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00022 #include "avformat.h"
00023 #include "avcodec.h"
00024 #include "riff.h"
00025
00026
00027
00028 const AVCodecTag codec_bmp_tags[] = {
00029 { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
00030 { CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
00031 { CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
00032 { CODEC_ID_H264, MKTAG('x', '2', '6', '4') },
00033 { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
00034 { CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') },
00035
00036 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
00037 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
00038 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') },
00039 { CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
00040
00041
00042 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
00043 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
00044
00045 { CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4') },
00046 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') },
00047 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0') },
00048 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
00049 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
00050 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
00051 { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) },
00052
00053
00054 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
00055 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
00056 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
00057 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
00058 { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
00059 { CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') },
00060
00061 { CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') },
00062
00063 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') },
00064 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
00065
00066
00067 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
00068 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
00069 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
00070 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
00071 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
00072 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
00073 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
00074
00075 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
00076
00077
00078 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
00079
00080 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
00081
00082 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
00083
00084
00085 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
00086 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
00087 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
00088 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
00089 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
00090 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') },
00091 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
00092 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
00093 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
00094 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') },
00095 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
00096 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
00097 { CODEC_ID_MPEG1VIDEO, 0x10000001 },
00098 { CODEC_ID_MPEG2VIDEO, 0x10000002 },
00099 { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
00100 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') },
00101 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
00102 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
00103 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
00104 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') },
00105 { CODEC_ID_JPEGLS,MKTAG('M', 'J', 'L', 'S') },
00106 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') },
00107 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') },
00108 { CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') },
00109 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') },
00110 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
00111 { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
00112 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
00113 { CODEC_ID_RAWVIDEO, 0 },
00114 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
00115 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
00116 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
00117 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') },
00118 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
00119 { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
00120 { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') },
00121 { CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') },
00122 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
00123 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
00124 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
00125 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
00126 { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
00127 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
00128 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
