[FFmpeg-user] Best place for despill filter?

Michael Koch astroelectronic at t-online.de
Mon Nov 16 13:13:26 EET 2020


When I overlay a bluescreen foreground video over a background video, 
which is the best place for the despill filter? (a) before colorkey or 
(b) after colorkey or (c) after overlay?

[foreground](a),colorkey,(b)[fg];[background][fg]overlay,(c)

I found here an example for (c) but I doubt that this makes sense:
https://gist.github.com/kerbeh/fbe0cd0d89c424708c119e0a0d00ca88

Michael



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