In preparation for adding more 1D variants with ADST/FlipADST/etc.

BDRATE actually improves by 0.21% on lowres.

Change-Id: I2fa4720c69fe001fa666119a284dfc6b17fffab2

Using the up-sampled reference frames in sub-pixel motion search is
enabled as a speed feature for good-quality mode speed 0 and speed 1.

Change-Id: Ieb454bf8c646ddb99e87bd64c8e74dbd78d84a50

Change-Id: Ie20cd35a4c96443c0de234d2cf097187a70ec8dd

Change-Id: I6fab352eb1f7d9c5dc783a4d4d878b6b42838ca2

Change-Id: I00314ec296e8368f1239a556b3a55feac9cec7ae

Coding gain on screen_content is 12.2% (was 6.6%).

Some features such as frame-level color buffer, adaptive
entropy coding, are coming in future patches.

Change-Id: I2658cf5ec0cbb02cff685475759f3b68c9807697

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: I5df744dc6b21ed9dbbf6ddf38004f2a9e88b7d00

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