[MPlayer-users] Support of ogmtools inside mencoder?[was: Ther is a way to encode directly in ogm format]

[Michael Waters]

On Tue, May 06, 2003 at 16:36 -0400, D Richard Felker III wrote:
> > > shed more light on this?  Anyways, I'd miss the frameno pass if it
> > > were removed; I like using lame vbr instead of abr or cbr and it's
> > 
> > I second that. You also get a speed benefit from doing it in 3 passes, 
> > not having to do audio on the last 2.
> 
> You don't have to do audio on the last 2. Just use -oac pcm on the
> first video pass, since you'll be throwing it away anyway. If you're
> low on disk space and don't want to use -o /dev/null, you can use
> -srate 8000 -channels 1 to make the pcm audio super small (and
> horrible sounding). And, if you're going to ogmmerge it with vorbis
> audio later anyway, you can do -oac pcm on BOTH video passes.
> 
> BTW, about the "improved" a/v sync with 3pass. I'm assuming when you
> tried 2pass encoding to prepare for ogmmerge, you used -nosound. Never
> use -nosound, as it will break a/v sync. With -oac pcm, a/v sync
> should be as good as or better than with 3pass mode.

hmmm... about the -nosound... it was last year when I tried so I can't
remember for sure, but as I had just started encoding stuff then, I'd
have to guess you're right.  :)

Michael