ref: 0998a146d4f63c1758d1d1b941e7a33a1515695d
parent: 0acc2708303ca906a23d27087fa6ed6aebcf4096
author: Jerome Jiang <jianj@google.com>
date: Wed Feb 22 09:24:02 EST 2017
Make vp9_scale_and_extend_frame_ssse3 work for hbd when bitdepth = 8. Only works for bitdepth = 8 when compiled with high bitdepth flag. 4x speed ups for handling 1:2 down/upsampling. Validated manually for: 1) Dynamic resize for a single layer encoding 2) SVC encoding with 3 spatial layers Results are bitexact with the patch and the speed gain (~4x) in the scaling was verified. BUG=webm:1371 Change-Id: I1bdb5f4d4bd0df67763fc271b6aa355e60f34712