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. */ 31const 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_NONE, 0 } 287}; 288 289const AVCodecTag ff_codec_wav_tags[] = { 290 { CODEC_ID_PCM_S16LE, 0x0001 }, 291 { CODEC_ID_PCM_U8, 0x0001 }, /* must come after s16le in this list */ 292 { CODEC_ID_PCM_S24LE, 0x0001 }, 293 { CODEC_ID_PCM_S32LE, 0x0001 }, 294 { CODEC_ID_ADPCM_MS, 0x0002 }, 295 { CODEC_ID_PCM_F32LE, 0x0003 }, 296 { CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */ 297 { CODEC_ID_PCM_ALAW, 0x0006 }, 298 { CODEC_ID_PCM_MULAW, 0x0007 }, 299 { CODEC_ID_WMAVOICE, 0x000A }, 300 { CODEC_ID_ADPCM_IMA_WAV, 0x0011 }, 301 { CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */ 302 { CODEC_ID_ADPCM_YAMAHA, 0x0020 }, 303 { CODEC_ID_TRUESPEECH, 0x0022 }, 304 { CODEC_ID_GSM_MS, 0x0031 }, 305 { CODEC_ID_ADPCM_G726, 0x0045 }, 306 { CODEC_ID_MP2, 0x0050 }, 307 { CODEC_ID_MP3, 0x0055 }, 308 { CODEC_ID_AMR_NB, 0x0057 }, 309 { CODEC_ID_AMR_WB, 0x0058 }, 310 { CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */ 311 { CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */ 312 { CODEC_ID_ADPCM_IMA_WAV, 0x0069 }, 313 { CODEC_ID_VOXWARE, 0x0075 }, 314 { CODEC_ID_AAC, 0x00ff }, 315 { CODEC_ID_SIPR, 0x0130 }, 316 { CODEC_ID_WMAV1, 0x0160 }, 317 { CODEC_ID_WMAV2, 0x0161 }, 318 { CODEC_ID_WMAPRO, 0x0162 }, 319 { CODEC_ID_WMALOSSLESS, 0x0163 }, 320 { CODEC_ID_ADPCM_CT, 0x0200 }, 321 { CODEC_ID_ATRAC3, 0x0270 }, 322 { CODEC_ID_ADPCM_G722, 0x028F }, 323 { CODEC_ID_IMC, 0x0401 }, 324 { CODEC_ID_GSM_MS, 0x1500 }, 325 { CODEC_ID_TRUESPEECH, 0x1501 }, 326 { CODEC_ID_AAC, 0x1600 }, /* ADTS AAC */ 327 { CODEC_ID_AAC_LATM, 0x1602 }, 328 { CODEC_ID_AC3, 0x2000 }, 329 { CODEC_ID_DTS, 0x2001 }, 330 { CODEC_ID_PCM_MULAW, 0x6c75 }, 331 { CODEC_ID_AAC, 0x706d }, 332 { CODEC_ID_AAC, 0x4143 }, 333 { CODEC_ID_SPEEX, 0xA109 }, 334 { CODEC_ID_FLAC, 0xF1AC }, 335 { CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' }, 336 { CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id? 337 338 /* FIXME: All of the IDs below are not 16 bit and thus illegal. */ 339 // for NuppelVideo (nuv.c) 340 { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') }, 341 { CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') }, 342 { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') }, 343 { CODEC_ID_NONE, 0 }, 344}; 345 346const AVMetadataConv ff_riff_info_conv[] = { 347 { "IART", "artist" }, 348 { "ICMT", "comment" }, 349 { "ICOP", "copyright" }, 350 { "ICRD", "date" }, 351 { "IGNR", "genre" }, 352 { "ILNG", "language" }, 353 { "INAM", "title" }, 354 { "IPRD", "album" }, 355 { "IPRT", "track" }, 356 { "ISFT", "encoder" }, 357 { "ITCH", "encoded_by"}, 358 { 0 }, 359}; 360 361const char ff_riff_tags[][5] = { 362 "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI", 363 "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD", 364 "IPRT", "ISBJ", "ISFT", "ISHP", "ISRC", "ISRF", "ITCH", 365 {0} 366}; 367 368#if CONFIG_MUXERS 369int64_t ff_start_tag(AVIOContext *pb, const char *tag) 370{ 371 ffio_wfourcc(pb, tag); 372 avio_wl32(pb, 0); 373 return avio_tell(pb); 374} 375 376void ff_end_tag(AVIOContext *pb, int64_t start) 377{ 378 int64_t pos; 379 380 pos = avio_tell(pb); 381 avio_seek(pb, start - 4, SEEK_SET); 382 avio_wl32(pb, (uint32_t)(pos - start)); 383 avio_seek(pb, pos, SEEK_SET); 384} 385 386/* WAVEFORMATEX header */ 387/* returns the size or -1 on error */ 