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Zero, one, and two or more coded as one symbol (head).
Remaining tokens coded as a tail symbol.

The pareto CDF distribution is adjusted to cover tokens from
two onwards.

Change-Id: I98b33fab6b9f52690f6ad618ac55e725a97be056

- Added comments for some tables and #defines for clarity.
- Renamed some variables to ensure we use "color_index" instead of
"color" for palette color index related variables.

Change-Id: Ica95a26e0f171a41a3259c8e6b3b891b8cd10151

Set mi_size properly in findSample()

Change-Id: I26bae25bf6300a107108dc5c2b7098e7d7dfa750

This commit makes the daala-ec work in the cb4x4 mode. As compared
to --enable-experimental, --enable-experimental --enable-cb4x4
improves the coding performance by:

lowres 2.6%
midres 1.2%

Change-Id: Ifee6f011c80364492c4a547513d24eb2958b5a56

Now that we have small number of contexts (5), use hash multipliers
(instead of base 11), so that color context hash is within a small
range. This allows us to use a lookup table to get color context
instead of a for loop.

Output bitstreams are bit-exact, so no change in compression.

Change-Id: I8cd8c893048c2fc6b22ccbd56f652d11486e2ee9

This reduces the complexity in a number of ways:
- We need just 3 neighbors instead of 4.
- Possible contexts reduce from 16 to 5.
- On hardware side, getting the contexts for a whole block will be more
parallelizable.

At the same time, compression performance improves very slightly:
- Screen-content set (videos) (Google): BDRate improved by 0.32
- screenshots set (images) (AWCY): PSNR improved by 0.62:
https://arewecompressedyet.com/?job=palette_withTR2%402017-01-27T21%3A30%3A28.890Z&job=palette_noTR2%402017-01-27T21%3A41%3A34.312Z

Change-Id: Ie84ca32f05d55ad481a51c2d3abc579468597189

Cherry-pick Daala e248823a
 Getting rid of the DCT in od_compute_dist_8x8()
Replacing the DCT and frequency weighting by a filter

Change-Id: Icc3a46e5dbb561e4e3b00fa6c2290d54299c05cb

This commit fixes the encoding/decoding mismatch issue when
ext-partition and ext-partition-type are both turned on in cb4x4
mode.

BUG=aomedia:336

Change-Id: I4d6ad5863c9d3bc8e3a41c259b8b39f130164790

Adjusts the value by 1 to make sure that the center tap
if the Wiener filter does not drop below 0.

BUG=aomedia:315

Change-Id: I41c3a2eb3f36dd49072a4873a995003d18f94ece

Introduced in I745ca032f313c5041aacc98c03ae4bfc33d840de.
Stride should be plane_block_width and width should be cols,
 sanity check: cols <= plane_block_width.

Change-Id: Ic5128e94a909e498010c92fef2013da8df6d6d85

When the functions were added in
https://aomedia-review.googlesource.com/6545 they were not restricted to
x86_64 builds.

Fixes "undefined reference to
`aom_highbd_convolve8_add_src_sse2'" for --target=x86-linux-gcc

Also remove SSE2 specializations from
`aom_highbd_convolve8_add_src[_horiz/_vert]`, since those functions
don't actually have SSE2 versions (this was left in by accident
in the original patch).

Change-Id: I9f7d0c11b58b6f5a0e6a1fdaed0f92175bdeab34

For C/C++ preprocessor additions:
- add_c_preproc_definition
- add_cxx_preproc_definition
- add_preproc_definition

For required flags:
- require_c_flag(_/nomsvc)
- require_cxx_flag(_/nomsvc)
- require_flag(_/nomsvc)

Change-Id: If72a8901e39ddb95305415e33ec3368cdd28a754

Change-Id: If6efdb754558e3f237aa2d56c0eae4590fb021a4

Fixes and turns on the test.

BUG=aomedia:312

Change-Id: I6c7d1970e743ec2b025a798070761d22624e796a

Enable by running: test_libaom --gtest_filter=*TestIntrinsics*

Change-Id: If2553025820db469a0ecfe3aac1aa984324b65d3

Change-Id: Ic3a6f9d16a16f347fb36b94e6dca70d9436b984e

BUG=aomedia:314

Change-Id: I66af7f69ca0b97b9d840918a6b9ec34708a7f4e5

Change-Id: Id86b48ad34059668beb9464200dd9e03fc1b8a48

BUG=aomedia:307

Change-Id: Ia1d39916b3e856acd33f4e199321395455151fb6

Change the list of search offsets searched when ext-partition-types
is on for square block_sizes. This is because the VERTICAL_A and
HORIZONTAL_A partitions are incompatible with the default list.

