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ffmpeg: Use input packet duration in vfr/cfr code if available and valid

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Fixes Ticket3052
This commit is contained in:
Michael Niedermayer
2014-11-19 15:44:42 +01:00
parent 4ffec6d933
commit c509202590
2 changed files with 9 additions and 0 deletions
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8
ffmpeg.c
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@@ -893,6 +893,14 @@ static void do_video_out(AVFormatContext *s,
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));
if (!ost->filters_script &&
!ost->filters &&
next_picture &&
ist &&
lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base)) > 0) {
duration = lrintf(av_frame_get_pkt_duration(next_picture) * av_q2d(ist->st->time_base) / av_q2d(enc->time_base));
}
sync_ipts = next_picture->pts;
delta0 = sync_ipts - ost->sync_opts;
delta = delta0 + duration;