Coding gain on derflr drops to +1.83%.

Change-Id: If68c429f09422a70513d9f1e8e36e10c928e034a

tm_predictor_4x4 is implemented with SSE2 using XMM registers.
Speed up by ~25% in ./test_intra_pred_speed.

Change-Id: I25074b78d476a2cb17f81cf654bdfd80df2070e0

Existing condition only applied to temporal layers.

Change-Id: Icef20a59d0afc61d4e14dea01aff4786fa9e41ae

Remove MISC_FIXES flags except for the changes on MV precision, which
has a 0.1% performance drop.

On derflr, the impact is -0.012%.

Change-Id: I0a74e5a212dd0cb827192a318c92a714c9681e45

Zoe Liu authored Nov 09, 2015 and James Zern committed Nov 17, 2015

Change-Id: Ieec4a7be5945dc6de192e2d8292ab978baf47f53
(cherry picked from commit 20962964)

Change-Id: Ia7680ddf00dd50dd66bbb5753bae30b937988800

Reset the effective range of inter_tx_size, instead of the entire
array in the rate-distortion optimization loop.

Change-Id: Id453fbd6dddfe69f4e451ba8518c083326d5dd53

Change-Id: I5a4f1f7b9de20fbfc28cb743dcd29c0eeca736f8

Coding gain remains about the same, while overall speed is
substantially increased.

Change-Id: I2989bebcfd21092cd6a02653d4df4a3bf6780874

Change-Id: Ie43027f7d46c43df137fd4a7f731ff6ccb78fcee

Change-Id: I46abd85e2187b8f4c2846416a23fab26d9b9f67d

Temporary fix to make sure it always passes.

Change-Id: I56a0529986ad7049b6090f871c14e9e06d573d5f

This change alters the nature and use of exhaustive motion search.

Firstly any exhaustive search is preceded by a normal step search.
The exhaustive search is only carried out if the distortion resulting
from the step search is above a threshold value.

Secondly the simple +/- 64 exhaustive search is replaced by a
multi stage mesh based search where each stage has a range
and step/interval size. Subsequent stages use the best position from
the previous stage as the center of the search but use a reduced range
and interval size.

For example:
  stage 1: Range +/- 64 interval 4
  stage 2: Range +/- 32 interval 2
  stage 3: Range +/- 15 interval 1

This process, especially when it follows on from a normal step
search, has shown itself to be almost as effective as a full range
exhaustive search with step 1 but greatly lowers the computational
complexity such that it can be used in some cases for speeds 0-2.

This patch also removes a double exhaustive search for sub 8x8 blocks
which also contained  a bug (the two searches used different distortion
metrics).

For best quality in my test animation sequence this patch has almost
no impact on quality but improves encode speed by more than 5X.

Restricted use in good quality speeds 0-2 yields significant quality gains
on the animation test of 0.2 - 0.5 db with only a small impact on encode
speed. On most clips though the quality gain and speed impact are small.

Change-Id: Id22967a840e996e1db273f6ac4ff03f4f52d49aa

Change-Id: Ia1aba00603b32cee6835951d3d8f740937cf20f4

Change-Id: I635e37f81237e9703d7d9a11ed76a043f4ec6eb0

This reverts commit 6b79a1e3.

Change-Id: I5a4923ca8a6de842855ce0725e92567ccbed6fb7

* changes:
  Add adst_dct config to vp10_inv_txfm2d_cfg
  Add adst_adst config to vp10_inv_txfm2d_cfg
  Add dct_adst config to vp10_inv_txfm2d_cfg
  Add dct_dct config to vp10_inv_txfm2d_cfg

This commit re-designs the alternate reference frame generation
process. It employs non-local mean approach to produce more stable
pixel estimation for alternate reference frame. It improves the
compression performance gains:
derf   0.5%
hevcmr 0.8%
stdhd  1.3%
hevchr 1.0%

The encoding time at speed 0 is not affected.

Change-Id: Iaa757f0da189ce93812d69617a81bf630d449848

Add frame level global check and adjust some parameters.

Change-Id: I42103394f2d329781195d94ce6cbb5b3383eea17

Change-Id: Icfca27a567eb8929c312c6315856ee130d982a04

Change-Id: I91c722e480328ff95b8c57614d8176ccaceb2539