Filter ebur128
  EBU R128 scanner.
    Inputs:
       #0: default (audio)
    Outputs:
        dynamic (depending on the options)
ebur128 AVOptions:
  video             <boolean>    ..FV..... set video output (default false)
  size              <image_size> ..FV..... set video size (default "640x480")
  meter             <int>        ..FV..... set scale meter (+9 to +18) (from 9 to 18) (default 9)
  framelog          <int>        ..FVA.... force frame logging level (from INT_MIN to INT_MAX) (default -1)
     info            32           ..FVA.... information logging level
     verbose         40           ..FVA.... verbose logging level
  metadata          <boolean>    ..FVA.... inject metadata in the filtergraph (default false)
  peak              <flags>      ..F.A.... set peak mode (default 0)
     none                         ..F.A.... disable any peak mode
     sample                       ..F.A.... enable peak-sample mode
     true                         ..F.A.... enable true-peak mode
  dualmono          <boolean>    ..F.A.... treat mono input files as dual-mono (default false)
  panlaw            <double>     ..F.A.... set a specific pan law for dual-mono files (from -10 to 0) (default -3.0103)
  target            <int>        ..FV..... set a specific target level in LUFS (-23 to 0) (from -23 to 0) (default -23)
  gauge             <int>        ..FV..... set gauge display type (from 0 to 1) (default momentary)
     momentary       0            ..FV..... display momentary value
     m               0            ..FV..... display momentary value
     shortterm       1            ..FV..... display short-term value
     s               1            ..FV..... display short-term value
  scale             <int>        ..FV..... sets display method for the stats (from 0 to 1) (default absolute)
     absolute        0            ..FV..... display absolute values (LUFS)
     LUFS            0            ..FV..... display absolute values (LUFS)
     relative        1            ..FV..... display values relative to target (LU)
     LU              1            ..FV..... display values relative to target (LU)


