 }, |
| 8af9090f |
{ CODEC_ID_ADPCM_CT, 0x0200 },
{ CODEC_ID_ATRAC3, 0x0270 }, |
| e8ffb2fa |
{ CODEC_ID_ADPCM_G722, 0x028F }, |
| 8af9090f |
{ CODEC_ID_IMC, 0x0401 }, |
| 4bf2b9e8 |
{ CODEC_ID_GSM_MS, 0x1500 },
{ CODEC_ID_TRUESPEECH, 0x1501 }, |
| d34ca1cf |
{ CODEC_ID_AAC, 0x1600 }, /* ADTS AAC */ |
| 50d83b20 |
{ CODEC_ID_AAC_LATM, 0x1602 }, |
| 8af9090f |
{ CODEC_ID_AC3, 0x2000 },
{ CODEC_ID_DTS, 0x2001 },
{ CODEC_ID_SONIC, 0x2048 },
{ CODEC_ID_SONIC_LS, 0x2048 }, |
| 8e6e9bac |
{ CODEC_ID_PCM_MULAW, 0x6c75 }, |
| 8af9090f |
{ CODEC_ID_AAC, 0x706d }, |
| 6cffaea8 |
{ CODEC_ID_AAC, 0x4143 }, |
| 8af9090f |
{ 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? |
| 6ae177aa |
/* FIXME: All of the IDs below are not 16 bit and thus illegal. */ |
| 9d9f4119 |
// for NuppelVideo (nuv.c)
{ CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') }, |
| 8af9090f |
{ CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') },
{ CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') }, |
| bc2d2a07 |
{ CODEC_ID_NONE, 0 }, |
| 9d9f4119 |
};
|
| 36ffabc4 |
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}}, |
| de174d0d |
{CODEC_ID_ATRAC3P, {0xBF,0xAA,0x23,0xE9,0x58,0xCB,0x71,0x44,0xA1,0x19,0xFF,0xFA,0x01,0xE4,0xCE,0x62}}, |
| 36ffabc4 |
{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}
};
|
| b250f9c6 |
#if CONFIG_MUXERS |
| ae628ec1 |
int64_t ff_start_tag(AVIOContext *pb, const char *tag) |
| 9d9f4119 |
{ |
| 0abdb293 |
ffio_wfourcc(pb, tag); |
| 77eb5504 |
avio_wl32(pb, 0); |
| a2704c97 |
return avio_tell(pb); |
| 9d9f4119 |
}
|
| ae628ec1 |
void ff_end_tag(AVIOContext *pb, int64_t start) |
| 9d9f4119 |
{ |
| bc5c918e |
int64_t pos; |
| 9d9f4119 |
|
| a2704c97 |
pos = avio_tell(pb); |
| 6b4aa5da |
avio_seek(pb, start - 4, SEEK_SET); |
| 77eb5504 |
avio_wl32(pb, (uint32_t)(pos - start)); |
| 6b4aa5da |
avio_seek(pb, pos, SEEK_SET); |
| 9d9f4119 |
}
/* WAVEFORMATEX header */
/* returns the size or -1 on error */ |
| ae628ec1 |
int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc) |
| 9d9f4119 |
{
int bps, blkalign, bytespersec;
int hdrsize = 18; |
| 6e9f56c1 |
int waveformatextensible;
uint8_t temp[256];
uint8_t *riff_extradata= temp;
uint8_t *riff_extradata_start= temp; |
| 9d9f4119 |
if(!enc->codec_tag || enc->codec_tag > 0xffff)
return -1; |
| 2c2a167c |
waveformatextensible = (enc->channels > 2 && enc->channel_layout)
|| enc->sample_rate > 48000
|| av_get_bits_per_sample(enc->codec_id) > 16; |
| 9d9f4119 |
|
| 6e9f56c1 |
if (waveformatextensible) { |
| 77eb5504 |
avio_wl16(pb, 0xfffe); |
| 6e9f56c1 |
} else { |
| 77eb5504 |
avio_wl16(pb, enc->codec_tag); |
| 6e9f56c1 |
} |
| 77eb5504 |
avio_wl16(pb, enc->channels);
avio_wl32(pb, enc->sample_rate); |
| 235a51ad |
if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) { |
| 9d9f4119 |
bps = 0; |
| 9df9b810 |
} else if (enc->codec_id == CODEC_ID_ADPCM_G726) { |
| 9d9f4119 |
bps = 4;
} else { |
| 24b8aa84 |
if (!(bps = av_get_bits_per_sample(enc->codec_id)))
bps = 16; // default to 16 |
| 9d9f4119 |
} |
| dd1c8f3e |
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); |
| 9376710d |
} |
| 9d9f4119 |
|
| 504530bf |
if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) { |
| 755bfeab |
blkalign = enc->frame_size; //this is wrong, but it seems many demuxers do not work if this is set correctly |
| 9d9f4119 |
