Muxer alp [LEGO Racers ALP]:
    Common extensions: tun,pcm.
    Default audio codec: adpcm_ima_alp.
alp AVOptions:
  -type              <int>        E...A..... set file type (from 0 to 2) (default auto)
     auto            0            E...A..... autodetect based on file extension
     tun             1            E...A..... force .tun, used for music
     pcm             2            E...A..... force .pcm, used for sfx


