Instead of testing all interpfilter-BMC/OBMC combinations, we choose
the best interpolation filter based on regular inter prediction.

Reduction in encoding time: ~10%
Drop in performance gain: 0.08% lowres, 0.04% midres

Change-Id: Ifc19097a918ac76b529db9af4c60e2c70e93f7ad

Filled in prune one and prune two. Prune three is still
being experimented with.

Change-Id: Ic07f828c448e86cacb0369aa3a9a0feb2edae054

This commit enables the hybrid 1-D/2-D transform coding scheme for
high bit-depth setting. It improves the compression performance of
ext-tx experiment by 0.98% for lowres_all set.

Change-Id: Ic27f5037f2c36b095a93b9f15dbae34bdcdf00aa

Incorporates wedge compound prediction modes.

Change-Id: Ie73b54b629105b9dcc5f3763be87f35b09ad2ec7

Change-Id: I442475e559be2acdc1c2a3e5ca021b3de77adda5

This commit enables the 1-D transform to use Manhattan grid vertical
and horizontal scan order for transform coefficient entropy coding.

Enabled in inter prediction mode, the hybrid 1D/2D transform coding
scheme outperforms the 2D-DCT based coding system used in VP9 by
lowres_all  1.7%
hdres_all   1.4%

As one coding option, in addition to the existing 17 other transform
types in ext-tx experiment, the 1D/2D hybrid transform improves
the coding gains:
lowres_all  2.2% -> 3.0%

Change-Id: I9cefa9d9e38224546d0afd67feecd9f8d4a16ab0

No performance change.

Change-Id: If35125fed909d89235b303514f77a33183bb36b3

- Implemented fdst16_sse2(), fdst16_8col() against C version: fdst16().
- Turned on 7 DST related hybrid txfm types in vp10_fht16x16_sse2().
- Replaced vp10_fht10x10_c() with vp10_fht16x16_sse2() in
  fwd_txfm_16x16().
- Added vp10_fht16x16_sse2() unit test against C version:
  vp10_fht16x16_c() (--gtest_filter=*VP10Trans16x16*).
- Unit test passed.
- Speed improvement: 2.4%, 3.2%, 3.2%, for city_cif.y4m, garden_sif.y4m,
  and mobile_cif.y4m.

Change-Id: Ib30a67ce5d5964bef143d588d0f8fa438be8901f

Change-Id: I6c3bf5545c42030b484a8aaf434b63bd409a0487

Change-Id: Iccaacee9b7a66b016b5747a3902c236888ad4ba1

Pixel domain distortion calculation is enabled for the rd loop of
inter sub8x8 and intra 4x4 cases.

Coding gain: 0.124% derflr, 0.122% derfhd

Change-Id: I43b47fe81b4f5ccc1c66bc626bd310c413a1ed87

- Inherited base class TransformTestBase to derived class VP10Trans8x8HT.
- Employed RunCoeffCheck() to test vp10_fht8x8_sse2() against C reference
  function vp10_fht8x8_c().
- fdst8_sse2() related seven hybrid transform cases are covered in this
  test.
- Test passed (4 test cases w/o EXT_TX; 16 test cases with EXT_TX).

Change-Id: Id9a9b308c707164a120d9ceb2c30e572026fb1d0

This commit enables a hybrid 1-D/2-D transform coding scheme and
the accompany entropy coding system. It currently uses hybrid
1-D/2-D DCT transform coding. It provides coding performance gains:

lowres_all  0.55%
hdres_all   0.43%

Change-Id: I2b30dcafd21eb2bb3371f6e854cbab440a4dfa78

Change-Id: I7f7e26cd1d58eb38417200550c6fbf4108c9f942

Change-Id: Ia2aa7558f9f53da7dff970b30fe0a94958159ffb

For left side obmc, the input of the mask function is corrected as
the column coordinate.
Also, minor fixes for a compiler warning.

Change-Id: Ia981ef443d5b0285a93d73e5c7ab83f8c3a23464

Inherited class TransformTestBase to derived class VP10Trans4x4HT.
Employed RunCoeffCheck() to test vp10_fht4x4_sse2() against
C reference vp10_fht4x4_c().
fdst4_sse2() related seven hybrid transform cases are covered
 in this test.
Wrote a header file for test base class. Some modification to
make sure the base class can be used for 8x8, 16x16, 32x32 cases.
All related tests passed.

Change-Id: I6b19a39d3ea30b657847781e78e73b829998a57a

This sets up the interface for 3 speed features that progressively
eliminate a greater number of transforms in ext tx using
pre-trained support vector machines.
Each speed feature still needs to be implemented.

Change-Id: Ia508aeadc0cffdc080fb227f357a5d1dfbca08e2

This commit fixes an encoding issue related to var-tx and ref-mv
experiments that causes the codec to use random values for transform
block skip flag.

Change-Id: I8daa6d6b88ea45b5bbeb81b43dd0eeff545c8e5a

There is a ~0.1% gain.

Various experiments with different kinds of windowing functions to
follow.

Change-Id: I0787fddca53607ab39e53f919066839301938e68