libavformat/riff.c

   1 /*
   2  * RIFF codec tags
   3  * Copyright (c) 2000 Fabrice Bellard
   4  *
   5  * This file is part of Libav.
   6  *
   7  * Libav is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * Libav is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with Libav; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #include "libavutil/mathematics.h"
  23 #include "libavcodec/avcodec.h"
  24 #include "avformat.h"
  25 #include "avio_internal.h"
  26 #include "riff.h"
  27 #include "libavcodec/bytestream.h"
  28
  29 /* Note: when encoding, the first matching tag is used, so order is
  30    important if multiple tags possible for a given codec. */
  31 const AVCodecTag ff_codec_bmp_tags[] = {
  32     { CODEC_ID_H264,         MKTAG('H', '2', '6', '4') },
  33     { CODEC_ID_H264,         MKTAG('h', '2', '6', '4') },
  34     { CODEC_ID_H264,         MKTAG('X', '2', '6', '4') },
  35     { CODEC_ID_H264,         MKTAG('x', '2', '6', '4') },
  36     { CODEC_ID_H264,         MKTAG('a', 'v', 'c', '1') },
  37     { CODEC_ID_H264,         MKTAG('D', 'A', 'V', 'C') },
  38     { CODEC_ID_H264,         MKTAG('V', 'S', 'S', 'H') },
  39     { CODEC_ID_H263,         MKTAG('H', '2', '6', '3') },
  40     { CODEC_ID_H263,         MKTAG('X', '2', '6', '3') },
  41     { CODEC_ID_H263,         MKTAG('T', '2', '6', '3') },
  42     { CODEC_ID_H263,         MKTAG('L', '2', '6', '3') },
  43     { CODEC_ID_H263,         MKTAG('V', 'X', '1', 'K') },
  44     { CODEC_ID_H263,         MKTAG('Z', 'y', 'G', 'o') },
  45     { CODEC_ID_H263,         MKTAG('M', '2', '6', '3') },
  46     { CODEC_ID_H263P,        MKTAG('H', '2', '6', '3') },
  47     { CODEC_ID_H263I,        MKTAG('I', '2', '6', '3') }, /* intel h263 */
  48     { CODEC_ID_H261,         MKTAG('H', '2', '6', '1') },
  49     { CODEC_ID_H263P,        MKTAG('U', '2', '6', '3') },
  50     { CODEC_ID_H263P,        MKTAG('v', 'i', 'v', '1') },
  51     { CODEC_ID_MPEG4,        MKTAG('F', 'M', 'P', '4') },
  52     { CODEC_ID_MPEG4,        MKTAG('D', 'I', 'V', 'X') },
  53     { CODEC_ID_MPEG4,        MKTAG('D', 'X', '5', '0') },
  54     { CODEC_ID_MPEG4,        MKTAG('X', 'V', 'I', 'D') },
  55     { CODEC_ID_MPEG4,        MKTAG('M', 'P', '4', 'S') },
  56     { CODEC_ID_MPEG4,        MKTAG('M', '4', 'S', '2') },
  57     { CODEC_ID_MPEG4,        MKTAG( 4 ,  0 ,  0 ,  0 ) }, /* some broken avi use this */
  58     { CODEC_ID_MPEG4,        MKTAG('D', 'I', 'V', '1') },
  59     { CODEC_ID_MPEG4,        MKTAG('B', 'L', 'Z', '0') },
  60     { CODEC_ID_MPEG4,        MKTAG('m', 'p', '4', 'v') },
  61     { CODEC_ID_MPEG4,        MKTAG('U', 'M', 'P', '4') },
  62     { CODEC_ID_MPEG4,        MKTAG('W', 'V', '1', 'F') },
  63     { CODEC_ID_MPEG4,        MKTAG('S', 'E', 'D', 'G') },
  64     { CODEC_ID_MPEG4,        MKTAG('R', 'M', 'P', '4') },
  65     { CODEC_ID_MPEG4,        MKTAG('3', 'I', 'V', '2') },
  66     { CODEC_ID_MPEG4,        MKTAG('W', 'A', 'W', 'V') }, /* WaWv MPEG-4 Video Codec */
  67     { CODEC_ID_MPEG4,        MKTAG('F', 'F', 'D', 'S') },
  68     { CODEC_ID_MPEG4,        MKTAG('F', 'V', 'F', 'W') },
  69     { CODEC_ID_MPEG4,        MKTAG('D', 'C', 'O', 'D') },
  70     { CODEC_ID_MPEG4,        MKTAG('M', 'V', 'X', 'M') },
  71     { CODEC_ID_MPEG4,        MKTAG('P', 'M', '4', 'V') },
  72     { CODEC_ID_MPEG4,        MKTAG('S', 'M', 'P', '4') },
  73     { CODEC_ID_MPEG4,        MKTAG('D', 'X', 'G', 'M') },
  74     { CODEC_ID_MPEG4,        MKTAG('V', 'I', 'D', 'M') },
  75     { CODEC_ID_MPEG4,        MKTAG('M', '4', 'T', '3') },
  76     { CODEC_ID_MPEG4,        MKTAG('G', 'E', 'O', 'X') },
  77     { CODEC_ID_MPEG4,        MKTAG('H', 'D', 'X', '4') }, /* flipped video */
  78     { CODEC_ID_MPEG4,        MKTAG('D', 'M', 'K', '2') },
  79     { CODEC_ID_MPEG4,        MKTAG('D', 'I', 'G', 'I') },
  80     { CODEC_ID_MPEG4,        MKTAG('I', 'N', 'M', 'C') },
  81     { CODEC_ID_MPEG4,        MKTAG('E', 'P', 'H', 'V') }, /* Ephv MPEG-4 */
  82     { CODEC_ID_MPEG4,        MKTAG('E', 'M', '4', 'A') },
