libavformat/raw.c

   1 /*
   2  * RAW muxer and demuxer
   3  * Copyright (c) 2001 Fabrice Bellard.
   4  * Copyright (c) 2005 Alex Beregszaszi
   5  *
   6  * This file is part of FFmpeg.
   7  *
   8  * FFmpeg is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * FFmpeg is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with FFmpeg; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #include "libavutil/crc.h"
  24 #include "libavcodec/ac3_parser.h"
  25 #include "libavcodec/bitstream.h"
  26 #include "libavcodec/bytestream.h"
  27 #include "avformat.h"
  28 #include "raw.h"
  29
  30 #ifdef CONFIG_MUXERS
  31 /* simple formats */
  32 static int flac_write_header(struct AVFormatContext *s)
  33 {
  34     static const uint8_t header[8] = {
  35         0x66, 0x4C, 0x61, 0x43, 0x80, 0x00, 0x00, 0x22
  36     };
  37     uint8_t *streaminfo = s->streams[0]->codec->extradata;
  38     int len = s->streams[0]->codec->extradata_size;
  39     if(streaminfo != NULL && len > 0) {
  40         put_buffer(s->pb, header, 8);
  41         put_buffer(s->pb, streaminfo, len);
  42     }
  43     return 0;
  44 }
  45
  46
  47 static int roq_write_header(struct AVFormatContext *s)
  48 {
  49     static const uint8_t header[] = {
  50         0x84, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, 0x1E, 0x00
  51     };
  52
  53     put_buffer(s->pb, header, 8);
  54     put_flush_packet(s->pb);
  55
  56     return 0;
  57 }
  58
  59 static int raw_write_packet(struct AVFormatContext *s, AVPacket *pkt)
  60 {
  61     put_buffer(s->pb, pkt->data, pkt->size);
  62     put_flush_packet(s->pb);
  63     return 0;
  64 }
  65 #endif //CONFIG_MUXERS
  66
  67 /* raw input */
  68 static int raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
  69 {
  70     AVStream *st;
  71     int id;
  72
  73     st = av_new_stream(s, 0);
  74     if (!st)
  75         return AVERROR(ENOMEM);
  76
  77         id = s->iformat->value;
  78         if (id == CODEC_ID_RAWVIDEO) {
  79             st->codec->codec_type = CODEC_TYPE_VIDEO;
  80         } else {
  81             st->codec->codec_type = CODEC_TYPE_AUDIO;
  82         }
  83         st->codec->codec_id = id;
  84
  85         switch(st->codec->codec_type) {
  86         case CODEC_TYPE_AUDIO:
  87             st->codec->sample_rate = ap->sample_rate;
  88             st->codec->channels = ap->channels;
  89             av_set_pts_info(st, 64, 1, st->codec->sample_rate);
  90             break;
  91         case CODEC_TYPE_VIDEO:
  92             if(ap->time_base.num)
  93                 av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
  94             else
  95                 av_set_pts_info(st, 64, 1, 25);
  96             st->codec->width = ap->width;
  97             st->codec->height = ap->height;
  98             st->codec->pix_fmt = ap->pix_fmt;
  99             if(st->codec->pix_fmt == PIX_FMT_NONE)
 100                 st->codec->pix_fmt= PIX_FMT_YUV420P;
 101             break;
 102         default:
 103             return -1;
 104         }
 105     return 0;
 106 }
 107
 108 #define RAW_PACKET_SIZE 1024
 109
 110 static int raw_read_packet(AVFormatContext *s, AVPacket *pkt)
 111 {
 112     int ret, size, bps;
 113     //    AVStream *st = s->streams[0];
 114
 115     size= RAW_PACKET_SIZE;
 116
 117     ret= av_get_packet(s->pb, pkt, size);
 118
 119     pkt->stream_index = 0;
 120     if (ret <= 0) {
 121         return AVERROR(EIO);
 122     }
 123     /* note: we need to modify the packet size here to handle the last
 124        packet */
 125     pkt->size = ret;
 126
 127     bps= av_get_bits_per_sample(s->streams[0]->codec->codec_id);
 128     assert(bps); // if false there IS a bug elsewhere (NOT in this function)
 129     pkt->dts=
 130     pkt->pts= pkt->pos*8 / (bps * s->streams[0]->codec->channels);
 131
 132     return ret;
 133 }
 134
 135 static int raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt)
 136 {
 137     int ret, size;
 138
 139     size = RAW_PACKET_SIZE;
 140
 141     if (av_new_packet(pkt, size) < 0)
 142         return AVERROR(EIO);
 143
 144     pkt->pos= url_ftell(s->pb);
 145     pkt->stream_index = 0;
 146     ret = get_partial_buffer(s->pb, pkt->data, size);
 147     if (ret <= 0) {
 148         av_free_packet(pkt);
 149         return AVERROR(EIO);
 150     }
 151     pkt->size = ret;
 152     return ret;
 153 }
 154
 155 // http://www.artificis.hu/files/texts/ingenient.txt
 156 static int ingenient_read_packet(AVFormatContext *s, AVPacket *pkt)
 157 {
 158     int ret, size, w, h, unk1, unk2;
 159
 160     if (get_le32(s->pb) != MKTAG('M', 'J', 'P', 'G'))
 161         return AVERROR(EIO); // FIXME
 162
 163     size = get_le32(s->pb);
 164
 165     w = get_le16(s->pb);
 166     h = get_le16(s->pb);
 167
 168     url_fskip(s->pb, 8); // zero + size (padded?)
