Filter w3fdif
  Apply Martin Weston three field deinterlace.
    slice threading supported
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
w3fdif AVOptions:
  filter            <int>        ..FV.....T. specify the filter (from 0 to 1) (default complex)
     simple          0            ..FV.....T.
     complex         1            ..FV.....T.
  mode              <int>        ..FV.....T. specify the interlacing mode (from 0 to 1) (default field)
     frame           0            ..FV.....T. send one frame for each frame
     field           1            ..FV.....T. send one frame for each field
  parity            <int>        ..FV.....T. specify the assumed picture field parity (from -1 to 1) (default auto)
     tff             0            ..FV.....T. assume top field first
     bff             1            ..FV.....T. assume bottom field first
     auto            -1           ..FV.....T. auto detect parity
  deint             <int>        ..FV.....T. specify which frames to deinterlace (from 0 to 1) (default all)
     all             0            ..FV.....T. deinterlace all frames
     interlaced      1            ..FV.....T. only deinterlace frames marked as interlaced

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

