libavformat/riff.c

   1 /*
   2  * RIFF common functions and data
   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/error.h"
  23 #include "libavutil/log.h"
  24 #include "libavcodec/avcodec.h"
  25 #include "avformat.h"
  26 #include "avio_internal.h"
  27 #include "riff.h"
  28 #include "libavcodec/bytestream.h"
  29
  30 /* Note: When encoding, the first matching tag is used, so order is
  31  * important if multiple tags are possible for a given codec. */
  32 const AVCodecTag ff_codec_bmp_tags[] = {
  33     { AV_CODEC_ID_H264,         MKTAG('H', '2', '6', '4') },
  34     { AV_CODEC_ID_H264,         MKTAG('h', '2', '6', '4') },
  35     { AV_CODEC_ID_H264,         MKTAG('X', '2', '6', '4') },
  36     { AV_CODEC_ID_H264,         MKTAG('x', '2', '6', '4') },
  37     { AV_CODEC_ID_H264,         MKTAG('a', 'v', 'c', '1') },
  38     { AV_CODEC_ID_H264,         MKTAG('D', 'A', 'V', 'C') },
  39     { AV_CODEC_ID_H264,         MKTAG('V', 'S', 'S', 'H') },
  40     { AV_CODEC_ID_H263,         MKTAG('H', '2', '6', '3') },
  41     { AV_CODEC_ID_H263,         MKTAG('X', '2', '6', '3') },
  42     { AV_CODEC_ID_H263,         MKTAG('T', '2', '6', '3') },
  43     { AV_CODEC_ID_H263,         MKTAG('L', '2', '6', '3') },
  44     { AV_CODEC_ID_H263,         MKTAG('V', 'X', '1', 'K') },
  45     { AV_CODEC_ID_H263,         MKTAG('Z', 'y', 'G', 'o') },
  46     { AV_CODEC_ID_H263,         MKTAG('M', '2', '6', '3') },
  47     { AV_CODEC_ID_H263P,        MKTAG('H', '2', '6', '3') },
  48     { AV_CODEC_ID_H263I,        MKTAG('I', '2', '6', '3') }, /* Intel H.263 */
  49     { AV_CODEC_ID_H261,         MKTAG('H', '2', '6', '1') },
  50     { AV_CODEC_ID_H263P,        MKTAG('U', '2', '6', '3') },
  51     { AV_CODEC_ID_H263P,        MKTAG('v', 'i', 'v', '1') },
  52     { AV_CODEC_ID_MPEG4,        MKTAG('F', 'M', 'P', '4') },
  53     { AV_CODEC_ID_MPEG4,        MKTAG('D', 'I', 'V', 'X') },
  54     { AV_CODEC_ID_MPEG4,        MKTAG('D', 'X', '5', '0') },
  55     { AV_CODEC_ID_MPEG4,        MKTAG('X', 'V', 'I', 'D') },
  56     { AV_CODEC_ID_MPEG4,        MKTAG('M', 'P', '4', 'S') },
  57     { AV_CODEC_ID_MPEG4,        MKTAG('M', '4', 'S', '2') },
  58     /* some broken AVIs use this */
  59     { AV_CODEC_ID_MPEG4,        MKTAG( 4 ,  0 ,  0 ,  0 ) },
  60     /* some broken AVIs use this */
  61     { AV_CODEC_ID_MPEG4,        MKTAG('Z', 'M', 'P', '4') },
  62     { AV_CODEC_ID_MPEG4,        MKTAG('D', 'I', 'V', '1') },
  63     { AV_CODEC_ID_MPEG4,        MKTAG('B', 'L', 'Z', '0') },
  64     { AV_CODEC_ID_MPEG4,        MKTAG('m', 'p', '4', 'v') },
  65     { AV_CODEC_ID_MPEG4,        MKTAG('U', 'M', 'P', '4') },
  66     { AV_CODEC_ID_MPEG4,        MKTAG('W', 'V', '1', 'F') },
  67     { AV_CODEC_ID_MPEG4,        MKTAG('S', 'E', 'D', 'G') },
  68     { AV_CODEC_ID_MPEG4,        MKTAG('R', 'M', 'P', '4') },
  69     { AV_CODEC_ID_MPEG4,        MKTAG('3', 'I', 'V', '2') },
  70     /* WaWv MPEG-4 Video Codec */
  71     { AV_CODEC_ID_MPEG4,        MKTAG('W', 'A', 'W', 'V') },
  72     { AV_CODEC_ID_MPEG4,        MKTAG('F', 'F', 'D', 'S') },
  73     { AV_CODEC_ID_MPEG4,        MKTAG('F', 'V', 'F', 'W') },
  74     { AV_CODEC_ID_MPEG4,        MKTAG('D', 'C', 'O', 'D') },
  75     { AV_CODEC_ID_MPEG4,        MKTAG('M', 'V', 'X', 'M') },
  76     { AV_CODEC_ID_MPEG4,        MKTAG('P', 'M', '4', 'V') },
  77     { AV_CODEC_ID_MPEG4,        MKTAG('S', 'M', 'P', '4') },
  78     { AV_CODEC_ID_MPEG4,        MKTAG('D', 'X', 'G', 'M') },
  79     { AV_CODEC_ID_MPEG4,        MKTAG('V', 'I', 'D', 'M') },
  80     { AV_CODEC_ID_MPEG4,        MKTAG('M', '4', 'T', '3') },
  81     { AV_CODEC_ID_MPEG4,        MKTAG('G', 'E', 'O', 'X') },
  82     /* flipped video */
  83     { AV_CODEC_ID_MPEG4,        MKTAG('H', 'D', 'X', '4') },
  84     { AV_CODEC_ID_MPEG4,        MKTAG('D', 'M', 'K', '2') },
