tree 8079203a37630cbec2a1baab00fffdbf8aa745e5
parent 5dc7620e19b2e8b524027d292d5fab59f5b4f239
author Debargha Mukherjee <debargha@google.com> 1539392096 -0700
committer Debargha Mukherjee <debargha@google.com> 1539667265 +0000

Adjust altref filter strength based on noise level

Uses a simple noise estimator for altref filtering to
modulate the filtering strength.

lowres 30 frames, q mode: -0.05%, not much change in speed

Experiments to be continued with boosts and other parameters.

STATS_CHANGED

Change-Id: Iad5ab781470149ef429dde20e38f46327e934000