The optimizer did something funny with the code around
line 1412.  Before the call to encode_sb split_dist was
set properly but after it was adjusted and converted to
a negative.

https://code.google.com/p/webm/issues/detail?id=714

Change-Id: I9a7631d5325ade2dc28c1030653a23eecec8721b

This commit enables the use of DC, vertical, and horizontal intra
prediction mode in rtc non-RD mode decision. When the best cost value
of inter modes is above a given threshold, the encoder runs the
above three intra modes and selects the one that has minimum
prediction residual in terms of SAD.

This together with recent changes on non-RD mode decision and coding
control improves compression performance of speed -6 by
derf  91%
yt    61%
hd    46%
stdhd 52%

In terms of encoding speed, it is about 3 times faster than speed -5.

Change-Id: I6b483bfd0307e6482bb22a6676ae4e25a52b1310

When non-RD coding decision is used in rtc mode, the alt reference
is not used for inter frame prediction. This commit disabled alt ref
option whenever speed -6 is used.

Change-Id: I0b33ca03661de1db2d9bef1bcbff848cd4c9396f

Cast result of round() to int.

Change-Id: Ib708fddfadde4c765001ce9723fda113fd0f4bf6

Cast result of round() to int.

Change-Id: I4982886ad4e7657b4c40d21bd850d31690a68c28

Avoid special context setting for alt-ref in svc mode.

Change-Id: I5337d0739abe16aab7854bcaa3c8537191c4b60c

Change-Id: Ia9252ad0caa4d2bda529a3fe93efcb31e7eb2da0

Change-Id: Ia70057e11c9b3d9d4bea6fbdd08839334ed02dce

In the first coding run of a 64x64 block, check the coding mode
for each 8x8 block. Will need a second annealing stage to decide
the partition size to be encoded.

Change-Id: Ida9417805ff3358979b0c0429d4099c023c88866

Change-Id: I389790f1ad0dd40816a7ae1ddad4a5c46278cff3

Removes unnecessary casts and silences warnings.

Change-Id: Ic516a909a2b3748831be6717f02d86ca60190af3

Change-Id: I0f2d5155ec042e9b5cbe9a9d6b186b121ed7737f

+ fix formatting

Change-Id: I7b4ec11b7b46d8926750e0b69f7a606f3ab80895

clamp() wants an int, round returns a double, warning! Too bad we can't just use lrint.

Change-Id: I9c08289dde742fac0d673df8559a1892edcd1bc7

This happens when exiting single_motion_search() early due to adaptive_motion_search.

Change-Id: Ic396e7e31e59ff219bb66a459c873c9e5b17400d

Removed the comment "// __asm emms;" from all calls
to vp9_clear_system_state.

Change-Id: Ib4dae69c1cdf3f185b04184a870cd70c4d703f10

In good quality mode motion search, the best matches are normally
found after searching in a large area. In real time mode, to make
encoding fast, a center-biased fast HEX search is used, which
converges quickly most of the time. A 4-point diamond search is
also carried out as the following refining search, which gives more
precise results, and maintains good motion search quality.

At speed 5, the borg test on rtc set showed an overall PSNR loss of
0.936%. The encoding speed gain is 4% - 5%.

Change-Id: I42cd68bb56a09ca1b86293c99d5f7312225ca7ae

Run sub-pixel motion search when NEWMV gives lower rate-distortion
cost. This improves coding performance of derf set by 8%, std-hd by
2.2%.

Change-Id: Ife50f7fda8463927784fe59a41cc439c833e941a

Change-Id: Ia5b35494e4e18758f9f6c172526db83a87fdaa26

Change-Id: I02cc50648b62768e20d2f465b5ad09648b1abe93

- Rename and make static
  s/vp9_compute_qdelta_by_rate/compute_qdelta_by_rate/
- Make base_q_index an integer.
- Add a cast.

Change-Id: Iea8d1397fd2717e7373b182ec51f5db960ef2cca

Change-Id: Ica1b583d69810182f621de757d2543b2a3b35566

Change-Id: If2e8e06c74d065323523904ff1771590fd48cabc

Change-Id: I29e4d3a3c8cceb18825371bb78c83c0e7dd86e0f

Optimizing 2 functions to process 32 elements in parallel instead of 16:
1. vp9_sub_pixel_variance64x64
2. vp9_sub_pixel_variance32x32
both of those function were calling vp9_sub_pixel_variance16xh_ssse3
instead of calling that function, it calls vp9_sub_pixel_variance32xh_avx2
that is written in avx2 and process 32 elements in parallel.
This Optimization gave 70% function level gain and 2% user level gain

Change-Id: I4f5cb386b346ff6c878a094e1c3b37e418e50bde

Change-Id: I568861ba1d43620865ad9a98a97eef37a51fd856

Minor fix to ensure that positive and negative cpu_used
values produce the same output.

Change-Id: I9157d05cb9a7c0bd57a4d8a9f268205a825b9b0b

This was inadvertently left out in a previous refactoring step.

Change-Id: Idf3350e95152f876a1a1a4591dd30c8981856c96

Change-Id: I151c6c9396b8ea1ce2e05b80359f60f0d38af138

Change-Id: I65677b7822204dc7344c67b8080e90633afc13dc

Change-Id: Ibe4276fa9ffeb2ef30871d6db8ac75c4648f1e58

Change-Id: I8f1107a33f0ec51010fb00eae3d28ee8b4d748c2

Change-Id: I4deb1b97eec6b1244e3460a1162b41fa5312654a

Change-Id: Ifd6b2d36d91237b5f38853a3a8a529d8be38ba09

Change-Id: Iacda473090ae84c798f1d93df8284f34bdf646a5

Change-Id: If3a2edd744eb76337fa78f34d0e059cda2c6da54

Change-Id: Iec8a51bdea6d6c916051d3bc5bbc6d00754d0cc8

Change-Id: I7546cc8db4decbcd094ad76c64385b97666331b0

Change-Id: I6fe9ec50f937b12fd9c9321465270e289dbbc59d

Change-Id: If8e340dd6823323025a12f851e78fffdbcaaf6f8