tree 1ab2319f10a926df17fbea982f45989e9b960c9d
parent a6d4786a08bef53ed86d4a92aac98eabf50e6f7a
author Yunqing Wang <yunqingwang@google.com> 1604706975 -0800
committer Yunqing Wang <yunqingwang@google.com> 1604956115 +0000

Tune intra mode pruning feature at speed 2

Sped up the encoder while keeping the pruning threshold less aggressive
for speed 2.

Borg test results at speed 2:
         avg_psnr: ovr_psnr: ssim:  speedup:
lowres2:  0.021     0.028    0.037    2.1
midres2:  0.022     0.007   -0.023    2.4
hdres2:   0.015     0.016    0.044    2.7
This could be further extended to speed 1.

STATS_CHANGED

Change-Id: I77209f812e10ddc62fcd3f3083b9710307545807