tree 7f2d9c89503a503d14a772a684901a82291292c8
parent 761f90f0cd61b93313f2a22a2d2256f10e3b988b
author Yue Chen <yuec@google.com> 1565038051 -0700
committer Yue Chen <yuec@google.com> 1565304127 -0700

Increase tpl stats storage granularity for high resolution

Previously, tpl stats will be stored at 4x4 granularity.
This patch make the granularity adaptive to source resolution.
At >=720p resolution, tpl stats will be stored at 16x16 granularity,
otherwise, stored at 8x8 granularity, controlled by
cpi->tpl_stats_block_mis_log2.
This will reduce memory usage for 4k encoding by 0.9G.

Coding performance change:
lowres: -0.023%
midres: -0.002%
hdres: -0.008%
netflix4k_8bit: -0.001%

BUG=aomedia:2453

STATS_CHANGED

Change-Id: I4dbcd2c3cec4986fae279d5da2cbd5ede9d4c323