00129 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
00130 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
00131 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
00132 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
00133 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
00134 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
00135 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
00136 { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
00137 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
00138 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
00139 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
00140 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
00141 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
00142 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
00143 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
00144 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
00145 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
00146 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
00147 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
00148 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
00149 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
00150 { CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') },
00151 { CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') },
00152 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
00153 { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
00154 { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
00155 { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
00156 { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
00157 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
00158 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
00159 { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
00160 { CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') },
00161 { CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') },
00162 { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
00163 { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
00164 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
00165 { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
00166 { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
00167 { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
00168 { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
00169 { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
00170 { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
00171 { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
00172 { CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') },
00173 { CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') },
00174 { CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') },
00175 { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') },
00176 { CODEC_ID_NONE, 0 },
00177 };
00178
00179 const AVCodecTag codec_wav_tags[] = {
00180 { CODEC_ID_MP2, 0x50 },
00181 { CODEC_ID_MP3, 0x55 },
00182 { CODEC_ID_AC3, 0x2000 },
00183 { CODEC_ID_DTS, 0x2001 },
00184 { CODEC_ID_PCM_S16LE, 0x01 },
00185 { CODEC_ID_PCM_U8, 0x01 },
00186 { CODEC_ID_PCM_S24LE, 0x01 },
00187 { CODEC_ID_PCM_S32LE, 0x01 },
00188 { CODEC_ID_PCM_ALAW, 0x06 },
00189 { CODEC_ID_PCM_MULAW, 0x07 },
00190 { CODEC_ID_ADPCM_MS, 0x02 },
00191 { CODEC_ID_ADPCM_IMA_WAV, 0x11 },
00192 { CODEC_ID_ADPCM_YAMAHA, 0x20 },
00193 { CODEC_ID_ADPCM_G726, 0x45 },
00194 { CODEC_ID_ADPCM_IMA_DK4, 0x61 },
00195 { CODEC_ID_ADPCM_IMA_DK3, 0x62 },
00196 { CODEC_ID_WMAV1, 0x160 },
00197 { CODEC_ID_WMAV2, 0x161 },
00198 { CODEC_ID_AAC, 0x706d },
00199 { CODEC_ID_AAC, 0xff },
00200 { CODEC_ID_VORBIS, ('V'<<8)+'o' },
00201 { CODEC_ID_SONIC, 0x2048 },
00202 { CODEC_ID_SONIC_LS, 0x2048 },
00203 { CODEC_ID_ADPCM_CT, 0x200 },
00204 { CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' },
00205 { CODEC_ID_TRUESPEECH, 0x22 },
00206 { CODEC_ID_FLAC, 0xF1AC },
00207 { CODEC_ID_IMC, 0x401 },
00208 { CODEC_ID_GSM_MS, 0x31 },
00209 { CODEC_ID_ATRAC3, 0x270 },
00210 { CODEC_ID_VOXWARE, 0x75 },
00211
00212
00213
00214 { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') },
00215 { CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') },
00216 { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
00217 { 0, 0 },
00218 };
00219
00220 #ifdef CONFIG_MUXERS
00221 offset_t start_tag(ByteIOContext *pb, const char *tag)
00222 {
00223 put_tag(pb, tag);
00224 put_le32(pb, 0);
00225 return url_ftell(pb);
00226 }
00227
00228 void end_tag(ByteIOContext *pb, offset_t start)
00229 {
00230 offset_t pos;
00231
00232 pos = url_ftell(pb);
00233 url_fseek(pb, start - 4, SEEK_SET);
00234 put_le32(pb, (uint32_t)(pos - start));
00235 url_fseek(pb, pos, SEEK_SET);
00236 }
00237
00238
00239
00240 int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
00241 {
00242 int bps, blkalign, bytespersec;
00243 int hdrsize = 18;
00244
00245 if(!enc->codec_tag || enc->codec_tag > 0xffff)
00246 return -1;
00247
00248 put_le16(pb, enc->codec_tag);
00249 put_le16(pb, enc->channels);
00250 put_le32(pb, enc->sample_rate);
00251 if (enc->codec_id == CODEC_ID_PCM_U8 ||
00252 enc->codec_id == CODEC_ID_PCM_ALAW ||
00253 enc->codec_id == CODEC_ID_PCM_MULAW) {
00254 bps = 8;
00255 } else if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
