tree 6a2dc376ae1e28ed96e0bd3d1ad0f57953f87028
parent 0a0177eac6b67e84c26c424ac11eb1f3e061f64f
author Jingning Han <jingning@google.com> 1604999119 -0800
committer Jingning Han <jingning@google.com> 1605038989 -0800

Bypass multiple motion search runs on diff wtd compound mode

Allow the encoder to re-use the diff wtd index estimated based on
the first reference motion vector for the later ones. Skip repeated
motion estimation runs related to the weighting index search.
Local test shows minor speed up. The overall coding performance
change is minor too.

STATS_CHANGED

Change-Id: I9c3d35081c7c0f4c173e1f27f5c4fc45266f2551