  83     { CODEC_ID_MPEG4,        MKTAG('M', '4', 'C', 'C') }, /* Divio MPEG-4 */
  84     { CODEC_ID_MPEG4,        MKTAG('S', 'N', '4', '0') },
  85     { CODEC_ID_MPEG4,        MKTAG('V', 'S', 'P', 'X') },
  86     { CODEC_ID_MPEG4,        MKTAG('U', 'L', 'D', 'X') },
  87     { CODEC_ID_MPEG4,        MKTAG('G', 'E', 'O', 'V') },
  88     { CODEC_ID_MPEG4,        MKTAG('S', 'I', 'P', 'P') }, /* Samsung SHR-6040 */
  89     { CODEC_ID_MPEG4,        MKTAG('X', 'V', 'I', 'X') },
  90     { CODEC_ID_MPEG4,        MKTAG('D', 'r', 'e', 'X') },
  91     { CODEC_ID_MSMPEG4V3,    MKTAG('M', 'P', '4', '3') },
  92     { CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '3') },
  93     { CODEC_ID_MSMPEG4V3,    MKTAG('M', 'P', 'G', '3') },
  94     { CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '5') },
  95     { CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '6') },
  96     { CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '4') },
  97     { CODEC_ID_MSMPEG4V3,    MKTAG('D', 'V', 'X', '3') },
  98     { CODEC_ID_MSMPEG4V3,    MKTAG('A', 'P', '4', '1') },
  99     { CODEC_ID_MSMPEG4V3,    MKTAG('C', 'O', 'L', '1') },
 100     { CODEC_ID_MSMPEG4V3,    MKTAG('C', 'O', 'L', '0') },
 101     { CODEC_ID_MSMPEG4V2,    MKTAG('M', 'P', '4', '2') },
 102     { CODEC_ID_MSMPEG4V2,    MKTAG('D', 'I', 'V', '2') },
 103     { CODEC_ID_MSMPEG4V1,    MKTAG('M', 'P', 'G', '4') },
 104     { CODEC_ID_MSMPEG4V1,    MKTAG('M', 'P', '4', '1') },
 105     { CODEC_ID_WMV1,         MKTAG('W', 'M', 'V', '1') },
 106     { CODEC_ID_WMV2,         MKTAG('W', 'M', 'V', '2') },
 107     { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 's', 'd') },
 108     { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'h', 'd') },
 109     { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'h', '1') },
 110     { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 's', 'l') },
 111     { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', '2', '5') },
 112     { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', '5', '0') },
 113     { CODEC_ID_DVVIDEO,      MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */
 114     { CODEC_ID_DVVIDEO,      MKTAG('C', 'D', 'V', 'H') }, /* Canopus DV */
 115     { CODEC_ID_DVVIDEO,      MKTAG('C', 'D', 'V', '5') }, /* Canopus DV */
 116     { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'c', ' ') },
 117     { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'c', 's') },
 118     { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'h', '1') },
 119     { CODEC_ID_MPEG1VIDEO,   MKTAG('m', 'p', 'g', '1') },
 120     { CODEC_ID_MPEG1VIDEO,   MKTAG('m', 'p', 'g', '2') },
 121     { CODEC_ID_MPEG2VIDEO,   MKTAG('m', 'p', 'g', '2') },
 122     { CODEC_ID_MPEG2VIDEO,   MKTAG('M', 'P', 'E', 'G') },
 123     { CODEC_ID_MPEG1VIDEO,   MKTAG('P', 'I', 'M', '1') },
 124     { CODEC_ID_MPEG2VIDEO,   MKTAG('P', 'I', 'M', '2') },
 125     { CODEC_ID_MPEG1VIDEO,   MKTAG('V', 'C', 'R', '2') },
 126     { CODEC_ID_MPEG1VIDEO,   MKTAG( 1 ,  0 ,  0 ,  16) },
 127     { CODEC_ID_MPEG2VIDEO,   MKTAG( 2 ,  0 ,  0 ,  16) },
 128     { CODEC_ID_MPEG4,        MKTAG( 4 ,  0 ,  0 ,  16) },
 129     { CODEC_ID_MPEG2VIDEO,   MKTAG('D', 'V', 'R', ' ') },
 130     { CODEC_ID_MPEG2VIDEO,   MKTAG('M', 'M', 'E', 'S') },
 131     { CODEC_ID_MPEG2VIDEO,   MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */
 132     { CODEC_ID_MPEG2VIDEO,   MKTAG('s', 'l', 'i', 'f') },
 133     { CODEC_ID_MPEG2VIDEO,   MKTAG('E', 'M', '2', 'V') },
 134     { CODEC_ID_MPEG2VIDEO,   MKTAG('M', '7', '0', '1') }, /* Matrox MPEG2 intra-only */
 135     { CODEC_ID_MPEG2VIDEO,   MKTAG('m', 'p', 'g', 'v') },
 136     { CODEC_ID_MJPEG,        MKTAG('M', 'J', 'P', 'G') },
 137     { CODEC_ID_MJPEG,        MKTAG('L', 'J', 'P', 'G') },
 138     { CODEC_ID_MJPEG,        MKTAG('d', 'm', 'b', '1') },
 139     { CODEC_ID_MJPEG,        MKTAG('m', 'j', 'p', 'a') },
 140     { CODEC_ID_LJPEG,        MKTAG('L', 'J', 'P', 'G') },
 141     { CODEC_ID_MJPEG,        MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
