[XviD-devel] Status of GMC

[peter ross]

hi,

gruel,syskin: excellent work on gmc.

cleaning up the borders (e.g. forcing constant luma/chrom) imho
isn't a video-codec feature. it can be done at the pre-filter stage.
avisynth provides AddBorders. transcode/mencoder should have something
simular.

>From: Christoph Lampert <chl@math.uni-bonn.de>
>Anyway, the problem is simply how to keep GMC efficient (once it is at
>all), if parts of the picture are static (e.g. pure black) and one
>previously knows about this.

to improve motion estimation for letterboxed material, why not support
a range of interest. the user specifies the area where compression is
most important. for the remainding area a quick inter/inter4v decision
is performed, local gmc, and maybe even higher quants.

-- pete

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