tree 00b6631d8ed0bff368171c3c04aad3e7ae9a234e
parent 86a7c27273db0bf2e8dd09d4f3874c6fc1089604
author Jingning Han <jingning@google.com> 1564809190 -0700
committer Jingning Han <jingning@google.com> 1565196150 +0000

Distortion propagation model

Account the quantization effect for estimating the distortion
propagation model. This together with its parent CL improves the
compression efficiency. For example in speed 1 vbr mode, the
coding gains are:

        avg PSNR    overall PSNR     SSIM
lowres  -0.24%        -0.18%        -0.92%
ugc     -0.30%        -0.27%        -0.72%
midres  -0.13%        -0.08%        -0.86%
hdres   -0.25%        -0.28%        -0.85%

STATS_CHANGED

Change-Id: I0b6827d0e1f8a9df00ca27472cc9df5e71a6862c