 142     { CODEC_ID_JPEGLS,       MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */
 143     { CODEC_ID_JPEGLS,       MKTAG('M', 'J', 'P', 'G') },
 144     { CODEC_ID_MJPEG,        MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
 145     { CODEC_ID_MJPEG,        MKTAG('j', 'p', 'e', 'g') },
 146     { CODEC_ID_MJPEG,        MKTAG('I', 'J', 'P', 'G') },
 147     { CODEC_ID_MJPEG,        MKTAG('A', 'V', 'R', 'n') },
 148     { CODEC_ID_MJPEG,        MKTAG('A', 'C', 'D', 'V') },
 149     { CODEC_ID_MJPEG,        MKTAG('Q', 'I', 'V', 'G') },
 150     { CODEC_ID_MJPEG,        MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */
 151     { CODEC_ID_MJPEG,        MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */
 152     { CODEC_ID_MJPEG,        MKTAG('I', 'J', 'L', 'V') }, /* Intel JPEG Library Video Codec */
 153     { CODEC_ID_MJPEG,        MKTAG('M', 'V', 'J', 'P') }, /* Midvid JPEG Video Codec */
 154     { CODEC_ID_MJPEG,        MKTAG('A', 'V', 'I', '1') },
 155     { CODEC_ID_MJPEG,        MKTAG('A', 'V', 'I', '2') },
 156     { CODEC_ID_MJPEG,        MKTAG('M', 'T', 'S', 'J') },
 157     { CODEC_ID_MJPEG,        MKTAG('Z', 'J', 'P', 'G') }, /* Paradigm Matrix M-JPEG Codec */
 158     { CODEC_ID_MJPEG,        MKTAG('M', 'M', 'J', 'P') },
 159     { CODEC_ID_HUFFYUV,      MKTAG('H', 'F', 'Y', 'U') },
 160     { CODEC_ID_FFVHUFF,      MKTAG('F', 'F', 'V', 'H') },
 161     { CODEC_ID_CYUV,         MKTAG('C', 'Y', 'U', 'V') },
 162     { CODEC_ID_RAWVIDEO,     MKTAG( 0 ,  0 ,  0 ,  0 ) },
 163     { CODEC_ID_RAWVIDEO,     MKTAG( 3 ,  0 ,  0 ,  0 ) },
 164     { CODEC_ID_RAWVIDEO,     MKTAG('I', '4', '2', '0') },
 165     { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'U', 'Y', '2') },
 166     { CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '2', '2') },
 167     { CODEC_ID_RAWVIDEO,     MKTAG('V', '4', '2', '2') },
 168     { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'U', 'N', 'V') },
 169     { CODEC_ID_RAWVIDEO,     MKTAG('U', 'Y', 'N', 'V') },
 170     { CODEC_ID_RAWVIDEO,     MKTAG('U', 'Y', 'N', 'Y') },
 171     { CODEC_ID_RAWVIDEO,     MKTAG('u', 'y', 'v', '1') },
 172     { CODEC_ID_RAWVIDEO,     MKTAG('2', 'V', 'u', '1') },
 173     { CODEC_ID_RAWVIDEO,     MKTAG('2', 'v', 'u', 'y') },
 174     { CODEC_ID_RAWVIDEO,     MKTAG('y', 'u', 'v', 's') },
 175     { CODEC_ID_RAWVIDEO,     MKTAG('y', 'u', 'v', '2') },
 176     { CODEC_ID_RAWVIDEO,     MKTAG('P', '4', '2', '2') },
 177     { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', '1', '2') },
 178     { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', '1', '6') },
 179     { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', '2', '4') },
 180     { CODEC_ID_RAWVIDEO,     MKTAG('U', 'Y', 'V', 'Y') },
 181     { CODEC_ID_RAWVIDEO,     MKTAG('V', 'Y', 'U', 'Y') },
 182     { CODEC_ID_RAWVIDEO,     MKTAG('I', 'Y', 'U', 'V') },
 183     { CODEC_ID_RAWVIDEO,     MKTAG('Y', '8', '0', '0') },
 184     { CODEC_ID_RAWVIDEO,     MKTAG('Y', '8', ' ', ' ') },
 185     { CODEC_ID_RAWVIDEO,     MKTAG('H', 'D', 'Y', 'C') },
 186     { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', 'U', '9') },
 187     { CODEC_ID_RAWVIDEO,     MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */
 188     { CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '1', '1') },
 189     { CODEC_ID_RAWVIDEO,     MKTAG('N', 'V', '1', '2') },
 190     { CODEC_ID_RAWVIDEO,     MKTAG('N', 'V', '2', '1') },
 191     { CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '1', 'B') },
 192     { CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '2', 'B') },
 193     { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'U', 'V', '9') },
 194     { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', 'U', '9') },
 195     { CODEC_ID_RAWVIDEO,     MKTAG('a', 'u', 'v', '2') },
 196     { CODEC_ID_FRWU,         MKTAG('F', 'R', 'W', 'U') },
 197     { CODEC_ID_R10K,         MKTAG('R', '1', '0', 'k') },
 198     { CODEC_ID_R210,         MKTAG('r', '2', '1', '0') },
 199     { CODEC_ID_V210,         MKTAG('v', '2', '1', '0') },
 200     { CODEC_ID_V410,         MKTAG('v', '4', '1', '0') },
