av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
1000000000, track->default_duration, 30000);
#if FF_API_R_FRAME_RATE
- st->r_frame_rate = st->avg_frame_rate;
+ if (st->avg_frame_rate.num < st->avg_frame_rate.den * 1000L)
+ st->r_frame_rate = st->avg_frame_rate;
#endif
}