Filter waveform
  Video waveform monitor.
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
waveform AVOptions:
  mode              <int>        ..FV.... set mode (from 0 to 1) (default column)
     row                          ..FV....
     column                       ..FV....
  m                 <int>        ..FV.... set mode (from 0 to 1) (default column)
     row                          ..FV....
     column                       ..FV....
  intensity         <float>      ..FV.... set intensity (from 0 to 1) (default 0.04)
  i                 <float>      ..FV.... set intensity (from 0 to 1) (default 0.04)
  mirror            <boolean>    ..FV.... set mirroring (default true)
  r                 <boolean>    ..FV.... set mirroring (default true)
  display           <int>        ..FV.... set display mode (from 0 to 2) (default stack)
     overlay                      ..FV....
     stack                        ..FV....
     parade                       ..FV....
  d                 <int>        ..FV.... set display mode (from 0 to 2) (default stack)
     overlay                      ..FV....
     stack                        ..FV....
     parade                       ..FV....
  components        <int>        ..FV.... set components to display (from 1 to 15) (default 1)
  c                 <int>        ..FV.... set components to display (from 1 to 15) (default 1)
  envelope          <int>        ..FV.... set envelope to display (from 0 to 3) (default none)
     none                         ..FV....
     instant                      ..FV....
     peak                         ..FV....
     peak+instant                 ..FV....
  e                 <int>        ..FV.... set envelope to display (from 0 to 3) (default none)
     none                         ..FV....
     instant                      ..FV....
     peak                         ..FV....
     peak+instant                 ..FV....
  filter            <int>        ..FV.... set filter (from 0 to 5) (default lowpass)
     lowpass                      ..FV....
     flat                         ..FV....
     aflat                        ..FV....
     chroma                       ..FV....
     color                        ..FV....
     acolor                       ..FV....
  f                 <int>        ..FV.... set filter (from 0 to 5) (default lowpass)
     lowpass                      ..FV....
     flat                         ..FV....
     aflat                        ..FV....
     chroma                       ..FV....
     color                        ..FV....
     acolor                       ..FV....
  graticule         <int>        ..FV.... set graticule (from 0 to 1) (default none)
     none                         ..FV....
     green                        ..FV....
  g                 <int>        ..FV.... set graticule (from 0 to 1) (default none)
     none                         ..FV....
     green                        ..FV....
  opacity           <float>      ..FV.... set graticule opacity (from 0 to 1) (default 0.75)
  o                 <float>      ..FV.... set graticule opacity (from 0 to 1) (default 0.75)
  flags             <flags>      ..FV.... set graticule flags (default numbers)
     numbers                      ..FV.... draw numbers
     dots                         ..FV.... draw dots instead of lines
  fl                <flags>      ..FV.... set graticule flags (default numbers)
     numbers                      ..FV.... draw numbers
     dots                         ..FV.... draw dots instead of lines
  scale             <int>        ..FV.... set scale (from 0 to 2) (default digital)
     digital                      ..FV....
     millivolts                   ..FV....
     ire                          ..FV....
  s                 <int>        ..FV.... set scale (from 0 to 2) (default digital)
     digital                      ..FV....
     millivolts                   ..FV....
     ire                          ..FV....
  bgopacity         <float>      ..FV.... set background opacity (from 0 to 1) (default 0.75)
  b                 <float>      ..FV.... set background opacity (from 0 to 1) (default 0.75)


