[FFmpeg-devel] [PATCH] Apple RPZA encoder

Michael Niedermayer michaelni
Mon Mar 30 12:43:27 CEST 2009


On Mon, Mar 30, 2009 at 10:17:43AM +0530, Jai Menon wrote:
> On 3/25/09, Michael Niedermayer <michaelni at gmx.at> wrote:
> > On Tue, Mar 24, 2009 at 03:39:11PM +0530, Jai Menon wrote:
> >  > On 3/24/09, Jai Menon <jmenon86 at gmail.com> wrote:
[...]
> >  > +/* tuning parameters */
> >  > +#define SIXTEEN_COLOR_THRESH        24
> >  > +#define SKIP_FRAME_THRESH           13
> >  > +#define START_ONE_COLOR_THRESH      8
> >  > +#define CONTINUE_ONE_COLOR_THRESH   0
> >
> >  Encoders, especially such simple ones should be build to be RD optimal
> >  in as many aspects as possible
> 
> The "parameters" so to say, give a good tradeoff between final output
> size and quality. But I don't think I understand correctly. If we were
> to use 16 colors everywhere, the output size will be absurdly large.

please read doc/rate-distortion.txt
and if you dont understand it please try to explain what you dont understand
so i can improve it

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The bravest are surely those who have the clearest vision
of what is before them, glory and danger alike, and yet
notwithstanding go out to meet it. -- Thucydides
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