ref: 3af3593c8ecb2a724c3c9f63e2186366550854fa
parent: 431dac08d10b28803a0b5754337099bc79a79fb5
author: Paul Wilkins <paulwilkins@google.com>
date: Fri Jan 7 11:33:59 EST 2011
Limit Q variability in two pass. In two pass encoding each frame is given an active Q range to work with. This change limits how much this Q range can be altered over time from the initial estimate made for the clip as a whole. There is some danger this could lead to overshoot or undershoot in some corner cases but it helps considerably in regard to clips where either there is a glut or famine of bits in some sections, particularly near the end of a clip. Change-Id: I34fcd1af31d2ee3d5444f93e334645254043026e