[FFmpeg-devel] [PATCH 3/3] avdevice: use av_gettime_relative() for timestamps

Nicolas George george at nsup.org
Sun Feb 7 17:30:47 EET 2021


Kieran Kunhya (12021-02-07):
> It is wrong to suggest that the clock of an IP webcam has any relation at
> all to the PC clock both absolute or relative.

It is not wrong to let users observe that their particular model of IP
webcam uses Unix timestamps and is correctly synchronized. This is a
common practice, after all.

> This is as usual a major flaw in v4l2. The monotonic clock should always be
> used. It's the least-worst clock.

Care to justify how giving the user an option is worse than not?

Care to explain how you propose to synchronize device captured on
different computers?

Regards,

-- 
  Nicolas George
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