commit 370f203a402070734182faec090085d13e8a3dc5
author Yue Chen <yuec@google.com> Fri Apr 22 15:09:12 2016 -0700
committer Yue Chen <yuec@google.com> Tue May 10 18:27:45 2016 -0700
tree 912b407c98f65489fd97acf42ccc24312e2d8741
parent 1d2d1e752eac60eae0390c07962ee9b91b8af85d

Add single motion search for OBMC predictor

Weighted single motion search is implemented for obmc predictor.
When NEWMV mode is used, to determine the MV for the current block,
we run weighted motion search to compare the weighted prediction
with (source - weighted prediction using neighbors' MVs), in which
the distortion is the actual prediction error of obmc prediction.

Coding gain: 0.404/0.425/0.366 for lowres/midres/hdres
Speed impact: +14% encoding time
              (obmc w/o mv search 13%-> obmc w/ mv search 27%)

Change-Id: Id7ad3fc6ba295b23d9c53c8a16a4ac1677ad835c