Filter silenceremove
  Remove silence.
    Inputs:
       #0: default (audio)
    Outputs:
       #0: default (audio)
silenceremove AVOptions:
  start_periods     <int>        ..F.A... (from 0 to 9000) (default 0)
  start_duration    <duration>   ..F.A... (default 0)
  start_threshold   <double>     ..F.A... (from 0 to DBL_MAX) (default 0)
  stop_periods      <int>        ..F.A... (from -9000 to 9000) (default 0)
  stop_duration     <duration>   ..F.A... (default 0)
  stop_threshold    <double>     ..F.A... (from 0 to DBL_MAX) (default 0)
  leave_silence     <boolean>    ..F.A... (default false)
  detection         <int>        ..F.A... (from 0 to 1) (default rms)
     peak                         ..F.A...
     rms                          ..F.A...
  window            <double>     ..F.A... (from 0 to 10) (default 0.02)


