Re: [MPlayer-users] mencoder with Xvid not very fast

[D Richard Felker III <dalias@xxxxxxxxxx>]

On Tue, Nov 19, 2002 at 04:45:23PM +0100, Moritz Bunkus wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Hi.
> 
> > However, if you
> > want to use deblocking, it's very important that macroblocks stay
> > lined up the same way they were decoded, and that the exported
> > quantizer table make it to the pp filter for the deblocker to use.
> > Normally this info will be lost if there are intermediate filters in
> > the way.
> 
> Ah thanks for that example. So basically most of the filters (those
> which do not depend on the original block structure) should be ok to
> apply after the cropping on order to gain speed?

Probably, but I'm not an expert on the matter. However, dering may
also depend on the quantizer table; I'm not sure how it works. You
should probably do a little research if you want to make sure you get
max quality when transcoding with the pp filter.

Rich