Filter cas
  Contrast Adaptive Sharpen.
    slice threading supported
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
cas AVOptions:
  strength          <float>      ..FV.....T set the sharpening strength (from 0 to 1) (default 0)
  planes            <flags>      ..FV.....T set what planes to filter (default 7)

This filter has support for timeline through the 'enable' option.