 169     url_fskip(s->pb, 2);
 170     unk1 = get_le16(s->pb);
 171     unk2 = get_le16(s->pb);
 172     url_fskip(s->pb, 22); // ascii timestamp
 173
 174     av_log(NULL, AV_LOG_DEBUG, "Ingenient packet: size=%d, width=%d, height=%d, unk1=%d unk2=%d\n",
 175         size, w, h, unk1, unk2);
 176
 177     if (av_new_packet(pkt, size) < 0)
 178         return AVERROR(EIO);
 179
 180     pkt->pos = url_ftell(s->pb);
 181     pkt->stream_index = 0;
 182     ret = get_buffer(s->pb, pkt->data, size);
 183     if (ret <= 0) {
 184         av_free_packet(pkt);
 185         return AVERROR(EIO);
 186     }
 187     pkt->size = ret;
 188     return ret;
 189 }
 190
 191 static int raw_read_close(AVFormatContext *s)
 192 {
 193     return 0;
 194 }
 195
 196 int pcm_read_seek(AVFormatContext *s,
 197                   int stream_index, int64_t timestamp, int flags)
 198 {
 199     AVStream *st;
 200     int block_align, byte_rate;
 201     int64_t pos;
 202
 203     st = s->streams[0];
 204
 205     block_align = st->codec->block_align ? st->codec->block_align :
 206         (av_get_bits_per_sample(st->codec->codec_id) * st->codec->channels) >> 3;
 207     byte_rate = st->codec->bit_rate ? st->codec->bit_rate >> 3 :
 208         block_align * st->codec->sample_rate;
 209
 210     if (block_align <= 0 || byte_rate <= 0)
 211         return -1;
 212
 213     /* compute the position by aligning it to block_align */
 214     pos = av_rescale_rnd(timestamp * byte_rate,
 215                          st->time_base.num,
 216                          st->time_base.den * (int64_t)block_align,
 217                          (flags & AVSEEK_FLAG_BACKWARD) ? AV_ROUND_DOWN : AV_ROUND_UP);
 218     pos *= block_align;
 219
 220     /* recompute exact position */
 221     st->cur_dts = av_rescale(pos, st->time_base.den, byte_rate * (int64_t)st->time_base.num);
 222     url_fseek(s->pb, pos + s->data_offset, SEEK_SET);
 223     return 0;
 224 }
 225
 226 static int audio_read_header(AVFormatContext *s,
 227                              AVFormatParameters *ap)
 228 {
 229     AVStream *st = av_new_stream(s, 0);
 230     if (!st)
 231         return AVERROR(ENOMEM);
 232     st->codec->codec_type = CODEC_TYPE_AUDIO;
 233     st->codec->codec_id = s->iformat->value;
 234     st->need_parsing = AVSTREAM_PARSE_FULL;
 235     /* the parameters will be extracted from the compressed bitstream */
 236     return 0;
 237 }
 238
 239 /* mpeg1/h263 input */
 240 static int video_read_header(AVFormatContext *s,
 241                              AVFormatParameters *ap)
 242 {
 243     AVStream *st;
 244
 245     st = av_new_stream(s, 0);
 246     if (!st)
 247         return AVERROR(ENOMEM);
 248
 249     st->codec->codec_type = CODEC_TYPE_VIDEO;
 250     st->codec->codec_id = s->iformat->value;
 251     st->need_parsing = AVSTREAM_PARSE_FULL;
 252
 253     /* for mjpeg, specify frame rate */
 254     /* for mpeg4 specify it too (most mpeg4 streams do not have the fixed_vop_rate set ...)*/
 255     if (ap->time_base.num) {
 256         av_set_pts_info(st, 64, ap->time_base.num, ap->time_base.den);
 257     } else if ( st->codec->codec_id == CODEC_ID_MJPEG ||