 201     { CODEC_ID_INDEO3,       MKTAG('I', 'V', '3', '1') },
 202     { CODEC_ID_INDEO3,       MKTAG('I', 'V', '3', '2') },
 203     { CODEC_ID_INDEO4,       MKTAG('I', 'V', '4', '1') },
 204     { CODEC_ID_INDEO5,       MKTAG('I', 'V', '5', '0') },
 205     { CODEC_ID_VP3,          MKTAG('V', 'P', '3', '1') },
 206     { CODEC_ID_VP3,          MKTAG('V', 'P', '3', '0') },
 207     { CODEC_ID_VP5,          MKTAG('V', 'P', '5', '0') },
 208     { CODEC_ID_VP6,          MKTAG('V', 'P', '6', '0') },
 209     { CODEC_ID_VP6,          MKTAG('V', 'P', '6', '1') },
 210     { CODEC_ID_VP6,          MKTAG('V', 'P', '6', '2') },
 211     { CODEC_ID_VP6F,         MKTAG('V', 'P', '6', 'F') },
 212     { CODEC_ID_VP6F,         MKTAG('F', 'L', 'V', '4') },
 213     { CODEC_ID_VP8,          MKTAG('V', 'P', '8', '0') },
 214     { CODEC_ID_ASV1,         MKTAG('A', 'S', 'V', '1') },
 215     { CODEC_ID_ASV2,         MKTAG('A', 'S', 'V', '2') },
 216     { CODEC_ID_VCR1,         MKTAG('V', 'C', 'R', '1') },
 217     { CODEC_ID_FFV1,         MKTAG('F', 'F', 'V', '1') },
 218     { CODEC_ID_XAN_WC4,      MKTAG('X', 'x', 'a', 'n') },
 219     { CODEC_ID_MIMIC,        MKTAG('L', 'M', '2', '0') },
 220     { CODEC_ID_MSRLE,        MKTAG('m', 'r', 'l', 'e') },
 221     { CODEC_ID_MSRLE,        MKTAG( 1 ,  0 ,  0 ,  0 ) },
 222     { CODEC_ID_MSRLE,        MKTAG( 2 ,  0 ,  0 ,  0 ) },
 223     { CODEC_ID_MSVIDEO1,     MKTAG('M', 'S', 'V', 'C') },
 224     { CODEC_ID_MSVIDEO1,     MKTAG('m', 's', 'v', 'c') },
 225     { CODEC_ID_MSVIDEO1,     MKTAG('C', 'R', 'A', 'M') },
 226     { CODEC_ID_MSVIDEO1,     MKTAG('c', 'r', 'a', 'm') },
 227     { CODEC_ID_MSVIDEO1,     MKTAG('W', 'H', 'A', 'M') },
 228     { CODEC_ID_MSVIDEO1,     MKTAG('w', 'h', 'a', 'm') },
 229     { CODEC_ID_CINEPAK,      MKTAG('c', 'v', 'i', 'd') },
 230     { CODEC_ID_TRUEMOTION1,  MKTAG('D', 'U', 'C', 'K') },
 231     { CODEC_ID_TRUEMOTION1,  MKTAG('P', 'V', 'E', 'Z') },
 232     { CODEC_ID_MSZH,         MKTAG('M', 'S', 'Z', 'H') },
 233     { CODEC_ID_ZLIB,         MKTAG('Z', 'L', 'I', 'B') },
 234     { CODEC_ID_SNOW,         MKTAG('S', 'N', 'O', 'W') },
 235     { CODEC_ID_4XM,          MKTAG('4', 'X', 'M', 'V') },
 236     { CODEC_ID_FLV1,         MKTAG('F', 'L', 'V', '1') },
 237     { CODEC_ID_FLASHSV,      MKTAG('F', 'S', 'V', '1') },
 238     { CODEC_ID_SVQ1,         MKTAG('s', 'v', 'q', '1') },
 239     { CODEC_ID_TSCC,         MKTAG('t', 's', 'c', 'c') },
 240     { CODEC_ID_ULTI,         MKTAG('U', 'L', 'T', 'I') },
 241     { CODEC_ID_VIXL,         MKTAG('V', 'I', 'X', 'L') },
 242     { CODEC_ID_QPEG,         MKTAG('Q', 'P', 'E', 'G') },
 243     { CODEC_ID_QPEG,         MKTAG('Q', '1', '.', '0') },
 244     { CODEC_ID_QPEG,         MKTAG('Q', '1', '.', '1') },
 245     { CODEC_ID_WMV3,         MKTAG('W', 'M', 'V', '3') },
 246     { CODEC_ID_WMV3IMAGE,    MKTAG('W', 'M', 'V', 'P') },
 247     { CODEC_ID_VC1,          MKTAG('W', 'V', 'C', '1') },
 248     { CODEC_ID_VC1,          MKTAG('W', 'M', 'V', 'A') },
 249     { CODEC_ID_VC1IMAGE,     MKTAG('W', 'V', 'P', '2') },
 250     { CODEC_ID_LOCO,         MKTAG('L', 'O', 'C', 'O') },
 251     { CODEC_ID_WNV1,         MKTAG('W', 'N', 'V', '1') },
 252     { CODEC_ID_AASC,         MKTAG('A', 'A', 'S', 'C') },
 253     { CODEC_ID_INDEO2,       MKTAG('R', 'T', '2', '1') },
 254     { CODEC_ID_FRAPS,        MKTAG('F', 'P', 'S', '1') },
 255     { CODEC_ID_THEORA,       MKTAG('t', 'h', 'e', 'o') },
 256     { CODEC_ID_TRUEMOTION2,  MKTAG('T', 'M', '2', '0') },
 257     { CODEC_ID_CSCD,         MKTAG('C', 'S', 'C', 'D') },
 258     { CODEC_ID_ZMBV,         MKTAG('Z', 'M', 'B', 'V') },
 259     { CODEC_ID_KMVC,         MKTAG('K', 'M', 'V', 'C') },
 260     { CODEC_ID_CAVS,         MKTAG('C', 'A', 'V', 'S') },
 261     { CODEC_ID_JPEG2000,     MKTAG('m', 'j', 'p', '2') },
 262     { CODEC_ID_JPEG2000,     MKTAG('M', 'J', '2', 'C') },
 263     { CODEC_ID_JPEG2000,     MKTAG('L', 'J', '2', 'C') },
 264     { CODEC_ID_JPEG2000,     MKTAG('L', 'J', '2', 'K') },
 265     { CODEC_ID_VMNC,         MKTAG('V', 'M', 'n', 'c') },
