Keep track of frame indexes for the references, and
constrain inter mode search for reference with same
temporal alignment.

Improves speed by about ~15%, no noticeable loss in
compression performance.

Change-Id: I5c407a8acca921234060c4fcef4afd7d734201c8

Lower the threshold for splitting 32x32->16x16 based on average variance,
and add lower bound condition for this split to occur. This prevents
unneccassry splitting for areas with very low variance.

Change-Id: Ibeb33b3d993632c2019f296eb87ef3b7e3568189

For non-rd variannce partition, speed >= 5:
Adjustments to reduce dragging artifcat of background area near
slow moving boundary.

-Decrease base threshold under low source noise conditions.
-Add condition to split 64x64/32x32 based on average variances
of lower level blocks.

PSNR/SSIM metrics go down ~0.7/0.9% on average on RTC set.
Visually helps to reduce dragging artifact on some rtc clips.

Change-Id: If1f0a1aef1ddacd67464520ca070e167abf82fac

Reallocate the xmm register usage so that no ARCH_X86_64 required.
Reduce memory access to the left neighbor by half.
Speed up by single digit on big core machine.

Change-Id: I392515ed8e8aeb02e6a717b3966b1ba13f5be990

Change-Id: I701ab4993be7cfb15b61a1adbbaf5565bd14ae27

GET_GOT modifies the stack pointer so the offset for left's address will
be wrong if loaded afterword.

Change-Id: Iff9433aec45f5f6fe1a59ed8080c589bad429536

* changes:
  Fix two msvc build issues
  Fix enc/dec mismatches for aq-mode 1 and 2

Removed unused GET_GOT_SAVE_ARG.

Change-Id: I0ae41c2d0dcd6d7d1c8dda05062fcdb737fd917d

This patch continues to fix the win32 crash issue:
https://bugs.chromium.org/p/webm/issues/detail?id=1105

Johann's patch is here:
https://chromium-review.googlesource.com/#/c/316446/2

Change-Id: I7fe191c717e40df8602e229371321efb0d689375

Change-Id: Iece22223773dd6d0f87f8f59827705acd2ebe2a4

Remove some redundant code.

Change-Id: Ida2e8c0ce28770f7a9545ca014fe792b04295260

Change-Id: Iefad9d8d96a08dcc788a5efdca2df6a815d1205f

Relocate the function from SSSE3 to SSE2, Unroll loop from 16 to 8,
and reduce mem access to left.
Speed up by single digit in ./test_intra_pred_speed on big core
machines.

Change-Id: I2b7fc95ffc0c42145be2baca4dc77116dff1c960

Change-Id: Ifdcfb91416be8189569f703bee9be253d7b3d9b6

Xcode 7 refuses to link to x86 and x86_64 code that's built for
iphone sim, so add an extra command line flag that forces iosbuild
to use darwin15 targets.

Change-Id: I2228d458f5cccf4d26866040380a974f88d9d360

This commit enables the new temporal filter system for VP9. For
speed 1, it improves the compression performance:
derf  0.54%
stdhd 1.62%

Change-Id: I041760044def943e464345223790d4efad70b91e

* changes:
  test.mk: simplify vp8/9 checks
  test.mk: regroup white box tests
  test.mk: enable test_intra_pred_speed unconditionally

Change-Id: I3ef9a9648841374ed3cc865a02053c14ad821a20

This change has been imported from VP9 and
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 natural video clips, however, where the step search
is performing well, the quality gain and speed impact are small.

Change-Id: Iac24152ae239f42a246f39ee5f00fe62d193cb98

4x4 Intra predictor implemented with MMX is replaced with SSE2.
Segfault in change 315561 when decoding vp8 is taken care of.

Change-Id: I083a7cb4eb8982954c20865160f91ebec777ec76