  85     { AV_CODEC_ID_MPEG4,        MKTAG('D', 'I', 'G', 'I') },
  86     { AV_CODEC_ID_MPEG4,        MKTAG('I', 'N', 'M', 'C') },
  87     /* Ephv MPEG-4 */
  88     { AV_CODEC_ID_MPEG4,        MKTAG('E', 'P', 'H', 'V') },
  89     { AV_CODEC_ID_MPEG4,        MKTAG('E', 'M', '4', 'A') },
  90     /* Divio MPEG-4 */
  91     { AV_CODEC_ID_MPEG4,        MKTAG('M', '4', 'C', 'C') },
  92     { AV_CODEC_ID_MPEG4,        MKTAG('S', 'N', '4', '0') },
  93     { AV_CODEC_ID_MPEG4,        MKTAG('V', 'S', 'P', 'X') },
  94     { AV_CODEC_ID_MPEG4,        MKTAG('U', 'L', 'D', 'X') },
  95     { AV_CODEC_ID_MPEG4,        MKTAG('G', 'E', 'O', 'V') },
  96     /* Samsung SHR-6040 */
  97     { AV_CODEC_ID_MPEG4,        MKTAG('S', 'I', 'P', 'P') },
  98     { AV_CODEC_ID_MPEG4,        MKTAG('X', 'V', 'I', 'X') },
  99     { AV_CODEC_ID_MPEG4,        MKTAG('D', 'r', 'e', 'X') },
 100     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('M', 'P', '4', '3') },
 101     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '3') },
 102     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('M', 'P', 'G', '3') },
 103     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '5') },
 104     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '6') },
 105     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '4') },
 106     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('D', 'V', 'X', '3') },
 107     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('A', 'P', '4', '1') },
 108     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('C', 'O', 'L', '1') },
 109     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('C', 'O', 'L', '0') },
 110     { AV_CODEC_ID_MSMPEG4V2,    MKTAG('M', 'P', '4', '2') },
 111     { AV_CODEC_ID_MSMPEG4V2,    MKTAG('D', 'I', 'V', '2') },
 112     { AV_CODEC_ID_MSMPEG4V1,    MKTAG('M', 'P', 'G', '4') },
 113     { AV_CODEC_ID_MSMPEG4V1,    MKTAG('M', 'P', '4', '1') },
 114     { AV_CODEC_ID_WMV1,         MKTAG('W', 'M', 'V', '1') },
 115     { AV_CODEC_ID_WMV2,         MKTAG('W', 'M', 'V', '2') },
 116     { AV_CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 's', 'd') },
 117     { AV_CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'h', 'd') },
 118     { AV_CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'h', '1') },
 119     { AV_CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 's', 'l') },
 120     { AV_CODEC_ID_DVVIDEO,      MKTAG('d', 'v', '2', '5') },
 121     { AV_CODEC_ID_DVVIDEO,      MKTAG('d', 'v', '5', '0') },
 122     /* Canopus DV */
 123     { AV_CODEC_ID_DVVIDEO,      MKTAG('c', 'd', 'v', 'c') },
 124     /* Canopus DV */
 125     { AV_CODEC_ID_DVVIDEO,      MKTAG('C', 'D', 'V', 'H') },
 126     /* Canopus DV */
 127     { AV_CODEC_ID_DVVIDEO,      MKTAG('C', 'D', 'V', '5') },
 128     { AV_CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'c', ' ') },
 129     { AV_CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'c', 's') },
 130     { AV_CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'h', '1') },
 131     { AV_CODEC_ID_MPEG1VIDEO,   MKTAG('m', 'p', 'g', '1') },
 132     { AV_CODEC_ID_MPEG1VIDEO,   MKTAG('m', 'p', 'g', '2') },
 133     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG('m', 'p', 'g', '2') },
 134     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG('M', 'P', 'E', 'G') },
 135     { AV_CODEC_ID_MPEG1VIDEO,   MKTAG('P', 'I', 'M', '1') },
 136     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG('P', 'I', 'M', '2') },
 137     { AV_CODEC_ID_MPEG1VIDEO,   MKTAG('V', 'C', 'R', '2') },
 138     { AV_CODEC_ID_MPEG1VIDEO,   MKTAG( 1 ,  0 ,  0 ,  16) },
 139     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG( 2 ,  0 ,  0 ,  16) },
 140     { AV_CODEC_ID_MPEG4,        MKTAG( 4 ,  0 ,  0 ,  16) },
