Am 30.09.2021 um 19:05 schrieb Michael Koch:
I like the sample images for the blend filter that Paul has added here:
https://trac.ffmpeg.org/wiki/Blend
In the documentation for the "opacity" options for the blend filter is
written:
"Only used in combination with pixel component blend modes."
What is a "pixel component blend mode"?
It seems that the opacity options are used for many (or all?) predefined
modes that are set with all_mode=...
however the opacity options aren't used if a user-defined mode is set
with all_expr=...
Is this correct?
Michael
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