This commit makes the encoder to properly account for all transform
block sizes when combining statistics from encoding threads.

Change-Id: I010acd3b247dc890f63756d3d1436b1fb52ea2d9

This uses a segmentation mask (which is temporarily computed arbitrarily)
to blend predictors in compound prediction. The mask will be computed
using a color segmentation in a followup patch.
Change-Id: I2d24cf27a8589211f8a70779a5be2d61746406b9

Change-Id: I18cc994f31d33f59f38f798f6629fe180026e066

Change-Id: Ie7a5de671eee19b1bc1609200968c6ecb083f569

Change-Id: I53f5a9858b4b488f670cdf89ab75638dee979df9

Change-Id: I62b662052a4b9b1de07575824410aa9b2ce2c924

Change-Id: I0005c896a243275c052a0163a5da0f9230071743

This function corrected for the fact that the old bilateral and
Wiener filters would not write to the outermost 3 pixels of the
destination. Now that the bilateral filter has been removed and
the Wiener filter has been rewritten, this is no longer necessary.

No effect on performance

Change-Id: I3f3b0a759bdb9ff1e2407affe963388e76a9c9e6

Change-Id: I4c4300f3f565d8aecf65669b77aaa874bb73a3a0

- Apply changes on tx_size: 4x8, 8x4, 8x16, 16x8.
- Turn on corresponding unit tests on SSE2.
- Partially fix aomedia:113.

Change-Id: I29d15540ab8e9e3681e9caa54e5162bcbbd7af11

This commit fixes the 2x2 d45 intra prediction. It avoids the use
of out-of-boundary position as reference. This resolves an enc/dec
mismatch issue in cb4x4 mode.

Change-Id: I93d01536a0c004190cc9fe3c724bf41364f6fdde

This resolves an enc/dec mismatch issue in the intra prediction
modes.

Change-Id: I8655621332d955e718b9341e208e837c91e2acf0

Also includes some minor renaming of macros.

Change-Id: I9493cc97c6ec9c8dae8020a05a02d6f322db9a02

Failure brought by 45dc597a

Also harmonize the high-bit-depth and regular versions
of directional intra prediction.

Change-Id: I7ed6602ccbfb53470cb7e9d8f428b17a860ca596

When PVQ is on, we reencode at the end of choose_tx_size_type_from_rd to
get the entropy contexts right, previously this was done using
txfm_rd_in_plane but this is different from the encodes done in the loop
which use txfm_yrd, the result is that rd_stats is set incorrectly at
the end of choose_tx_size_type_from_rd when PVQ is on.

Results on objective-1-fast with --limit=5:

   PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
-0.5803 | -1.0598 | -1.4565 |  -0.3377 | -0.8153 | -0.5934 |    -0.9943

See https://goo.gl/Hvv0E2

Change-Id: Iccc7b0afaff849f959a0084eb48dbb838bc3cb1a

Stop reading partition information at 4x4 block.

Change-Id: I2b33f5ad307aa3051a1b1e230b7f6953ec6cecc6

Change-Id: Ic2fbc66e9212da32930c6a8ba1a749e3a37c5b9a

This commit enables the 4x4 level block partition search. It turns
on the 4x4 level coding block unit.

Change-Id: I7251db10176fd6c4f853604d263170721252dd4f

This is the same change as a94997aa, it
has to be applied again as it was accidentally removed in the merge of
nextgenv2 (f883b42c).

Change-Id: Ic9c47766e9e7d189885ce2c774b92d1796a9a574

Includes:
Some cleanups/refactoring
Better buffer management.
Some preps for future chrominance restoration.

Change-Id: Ia264b8989b5f4a53c0764ed3e8258ddc212723fc

This patch reverts ca4782bb: Disable daala_ec when ext_tile is enabled.
Certain tests in superframe_test.cc were disabled for only ans that
 should have been disabled for both ans and daala_ec.
This was corrected in d526d0a8 and now the unit tests pass with
 --enable-daala_ec and --enable-ext_tile.

