tree f628fc23de0423e23a82f2ca458341ce55b66e4d
parent 81ad3333fbf60a9339d947cb2c1f7ff9a2cc0880
author Yunqing Wang <yunqingwang@google.com> 1597775666 -0700
committer Yunqing Wang <yunqingwang@google.com> 1597859770 +0000

Increase TPL stats block size for res < 720p

Increased TPL stats block size to 16x16 for resolution < 720p to reduce
memory usage without affecting encoding speed and quality.

Borg test results:
        avg_psnr:  ovr_psnr:  ssim:
speed0:
midres:  0.037     0.044     -0.008
lowres: -0.006     0.003     -0.035

speed 1:
midres: -0.003    -0.008     -0.013
lowres: -0.009    -0.026     -0.018

Memory reduction:
midres(480p): 17.2%
lowres(cif):  13.8%

No impact on encoding speed.

STATS_CHANGED

Change-Id: I272d1d26b60b7231d8955c21d8e23279624816f2