Encoder libtwolame [libtwolame MP2 (MPEG audio layer 2)]:
    General capabilities: delay 
    Threading capabilities: none
    Supported sample rates: 16000 22050 24000 32000 44100 48000
    Supported sample formats: flt fltp s16 s16p
    Supported channel layouts: mono stereo
libtwolame encoder AVOptions:
  -mode              <int>        E...A.... Mpeg Mode (from -1 to 3) (default auto)
     auto                         E...A....
     stereo                       E...A....
     joint_stereo                 E...A....
     dual_channel                 E...A....
     mono                         E...A....
  -psymodel          <int>        E...A.... Psychoacoustic Model (from -1 to 4) (default 3)
  -energy_levels     <int>        E...A.... enable energy levels (from 0 to 1) (default 0)
  -error_protection  <int>        E...A.... enable CRC error protection (from 0 to 1) (default 0)
  -copyright         <int>        E...A.... set MPEG Audio Copyright flag (from 0 to 1) (default 0)
  -original          <int>        E...A.... set MPEG Audio Original flag (from 0 to 1) (default 0)
  -verbosity         <int>        E...A.... set library optput level (0-10) (from 0 to 10) (default 0)


