[XviD-devel] mpeg_quant
pete
pross at xvid.org
Tue Nov 29 09:08:15 CET 2005
hi,
[cleaning out my draft mbox...]
On Sun, 2 Jan 2005 16:03:00 +0100 Christoph Nägeli <chn at kbw.ch> wrote:
> I want to create some altivec routines for mpeg quantization.
great.
> Can anyone tell me how many bits I need to process mpeg quantization?
> Is 16-Bit Arithmetic enough or do I need 32-Bit?
16-bits is insufficient for mpeg quantization when using large
quantizers. i can't recall exactly what constitues large, but it
is alteast q=10.
cheers,
-- pete
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