[FFmpeg-user] Cut part of a video, crop it and blackout parts of it

Cecil Westerhof Cecil at decebal.nl
Mon Apr 5 21:01:15 EEST 2021

Michael Koch <astroelectronic at t-online.de> writes:

> If you want to cover the whole frame size, you could also use this (for
> 50% gray):
> eq=enable='bitor(between(t, 0, 2),between(t, 339, 342))':contrast=0
> or add :brightness=-0.5 if you want black.
> It might be faster than drawbox.

It is not faster. It also keeps a 'shadow' of the video. I will play a
little more with it, but the change is high that I go back to drawbox.

Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof

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