 141     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG('D', 'V', 'R', ' ') },
 142     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG('M', 'M', 'E', 'S') },
 143     /* Lead MPEG-2 in AVI */
 144     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG('L', 'M', 'P', '2') },
 145     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG('s', 'l', 'i', 'f') },
 146     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG('E', 'M', '2', 'V') },
 147     /* Matrox MPEG-2 intra-only */
 148     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG('M', '7', '0', '1') },
 149     { AV_CODEC_ID_MPEG2VIDEO,   MKTAG('m', 'p', 'g', 'v') },
 150     { AV_CODEC_ID_MJPEG,        MKTAG('M', 'J', 'P', 'G') },
 151     { AV_CODEC_ID_MJPEG,        MKTAG('L', 'J', 'P', 'G') },
 152     { AV_CODEC_ID_MJPEG,        MKTAG('d', 'm', 'b', '1') },
 153     { AV_CODEC_ID_MJPEG,        MKTAG('m', 'j', 'p', 'a') },
 154     { AV_CODEC_ID_LJPEG,        MKTAG('L', 'J', 'P', 'G') },
 155     /* Pegasus lossless JPEG */
 156     { AV_CODEC_ID_MJPEG,        MKTAG('J', 'P', 'G', 'L') },
 157     /* JPEG-LS custom FOURCC for AVI - encoder */
 158     { AV_CODEC_ID_JPEGLS,       MKTAG('M', 'J', 'L', 'S') },
 159     { AV_CODEC_ID_JPEGLS,       MKTAG('M', 'J', 'P', 'G') },
 160     /* JPEG-LS custom FOURCC for AVI - decoder */
 161     { AV_CODEC_ID_MJPEG,        MKTAG('M', 'J', 'L', 'S') },
 162     { AV_CODEC_ID_MJPEG,        MKTAG('j', 'p', 'e', 'g') },
 163     { AV_CODEC_ID_MJPEG,        MKTAG('I', 'J', 'P', 'G') },
 164     { AV_CODEC_ID_MJPEG,        MKTAG('A', 'V', 'R', 'n') },
 165     { AV_CODEC_ID_MJPEG,        MKTAG('A', 'C', 'D', 'V') },
 166     { AV_CODEC_ID_MJPEG,        MKTAG('Q', 'I', 'V', 'G') },
 167     /* SL M-JPEG */
 168     { AV_CODEC_ID_MJPEG,        MKTAG('S', 'L', 'M', 'J') },
 169     /* Creative Webcam JPEG */
 170     { AV_CODEC_ID_MJPEG,        MKTAG('C', 'J', 'P', 'G') },
 171     /* Intel JPEG Library Video Codec */
 172     { AV_CODEC_ID_MJPEG,        MKTAG('I', 'J', 'L', 'V') },
 173     /* Midvid JPEG Video Codec */
 174     { AV_CODEC_ID_MJPEG,        MKTAG('M', 'V', 'J', 'P') },
 175     { AV_CODEC_ID_MJPEG,        MKTAG('A', 'V', 'I', '1') },
 176     { AV_CODEC_ID_MJPEG,        MKTAG('A', 'V', 'I', '2') },
 177     { AV_CODEC_ID_MJPEG,        MKTAG('M', 'T', 'S', 'J') },
 178     /* Paradigm Matrix M-JPEG Codec */
 179     { AV_CODEC_ID_MJPEG,        MKTAG('Z', 'J', 'P', 'G') },
 180     { AV_CODEC_ID_MJPEG,        MKTAG('M', 'M', 'J', 'P') },
 181     { AV_CODEC_ID_HUFFYUV,      MKTAG('H', 'F', 'Y', 'U') },
 182     { AV_CODEC_ID_FFVHUFF,      MKTAG('F', 'F', 'V', 'H') },
 183     { AV_CODEC_ID_CYUV,         MKTAG('C', 'Y', 'U', 'V') },
 184     { AV_CODEC_ID_RAWVIDEO,     MKTAG( 0 ,  0 ,  0 ,  0 ) },
 185     { AV_CODEC_ID_RAWVIDEO,     MKTAG( 3 ,  0 ,  0 ,  0 ) },
 186     { AV_CODEC_ID_RAWVIDEO,     MKTAG('I', '4', '2', '0') },
 187     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', 'U', 'Y', '2') },
 188     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '2', '2') },
 189     { AV_CODEC_ID_RAWVIDEO,     MKTAG('V', '4', '2', '2') },
 190     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', 'U', 'N', 'V') },
 191     { AV_CODEC_ID_RAWVIDEO,     MKTAG('U', 'Y', 'N', 'V') },
 192     { AV_CODEC_ID_RAWVIDEO,     MKTAG('U', 'Y', 'N', 'Y') },
 193     { AV_CODEC_ID_RAWVIDEO,     MKTAG('u', 'y', 'v', '1') },
 194     { AV_CODEC_ID_RAWVIDEO,     MKTAG('2', 'V', 'u', '1') },
 195     { AV_CODEC_ID_RAWVIDEO,     MKTAG('2', 'v', 'u', 'y') },
 196     { AV_CODEC_ID_RAWVIDEO,     MKTAG('y', 'u', 'v', 's') },
 197     { AV_CODEC_ID_RAWVIDEO,     MKTAG('y', 'u', 'v', '2') },
 198     { AV_CODEC_ID_RAWVIDEO,     MKTAG('P', '4', '2', '2') },
 199     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', '1', '2') },
 200     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', '1', '6') },
