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Change-Id: Iab1217c7eb006c72e86e4261576b775b7debafd3

This commit allows the sub8x8 blocks to compose and filter their
chroma components for supertx in cb4x4 mode. The coding gains of
supertx and cb4x4 are largely additive:

          supertx      cb4x4       cb4x4 + supertx
lowres     -1.0%       -2.7%        -3.64%
midres     -0.8%       -1.3%        -2.10%

Change-Id: Ie7d09f6fceb36ce375e56773728f05dd628786fe

This allows the cb4x4 mode to work with ref-mv and supertx modes.

Change-Id: Ib9747d2c8a2b036fb246ca04bf7cc8c8f40931bf

This commit makes the cb4x4 mode support supertx operation.

Change-Id: I1a713b2268c1029aebeb43aa6aeb0fa37b16810f

Replace hard coded numbers with table access. Avoid comparing
values from different enums.

Change-Id: I43216db4a9b13ee317e8e517683946f526e5ca0e

Remove unused chunk of codes for sub8x8 inside this function.

Change-Id: Ie49d707b3ceeeee3b439e46c9d0e63abd4ae104c

This uses a segmentation mask (which is temporarily computed arbitrarily)
to blend predictors in compound prediction. The mask will be computed
using a color segmentation in a followup patch.
Change-Id: I2d24cf27a8589211f8a70779a5be2d61746406b9

No need of special handle on sub8x8 block sizes.

Change-Id: I8487cd68eda0882fe50550af3998dc941ec13b21

This is to avoid compiler warning of "mixed declarations and code".

Change-Id: I887a1cf27e777672563bda527b3d6cf70a589a8a

Relative to previous ext-inter:
lowres: -0.177%
     or -0.029% (with USE_RECT_INTERINTRA = 0)

* When predicting interintra modes, the previous code did not provide
  the intra predictor with the correct context during rdopt. Add an
  explicit 'ctx' parameter to the relevant functions, to provide this
  context.
  This fixes a nondeterminism bug, which was causing test failures in
  *EncoderThreadTest*

* For rectangular blocks, build_intra_predictors_for_interintra needs
  to overwrite part of the context buffer in order to set up the
  correct context for intra prediction. We now restore the original
  contents afterwards.

* Add a flag to enable/disable rectangular interintra prediction;
  disabling improves encoding speed but reduces BDRATE improvement.

Change-Id: I7458c036c7f94df9ab1ba0c7efa79aeaa7e17118

This was caused by a refactor in Ie105a7baf6a2c2258d3ef117e727957e4393f51b

Change-Id: I3a1d958d1e8759b9c1c215ea48763ee8deb62cf3

No change in performance

Change-Id: Ie105a7baf6a2c2258d3ef117e727957e4393f51b

Change-Id: Ia91388a2aa6def93b9b6167b983b20397ac4573b

Replace the computation of block size in pixels with lookup table
directly.

Change-Id: I39589b2bc1d20372969ff5ad0f60639e64a19b41

Performance gain (REF_MV on by default)
WARPED_MOTION: 1.061%
WARPED_MOTION+MOTION_VAR: 2.917%
MOTION_VAR: 2.337%

Change-Id: I43f742a02cdd43d13ef333a0a15087062ad020ab

To facilitate further experiments.
Fixes border, uses standard interpolation filters for
translation only global model, and some refactoring.

Change-Id: I38af6cb83723f92baed23e28d7fc9a0a9544757e

It is possible down the road new compound modes are added in addition to
COMPOUND_AVERAGE and COMPOUND_WEDGE.

Change-Id: I85985d4c104effd34df13845344aac2a08d28019

This is currently just a refactor and creates no change in performance.
It allows new compound types to be added easily in the future to
facilitate experiments with segmentation masks.

Change-Id: If48fed216d482454fabb45a304b4220ada0dbdee

After https://aomedia-review.googlesource.com/#/c/5589/ ,
the Global_Motion_Params and GLOBAL_MOTION_TYPE types
are redundant, and can be removed in favour of
WarpedMotionParams and TransformationType respectively.

Change-Id: I33f3796e5c469e595fd012ccdb65a672dd1bb86c

lowres: -0.401% BDRATE (tempete -5.4%)

Also includes some fixes and cleanups.

Change-Id: I82922a453fad59fad2f12829d2ef1e56b2d20949

The function module in inter_predictor() has been changed to
universally support arbitrary block size inter prediction. Hence
sub8x8mc can be a standalone experiment now.