388int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc) 389{ 390 int bps, blkalign, bytespersec; 391 int hdrsize = 18; 392 int waveformatextensible; 393 uint8_t temp[256]; 394 uint8_t *riff_extradata= temp; 395 uint8_t *riff_extradata_start= temp; 396 397 if(!enc->codec_tag || enc->codec_tag > 0xffff) 398 return -1; 399 waveformatextensible = (enc->channels > 2 && enc->channel_layout) 400 || enc->sample_rate > 48000 401 || av_get_bits_per_sample(enc->codec_id) > 16; 402 403 if (waveformatextensible) { 404 avio_wl16(pb, 0xfffe); 405 } else { 406 avio_wl16(pb, enc->codec_tag); 407 } 408 avio_wl16(pb, enc->channels); 409 avio_wl32(pb, enc->sample_rate); 410 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) { 411 bps = 0; 412 } else { 413 if (!(bps = av_get_bits_per_sample(enc->codec_id))) { 414 if (enc->bits_per_coded_sample) 415 bps = enc->bits_per_coded_sample; 416 else 417 bps = 16; // default to 16 418 } 419 } 420 if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){ 421 av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps); 422 } 423 424 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) { 425 blkalign = enc->frame_size; //this is wrong, but it seems many demuxers do not work if this is set correctly 426 //blkalign = 144 * enc->bit_rate/enc->sample_rate; 427 } else if (enc->codec_id == CODEC_ID_AC3) { 428 blkalign = 3840; //maximum bytes per frame 429 } else if (enc->block_align != 0) { /* specified by the codec */ 430 blkalign = enc->block_align; 431 } else 432 blkalign = bps * enc->channels / av_gcd(8, bps); 433 if (enc->codec_id == CODEC_ID_PCM_U8 || 434 enc->codec_id == CODEC_ID_PCM_S24LE || 435 enc->codec_id == CODEC_ID_PCM_S32LE || 436 enc->codec_id == CODEC_ID_PCM_F32LE || 437 enc->codec_id == CODEC_ID_PCM_F64LE || 438 enc->codec_id == CODEC_ID_PCM_S16LE) { 439 bytespersec = enc->sample_rate * blkalign; 440 } else { 441 bytespersec = enc->bit_rate / 8; 442 } 443 avio_wl32(pb, bytespersec); /* bytes per second */ 444 avio_wl16(pb, blkalign); /* block align */ 445 avio_wl16(pb, bps); /* bits per sample */ 446 if (enc->codec_id == CODEC_ID_MP3) { 447 hdrsize += 12; 448 bytestream_put_le16(&riff_extradata, 1); /* wID */ 449 bytestream_put_le32(&riff_extradata, 2); /* fdwFlags */ 450 bytestream_put_le16(&riff_extradata, 1152); /* nBlockSize */ 451 bytestream_put_le16(&riff_extradata, 1); /* nFramesPerBlock */ 452 bytestream_put_le16(&riff_extradata, 1393); /* nCodecDelay */ 453 } else if (enc->codec_id == CODEC_ID_MP2) { 454 hdrsize += 22; 455 bytestream_put_le16(&riff_extradata, 2); /* fwHeadLayer */ 456 bytestream_put_le32(&riff_extradata, enc->bit_rate); /* dwHeadBitrate */ 457 bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8); /* fwHeadMode */ 458 bytestream_put_le16(&riff_extradata, 0); /* fwHeadModeExt */ 459 bytestream_put_le16(&riff_extradata, 1); /* wHeadEmphasis */ 460 bytestream_put_le16(&riff_extradata, 16); /* fwHeadFlags */ 461 bytestream_put_le32(&riff_extradata, 0); /* dwPTSLow */ 462 bytestream_put_le32(&riff_extradata, 0); /* dwPTSHigh */ 463 } else if (enc->codec_id == CODEC_ID_GSM_MS || enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) { 464 hdrsize += 2; 465 bytestream_put_le16(&riff_extradata, enc->frame_size); /* wSamplesPerBlock */ 466 } else if(enc->extradata_size){ 467 riff_extradata_start= enc->extradata; 468 riff_extradata= enc->extradata + enc->extradata_size; 469 hdrsize += enc->extradata_size; 