 258                 st->codec->codec_id == CODEC_ID_MPEG4 ||
 259                 st->codec->codec_id == CODEC_ID_DIRAC ||
 260                 st->codec->codec_id == CODEC_ID_H264) {
 261         av_set_pts_info(st, 64, 1, 25);
 262     }
 263
 264     return 0;
 265 }
 266
 267 #define SEQ_START_CODE          0x000001b3
 268 #define GOP_START_CODE          0x000001b8
 269 #define PICTURE_START_CODE      0x00000100
 270 #define SLICE_START_CODE        0x00000101
 271 #define PACK_START_CODE         0x000001ba
 272 #define VIDEO_ID                0x000001e0
 273 #define AUDIO_ID                0x000001c0
 274
 275 static int mpegvideo_probe(AVProbeData *p)
 276 {
 277     uint32_t code= -1;
 278     int pic=0, seq=0, slice=0, pspack=0, pes=0;
 279     int i;
 280
 281     for(i=0; i<p->buf_size; i++){
 282         code = (code<<8) + p->buf[i];
 283         if ((code & 0xffffff00) == 0x100) {
 284             switch(code){
 285             case     SEQ_START_CODE:   seq++; break;
 286             case PICTURE_START_CODE:   pic++; break;
 287             case   SLICE_START_CODE: slice++; break;
 288             case    PACK_START_CODE: pspack++; break;
 289             }
 290             if     ((code & 0x1f0) == VIDEO_ID)   pes++;
 291             else if((code & 0x1e0) == AUDIO_ID)   pes++;
 292         }
 293     }
 294     if(seq && seq*9<=pic*10 && pic*9<=slice*10 && !pspack && !pes)
 295         return AVPROBE_SCORE_MAX/2+1; // +1 for .mpg
 296     return 0;
 297 }
 298
 299 #define VISUAL_OBJECT_START_CODE       0x000001b5
 300 #define VOP_START_CODE                 0x000001b6
 301
 302 static int mpeg4video_probe(AVProbeData *probe_packet)
 303 {
 304     uint32_t temp_buffer= -1;
 305     int VO=0, VOL=0, VOP = 0, VISO = 0, res=0;
 306     int i;
 307
 308     for(i=0; i<probe_packet->buf_size; i++){
 309         temp_buffer = (temp_buffer<<8) + probe_packet->buf[i];
 310         if ((temp_buffer & 0xffffff00) != 0x100)
 311             continue;
 312
 313         if (temp_buffer == VOP_START_CODE)                         VOP++;
 314         else if (temp_buffer == VISUAL_OBJECT_START_CODE)          VISO++;
 315         else if (temp_buffer < 0x120)                              VO++;
 316         else if (temp_buffer < 0x130)                              VOL++;
 317         else if (   !(0x1AF < temp_buffer && temp_buffer < 0x1B7)
 318                  && !(0x1B9 < temp_buffer && temp_buffer < 0x1C4)) res++;
 319     }
 320
 321     if ( VOP >= VISO && VOP >= VOL && VO >= VOL && VOL > 0 && res==0)
 322         return AVPROBE_SCORE_MAX/2;
 323     return 0;
 324 }
 325
 326 static int h263_probe(AVProbeData *p)
 327 {
 328     int code;
 329     const uint8_t *d;
 330
 331     d = p->buf;
 332     code = (d[0] << 14) | (d[1] << 6) | (d[2] >> 2);
 333     if (code == 0x20) {
 334         return 50;
 335     }
 336     return 0;
 337 }
 338
 339 static int h261_probe(AVProbeData *p)
 340 {
 341     int code;
 342     const uint8_t *d;
 343
 344     d = p->buf;
 345     code = (d[0] << 12) | (d[1] << 4) | (d[2] >> 4);
 346     if (code == 0x10) {
 347         return 50;
 348     }
