[MPlayer-users] Re: mencoder with lavc, mpeg4, vbitrate=1250 producing 3GB/h files

Rémi Guyomarch rguyom at pobox.com
Sun Aug 11 11:41:02 CEST 2002


On Sun, Aug 11, 2002 at 01:50:55AM -0400, Brian J. Murrell wrote:
...
> Yes, typo.  Was actually vcodec.  I didn't have cut'n'paste.  As for
> the vme, that is just what an example on the list used.  I removed the
> vme option (use default) now.  I have also tried adding vpass=1 (which
> should be default as well) and I am still getting a 2GB/h encoding.

vpass=1 isn't the default, zero is.
vpass=1 means the first pass in a 2-pass session.
vpass=0 means 1-pass mode. This is probably what you want.

[...upgrading to latest libavcodec...]
>  No change.  I
> am still getting a 2GB/h file with the options:
> 
> -ovc lavc -lavcopts vcodec=mpeg4:vpass=1:vbitrate=1250:vhq:vqmin=2:vratetol=40000 -oac copy

Heh! "-oac copy" ??? I bet that's the problem ! You're recording in
PCM or whatever gives you your TV card, but certainly not in mp3 :)

Use "-oac mp3lame -lameopts vbr=3:br=128:aq=0" or something like that.

-- 
Rémi




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