ref: 4b9a848bb3d0f08ab423aca795132af9f2aea7bf
parent: 666e394d41c68e9a57866fc3bd70e54b36d43ab4
author: Johann <johannkoenig@google.com>
date: Fri Jul 14 07:29:32 EDT 2017
variance: call C comp_avg_pred Keep optimized code out of the reference implementation. This matches the style of the other sub calls. Change-Id: I3da6acd4f2c647b029c420e22ac9410a18259689