Change-Id: Ie9d87f61fc317b1d114edb4e0bf5544f918ed08e

Change-Id: Ia69bceef24b61b0a222783eba79e7a70bb60edd8

Covering commits 1c263e03 and 79d8a07d from AOM codebase

Change-Id: I6400e5f99bbb2ef6584ef232d465e520230c06e0

Change-Id: Ia544974f83c6b7f9cdb148eeb13a6d0c6eb4ed24

Change-Id: I400e95161d576510423880b5b9923a2307b5eb02

Handle the sub8x8 chroma component at the unit of 2x2/4x2/2x4 level
and use the motion vector inherited from the luma component. This
improves the coding performance:

lowres 0.4%
midres 0.25%
hdres  0.15%

Change-Id: I34dff4218cfa3e5d55e7ed0341f36f4719389f7e

- Const correctness
- Refactoring
- Make variables local when possible etc
- Remove -Wcast-qual to allow explicitly casting away const.

Cherry-picked from aomedia/master: c27fcccc
And then a number of more const correctness changes to make sure other
experiments build OK.

Change-Id: I77c18d99d21218fbdc9b186d7ed3792dc401a0a0

When the neighbor uses a sub8x8 partition, to predict chroma pixels in
the overlapping region, instead of averaging all mvs in the 8x8 block,
only apply those belonging to neighboring sub8x8 parts to the
corresponding sub-regions (no averaging).
The change applies to both settings w/ and w/o SUB8X8_MC experiment.

Change-Id: I033e9f218d02bc9879841b794931b575fac14f25

To get ready for pulling AV1 to nextgenv2
Replace the experimental flag by MOTION_VAR. Rename major variables.

Change-Id: If6cf4f37b9319c46d8f90df551cc7295d66ca205

Correct distance to right and bottom edge when predicting the overlapping
region using neighbor predictors. The distance is more than that for the
whole block, so the condition in clamp_mv will be looser.

Change-Id: I40dfdd9c0a2a5e854cac12195b282493981e9d93

Change-Id: If36417c1384646da57453344b208e7653a4d31e5

Change-Id: If22018f8911d9d7ee99c2127bdfcc56e42b0e2d7

this matches style guidelines and stabilizes successive runs of
clang-format across the tree. remaining types should be address in
successive commits.

Change-Id: I6ad3f69cf0a22cb9a9b895b272195f891f71170f

Change-Id: I2b2b70e756b7eb9611b7b33b7d5f19b3b30e0a50

Cherry-Picked the following commits:
0defd8f2 Changed "WebM" to "AOMedia" & "webm" to "aomedia"
54e66767 Replace "VPx" by "AVx"
5082a369 Change "Vpx" to "Avx"
7df44f17 Replace "Vp9" w/ "Av1"
967f722f Remove kVp9CodecId
828f30ce Change "Vp8" to "AOM"
030b5ffc AUTHORS regenerated
2524caee Add ref-mv experimental flag
016762be Change copyright notice to AOMedia form
81e55269 Replace vp9 w/ av1
9b94565b Add missing files
fa8ca9f2 Change "vp9" to "av1"
ec838b76  Convert "vp8" to "aom"
80edfa01 Change "VP9" to "AV1"
d1a11fb9 Change "vp8" to "aom"
7b582513 Point to WebM test data
dd1a5c8d Replace "VP8" with "AOM"
ff00fc0f Change "VPX" to "AOM"
01dee0bb Change "vp10" to "av1" in source code
cebe6f0c Convert "vpx" to "aom"
17b05679 rename vp10*.mk to av1_*.mk
fe5f8a8a rename files vp10_* to av1_*

Change-Id: I6fc3d18eb11fc171e46140c836ad5339cf6c9419

Manually cherry-picked commits:
ceef0583 libvpx->libaom part2
3d26d916 libvpx -> libaom
cfea7dd7 vp10/ -> av1/
3a8eff73 Fix a build issue for a test
bf4202ed Rename vpx to aom

Change-Id: I1b0eb5a40796e3aaf41c58984b4229a439a597dc

Change-Id: I01d8241eba3ccaf4d06c00a51df2d17c126f6f9d

This patch only includes inter frame reconstruction using gm
parameters when GLOBAL_MOTION and/or VP9_HIGHBITDEPTH are enabled.
GM is not currently used when EXT_INTER or DUAL_FILTER is enabled.
This will be added in a followup patch. For now, these experiments
will take precedence over GLOBAL_MOTION when they are all enabled.

Change-Id: I930ddda529c44d7245dbb56db3c9c5524cf45473

These are needed for the warping function in the global motion
experiment.

Change-Id: Iaab176d0c0b90f6b938e2bac48b24c07e87e3cd9

Use vpx_blend_a64_hmask and vpx_blend_a64_vmask to speed up
computing the obmc predictor. Clean up calc_target_weighted_pred.

Encoder speedup: 1.3%
Decoder speedup: 6.5%

Change-Id: I0c774fe53d22399e92a10d1daf3af0010d88d2c5