SMPEG is a free MPEG1 video player library with sound support. Video playback is based on the ubiquitous Berkeley MPEG player, mpeg_play v2.2.
Audio is played through a slightly modified mpegsound library, part of Splay v0.8.2.
SMPEG supports MPEG audio (MP3), MPEG-1 video, and MPEG system streams.
SDL은 mp3를 재생시키기 위해 SDL_mixer 라이브러리를 사용하는데, SDL_mixer는 기본적으로 mp3 decoder로 SMPEG 라이브러리를 사용함.