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This is the first patch for ext_delta_q experiment.
* Allow delta q to work with segment features

Change-Id: I9455ebb3b5b23b41daa4afa1149672a20d3a3f2c

This experiment still requires review from AOMedia due to
conflicts with other adopted experiments.

Change-Id: I22c7ae3fd0aac7f537cabc6fc63218fb97851a7a

Change-Id: I359d100548ed337d643a421591243565b08945ed

It isn't used outside of its source file.

BUG=aomedia:442

Change-Id: I7f9f62b3a8e0e965878fc21af6c64b91883686fc

cherry pick of libvpx commit 6554333b59cf773983c7cacbd832d754f75139e8

BUG=aomedia:443

Change-Id: Ifebdc9ef37850508eb4b8e572fd0f6026ab04987

Use out_sse and out_dist directly.

BUG=aomedia:443

Change-Id: Ifb262eca9b0d02a20bbcf8a7fefeaa7a7e0c3e10

Change-Id: I109e382097a8fcbf85a339f97f6297252f01b021

This fixes crashes due to infinite recursion when var_tx,
ext_tx and rect_tx are enabled without cb4x4. This
is the first part of an ongoing fix for this experiment
interaction.

Change-Id: I674f28294666102aff2265f6b6112816cac17378

Ported an out of range MV bug fix from VP9.
(https://chromium-review.googlesource.com/c/458180/)

Change-Id: Id2a7636f3c78547f8ae2081c4bcba709910b1650

Ported a bug fix from VP9.
(https://bugs.chromium.org/p/webm/issues/detail?id=1354)

Change-Id: Ib712b6dfb6aa86631f4b2a403c8364dbe1104f21

Adds the CfL experiment flag and computes a block-level DC_PRED that is
required by CfL in order to compute alpha_cb and alpha_cr.

The rate-distorsion impact of computing DC_PRED at the prediction block level
for chroma planes is rather small

Subset 1:
master_no_cdef@2017-04-18T20:37:05.712Z
  -> block_DCPRED_no_cdef@2017-04-18T20:38:07.381
  PSNR | PSNR Cb | PSNR Cr | PSNR HVS |   SSIM | MS SSIM | CIEDE 2000
0.0712 |  0.0337 | -0.1692 |   0.0693 | 0.0814 |  0.0710 |    -0.0063
Note: CDEF was disabled because of problematic asserts.

Change-Id: I44d1cde8605b108366f4bd4cedbf5159dbbb5880

Ported a bug fix from VP9.
(https://chromium-review.googlesource.com/c/473566/)

Change-Id: I5669c3878b34a5fda4ce1aabb8c653ea823d5e42

BUG=aomedia:448

Change-Id: If02808e3e27bf7dcb8dfdcd6899ed78a96a8fd44

Consolidate the CPU and RTCD related build configuration code
in cpu.cmake and rtcd_config.cmake instead of having files for
each target CPU.

BUG=https://bugs.chromium.org/p/aomedia/issues/detail?id=76

Change-Id: I8aad401f9fca60ba735360ca4947cd1c41c4fa63

BUG=aomedia:451

Change-Id: I5636c1993a496ddff5d27afa7e72dd787276a86c

Change-Id: I00af23ce8c62123a634aa34c46475edc0f4d428e

niklas_1280_720_30.yuv is required by --enable-encode-perf-tests too.
missed in port from libvpx:
86251126 test-data: restrict large yuv to perf tests

Change-Id: I9c961c34bafef34b066f0690d681ab4b522c485c

C sources only for now

BUG=aomedia:445

Change-Id: I79ff81c42778e2836028240df70edf973555018c

quiets -Wshorten-64-to-32 warnings

BUG=aomedia:445

Change-Id: Ieae58e09804e8707393a3813529f3c6316eef888

make tmp an int64 as 12-bit may exceed 32-bits

BUG=aomedia:445

Change-Id: I5e7bc9e90b6c3c0c30e725efaf5f5e217cfbe82a

BUG=aomedia:445

Change-Id: I8c24a2fc6557bcba83ae077f8a13a58795deda55

size_t -> uint32_t, quiets -Wshorten-64-to-32 warnings

BUG=aomedia:445

Change-Id: Id714ece4ca672ac2a6beabca32a5fa30d83c8231

ported from libvpx:

Added casts to remove warnings:

In regards to the safety of these casts they are of two types:-

- Normalized bits per (16x16) MB stored in a 32 bit int (This is safe as
  bits per MB even with << 9 normalization cant overflow 32 bits. Even
  raw 12 bits hdr source even would only be  29 bits :- (4+4+12+9) and
  the encoder imposes much stricter limits than this on max bit rate.

