[FFmpeg-user] chroma colour

Michael Koch astroelectronic at t-online.de
Thu Sep 24 15:13:21 EEST 2020

Am 24.09.2020 um 13:50 schrieb Paul Bourke:
> How do I change the colour actually used as the chromakey colour?
> I am creating remap filters to do various image mappings and would
> like undefined pixels to be black rather than green.
> Apologies in advance if I simply didn't search the documentation
> sufficiently well.

Use the "fill" option of the remap filter.
There is an example in chapter 2.66 of my book:


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