 266     { CODEC_ID_TARGA,        MKTAG('t', 'g', 'a', ' ') },
 267     { CODEC_ID_PNG,          MKTAG('M', 'P', 'N', 'G') },
 268     { CODEC_ID_PNG,          MKTAG('P', 'N', 'G', '1') },
 269     { CODEC_ID_CLJR,         MKTAG('C', 'L', 'J', 'R') },
 270     { CODEC_ID_DIRAC,        MKTAG('d', 'r', 'a', 'c') },
 271     { CODEC_ID_RPZA,         MKTAG('a', 'z', 'p', 'r') },
 272     { CODEC_ID_RPZA,         MKTAG('R', 'P', 'Z', 'A') },
 273     { CODEC_ID_RPZA,         MKTAG('r', 'p', 'z', 'a') },
 274     { CODEC_ID_SP5X,         MKTAG('S', 'P', '5', '4') },
 275     { CODEC_ID_AURA,         MKTAG('A', 'U', 'R', 'A') },
 276     { CODEC_ID_AURA2,        MKTAG('A', 'U', 'R', '2') },
 277     { CODEC_ID_DPX,          MKTAG('d', 'p', 'x', ' ') },
 278     { CODEC_ID_KGV1,         MKTAG('K', 'G', 'V', '1') },
 279     { CODEC_ID_LAGARITH,     MKTAG('L', 'A', 'G', 'S') },
 280     { CODEC_ID_UTVIDEO,      MKTAG('U', 'L', 'R', 'A') },
 281     { CODEC_ID_UTVIDEO,      MKTAG('U', 'L', 'R', 'G') },
 282     { CODEC_ID_UTVIDEO,      MKTAG('U', 'L', 'Y', '0') },
 283     { CODEC_ID_UTVIDEO,      MKTAG('U', 'L', 'Y', '2') },
 284     { CODEC_ID_VBLE,         MKTAG('V', 'B', 'L', 'E') },
 285     { CODEC_ID_DXTORY,       MKTAG('x', 't', 'o', 'r') },
 286     { CODEC_ID_ZEROCODEC,    MKTAG('Z', 'E', 'C', 'O') },
 287     { CODEC_ID_MSS1,         MKTAG('M', 'S', 'S', '1') },
 288     { CODEC_ID_MSA1,         MKTAG('M', 'S', 'A', '1') },
 289     { CODEC_ID_NONE,         0 }
 290 };
 291
 292 const AVCodecTag ff_codec_wav_tags[] = {
 293     { CODEC_ID_PCM_S16LE,       0x0001 },
 294     { CODEC_ID_PCM_U8,          0x0001 }, /* must come after s16le in this list */
 295     { CODEC_ID_PCM_S24LE,       0x0001 },
 296     { CODEC_ID_PCM_S32LE,       0x0001 },
 297     { CODEC_ID_ADPCM_MS,        0x0002 },
 298     { CODEC_ID_PCM_F32LE,       0x0003 },
 299     { CODEC_ID_PCM_F64LE,       0x0003 }, /* must come after f32le in this list */
 300     { CODEC_ID_PCM_ALAW,        0x0006 },
 301     { CODEC_ID_PCM_MULAW,       0x0007 },
 302     { CODEC_ID_WMAVOICE,        0x000A },
 303     { CODEC_ID_ADPCM_IMA_WAV,   0x0011 },
 304     { CODEC_ID_PCM_ZORK,        0x0011 }, /* must come after adpcm_ima_wav in this list */
 305     { CODEC_ID_ADPCM_YAMAHA,    0x0020 },
 306     { CODEC_ID_TRUESPEECH,      0x0022 },
 307     { CODEC_ID_GSM_MS,          0x0031 },
 308     { CODEC_ID_ADPCM_G726,      0x0045 },
 309     { CODEC_ID_MP2,             0x0050 },
 310     { CODEC_ID_MP3,             0x0055 },
 311     { CODEC_ID_AMR_NB,          0x0057 },
 312     { CODEC_ID_AMR_WB,          0x0058 },
 313     { CODEC_ID_ADPCM_IMA_DK4,   0x0061 },  /* rogue format number */
 314     { CODEC_ID_ADPCM_IMA_DK3,   0x0062 },  /* rogue format number */
 315     { CODEC_ID_ADPCM_IMA_WAV,   0x0069 },
 316     { CODEC_ID_VOXWARE,         0x0075 },
 317     { CODEC_ID_AAC,             0x00ff },
 318     { CODEC_ID_SIPR,            0x0130 },
 319     { CODEC_ID_WMAV1,           0x0160 },
 320     { CODEC_ID_WMAV2,           0x0161 },
 321     { CODEC_ID_WMAPRO,          0x0162 },
 322     { CODEC_ID_WMALOSSLESS,     0x0163 },
 323     { CODEC_ID_ADPCM_CT,        0x0200 },
 324     { CODEC_ID_ATRAC3,          0x0270 },
 325     { CODEC_ID_ADPCM_G722,      0x028F },
 326     { CODEC_ID_IMC,             0x0401 },
 327     { CODEC_ID_IAC,             0x0402 },
 328     { CODEC_ID_GSM_MS,          0x1500 },
 329     { CODEC_ID_TRUESPEECH,      0x1501 },
 330     { CODEC_ID_AAC,             0x1600 }, /* ADTS AAC */
 331     { CODEC_ID_AAC_LATM,        0x1602 },
 332     { CODEC_ID_AC3,             0x2000 },
 333     { CODEC_ID_DTS,             0x2001 },
 334     { CODEC_ID_PCM_MULAW,       0x6c75 },
 335     { CODEC_ID_AAC,             0x706d },
 336     { CODEC_ID_AAC,             0x4143 },
 337     { CODEC_ID_SPEEX,           0xA109 },
 338     { CODEC_ID_FLAC,            0xF1AC },
 339     { CODEC_ID_ADPCM_SWF,       ('S'<<8)+'F' },
 340     { CODEC_ID_VORBIS,          ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id?
