Filter pp7
  Apply Postprocessing 7 filter.
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
pp7 AVOptions:
  qp                <int>        ..FV..... force a constant quantizer parameter (from 0 to 64) (default 0)
  mode              <int>        ..FV..... set thresholding mode (from 0 to 2) (default medium)
     hard            0            ..FV..... hard thresholding
     soft            1            ..FV..... soft thresholding
     medium          2            ..FV..... medium thresholding

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

