static void video_refresh(void *opaque) { VideoState *is = opaque; VideoPicture *vp; double time; SubPicture *sp, *sp2; if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime) check_external_clock_speed(is); if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) video_display(is); if (is->video_st) { if (is->force_refresh) pictq_prev_picture(is); retry: if (is->pictq_size == 0) { SDL_LockMutex(is->pictq_mutex); if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) { update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos, 0); is->frame_last_dropped_pts = AV_NOPTS_VALUE; } SDL_UnlockMutex(is->pictq_mutex); // nothing to do, no picture to display in the queue } else { double last_duration, duration, delay; /* dequeue the picture */ vp = &is->pictq[is->pictq_rindex]; if (vp->serial != is->videoq.serial) { pictq_next_picture(is); goto retry; } if (is->paused) goto display; /* compute nominal last_duration */ last_duration = vp->pts - is->frame_last_pts; if (last_duration > 0 && last_duration < is->max_frame_duration) { /* if duration of the last frame was sane, update last_duration in video state */ is->frame_last_duration = last_duration; } delay = compute_target_delay(is->frame_last_duration, is); time= av_gettime()/1000000.0; if (time < is->frame_timer + delay) return; if (delay > 0) is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay)); SDL_LockMutex(is->pictq_mutex); update_video_pts(is, vp->pts, vp->pos, vp->serial); SDL_UnlockMutex(is->pictq_mutex); if (is->pictq_size > 1) { VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE]; duration = nextvp->pts - vp->pts; if(!is->step && (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){ is->frame_drops_late++; pictq_next_picture(is); goto retry; } } if (is->subtitle_st) { if (is->subtitle_stream_changed) { SDL_LockMutex(is->subpq_mutex); while (is->subpq_size) { free_subpicture(&is->subpq[is->subpq_rindex]); /* update queue size and signal for next picture */ if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) is->subpq_rindex = 0; is->subpq_size--; } is->subtitle_stream_changed = 0; SDL_CondSignal(is->subpq_cond); SDL_UnlockMutex(is->subpq_mutex); } else { if (is->subpq_size > 0) { sp = &is->subpq[is->subpq_rindex]; if (is->subpq_size > 1) sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE]; else sp2 = NULL; if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) { free_subpicture(sp); /* update queue size and signal for next picture */ if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) is->subpq_rindex = 0; SDL_LockMutex(is->subpq_mutex); is->subpq_size--; SDL_CondSignal(is->subpq_cond); SDL_UnlockMutex(is->subpq_mutex); } } } } display: /* display picture */ if (!display_disable && is->show_mode == SHOW_MODE_VIDEO) video_display(is); pictq_next_picture(is); if (is->step && !is->paused) stream_toggle_pause(is); } } is->force_refresh = 0; if (show_status) { static int64_t last_time; int64_t cur_time; int aqsize, vqsize, sqsize; double av_diff; cur_time = av_gettime(); if (!last_time || (cur_time - last_time) >= 30000) { aqsize = 0; vqsize = 0; sqsize = 0; if (is->audio_st) aqsize = is->audioq.size; if (is->video_st) vqsize = is->videoq.size; if (is->subtitle_st) sqsize = is->subtitleq.size; av_diff = 0; if (is->audio_st && is->video_st) av_diff = get_audio_clock(is) - get_video_clock(is); printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", get_master_clock(is), av_diff, is->frame_drops_early + is->frame_drops_late, aqsize / 1024, vqsize / 1024, sqsize, is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0, is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0); fflush(stdout); last_time = cur_time; } } }