tree c83df1f853a03b81c199b987a3a03177aa8fa4eb
parent 8c7bc8035aaaaf5c28bff20be6ab92d888822b1b
author Yunqing Wang <yunqingwang@google.com> 1611119579 -0800
committer Yunqing Wang <yunqingwang@google.com> 1611689273 +0000

Partition 1:4 search pruning

The speedup was seen mainly on HD res.
Borg results at speed 6:
       avg_psnr:  ovr_psnr:  ssim:  speedup:
hdres2  0.220      0.223     0.248   1.6%
midres2 0.012      0.011     0.019   0.2%

STATS_CHANGED at speed 6

Change-Id: I42cd947616eea996b5b2ae501b271771de7bf839