tree a89c7bf6783bebca165e4817c5430d2b0dac44ff
parent a560322898ce8b7c70c54e7c099ce94b8d6a1e02
author Hui Su <huisu@google.com> 1554746180 -0700
committer Hui Su <huisu@google.com> 1555433836 +0000

Speed feature: skip part search after trying split

Add a ML based speed feature to terminate partition RD search after
trying PARTITION_SPLIT. The features for the model are based on QP,
previous partition RDO results and the variance from simple motion
search.

This feature is currently enabled for low and mid resolution, speed 1
and 2.

Coding loss(%):
         speed 1    speed 2
lowres    0.05       0.05
midres    0.04       0.02

Speed gains(%):
         speed 1    speed 2
lowres     4.7       3.7
midres     5.4       5.3

STATS_CHANGED

Change-Id: I6c32707e52da5c3ff84e784a4b4fe43ebb19cb97