[x265] [PATCH 3 of 3] Reduce half HPEL interpolate works by merge nest point

[chen]

My Idea is merge some reduce interpolate, see below two pattern:
 
*  O  *

   *
  O
  *
 
We can merge twice interpolate into one by increment a row or col, since it is HPEL pixel, so the distance between two point is a unit '1'.
 
of course, we may also merge four of interpolate (end of square1[9]) like below, I don't implement it now, but it is easy to do:
 
*  *
 O
*  *
 
 
在 2013-09-24 01:25:24，"Steve Borho" <steve at borho.org> 写道：






On Sun, Sep 22, 2013 at 11:40 PM, Min Chen <chenm003 at 163.com> wrote:
# HG changeset patch
# User Min Chen <chenm003 at 163.com>
# Date 1379911059 -28800
# Node ID b009957b4443ef790936c80f9df538e75d742306
# Parent  cec05efee900c68cb09ddd4135133836bb2e9c3b
Reduce half HPEL interpolate works by merge nest point



This is interesting, but it needs a better commit message, probably some more comments, and definitely a better method name.  I can probably clean this up pretty quickly on my end, just need to discuss a few details with you.
 
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