 341
 342     /* FIXME: All of the IDs below are not 16 bit and thus illegal. */
 343     // for NuppelVideo (nuv.c)
 344     { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') },
 345     { CODEC_ID_MP3,       MKTAG('L', 'A', 'M', 'E') },
 346     { CODEC_ID_MP3,       MKTAG('M', 'P', '3', ' ') },
 347     { CODEC_ID_NONE,      0 },
 348 };
 349
 350 const AVMetadataConv ff_riff_info_conv[] = {
 351     { "IART", "artist"    },
 352     { "ICMT", "comment"   },
 353     { "ICOP", "copyright" },
 354     { "ICRD", "date"      },
 355     { "IGNR", "genre"     },
 356     { "ILNG", "language"  },
 357     { "INAM", "title"     },
 358     { "IPRD", "album"     },
 359     { "IPRT", "track"     },
 360     { "ISFT", "encoder"   },
 361     { "ITCH", "encoded_by"},
 362     { 0 },
 363 };
 364
 365 const char ff_riff_tags[][5] = {
 366     "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI",
 367     "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD",
 368     "IPRT", "ISBJ", "ISFT", "ISHP", "ISRC", "ISRF", "ITCH",
 369     {0}
 370 };
 371
 372 #if CONFIG_MUXERS
 373 int64_t ff_start_tag(AVIOContext *pb, const char *tag)
 374 {
 375     ffio_wfourcc(pb, tag);
 376     avio_wl32(pb, 0);
 377     return avio_tell(pb);
 378 }
 379
 380 void ff_end_tag(AVIOContext *pb, int64_t start)
 381 {
 382     int64_t pos;
 383
 384     pos = avio_tell(pb);
 385     avio_seek(pb, start - 4, SEEK_SET);
 386     avio_wl32(pb, (uint32_t)(pos - start));
 387     avio_seek(pb, pos, SEEK_SET);
 388 }
 389
 390 /* WAVEFORMATEX header */
 391 /* returns the size or -1 on error */
 392 int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc)
 393 {
 394     int bps, blkalign, bytespersec, frame_size;
 395     int hdrsize = 18;
 396     int waveformatextensible;
 397     uint8_t temp[256];
 398     uint8_t *riff_extradata= temp;
 399     uint8_t *riff_extradata_start= temp;
 400
 401     if(!enc->codec_tag || enc->codec_tag > 0xffff)
 402         return -1;
 403
 404     /* We use the known constant frame size for the codec if known, otherwise
 405        fallback to using AVCodecContext.frame_size, which is not as reliable
 406        for indicating packet duration */
 407     frame_size = av_get_audio_frame_duration(enc, 0);
 408     if (!frame_size)
 409         frame_size = enc->frame_size;
 410
 411     waveformatextensible =   (enc->channels > 2 && enc->channel_layout)
 412                           || enc->sample_rate > 48000
 413                           || av_get_bits_per_sample(enc->codec_id) > 16;
 414
 415     if (waveformatextensible) {
 416         avio_wl16(pb, 0xfffe);
 417     } else {
 418         avio_wl16(pb, enc->codec_tag);
 419     }
 420     avio_wl16(pb, enc->channels);
 421     avio_wl32(pb, enc->sample_rate);
 422     if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
 423         bps = 0;
 424     } else {
 425         if (!(bps = av_get_bits_per_sample(enc->codec_id))) {
 426             if (enc->bits_per_coded_sample)
 427                 bps = enc->bits_per_coded_sample;
 428             else
 429                 bps = 16; // default to 16
 430         }
 431     }
 432     if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){
 433         av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps);
 434     }
 435
 436     if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) {
 437         /* this is wrong, but it seems many demuxers do not work if this is set
 438            correctly */
 439         blkalign = frame_size;
 440         //blkalign = 144 * enc->bit_rate/enc->sample_rate;
 441     } else if (enc->codec_id == CODEC_ID_AC3) {
 442             blkalign = 3840; //maximum bytes per frame
 443     } else if (enc->block_align != 0) { /* specified by the codec */
 444         blkalign = enc->block_align;
 445     } else
 446         blkalign = bps * enc->channels / av_gcd(8, bps);
 447     if (enc->codec_id == CODEC_ID_PCM_U8 ||
 448         enc->codec_id == CODEC_ID_PCM_S24LE ||
 449         enc->codec_id == CODEC_ID_PCM_S32LE ||
 450         enc->codec_id == CODEC_ID_PCM_F32LE ||
 451         enc->codec_id == CODEC_ID_PCM_F64LE ||
 452         enc->codec_id == CODEC_ID_PCM_S16LE) {
