Patch by Andrew Wason, rectalogic rectalogic com Originally committed as revision 25853 to svn://svn.ffmpeg.org/ffmpeg/trunk
		
			
				
	
	
		
			559 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			559 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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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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| 
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| #include "libavcodec/avcodec.h"
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| #include "avformat.h"
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| #include "riff.h"
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| #include "libavcodec/bytestream.h"
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| 
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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('V', 'S', 'S', 'H') },
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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_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_H263P,        MKTAG('U', '2', '6', '3') },
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|     { CODEC_ID_H263P,        MKTAG('v', 'i', 'v', '1') },
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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_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('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_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_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_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('P', '4', '2', '2') },
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|     { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', '1', '2') },
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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('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_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_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_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_WMV3,         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_LOCO,         MKTAG('L', 'O', 'C', 'O') },
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|     { CODEC_ID_WNV1,         MKTAG('W', 'N', 'V', '1') },
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|     { CODEC_ID_AASC,         MKTAG('A', 'A', 'S', 'C') },
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|     { CODEC_ID_INDEO2,       MKTAG('R', 'T', '2', '1') },
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|     { CODEC_ID_FRAPS,        MKTAG('F', 'P', 'S', '1') },
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|     { CODEC_ID_THEORA,       MKTAG('t', 'h', 'e', 'o') },
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|     { CODEC_ID_TRUEMOTION2,  MKTAG('T', 'M', '2', '0') },
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|     { CODEC_ID_CSCD,         MKTAG('C', 'S', 'C', 'D') },
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|     { CODEC_ID_ZMBV,         MKTAG('Z', 'M', 'B', 'V') },
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|     { CODEC_ID_KMVC,         MKTAG('K', 'M', 'V', 'C') },
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|     { CODEC_ID_CAVS,         MKTAG('C', 'A', 'V', 'S') },
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|     { CODEC_ID_JPEG2000,     MKTAG('M', 'J', '2', 'C') },
 | |
|     { 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_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_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_GSM_MS,          0x1500 },
 | |
|     { CODEC_ID_TRUESPEECH,      0x1501 },
 | |
|     { 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_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 },
 | |
| };
 | |
| 
 | |
| #if CONFIG_MUXERS
 | |
| int64_t ff_start_tag(ByteIOContext *pb, const char *tag)
 | |
| {
 | |
|     put_tag(pb, tag);
 | |
|     put_le32(pb, 0);
 | |
|     return url_ftell(pb);
 | |
| }
 | |
| 
 | |
| void ff_end_tag(ByteIOContext *pb, int64_t start)
 | |
| {
 | |
|     int64_t pos;
 | |
| 
 | |
|     pos = url_ftell(pb);
 | |
|     url_fseek(pb, start - 4, SEEK_SET);
 | |
|     put_le32(pb, (uint32_t)(pos - start));
 | |
|     url_fseek(pb, pos, SEEK_SET);
 | |
| }
 | |
| 
 | |
| /* WAVEFORMATEX header */
 | |
| /* returns the size or -1 on error */
 | |
| int ff_put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
 | |
| {
 | |
|     int bps, blkalign, bytespersec;
 | |
|     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;
 | |
|     waveformatextensible =   (enc->channels > 2 && enc->channel_layout)
 | |
|                           || enc->sample_rate > 48000
 | |
|                           || av_get_bits_per_sample(enc->codec_id) > 16;
 | |
| 
 | |
|     if (waveformatextensible) {
 | |
|         put_le16(pb, 0xfffe);
 | |
|     } else {
 | |
|         put_le16(pb, enc->codec_tag);
 | |
|     }
 | |
|     put_le16(pb, enc->channels);
 | |
|     put_le32(pb, enc->sample_rate);
 | |
|     if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
 | |
|         bps = 0;
 | |
|     } else if (enc->codec_id == CODEC_ID_ADPCM_G726) {
 | |
|         bps = 4;
 | |
|     } else {
 | |
