Filter showspectrumpic
  Convert input audio to a spectrum video output single picture.
    slice threading supported
    Inputs:
       #0: default (audio)
    Outputs:
       #0: default (video)
showspectrumpic AVOptions:
  size              <image_size> ..FV..... set video size (default "4096x2048")
  s                 <image_size> ..FV..... set video size (default "4096x2048")
  mode              <int>        ..FV..... set channel display mode (from 0 to 1) (default combined)
     combined                     ..FV..... combined mode
     separate                     ..FV..... separate mode
  color             <int>        ..FV..... set channel coloring (from 0 to 14) (default intensity)
     channel                      ..FV..... separate color for each channel
     intensity                    ..FV..... intensity based coloring
     rainbow                      ..FV..... rainbow based coloring
     moreland                     ..FV..... moreland based coloring
     nebulae                      ..FV..... nebulae based coloring
     fire                         ..FV..... fire based coloring
     fiery                        ..FV..... fiery based coloring
     fruit                        ..FV..... fruit based coloring
     cool                         ..FV..... cool based coloring
     magma                        ..FV..... magma based coloring
     green                        ..FV..... green based coloring
     viridis                      ..FV..... viridis based coloring
     plasma                       ..FV..... plasma based coloring
     cividis                      ..FV..... cividis based coloring
     terrain                      ..FV..... terrain based coloring
  scale             <int>        ..FV..... set display scale (from 0 to 5) (default log)
     lin                          ..FV..... linear
     sqrt                         ..FV..... square root
     cbrt                         ..FV..... cubic root
     log                          ..FV..... logarithmic
     4thrt                        ..FV..... 4th root
     5thrt                        ..FV..... 5th root
  fscale            <int>        ..FV..... set frequency scale (from 0 to 1) (default lin)
     lin                          ..FV..... linear
     log                          ..FV..... logarithmic
  saturation        <float>      ..FV..... color saturation multiplier (from -10 to 10) (default 1)
  win_func          <int>        ..FV..... set window function (from 0 to 19) (default hann)
     rect                         ..FV..... Rectangular
     bartlett                     ..FV..... Bartlett
     hann                         ..FV..... Hann
     hanning                      ..FV..... Hanning
     hamming                      ..FV..... Hamming
     blackman                     ..FV..... Blackman
     welch                        ..FV..... Welch
     flattop                      ..FV..... Flat-top
     bharris                      ..FV..... Blackman-Harris
     bnuttall                     ..FV..... Blackman-Nuttall
     bhann                        ..FV..... Bartlett-Hann
     sine                         ..FV..... Sine
     nuttall                      ..FV..... Nuttall
     lanczos                      ..FV..... Lanczos
     gauss                        ..FV..... Gauss
     tukey                        ..FV..... Tukey
     dolph                        ..FV..... Dolph-Chebyshev
     cauchy                       ..FV..... Cauchy
     parzen                       ..FV..... Parzen
     poisson                      ..FV..... Poisson
     bohman                       ..FV..... Bohman
  orientation       <int>        ..FV..... set orientation (from 0 to 1) (default vertical)
     vertical                     ..FV.....
     horizontal                   ..FV.....
  gain              <float>      ..FV..... set scale gain (from 0 to 128) (default 1)
  legend            <boolean>    ..FV..... draw legend (default true)
  rotation          <float>      ..FV..... color rotation (from -1 to 1) (default 0)
  start             <int>        ..FV..... start frequency (from 0 to INT_MAX) (default 0)
  stop              <int>        ..FV..... stop frequency (from 0 to INT_MAX) (default 0)