 453         bytespersec = enc->sample_rate * blkalign;
 454     } else {
 455         bytespersec = enc->bit_rate / 8;
 456     }
 457     avio_wl32(pb, bytespersec); /* bytes per second */
 458     avio_wl16(pb, blkalign); /* block align */
 459     avio_wl16(pb, bps); /* bits per sample */
 460     if (enc->codec_id == CODEC_ID_MP3) {
 461         hdrsize += 12;
 462         bytestream_put_le16(&riff_extradata, 1);    /* wID */
 463         bytestream_put_le32(&riff_extradata, 2);    /* fdwFlags */
 464         bytestream_put_le16(&riff_extradata, 1152); /* nBlockSize */
 465         bytestream_put_le16(&riff_extradata, 1);    /* nFramesPerBlock */
 466         bytestream_put_le16(&riff_extradata, 1393); /* nCodecDelay */
 467     } else if (enc->codec_id == CODEC_ID_MP2) {
 468         hdrsize += 22;
 469         bytestream_put_le16(&riff_extradata, 2);                          /* fwHeadLayer */
 470         bytestream_put_le32(&riff_extradata, enc->bit_rate);              /* dwHeadBitrate */
 471         bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8); /* fwHeadMode */
 472         bytestream_put_le16(&riff_extradata, 0);                          /* fwHeadModeExt */
 473         bytestream_put_le16(&riff_extradata, 1);                          /* wHeadEmphasis */
 474         bytestream_put_le16(&riff_extradata, 16);                         /* fwHeadFlags */
 475         bytestream_put_le32(&riff_extradata, 0);                          /* dwPTSLow */
 476         bytestream_put_le32(&riff_extradata, 0);                          /* dwPTSHigh */
 477     } else if (enc->codec_id == CODEC_ID_GSM_MS || enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
 478         hdrsize += 2;
 479         bytestream_put_le16(&riff_extradata, frame_size); /* wSamplesPerBlock */
 480     } else if(enc->extradata_size){
 481         riff_extradata_start= enc->extradata;
 482         riff_extradata= enc->extradata + enc->extradata_size;
 483         hdrsize += enc->extradata_size;
 484     }
 485     if(waveformatextensible) {                                    /* write WAVEFORMATEXTENSIBLE extensions */
 486         hdrsize += 22;
 487         avio_wl16(pb, riff_extradata - riff_extradata_start + 22); /* 22 is WAVEFORMATEXTENSIBLE size */
 488         avio_wl16(pb, bps);                                        /* ValidBitsPerSample || SamplesPerBlock || Reserved */
 489         avio_wl32(pb, enc->channel_layout);                        /* dwChannelMask */
 490         avio_wl32(pb, enc->codec_tag);                             /* GUID + next 3 */
 491         avio_wl32(pb, 0x00100000);
 492         avio_wl32(pb, 0xAA000080);
 493         avio_wl32(pb, 0x719B3800);
 494     } else {
 495         avio_wl16(pb, riff_extradata - riff_extradata_start); /* cbSize */
 496     }
 497     avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start);
 498     if(hdrsize&1){
 499         hdrsize++;
 500         avio_w8(pb, 0);
 501     }
 502
 503     return hdrsize;
 504 }
 505
 506 /* BITMAPINFOHEADER header */
 507 void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
 508 {
 509     avio_wl32(pb, 40 + enc->extradata_size); /* size */
 510     avio_wl32(pb, enc->width);
 511     //We always store RGB TopDown
 512     avio_wl32(pb, enc->codec_tag ? enc->height : -enc->height);
 513     avio_wl16(pb, 1); /* planes */
 514
 515     avio_wl16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */
 516     /* compression type */
 517     avio_wl32(pb, enc->codec_tag);
 518     avio_wl32(pb, enc->width * enc->height * 3);
 519     avio_wl32(pb, 0);
 520     avio_wl32(pb, 0);
 521     avio_wl32(pb, 0);
 522     avio_wl32(pb, 0);
 523
 524     avio_write(pb, enc->extradata, enc->extradata_size);
 525
 526     if (!for_asf && enc->extradata_size & 1)
 527         avio_w8(pb, 0);
 528 }
 529 #endif //CONFIG_MUXERS
 530
 531 #if CONFIG_DEMUXERS
 532 /* We could be given one of the three possible structures here:
 533  * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
 534  * is an expansion of the previous one with the fields added
 535  * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
 536  * WAVEFORMATEX adds 'WORD  cbSize' and basically makes itself
 537  * an openended structure.