00256 bps = 0;
00257 } 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) {
00258 bps = 4;
00259 } else if (enc->codec_id == CODEC_ID_PCM_S24LE) {
00260 bps = 24;
00261 } else if (enc->codec_id == CODEC_ID_PCM_S32LE) {
00262 bps = 32;
00263 } else {
00264 bps = 16;
00265 }
00266 if(bps != enc->bits_per_sample && enc->bits_per_sample){
00267 av_log(enc, AV_LOG_WARNING, "requested bits_per_sample (%d) and actually stored (%d) differ\n", enc->bits_per_sample, bps);
00268 }
00269
00270 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
00271 blkalign = enc->frame_size;
00272
00273 } else if (enc->codec_id == CODEC_ID_ADPCM_G726) {
00274 blkalign = 1;
00275 } else if (enc->block_align != 0) {
00276 blkalign = enc->block_align;
00277 } else
00278 blkalign = enc->channels*bps >> 3;
00279 if (enc->codec_id == CODEC_ID_PCM_U8 ||
00280 enc->codec_id == CODEC_ID_PCM_S24LE ||
00281 enc->codec_id == CODEC_ID_PCM_S32LE ||
00282 enc->codec_id == CODEC_ID_PCM_S16LE) {
00283 bytespersec = enc->sample_rate * blkalign;
00284 } else {
00285 bytespersec = enc->bit_rate / 8;
00286 }
00287 put_le32(pb, bytespersec);
00288 put_le16(pb, blkalign);
00289 put_le16(pb, bps);
00290 if (enc->codec_id == CODEC_ID_MP3) {
00291 put_le16(pb, 12);
00292 hdrsize += 12;
00293 put_le16(pb, 1);
00294 put_le32(pb, 2);
00295 put_le16(pb, 1152);
00296 put_le16(pb, 1);
00297 put_le16(pb, 1393);
00298 } else if (enc->codec_id == CODEC_ID_MP2) {
00299 put_le16(pb, 22);
00300 hdrsize += 22;
00301 put_le16(pb, 2);
00302 put_le32(pb, enc->bit_rate);
00303 put_le16(pb, enc->channels == 2 ? 1 : 8);
00304 put_le16(pb, 0);
00305 put_le16(pb, 1);
00306 put_le16(pb, 16);
00307 put_le32(pb, 0);
00308 put_le32(pb, 0);
00309 } else if (enc->codec_id == CODEC_ID_GSM_MS) {
00310 put_le16(pb, 2);
00311 hdrsize += 2;
00312 put_le16(pb, enc->frame_size);
00313 } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
00314 put_le16(pb, 2);
00315 hdrsize += 2;
00316 put_le16(pb, enc->frame_size);
00317 } else if(enc->extradata_size){
00318 put_le16(pb, enc->extradata_size);
00319 put_buffer(pb, enc->extradata, enc->extradata_size);
00320 hdrsize += enc->extradata_size;
00321 if(hdrsize&1){
00322 hdrsize++;
00323 put_byte(pb, 0);
00324 }
00325 } else {
00326 hdrsize -= 2;
00327 }
00328
00329 return hdrsize;
00330 }
00331
00332
00333 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
00334 {
00335 put_le32(pb, 40 + enc->extradata_size);
00336 put_le32(pb, enc->width);
00337 put_le32(pb, enc->height);
00338 put_le16(pb, 1);
00339
00340 put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24);
00341
00342 put_le32(pb, enc->codec_tag);
00343 put_le32(pb, enc->width * enc->height * 3);
00344 put_le32(pb, 0);
00345 put_le32(pb, 0);
00346 put_le32(pb, 0);
00347 put_le32(pb, 0);
00348
00349 put_buffer(pb, enc->extradata, enc->extradata_size);
00350
00351 if (enc->extradata_size & 1)
00352 put_byte(pb, 0);
00353 }
00354 #endif //CONFIG_MUXERS
00355
00356 #ifdef CONFIG_DEMUXERS
00357
00358
00359
00360
00361
00362
00363
00364 void get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size)
00365 {
00366 int id;
00367
00368 id = get_le16(pb);
00369 codec->codec_type = CODEC_TYPE_AUDIO;
00370 codec->codec_tag = id;
00371 codec->channels = get_le16(pb);
00372 codec->sample_rate = get_le32(pb);
00373 codec->bit_rate = get_le32(pb) * 8;
00374 codec->block_align = get_le16(pb);
00375 if (size == 14) {
00376 codec->bits_per_sample = 8;
00377 }else
00378 codec->bits_per_sample = get_le16(pb);
00379 if (size >= 18) {
00380 int cbSize = get_le16(pb);
00381 size -= 18;
00382 cbSize = FFMIN(size, cbSize);
00383 if (cbSize >= 22 && id == 0xfffe) {
00384 codec->bits_per_sample = get_le16(pb);
00385 get_le32(pb);
00386 id = get_le32(pb);
00387 url_fskip(pb, 12);
00388 cbSize -= 22;
00389 size -= 22;
00390 }
00391 codec->extradata_size = cbSize;
00392 if (cbSize > 0) {
00393 codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
00394 get_buffer(pb, codec->extradata, codec->extradata_size);
00395 size -= cbSize;
00396 }
00397
00398
00399 if (size > 0)
00400 url_fskip(pb, size);
00401 }
00402 codec->codec_id = wav_codec_get_id(id, codec->bits_per_sample);
00403 }
00404
00405
00406 int wav_codec_get_id(unsigned int tag, int bps)
00407 {
00408 int id;
00409 id = codec_get_id(codec_wav_tags, tag);
00410 if (id <= 0)
00411 return id;
00412
00413 if (id == CODEC_ID_PCM_S16LE && bps == 8)
00414 id = CODEC_ID_PCM_U8;
00415 if (id == CODEC_ID_PCM_S16LE && bps == 24)
00416 id = CODEC_ID_PCM_S24LE;
00417 if (id == CODEC_ID_PCM_S16LE && bps == 32)
00418 id = CODEC_ID_PCM_S32LE;
00419 if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8)
00420 id = CODEC_ID_PCM_ZORK;
00421 return id;
00422 }
00423 #endif // CONFIG_DEMUXERS
00424
00425 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
00426 {
00427 int gcd;
00428
00429 *au_ssize= stream->block_align;
00430 if(stream->frame_size && stream->sample_rate){
00431 *au_scale=stream->frame_size;
00432 *au_rate= stream->sample_rate;
00433 }else if(stream->codec_type == CODEC_TYPE_VIDEO){
00434 *au_scale= stream->time_base.num;
00435 *au_rate = stream->time_base.den;
00436 }else{
00437 *au_scale= stream->block_align ? stream->block_align*8 : 8;
00438 *au_rate = stream->bit_rate;
00439 }
00440 gcd= ff_gcd(*au_scale, *au_rate);
00441 *au_scale /= gcd;
00442 *au_rate /= gcd;
00443 }