tree f50daa8496a88951e91151662b4c0fc92444469d
parent f8daa92da050a8d9edb1e6551e63816be1e05f3d
author Debargha Mukherjee <debargha@google.com> 1516320588 -0800
committer Debargha Mukherjee <debargha@google.com> 1517564240 +0000

Port first pass stats handling from Vp9 into Av1

Some parameter tuning included.

lowres (q, 30 frames, speed 1):
-1.243% av PSNR, -2.337% ov PSNR, +0.577% SSIM

lowres (vbr, 30 frames, speed 1):
-0.327% av PSNR, -1.007% ov PSNR, +0.182% SSIM

A few videos become a lot worse in SSIM, which needs to be
investigated. But PSNR-wise the patch seems pretty good.

Change-Id: I17c8d812c96ee49ddae7d3959a459aa3ffcea208