 538  */
 539 int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
 540 {
 541     int id;
 542
 543     id = avio_rl16(pb);
 544     codec->codec_type = AVMEDIA_TYPE_AUDIO;
 545     codec->codec_tag = id;
 546     codec->channels = avio_rl16(pb);
 547     codec->sample_rate = avio_rl32(pb);
 548     codec->bit_rate = avio_rl32(pb) * 8;
 549     codec->block_align = avio_rl16(pb);
 550     if (size == 14) {  /* We're dealing with plain vanilla WAVEFORMAT */
 551         codec->bits_per_coded_sample = 8;
 552     }else
 553         codec->bits_per_coded_sample = avio_rl16(pb);
 554     if (size >= 18) {  /* We're obviously dealing with WAVEFORMATEX */
 555         int cbSize = avio_rl16(pb); /* cbSize */
 556         size -= 18;
 557         cbSize = FFMIN(size, cbSize);
 558         if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */
 559             codec->bits_per_coded_sample = avio_rl16(pb);
 560             codec->channel_layout = avio_rl32(pb); /* dwChannelMask */
 561             id = avio_rl32(pb); /* 4 first bytes of GUID */
 562             avio_skip(pb, 12); /* skip end of GUID */
 563             cbSize -= 22;
 564             size -= 22;
 565         }
 566         codec->extradata_size = cbSize;
 567         if (cbSize > 0) {
 568             av_free(codec->extradata);
 569             codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 570             if (!codec->extradata)
 571                 return AVERROR(ENOMEM);
 572             avio_read(pb, codec->extradata, codec->extradata_size);
 573             size -= cbSize;
 574         }
 575
 576         /* It is possible for the chunk to contain garbage at the end */
 577         if (size > 0)
 578             avio_skip(pb, size);
 579     }
 580     codec->codec_id = ff_wav_codec_get_id(id, codec->bits_per_coded_sample);
 581     if (codec->codec_id == CODEC_ID_AAC_LATM) {
 582         /* channels and sample_rate values are those prior to applying SBR and/or PS */
 583         codec->channels    = 0;
 584         codec->sample_rate = 0;
 585     }
 586     /* override bits_per_coded_sample for G.726 */
 587     if (codec->codec_id == CODEC_ID_ADPCM_G726)
 588         codec->bits_per_coded_sample = codec->bit_rate / codec->sample_rate;
 589
 590     return 0;
 591 }
 592
 593
 594 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps)
 595 {
 596     enum CodecID id;
 597     id = ff_codec_get_id(ff_codec_wav_tags, tag);
 598     if (id <= 0)
 599         return id;
 600     /* handle specific u8 codec */
 601     if (id == CODEC_ID_PCM_S16LE && bps == 8)
 602         id = CODEC_ID_PCM_U8;
 603     if (id == CODEC_ID_PCM_S16LE && bps == 24)
 604         id = CODEC_ID_PCM_S24LE;
 605     if (id == CODEC_ID_PCM_S16LE && bps == 32)
 606         id = CODEC_ID_PCM_S32LE;
 607     if (id == CODEC_ID_PCM_F32LE && bps == 64)
 608         id = CODEC_ID_PCM_F64LE;
 609     if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8)
 610         id = CODEC_ID_PCM_ZORK;
 611     return id;
 612 }
 613
 614 int ff_get_bmp_header(AVIOContext *pb, AVStream *st)
 615 {
 616     int tag1;
 617     avio_rl32(pb); /* size */
 618     st->codec->width = avio_rl32(pb);
 619     st->codec->height = (int32_t)avio_rl32(pb);
 620     avio_rl16(pb); /* planes */
 621     st->codec->bits_per_coded_sample= avio_rl16(pb); /* depth */
 622     tag1 = avio_rl32(pb);
 623     avio_rl32(pb); /* ImageSize */
 624     avio_rl32(pb); /* XPelsPerMeter */
 625     avio_rl32(pb); /* YPelsPerMeter */
 626     avio_rl32(pb); /* ClrUsed */
 627     avio_rl32(pb); /* ClrImportant */
 628     return tag1;
 629 }
 630 #endif // CONFIG_DEMUXERS
 631
 632 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
 633 {
 634     int gcd;
 635     int audio_frame_size;
 636
 637     /* We use the known constant frame size for the codec if known, otherwise
 638        fallback to using AVCodecContext.frame_size, which is not as reliable
 639        for indicating packet duration */
 640     audio_frame_size = av_get_audio_frame_duration(stream, 0);
 641     if (!audio_frame_size)
 642         audio_frame_size = stream->frame_size;
 643
 644     *au_ssize= stream->block_align;
 645     if (audio_frame_size && stream->sample_rate) {
 646         *au_scale = audio_frame_size;
 647         *au_rate= stream->sample_rate;
 648     }else if(stream->codec_type == AVMEDIA_TYPE_VIDEO ||
 649              stream->codec_type == AVMEDIA_TYPE_DATA ||
 650              stream->codec_type == AVMEDIA_TYPE_SUBTITLE){
 651         *au_scale= stream->time_base.num;
 652         *au_rate = stream->time_base.den;
 653     }else{
 654         *au_scale= stream->block_align ? stream->block_align*8 : 8;
 655         *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate;
 656     }
 657     gcd= av_gcd(*au_scale, *au_rate);
 658     *au_scale /= gcd;
 659     *au_rate /= gcd;
 660 }
 661
 662 int ff_read_riff_info(AVFormatContext *s, int64_t size)
 663 {
 664     int64_t start, end, cur;
 665     AVIOContext *pb = s->pb;
 666
 667     start = avio_tell(pb);
 668     end = start + size;
 669
 670     while ((cur = avio_tell(pb)) >= 0 && cur <= end - 8 /* = tag + size */) {
 671         uint32_t chunk_code;
 672         int64_t chunk_size;
 673         char key[5] = {0};
 674         char *value;
 675
 676         chunk_code = avio_rl32(pb);
 677         chunk_size = avio_rl32(pb);
 678         if (chunk_size > end || end - chunk_size < cur || chunk_size == UINT_MAX) {
 679             av_log(s, AV_LOG_ERROR, "too big INFO subchunk\n");
 680             return AVERROR_INVALIDDATA;
 681         }
 682
 683         chunk_size += (chunk_size & 1);
 684
 685         value = av_malloc(chunk_size + 1);
 686         if (!value) {
 687             av_log(s, AV_LOG_ERROR, "out of memory, unable to read INFO tag\n");
 688             return AVERROR(ENOMEM);
 689         }
 690
 691         AV_WL32(key, chunk_code);
 692
 693         if (avio_read(pb, value, chunk_size) != chunk_size) {
 694             av_free(value);
 695             av_log(s, AV_LOG_ERROR, "premature end of file while reading INFO tag\n");
 696             return AVERROR_INVALIDDATA;
 697         }
 698
 699         value[chunk_size] = 0;
 700
 701         av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
 702     }
 703
 704     return 0;
 705 }