- Cast as part of variance calculations.  There is an internal cast up
  to 64 bit for the Sum X Sum calculation, but after normalization
  dividing by the number of points the result will always be <= the SSE
  value.

BUG=aomedia:445

Change-Id: I4e700236ed83d6b2b1955e92e84c3b1978b9eaa0

This reverts commit c92c6e9d.

Reason for revert:

The lowbd version of the function is called even with CONFIG_HIGHBITDEPTH
on, when bit depth == 8. And that particular case will not work as
before with this change.

BUG=aomedia:442

Change-Id: I50c0a1238c93d2c729ab878cf04ca417fee3b202

Only differences:
- Initial values of 'out_ptr' were different.
- Macros used to load g13, g15, g5 and g7 were different, but they were
actually equivalent.

BUG=aomedia:442

Change-Id: I58bbb97e4d9ed3bebabaaa24442021703415aaec

This experiment extracts the post compound rounding feature
from convolve_round experiment

                      lowres
convolve_round       -1.493%
compound_round only  -0.874%

Change-Id: I084cf10b5155edd408848e44681f8af66b803724

Exact same functions were present in two encoder binaries.

BUG=aomedia:442

Change-Id: Ib169c29cee8ae40cbd71c26099a3339ec7143315

Bit accounting is really a decoder thing

BUG=aomedia:450

Change-Id: Ib0229064caa98f742e2df08fd79c0451b0d8c09e

This reverts commit 8cd0e7ef.

Reason for revert:
This change breaks av1_warp_affine_c when CONFIG_HIGHBITDEPTH is enabled.

In particular, running ./test_libaom --gtest_filter=*Warp* compiled with --enable-warped-motion --enable-highbitdepth shows several test failures, followed by a segmentation fault when it gets up to test SSE2/AV1WarpFilterTest.CheckOutput/4

The tricky part is that the use the lowbd version of the function is dependent on a mix of two conditions:
(1) Compile time check for CONFIG_HIGHBITDEPTH and
(2) Run time check to see if bit-depth == 8
So, it is tricky to refactor.

BUG=aomedia:442

Change-Id: I610c537fb65bde4f357185a13081639f906351de

All of these were duplicated in two places.

BUG=aomedia:442

Change-Id: I8eb027c814f58eb23f71a8b8b4691970a333ad96

Change-Id: Ie1e45b318d5f1b53c6519d91bd3e9c11a30ec56d

Change-Id: If02055bf288d2def45fb2fb2f0a447a41301ba04

- normalize casts
- remove unused array
- add consts
- declare variables late

BUG=aomedia:450

Change-Id: I2d3bc6ba2a9b05c779d3b451907abb3fc747d79a

BUG=aomedia:442

Change-Id: I5cec560e427bf8628cbaae85aea4cdb19b74659f

string literal to int

BUG=aomedia:445

Change-Id: I262911ad4e4b52f2d203c03d9bdfcbaa1a81984b

Also use int instead of int64_t since sf->exhaustive_searches_thresh is
an int and we only make it smaller.

Change-Id: I38c9ebd97f085cb7ce5094dfc98942bb2171ee0f

Fixed a couple of compiling warnings when the "deep" analyzer is on.

Change-Id: I96842e8226f1993a1329217c0dbf4a081d0c94f9

Change-Id: I88041e954fa6cff5986458309bb28fa2e3c9758c

prevents leak / static analysis  warnings on ASSERT*() failures

BUG=aomedia:447

Change-Id: I1d3edbdbb18dbbe3b17691971348a8121cf09afa

The code for forward and reverse transform was exactly same, so moved to
a common header.

BUG=aomedia:442

Change-Id: Ic0d82b6213127c757c81e7a84045a30e28036161