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avformat/utils: Set the average frame rate from the r_frame_rate if the stream appears to be cfr

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This permits the average fps to be set in more cases

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-04-28 18:04:38 +02:00
parent 34e7d3c368
commit a215b15815
1 changed files with 9 additions and 0 deletions
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9
libavformat/utils.c
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@ -3023,6 +3023,15 @@ void ff_rfps_calculate(AVFormatContext *ic)
if (num && (!ref_rate.num || (double)num/(12*1001) < 1.01 * av_q2d(ref_rate)))
av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, num, 12*1001, INT_MAX);
}
if ( !st->avg_frame_rate.num
&& st->r_frame_rate.num && st->info->rfps_duration_sum
&& st->info->codec_info_duration <= 0
&& st->info->duration_count > 2
&& fabs(1.0 / (av_q2d(st->r_frame_rate) * av_q2d(st->time_base)) - st->info->rfps_duration_sum / (double)st->info->duration_count) <= 1.0
) {
av_log(ic, AV_LOG_DEBUG, "Setting avg frame rate based on r frame rate\n");
st->avg_frame_rate = st->r_frame_rate;
}
av_freep(&st->info->duration_error);
st->info->last_dts = AV_NOPTS_VALUE;