tree 55c7e7b9a6472bd7abd499eb717ff29bbb6d056f
parent 1b365a3efb2f93f6ac114eca1cad33ce06702b1e
author Paul Wilkins <paulwilkins@google.com> 1618324467 +0100
committer Paul Wilkins <paulwilkins@google.com> 1621439867 +0000

Changes to the RD and Rate control code

These changes are based on experiments in VP9.

The changes give solid metrics gains for SSIM but are mixed
for average and overall psnr (down a little for lower resolutions
but better for HD).

Figures are % BDRATE changes for average psnr,
overall psnr and SSIM with -ve being better.

lowres2  -0.069   0.051  -0.568
ugc360p  0.068   0.248  -0.187
midres2 -0.038   0.037  -0.581
hdres     -0.550  -0.483  -1.140
hdres2   -0.220  -0.125  -0.676

STATS_CHANGED

Change-Id: I828ed8a826f9bdc60996350f01fb97e8d3f30834