[MPlayer-DOCS] [PATCH] XviD documentation reaching almost completeness

Guillaume POIRIER guillaume.poirier at ifsic.univ-rennes1.fr
Tue Sep 7 11:38:56 CEST 2004


Le mar 07/09/2004 à 02:20, Diego Biurrun a écrit :
> Guillaume POIRIER writes:
> > > > +.B quant_type=<h263|mpeg>
> > > > +Sets the type of quantizer to use.
> > > > +For high bitrates, you will find that MPEG quantization preserves >
> > > more detail.
> > > > +For low bitrates, the smoothing of H.263 will give you less block >
> > > noise.
> > > > +When using custom matrices, MPEG must be used.
> > > 
> > > I'm not sure if we shouldn't write mpeg and h263 here since the text
> > > refers to the parameters passed to XviD.  It's not completely clear
> > > in which way it is meant to be understood, though.
> > 
> > What I'm trying to say here is that the only current parameters allowed
> > here are: h263 or mpeg. For the rest, I guess it's just a matter of
> > taste.
> 
> Yes.  And if you are talking about the quant_type parameters they
> should be written lowercase to avoid confusion.  IOW mpeg is the
> parameter that turns on MPEG quantization.  Does this make things more
> clear?

So even clearer description could be:

+.B quant_type=<h263|mpeg>
+Sets the type of quantizer to use.
+For high bitrates, you will find that MPEG quantization preserves
+more detail.
+For low bitrates, the smoothing of H.263 will give you less block
+noise.
+When using custom matrices, MPEG quantization must be used.

Do we agree that <h263|mpeg> sums up what are the parameters available?

> P.S.: Guillaume, it would help the readability of your mails if you
> could leave a blank line between a quote and your answer.  Thanks.

Ok, I'll try to do my best. 

Regards,
Guillaume




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