audio
Извлекаем аудио из видео файла
$ mplayer -dumpaudio -dumpfile tol-osen.mp3 -audio-demuxer 17 TOL_-_Osen.mpg
MPlayer dev-SVN-rUNKNOWN-4.1.3 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz (Family: 6, Model: 15, Stepping: 6)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing TOL_-_Osen.mpg.
MPEG-PS file format detected.
Core dumped ;)
Exiting... (End of file)
$UPT:
перекодировать таки в mp3 после того как звуковая дорожка была извлечена:
$ ffmpeg -i ~/tol-osen.mp3 -acodec libmp3lame ~/tol-osen2.mp3