Hi.

>
> Mind checking my formula? :)
>
>  PTS_delta = av_rescale_q(timestamps_delta, AV_TIME_BASE_Q, time_base);
>
>  where timestamp_delta is difference in milliseconds between the
>  previous and current frame.
>  and PTS_delta is the difference for the new PTS.
>
>  Just one question here - the used timebase value is from stream
>  structure. The den member is always equal to 90,000, no mater what FPS
>  I set for the codec time base den memeber. Does it mean it's unrelated
>  to codec timebase, hence the approach work safely on every possible
>  frame rate? Or I misunderstand it's purpose.
>
>  Thanks again for all your help.
>


Well, I tried this approach, and have now huge pixel trails for every
movement on screen, which gets cleared every so often (probably by
intra-frame). What is the reason behind these trails?

Regards.
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