 349     return 0;
 350 }
 351
 352 #define DCA_MARKER_14B_BE 0x1FFFE800
 353 #define DCA_MARKER_14B_LE 0xFF1F00E8
 354 #define DCA_MARKER_RAW_BE 0x7FFE8001
 355 #define DCA_MARKER_RAW_LE 0xFE7F0180
 356 static int dts_probe(AVProbeData *p)
 357 {
 358     const uint8_t *buf, *bufp;
 359     uint32_t state = -1;
 360
 361     buf = p->buf;
 362
 363     for(; buf < (p->buf+p->buf_size)-2; buf+=2) {
 364         bufp = buf;
 365         state = (state << 16) | bytestream_get_be16(&bufp);
 366
 367         /* Regular bitstream */
 368         if (state == DCA_MARKER_RAW_BE || state == DCA_MARKER_RAW_LE)
 369             return AVPROBE_SCORE_MAX/2+1;
 370
 371         /* 14 bits big endian bitstream */
 372         if (state == DCA_MARKER_14B_BE)
 373             if ((bytestream_get_be16(&bufp) & 0xFFF0) == 0x07F0)
 374                 return AVPROBE_SCORE_MAX/2+1;
 375
 376         /* 14 bits little endian bitstream */
 377         if (state == DCA_MARKER_14B_LE)
 378             if ((bytestream_get_be16(&bufp) & 0xF0FF) == 0xF007)
 379                 return AVPROBE_SCORE_MAX/2+1;
 380     }
 381
 382     return 0;
 383 }
 384
 385 static int dirac_probe(AVProbeData *p)
 386 {
 387     if (AV_RL32(p->buf) == MKTAG('B', 'B', 'C', 'D'))
 388         return AVPROBE_SCORE_MAX;
 389     else
 390         return 0;
 391 }
 392
 393 static int ac3_probe(AVProbeData *p)
 394 {
 395     int max_frames, first_frames = 0, frames;
 396     uint8_t *buf, *buf2, *end;
 397     AC3HeaderInfo hdr;
 398     GetBitContext gbc;
 399
 400     max_frames = 0;
 401     buf = p->buf;
 402     end = buf + p->buf_size;
 403
 404     for(; buf < end; buf++) {
 405         buf2 = buf;
 406
 407         for(frames = 0; buf2 < end; frames++) {
 408             init_get_bits(&gbc, buf2, 54);
 409             if(ff_ac3_parse_header(&gbc, &hdr) < 0)
 410                 break;
 411             if(buf2 + hdr.frame_size > end ||
 412                av_crc(av_crc_get_table(AV_CRC_16_ANSI), 0, buf2 + 2, hdr.frame_size - 2))
 413                 break;
 414             buf2 += hdr.frame_size;
 415         }
 416         max_frames = FFMAX(max_frames, frames);
 417         if(buf == p->buf)
 418             first_frames = frames;
 419     }
 420     if   (first_frames>=3) return AVPROBE_SCORE_MAX * 3 / 4;
 421     else if(max_frames>=3) return AVPROBE_SCORE_MAX / 2;
 422     else if(max_frames>=1) return 1;
 423     else                   return 0;
 424 }
 425
 426 static int flac_probe(AVProbeData *p)
 427 {
 428     if(memcmp(p->buf, "fLaC", 4)) return 0;
 429     else                          return AVPROBE_SCORE_MAX / 2;
 430 }
 431
 432 AVInputFormat shorten_demuxer = {
 433     "shn",
 434     "raw shorten",
 435     0,
 436     NULL,
 437     audio_read_header,
 438     raw_read_partial_packet,
 439     raw_read_close,
 440     .flags= AVFMT_GENERIC_INDEX,
 441     .extensions = "shn",
 442     .value = CODEC_ID_SHORTEN,
 443 };
 444
 445 AVInputFormat mlp_demuxer = {
 446     "mlp",
 447     "raw mlp",
 448     0,
 449     NULL,
 450     audio_read_header,
 451     raw_read_partial_packet,
 452     raw_read_close,
