Muxer wav [WAV / WAVE (Waveform Audio)]:
    Common extensions: wav.
    Mime type: audio/x-wav.
    Default audio codec: pcm_s16le.
WAV muxer AVOptions:
  -write_bext        <boolean>    E....... Write BEXT chunk. (default false)
  -write_peak        <int>        E....... Write Peak Envelope chunk. (from 0 to 2) (default off)
     off                          E....... Do not write peak chunk.
     on                           E....... Append peak chunk after wav data.
     only                         E....... Write only peak chunk, omit wav data.
  -rf64              <int>        E....... Use RF64 header rather than RIFF for large files. (from -1 to 1) (default never)
     auto                         E....... Write RF64 header if file grows large enough.
     always                       E....... Always write RF64 header regardless of file size.
     never                        E....... Never write RF64 header regardless of file size.
  -peak_block_size   <int>        E....... Number of audio samples used to generate each peak frame. (from 0 to 65536) (default 256)
  -peak_format       <int>        E....... The format of the peak envelope data (1: uint8, 2: uint16). (from 1 to 2) (default 2)
  -peak_ppv          <int>        E....... Number of peak points per peak value (1 or 2). (from 1 to 2) (default 2)


