static int read_thread(void *arg) { VideoState *is = arg; AVFormatContext *ic = NULL; int err, i, ret; int st_index[AVMEDIA_TYPE_NB]; AVPacket pkt1, *pkt = &pkt1; int64_t stream_start_time; int pkt_in_play_range = 0; AVDictionaryEntry *t; AVDictionary **opts; int orig_nb_streams; SDL_mutex *wait_mutex = SDL_CreateMutex(); int scan_all_pmts_set = 0; int64_t pkt_ts; if (!wait_mutex) { av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError()); ret = AVERROR(ENOMEM); goto fail; } memset(st_index, -1, sizeof(st_index)); is->last_video_stream = is->video_stream = -1; is->last_audio_stream = is->audio_stream = -1; is->last_subtitle_stream = is->subtitle_stream = -1; is->eof = 0; ic = avformat_alloc_context(); if (!ic) { av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n"); ret = AVERROR(ENOMEM); goto fail; } ic->interrupt_callback.callback = decode_interrupt_cb; ic->interrupt_callback.opaque = is; if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) { av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE); scan_all_pmts_set = 1; } err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts); if (err < 0) { print_error(is->filename, err); ret = -1; goto fail; } if (scan_all_pmts_set) av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE); if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); ret = AVERROR_OPTION_NOT_FOUND; goto fail; } is->ic = ic; if (genpts) ic->flags |= AVFMT_FLAG_GENPTS; av_format_inject_global_side_data(ic); opts = setup_find_stream_info_opts(ic, codec_opts); orig_nb_streams = ic->nb_streams; err = avformat_find_stream_info(ic, opts); for (i = 0; i < orig_nb_streams; i++) av_dict_free(&opts[i]); av_freep(&opts); if (err < 0) { av_log(NULL, AV_LOG_WARNING, "%s: could not find codec parameters\n", is->filename); ret = -1; goto fail; } if (ic->pb) ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end if (seek_by_bytes < 0) seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name); is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0; if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0))) window_title = av_asprintf("%s - %s", t->value, input_filename); /* if seeking requested, we execute it */ if (start_time != AV_NOPTS_VALUE) { int64_t timestamp; timestamp = start_time; /* add the stream start time */ if (ic->start_time != AV_NOPTS_VALUE) timestamp += ic->start_time; ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0); if (ret < 0) { av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n", is->filename, (double)timestamp / AV_TIME_BASE); } } is->realtime = is_realtime(ic); if (show_status) av_dump_format(ic, 0, is->filename, 0); for (i = 0; i < ic->nb_streams; i++) { AVStream *st = ic->streams[i]; enum AVMediaType type = st->codec->codec_type; st->discard = AVDISCARD_ALL; if (wanted_stream_spec[type] && st_index[type] == -1) if (avformat_match_stream_specifier(ic, st, wanted_stream_spec[type]) > 0) st_index[type] = i; } for (i = 0; i < AVMEDIA_TYPE_NB; i++) { if (wanted_stream_spec[i] && st_index[i] == -1) { av_log(NULL, AV_LOG_ERROR, "Stream specifier %s does not match any %s stream\n", wanted_stream_spec[i], av_get_media_type_string(i)); st_index[i] = INT_MAX; } } if (!video_disable) st_index[AVMEDIA_TYPE_VIDEO] = av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, st_index[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); if (!audio_disable) st_index[AVMEDIA_TYPE_AUDIO] = av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, st_index[AVMEDIA_TYPE_AUDIO], st_index[AVMEDIA_TYPE_VIDEO], NULL, 0); if (!video_disable && !subtitle_disable) st_index[AVMEDIA_TYPE_SUBTITLE] = av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, st_index[AVMEDIA_TYPE_SUBTITLE], (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? st_index[AVMEDIA_TYPE_AUDIO] : st_index[AVMEDIA_TYPE_VIDEO]), NULL, 0); is->show_mode = show_mode; if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]]; AVCodecContext *avctx = st->codec; AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL); if (avctx->width) set_default_window_size(avctx->width, avctx->height, sar); } /* open the streams */ if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) { stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]); } ret = -1; if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]); } if (is->show_mode == SHOW_MODE_NONE) is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT; if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) { stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]); } if (is->video_stream < 0 && is->audio_stream < 0) { av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n", is->filename); ret = -1; goto fail; } if (infinite_buffer < 0 && is->realtime) infinite_buffer = 1; for (;;) { if (is->abort_request) break; if (is->paused != is->last_paused) { is->last_paused = is->paused; if (is->paused) is->read_pause_return = av_read_pause(ic); else av_read_play(ic); } #if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL if (is->paused && (!strcmp(ic->iformat->name, "rtsp") || (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) { /* wait 10 ms to avoid trying to get another packet */ /* XXX: horrible */ SDL_Delay(10); continue; } #endif if (is->seek_req) { int64_t seek_target = is->seek_pos; int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN; int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX; // FIXME the +-2 is due to rounding being not done in the correct direction in generation // of the seek_pos/seek_rel variables ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags); if (ret < 0) { av_log(NULL, AV_LOG_ERROR, "%s: error while seeking\n", is->ic->filename); } else { if (is->audio_stream >= 0) { packet_queue_flush(&is->audioq); packet_queue_put(&is->audioq, &flush_pkt); } if (is->subtitle_stream >= 0) { packet_queue_flush(&is->subtitleq); packet_queue_put(&is->subtitleq, &flush_pkt); } if (is->video_stream >= 0) { packet_queue_flush(&is->videoq); packet_queue_put(&is->videoq, &flush_pkt); } if (is->seek_flags & AVSEEK_FLAG_BYTE) { set_clock(&is->extclk, NAN, 0); } else { set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0); } } is->seek_req = 0; is->queue_attachments_req = 1; is->eof = 0; if (is->paused) step_to_next_frame(is); } if (is->queue_attachments_req) { if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) { AVPacket copy; if ((ret = av_copy_packet(&copy, &is->video_st->attached_pic)) < 0) goto fail; packet_queue_put(&is->videoq, &copy); packet_queue_put_nullpacket(&is->videoq, is->video_stream); } is->queue_attachments_req = 0; } /* if the queue are full, no need to read more */ if (infinite_buffer<1 && (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request) && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request || (is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) { /* wait 10 ms */ SDL_LockMutex(wait_mutex); SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); SDL_UnlockMutex(wait_mutex); continue; } if (!is->paused && (!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) && (!is->video_st || (is->viddec.finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) { if (loop != 1 && (!loop || --loop)) { stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); } else if (autoexit) { ret = AVERROR_EOF; goto fail; } } ret = av_read_frame(ic, pkt); if (ret < 0) { if ((ret == AVERROR_EOF || avio_feof(ic->pb)) && !is->eof) { if (is->video_stream >= 0) packet_queue_put_nullpacket(&is->videoq, is->video_stream); if (is->audio_stream >= 0) packet_queue_put_nullpacket(&is->audioq, is->audio_stream); if (is->subtitle_stream >= 0) packet_queue_put_nullpacket(&is->subtitleq, is->subtitle_stream); is->eof = 1; } if (ic->pb && ic->pb->error) break; SDL_LockMutex(wait_mutex); SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); SDL_UnlockMutex(wait_mutex); continue; } else { is->eof = 0; } /* check if packet is in play range specified by user, then queue, otherwise discard */ stream_start_time = ic->streams[pkt->stream_index]->start_time; pkt_ts = pkt->pts == AV_NOPTS_VALUE ? pkt->dts : pkt->pts; pkt_in_play_range = duration == AV_NOPTS_VALUE || (pkt_ts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) * av_q2d(ic->streams[pkt->stream_index]->time_base) - (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000 <= ((double)duration / 1000000); if (pkt->stream_index == is->audio_stream && pkt_in_play_range) { packet_queue_put(&is->audioq, pkt); } else if (pkt->stream_index == is->video_stream && pkt_in_play_range && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) { packet_queue_put(&is->videoq, pkt); } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) { packet_queue_put(&is->subtitleq, pkt); } else { av_free_packet(pkt); } } /* wait until the end */ while (!is->abort_request) { SDL_Delay(100); } ret = 0; fail: /* close each stream */ if (is->audio_stream >= 0) stream_component_close(is, is->audio_stream); if (is->video_stream >= 0) stream_component_close(is, is->video_stream); if (is->subtitle_stream >= 0) stream_component_close(is, is->subtitle_stream); if (ic) { avformat_close_input(&ic); is->ic = NULL; } if (ret != 0) { SDL_Event event; event.type = FF_QUIT_EVENT; event.user.data1 = is; SDL_PushEvent(&event); } SDL_DestroyMutex(wait_mutex); return 0; }