tree c59d2f8c6b14a23af98740dd2c975b58d0401799
parent b0f0fb12dd363ff4a3a2509d640e39c8213295de
author Marco Paniconi <marpan@google.com> 1604954473 -0800
committer Marco Paniconi <marpan@google.com> 1605138298 +0000

rtc: Enable noise estimation for high resols

Enable noise estimation for resoln about VGA.

Adjust the threshold increase logic for var_based_partition
based on noise estimation, and remove some split logic
based on noise level. Also remove the duplicate
avg_frame_low_motion computation, and modify the content
state to include low_sumdiff flag, used to increase the
partition thresholds at superblock level.

The increased partition threshold applies only to noisy
content and is targeted to avoid superblocks with motion.
This helps visually to improve background stability for
high noise clips.

bdrate only affects a few of the noisy 720p clip in rtc_set,
and change is neutral, except for dark720 clip which has
bdrate gain ~4% at speed 8.

Change-Id: I42b2e3f71aca5f008034656af6a2fb1d64fd06c6