//blkalign = 144 * enc->bit_rate/enc->sample_rate; |
| 504530bf |
} else if (enc->codec_id == CODEC_ID_AC3) {
blkalign = 3840; //maximum bytes per frame |
| 9d9f4119 |
} else if (enc->codec_id == CODEC_ID_ADPCM_G726) { //
blkalign = 1;
} else if (enc->block_align != 0) { /* specified by the codec */
blkalign = enc->block_align;
} else
blkalign = enc->channels*bps >> 3;
if (enc->codec_id == CODEC_ID_PCM_U8 ||
enc->codec_id == CODEC_ID_PCM_S24LE ||
enc->codec_id == CODEC_ID_PCM_S32LE || |
| 57406d8e |
enc->codec_id == CODEC_ID_PCM_F32LE ||
enc->codec_id == CODEC_ID_PCM_F64LE || |
| 9d9f4119 |
enc->codec_id == CODEC_ID_PCM_S16LE) {
bytespersec = enc->sample_rate * blkalign;
} else {
bytespersec = enc->bit_rate / 8;
} |
| 77eb5504 |
avio_wl32(pb, bytespersec); /* bytes per second */
avio_wl16(pb, blkalign); /* block align */
avio_wl16(pb, bps); /* bits per sample */ |
| 9d9f4119 |
if (enc->codec_id == CODEC_ID_MP3) {
hdrsize += 12; |
| 6e9f56c1 |
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 */ |
| 9d9f4119 |
} else if (enc->codec_id == CODEC_ID_MP2) {
hdrsize += 22; |
| 6e9f56c1 |
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 */ |
| c81604f8 |
} else if (enc->codec_id == CODEC_ID_GSM_MS || enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) { |
| 9d9f4119 |
hdrsize += 2; |
| 6e9f56c1 |
bytestream_put_le16(&riff_extradata, enc->frame_size); /* wSamplesPerBlock */ |
| 9d9f4119 |
} else if(enc->extradata_size){ |
| 6e9f56c1 |
riff_extradata_start= enc->extradata;
riff_extradata= enc->extradata + enc->extradata_size; |
| 9d9f4119 |
hdrsize += enc->extradata_size; |
| 6e9f56c1 |
} else if (!waveformatextensible){
hdrsize -= 2;
}
if(waveformatextensible) { /* write WAVEFORMATEXTENSIBLE extensions */
hdrsize += 22; |
| 77eb5504 |
avio_wl16(pb, riff_extradata - riff_extradata_start + 22); /* 22 is WAVEFORMATEXTENSIBLE size */ |
| 7deaa2b8 |
avio_wl16(pb, bps); /* ValidBitsPerSample || SamplesPerBlock || Reserved */ |
| 77eb5504 |
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); |
| 6e9f56c1 |
} else if(riff_extradata - riff_extradata_start) { |
| 77eb5504 |
avio_wl16(pb, riff_extradata - riff_extradata_start); |
| 6e9f56c1 |
} |
| 77eb5504 |
avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start); |
| 4bce3ba4 |
if(hdrsize&1){
hdrsize++; |
| 77eb5504 |
avio_w8(pb, 0); |
| 4bce3ba4 |
} |
| 9d9f4119 |
return hdrsize;
}
/* BITMAPINFOHEADER header */ |
| ae628ec1 |
void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf) |
| 9d9f4119 |
{ |
| 77eb5504 |
avio_wl32(pb, 40 + enc->extradata_size); /* size */
avio_wl32(pb, enc->width); |
| 31f2616d |
//We always store RGB TopDown |
| 77eb5504 |
avio_wl32(pb, enc->codec_tag ? enc->height : -enc->height);
avio_wl16(pb, 1); /* planes */ |
| 9d9f4119 |
|
| 77eb5504 |
avio_wl16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */ |
| 9d9f4119 |
/* compression type */ |
| 77eb5504 |
avio_wl32(pb, enc->codec_tag);
avio_wl32(pb, enc->width * enc->height * 3);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, 0); |
| 9d9f4119 |
|
| 77eb5504 |
avio_write(pb, enc->extradata, enc->extradata_size); |
| 9d9f4119 |
|
| 63100f58 |
if (!for_asf && enc->extradata_size & 1) |
| 77eb5504 |
avio_w8(pb, 0); |
| 9d9f4119 |
}
#endif //CONFIG_MUXERS
|
| b250f9c6 |
#if CONFIG_DEMUXERS |
| 9d9f4119 |
/* 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.
