ref: 11880f6a3d7e8a801a956d79c70421776523f532
parent: 28801f91c4c030da55d483840691582440f8f8f4
author: Hui Su <huisu@google.com>
date: Mon Apr 30 17:11:31 EDT 2018
Don't use transform domain distortion when eob is 0
When eob is 0, pixel domain distortion is more accurate and efficient.
This mainly affects speed >= 2. Speed 0 always use pixel domain
distortion; speed 1 use it most of the time.
Compression impact(negative means gain):
speed 2 speed 3 speed 4
lowres -0.04% -0.06% -0.06%
midres -0.10% -0.10% -0.20%
hdres -0.01% -0.03% -0.06%
Encoding speed is about neutral.
Change-Id: I77b957658deeaad57381fd13afc11bacdec8c08f