BUG=AOMEDIA:141

Change-Id: I884c45c3d11039b7dcb72336a928362f926473ed

The only test here that is truly Large is ValidSizes (now
LargeValidSizes)

Change-Id: If0893aad78a666f3db0581a79d6161cc8929a996

If part of a block falls outside right and/or bottom image boundary,
then only store tokens for the part of it within the boundary.

Also, consider only the part of the block within the boundary when
calculating the number of colors in the image, deciding the base
colors for palette, RD calculation etc.

The part of color map corresponding to pixels outside the image
boundary is padded with color indices copied from same row/column.
This behavior is similar to how pixels outside the boundary are padded.

For screen_content set, this is improves compression performance by
0.038 overall. One clip, in particular, has a significant gain of 0.8.

Change-Id: I745ca032f313c5041aacc98c03ae4bfc33d840de

Creates the PVQ_SKIP_TYPE enum to encapsulate the different types of
skipping that can be signaled by PVQ (i.e. skip: AC, DC or both).

There is no impact on the bitstream. However, the decoder will now emit
an internal error if the decoded skip flag is out of range. The
block_skip variable is also renamed to ac_dc_coded as it stores the same
information.

Change-Id: Ib2aadaf99dc1736ea392ae5ed8948c3cdc12da9b

we rely on the version of visual studio (2013+) to allow c99 in that
case.

BUG=aomedia:111

Change-Id: If0fb9ad81b42e93bfb8752071abd2370d43981bb

Make sure all legal final states can both be serialized an unserialized.

Change-Id: I74d96598a2b206fbc6c82a06649347afb5f9bbd8

Fixes a mismatch issue with ext-inter+motion-var+warped-motion
due to unset num_proj_ref values.

BUG=aomedia:311

Change-Id: I042551f6c53e8cc005f2133704a03b243c98c12a

this was superseded by the addition of -std=c99

BUG=aomedia:111

Change-Id: Ib89125b6f2e259b52ae35af26e882f9b02ef2c27

On keyframe, 18% speedup, 0.02% compression loss.

Change-Id: I29085ec23dd145effbea58852a46cd7f4dea8a46

On keyframe, 22% speedup, 0.04% compression loss.

Change-Id: I70d387cc9de86c0c0c8b0037d35cff141409d59b

Minor performance changes
0.03% better on lowres
0.01% better on midres

Change-Id: I7a7168f3a2a4d17a03353841a416eff6edf1e241

On keyframe, 18% speedup, 0.07% compression loss.

Change-Id: I98323db23251c70958a314f16fd6d789579017ec

Cherry-picked from daala commit 28de40bfcd84e7df3fbd64de7b89dd7fd889bb27

Change-Id: I31af05f07514c023c5be84f7e2ae353ab7d276f0

only expose the static functions needed in the test file to avoid link
errors for e.g., av1_fht4x4_c

Change-Id: I35111d322f30bc2bfc57b32c11f691f0717cfaba

ext-partition needs a slightly bigger stack.

Change-Id: Ib727cfd5b3526b18d8c7306ddb33a490bb885834

Change-Id: I130f748c076a1642f12b95051dab19bfdac5b855

Change-Id: Ibc1803c3d149c6a53d1817798d0cab6dc5ab5927

Now that https://aomedia-review.googlesource.com/#/c/6729/
has been merged, build_intra_predictors_for_interintra() is
now redundant, so replace it by a direct call to
av1_predict_intra_block() and remove the old function.

Reset rect_interintra back to 1.

To do this, we need to make the intra predictor take a
BLOCK_SIZE instead of a TX_SIZE. This is because we need to
be able to predict 32x64 and 64x32 blocks, but there is no
TX_32X64 or TX_64X32.

No effect on output or performance.

Change-Id: I8c185a211c97a85012cc54ec293c785a693608ed

Change-Id: Ibec40c3cd8e14343b096e406ba233cf4f131e7b9

BUG=aomedia:310

Change-Id: I8e1a1c6d59e3d14ba132d2bbf4e203da26538bde

Resolve the broken coding pipeline in ext-inter experiment when
cb4x4 mode is enabled. Turn off rectangular inter-intra mode.
This needs some more work to hook up. Given that it gives fairly
limited coding performance gains, disable it for the moment.

BUG=aomedia:309

Change-Id: I9b406df6183f75697bfd4eed5125a6e9436d84b0