The processing units support the rectangular transform block size.
Update the assertion conditions accordingly.

Change-Id: Iebd46dbbb04feaf161fb02f203fa2cde50b2b700

Adds 64x64 default scan orders
Adds 64x64 coefficient entropy models (just copy the 32x32 ones)
Entropy context updates for 64x64 transform
Various misc. changes to support 64x64 transforms

Change-Id: I2c0bc4ba540886dd196e87a78b205407ad3e866b

Adds a feature to recode if global motion is used for a reference but
has very few blocks in the frame actually using it.

lowres improves to -0.512% on average.

Change-Id: I61a36770e1b7103b9a27706909443c3f14ee4e42

BUG=aomedia:79

Merge of nextgenv2 caused av1_optimize_b not to take account
of different inverse quantization when quant matrices are on.

Change-Id: I1b8da2e110ce201183be777663222e3d73c9f17b

Change-Id: Ie57676814833824b1f3612b60ed9b0485c7ffd52

This commit supports the recursive transform block partition to
start with both square and rectangular transform block sizes.

Change-Id: Idaf29d50cb1f4876b43e5ba82c2609708c6b1926

Since non PVQ path in av1_encode_block_intra() was refactored
in nextgenv2 so that both inter and intra block txfm_quant,
i.e. av1_encode_block() and av1_encode_block_intra(), are done
similar way, such as both call av1_xform_quant().
This is also nice for PVQ, since it can reuse pvq enc helper call
in av1_xform_quant() for intra block mode.

Change-Id: I45aaf5b899552bf947d777cdb2d92e665d4f217e

For these files:
av1/common/common_data.h
av1/encoder/encodemb.c
av1/encoder/quantize.c
av1/encoder/rdopt.c

Change-Id: I379e861d55c2875d0366df24f986b29796a70087

Also includes some refactoring and cleanups.

Change-Id: I2c2528c434a1e9e9b898251fa69489d884463929

Change-Id: I58232696f29e2570aa5b5e4b020b4dca59be1f5c

Remove redundant #if statements there.

Change-Id: If6e6000c76899b0c3072e741a22bc3efa7d33739

Since PVQ's max block size equals to the max transform size,
daala's definition of OD_BSIZE_MAX was changed from 5 down to 4 to
use AV1's max trasform size 32x32. However, dering also uses
OD_BSIZE_MAX and assumes its value is 5, which caused dering
not working.

Change-Id: I9d82bb24adc7d57552a8e0a8a7e798e77d96fd4b

Change-Id: I6cdb7e80072359fc2c485424e2130e62a796cf25

Since PVQ's max block size equals to the max transform size,
daala's definition of OD_BSIZE_MAX was changed from 5 down to 4 to
use AV1's max trasform size 32x32. However, dering also uses
OD_BSIZE_MAX and assumes its value is 5, which caused dering
not working.

Change-Id: I9d82bb24adc7d57552a8e0a8a7e798e77d96fd4b

The initialization of transform parameters was missing, that led to a
crash in encoder.

Change-Id: I9e35830d5f24e771c845f0d8881671d6b7228c5e

Change-Id: I17d05bbf75a201fd010fc17e2d9bd0db8ef36d41

This commit resolves some compiling issues due to merge.

Change-Id: I0eef8aa36c404e185e0b0004948a49307c360d3e

PVQ replaces the scalar quantizer and coefficient coding with a new
design originally developed in Daala. It currently depends on the
Daala entropy coder although it could be adapted to work with another
entropy coder if needed:
./configure --enable-experimental --enable-daala_ec --enable-pvq

The version of PVQ in this commit is adapted from the following
revision of Daala:
https://github.com/xiph/daala/commit/fb51c1ade6a31b668a0157d89de8f0a4493162a8

More information about PVQ:
- https://people.xiph.org/~jm/daala/pvq_demo/
- https://jmvalin.ca/papers/spie_pvq.pdf

The following files are copied as-is from Daala with minimal
adaptations, therefore we disable clang-format on those files
to make it easier to synchronize the AV1 and Daala codebases in the future:
 av1/common/generic_code.c
 av1/common/generic_code.h
 av1/common/laplace_tables.c
 av1/common/partition.c
 av1/common/partition.h
 av1/common/pvq.c
 av1/common/pvq.h
 av1/common/state.c
 av1/common/state.h
 av1/common/zigzag.h
 av1/common/zigzag16.c
 av1/common/zigzag32.c
 av1/common/zigzag4.c
 av1/common/zigzag64.c
 av1/common/zigzag8.c
 av1/decoder/decint.h
 av1/decoder/generic_decoder.c
 av1/decoder/laplace_decoder.c
 av1/decoder/pvq_decoder.c
 av1/decoder/pvq_decoder.h
 av1/encoder/daala_compat_enc.c
 av1/encoder/encint.h
 av1/encoder/generic_encoder.c
 av1/encoder/laplace_encoder.c
 av1/encoder/pvq_encoder.c
 av1/encoder/pvq_encoder.h

Known issues:
- Lossless mode is not supported, '--lossless=1' will give the same result as
'--end-usage=q --cq-level=1'.
- High bit depth is not supported by PVQ.