 201     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', '2', '4') },
 202     { AV_CODEC_ID_RAWVIDEO,     MKTAG('U', 'Y', 'V', 'Y') },
 203     { AV_CODEC_ID_RAWVIDEO,     MKTAG('V', 'Y', 'U', 'Y') },
 204     { AV_CODEC_ID_RAWVIDEO,     MKTAG('I', 'Y', 'U', 'V') },
 205     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', '8', '0', '0') },
 206     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', '8', ' ', ' ') },
 207     { AV_CODEC_ID_RAWVIDEO,     MKTAG('H', 'D', 'Y', 'C') },
 208     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', 'U', '9') },
 209     /* SoftLab-NSK VideoTizer */
 210     { AV_CODEC_ID_RAWVIDEO,     MKTAG('V', 'D', 'T', 'Z') },
 211     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '1', '1') },
 212     { AV_CODEC_ID_RAWVIDEO,     MKTAG('N', 'V', '1', '2') },
 213     { AV_CODEC_ID_RAWVIDEO,     MKTAG('N', 'V', '2', '1') },
 214     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '1', 'B') },
 215     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '2', 'B') },
 216     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', 'U', 'V', '9') },
 217     { AV_CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', 'U', '9') },
 218     { AV_CODEC_ID_RAWVIDEO,     MKTAG('a', 'u', 'v', '2') },
 219     { AV_CODEC_ID_FRWU,         MKTAG('F', 'R', 'W', 'U') },
 220     { AV_CODEC_ID_R10K,         MKTAG('R', '1', '0', 'k') },
 221     { AV_CODEC_ID_R210,         MKTAG('r', '2', '1', '0') },
 222     { AV_CODEC_ID_V210,         MKTAG('v', '2', '1', '0') },
 223     { AV_CODEC_ID_V410,         MKTAG('v', '4', '1', '0') },
 224     { AV_CODEC_ID_INDEO3,       MKTAG('I', 'V', '3', '1') },
 225     { AV_CODEC_ID_INDEO3,       MKTAG('I', 'V', '3', '2') },
 226     { AV_CODEC_ID_INDEO4,       MKTAG('I', 'V', '4', '1') },
 227     { AV_CODEC_ID_INDEO5,       MKTAG('I', 'V', '5', '0') },
 228     { AV_CODEC_ID_VP3,          MKTAG('V', 'P', '3', '1') },
 229     { AV_CODEC_ID_VP3,          MKTAG('V', 'P', '3', '0') },
 230     { AV_CODEC_ID_VP5,          MKTAG('V', 'P', '5', '0') },
 231     { AV_CODEC_ID_VP6,          MKTAG('V', 'P', '6', '0') },
 232     { AV_CODEC_ID_VP6,          MKTAG('V', 'P', '6', '1') },
 233     { AV_CODEC_ID_VP6,          MKTAG('V', 'P', '6', '2') },
 234     { AV_CODEC_ID_VP6F,         MKTAG('V', 'P', '6', 'F') },
 235     { AV_CODEC_ID_VP6F,         MKTAG('F', 'L', 'V', '4') },
 236     { AV_CODEC_ID_VP8,          MKTAG('V', 'P', '8', '0') },
 237     { AV_CODEC_ID_ASV1,         MKTAG('A', 'S', 'V', '1') },
 238     { AV_CODEC_ID_ASV2,         MKTAG('A', 'S', 'V', '2') },
 239     { AV_CODEC_ID_VCR1,         MKTAG('V', 'C', 'R', '1') },
 240     { AV_CODEC_ID_FFV1,         MKTAG('F', 'F', 'V', '1') },
 241     { AV_CODEC_ID_XAN_WC4,      MKTAG('X', 'x', 'a', 'n') },
 242     { AV_CODEC_ID_MIMIC,        MKTAG('L', 'M', '2', '0') },
 243     { AV_CODEC_ID_MSRLE,        MKTAG('m', 'r', 'l', 'e') },
 244     { AV_CODEC_ID_MSRLE,        MKTAG( 1 ,  0 ,  0 ,  0 ) },
 245     { AV_CODEC_ID_MSRLE,        MKTAG( 2 ,  0 ,  0 ,  0 ) },
 246     { AV_CODEC_ID_MSVIDEO1,     MKTAG('M', 'S', 'V', 'C') },
 247     { AV_CODEC_ID_MSVIDEO1,     MKTAG('m', 's', 'v', 'c') },
 248     { AV_CODEC_ID_MSVIDEO1,     MKTAG('C', 'R', 'A', 'M') },
 249     { AV_CODEC_ID_MSVIDEO1,     MKTAG('c', 'r', 'a', 'm') },
 250     { AV_CODEC_ID_MSVIDEO1,     MKTAG('W', 'H', 'A', 'M') },
 251     { AV_CODEC_ID_MSVIDEO1,     MKTAG('w', 'h', 'a', 'm') },
 252     { AV_CODEC_ID_CINEPAK,      MKTAG('c', 'v', 'i', 'd') },
 253     { AV_CODEC_ID_TRUEMOTION1,  MKTAG('D', 'U', 'C', 'K') },
 254     { AV_CODEC_ID_TRUEMOTION1,  MKTAG('P', 'V', 'E', 'Z') },
 255     { AV_CODEC_ID_MSZH,         MKTAG('M', 'S', 'Z', 'H') },
 256     { AV_CODEC_ID_ZLIB,         MKTAG('Z', 'L', 'I', 'B') },
 257     { AV_CODEC_ID_4XM,          MKTAG('4', 'X', 'M', 'V') },
