[MEncoder-users] lavf/mp4 buggy?

[Dominik 'Rathann' Mierzejewski]

On Saturday, 18 August 2007 at 23:15, Fredrik Eriksson wrote:
> vdmsss wrote:
> > Hello,
> >
> > 	I have been trying to use the new lavf format=mp4, with B-frames  
> > support, and it looks as though the muxer does something wrong with  
> > the audio track. Let's use the command below for reference (entire  
> > output at the bottom of this message -- the key is clearly a warning  
> > about MS style audio tag, but I don't know what it means).
> >
> >   
> >> mencoder -of lavf -lavfopts format=mp4 -ovc lavc -oac lavc - 
> >> lavcopts vcodec=mpeg4:acodec=vorbis -o test.mp4 test.avi -frames 1000
> >>     
> >
> > (1) Firstly, the resulting file has no audio when played with  
> > mplayer. It complains about missing the audio codec (entire output at  
> > the bottom of the message)
> >
> >   
> Correct me if I'm wrong but... the mp4 format doesn't support vorbis 
> audio, right?

I don't know what the spec says, but I've seen lots of mp4 files with
vorbis audio in the wild.

Regards,
R.

-- 
MPlayer developer and RPMs maintainer: http://mplayerhq.hu http://rpm.livna.org
There should be a science of discontent. People need hard times and
oppression to develop psychic muscles.
	-- from "Collected Sayings of Muad'Dib" by the Princess Irulan