Change-Id: I76244bb4d687040dbd504475c31361933830943d

The superframe index is also mandatory with daala_ec for the same
 reason it is mandatory with ans, e.g., with both entropy coder
 backends the buffer length is not known when calling aom_reader_init(),
 see commit 15c1aa60.
This patch disables the same tests for CONFIG_DAALA_EC that are disabled
 when CONFIG_ANS is enabled with CONFIG_EXT_TILE.

BUG=aomedia:116

Change-Id: Icc89a01492296d56abfb966093a3c06f2f228650

Change-Id: I6624b12f00e3862d9c05f6c26bbfa50106212bff

This commit makes the rate-distortion optimization search of a
given block size support 4x4 level coding block unit.

Change-Id: I0149c3576af929bf2feb1c40850b53b21b3dca71

Unify the prediction mode write and read for all block sizes.

Change-Id: I32415fa4d9413978324597f7879c29963afe8118

Support 4x4 level coding block context_tree. This would make the
leaf nodes redundant. Need to remove those after cb4x4 mode is
stable.

Change-Id: Ida33eddbca384a949bb0bf46b7dabaadcab42542

Change-Id: Ia2e60e6ac1cb342b26ffa919b40c77284921b8e0

When both directions pick sharp filter, horizontal direction use
12-tap sharp filter and vertical direction uses 8-tap sharp filter.

BDRate performance drop slightly.
       BDRate
lowres -0.083%
midres -0.073%
hdres  -0.016%

Change-Id: I6dc075af98f6b4fae558827424a7dd8f38d56503

BDRate varies within +-0.04%

Change-Id: I76f440c479d411c09ef39a19b46eb8dbc5330efb

Change-Id: I93493abe3c412fc10f5bb5a2eb157c8db277f4e0

Remove the use case of bmi->as_mode in cb4x4 mode. Its function is
covered by 4x4 level mode_info.

Change-Id: I04abc1b7a0a97c12c3b6fddc1f16f7045512772e

Take out the functions set for sub8x8 block sizes.

Change-Id: I15836df44051f2c8679c317d52eab9ef55fb5b17

No need of special handle on sub8x8 block sizes.

Change-Id: I8487cd68eda0882fe50550af3998dc941ec13b21

This commit moves a number of large buffers from stack to heap to fix
crashes due to stack overflow.

Change-Id: I9d1592e4f6dbfa18a475d0fc5674f6d3632f39ed

The aom_write_bit() was not calling buf_uabs_write_bit() while the
 aom_read_bit() function was calling uabs_read_bit().

Change-Id: If98975341472988e8d809aa80a647d7a2531e21e

Calling aom_write_bit() and aom_read_bit() with --enable-daala_ec
 would call aom_write() and aom_read() with probability 128 which
 would ultimately call od_ec_enc_bits() and od_ec_dec_bits().
This refactors that code and makes the call explicit.

objective-1-fast:
master@2016-12-14T18:38:33Z -> daala_ec_bits@2016-12-14T18:36:22Z

    PSNR | PSNR Cb | PSNR Cr | PSNR HVS |   SSIM | MS SSIM | CIEDE 2000
  0.0000 |  0.0000 |  0.0000 |   0.0000 | 0.0000 |  0.0000 |     0.0000

Change-Id: Ib69e98734fadcdc8b89936b7b6fbd0574afc7e34

The RD_DEBUG experiment computes stats in the _record() functions which
 then proxy calls through to the actual bit writer.
The aom_write_bit_record() should proxy calls through to aom_write_bit()
 instead of aom_write() with probability 128.

Change-Id: I7617fad0f2c25dc05cf111c660a90068c3f4c513

Turned off, by default.

TODO: The distortion function of Daala should be added
to complete the activity masking working.

Note that PVQ QM matrix (i.e. scaler for each band of
transform block) is calculated in decoder side as exactly same
way in encoder. In Daala, this matrix is written to bitstream
and decoder does not generate it.

Activity masking can be turned on by setting below flag as 1:

Change-Id: I44bfb905cb4e0cad6aa830a4c355cd760a993ffe

Unify the block decoding process for all coding block sizes.

Change-Id: I7bfb482e9b5266f144e280b3ed713927a5ddc572

Streamline the motion vector and transform block size decoding
process for all coding block sizes.

Change-Id: I86d5686c4cb0e6ff2dd5f5e82d390fe3de25c240