[x264-devel] Varying Co-effecients

kumar gokhare kumar.gokhare at gmail.com
Fri May 14 18:49:31 CEST 2010


Ok .. is this an added optimization in x264 codec or part of standard ? Can
this be in any way avoided ?

thanks..

On Fri, May 14, 2010 at 12:45 PM, Jason Garrett-Glaser <
darkshikari at gmail.com> wrote:

> On Fri, May 14, 2010 at 9:05 AM, kumar gokhare <kumar.gokhare at gmail.com>
> wrote:
> > Hello,
> > I have a small doubt regarding co-efficients which are fed to the CAVLC
> > encoder. If I change the codewords of "level_token" table to encode these
> > co-efficients, they seem to change, ie; I get a different set of
> > co-efficients that are fed to CAVLC encoder for different CAVLC "level"
> > tables. Is this expected ?
>
> Yes, because different codewords change bit costs, which changes the
> modes that RD decides on, which changes the coefficients used.
>
> Dark Shikari
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> x264-devel at videolan.org
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