Filter graphmonitor
  Show various filtergraph stats.
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
graphmonitor AVOptions:
  size              <image_size> ..FV...... set monitor size (default "hd720")
  s                 <image_size> ..FV...... set monitor size (default "hd720")
  opacity           <float>      ..FV...... set video opacity (from 0 to 1) (default 0.9)
  o                 <float>      ..FV...... set video opacity (from 0 to 1) (default 0.9)
  mode              <int>        ..FV...... set mode (from 0 to 1) (default full)
     full            0            ..FV......
     compact         1            ..FV......
  m                 <int>        ..FV...... set mode (from 0 to 1) (default full)
     full            0            ..FV......
     compact         1            ..FV......
  flags             <flags>      ..FV...... set flags (default queue)
     queue                        ..FV......
     frame_count_in               ..FV......
     frame_count_out              ..FV......
     pts                          ..FV......
     time                         ..FV......
     timebase                     ..FV......
     format                       ..FV......
     size                         ..FV......
     rate                         ..FV......
     eof                          ..FV......
  f                 <flags>      ..FV...... set flags (default queue)
     queue                        ..FV......
     frame_count_in               ..FV......
     frame_count_out              ..FV......
     pts                          ..FV......
     time                         ..FV......
     timebase                     ..FV......
     format                       ..FV......
     size                         ..FV......
     rate                         ..FV......
     eof                          ..FV......
  rate              <video_rate> ..FV...... set video rate (default "25")
  r                 <video_rate> ..FV...... set video rate (default "25")


