Filter lut2
  Compute and apply a lookup table from two video inputs.
    slice threading supported
    Inputs:
       #0: srcx (video)
       #1: srcy (video)
    Outputs:
       #0: default (video)
lut2 AVOptions:
  c0                <string>     ..FV..... set component #0 expression (default "x")
  c1                <string>     ..FV..... set component #1 expression (default "x")
  c2                <string>     ..FV..... set component #2 expression (default "x")
  c3                <string>     ..FV..... set component #3 expression (default "x")
  d                 <int>        ..FV..... set output depth (from 0 to 16) (default 0)

framesync AVOptions:
  eof_action        <int>        ..FV..... Action to take when encountering EOF from secondary input  (from 0 to 2) (default repeat)
     repeat          0            ..FV..... Repeat the previous frame.
     endall          1            ..FV..... End both streams.
     pass            2            ..FV..... Pass through the main input.
  shortest          <boolean>    ..FV..... force termination when the shortest input terminates (default false)
  repeatlast        <boolean>    ..FV..... extend last frame of secondary streams beyond EOF (default true)

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