 453     .flags= AVFMT_GENERIC_INDEX,
 454     .extensions = "mlp",
 455     .value = CODEC_ID_MLP,
 456 };
 457
 458 AVInputFormat flac_demuxer = {
 459     "flac",
 460     "raw flac",
 461     0,
 462     flac_probe,
 463     audio_read_header,
 464     raw_read_partial_packet,
 465     raw_read_close,
 466     .flags= AVFMT_GENERIC_INDEX,
 467     .extensions = "flac",
 468     .value = CODEC_ID_FLAC,
 469 };
 470
 471 #ifdef CONFIG_MUXERS
 472 AVOutputFormat flac_muxer = {
 473     "flac",
 474     "raw flac",
 475     "audio/x-flac",
 476     "flac",
 477     0,
 478     CODEC_ID_FLAC,
 479     CODEC_ID_NONE,
 480     flac_write_header,
 481     raw_write_packet,
 482     .flags= AVFMT_NOTIMESTAMPS,
 483 };
 484 #endif //CONFIG_MUXERS
 485
 486 #ifdef CONFIG_AC3_DEMUXER
 487 AVInputFormat ac3_demuxer = {
 488     "ac3",
 489     "raw ac3",
 490     0,
 491     ac3_probe,
 492     audio_read_header,
 493     raw_read_partial_packet,
 494     raw_read_close,
 495     .flags= AVFMT_GENERIC_INDEX,
 496     .extensions = "ac3",
 497     .value = CODEC_ID_AC3,
 498 };
 499 #endif
 500
 501 #ifdef CONFIG_MUXERS
 502 AVOutputFormat ac3_muxer = {
 503     "ac3",
 504     "raw ac3",
 505     "audio/x-ac3",
 506     "ac3",
 507     0,
 508     CODEC_ID_AC3,
 509     CODEC_ID_NONE,
 510     NULL,
 511     raw_write_packet,
 512     .flags= AVFMT_NOTIMESTAMPS,
 513 };
 514
 515 AVOutputFormat dts_muxer = {
 516     "dts",
 517     "raw dts",
 518     "audio/x-dca",
 519     "dts",
 520     0,
 521     CODEC_ID_DTS,
 522     CODEC_ID_NONE,
 523     NULL,
 524     raw_write_packet,
 525     .flags= AVFMT_NOTIMESTAMPS,
 526 };
 527
 528 #endif //CONFIG_MUXERS
 529
 530 AVInputFormat dirac_demuxer = {
 531     "dirac",
 532     "raw dirac",
 533     0,
 534     dirac_probe,
 535     video_read_header,
 536     raw_read_partial_packet,
 537     raw_read_close,
 538     .flags= AVFMT_GENERIC_INDEX,
 539     .value = CODEC_ID_DIRAC,
 540 };
 541
 542 #ifdef CONFIG_MUXERS
 543 AVOutputFormat dirac_muxer = {
 544     "dirac",
 545     "raw dirac",
 546     NULL,
 547     "drc",
 548     0,
 549     CODEC_ID_NONE,
 550     CODEC_ID_DIRAC,
 551     NULL,
 552     raw_write_packet,
 553     .flags= AVFMT_NOTIMESTAMPS,
 554 };
 555 #endif
 556
 557 AVInputFormat dts_demuxer = {
 558     "dts",
 559     "raw dts",
 560     0,
 561     dts_probe,
 562     audio_read_header,
 563     raw_read_partial_packet,
 564     raw_read_close,
 565     .flags= AVFMT_GENERIC_INDEX,
 566     .extensions = "dts",
 567     .value = CODEC_ID_DTS,
 568 };
 569
 570 AVInputFormat aac_demuxer = {
 571     "aac",
 572     "ADTS AAC",
 573     0,
 574     NULL,
 575     audio_read_header,
 576     raw_read_partial_packet,
 577     raw_read_close,
 578     .flags= AVFMT_GENERIC_INDEX,
 579     .extensions = "aac",
 580     .value = CODEC_ID_AAC,
 581 };
 582
 583 AVInputFormat gsm_demuxer = {
 584     "gsm",
 585     "GSM",
 586     0,
 587     NULL,
 588     audio_read_header,
 589     raw_read_partial_packet,
 590     raw_read_close,
 591     .flags= AVFMT_GENERIC_INDEX,
 592     .extensions = "gsm",
 593     .value = CODEC_ID_GSM,
 594 };
 595
