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Parse and assign the tx_size with enum values in the decoding
process.

Change-Id: I85eb0f3e5d9d50c43db7694bac67befbfc8001e0

Simplify the code logic and make the codebase easier to maintain.

Change-Id: I867060614209f3d82426bb97e2e4d7d16db2097b

Make TX_4x4 as the minimum selectable transform size form bit-stream
syntax perspective. Use value 0 as the minimum supported transform
size unit for the block coding.

Change-Id: Ieb3167216a96aaddb0810a424ccaaf8ae896fec5

BDR improvements:
     PSNR  PSNRHVS SSIM  MSSSIM CIEDE2000 PSNR Cb  PSNR Cr
LL: -0.17% -0.13% -0.11% -0.12%   -0.18%   -0.19%   -0.21%
HL: -0.21% -0.14% -0.15% -0.11%   -0.37%   -0.39%   -0.52%

Change-Id: I58c00a1cc0ddfc3376644f66345e99472482a613

Change-Id: I518ad9c58973910eb0bdcb377f2d90138208c570

Change-Id: I4a6d84007bc17b89cfd8d8f2440bf2968505bd6a

It was a fairly small production optimization for VP9.

Change-Id: Ie93b474ea5b7e63384a7c0b3a56b135462d1471b

Change-Id: I544989eae45b7dda04250365c3de99f50110a76b

Change-Id: Ia09edf92bf9f7ecacc65c232ac6e656cde236634

Move computing the segmentation_probs.tree_cdf table per symbol to
 computing it only when the probabilities are updated.

Change-Id: I3826418094bbaca4ded87de5ff04d4b27c85e35a

The code that generates the raw distribution is based on a MATLAB
program by Debargha Mukherjee, and the algorithm used to quantize the
distribution comes from the ANS Toolkit by Jarek Duda.

Change-Id: Ic273f7d9e43e3ecd999e9e7e04cde57e8559375a

This brings it in line with the Daala CDFs and will make it easier to
share code.

Change-Id: Idfd2d2b33c3b9b2c4e72ce72fb3d8039013448b9

1. mem.h: improve the macro to handle n==0
2. borders_test.cc: fix a typo in

Change-Id: I24729aaf7282b2080d9a8325d481887b54341260

Change-Id: Id3cf866b147967b36f1c62e08b4a1adfb837c34c

This fixes MSVC build errors.

Change-Id: I1a05fb194284d57c03899bd597a561ece3f16a9e

Change-Id: Ib23ff963e78558a971aecc7e8b4c6184849ebf7a

Use table access to replace the enum arithmetic computations.

Change-Id: I573c301b16f30eb9fa147b3b3ec02af5cdad7444

Change-Id: Ib30ba93e86f03eb5c4705d0327d0dfc6fd9a7f72

Use table to replace the arithmetic computation for mapping between
transform block and pixel number.

Change-Id: Ica71af9891bb9ab8f0bab30794e1021066d57d64

Since diff can be negative and sum of diff can be negative too.

Change-Id: I822a4e90cc4fa06c796b7a87a776cf62a23a7621

Change-Id: I79c1b3171823376c4f6dcc72fe829e00b7bd46b4

Remove redundant variable definition.

Change-Id: Ie368c9157a3d28847b8bb5f49c6901d5d84450e8

Change-Id: Ib763971bf59859ffc457690b2f084880dc42943f

Change-Id: If27d9c12f737c20995df67ac56dc997f1eeee163

previously "vpxor" instruction was mistakenly replaced by "aomor" as
port of vpx->aom renaming change. This commit revert that change for
where vpxor instruction should be used in asm code.

Change-Id: I411d95f5d8fa5ed380c8b0d6021118b6c1e9bfb9

Use lookup table to replace the arithmetic computation for transform
block step.

Change-Id: Ie7cb33e75e3b90aa9e9b46f8d11fa1d03e1ebe85

Change-Id: I096d3f1310116ab87eaa769cdcedf400f6d62dbb

Change-Id: I221bf4520d7030133e3b2fea883a995b3d6f6282

1. aom_mem.c: inline->INLINE
2. rd.c: make function declaration consistent.

Change-Id: I91ce13216e6ae7a82417a290b0575e83045f5dd2

Change-Id: Ie03f9a5b0a4c708a586532198d755a1e7509f149

Change-Id: I037f4c44f621a7e909b82ccb6a299d41bcbf8607

Change-Id: I129476e2b8294e660c64723cbc74eb055458c19c

Use the table access to retrieve pixel numbers from tx_size.

Change-Id: Ibf392dcfdf80606b6ab972d60550ed75cbe652db

Change-Id: I37008c93c8a5c27ab59fc03955c9989ee481ba36

This patch fixed issue 47: "Segfault when encoding 10bit video".
The incorrect setting of use_highbitdepth caused a crash.

Change-Id: I5657342f57d57dd08598bb25cbe7f8fcee809bd7

Change-Id: I8af087d97cadb0c2a9e37a4e4723246cdd397995

Palette code originally by huisu@. Gives 11.68% BDRate improvement on
screen content set.

Last 7 small speedup patches from me, giving 10% speedup overall for
screen content set.

From aomedia/master:
Revert 57fa6267 : Remove color_index_map

From libvpx/nextgenv2:
c93e5cc3 : Bring palette back to nextgenv2
827e1b3f : Add test for screen content coding tools in end to end test
78b0bd0a : Complete (mostly) migration of palette mode
8a128c2a : Fixes for Palette mode
4ab00912 : Palette mode: record selected transform type
cbb8be76 : Set block size upper bound for Palette mode
bb0e6921 : Convert palette from double to float.
a0a23b7f : faster code: replace nested for loops by memcpy().
016a5daa : Palette code: simpler and faster duplicate removal
d0000208 : Palette code cleanup
6dde8018 : Use built-in qsort(); create remove_dup() method.
f746c103 : Handle centroid rounding inside palette.c itself.
d68c7b6d : Palette: count Y colors only for screen content.
f1906e96 : Palette code: remove the use of same if condition twice.

Locally made sure all combinations of "--enable-ext-intra" and/or
"--enable-palette" and/or "--enable-aom-highbitdepth" build OK.

P.S. Note for future reference:
EXT_INTRA experiment has only been moved *partially* to aomedia at this
point. If and when the rest is moved to aomedia, EXT_INTRA + PALETTE
combo needs to be moved to aomedia as well.

Change-Id: I8826780014ec8a88281e56c8258b7c966121b46f

2 bugs were fixed in VP9.
https://chromium-review.googlesource.com/#/c/366873/
https://chromium-review.googlesource.com/#/c/368440/
Fixed them in AV1 as well.

Change-Id: I88367f630b2d6fef1ca5369fc0f0f3fffe2bdbdd

Change-Id: Ie90dd06c387119ccd9c920a328c942477df00bb7

The formatting of OD_UNIFORM_CDFS_Q15[] in entcode.c is helpful for
 for understanding what is contained in the array (e.g., the uniform
 probability distributions of small sizes 2 through 16).
This patch reverts the change made in f4b2926d and adds linter hints to
 ignore the formatting.

Change-Id: I2ad9fe6673b86e6067cb97b40f0f0e69a119cdf5