 258     { AV_CODEC_ID_FLV1,         MKTAG('F', 'L', 'V', '1') },
 259     { AV_CODEC_ID_FLASHSV,      MKTAG('F', 'S', 'V', '1') },
 260     { AV_CODEC_ID_SVQ1,         MKTAG('s', 'v', 'q', '1') },
 261     { AV_CODEC_ID_TSCC,         MKTAG('t', 's', 'c', 'c') },
 262     { AV_CODEC_ID_ULTI,         MKTAG('U', 'L', 'T', 'I') },
 263     { AV_CODEC_ID_VIXL,         MKTAG('V', 'I', 'X', 'L') },
 264     { AV_CODEC_ID_QPEG,         MKTAG('Q', 'P', 'E', 'G') },
 265     { AV_CODEC_ID_QPEG,         MKTAG('Q', '1', '.', '0') },
 266     { AV_CODEC_ID_QPEG,         MKTAG('Q', '1', '.', '1') },
 267     { AV_CODEC_ID_WMV3,         MKTAG('W', 'M', 'V', '3') },
 268     { AV_CODEC_ID_WMV3IMAGE,    MKTAG('W', 'M', 'V', 'P') },
 269     { AV_CODEC_ID_VC1,          MKTAG('W', 'V', 'C', '1') },
 270     { AV_CODEC_ID_VC1,          MKTAG('W', 'M', 'V', 'A') },
 271     { AV_CODEC_ID_VC1IMAGE,     MKTAG('W', 'V', 'P', '2') },
 272     { AV_CODEC_ID_LOCO,         MKTAG('L', 'O', 'C', 'O') },
 273     { AV_CODEC_ID_WNV1,         MKTAG('W', 'N', 'V', '1') },
 274     { AV_CODEC_ID_AASC,         MKTAG('A', 'A', 'S', 'C') },
 275     { AV_CODEC_ID_INDEO2,       MKTAG('R', 'T', '2', '1') },
 276     { AV_CODEC_ID_FRAPS,        MKTAG('F', 'P', 'S', '1') },
 277     { AV_CODEC_ID_THEORA,       MKTAG('t', 'h', 'e', 'o') },
 278     { AV_CODEC_ID_TRUEMOTION2,  MKTAG('T', 'M', '2', '0') },
 279     { AV_CODEC_ID_CSCD,         MKTAG('C', 'S', 'C', 'D') },
 280     { AV_CODEC_ID_ZMBV,         MKTAG('Z', 'M', 'B', 'V') },
 281     { AV_CODEC_ID_KMVC,         MKTAG('K', 'M', 'V', 'C') },
 282     { AV_CODEC_ID_CAVS,         MKTAG('C', 'A', 'V', 'S') },
 283     { AV_CODEC_ID_JPEG2000,     MKTAG('m', 'j', 'p', '2') },
 284     { AV_CODEC_ID_JPEG2000,     MKTAG('M', 'J', '2', 'C') },
 285     { AV_CODEC_ID_JPEG2000,     MKTAG('L', 'J', '2', 'C') },
 286     { AV_CODEC_ID_JPEG2000,     MKTAG('L', 'J', '2', 'K') },
 287     { AV_CODEC_ID_VMNC,         MKTAG('V', 'M', 'n', 'c') },
 288     { AV_CODEC_ID_TARGA,        MKTAG('t', 'g', 'a', ' ') },
 289     { AV_CODEC_ID_PNG,          MKTAG('M', 'P', 'N', 'G') },
 290     { AV_CODEC_ID_PNG,          MKTAG('P', 'N', 'G', '1') },
 291     { AV_CODEC_ID_CLJR,         MKTAG('C', 'L', 'J', 'R') },
 292     { AV_CODEC_ID_DIRAC,        MKTAG('d', 'r', 'a', 'c') },
 293     { AV_CODEC_ID_RPZA,         MKTAG('a', 'z', 'p', 'r') },
 294     { AV_CODEC_ID_RPZA,         MKTAG('R', 'P', 'Z', 'A') },
 295     { AV_CODEC_ID_RPZA,         MKTAG('r', 'p', 'z', 'a') },
 296     { AV_CODEC_ID_SP5X,         MKTAG('S', 'P', '5', '4') },
 297     { AV_CODEC_ID_AURA,         MKTAG('A', 'U', 'R', 'A') },
 298     { AV_CODEC_ID_AURA2,        MKTAG('A', 'U', 'R', '2') },
 299     { AV_CODEC_ID_DPX,          MKTAG('d', 'p', 'x', ' ') },
 300     { AV_CODEC_ID_KGV1,         MKTAG('K', 'G', 'V', '1') },
 301     { AV_CODEC_ID_LAGARITH,     MKTAG('L', 'A', 'G', 'S') },
 302     { AV_CODEC_ID_UTVIDEO,      MKTAG('U', 'L', 'R', 'A') },
 303     { AV_CODEC_ID_UTVIDEO,      MKTAG('U', 'L', 'R', 'G') },
 304     { AV_CODEC_ID_UTVIDEO,      MKTAG('U', 'L', 'Y', '0') },
 305     { AV_CODEC_ID_UTVIDEO,      MKTAG('U', 'L', 'Y', '2') },
 306     { AV_CODEC_ID_UTVIDEO,      MKTAG('U', 'L', 'H', '0') },
 307     { AV_CODEC_ID_UTVIDEO,      MKTAG('U', 'L', 'H', '2') },
 308     { AV_CODEC_ID_VBLE,         MKTAG('V', 'B', 'L', 'E') },
 309     { AV_CODEC_ID_DXTORY,       MKTAG('x', 't', 'o', 'r') },
 310     { AV_CODEC_ID_ZEROCODEC,    MKTAG('Z', 'E', 'C', 'O') },
 311     { AV_CODEC_ID_MSS1,         MKTAG('M', 'S', 'S', '1') },
 312     { AV_CODEC_ID_MSA1,         MKTAG('M', 'S', 'A', '1') },
 313     { AV_CODEC_ID_TSCC2,        MKTAG('T', 'S', 'C', '2') },
 314     { AV_CODEC_ID_MTS2,         MKTAG('M', 'T', 'S', '2') },
 315     { AV_CODEC_ID_CLLC,         MKTAG('C', 'L', 'L', 'C') },
