ref: 7450275755642d89cb5b83df811e98a0a7f7eb8f
parent: 63fb34c9bc6114c6ab8b4250177ff6197edacf25
author: Dmitry Kovalev <dkovalev@google.com>
date: Thu Jan 23 07:14:57 EST 2014
Setup pre[0] buffer before calls to {first_pass, zz}_motion_search.
Change-Id: I9b94e741201eacb1982014724a532bdaae31f130