Merge changes I17fff122,Ic149e3cb
authorLinfeng Zhang <linfengz@google.com>
Tue, 17 Oct 2017 16:03:29 +0000 (16:03 +0000)
committerGerrit Code Review <noreply-gerritcodereview@google.com>
Tue, 17 Oct 2017 16:03:29 +0000 (16:03 +0000)
* changes:
  Add 4 to 3 scaling SSSE3 optimization
  Test extreme inputs in frame scale functions


Trivial merge