 596 #ifdef CONFIG_ROQ_MUXER
 597 AVOutputFormat roq_muxer =
 598 {
 599     "RoQ",
 600     "Id RoQ format",
 601     NULL,
 602     "roq",
 603     0,
 604     CODEC_ID_ROQ_DPCM,
 605     CODEC_ID_ROQ,
 606     roq_write_header,
 607     raw_write_packet,
 608 };
 609 #endif //CONFIG_ROQ_MUXER
 610
 611 AVInputFormat h261_demuxer = {
 612     "h261",
 613     "raw h261",
 614     0,
 615     h261_probe,
 616     video_read_header,
 617     raw_read_partial_packet,
 618     raw_read_close,
 619     .flags= AVFMT_GENERIC_INDEX,
 620     .extensions = "h261",
 621     .value = CODEC_ID_H261,
 622 };
 623
 624 #ifdef CONFIG_MUXERS
 625 AVOutputFormat h261_muxer = {
 626     "h261",
 627     "raw h261",
 628     "video/x-h261",
 629     "h261",
 630     0,
 631     CODEC_ID_NONE,
 632     CODEC_ID_H261,
 633     NULL,
 634     raw_write_packet,
 635     .flags= AVFMT_NOTIMESTAMPS,
 636 };
 637 #endif //CONFIG_MUXERS
 638
 639 AVInputFormat h263_demuxer = {
 640     "h263",
 641     "raw h263",
 642     0,
 643     h263_probe,
 644     video_read_header,
 645     raw_read_partial_packet,
 646     raw_read_close,
 647     .flags= AVFMT_GENERIC_INDEX,
 648 //    .extensions = "h263", //FIXME remove after writing mpeg4_probe
 649     .value = CODEC_ID_H263,
 650 };
 651
 652 #ifdef CONFIG_MUXERS
 653 AVOutputFormat h263_muxer = {
 654     "h263",
 655     "raw h263",
 656     "video/x-h263",
 657     "h263",
 658     0,
 659     CODEC_ID_NONE,
 660     CODEC_ID_H263,
 661     NULL,
 662     raw_write_packet,
 663     .flags= AVFMT_NOTIMESTAMPS,
 664 };
 665 #endif //CONFIG_MUXERS
 666
 667 AVInputFormat m4v_demuxer = {
 668     "m4v",
 669     "raw MPEG4 video format",
 670     0,
 671     mpeg4video_probe, /** probing for mpeg4 data */
 672     video_read_header,
 673     raw_read_partial_packet,
 674     raw_read_close,
 675     .flags= AVFMT_GENERIC_INDEX,
 676     .extensions = "m4v", //FIXME remove after writing mpeg4_probe
 677     .value = CODEC_ID_MPEG4,
 678 };
 679
 680 #ifdef CONFIG_MUXERS
 681 AVOutputFormat m4v_muxer = {
 682     "m4v",
 683     "raw MPEG4 video format",
 684     NULL,
 685     "m4v",
 686     0,
 687     CODEC_ID_NONE,
 688     CODEC_ID_MPEG4,
 689     NULL,
 690     raw_write_packet,
 691     .flags= AVFMT_NOTIMESTAMPS,
 692 };
 693 #endif //CONFIG_MUXERS
 694
 695 AVInputFormat h264_demuxer = {
 696     "h264",
 697     "raw H264 video format",
 698     0,
 699     NULL /*mpegvideo_probe*/,
 700     video_read_header,
 701     raw_read_partial_packet,
 702     raw_read_close,
 703     .flags= AVFMT_GENERIC_INDEX,
 704     .extensions = "h26l,h264,264", //FIXME remove after writing mpeg4_probe
 705     .value = CODEC_ID_H264,
 706 };
 707
 708 #ifdef CONFIG_MUXERS
 709 AVOutputFormat h264_muxer = {
 710     "h264",
 711     "raw H264 video format",
 712     NULL,
 713     "h264",
 714     0,
 715     CODEC_ID_NONE,
 716     CODEC_ID_H264,
 717     NULL,
 718     raw_write_packet,
 719     .flags= AVFMT_NOTIMESTAMPS,
 720 };
 721 #endif //CONFIG_MUXERS
 722
 723 AVInputFormat mpegvideo_demuxer = {
 724     "mpegvideo",
 725     "MPEG video",
 726     0,
 727     mpegvideo_probe,
