[MPlayer-users] dump dvd audio -> mp3

[Giacomo Comes]

On Wed, Nov 17, 2004 at 02:15:20PM -0500, The Wanderer wrote:
> Aaron Peterson wrote:
> 
> >How might I go about dumping just the audio from a dvd to a nice vbr
> >mp3 with mplayer?  or can I do that?
> 
> You cannot do that directly, no.
> 
> The simplest way to do it is
> 
> ==
> mplayer <options to play the DVD> -ao pcm -aofile <filename>.wav
> ==
> 
> and then encode the resulting WAV file with an MP3 encoder of your
> choice. This is not necessarily the ideal way of doing it, but it will
> get the job done.
> 
> 
> A more complicated way of doing it would be something like
> 
> ==
> mencoder <options to play the DVD> -oac mp3 -ovc <anything> -o 
> <filename>.avi
> ==
> 
> and then
> 
> ==
> mplayer -dumpaudio <filename>.avi -dumpfile <filename>.mp3
> ==
> 
> but I'm not nearly so sure that that will produce a usable file, and in
> any case it will either eat up gobs of disk space (if you use -ovc copy)
> or take a rather long time (if you use any other -ovc value, requiring
> MEncoder to transcode the video). It may produce a somewhat
> higher-quality final product, because I think there's one fewer
> transcode step for the audio involved, but that's about its only
> advantage AFAIK.

The best way to use mencoder is:

mencoder -ovc frameno -oac mp3lame -lameopts <your mp3 encoding options> -o <filename>.avi
and then
mplayer -dumpaudio <filename>.avi -dumpfile <filename>.mp3

With -ovc frameno no video is dumped/encoded. 
<filename>.avi just contains the audio stream (mp3).

Giacomo