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Change-Id: I71c9bedfae2304c201fe6621a20c03f4e26a85cf

This commit fixes an enc/dec mismatch issue in ext-partition-type
in the cb4x4 mode.

BUG=aomedia:137

Change-Id: I19f538a967a6059a40b1668eed076bc315b46149

Fix the intra block coding order when both ext-partition-type and
cb4x4 modes are turned on.

Change-Id: Iaaaf4742c53c4778526974f9d1dfdaed6ca3ce3c

This commit resolves the coding pipeline breakage when ext-partition
and cb4x4 are both enabled.

BUG=aomedia:138

Change-Id: Ic17da68af80d7a66565b0e1c69b895be27282a9a

If _d == 0 we are already off to the UB races due to out of bounds
access in OD_DIVU_SMALL_CONSTS.

Change-Id: I55a76c51483885bbb38667f14836be9830e130a8

Use the right number to free up the allocated memory space in
context space.

Change-Id: Ic2950c133d6234b9a4216283a6f4a1dea13128d1

The warp filter for the (0,1) case is changed to use a real
8-tap filter.

Improves coding efficiency.

BDRATE on lowres:
-0.772% (up from -0.633%) with --enable-global-motion
-1.124% (up from -1.001%) with --enable-warped-motion

Change-Id: I296efe36dbc72a7af74773b71b445f19a2aa7205

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

Change-Id: I762c7b8506833689e9bc356c4205840d4ee15cc8

Missing semi colon in tools_common.h.

Change-Id: I6a7c35a3f1f8cea36433334047ca8ececdf321a2

Add CONFIG_UNPOISON_PARTITION_CTX to cmake configuration. Also, remove
deleted file from CMakeLists.txt.

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

Change-Id: Ic26c19c0a12d638eebe94fd1eecda4a3e6c85bfc

Change-Id: I2d1b5f57a3bb19eb8c00eb4c2e6c7835047dc4ac

BUG=aomedia:111

Change-Id: I4ed7b6998023975cd2834266be9caf44e2631f2c

rand_r() isn't visible by default with -std=c99. this can be changed to
_POSIX_SOURCE after -std=c99 is enabled.; the portability of rand_r()
can be addressed in a future change.

BUG=aomedia:111

Change-Id: Id540f7f4a70007f70585261814b6fb09925fb32b

+ M_SQRT2 / M_SQRT1_2 to keep the daala diffs down

adapted from:
ebb9b28 Move math.h fills to odintrin.h.

these aren't visible by default with -std=c99.

BUG=aomedia:111

Change-Id: Iaa65986f35d914bf92c8c49a8211e0e6864c64e4

Fix compile warnings about implicit type conversion for
target=armv7-android-gcc in aomenc.c.

cherry-picked from libvpx:
380a26112 Fix compile warnings for target=armv7-android-gcc

BUG=aomedia:111

Change-Id: Iffa6af8ac5d87582f418e3425bee0e1d48f27b93

BUG=aomedia:111

Change-Id: I4e18705a36227e23f9ead51ef98a7bad51c998d4

model_rd_for_sb() can quickly compute an approximated RD cost. We
use the estimated RD cost to skip running full RD for some bad
mode candidates.

This only affects keyframe encoding. Observed 22% encoding time
reduction, and 0.03% compression loss.

Change-Id: I793f1eda98d67e8da9bc1648dcf272222b30a556

Change-Id: I08fb1ea2f48f8db966c181bff6f30653e6ef247d

Change-Id: I3d64ec4bbc72143b30a094ece7a6c711d6b479cd

Also rename warp_affine() to av1_warp_affine()

Change-Id: I945baff6be8a1ea942ce88dfcfa5344af6b3a966

Improve the speed of the warp filter itself by ~30%. This leads
to an overall decoder speedup of 5-20%, depending on bitrate,
for the global-motion experiment, and a small speedup for
warped-motion.

Applies a very minor change to the rounding during filter
selection (ROUND_POWER_OF_TWO makes slightly more sense here
than ROUND_POWER_OF_TWO_SIGNED, and is faster)

Change-Id: I3f364221d1ec35a8aac0d2c8b0e427f527d12e43

* Use the same function for domaintxfmrf in both highbd and lowbd
  cases
* Move an assertion out of a loop in
  apply_selfguided_restoration_highbd, to match the lowbd case

No change to output, but a decoder speed improvement of ~3.5%
(roughly independent of bitrate) with loop-restoration on a
10bpp sample.

