[x265] question about interp

[dave]

ok, thanks Min


On 06/18/2015 03:28 PM, chen wrote:
> it is magic number, just algorithm trick.
> When you analyze H265 interp Dynamic Range.
> You will found it is not balance, it means the middle point is not 
> 0x8000 (unsigned) or 0 (signed)
> The offset magic to avoid overflow.
> Thanks,
> Min
> At 2015-06-19 06:21:02,dave <dtyx265 at gmail.com> wrote:
> >For the interpolation primitives there are multiple versions, pp, ps,
> >sp, and ss.  Each one adding an offset before a shift.  Yet as I review
> >the interpolation section 8.5.3.3.3 of the h265 spec, I don't see where
> >an offset is added.  Am I missing something?  Or perhaps the offset
> >helps decision making?
> >
> >thanks,
> >Dave
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> >x265-devel at videolan.org
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>
>
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