[MEncoder-users] Problem converting a mpeg-ps file to avi

[Giacomo Comes]

On Thu, Jul 14, 2005 at 09:58:03AM -0500, Pete Davis wrote:
> > Hey guys,
> > 
> > I want to reencode a mpeg-ps file to a mpeg4 avi file.
> > Unfortunately mplayer say "The selected video_out device is incompatible
> > with this codec. VDecoder init failed :("
> > 
> > I startet it with:
> > mencoder Refugio.en.el.paraíso.avi -oac copy -ovc lavc -
> > lavcopts vcodec=mpeg4 -vf scale=352:576  -o output.avi
> 
> In addition to the comments provided by Giacomo, you should also do 2 pass
> encoding or you're probably not going to be happy with the results.
> 
> This is a common one I use. You may want to adjust the bitrate or other
> options:
> 
> mencoder infile.mpg -o /dev/null -ovc lavc -lavcopts
> vcodec=mpeg4:vbitrate=1100:mbd=2:vpass=1:vqmin=2:vqmax=31 -oac copy
> mencoder infile.mpg -o outfile.avi -ovc lavc -lavcopts
> vcodec=mpeg4:vbitrate=1100:mbd=2:vpass=2:vqmin=2:vqmax=31 -oac copy

vqmin=2:vqmax=31 aren't necessary because these values are the default ones.

Giacomo