 728     video_read_header,
 729     raw_read_partial_packet,
 730     raw_read_close,
 731     .flags= AVFMT_GENERIC_INDEX,
 732     .value = CODEC_ID_MPEG1VIDEO,
 733 };
 734
 735 #ifdef CONFIG_MUXERS
 736 AVOutputFormat mpeg1video_muxer = {
 737     "mpeg1video",
 738     "MPEG video",
 739     "video/x-mpeg",
 740     "mpg,mpeg,m1v",
 741     0,
 742     CODEC_ID_NONE,
 743     CODEC_ID_MPEG1VIDEO,
 744     NULL,
 745     raw_write_packet,
 746     .flags= AVFMT_NOTIMESTAMPS,
 747 };
 748 #endif //CONFIG_MUXERS
 749
 750 #ifdef CONFIG_MUXERS
 751 AVOutputFormat mpeg2video_muxer = {
 752     "mpeg2video",
 753     "MPEG2 video",
 754     NULL,
 755     "m2v",
 756     0,
 757     CODEC_ID_NONE,
 758     CODEC_ID_MPEG2VIDEO,
 759     NULL,
 760     raw_write_packet,
 761     .flags= AVFMT_NOTIMESTAMPS,
 762 };
 763 #endif //CONFIG_MUXERS
 764
 765 AVInputFormat mjpeg_demuxer = {
 766     "mjpeg",
 767     "MJPEG video",
 768     0,
 769     NULL,
 770     video_read_header,
 771     raw_read_partial_packet,
 772     raw_read_close,
 773     .flags= AVFMT_GENERIC_INDEX,
 774     .extensions = "mjpg,mjpeg",
 775     .value = CODEC_ID_MJPEG,
 776 };
 777
 778 AVInputFormat ingenient_demuxer = {
 779     "ingenient",
 780     "Ingenient MJPEG",
 781     0,
 782     NULL,
 783     video_read_header,
 784     ingenient_read_packet,
 785     raw_read_close,
 786     .flags= AVFMT_GENERIC_INDEX,
 787     .extensions = "cgi", // FIXME
 788     .value = CODEC_ID_MJPEG,
 789 };
 790
 791 #ifdef CONFIG_MUXERS
 792 AVOutputFormat mjpeg_muxer = {
 793     "mjpeg",
 794     "MJPEG video",
 795     "video/x-mjpeg",
 796     "mjpg,mjpeg",
 797     0,
 798     CODEC_ID_NONE,
 799     CODEC_ID_MJPEG,
 800     NULL,
 801     raw_write_packet,
 802     .flags= AVFMT_NOTIMESTAMPS,
 803 };
 804 #endif //CONFIG_MUXERS
 805
 806 AVInputFormat vc1_demuxer = {
 807     "vc1",
 808     "raw vc1",
 809     0,
 810     NULL /* vc1_probe */,
 811     video_read_header,
 812     raw_read_partial_packet,
 813     raw_read_close,
 814     .extensions = "vc1",
 815     .value = CODEC_ID_VC1,
 816 };
 817
 818 /* pcm formats */
 819
 820 #define PCMINPUTDEF(name, long_name, ext, codec) \
 821 AVInputFormat pcm_ ## name ## _demuxer = {\
 822     #name,\
 823     long_name,\
 824     0,\
 825     NULL,\
 826     raw_read_header,\
 827     raw_read_packet,\
 828     raw_read_close,\
 829     pcm_read_seek,\
 830     .flags= AVFMT_GENERIC_INDEX,\
 831     .extensions = ext,\
 832     .value = codec,\
 833 };
 834
 835 #define PCMOUTPUTDEF(name, long_name, ext, codec) \
 836 AVOutputFormat pcm_ ## name ## _muxer = {\
 837     #name,\
 838     long_name,\
 839     NULL,\
 840     ext,\
 841     0,\
 842     codec,\
 843     CODEC_ID_NONE,\
 844     NULL,\
 845     raw_write_packet,\
 846     .flags= AVFMT_NOTIMESTAMPS,\
 847 };
 848
 849
 850 #if !defined(CONFIG_MUXERS) && defined(CONFIG_DEMUXERS)
 851 #define PCMDEF(name, long_name, ext, codec) \
 852         PCMINPUTDEF(name, long_name, ext, codec)
 853 #elif defined(CONFIG_MUXERS) && !defined(CONFIG_DEMUXERS)
 854 #define PCMDEF(name, long_name, ext, codec) \
