BUG=aomedia:442

Change-Id: I98ada843016d0dd046f89bbcb2e9ae72442a101e

Warped_motion doesn't go through inter_predictor() function to
generate prediction where convolve_round is activated.
Therefore, we could avoid doing post rounding when the
warped_motion mode is on.

We use do_post_rounding to indicate whether post rounding is
needed
Change-Id: Ib17a0c0d4e6e5232e9682afa8cfdb9576f5cf4c0

* Change ref parameter to use LAST FRAME instead of
 previous frame, which makes it consistent in
 enc/dec for tempmv_signaling.

BUG=aomedia:511

Change-Id: I02f1101623b7b3b09cd4d3f2977e9503b95818ec

The prediction block level DC_PRED is stored and computed as double
instead of int.

Change-Id: I22766c102a7b62d4b5e7621438185808cc0ea8f4

CFL is disabled when skip_chroma_rd is enabled. This is done by reusing
the logic in CB4X4. To facilitate integration, the skip logic used in CfL is
moved inside the read/write functions.

Results on Subset1:
master@2017-05-08T19:54:48.196Z -> cfl_baseline@2017-05-08T20:06:55.292Z
  PSNR |  PSNR Cb |  PSNR Cr | PSNR HVS |   SSIM | MS SSIM | CIEDE 2000
0.2668 | -12.0951 | -10.4138 |   0.3095 | 0.2998 |  0.2831 |    -3.6579
https://arewecompressedyet.com/?job=master%402017-05-08T19%3A54%3A48.196Z&job=cfl_baseline%402017-05-08T20%3A06%3A55.292Z

Change-Id: I45644baa1aceef5ad4da3332fcb10f3fbaac052b

Change-Id: I30b1367b8f1417abb36f80ea634036af48afa0ae

This has been taken care of already.

Change-Id: I0198fdbcd48fc355013de79644513279c8acb0de

* Add tile dependency support when ext tile enabled.

Change-Id: I8fe40adf285e171b5b761b15590a8b1c6758b8f7

Reduce number of video frames used in tests

BUG=aomedia:506

Change-Id: I96ccdd69870d4ad9f56f7899be3c4ffe4e6e0943

For multi-thread encoding, previously the encoder buffers are
allocated at every frame, but only freed at the end of encoding,
causing memory leaks.

Change-Id: Id0e9d7fba8330e82be9cec1d42b7d4b017b8d772

Change to use 10 frames only in BorderTest instead of 40 frames, to
reduce time needed for tests.

BUG=aomedia:506

Change-Id: Ia176eb3f643d007fa4d1c5fc182f16d3e7cdf700

Change to use 15 frames only instead of 100 frames, to reduce test
time.

BUG=aomedia:506

Change-Id: Ib7cf48d2629e8d920f2c2b12820845618d6d58d7

Change to use 3 frames for screen content test from 10 frames, to
reduce test time needed.

BUG=aomedia:506

Change-Id: Ic7b44be6f3f2b65e7035bdcf24794b814b239ad1

- Function level improvement:
functions      sse2  avx2  percentage
idct16x16_256  365   226   38%
idct16x16_38   n/a   136   n/a
idct16x16_10   171   110   35%
idct16x16_1     34    26   23%

- Integrated in AV1 for default scan order.

Change-Id: Ieb1a8e730bea9c371ebc0e5f4a748640d8f5e921

This experiment extends ALT_INTRA by adding two new modes:
smooth horizontal and smooth vertical.

Improvement on *intra frames* in BDRate (PSNR):
===============================================

AWCY (high latency): -0.46%
(Also, -1.0% or more on PSNR Cb,Cr and APSNR Cb,Cr).

AWCY (low latency): -0.43%
(Also, -0.88% to -0.94% on PSNR Cb,Cr and APSNR Cb,Cr).

