static void do_video_out(AVFormatContext *s, OutputStream *ost, InputStream *ist, AVFrame *in_picture, int *frame_size, float quality) { int nb_frames, i, ret, format_video_sync; AVFrame *final_picture; AVCodecContext *enc; double sync_ipts; enc = ost->st->codec; sync_ipts = get_sync_ipts(ost) / av_q2d(enc->time_base); /* by default, we output a single frame */ nb_frames = 1; *frame_size = 0; format_video_sync = video_sync_method; if (format_video_sync < 0) format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? 0 : (s->oformat->flags & AVFMT_VARIABLE_FPS) ? 2 : 1; if (format_video_sync) { double vdelta = sync_ipts - ost->sync_opts; //FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c if (vdelta < -1.1) nb_frames = 0; else if (format_video_sync == 2) { if(vdelta<=-0.6){ nb_frames=0; }else if(vdelta>0.6) ost->sync_opts= lrintf(sync_ipts); }else if (vdelta > 1.1) nb_frames = lrintf(vdelta); //fprintf(stderr, "vdelta:%f, ost->sync_opts:%"PRId64", ost->sync_ipts:%f nb_frames:%d\n", vdelta, ost->sync_opts, get_sync_ipts(ost), nb_frames); if (nb_frames == 0){ ++nb_frames_drop; 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); } }else ost->sync_opts= lrintf(sync_ipts); nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number); if (nb_frames <= 0) return; do_video_resample(ost, ist, in_picture, &final_picture); /* duplicates frame if needed */ for(i=0;i<nb_frames;i++) { AVPacket pkt; av_init_packet(&pkt); pkt.stream_index= ost->index; if (s->oformat->flags & AVFMT_RAWPICTURE) { /* 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 *)final_picture; pkt.size= sizeof(AVPicture); pkt.pts= av_rescale_q(ost->sync_opts, enc->time_base, ost->st->time_base); pkt.flags |= AV_PKT_FLAG_KEY; write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters); } else { AVFrame big_picture; big_picture= *final_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; // big_picture.pts = AV_NOPTS_VALUE; big_picture.pts= ost->sync_opts; // big_picture.pts= av_rescale(ost->sync_opts, AV_TIME_BASE*(int64_t)enc->time_base.num, enc->time_base.den); //av_log(NULL, AV_LOG_DEBUG, "%"PRId64" -> encoder\n", ost->sync_opts); 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++; } ret = avcodec_encode_video(enc, bit_buffer, bit_buffer_size, &big_picture); if (ret < 0) { av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n"); exit_program(1); } if(ret>0){ pkt.data= bit_buffer; pkt.size= ret; if(enc->coded_frame->pts != AV_NOPTS_VALUE) pkt.pts= av_rescale_q(enc->coded_frame->pts, enc->time_base, ost->st->time_base); /*av_log(NULL, AV_LOG_DEBUG, "encoder -> %"PRId64"/%"PRId64"\n", pkt.pts != AV_NOPTS_VALUE ? av_rescale(pkt.pts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1, pkt.dts != AV_NOPTS_VALUE ? av_rescale(pkt.dts, enc->time_base.den, AV_TIME_BASE*(int64_t)enc->time_base.num) : -1);*/ if(enc->coded_frame->key_frame) pkt.flags |= AV_PKT_FLAG_KEY; write_frame(s, &pkt, ost->st->codec, ost->bitstream_filters); *frame_size = ret; video_size += ret; //fprintf(stderr,"\nFrame: %3d size: %5d type: %d", // enc->frame_number-1, ret, enc->pict_type); /* if two pass, output log */ if (ost->logfile && enc->stats_out) { fprintf(ost->logfile, "%s", enc->stats_out); } } } ost->sync_opts++; ost->frame_number++; } }