ref: 21a0dade42c4eef9398c6312c14d60f3cbf14431
parent: 940db8fc4e3c9cca983acf2d7c920e8dbc34b267
author: Marco <marpan@google.com>
date: Thu Aug 14 05:18:38 EDT 2014
vp8: Modify to use closest reference in zero_mv bias. Modify zero_mv bias condition to include check that "closest" reference is last_frame. This is needed for temporal layers, where the last_frame is not always the closest reference. Also, constain zeromv_count to be for last_frame reference. Change-Id: I7af54a809ebf01ef43b9933c9d4095b6cb189390