 316     { AV_CODEC_ID_MSS2,         MKTAG('M', 'S', 'S', '2') },
 317     { AV_CODEC_ID_SVQ3,         MKTAG('S', 'V', 'Q', '3') },
 318     { AV_CODEC_ID_G2M,          MKTAG('G', '2', 'M', '2') },
 319     { AV_CODEC_ID_G2M,          MKTAG('G', '2', 'M', '3') },
 320     { AV_CODEC_ID_G2M,          MKTAG('G', '2', 'M', '4') },
 321     { AV_CODEC_ID_NONE,         0 }
 322 };
 323
 324 const AVCodecTag ff_codec_wav_tags[] = {
 325     { AV_CODEC_ID_PCM_S16LE,       0x0001 },
 326     /* must come after s16le in this list */
 327     { AV_CODEC_ID_PCM_U8,          0x0001 },
 328     { AV_CODEC_ID_PCM_S24LE,       0x0001 },
 329     { AV_CODEC_ID_PCM_S32LE,       0x0001 },
 330     { AV_CODEC_ID_ADPCM_MS,        0x0002 },
 331     { AV_CODEC_ID_PCM_F32LE,       0x0003 },
 332     /* must come after f32le in this list */
 333     { AV_CODEC_ID_PCM_F64LE,       0x0003 },
 334     { AV_CODEC_ID_PCM_ALAW,        0x0006 },
 335     { AV_CODEC_ID_PCM_MULAW,       0x0007 },
 336     { AV_CODEC_ID_WMAVOICE,        0x000A },
 337     { AV_CODEC_ID_ADPCM_IMA_WAV,   0x0011 },
 338     /* must come after adpcm_ima_wav in this list */
 339     { AV_CODEC_ID_PCM_ZORK,        0x0011 },
 340     { AV_CODEC_ID_ADPCM_YAMAHA,    0x0020 },
 341     { AV_CODEC_ID_TRUESPEECH,      0x0022 },
 342     { AV_CODEC_ID_GSM_MS,          0x0031 },
 343     { AV_CODEC_ID_ADPCM_G726,      0x0045 },
 344     { AV_CODEC_ID_MP2,             0x0050 },
 345     { AV_CODEC_ID_MP3,             0x0055 },
 346     { AV_CODEC_ID_AMR_NB,          0x0057 },
 347     { AV_CODEC_ID_AMR_WB,          0x0058 },
 348     /* rogue format number */
 349     { AV_CODEC_ID_ADPCM_IMA_DK4,   0x0061 },
 350     /* rogue format number */
 351     { AV_CODEC_ID_ADPCM_IMA_DK3,   0x0062 },
 352     { AV_CODEC_ID_ADPCM_IMA_WAV,   0x0069 },
 353     { AV_CODEC_ID_VOXWARE,         0x0075 },
 354     { AV_CODEC_ID_AAC,             0x00ff },
 355     { AV_CODEC_ID_SIPR,            0x0130 },
 356     { AV_CODEC_ID_WMAV1,           0x0160 },
 357     { AV_CODEC_ID_WMAV2,           0x0161 },
 358     { AV_CODEC_ID_WMAPRO,          0x0162 },
 359     { AV_CODEC_ID_WMALOSSLESS,     0x0163 },
 360     { AV_CODEC_ID_ADPCM_CT,        0x0200 },
 361     { AV_CODEC_ID_ATRAC3,          0x0270 },
 362     { AV_CODEC_ID_ADPCM_G722,      0x028F },
 363     { AV_CODEC_ID_IMC,             0x0401 },
 364     { AV_CODEC_ID_IAC,             0x0402 },
 365     { AV_CODEC_ID_GSM_MS,          0x1500 },
 366     { AV_CODEC_ID_TRUESPEECH,      0x1501 },
 367     /* ADTS AAC */
 368     { AV_CODEC_ID_AAC,             0x1600 },
 369     { AV_CODEC_ID_AAC_LATM,        0x1602 },
 370     { AV_CODEC_ID_AC3,             0x2000 },
 371     { AV_CODEC_ID_DTS,             0x2001 },
 372     { AV_CODEC_ID_PCM_MULAW,       0x6c75 },
 373     { AV_CODEC_ID_AAC,             0x706d },
 374     { AV_CODEC_ID_AAC,             0x4143 },
 375     { AV_CODEC_ID_SPEEX,           0xA109 },
 376     { AV_CODEC_ID_FLAC,            0xF1AC },
 377     { AV_CODEC_ID_ADPCM_SWF,       ('S' << 8) + 'F' },
 378     /* HACK/FIXME: Does Vorbis in WAV/AVI have an (in)official ID? */
 379     { AV_CODEC_ID_VORBIS,          ('V' << 8) + 'o' },
 380     { AV_CODEC_ID_NONE,      0 },
 381 };
 382
 383 const AVCodecGuid ff_codec_wav_guids[] = {
 384     { AV_CODEC_ID_AC3,      { 0x2C, 0x80, 0x6D, 0xE0, 0x46, 0xDB, 0xCF, 0x11, 0xB4, 0xD1, 0x00, 0x80, 0x5F, 0x6C, 0xBB, 0xEA } },
 385     { AV_CODEC_ID_ATRAC3P,  { 0xBF, 0xAA, 0x23, 0xE9, 0x58, 0xCB, 0x71, 0x44, 0xA1, 0x19, 0xFF, 0xFA, 0x01, 0xE4, 0xCE, 0x62 } },
 386     { AV_CODEC_ID_EAC3,     { 0xAF, 0x87, 0xFB, 0xA7, 0x02, 0x2D, 0xFB, 0x42, 0xA4, 0xD4, 0x05, 0xCD, 0x93, 0x84, 0x3B, 0xDD } },
 387     { AV_CODEC_ID_MP2,      { 0x2B, 0x80, 0x6D, 0xE0, 0x46, 0xDB, 0xCF, 0x11, 0xB4, 0xD1, 0x00, 0x80, 0x5F, 0x6C, 0xBB, 0xEA } },
