static void do_video_out(AVFormatContext *s, OutputStream *ost, AVFrame *in_picture, float quality) { int ret, format_video_sync; AVPacket pkt; AVCodecContext *enc = ost->st->codec; int nb_frames; double sync_ipts, delta; double duration = 0; int frame_size = 0; InputStream *ist = NULL; if (ost->source_index >= 0) ist = input_streams[ost->source_index]; if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num) duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)); sync_ipts = in_picture->pts; delta = sync_ipts - ost->sync_opts + duration; /* by default, we output a single frame */ nb_frames = 1; format_video_sync = video_sync_method; if (format_video_sync == VSYNC_AUTO) format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : 1; switch (format_video_sync) { case VSYNC_CFR: // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c if (delta < -1.1) nb_frames = 0; else if (delta > 1.1) nb_frames = lrintf(delta); break; case VSYNC_VFR: if (delta <= -0.6) nb_frames = 0; else if (delta > 0.6) ost->sync_opts = lrint(sync_ipts); break; case VSYNC_DROP: case VSYNC_PASSTHROUGH: ost->sync_opts = lrint(sync_ipts); break; default: av_assert0(0); nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number); if (nb_frames == 0) { av_log(NULL, AV_LOG_VERBOSE, "*** drop!\n"); } else if (nb_frames > 1) { nb_frames_dup += nb_frames - 1; av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1); duplicate_frame: av_init_packet(&pkt); pkt.data = NULL; pkt.size = 0; in_picture->pts = ost->sync_opts; if (s->oformat->flags & AVFMT_RAWPICTURE && enc->codec->id == CODEC_ID_RAWVIDEO) { /* raw pictures are written as AVPicture structure to avoid any copies. We support temporarily the older method. */ enc->coded_frame->interlaced_frame = in_picture->interlaced_frame; enc->coded_frame->top_field_first = in_picture->top_field_first; pkt.data = (uint8_t *)in_picture; pkt.size = sizeof(AVPicture); pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base); pkt.flags |= AV_PKT_FLAG_KEY; write_frame(s, &pkt, ost); video_size += pkt.size; } else { int got_packet; AVFrame big_picture; big_picture = *in_picture; /* better than nothing: use input picture interlaced settings */ big_picture.interlaced_frame = in_picture->interlaced_frame; if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME)) { if (ost->top_field_first == -1) big_picture.top_field_first = in_picture->top_field_first; else big_picture.top_field_first = !!ost->top_field_first; /* handles same_quant here. This is not correct because it may not be a global option */ big_picture.quality = quality; if (!enc->me_threshold) big_picture.pict_type = 0; if (ost->forced_kf_index < ost->forced_kf_count && big_picture.pts >= ost->forced_kf_pts[ost->forced_kf_index]) { big_picture.pict_type = AV_PICTURE_TYPE_I; ost->forced_kf_index++; update_benchmark(NULL); ret = avcodec_encode_video2(enc, &pkt, &big_picture, &got_packet); update_benchmark("encode_video %d.%d", ost->file_index, ost->index); if (ret < 0) { av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n"); exit_program(1); if (got_packet) { if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY)) pkt.pts = ost->sync_opts; if (pkt.pts != AV_NOPTS_VALUE) pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base); if (pkt.dts != AV_NOPTS_VALUE) pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base); if (debug_ts) { av_log(NULL, AV_LOG_INFO, "encoder -> type:video " "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n", av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base), av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base)); write_frame(s, &pkt, ost); frame_size = pkt.size; video_size += pkt.size; av_free_packet(&pkt); /* if two pass, output log */ if (ost->logfile && enc->stats_out) { fprintf(ost->logfile, "%s", enc->stats_out); ost->sync_opts++; /* * For video, number of frames in == number of packets out. * But there may be reordering, so we can't throw away frames on encoder * flush, we need to limit them here, before they go into encoder. */ ost->frame_number++; if(--nb_frames) goto duplicate_frame; if (vstats_filename && frame_size) do_video_stats(output_files[ost->file_index]->ctx, ost, frame_size);