ref: 6bff6cb5a9efe88c2cbe2c5f967560f68ee3ce29
parent: f22b828d685adee4c7a561990302e2d21b5e0047
author: Marco <marpan@google.com>
date: Wed Apr 12 13:06:03 EDT 2017
vp9: 1 pass VBR: Fix to rate control at low min-q. Fix to avoid getting stuck at very low Q even though content is changing, which can happen for --min-q=0. Fix is to more aggressively increase active_worst_quality when detecting significant rate_deviation at very low Q. Change will only affect 1 pass VBR for --min-q < 4, so no change in ytlive metrics for --min-q >= 4. Change-Id: I4dd77dd7c08a30a4390da0ff2c8bda6fccfa76d7