avformat/matroskadec: do not trust the default duration to be the real 1/timebase if its less than 5fps

Fixes Ticket3980

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit be695ee389)
This commit is contained in:
Michael Niedermayer 2014-10-08 20:23:40 +02:00 committed by Carl Eugen Hoyos
parent 39518589e7
commit a8a6cdfcd7

View File

@ -1920,7 +1920,8 @@ static int matroska_parse_tracks(AVFormatContext *s)
av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
1000000000, track->default_duration, 30000);
#if FF_API_R_FRAME_RATE
if (st->avg_frame_rate.num < st->avg_frame_rate.den * 1000L)
if ( st->avg_frame_rate.num < st->avg_frame_rate.den * 1000L
&& st->avg_frame_rate.num > st->avg_frame_rate.den * 5L)
st->r_frame_rate = st->avg_frame_rate;
#endif
}