Change-Id: Icdce2ac2203bacdcbbbf17d1fc3308dc1ed15974

Change-Id: Ife4e7e4f62b217fd55db1ec3ef69c243f1651777

Allow per symbol cdf probability model update in the lv-map
encoding process.

Change-Id: Id0c4a659c04ffa981d8f04537eda2f1304d1682a

Support the per symbol cdf update at the level map syntax element
decoding process.

Change-Id: Id58bf86fb1c7c72dd14ddaa3781caaa27f446ef7

Initialize the cdf model for level map syntax elements.

Change-Id: I3865e07c126eb4c856803c12485b05782dea6526

When frame-superres is used with loop-restoration use a 4-tap
upscaler to reduce complexity.

Change-Id: Idf5712b9a006763c4000e264176b04aa8331b12f

Change-Id: Iec280ba1e314849ac027085f61e62a48dd224be4

Change-Id: I1b789acc18f1e69fb5db069ccd8bd17815938e9d

Change-Id: I3cc9cb8135ec5e8aa20c8cff901a2f37b3b459ee

BUG=aomedia:685

Change-Id: I0698b281fbaff2e77a50f5dc9a10d752de6c6f79

Change-Id: Idcc4c4722bd0379c8667b60115bfd85cf779a6ac

Doing this means that we don't have to memset temporary buffers to
zero in reconinter.c, which was taking ~5% of cycles in a short
encoding test (using perf to attach to a running encode).

Change-Id: Ibb6e31920000b876c6ee99f454d89c8a97e9fb31

Change-Id: I48ebf352c6c28e5c0c0e477b24828f0e3fe1dedb

Change-Id: Ie7c216218bd233e74970b261186df8f08aca6193

This will speed up lv_map by 4.3%

Change-Id: I886f67b9f1ae2e5f567e114fa34cf3ba437b8381

Change-Id: I6e9e1c94f688ed84c49d3b861dbac15c37248827

For sub-8x8 blocks, scan loop should have at least one iteration.
Previously, loop would be skipped if col_offset == 1 and n8_w == 1.

This change appears to have neutral effect on bdrate (+0.01).  This could
mean that extra MV candidates are not helping that much for sub-8x8.

Change-Id: Ic778312b39113ab8f348f5c7c18813593a831b7c

The orders_32x128 and orders_128x32 variables are only used when
CONFIG_EXT_PARTITION is false. Only define them in that case to avoid
a compiler warning.

Change-Id: Iebe297eff36b139caa83d039101cf16eb88ca8f8

The change is purely an encoder-side tuning, which constrains a GF
group interval to be either 8, or 12, or a number larger than 12
(maximum of 16). The change is under ext_refs.

This work has been part of the summer internship effort by chendixi@.

Further, this CL removes the experiment of flex_refs and merges it
into ext_refs, as flex_refs has been completely focused on the encoder
side optimization for ext_refs.

On Google test sets, above (stillness + interval enforcement) achieve
a coding gain in BDRate as follows, compared against the AV1 baseline
with all tools enabled by default (excluding ext-tx, global-motion,
and convolve-round for speed concern):

lowres: avg_psnr -0.193%; ovr_psnr -0.370%; ssim -0.332%
midres: avg_psnr -0.556%; ovr_psnr -0.680%; ssim -0.798%

Change-Id: Ia992d8ef0d82cc0ef2caba5eec9b26f0358e6bde

This will speed up lv_map exp by 8%

Change-Id: Ideaebfd855a3b2e7c2a07ac028407e7336b86697

This will speed up lv_map encoder time by 1.5%

Change-Id: Ia9f7634bae221d2fb8fb7dc6f3202c6bacdd5b32

the coverage flags are required at link time as well as compile time

Change-Id: Ic581f8ce747615f1fa1dc13d989d6e233e982572

CONFIG_UV_LVL --> CONFIG_LOOPFILTER_LEVEL
Change name because the experiment combines filter level search
in U, V plane, and horizontal, vertical search in Y plane.

Change-Id: Ia05b8f80cd93b60a0305eb94e5783559ef904c13

A new experiment for deblocking filter that separates vertical
and horizontal filter strengths. This experiment is based on the
assumption that non-flatness characteristics of vertical and
horizontal direction may differ. Therefore selecting different
filter strengths for vertical and horizontal can improve deblocking
performance.

