Filter uspp
  Apply Ultra Simple / Slow Post-processing filter.
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
uspp AVOptions:
  quality           <int>        ..FV..... set quality (from 0 to 8) (default 3)
  qp                <int>        ..FV..... force a constant quantizer parameter (from 0 to 63) (default 0)
  use_bframe_qp     <boolean>    ..FV..... use B-frames' QP (default false)

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

