[MEncoder-users] low quality decrypt

[Martin Collins]

On Tue, 20 Sep 2005 22:26:54 +0200
miguel gmail <miguel.listas at gmail.com> wrote:

>   mencoder dvd://1 -o whatevermovie.avi -oac copy -ovc lavc -vf
>   scale 1024:800 -lavcopts vcodec=mpeg4  (all one line)
> 
> However, the output movie doesnt have a very high quality. It seems
> to be very ´pixelized´

The default bitrate is 800 which is pretty low, only really suitable
for half size video. Set a higher one.
Scaling up before encoding is pointless and wasteful. You should
encode at the original size or less. If the pixels are not square set
the aspect so they get displayed correctly.
Crop off any black borders though make sure the dimensions you encode
are divisble by 16.
Those are the most important things, the rest is just option
twiddling for diminishing returns.

Martin