ref: f30b323180c3c358b646414f79f33da5664eeccb
parent: 9602ed8808498c0bdc176ec4ffc60654860f12ec
author: Paul Wilkins <paulwilkins@google.com>
date: Mon Feb 3 07:47:01 EST 2014
Modified Aq1 and Aq2 Aq 1 only updates segment map on kf and arf and only uses 3 segments. With these settings AQ1 is + for most clips in SSIM but negative in psnr. However, the penalty in PSNR is much less than previously. Old version aq1 average results for std hd -20.899% psnr, -5.809% SSIM New version aq1 for std hd -3.57% psnr, +1.23% SSIM Aq2 Now uses only 2 segments and rd. This mode is still slightly negative for most clips on psnr and SSIM but seems to have a much bigger visual impact on several problem clips than aq mode 1. Old results for std hd: -2.578% psnr, -1.151% SSIM New results for std hd: -1.561% psnr, -0.85% SSIM Change-Id: I94f57f8a73121629ce598fb921aad761c1450e1c