[XviD-devel] Adaptive quantization help--variance masking

[Dark Sylinc]

Hi again!

I'm looking at the code & that function doesn't have a
SIMD counterpart. Although, the user has to
explicitely request lumimasking.
How did you know that there is no difference between
the results of both XviD versions? Did you do a binary
comparision of the output?
Again, doesn't hurt using breakpoints to see if your
code is actually being used.
If you're using xvid_encraw sample, don't forget the
"-lumimasking" option.

Hope this helps
Dark Sylinc

--- Dark Sylinc <dark_sylinc at yahoo.com.ar> escribió:

> Are you absolutely sure that the code is being used?
> I didn't bother looking if it has assembler
> counterpart, so make sure no MMX/SSE/3DNow! function
> is used instead of the C one.
> To quickly be sure, compile it in debug mode and
> place
> a breakpoint inside the function. If the debugger
> stops there, then you're using it and something is
> wrong with the code.
> If the debugger never breaks, the code is simple not
> being used.
> You're sure that no "duplicate library" is used,
> however XviD has "duplicate functions" optimized for
> different system hardware.
> 
> Hope this helps
> Dark Sylinc
> 
> --- Jason Garrett-Glaser <darkshikari at gmail.com>
> escribió:
> 
> > I got bored and decided I would port x264's new
> VAQ
> > to Xvid.
> > 
> > After 15 minutes, I got this patch:
> > http://pastebin.com/f609010fc .  It just
> > overwrites the lumimasking code.
> > 
> > However, all my attempts to compile Xvid result in
> a
> > library that just does
> > ordinary lumimasking, even though I've overwritten
> > the code.  This isn't a
> > "duplicate library" issue; I have confirmed that
> it
> > is indeed my compiled
> > version of Xvid that is being used.
> > 
> > What could the problem be--and could any other
> > developer try throwing in
> > this patch and seeing if it works?
> > 
> > Note the "strength" parameter can be varied
> > arbitrarily.  It does what you
> > think it does.
> > 
> > Dark Shikari, x264 developer
> > _______________________________________________
> > XviD-devel mailing list
> > XviD-devel at xvid.org
> > http://list.xvid.org/mailman/listinfo/xvid-devel
> > 
> 
> 
> 
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