Change-Id: I970a3bb8f1c6b0ac60aa4a6fe4e7f54d1e6c1452

* Change Wiener filter storage to match the format expected
  by the convolve functions

Change-Id: I4d1fb08a13cfc31e69e12c1cb4b2e510c6d8ae30

This will support adapting in each tile.

(https://bugs.chromium.org/p/aomedia/issues/detail?id=71)

Change-Id: I3eced47715749a48f78c4ccf151c4d0b58f36c0d

Change-Id: I2e39d2f23c8bb18878597e198b5ba7f98f07ecef

Make non-causal obmc option works in the cb4x4 mode.

Change-Id: If470ab61166752efc72719f9cd3e440560de1d51

This commit makes the motion-var support cb4x4 mode. It resolves
the encoding failure issue when both experiments are enabled.

BUG=aomedia:136

Change-Id: I2fa963d62cbdd24cc54d5a95d02f2dc226e6d2d0

Offset the default probability set in motion_var to account for
the added block sizes in cb4x4 mode.

Change-Id: I18d90fda1678fad2fc738036e0d9caff6ac894b7

Fix the bit-stream decoding failure introduced lately in cb4x4
and var-tx mode.

Change-Id: Id671b5ec98b32d65e4fb45812ee8d1b7037fd6ec

This commit adds 2x2 transform block scan order to make the
adaptive scan order support cb4x4 mode.

BUG=aomedia:135

Change-Id: Ic8c3ae9ed65d577df629524b617b386b5e799d4c

The check condtion on block size is deprecated. No need to keep
this assertion around.

Change-Id: Icf2dde2a678cbbce837798877634b7be54e86e67

When segment feature is on, frame level cm->tx_mode can be set to
ONLY_4X4 only if all segments are lossless. Otherwise will cause
bugs when xd->lossless[i] is 0 and xd->lossless[0] is 1.
Also fix the condition of coding tx_type, which should be on when
the qindex of current segment is > 0.

BUG=aomedia:106
BUG=aomedia:104

Change-Id: Ic076083bb78b3b99a6f7d17ec82ee402c64bcc52

We need uint16_t buf for storing no-rounding prediction.
Add uint16_t buf in conv_params for that.
This CL let us avoid changing interface of convolve functions.

Change-Id: I079fad911327f40ffb98e17c73e7638b1719c975

Separate prediction code and parameter generating code.
This will not change bitstream statistics.

Change-Id: I194480166d3f8641592e53683029be1d466cfba9

At the final round of encoding of each superblock, will go through
each prediction block to check if ncobmc mode is better than non-
overlapped prediction. Note that causal obmc mode is dumped here.

PSNR gain (MOTION_VAR + NCOBMC): -2.845% lowres

Change-Id: Ibe504f7f1882446a08ba426e1e9824bca73bf655

While encoding a key frame with quantizer = 0 and aq-mode = 1,
for some segment_ids, the quantizer got modified and could be
> 0, and lossless[segment_id] might be 0 or 1 depending on the
segment_id. Namely, blocks with lossless[segment_id] = 0 were
allowed to choose transform sizes other than 4x4. This conflicted
with tx_mode which was a frame-level decision. In this patch,
the transform search condition was modified so that the transform
choice was consistent with tx_mode of that frame.

BUG=aomedia:104

Change-Id: Ia39127b5dee129283a133cf5e4000da62d9e0f1c

These are under EXT_TX + RECT_TX experiment combo.

Results
=======

Derf Set:
--------
All Intra frames: 1.8% avg improvement (and 1.78% BD-rate improvement)
Video: 0.230% avg improvement (and 0.262% BD-rate improvement)

Objective-1-fast set
--------------------
Video: 0.52 PSNR improvement

Change-Id: I1893465929858e38419f327752dc61c19b96b997

Change-Id: I0d9850e082b8da3b182a3bbaf6569c45317c9659

Those functions includes
av1_make_inter_predictor
av1_build_inter_predictor
inter_predictor

Change-Id: Ide3b744277cf30964e8b352fc8de91365d7217a8

At the edges of the picture only a subset of partitions are legal. Add
new contexts for these borders so they don't distort the probabilities of
the interior of the image where all partitions are legal.

Only include one context for each block size of each border direction
because so few blocks fall into these contexts to begin with.

objective-1-fast:
   PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
-0.0294 | -0.0911 | -0.2382 |  -0.0481 | -0.0441 | -0.0450 |    -0.0454

derf144: -0.135
lowres: -0.124
midres: -0.076
hdres: -0.078

Change-Id: I909b98eebb7e49273cde90154c8408febe334158