[MPlayer-users] Re: Mencoder lavc/mpeg4 output - no audio under WIn32 ?!

[Stefan Seyfried]

Adam Nielsen <a.nielsen at optushome.com.au> writes:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> At a rough guess, I think the problem is -oac copy.  With your second command 
> you probably wouldn't need to specify it at all, as audio isn't used during 
> the first video encoding pass, and when you specify it in your third command, 
> it's copying the audio out of the MPEG file (in I assume MPEG2, layer-2 

no, this is the (in)famous three pass method, audio is taken from
frameno.avi if it is present.

> What happens if you move the -oac mp3lame and -lameopts to the third command?

still worth a try, maybe there is a bug in 3pass code.

> Does that work?  Basically I think the problem is the first command is 
> generating the MP3 audio, but then it's just being ignored, and not saved 
> into the final AVI file.  (If you play the final AVI with mplayer, it should 
> tell you what format the audio is in.)

good idea, try that.
-- 
 Stefan Seyfried, seife at gmane0305.slipkontur.de
+----------------------------------------------+

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