 855         PCMOUTPUTDEF(name, long_name, ext, codec)
 856 #elif defined(CONFIG_MUXERS) && defined(CONFIG_DEMUXERS)
 857 #define PCMDEF(name, long_name, ext, codec) \
 858         PCMINPUTDEF(name, long_name, ext, codec)\
 859         PCMOUTPUTDEF(name, long_name, ext, codec)
 860 #else
 861 #define PCMDEF(name, long_name, ext, codec)
 862 #endif
 863
 864 #ifdef WORDS_BIGENDIAN
 865 #define BE_DEF(s) s
 866 #define LE_DEF(s) NULL
 867 #else
 868 #define BE_DEF(s) NULL
 869 #define LE_DEF(s) s
 870 #endif
 871
 872
 873 PCMDEF(s16le, "pcm signed 16 bit little endian format",
 874        LE_DEF("sw"), CODEC_ID_PCM_S16LE)
 875
 876 PCMDEF(s16be, "pcm signed 16 bit big endian format",
 877        BE_DEF("sw"), CODEC_ID_PCM_S16BE)
 878
 879 PCMDEF(u16le, "pcm unsigned 16 bit little endian format",
 880        LE_DEF("uw"), CODEC_ID_PCM_U16LE)
 881
 882 PCMDEF(u16be, "pcm unsigned 16 bit big endian format",
 883        BE_DEF("uw"), CODEC_ID_PCM_U16BE)
 884
 885 PCMDEF(s8, "pcm signed 8 bit format",
 886        "sb", CODEC_ID_PCM_S8)
 887
 888 PCMDEF(u8, "pcm unsigned 8 bit format",
 889        "ub", CODEC_ID_PCM_U8)
 890
 891 PCMDEF(mulaw, "pcm mu law format",
 892        "ul", CODEC_ID_PCM_MULAW)
 893
 894 PCMDEF(alaw, "pcm A law format",
 895        "al", CODEC_ID_PCM_ALAW)
 896
 897 static int rawvideo_read_packet(AVFormatContext *s, AVPacket *pkt)
 898 {
 899     int packet_size, ret, width, height;
 900     AVStream *st = s->streams[0];
 901
 902     width = st->codec->width;
 903     height = st->codec->height;
 904
 905     packet_size = avpicture_get_size(st->codec->pix_fmt, width, height);
 906     if (packet_size < 0)
 907         return -1;
 908
 909     ret= av_get_packet(s->pb, pkt, packet_size);
 910     pkt->pts=
 911     pkt->dts= pkt->pos / packet_size;
 912
 913     pkt->stream_index = 0;
 914     if (ret != packet_size) {
 915         return AVERROR(EIO);
 916     } else {
 917         return 0;
 918     }
 919 }
 920
 921 AVInputFormat rawvideo_demuxer = {
 922     "rawvideo",
 923     "raw video format",
 924     0,
 925     NULL,
 926     raw_read_header,
 927     rawvideo_read_packet,
 928     raw_read_close,
 929     .flags= AVFMT_GENERIC_INDEX,
 930     .extensions = "yuv,cif,qcif,rgb",
 931     .value = CODEC_ID_RAWVIDEO,
 932 };
 933
 934 #ifdef CONFIG_MUXERS
 935 AVOutputFormat rawvideo_muxer = {
 936     "rawvideo",
 937     "raw video format",
 938     NULL,
 939     "yuv,rgb",
 940     0,
 941     CODEC_ID_NONE,
 942     CODEC_ID_RAWVIDEO,
 943     NULL,
 944     raw_write_packet,
 945     .flags= AVFMT_NOTIMESTAMPS,
 946 };
 947 #endif //CONFIG_MUXERS
 948
 949 #ifdef CONFIG_MUXERS
 950 static int null_write_packet(struct AVFormatContext *s, AVPacket *pkt)
 951 {
 952     return 0;
 953 }
 954
 955 AVOutputFormat null_muxer = {
 956     "null",
 957     "null video format",
 958     NULL,
 959     NULL,
 960     0,
 961 #ifdef WORDS_BIGENDIAN
 962     CODEC_ID_PCM_S16BE,
 963 #else
 964     CODEC_ID_PCM_S16LE,
 965 #endif
 966     CODEC_ID_RAWVIDEO,
 967     NULL,
 968     null_write_packet,
 969     .flags = AVFMT_NOFILE | AVFMT_RAWPICTURE | AVFMT_NOTIMESTAMPS,
 970 };
 971 #endif //CONFIG_MUXERS