tree fa14ba46300864f3133268b9ef76673a74df9fb4
parent 29147cfe56c41a91b4e1eb636edc0e9c1bf84f98
author Yunqing Wang <yunqingwang@google.com> 1539385407 -0700
committer Yunqing Wang <yunqingwang@google.com> 1539799601 +0000

Use sharp interpolation filter in temporal filtering

Used sharp interpolation filter at temporal filtering motion compensation
stage as done in VP9. This gave 0.3759% PSNR gain and 0.4604% SSIM gain.

AWCY result(speed 1):
   PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
-0.3759 | -0.3107 | -0.5555 |   0.2210 | -0.4604 | -0.0932 |    -0.3368

STATS_CHANGED

Change-Id: I54ffdeae113d28acb08ab428859b4f9b997b05db