|         if (!(bps = av_get_bits_per_sample(enc->codec_id)))
 | |
|             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 || enc->codec_id == CODEC_ID_AC3) {
 | |
|         blkalign = enc->frame_size; //this is wrong, but it seems many demuxers do not work if this is set correctly
 | |
|         //blkalign = 144 * enc->bit_rate/enc->sample_rate;
 | |
|     } 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 ||
 | |
|         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 {
 | |
|         bytespersec = enc->bit_rate / 8;
 | |
|     }
 | |
|     put_le32(pb, bytespersec); /* bytes per second */
 | |
|     put_le16(pb, blkalign); /* block align */
 | |
|     put_le16(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_GSM_MS || enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
 | |
|         hdrsize += 2;
 | |
|         bytestream_put_le16(&riff_extradata, enc->frame_size); /* wSamplesPerBlock */
 | |
|     } else if(enc->extradata_size){
 | |
|         riff_extradata_start= enc->extradata;
 | |
|         riff_extradata= enc->extradata + enc->extradata_size;
 | |
|         hdrsize += enc->extradata_size;
 | |
|     } else if (!waveformatextensible){
 | |
|         hdrsize -= 2;
 | |
|     }
 | |
|     if(waveformatextensible) {                                    /* write WAVEFORMATEXTENSIBLE extensions */
 | |
|         hdrsize += 22;
 | |
|         put_le16(pb, riff_extradata - riff_extradata_start + 22); /* 22 is WAVEFORMATEXTENSIBLE size */
 | |
|         put_le16(pb, enc->bits_per_coded_sample);                 /* ValidBitsPerSample || SamplesPerBlock || Reserved */
 | |
|         put_le32(pb, enc->channel_layout);                        /* dwChannelMask */
 | |
|         put_le32(pb, enc->codec_tag);                             /* GUID + next 3 */
 | |
|         put_le32(pb, 0x00100000);
 | |
|         put_le32(pb, 0xAA000080);
 | |
|         put_le32(pb, 0x719B3800);
 | |
|     } else if(riff_extradata - riff_extradata_start) {
 | |
|         put_le16(pb, riff_extradata - riff_extradata_start);
 | |
|     }
 | |
|     put_buffer(pb, riff_extradata_start, riff_extradata - riff_extradata_start);
 | |
|     if(hdrsize&1){
 | |
|         hdrsize++;
 | |
|         put_byte(pb, 0);
 | |
|     }
 | |
| 
 | |
|     return hdrsize;
 | |
| }
 | |
| 
 | |
| /* BITMAPINFOHEADER header */
 | |
| void ff_put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
 | |
| {
 | |
|     put_le32(pb, 40 + enc->extradata_size); /* size */
 | |
|     put_le32(pb, enc->width);
 | |
|     //We always store RGB TopDown
 | |
|     put_le32(pb, enc->codec_tag ? enc->height : -enc->height);
 | |
|     put_le16(pb, 1); /* planes */
 | |
| 
 | |
|     put_le16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */
 | |
|     /* compression type */
 | |
|     put_le32(pb, enc->codec_tag);
 | |
|     put_le32(pb, enc->width * enc->height * 3);
 | |
|     put_le32(pb, 0);
 | |
|     put_le32(pb, 0);
 | |
|     put_le32(pb, 0);
 | |
|     put_le32(pb, 0);
 | |
| 
 | |
|     put_buffer(pb, enc->extradata, enc->extradata_size);
 | |
| 
 | |
|     if (!for_asf && enc->extradata_size & 1)
 | |
|         put_byte(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.
 | |
|  */
 | |
| void ff_get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size)
 | |
| {
 | |
|     int id;
 | |
| 
 | |
|     id = get_le16(pb);
 | |
|     codec->codec_type = AVMEDIA_TYPE_AUDIO;
 | |
|     codec->codec_tag = id;
 | |
|     codec->channels = get_le16(pb);
 | |
|     codec->sample_rate = get_le32(pb);
 | |
|     codec->bit_rate = get_le32(pb) * 8;
 | |
|     codec->block_align = get_le16(pb);
 | |
|     if (size == 14) {  /* We're dealing with plain vanilla WAVEFORMAT */
 | |
|         codec->bits_per_coded_sample = 8;
 | |
|     }else
 | |
|         codec->bits_per_coded_sample = get_le16(pb);
 | |
|     if (size >= 18) {  /* We're obviously dealing with WAVEFORMATEX */
 | |
|         int cbSize = get_le16(pb); /* cbSize */
 | |
|         size -= 18;
 | |
|         cbSize = FFMIN(size, cbSize);
 | |
|         if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */
 | |
|             codec->bits_per_coded_sample = get_le16(pb);
 | |
|             codec->channel_layout = get_le32(pb); /* dwChannelMask */
 | |
|             id = get_le32(pb); /* 4 first bytes of GUID */
 | |
|             url_fskip(pb, 12); /* skip end of GUID */
 | |
|             cbSize -= 22;
 | |
|             size -= 22;
 | |
|         }
 | |
|         codec->extradata_size = cbSize;
 | |
|         if (cbSize > 0) {
 | |
|             codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 | |
|             get_buffer(pb, codec->extradata, codec->extradata_size);
 | |
|             size -= cbSize;
 | |
|         }
 | |
| 
 | |
|         /* It is possible for the chunk to contain garbage at the end */
 | |
|         if (size > 0)
 | |
|             url_fskip(pb, size);
 | |
|     }
 | |
|     codec->codec_id = ff_wav_codec_get_id(id, codec->bits_per_coded_sample);
 | |
| }
 | |
| 
 | |
| 
 | |
| 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;
 | |
| }
 | |
| #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;
 | |
|     }else if(stream->codec_type == AVMEDIA_TYPE_VIDEO ||
 | |
|              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;
 | |
| }
 |