commit fb8ea1736b41ae9067901e7d8ebcfa15bc9b2fa9
author Debargha Mukherjee <debargha@google.com> Tue May 10 09:30:30 2016 -0700
committer Debargha Mukherjee <debargha@google.com> Mon May 16 12:41:47 2016 -0700
tree e4fef39e899291a0a34619b0a0ddf475805ee5aa
parent e7ebe26dd5de7e80df631c63b22ac900ae7758c0

Various wedge enhancements

Increases number of wedges for smaller block and removes
wedge coding mode for blocks larger than 32x32.

Also adds various other enhancements for subsequent experimentation,
including adding provision for multiple smoothing functions
(though one is used currently), adds a speed feature that decides
the sign for interinter wedges using a fast mechanism, and refactors
wedge representations.

lowres: -2.651% BDRATE

Most of the gain is due to increase in codebook size for 8x8 - 16x16.

Change-Id: I50669f558c8d0d45e5a6f70aca4385a185b58b5b