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Fix 1: in ext-inter + obmc config, properly identify if the left
predictor used for obmc is a compound one in the case that the
neighbor uses wedgeinterinter pred and we will dump the ALTREF part.
This will fix the seg fault in unit test:
VP10/AltRefForcedKeyTestLarge.Frame1IsKey/0

Fix 2: in ext-tile + obmc experiment, handle the case that the
above block does not fit in the same row tile with the current one,
so as to prevent potential crashes.

Change-Id: I1c177d4f4ad15e10d11d8756e146496437753eea

Change-Id: I2ec4f562e28a4673477e20186f9d6167b24b76b8

Removes integer divides from backward updates for VP10.
Currently this is put in as part of the entropy experiment.
Coding efficiency change is in the noise level.

Change-Id: I5b3c0ab6169ee6d82d0ca1778e264fd4577cdd32

lowres: improves by 0.1%

Change-Id: I245019916bf47c6e24bc8c3953b86715ab0193c9

With ext interp, write_switchable_interp_filter calls
vp10_is_interp_needed, which needs access to the reference frame
buffers to check if they are scaled, the ref frame buffer pointer
at this point used to be uninitialized in the encoder resulting in
bitstream syntax mismatch when the encoder/decoder did not read/write
the interp filter element consistently.

Change-Id: Ie0be2a19cbfcb5639a751aa857458e91c23b8fe3

* changes:
  transform tests: Avoid #if inside INSTANTIATE_TEST_CASE_P
  variance_test: Avoid #if inside INSTANTIATE_TEST_CASE_P

BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1200

Change-Id: Ia2dd6bb1ca2dff4422753af4a00156a12e488ed0

BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1200

Change-Id: Id1220b03e7be931e298848de381fdbce911e4a73

BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1200

Change-Id: I7f7754e7d1288b103a4510303d10afc68a7d8ca8

Change-Id: I18a3ef2ee6cdda57abcd27683b30b4e3136182c0

BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1187

Change-Id: Ied6d3d003ed6ab9cf4f03cdd1d0037ae755254f4

No performance changes

Change-Id: Ia489041253423ddf8ebc7e2d41fbfb9e138109f0

To fix tests in VP10/AltRefForcedKeyTestLarge.Frame1IsKey/*

Change-Id: I2f4f9fea515c9935d57006b709a9dd524f174b25

I believe this is necessary for computing the correct rate,
when not doing joint_motion_search.

Change-Id: I7634d6d7a5e6f0a6998edb4d577dd047d80df3c8

Valgrind flags these up as needed by handle_inter_mode.
Initializing fixes some assertion failures in the unit tests with
only ref-mv enabled.

Change-Id: I4d56c356692745dbecd9f790cdbb8dbfbaf72d55

Default case (when ext-partition was not configured) was incorrect
in encoder tile size initialization.

BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1197

Change-Id: Ibe57cb1dc16b9fa300573816fc16d2d2f6849fc6

Remove the restriction that the neighboring predictor cannot be
used in obmc prediction if it is an interintra or wedgeinterinter
block. The inter predictor of the interintra block, or the first
inter predictor(using LAST or GOLDEN frame) of the wedgeinterinter
block will be exploited in obmc prediction.

Coding gain: 0.248% (2.833%->3.081%) lowres

Change-Id: I4ac0368b9d2f2956f266b30c1ac97db8bafa0742

The bug is introduced by commit 1a0352d1, in which mv costs are
counted twice in joint_motion_search() in ext_inter experiment.

Change-Id: Ibace453df999d3c2e781d73f1f0912038fee2d4e

This commit enables 1/8 luma component motion vector precision
for all motion vector cases. It improves the compression performance
of lowres by 0.13% and hdres by 0.49%.

Change-Id: Iccfc85e8ee1c0154dfbd18f060344f1e3db5dc18

Reduce transform set for intra for 8x8 and smalller to 7 from 12.
Also fixes an issue with prob updates.

Enocder Speed-up about 8-10%

Coding efficiency very little change.
lowres: -2.996 (from -3.055 before)
midres: -2.482 (from -2.552 before)

Change-Id: I4ba50ff967521b33c748fe423bd92f7cf4105ebc

No performance changes.

Change-Id: Idd4043090fec09e57520bc970ed2e39e6f7e1a5e

MMX and X87 floating point instructions cannot be mixed freely on
the 32 bit x86 architecture.

This fixes a lot of unit tests in the 32bit build with
--enable-ext-intra.

BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1196

Change-Id: I0e1c3565f4b9cb4fc2d716e94d9c40e68b36fac8

- Optimization on tx_type: DCT_DCT, DCT_ADST, ADST_DCT, ADST_ADST.
- Overall encoder speed improves ~4.5%-6%.
- Update bit-exact unit test against current C version.

Change-Id: If751c030612245b1c2470200c9570cf40d655504