Filter telecine
  Apply a telecine pattern.
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
telecine AVOptions:
  first_field       <int>        ..FV..... select first field (from 0 to 1) (default top)
     top             0            ..FV..... select top field first
     t               0            ..FV..... select top field first
     bottom          1            ..FV..... select bottom field first
     b               1            ..FV..... select bottom field first
  pattern           <string>     ..FV..... pattern that describe for how many fields a frame is to be displayed (default "23")


