tree ccb748fec5c5a27b7e773edd7506c283b6a74a36
parent 7adfa9f4cb7341f1bdddad23946d216c107a0751
author Yaowu Xu <yaowu@google.com> 1390431423 -0800
committer Yaowu Xu <yaowu@google.com> 1390610436 -0800

Added a speed feature

That force the stop of subpel search possibly at full/half/quater pel
stages

Change-Id: Ie50c500417bd78e1a53e6620bd4c2b85f63d9c67