 388     { AV_CODEC_ID_NONE }
 389 };
 390
 391 const AVMetadataConv ff_riff_info_conv[] = {
 392     { "IART", "artist"     },
 393     { "ICMT", "comment"    },
 394     { "ICOP", "copyright"  },
 395     { "ICRD", "date"       },
 396     { "IGNR", "genre"      },
 397     { "ILNG", "language"   },
 398     { "INAM", "title"      },
 399     { "IPRD", "album"      },
 400     { "IPRT", "track"      },
 401     { "ISFT", "encoder"    },
 402     { "ITCH", "encoded_by" },
 403     { 0 },
 404 };
 405
 406 enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid)
 407 {
 408     int i;
 409     for (i = 0; guids[i].id != AV_CODEC_ID_NONE; i++)
 410         if (!ff_guidcmp(guids[i].guid, guid))
 411             return guids[i].id;
 412     return AV_CODEC_ID_NONE;
 413 }
 414
 415 const struct AVCodecTag *avformat_get_riff_video_tags(void)
 416 {
 417     return ff_codec_bmp_tags;
 418 }
 419
 420 const struct AVCodecTag *avformat_get_riff_audio_tags(void)
 421 {
 422     return ff_codec_wav_tags;
 423 }
 424
 425 #if CONFIG_DEMUXERS
 426 /* We could be given one of the three possible structures here:
 427  * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
 428  * is an expansion of the previous one with the fields added
 429  * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
 430  * WAVEFORMATEX adds 'WORD  cbSize' and basically makes itself
 431  * an openended structure.
 432  */
 433
 434 static void parse_waveformatex(AVIOContext *pb, AVCodecContext *c)
 435 {
 436     ff_asf_guid subformat;
 437     c->bits_per_coded_sample = avio_rl16(pb);
 438     c->channel_layout        = avio_rl32(pb); /* dwChannelMask */
 439
 440     ff_get_guid(pb, &subformat);
 441     if (!memcmp(subformat + 4,
 442                 (const uint8_t[]){ FF_MEDIASUBTYPE_BASE_GUID }, 12)) {
 443         c->codec_tag = AV_RL32(subformat);
 444         c->codec_id  = ff_wav_codec_get_id(c->codec_tag,
 445                                            c->bits_per_coded_sample);
 446     } else {
 447         c->codec_id = ff_codec_guid_get_id(ff_codec_wav_guids, subformat);
 448         if (!c->codec_id)
 449             av_log(c, AV_LOG_WARNING,
 450                    "unknown subformat:"FF_PRI_GUID"\n",
 451                    FF_ARG_GUID(subformat));
 452     }
 453 }
 454
 455 int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
 456 {
 457     int id;
 458
 459     id                 = avio_rl16(pb);
 460     codec->codec_type  = AVMEDIA_TYPE_AUDIO;
 461     codec->channels    = avio_rl16(pb);
 462     codec->sample_rate = avio_rl32(pb);
 463     codec->bit_rate    = avio_rl32(pb) * 8;
 464     codec->block_align = avio_rl16(pb);
 465     if (size == 14) {  /* We're dealing with plain vanilla WAVEFORMAT */
 466         codec->bits_per_coded_sample = 8;
 467     } else
 468         codec->bits_per_coded_sample = avio_rl16(pb);
 469     if (id == 0xFFFE) {
 470         codec->codec_tag = 0;
 471     } else {
 472         codec->codec_tag = id;
 473         codec->codec_id  = ff_wav_codec_get_id(id,
 474                                                codec->bits_per_coded_sample);
 475     }
 476     if (size >= 18) {  /* We're obviously dealing with WAVEFORMATEX */
 477         int cbSize = avio_rl16(pb); /* cbSize */
 478         size  -= 18;
 479         cbSize = FFMIN(size, cbSize);
 480         if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */
 481             parse_waveformatex(pb, codec);
 482             cbSize -= 22;
 483             size   -= 22;
 484         }
 485         codec->extradata_size = cbSize;
 486         if (cbSize > 0) {
 487             av_free(codec->extradata);
 488             codec->extradata = av_mallocz(codec->extradata_size +
 489                                           FF_INPUT_BUFFER_PADDING_SIZE);
 490             if (!codec->extradata)
