[FFmpeg-user] 'mix' filter questions

[Michael Koch]

Am 20.03.2021 um 04:31 schrieb Mark Filipak (ffmpeg):
> :         :       :
>               :         :       Specify scale, if it is set it will be 
> multiplied with sum of each weight multiplied with pixel values to 
> give final destination pixel value. By default scale is auto scaled to 
> sum of weights.

Correct would be "By default scale is set to (1 / sum_of weights)".
The same error is also in the documentation of the "tmix" filter.

>   Is there one scale for all inputs or one scale per input?

One for all inputs.

> Criticism (re, "Specify weight"): "If number of weights is smaller 
> than number of frames" -- Huh? 

"number of inputs"
The same error is also in the documentation of the "tmix" filter.

Michael