[XviD-devel] [PATCH] Faster direct/interpolate bvop block
interpolation
skal
skal at planet-d.net
Sat Jul 24 07:34:23 CEST 2004
Ed,
On Sat, 2004-07-24 at 01:02, Edouard Gomez wrote:
> Yep i confirm, skal, your code isn't right.
>
Nope =>
Section 6.3.5, syntax element "vop_rounding_type":
"...When vop_rounding_type is not present in the VOP
header, the value of rounding_control is 0".
and dst = (a+b+ 1-rounding_control)>>1
> xmm code doesn't match the spec, or we're doing wrong in xvid
> since ever. I hope it'syour code that is wrong :-)
Nope. In decoder.c, calls to interpolate8x8_avg2()
should be done with a rounding param 0 (instead of '1',
currently).
bye!
Skal
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