| 376 | } |
| 377 | |
| 378 | static int write_header(AVFormatContext *s) |
| 379 | { |
| 380 | AVIOContext *pb = s->pb; |
| 381 | WtvContext *wctx = s->priv_data; |
| 382 | int i, pad, ret; |
| 383 | AVStream *st; |
| 384 | |
| 385 | wctx->last_chunk_pos = -1; |
| 386 | wctx->last_timestamp_pos = -1; |
| 387 | |
| 388 | ff_put_guid(pb, &ff_wtv_guid); |
| 389 | ff_put_guid(pb, &sub_wtv_guid); |
| 390 | |
| 391 | avio_wl32(pb, 0x01); |
| 392 | avio_wl32(pb, 0x02); |
| 393 | avio_wl32(pb, 1 << WTV_SECTOR_BITS); |
| 394 | avio_wl32(pb, 1 << WTV_BIGSECTOR_BITS); |
| 395 | |
| 396 | //write initial root fields |
| 397 | avio_wl32(pb, 0); // root_size, update later |
| 398 | write_pad(pb, 4); |
| 399 | avio_wl32(pb, 0); // root_sector, update it later. |
| 400 | |
| 401 | write_pad(pb, 32); |
| 402 | avio_wl32(pb, 0); // file ends pointer, update it later. |
| 403 | |
| 404 | pad = (1 << WTV_SECTOR_BITS) - avio_tell(pb); |
| 405 | write_pad(pb, pad); |
| 406 | |
| 407 | wctx->timeline_start_pos = avio_tell(pb); |
| 408 | |
| 409 | wctx->serial = 1; |
| 410 | wctx->last_chunk_pos = -1; |
| 411 | wctx->first_video_flag = 1; |
| 412 | |
| 413 | for (i = 0; i < s->nb_streams; i++) { |
| 414 | st = s->streams[i]; |
| 415 | if (st->codecpar->codec_id == AV_CODEC_ID_MJPEG) |
| 416 | continue; |
| 417 | ret = write_stream_codec(s, st); |
| 418 | if (ret < 0) { |
| 419 | av_log(s, AV_LOG_ERROR, "write stream codec failed codec_type(0x%x)\n", st->codecpar->codec_type); |
| 420 | return -1; |
| 421 | } |
| 422 | if (!i) |
| 423 | write_sync(s); |
| 424 | } |
| 425 | |
| 426 | for (i = 0; i < s->nb_streams; i++) { |
| 427 | st = s->streams[i]; |
| 428 | if (st->codecpar->codec_id == AV_CODEC_ID_MJPEG) |
| 429 | continue; |
| 430 | ret = write_stream_data(s, st); |
| 431 | if (ret < 0) { |
| 432 | av_log(s, AV_LOG_ERROR, "write stream data failed codec_type(0x%x)\n", st->codecpar->codec_type); |
| 433 | return -1; |
| 434 | } |
| 435 | } |
nothing calls this directly
no test coverage detected