1/* 2 * RIFF codec tags 3 * Copyright (c) 2000 Fabrice Bellard 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22#include "libavcodec/avcodec.h" 23#include "avformat.h" 24#include "riff.h" 25 26/* Note: when encoding, the first matching tag is used, so order is 27 important if multiple tags possible for a given codec. */ 28const AVCodecTag codec_bmp_tags[] = { 29 { CODEC_ID_H264, MKTAG('H', '2', '6', '4') }, 30 { CODEC_ID_H264, MKTAG('h', '2', '6', '4') }, 31 { CODEC_ID_H264, MKTAG('X', '2', '6', '4') }, 32 { CODEC_ID_H264, MKTAG('x', '2', '6', '4') }, 33 { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, 34 { CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') }, 35 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') }, 36 { CODEC_ID_H263, MKTAG('X', '2', '6', '3') }, 37 { CODEC_ID_H263, MKTAG('T', '2', '6', '3') }, 38 { CODEC_ID_H263, MKTAG('L', '2', '6', '3') }, 39 { CODEC_ID_H263, MKTAG('V', 'X', '1', 'K') }, 40 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') }, 41 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */ 42 { CODEC_ID_H261, MKTAG('H', '2', '6', '1') }, 43 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') }, 44 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') }, 45 { CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4') }, 46 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, 47 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0') }, 48 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') }, 49 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') }, 50 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') }, 51 { CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 0 ) }, /* some broken avi use this */ 52 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') }, 53 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') }, 54 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, 55 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') }, 56 { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') }, 57 { CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') }, 58 { CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') }, 59 { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, 60 { CODEC_ID_MPEG4, MKTAG('F', 'F', 'D', 'S') }, 61 { CODEC_ID_MPEG4, MKTAG('F', 'V', 'F', 'W') }, 62 { CODEC_ID_MPEG4, MKTAG('D', 'C', 'O', 'D') }, 63 { CODEC_ID_MPEG4, MKTAG('M', 'V', 'X', 'M') }, 64 { CODEC_ID_MPEG4, MKTAG('P', 'M', '4', 'V') }, 65 { CODEC_ID_MPEG4, MKTAG('S', 'M', 'P', '4') }, 66 { CODEC_ID_MPEG4, MKTAG('D', 'X', 'G', 'M') }, 67 { CODEC_ID_MPEG4, MKTAG('V', 'I', 'D', 'M') }, 68 { CODEC_ID_MPEG4, MKTAG('M', '4', 'T', '3') }, 69 { CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'X') }, 70 { CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') }, /* flipped video */ 71 { CODEC_ID_MPEG4, MKTAG('D', 'M', 'K', '2') }, 72 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'G', 'I') }, 73 { CODEC_ID_MPEG4, MKTAG('I', 'N', 'M', 'C') }, 74 { CODEC_ID_MPEG4, MKTAG('E', 'P', 'H', 'V') }, /* Ephv MPEG-4 */ 75 { CODEC_ID_MPEG4, MKTAG('E', 'M', '4', 'A') }, 76 { CODEC_ID_MPEG4, MKTAG('M', '4', 'C', 'C') }, /* Divio MPEG-4 */ 77 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') }, /* default signature when using MSMPEG4 */ 78 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, 79 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') }, 80 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') }, 81 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') }, 82 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') }, 83 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'V', 'X', '3') }, 84 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') }, 85 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') }, 86 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') }, 87 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') }, 88 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') }, 89 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') }, 90 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', '4', '1') }, 91 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') }, 92 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') }, 93 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') }, 94 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') }, 95 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') }, 96 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') }, 97 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') }, 98 { CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */ 99 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, 100 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') }, 101 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') }, 102 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') }, 103 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') }, 104 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') }, 105 { CODEC_ID_MPEG2VIDEO, MKTAG('P', 'I', 'M', '2') }, 106 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') }, 107 { CODEC_ID_MPEG1VIDEO, MKTAG( 