This code serves no purpose in the re-factored sub 8x8 code.

Change-Id: I5364986224d1a28b71bcb046ec8557a3d14aaa47

Allow selective masking of individual split modes rather than
just a single on / off flag.

For speed 2 recovers the large speed loss seen for some derf
clips  in change Ie6bdfa0a370148dd60bd800961077f7e97e67dd4
and a small quality gain.

For speed 1 10 % speed increase observed locally on some derf clips
for minimal quality change.

Change-Id: If86191087b93cbc05351c26c60c7933e2149e485

In relation to change:
Refactor inter mode rate-distortion search
 Ie6bdfa0a370148dd60bd800961077f7e97e67dd4

sf->thresh_mult_sub8x8[THR_INTRA] = INT_MAX missing;

Change-Id: Ia86b68a5073368a3e2ca124a27b632243b525c8b

Change-Id: I2cc3684f416a63dc99b9303109f9850f34a470d5

This patch reverts old commit 398ddafb
"New way of updating last frame segmentation map.".

Change-Id: Iba730f433c30ed7f5e5449d6768049cbf9a2b2c5

This commit removes the redundant second reference frame check in
the rate-distortion optimization loop for sub8x8 blocks.

Change-Id: I13a57a6f624c4a9bcef02ff2a867fa30d8b44a93

Change-Id: Ic23a705e48cadaa7151f2bd8536d56636cb973e3

This commit defines b_mode_info as a struct type. This will allow
us to further remove the use of PARTITION_INFO in the encoding process.

Change-Id: I975b0f7d557b5e0f66545a61b472def76b671cce

Remove redundant variable definition/use in rate-distortion search
loop for regular and sub8x8 blocks, respectively.

Change-Id: Ic0eb3660bb6851ba2eb8d702ba9fd11595000d01

This commit separates the rate-distortion optimization loop of
superblocks from that of sub8x8 blocks. This allows better design
rate-distortion optimization search loop for each setting. It also
removes the use of SPLITMV and I4X4_PRED therein.

No performance change in speed 0 settings. For bus@CIF at 2000kbps,
the speed 1 runtime goes from 48009ms to 43894ms (about 10% faster).
The overall compression performance on derf changed by -0.021%.

Speed 2 runtime goes from 27114ms to 28700ms (6% slower), while the
overall coding efficiency goes up by 1.629% for derf, 1.236% for yt.

Change-Id: Ie6bdfa0a370148dd60bd800961077f7e97e67dd4

Change-Id: I9a0d0e9c3459954aa7b9c68f92cc5d56385ebd18

Change-Id: I5ae659c1bfb132428a7272d094b5287d144ec7c8

In subpixel filters, prefetched source data, unrolled loops,
and interleaved instructions.

In HORIZx4, integrated the idea in Scott's CL (commit:
d22a504d), which was suggested by
Erik/Tamar from Intel. Further tweaking was done to combine row 0,
2, and row 1, 3 in registers to do more 2-row-in-1 operations until
the last add.

Test showed a ~2% decoder speedup.

Change-Id: Ib53d04ede8166c38c3dc744da8c6f737ce26a0e3

Substantial reworking of the speed vs quality trade offs for
speed 1 and 2.

In this patch I am attempting to freeze the "quality" meaning of
speeds 1 and 2 relative to speed 0 so that in future we can
better evaluate progress.

I am targeting :
Speed 1 quality ~-5% vs speed 0.
Speed 2 quality ~-10% vs speed 0

It is inevitable that quality will still fluctuate a little as we adjust
settings and add new features, but we will attempt to keep as
close as possible to these values. Above speed 2 things will remain
a bit more fluid for now.

In this patch speed 1 is approximately 4-5x as fast as speed 0. This
is similar to before but the quality hit is a lot less. Likewise speed 2
is approximately 2x as fast as speed 1 but is similar in quality to the
previous speed 1 configuration.

Also slight change to behavior of FLAG_EARLY_TERMINATE to insure
all reference frames get at least one rd test. Important for very low
variance regions.

WIP :- Added a new speed level with old speed 4 becoming speed 5.
Speed 3 and 4 tradeoffs still WIP

Change-Id: Ic7a38dd7b5b63ab1501f9352411972f480ac6264

This commit causes use last partition to consider whether a 64x64 has
motion that might make a new partitioning worth while.

Change-Id: I3a57bedef4f3cd961fadbfa96651c206fa36da4a

Adding appropriate test vector vp90-2-06-bilinear.webm.

Change-Id: Ia3bbf57318e0cc61a1b724fe751e3f9c7e11b337

Change-Id: I401536778e3c68ba2b3ae3955c689d005e1f1d59

Making appropriate memset inside decode_block now.

Change-Id: I8e944194668c830de08271c8fb6e413251c201d8

Remove mode_check_freq and mode_test_hit_counts from VP9_COMP.

Change-Id: Iabfd9f841444cd9bf19ac761a9795f140082ce0b

The codec should effectively run with motion vector of range (-2048, 2047)
in full pixels, for sequences of 1080p and below. Add assertions to clarify
this behavior.

Change-Id: Ia0cac28249f587d8f8882205228fa480263ab313