 491                 return AVERROR(ENOMEM);
 492             avio_read(pb, codec->extradata, codec->extradata_size);
 493             size -= cbSize;
 494         }
 495
 496         /* It is possible for the chunk to contain garbage at the end */
 497         if (size > 0)
 498             avio_skip(pb, size);
 499     }
 500     if (codec->codec_id == AV_CODEC_ID_AAC_LATM) {
 501         /* Channels and sample_rate values are those prior to applying SBR
 502          * and/or PS. */
 503         codec->channels    = 0;
 504         codec->sample_rate = 0;
 505     }
 506     /* override bits_per_coded_sample for G.726 */
 507     if (codec->codec_id == AV_CODEC_ID_ADPCM_G726)
 508         codec->bits_per_coded_sample = codec->bit_rate / codec->sample_rate;
 509
 510     return 0;
 511 }
 512
 513 enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps)
 514 {
 515     enum AVCodecID id;
 516     id = ff_codec_get_id(ff_codec_wav_tags, tag);
 517     if (id <= 0)
 518         return id;
 519
 520     if (id == AV_CODEC_ID_PCM_S16LE)
 521         id = ff_get_pcm_codec_id(bps, 0, 0, ~1);
 522     else if (id == AV_CODEC_ID_PCM_F32LE)
 523         id = ff_get_pcm_codec_id(bps, 1, 0,  0);
 524
 525     if (id == AV_CODEC_ID_ADPCM_IMA_WAV && bps == 8)
 526         id = AV_CODEC_ID_PCM_ZORK;
 527     return id;
 528 }
 529
 530 int ff_get_bmp_header(AVIOContext *pb, AVStream *st)
 531 {
 532     int tag1;
 533     avio_rl32(pb); /* size */
 534     st->codec->width  = avio_rl32(pb);
 535     st->codec->height = (int32_t)avio_rl32(pb);
 536     avio_rl16(pb); /* planes */
 537     st->codec->bits_per_coded_sample = avio_rl16(pb); /* depth */
 538     tag1                             = avio_rl32(pb);
 539     avio_rl32(pb); /* ImageSize */
 540     avio_rl32(pb); /* XPelsPerMeter */
 541     avio_rl32(pb); /* YPelsPerMeter */
 542     avio_rl32(pb); /* ClrUsed */
 543     avio_rl32(pb); /* ClrImportant */
 544     return tag1;
 545 }
 546
 547 int ff_read_riff_info(AVFormatContext *s, int64_t size)
 548 {
 549     int64_t start, end, cur;
 550     AVIOContext *pb = s->pb;
 551
 552     start = avio_tell(pb);
 553     end   = start + size;
 554
 555     while ((cur = avio_tell(pb)) >= 0 &&
 556            cur <= end - 8 /* = tag + size */) {
 557         uint32_t chunk_code;
 558         int64_t chunk_size;
 559         char key[5] = { 0 };
 560         char *value;
 561
 562         chunk_code = avio_rl32(pb);
 563         chunk_size = avio_rl32(pb);
 564
 565         if (chunk_size > end ||
 566             end - chunk_size < cur ||
 567             chunk_size == UINT_MAX) {
 568             av_log(s, AV_LOG_WARNING, "too big INFO subchunk\n");
 569             break;
 570         }
 571
 572         chunk_size += (chunk_size & 1);
 573
 574         if (!chunk_code) {
 575             if (chunk_size)
 576                 avio_skip(pb, chunk_size);
 577             else if (pb->eof_reached) {
 578                 av_log(s, AV_LOG_WARNING, "truncated file\n");
 579                 return AVERROR_EOF;
 580             }
 581             continue;
 582         }
 583
 584         value = av_malloc(chunk_size + 1);
 585         if (!value) {
 586             av_log(s, AV_LOG_ERROR,
 587                    "out of memory, unable to read INFO tag\n");
 588             return AVERROR(ENOMEM);
 589         }
 590
 591         AV_WL32(key, chunk_code);
 592
 593         if (avio_read(pb, value, chunk_size) != chunk_size) {
 594             av_free(value);
 595             av_log(s, AV_LOG_WARNING,
 596                    "premature end of file while reading INFO tag\n");
 597             break;
 598         }
 599
 600         value[chunk_size] = 0;
 601
 602         av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
 603     }
 604
 605     return 0;
 606 }
 607 #endif /* CONFIG_DEMUXERS */