This patch reduces the cpu cost of the MV ref
search by only allowing insert for candidates
that would be in the current top 4.

This could alter the outcome and slightly favors
near candidates which are tested first but also
limits the worst case loop count to 4 and means in
many cases it will drop out and not happen.

Change-Id: Idd795a825f9fd681f30f4fcd550c34c38939e113

The commit changed the trellis quantization function optimize_b() to
work for MBs using all transform sizes, and eliminated the function
for MB using 16x16 transform only, optimize_b_16x16.

Change-Id: I3fa650587ab5198ed16315b38754783a72b33ba2

Only declare the functions in vpx_scale RTCD and include the relevant
header.

Remove unused files and functions in vpx_scale to avoid wasting time
renaming. vpx_scale/win32/scaleopt.c contains functions which have not
been called in a long time but are potentially optimized.

The 'vp8' functions have not been renamed yet. That is for after the
cleanup.

Change-Id: I2c325a101d60fa9d27e7dfcd5b52a864b4a1e09c

Change-Id: I9f0ae635fb9a95c4aa1529c177ccb07e2b76970b

Refactor asm_offsets for vpx_scale.

Change-Id: I2db0eeb28c8e757bd033c6614a1e5319a1a204a5

Adds support for compound inter-intra prediction with superblocks.
Also, fixes a bug that disabled intra modes for superblocks.

Change-Id: I4d711317e1bc19df8c2f32dc645429f7fff31036

Change-Id: I4765ca3dab880a3673c15fb56b2d912ec2ea194e

Allows switchbale filters to be used without mismatch when the
superblock experiment is on.

Also removes a spurious clamping code in decodemv.c which causes
rare encode/decode mismatches.

Change-Id: I809d9ee0b2859552b613500b539a615515b863ae

Change-Id: Ib5106d4772450f8026f823dd743f162ab833b1d6

Change-Id: I2c252f3ddcc99e96c1f5d3dab8bcb25a2a3637ea

Refactoring for improved readability - no bitstream or
performance change.

Change-Id: I4488ed4715f8dbe38c66431106478669041b8b33

Change-Id: I32ed051c8b4d3e5afa4e13bb4e3b2ca5e922ff64

Change-Id: I6a224c590b6a2c5b91f9084ffb8083d18223a206

Change-Id: I1f49d96cdb5e342041c9a72ef31df361a1b609eb

Change-Id: I54a122cc8c0b6ed2dbc3c6ecfcd44736cd40b687

Change-Id: I429a97ac57db3de0bf67ce3f3fe0c6b409f77a9e

* changes:
  more warning cleanup
  unused variables & warnings

Previously, the "!=" check is logically incorrect when eob is at 0 and
effective coefficient starting position is 1. This commit should have
no effect on bitstream.

Change-Id: I6ce3a847c7e72bfbe4f7c74f88e3310c6b9b6d30

Change-Id: Iaa67bcf1e866dfe255c4e458d4e51e9c708ffcf4

Change-Id: Ibea3bc80eb26a975faaa60268bbc93237f82bc57

Change-Id: Ibe11e9275949b26a77fa9c8ac2e7c356ae533d5d

Change-Id: I1302a6eaa840d419e8bb9ad0673e42ef139d3fee

Change-Id: I9d0efdff0c79ea4bdd660098106b64776bdd4483

Change-Id: Ie34820c1b6eaba9cf9316415a46f48af79c41646

Change-Id: I914bcc669297d3414261486bf1bfb716c2ecc804

clears up some warnings

Change-Id: I9899637497c6ad7519f098e055ab98580ae6d688

Change-Id: I20c426e91ee49666db42e20eb074095ab6b8ec5d

Change-Id: Ieefd76e164ca4aa87597da0412977614ddfbacb7

This patch allows use of 8x8 and 4x4 ADST correctly for Intra
16x16 modes and Intra 8x8 modes when the block size selected
is smaller than the prediction mode. Also includes some cleanups
and refactoring.

Rebase.

Change-Id: Ie3257bdf07bdb9c6e9476915e3a80183c8fa005a