[FFmpeg-user] pipe from /dev/video to /dev/video adding a delay - syncing issues

Nicolas George george at nsup.org
Thu Jun 27 11:35:04 EEST 2019

Javier Infante Porro (12019-06-26):
> But whenever i try to push the stream back to the the /dev/video20
> device, it works, but the countdown goes real fast (like 10x faster),
> and then video tries to catch up and keeps around a 2 second delay: 

For a regular countdown, you need an accurate timestamp. You are killing
your timestamps with the setpts filter: why do you do it?


  Nicolas George
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