if (!ost->frame_rate.num)
ost->frame_rate = ist->framerate;
- ost->st->avg_frame_rate = ost->frame_rate;
+
+ if (ost->frame_rate.num)
+ ost->st->avg_frame_rate = ost->frame_rate;
+ else
+ ost->st->avg_frame_rate = ist->st->avg_frame_rate;
ret = avformat_transfer_internal_stream_timing_info(of->ctx->oformat, ost->st, ist->st, copy_tb);
if (ret < 0)
return ret;
// copy timebase while removing common factors
- if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
- ost->st->time_base = av_add_q(av_stream_get_codec_timebase(ost->st), (AVRational){0, 1});
+ if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0) {
+ if (ost->frame_rate.num)
+ ost->st->time_base = av_inv_q(ost->frame_rate);
+ else
+ ost->st->time_base = av_add_q(av_stream_get_codec_timebase(ost->st), (AVRational){0, 1});
+ }
// copy estimated duration as a hint to the muxer
if (ost->st->duration <= 0 && ist->st->duration > 0)