470 } 471 if(waveformatextensible) { /* write WAVEFORMATEXTENSIBLE extensions */ 472 hdrsize += 22; 473 avio_wl16(pb, riff_extradata - riff_extradata_start + 22); /* 22 is WAVEFORMATEXTENSIBLE size */ 474 avio_wl16(pb, enc->bits_per_coded_sample); /* ValidBitsPerSample || SamplesPerBlock || Reserved */ 475 avio_wl32(pb, enc->channel_layout); /* dwChannelMask */ 476 avio_wl32(pb, enc->codec_tag); /* GUID + next 3 */ 477 avio_wl32(pb, 0x00100000); 478 avio_wl32(pb, 0xAA000080); 479 avio_wl32(pb, 0x719B3800); 480 } else { 481 avio_wl16(pb, riff_extradata - riff_extradata_start); /* cbSize */ 482 } 483 avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start); 484 if(hdrsize&1){ 485 hdrsize++; 486 avio_w8(pb, 0); 487 } 488 489 return hdrsize; 490} 491 492/* BITMAPINFOHEADER header */ 493void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf) 494{ 495 avio_wl32(pb, 40 + enc->extradata_size); /* size */ 496 avio_wl32(pb, enc->width); 497 //We always store RGB TopDown 498 avio_wl32(pb, enc->codec_tag ? enc->height : -enc->height); 499 avio_wl16(pb, 1); /* planes */ 500 501 avio_wl16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */ 502 /* compression type */ 503 avio_wl32(pb, enc->codec_tag); 504 avio_wl32(pb, enc->width * enc->height * 3); 505 avio_wl32(pb, 0); 506 avio_wl32(pb, 0); 507 avio_wl32(pb, 0); 508 avio_wl32(pb, 0); 509 510 avio_write(pb, enc->extradata, enc->extradata_size); 511 512 if (!for_asf && enc->extradata_size & 1) 513 avio_w8(pb, 0); 514} 515#endif //CONFIG_MUXERS 516 517#if CONFIG_DEMUXERS 518/* We could be given one of the three possible structures here: 519 * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure 520 * is an expansion of the previous one with the fields added 521 * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and 522 * WAVEFORMATEX adds 'WORD cbSize' and basically makes itself 523 * an openended structure. 524 */ 525int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size) 526{ 527 int id; 528 529 id = avio_rl16(pb); 530 codec->codec_type = AVMEDIA_TYPE_AUDIO; 531 codec->codec_tag = id; 532 codec->channels = avio_rl16(pb); 533 codec->sample_rate = avio_rl32(pb); 534 codec->bit_rate = avio_rl32(pb) * 8; 535 codec->block_align = avio_rl16(pb); 536 if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */ 537 codec->bits_per_coded_sample = 8; 538 }else 539 codec->bits_per_coded_sample = avio_rl16(pb); 540 if (size >= 18) { /* We're obviously dealing with WAVEFORMATEX */ 541 int cbSize = avio_rl16(pb); /* cbSize */ 542 size -= 18; 543 cbSize = FFMIN(size, cbSize); 544 if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */ 545 codec->bits_per_coded_sample = avio_rl16(pb); 546 codec->channel_layout = avio_rl32(pb); /* dwChannelMask */ 547 id = avio_rl32(pb); /* 4 first bytes of GUID */ 548 avio_skip(pb, 12); /* skip end of GUID */ 549 cbSize -= 22; 550 size -= 22; 551 } 552 codec->extradata_size = cbSize; 553 if (cbSize > 0) { 554 av_free(codec->extradata); 555 codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); 556 if (!codec->extradata) 557 return AVERROR(ENOMEM); 558 avio_read(pb, codec->extradata, codec->extradata_size); 559 size -= cbSize; 560 } 561 562 /* It is possible for the chunk to contain garbage at the end */ 563 if (size > 0) 564 avio_skip(pb, size); 565 } 566 codec->codec_id = ff_wav_codec_get_id(id, codec->bits_per_coded_sample); 567 if (codec->codec_id == CODEC_ID_AAC_LATM) { 