ref: 00f9eb659034cb5cef0bf063c1b72c72c6333f36
parent: de6dfa6bb0cd680ca446a15b52b2a026859eb1e6
author: Deb Mukherjee <debargha@google.com>
date: Thu Jul 26 09:42:07 EDT 2012
New motion vector entropy coding Adds a new experiment with redesigned/refactored motion vector entropy coding. The patch also takes a first step towards separating the integer and fractional pel components of a MV. However the fractional pel encoding still depends on the integer pel part and so they are not fully independent. Further experiments are in progress to see how much they can be decoupled without affecting performance. All components including entropy coding/decoding, costing for MV search, forward updates and backward updates to probability tables, have been implemented. Results so far: derf: +0.19% std-hd: +0.28% yt: +0.80% hd: +1.15% Patch: Simplifies the fractional pel models: derf: +0.284% std-hd: +0.289% yt: +0.849% hd: +1.254% Patch: Some changes in the models, rebased. derf: +0.330% std-hd: +0.306% yt: +0.816% hd: +1.225% Change-Id: I646b3c48f3587f4cc909639b78c3798da6402678