[Linux-Biella] estrarre MP3 da MP4

[vallini.daniele a bilug.linux.it]

Fri, Jul 30, 2010 at 10:11:06AM +0200  PaulTT ha scritto: 

> cmq per tirar fuori l'audio da altro non ti serve mencoder:
> mplayer -dumpaudio -dumpfile pippo.mp3 pluto.mp4
> sempre che l'audio sia gia' in mp3, ma di solito se e' su iutube e' cosi'

Urka, fatto strano, esce il file mp3 ma non trovo santo che lo legga, ne'
mplayer ne' alsaplayer e la creazione del file parrebbe regolare.

dan a due:~$ mplayer -dumpaudio -dumpfile /home/dan/musica/mouret.mp3 /home/dan/musica/mouret.mp4
MPlayer dev-SVN-r26940
CPU: Intel(R) Pentium(R) 4 CPU 2.66GHz (Family: 15, Model: 4, Stepping: 1)
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 /home/dan/musica/mouret.mp4.
libavformat file format detected.
[lavf] Audio stream found, -aid 0
[lavf] Video stream found, -vid 1
VIDEO:  [avc1]  1280x720  24bpp  6.000 fps    0.0 kbps ( 0.0 kbyte/s)
Core dumped ;)

Exiting... (End of file)
dan a due:~$