ref: 8e392959349dc4cb48b3e3f289be8b052ff433e5
parent: e8747866dc1c2eee2c366a34506acbdf87843378
author: Dmitry Kovalev <dkovalev@google.com>
date: Tue May 7 13:18:57 EDT 2013
Using 4-iteration loop for extra_mb_col inside loopfilter function. Change-Id: I3a4f456035628a9397bdc57c19cdb03439ab1ed3