tree a28284c668fbeca5663d25ecd357c7d373879002
parent 161e5c45696e45cab8f437eb9d8c6d7a0c1bb997
author Frank Barchard <fbarchard@google.com> 1472082444 -0700
committer Frank Barchard <fbarchard@google.com> 1472082444 -0700

Add SplitUVPlanes and MergeUVPlanes

Add public methods SplitUVPlanes and MergeUVPlanes based on the
optimized assembly functions that already exists. Also, de-duplicate the
CPU dispatching code for these functions by moving them to helper
functions.

BUG=libyuv:629
R=braveyao@chromium.org

Review URL: https://codereview.chromium.org/2277603004 .