aKode is a simple audio-decoding frame-work that provides a uniform
interface to decode the most common audio-formats. It also has a
direct playback option for a number of audio-outputs.
aKode currently has the following decoder plugins:
mpeg: Uses libMAD to decoder all MPEG 1/2 layer I-III audio.
      GPL licensed and
      patent issue in the US.
mpc:  Decodes musepack aka mpc audio. LGPL licensed.
xiph: Decodes FLAC, Ogg/FLAC, Speex and Ogg Vorbis audio. LGPL
      licensed, patent free.
ffmpeg: Experimental decoder using the FFMPEG decoding library.
      Enables WMA and
      RealAudio
      playback. LGPL and possible patent and reengineering issues
      in the US.

aKode also has the following audio outputs:
oss:  Outputs to the OSS (Open Sound System) of for instance FreeBSD
      and Linux 2.4
alsa: Outputs to ALSA of Linux 2.6 (version 0.9 or 1.x required)
      (dmix is recommended).
sun:  Outputs to Sun OS/Solaris audio device .
jack: Outputs using Jack audio backend.
polyp:Output to the polypaudio server. Recommended for network
      transparent audio.

• Sergey V Turchin

• libakode
• libakode-devel
• libakode-out-jack