The process of finding proper filter strength:
1. Search through the filter level under the constraint that
   (vertical == horizontal), and find the best solution.
2. Fix vertical level as the best solution found in step 1 and vary
   horizontal level to find the best value.
3. Fix the selected horizontal level, vary vertical level to find
   its best value.

The experiment is working with UV_LVL, sharing the same config flag.
The searching for horizontal and vertical filter strength only applies
on Y plane for now.

The experimental flag should be changed to filter_level later.

Change-Id: I164eec8d3ccb3da7ff109c5c55f4b52c1536ddf1

Currently nothing forbids wedge from being signalled when
the block is > 32X32, even though there is no corresponding wedge
mask for that block size.

BUG=aomedia:640
BUG=aomedia:636

Change-Id: I538be0229a12b5ef01b2e5a950c9f16ef9a5c51e

BUG=aomedia:697

Change-Id: Id7e971e515c9faa3df32e162befd57907278549d

This commit resolves an encoding failure issue due to the
tokenization in palette when the lv-map experiment is turned on.

BUG=aomedia:689

Change-Id: I8e476ae81e4d5d11c6aab7611dff9deb7fa63e9e

Mrc_tx is currently not working with lv_map, supertx and
coef_interleave and requires var_tx.

Change-Id: I6e9d7a54ed10a7a4e5c2088d5907ac8dc610a474

BUG=aomedia:685

Change-Id: I8490af713c53e8c420ef9dffa7c27bb71bbfca54

Coding gain becomes tiny on top of other experiments.

Change-Id: Ia89b1c2a2653f3833dff8ac8bb612eaa3ba18446

The AVX2 code only supports DCT_DCT. For other transform types, use
the C fallback.

Change-Id: I6b472ebd7d963c02aae80ff5846b7f2dcaf092ea

In patch 1cfe474b ("Simplify motion var parameters in reconinter.h"),
I moved some code from the header down into
reconinter.c. Unfortunately, I managed to drop it inside an #ifdef
CONFIG_EXT_INTER/#endif pair, which means the build won't work if
compiled with --disable-ext_inter.

This patch moves the hunk of code to above the #ifdef.

BUG=aomedia:694

Change-Id: I1e83bb500bcb607ee5911027b7c4787184703a57

Avoid changing the public API based on an experiment flag:

- Remove aom_config.h include from aom_image.h.
- Unconditionally include the existing API additions.
- Add some missing doc comments (silences Doxygen warnings).
- Return an error when using ctrl flags that require
  CONFIG_COLORSPACE_HEADERS when it's not enabled.
- Move colorspace_headers to the correct section of configure.
- Move CONFIG_COLORSPACE_HEADERS to the correct section of
  aom_config_defaults.cmake.
- clang-format style check appeasement

Change-Id: I7b5d72c6f9f1a5561409d7813ba59180d98d8805

Change-Id: Ib40f6be7d86704d5a5dd4f5bc7dd7331f18894df

Change-Id: Ib9dd9aaa5240ac7c90f9c276ae8ef9055fcf1fdd

Compute base level's count/mag together.
This will speed up lv_map exp by 5%

Change-Id: I479098ed2637fc05d454fb0a7dc9f09aa20401f3

This speed up lv_map exp by 5%

Change-Id: Ic71e55c9e777031fe671589a96d8f2053f4d65a5

Change-Id: Ibe9908fac4920686eaee6e7b261e0ce29241cf4c

Use --tune=[cdef-dist|daala-dist] to enable them.

Also, this commit set the use_activity_masking of PVQ as 0 by deafult,
which means that PVQ assumes daala-dist is not used by default.

Since we're currently not signaling which metric the encoder did use
in the bitstream, the compile flag AV1_PVQ_ENABLE_ACTIVITY_MASKING will tell PVQ
whether daala-dist is used or not.

This commit is the last part of prep-work to remove DIST_8X8, CDEF_DIST,
and DAALA_DIST experimental flags.

Change-Id: Ia465b4d6fe64aac7f04852c8f9f4bac3409d2435

Group and sort the CMake configuration changes in
aom_configure.cmake, and make sure everything that
changes a CONFIG_ variable is taken care of before
inclusion of cpu.cmake (which controls the RTCD
versions of the CONFIG_ vars).

Change-Id: Ib8069721de63c332392b7216fe3f194a077eb73c