1 , 0 , 0 , 16) }, 108 { CODEC_ID_MPEG2VIDEO, MKTAG( 2 , 0 , 0 , 16) }, 109 { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') }, 110 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') }, 111 { CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */ 112 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') }, 113 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') }, 114 { CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, 115 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') }, 116 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */ 117 { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */ 118 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */ 119 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, 120 { CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') }, 121 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, 122 { CODEC_ID_MJPEG, MKTAG('A', 'C', 'D', 'V') }, 123 { CODEC_ID_MJPEG, MKTAG('Q', 'I', 'V', 'G') }, 124 { CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */ 125 { CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */ 126 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') }, 127 { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') }, 128 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') }, 129 { CODEC_ID_RAWVIDEO, MKTAG( 0 , 0 , 0 , 0 ) }, 130 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') }, 131 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') }, 132 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') }, 133 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') }, 134 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') }, 135 { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') }, 136 { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') }, 137 { CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') }, 138 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') }, 139 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') }, 140 { CODEC_ID_INDEO4, MKTAG('I', 'V', '4', '1') }, 141 { CODEC_ID_INDEO5, MKTAG('I', 'V', '5', '0') }, 142 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, 143 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') }, 144 { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') }, 145 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') }, 146 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') }, 147 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') }, 148 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') }, 149 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') }, 150 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') }, 151 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') }, 152 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') }, 153 { CODEC_ID_MIMIC, MKTAG('L', 'M', '2', '0') }, 154 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') }, 155 { CODEC_ID_MSRLE, MKTAG( 1 , 0 , 0 , 0 ) }, 156 { CODEC_ID_MSRLE, MKTAG( 2 , 0 , 0 , 0 ) }, 157 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') }, 158 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') }, 159 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') }, 160 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') }, 161 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') }, 162 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') }, 163 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, 164 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') }, 165 { CODEC_ID_TRUEMOTION1, MKTAG('P', 'V', 'E', 'Z') }, 166 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') }, 167 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') }, 168 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') }, 169 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') }, 170 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') }, 171 { CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') }, 172 { CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') }, 173 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, 174 { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') }, 175 { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') }, 176 { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') }, 177 { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') }, 178 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') }, 179 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') }, 180 { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') }, 181 { CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') }, 182 { CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') }, 183 { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') }, 184 { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') }, 185 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') }, 186 { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') }, 187 { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') }, 188 { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') }, 189 { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') }, 190 { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') }, 191 { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') }, 192 { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') }, 193 { CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') }, 194 { CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') }, 195 { CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') }, 196 { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, 197 { CODEC_ID_PNG, MKTAG('M', 'P', 'N', 'G') }, 198 { CODEC_ID_CLJR, MKTAG('c', 'l', 'j', 'r') }, 199 { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') }, 200 { CODEC_ID_RPZA, MKTAG('a', 'z', 'p', 'r') }, 201 { CODEC_ID_RPZA, MKTAG('R', 'P', 'Z', 'A') }, 202 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, 203 { CODEC_ID_SP5X, MKTAG('S', 'P', '5', '4') }, 204 { CODEC_ID_NONE, 0 } 205}; 206 207const AVCodecTag codec_wav_tags[] = { 208 { CODEC_ID_PCM_S16LE, 0x0001 }, 209 { CODEC_ID_PCM_U8, 0x0001 }, /* must come after s16le in this list */ 210 { CODEC_ID_PCM_S24LE, 0x0001 }, 211 { CODEC_ID_PCM_S32LE, 0x0001 }, 212 { CODEC_ID_ADPCM_MS, 0x0002 }, 213 { CODEC_ID_PCM_F32LE, 0x0003 }, 214 { CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */ 215 { CODEC_ID_PCM_ALAW, 0x0006 }, 216 { CODEC_ID_PCM_MULAW, 0x0007 }, 217 { CODEC_ID_WMAVOICE, 0x000A }, 218 { CODEC_ID_ADPCM_IMA_WAV, 0x0011 }, 219 { CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */ 220 { CODEC_ID_ADPCM_YAMAHA, 0x0020 }, 221 { CODEC_ID_TRUESPEECH, 0x0022 }, 222 { CODEC_ID_GSM_MS, 0x0031 }, 223 { CODEC_ID_ADPCM_G726, 0x0045 }, 224 { CODEC_ID_MP2, 0x0050 }, 225 { CODEC_ID_MP3, 0x0055 }, 226 { CODEC_ID_AMR_NB, 0x0057 }, 227 { CODEC_ID_AMR_WB, 0x0058 }, 228 { CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */ 229 { CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */ 230 { CODEC_ID_ADPCM_IMA_WAV, 0x0069 }, 231 { CODEC_ID_VOXWARE, 0x0075 }, 232 { CODEC_ID_AAC, 0x00ff }, 233 { CODEC_ID_SIPR, 0x0130 }, 234 { CODEC_ID_WMAV1, 0x0160 }, 235 { CODEC_ID_WMAV2, 0x0161 }, 236 { CODEC_ID_WMAPRO, 0x0162 }, 237 { CODEC_ID_WMALOSSLESS, 0x0163 }, 238 { CODEC_ID_ADPCM_CT, 0x0200 }, 239 { CODEC_ID_ATRAC3, 0x0270 }, 240 { CODEC_ID_IMC, 0x0401 }, 241 { CODEC_ID_AC3, 0x2000 }, 242 { CODEC_ID_DTS, 0x2001 }, 243 { CODEC_ID_SONIC, 0x2048 }, 244 { CODEC_ID_SONIC_LS, 0x2048 }, 245 { CODEC_ID_AAC, 0x706d }, 246 { CODEC_ID_AAC, 0x4143 }, 247 { CODEC_ID_FLAC, 0xF1AC }, 248 { CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' }, 249 { CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id? 250 251 /* FIXME: All of the IDs below are not 16 bit and thus illegal. */ 252 // for NuppelVideo (nuv.c) 253 { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') }, 254 { CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') }, 255 { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') }, 256 { 0, 0 }, 257}; 258 259#if CONFIG_MUXERS 260int64_t start_tag(ByteIOContext *pb, const char *tag) 261{ 262 put_tag(pb, tag); 263 put_le32(pb, 0); 264 return url_ftell(pb); 265} 266 267void end_tag(ByteIOContext *pb, int64_t start) 268{ 269 int64_t pos; 270 271 pos = url_ftell(pb); 272 url_fseek(pb, start - 4, SEEK_SET); 273 put_le32(pb, (uint32_t)(pos - start)); 274 url_fseek(pb, pos, SEEK_SET); 275} 276 277/* WAVEFORMATEX header */ 278/* returns the size or -1 on error */ 279int put_wav_header(ByteIOContext *pb, AVCodecContext *enc) 280{ 281 int bps, blkalign, bytespersec; 282 int hdrsize = 18; 283 284 if(!enc->codec_tag || enc->codec_tag > 0xffff) 285 return -1; 286 287 put_le16(pb, enc->codec_tag); 288 put_le16(pb, enc->channels); 289 put_le32(pb, enc->sample_rate); 290 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) { 291 bps = 0; 292 } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV || enc->codec_id == CODEC_ID_ADPCM_MS || enc->codec_id == CODEC_ID_ADPCM_G726 || enc->codec_id == CODEC_ID_ADPCM_YAMAHA) { // 293 bps = 4; 294 } else { 295 if (!(bps = av_get_bits_per_sample(enc->codec_id))) 296 bps = 16; // default to 16 297 } 298 if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){ 299 av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps); 300 } 301 302 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_AC3) { 303 blkalign = enc->frame_size; //this is wrong, but it seems many demuxers do not work if this is set correctly 304 //blkalign = 144 * enc->bit_rate/enc->sample_rate; 305 } else if (enc->codec_id == CODEC_ID_ADPCM_G726) { // 306 blkalign = 1; 307 } else if (enc->block_align != 0) { /* specified by the codec */ 308 blkalign = enc->block_align; 309 } else 310 blkalign = enc->channels*bps >> 3; 311 if (enc->codec_id == CODEC_ID_PCM_U8 || 312 enc->codec_id == CODEC_ID_PCM_S24LE || 313 enc->codec_id == CODEC_ID_PCM_S32LE || 314 enc->codec_id == CODEC_ID_PCM_F32LE || 315 enc->codec_id == CODEC_ID_PCM_F64LE || 316 enc->codec_id == CODEC_ID_PCM_S16LE) { 317 bytespersec = enc->sample_rate * blkalign; 318 } else { 319 bytespersec = enc->bit_rate / 8; 320 } 321 put_le32(pb, bytespersec); /* bytes per second */ 322 put_le16(pb, blkalign); /* block align */ 323 put_le16(pb, bps); /* bits per sample */ 324 if (enc->codec_id == CODEC_ID_MP3) { 325 put_le16(pb, 12); /* wav_extra_size */ 326 hdrsize += 12; 327 put_le16(pb, 1); /* wID */ 328 put_le32(pb, 2); /* fdwFlags */ 329 put_le16(pb, 1152); /* nBlockSize */ 330 put_le16(pb, 1); /* nFramesPerBlock */ 331 put_le16(pb, 1393); /* nCodecDelay */ 332 } else if (enc->codec_id == CODEC_ID_MP2) { 333 put_le16(pb, 22); /* wav_extra_size */ 334 hdrsize += 22; 335 put_le16(pb, 2); /* fwHeadLayer */ 336 put_le32(pb, enc->bit_rate); /* dwHeadBitrate */ 337 put_le16(pb, enc->channels == 2 ? 