568 /* channels and sample_rate values are those prior to applying SBR and/or PS */ 569 codec->channels = 0; 570 codec->sample_rate = 0; 571 } 572 /* override bits_per_coded_sample for G.726 */ 573 if (codec->codec_id == CODEC_ID_ADPCM_G726) 574 codec->bits_per_coded_sample = codec->bit_rate / codec->sample_rate; 575 576 return 0; 577} 578 579 580enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps) 581{ 582 enum CodecID id; 583 id = ff_codec_get_id(ff_codec_wav_tags, tag); 584 if (id <= 0) 585 return id; 586 /* handle specific u8 codec */ 587 if (id == CODEC_ID_PCM_S16LE && bps == 8) 588 id = CODEC_ID_PCM_U8; 589 if (id == CODEC_ID_PCM_S16LE && bps == 24) 590 id = CODEC_ID_PCM_S24LE; 591 if (id == CODEC_ID_PCM_S16LE && bps == 32) 592 id = CODEC_ID_PCM_S32LE; 593 if (id == CODEC_ID_PCM_F32LE && bps == 64) 594 id = CODEC_ID_PCM_F64LE; 595 if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8) 596 id = CODEC_ID_PCM_ZORK; 597 return id; 598} 599 600int ff_get_bmp_header(AVIOContext *pb, AVStream *st) 601{ 602 int tag1; 603 avio_rl32(pb); /* size */ 604 st->codec->width = avio_rl32(pb); 605 st->codec->height = (int32_t)avio_rl32(pb); 606 avio_rl16(pb); /* planes */ 607 st->codec->bits_per_coded_sample= avio_rl16(pb); /* depth */ 608 tag1 = avio_rl32(pb); 609 avio_rl32(pb); /* ImageSize */ 610 avio_rl32(pb); /* XPelsPerMeter */ 611 avio_rl32(pb); /* YPelsPerMeter */ 612 avio_rl32(pb); /* ClrUsed */ 613 avio_rl32(pb); /* ClrImportant */ 614 return tag1; 615} 616#endif // CONFIG_DEMUXERS 617 618void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale) 619{ 620 int gcd; 621 622 *au_ssize= stream->block_align; 623 if(stream->frame_size && stream->sample_rate){ 624 *au_scale=stream->frame_size; 625 *au_rate= stream->sample_rate; 626 }else if(stream->codec_type == AVMEDIA_TYPE_VIDEO || 627 stream->codec_type == AVMEDIA_TYPE_DATA || 628 stream->codec_type == AVMEDIA_TYPE_SUBTITLE){ 629 *au_scale= stream->time_base.num; 630 *au_rate = stream->time_base.den; 631 }else{ 632 *au_scale= stream->block_align ? stream->block_align*8 : 8; 633 *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate; 634 } 635 gcd= av_gcd(*au_scale, *au_rate); 636 *au_scale /= gcd; 637 *au_rate /= gcd; 638} 639 640int ff_read_riff_info(AVFormatContext *s, int64_t size) 641{ 642 int64_t start, end, cur; 643 AVIOContext *pb = s->pb; 644 645 start = avio_tell(pb); 646 end = start + size; 647 648 while ((cur = avio_tell(pb)) >= 0 && cur <= end - 8 /* = tag + size */) { 649 uint32_t chunk_code; 650 int64_t chunk_size; 651 char key[5] = {0}; 652 char *value; 653 654 chunk_code = avio_rl32(pb); 655 chunk_size = avio_rl32(pb); 656 if (chunk_size > end || end - chunk_size < cur || chunk_size == UINT_MAX) { 657 av_log(s, AV_LOG_ERROR, "too big INFO subchunk\n"); 658 return AVERROR_INVALIDDATA; 659 } 660 661 chunk_size += (chunk_size & 1); 662 663 value = av_malloc(chunk_size + 1); 664 if (!value) { 665 av_log(s, AV_LOG_ERROR, "out of memory, unable to read INFO tag\n"); 666 return AVERROR(ENOMEM); 667 } 668 669 AV_WL32(key, chunk_code); 670 671 if (avio_read(pb, value, chunk_size) != chunk_size) { 672 av_freep(key); 673 av_freep(value); 674 av_log(s, AV_LOG_ERROR, "premature end of file while reading INFO tag\n"); 675 return AVERROR_INVALIDDATA; 676 } 677 678 value[chunk_size] = 0; 679 680 av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL); 681 } 682 683 return 0; 684} 685