shithub: libvpx

Download patch

ref: b4ad9b5d5052b54d74c98c2ee71d5236c39a1537
parent: 82d99257f2f2a009bd3f9cde4375e141fbf85827
author: Paul Wilkins <paulwilkins@google.com>
date: Tue Dec 6 09:48:52 EST 2011

Some further QIndex issues with extended Q

Resolved or factored out some further issues with Q index.
Put in a 3rd order polynomial instead of less accurate power function
as the best fit on gf and kf boost adjustment.
Added avg_q value to use instead of ni_av_qi.
Compute segment delta Q values based on avg_q.
Fixed bug in adjust_maxq_qrange().

The extended range Q on the derf set, using standard data rates
(which do not extend high enough to get big benefits) still show
a shortfall of between 0.5 and 1% though so there would appear to
be further issues that need to be tracked down.

Change-Id: Icfd49b9f401906ba487ef1bef7d397048295d959