1 : 8); /* fwHeadMode */ 338 put_le16(pb, 0); /* fwHeadModeExt */ 339 put_le16(pb, 1); /* wHeadEmphasis */ 340 put_le16(pb, 16); /* fwHeadFlags */ 341 put_le32(pb, 0); /* dwPTSLow */ 342 put_le32(pb, 0); /* dwPTSHigh */ 343 } else if (enc->codec_id == CODEC_ID_GSM_MS) { 344 put_le16(pb, 2); /* wav_extra_size */ 345 hdrsize += 2; 346 put_le16(pb, enc->frame_size); /* wSamplesPerBlock */ 347 } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) { 348 put_le16(pb, 2); /* wav_extra_size */ 349 hdrsize += 2; 350 put_le16(pb, enc->frame_size); /* wSamplesPerBlock */ 351 } else if(enc->extradata_size){ 352 put_le16(pb, enc->extradata_size); 353 put_buffer(pb, enc->extradata, enc->extradata_size); 354 hdrsize += enc->extradata_size; 355 if(hdrsize&1){ 356 hdrsize++; 357 put_byte(pb, 0); 358 } 359 } else { 360 hdrsize -= 2; 361 } 362 363 return hdrsize; 364} 365 366/* BITMAPINFOHEADER header */ 367void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf) 368{ 369 put_le32(pb, 40 + enc->extradata_size); /* size */ 370 put_le32(pb, enc->width); 371 //We always store RGB TopDown 372 put_le32(pb, enc->codec_tag ? enc->height : -enc->height); 373 put_le16(pb, 1); /* planes */ 374 375 put_le16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */ 376 /* compression type */ 377 put_le32(pb, enc->codec_tag); 378 put_le32(pb, enc->width * enc->height * 3); 379 put_le32(pb, 0); 380 put_le32(pb, 0); 381 put_le32(pb, 0); 382 put_le32(pb, 0); 383 384 put_buffer(pb, enc->extradata, enc->extradata_size); 385 386 if (enc->extradata_size & 1) 387 put_byte(pb, 0); 388} 389#endif //CONFIG_MUXERS 390 391#if CONFIG_DEMUXERS 392/* We could be given one of the three possible structures here: 393 * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure 394 * is an expansion of the previous one with the fields added 395 * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and 396 * WAVEFORMATEX adds 'WORD cbSize' and basically makes itself 397 * an openended structure. 398 */ 399void get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size) 400{ 401 int id; 402 403 id = get_le16(pb); 404 codec->codec_type = CODEC_TYPE_AUDIO; 405 codec->codec_tag = id; 406 codec->channels = get_le16(pb); 407 codec->sample_rate = get_le32(pb); 408 codec->bit_rate = get_le32(pb) * 8; 409 codec->block_align = get_le16(pb); 410 if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */ 411 codec->bits_per_coded_sample = 8; 412 }else 413 codec->bits_per_coded_sample = get_le16(pb); 414 if (size >= 18) { /* We're obviously dealing with WAVEFORMATEX */ 415 int cbSize = get_le16(pb); /* cbSize */ 416 size -= 18; 417 cbSize = FFMIN(size, cbSize); 418 if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */ 419 codec->bits_per_coded_sample = get_le16(pb); 420 codec->channel_layout = get_le32(pb); /* dwChannelMask */ 421 id = get_le32(pb); /* 4 first bytes of GUID */ 422 url_fskip(pb, 12); /* skip end of GUID */ 423 cbSize -= 22; 424 size -= 22; 425 } 426 codec->extradata_size = cbSize; 427 if (cbSize > 0) { 428 codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); 429 get_buffer(pb, codec->extradata, codec->extradata_size); 430 size -= cbSize; 431 } 432 433 /* It is possible for the chunk to contain garbage at the end */ 434 if (size > 0) 435 url_fskip(pb, size); 436 } 437 codec->codec_id = wav_codec_get_id(id, codec->bits_per_coded_sample); 438} 439 440 441enum CodecID wav_codec_get_id(unsigned int tag, int bps) 442{ 443 enum CodecID id; 444 id = codec_get_id(codec_wav_tags, tag); 445 if (id <= 0) 446 return id; 447 /* handle specific u8 codec */ 448 if (id == CODEC_ID_PCM_S16LE && bps == 8) 449 id = CODEC_ID_PCM_U8; 450 if (id == CODEC_ID_PCM_S16LE && bps == 24) 451 id = CODEC_ID_PCM_S24LE; 452 if (id == CODEC_ID_PCM_S16LE && bps == 32) 453 id = CODEC_ID_PCM_S32LE; 454 if (id == CODEC_ID_PCM_F32LE && bps == 64) 455 id = CODEC_ID_PCM_F64LE; 456 if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8) 457 id = CODEC_ID_PCM_ZORK; 458 return id; 459} 460#endif // CONFIG_DEMUXERS 461 462void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale) 463{ 464 int gcd; 465 466 *au_ssize= stream->block_align; 467 if(stream->frame_size && stream->sample_rate){ 468 *au_scale=stream->frame_size; 469 *au_rate= stream->sample_rate; 470 }else if(stream->codec_type == CODEC_TYPE_VIDEO){ 471 *au_scale= stream->time_base.num; 472 *au_rate = stream->time_base.den; 473 }else{ 474 *au_scale= stream->block_align ? stream->block_align*8 : 8; 475 *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate; 476 } 477 gcd= av_gcd(*au_scale, *au_rate); 478 *au_scale /= gcd; 479 *au_rate /= gcd; 480} 481