*/ |
| ca402f32 |
int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size) |
| 9d9f4119 |
{
int id;
|
| b7effd4e |
id = avio_rl16(pb); |
| 72415b2a |
codec->codec_type = AVMEDIA_TYPE_AUDIO; |
| b7effd4e |
codec->channels = avio_rl16(pb);
codec->sample_rate = avio_rl32(pb);
codec->bit_rate = avio_rl32(pb) * 8;
codec->block_align = avio_rl16(pb); |
| 9d9f4119 |
if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */ |
| dd1c8f3e |
codec->bits_per_coded_sample = 8; |
| 9d9f4119 |
}else |
| b7effd4e |
codec->bits_per_coded_sample = avio_rl16(pb); |
| aa9380c8 |
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);
} |
| 72fd40bd |
if (size >= 18) { /* We're obviously dealing with WAVEFORMATEX */ |
| b7effd4e |
int cbSize = avio_rl16(pb); /* cbSize */ |
| 72fd40bd |
size -= 18;
cbSize = FFMIN(size, cbSize);
if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */ |
| aa9380c8 |
ff_asf_guid subformat; |
| b7effd4e |
codec->bits_per_coded_sample = avio_rl16(pb);
codec->channel_layout = avio_rl32(pb); /* dwChannelMask */ |
| aa9380c8 |
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));
} |
| 72fd40bd |
cbSize -= 22;
size -= 22;
}
codec->extradata_size = cbSize;
if (cbSize > 0) { |
| ed8a5006 |
av_free(codec->extradata); |
| 9d9f4119 |
codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); |
| ca402f32 |
if (!codec->extradata)
return AVERROR(ENOMEM); |
| b7effd4e |
avio_read(pb, codec->extradata, codec->extradata_size); |
| 72fd40bd |
size -= cbSize;
} |
| 9d9f4119 |
/* It is possible for the chunk to contain garbage at the end */ |
| 72fd40bd |
if (size > 0) |
| 45a8a02a |
avio_skip(pb, size); |
| 9d9f4119 |
} |
| 50d83b20 |
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;
} |
| ca402f32 |
return 0; |
| 9d9f4119 |
}
|
| 1a40491e |
enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps) |
| 9d9f4119 |
{ |
| 9f2ace74 |
enum CodecID id; |
| 1a40491e |
id = ff_codec_get_id(ff_codec_wav_tags, tag); |
| 9d9f4119 |
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; |
| 57406d8e |
if (id == CODEC_ID_PCM_F32LE && bps == 64)
id = CODEC_ID_PCM_F64LE; |
| a11c2a2c |
if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8)
id = CODEC_ID_PCM_ZORK; |
| 9d9f4119 |
return id;
} |
| 773d892a |
|
| ae628ec1 |
int ff_get_bmp_header(AVIOContext *pb, AVStream *st) |
| 773d892a |
{
int tag1; |
| b7effd4e |
avio_rl32(pb); /* size */
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 */ |
| 773d892a |
return tag1;
} |
| 9d9f4119 |
#endif // CONFIG_DEMUXERS
void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
{
int gcd;
*au_ssize= stream->block_align;
if(stream->frame_size && stream->sample_rate){
*au_scale=stream->frame_size;
*au_rate= stream->sample_rate; |
| 72415b2a |
}else if(stream->codec_type == AVMEDIA_TYPE_VIDEO || |
| e3b540b4 |
stream->codec_type == AVMEDIA_TYPE_DATA || |
| 72415b2a |
stream->codec_type == AVMEDIA_TYPE_SUBTITLE){ |
| 9d9f4119 |
*au_scale= stream->time_base.num;
*au_rate = stream->time_base.den;
}else{
*au_scale= stream->block_align ? stream->block_align*8 : 8; |
| a7805e29 |
*au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate; |
| 9d9f4119 |
} |
| 9ce6c138 |
gcd= av_gcd(*au_scale, *au_rate); |
| 9d9f4119 |
*au_scale /= gcd;
*au_rate /= gcd;
} |
| c1309b27 |
void ff_get_guid(AVIOContext *s, ff_asf_guid *g)
{
assert(sizeof(*g) == 16);
avio_read(s, *g, sizeof(*g));
} |
| 36ffabc4 |
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;
} |