[XviD-devel] Cartoon mode

[Christoph Lampert]

Guys, I thought I told not NOT to try to download, didn't I?
I meant it! And, yes, I do have a logfile... 

gruel


On Fri, 18 Apr 2003, Christoph Lampert wrote:
 
> Ooops, this was meant for Micahel... please ignore
> and don't you all try to download!!! ;-)
> 
> gruel
> 
> On Fri, 18 Apr 2003, Christoph Lampert wrote:
> > On Thu, 17 Apr 2003, Michael Militzer wrote:
> > 
> > > Hi,
> > > 
> > > Quoting Christoph Lampert <chl at math.uni-bonn.de>:
> > > 
> > > > 
> > > > Hi,
> > > > 
> > > > with all the new and upcoming option, we should maybe bundle
> > > > our knowledge into some "Presets" for the GUI. Instead of 
> > > > suggestions like "quarterpel might help, but not always, depends on the
> > > > input material" (which is absolutely right), we might come up with 
> > > > good presets for the most frequently encoded material. 
> > > > They don't have to be perfect. Just good.
> > > 
> > > yes, it would be really great to have default settings (or automatic mode or 
> > > whatever), that would give good results for all kinds of input material. I'm 
> > > still wondering why Qpel is sometimes worse and often better than halfpel. I 
> > > have an idea and I'm currently investigating this.
> > > 
> > > BTW: Could someone provide a clip where qpel performs really bad? At best a 
> > > clip where for a fixed quant encoding qpel produces bigger sizes and lower 
> > > PSNR. This would be helpful since most of my clips seem to be qpel friendly ;-)
> > 
> > Ich habe einen kurzen CLip (aus Dumbo von Disney) unter 
> > 
> > http://lieb.math.uni-bonn.de:8080/data/dumbo.mpg
> > http://lieb.math.uni-bonn.de:8080/data/dumbo.vob
> > http://lieb.math.uni-bonn.de:8080/data/dumbo.pgm.bz2
> > 
> > user/pass jeweils xvid
> > 
> > Ein typischer Cartoon mit 25fps statt 15 oder so, d.h. viele
> > "doppelte" Frames, wo nur das Rauschen neu ist. Und das nicht zu knapp.  
> > Auf die doppelten kommt es aber gar nicht an, im PGM-stream sind die
> > doppelten entfernt, machts nicht besser.
> > 
> > Meine Logs (vom PGM) sind attached, dumbo1 ohne QPel, dumbo4 mit Qpel.
> > PSNR ist echt auffaellig. 
> > 
> > Gruss,
> > Christoph 
> > 
> 
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