ref: e0846c9c8c374a07911ced982ce68949886d0f21
parent: 3af3593c8ecb2a724c3c9f63e2186366550854fa
author: Paul Wilkins <paulwilkins@google.com>
date: Fri Jan 7 13:29:37 EST 2011
CQ Mode The merge includes hooks to for CQ mode and other code changes merged from the test branch. CQ mode attempts to maintain a more stable quantizer within a clip whilst also trying to adhere to a guidline maximum bitrate. The existing target data rate parameter is used to specify the guideline maximum bitrate. A new parameter allows the user to specify a target CQ level. For normal (non kf/gf/arf) frames, the quantizer will not drop BELOW the user specified value (0-63). However, in some cases the encoder may choose to impose a target CQ that is above that specified by the user, if it estimates that consistent use of the target value is not compatible with guideline maximum bitrate. Change-Id: I2221f9eecae8cc3c431d36caf83503941b25e4c1