[MEncoder-users] AVI with more audio streams

[Duncan Webb]

SZABO Zsolt wrote:
> It is not clear for me from the docs: can mencoder create AVI file
> that is containing more than one audio stream? If yes how?

No it's a limitation of the AVI container.

Matroska containers can, plus the can have chapters, subtitles and metadata.

> 
> E.g. I dumped two stream from a dvd:
> mplayer dvd://1 -aid 129 -dumpaudio -dumpfile audio_1.ac3
> mplayer dvd://1 -aid 131 -dumpaudio -dumpfile audio_2.ac3
> 
> And what next? (mencoder dvd://1 -ovc lavc -lavcopts \
> vcodec=mpeg4:vbitrate=<etc.> -o dvd.avi ... ???)
> 
> 2nd question: is the two-pass encoding always risky concerning the A/V
> desynchronization when not using the simple "-oac copy" option and one
> should always check the obtained video, or is there a "foolsafe" way if
> one wants to (re)encode the audio stream (e.g. with mp3lame)?
> 
> What does it mean: "As long as MEncoder _sees_ the audio.."
> (in the paragraph starting with "You need to have Mencoder..." in
> http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-dvd-mpeg4.html#menc-feat-dvd-mpeg4-audio)
> 
> 
> TIA,
> sZs
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