Google sets:
lowres: -0.454
midres: -0.484
hdres:  -0.525

Improvement on *video overall* in BDRate (PSNR):
================================================

AWCY (high latency): -0.15%

Google sets:
lowres: -0.085
midres: -0.079

Change-Id: I9f4e7c1b8ded1fe244c72838f336103ccc715d50

BUG=aomedia:518

Change-Id: Ia88b50b084c6370073ac4916e00a019963cf0254

When a block only contains 2 unique colors, there's no need to run
K-means, as 'lb' and 'ub' can directly be used as the centroids.

Two benefits:
1. Encoding will be faster for this special case, and
2. Can potentially avoid sub-optimal/duplicate centroids generation
(due to integer rounding) when 'ub' and 'lb' values are very close.

Change-Id: Ice04fc8577e3cc8c74f87d623a16ac8de3257cdd

Change-Id: Ibd7091d444cfb3095ddb938100704d3b75cf1af4

Also includes a change in the wedge primary functions providing
a slight improvement.

Change-Id: I536d3209f59624e23128708e29fa85c1e6fcd97e

Since the size used with cfl_load can either be based on the transform
block size and the prediction block size, width and height are used as
parameters instead of TX_SIZE.

This resolves a problem where cfl_compute_alpha_ind was reading
uninitialized memory.

Change-Id: I187dbdd5b2e8bd85e82bb77eb74859bee2cd3f1e

This will improve the lowres performance by 0.1%
No significant change on midres and hdres

Change-Id: I0c6e69bf48596e7e5ad49631ed9f9be73bbf3c9a

Change-Id: I48a2148854e2abd0a3cc66aef58bb6a5d77c8b59

Change-Id: Ieeb044d2b008c409faf7fa5d7253ad2d8f326ca4

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

Change-Id: Iecf11b2ca3636042ba70800dd8f6c62627760243

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

Change-Id: Ia56bdc8da422e9de9b92f357c98ad38017e8b728

This reverts commit 9395b34e, because it
did not have any effect in eliminate ubsan warnings as intended.

Change-Id: I9221385217f062a0356fe0c68643b12751048f69

Even though number of unique colors in a block may be at least
PALETTE_MIN_SIZE, sometimes the K-means can generate fewer than
PALETTE_MIN_SIZE unique centroids due to integer rounding.

This was resulting in "k - PALETTE_MIN_SIZE" being negative and using
that as an index into palette_y_size_cost array was causing a UBSan
error.

BUG=aomedia:515

Change-Id: Ia00b4bb2efebbe43d1fec7b619ebb837b1ae961c

Change-Id: I64c523a34b4d69450759433e125a79e63d928037

math.h provides these with _USE_MATH_DEFINES

BUG=aomedia:500

Change-Id: I6e05b09149a6a6ca152e67194b629e0728bc3c35

add correct type for 'c' parameter

BUG=aomedia:500

Change-Id: I4ea2334405d8d7ea436bc373dd1c812666f98067

Measure SSE for all possible alphas.
Estimate rates for alpha signalling.

Change-Id: Idf1e3c632925cd306090fc38cf5b95eff7ee5c1c
Signed-off-by: David Michael Barr <b@rr-dav.id.au>

Change-Id: I7b26893e9358378f585a892854812ed0a1888385

The small multiplier intentionally introduces a larger error, so
relax the accuracy threshold in the aom_reader_tell_frac() test.

Change-Id: Ib046a95dd3a8498a1a2ea58680796e75fd195868

Change-Id: Iad3c54cc905a7d337766c3c8ae59109327d5c5ae

Change-Id: Ib6f8b94c82fee8546d741f4472f42c342cbdd55c

BUG=aomedia:514

Change-Id: I97e20524b091169635395098efe234a7fd846bd9

'const_above_row' was same as 'above_row' and 'above_row' pointer was
never modified.

Change-Id: Ib0c2524b1afc75967cfa7d3da8e59cfc66299ff4

Change-Id: I6f0c93fd38abc85553b81a3f2d99e97ed9c803f7

Change-Id: Id490c57df5dca13c59a62b0a542779784842944c

The CDF initialization needs the iCDF macro wrapper.

BUG=aomedia:517

Change-Id: I2dd7c43ee2765f97c2fb247c31440e79587723fe