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ffmpeg: Improve filter input fps selection heuristic. 

This fixes a broken file that has a incorrect timebase at the codec level.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-12-16 05:09:23 +01:00
parent 1e901ffc61
commit 718eab527b
1 changed files with 3 additions and 1 deletions
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4
ffmpeg_filter.c
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@ -562,8 +562,10 @@ static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
if (!ist->framerate.num && ist->st->codec->ticks_per_frame>1) {
AVRational codec_fr = av_inv_q(ist->st->codec->time_base);
AVRational avg_fr = ist->st->avg_frame_rate;
codec_fr.den *= ist->st->codec->ticks_per_frame;
if(codec_fr.num>0 && codec_fr.den>0 && av_q2d(codec_fr) < av_q2d(fr)*0.7)
if ( codec_fr.num>0 && codec_fr.den>0 && av_q2d(codec_fr) < av_q2d(fr)*0.7
&& fabs(1.0 - av_q2d(av_div_q(avg_fr, fr)))>0.1)
fr = codec_fr;
}