Change-Id: I1ae0d6517b87f4c1ccea944b2e12dc906979f25e

PVQ replaces the scalar quantizer and coefficient coding with a new
design originally developed in Daala. It currently depends on the
Daala entropy coder although it could be adapted to work with another
entropy coder if needed:
./configure --enable-experimental --enable-daala_ec --enable-pvq

The version of PVQ in this commit is adapted from the following
revision of Daala:
https://github.com/xiph/daala/commit/fb51c1ade6a31b668a0157d89de8f0a4493162a8

More information about PVQ:
- https://people.xiph.org/~jm/daala/pvq_demo/
- https://jmvalin.ca/papers/spie_pvq.pdf

The following files are copied as-is from Daala with minimal
adaptations, therefore we disable clang-format on those files
to make it easier to synchronize the AV1 and Daala codebases in the future:
 av1/common/generic_code.c
 av1/common/generic_code.h
 av1/common/laplace_tables.c
 av1/common/partition.c
 av1/common/partition.h
 av1/common/pvq.c
 av1/common/pvq.h
 av1/common/state.c
 av1/common/state.h
 av1/common/zigzag.h
 av1/common/zigzag16.c
 av1/common/zigzag32.c
 av1/common/zigzag4.c
 av1/common/zigzag64.c
 av1/common/zigzag8.c
 av1/decoder/decint.h
 av1/decoder/generic_decoder.c
 av1/decoder/laplace_decoder.c
 av1/decoder/pvq_decoder.c
 av1/decoder/pvq_decoder.h
 av1/encoder/daala_compat_enc.c
 av1/encoder/encint.h
 av1/encoder/generic_encoder.c
 av1/encoder/laplace_encoder.c
 av1/encoder/pvq_encoder.c
 av1/encoder/pvq_encoder.h

Known issues:
- Lossless mode is not supported, '--lossless=1' will give the same result as
'--end-usage=q --cq-level=1'.
- High bit depth is not supported by PVQ.

Change-Id: I1ae0d6517b87f4c1ccea944b2e12dc906979f25e

This commit replaces the offset based block index calculation with
incremental based one. It does not change the coding statistics.

Change-Id: I3789294eb45416bd0823e773ec30f05ed41ba0dc

This commit makes the encoding process of the recursive transform
block partition support both rectangular and square transform block
sizes as the starting point. If the coding block size is rectangular,
it would allow the transform block size to start from the largest
rectangular transform size, and recursive parse to the selected
coding sizes.

Change-Id: I576628b9166565bada6a918f0a1e67849dfef4cd

Factor common codes that show up in multiple places.

Change-Id: I0a72213a151f74bdad926d59f86f0a28d00968fc

Change-Id: I20040cdb5d9fdbf6c50082e5e17b4cfbd1926b13

Change-Id: I56110d1fc94b335668e6b991442e9083bbaea8ee

Use direct table access to fetch the block size and transform size
in pixels.

Change-Id: Ia0093d5aed912be24996a06b0567bb2d873ec068

Simplify the input arguments. Make direct use of the block size
in the unit of pixels.

Change-Id: Ifec9d90b4b4fa9605f93b4f93b8242f76f898b5f

Previously, we assumed that av1_init_plane_quantizers is always called with
segment_id == xd->mi[0]->mbmi.segment_id (and use the latter to derive the value
of 'qindex' to use in the quantizer). But this is no longer true when supertx
is enabled. This patch instead remembers the value of 'qindex' derived from
the latest call to av1_init_plane_quantizers and uses that directly.

Change-Id: Ifa1c5bf74cad29942ff79b88ca92c231bc07f336

This CL will facilitate adapt_scan experiment.
In adapt_scan experiment, dynamic scan order will be stored in
AV1_COMMON

Change-Id: I4763ea931b5e1af54d4f173971befeb01a4db335

Change-Id: I1a462675c06c4b2a5f8b4b347f23fec67feccdd0

- Change struct name to all caps SCAN_ORDER to be locally consistent.
- Rename struct pointers to 'scan_order' instead of hard to read short
  names 'so' and 'sc'.

Cherry-picked from aomedia/master: 30abc082

Change-Id: Ib9f0eefe28fa97d23d642b77d7dc8e5f8613177d

Refactor to streamline the number of profiles needed, in
preparation for the next steps.

NO change in performance.

Change-Id: I753b89299897857f3c250c316b4cdc4fedcb90e8

Removed  av1_xform_quant_dc().

Change-Id: I2be2e95276001a209c107e15f5b57038eca911d9

Also adds hooks to choose different profiles for UV and intra.

Results
lowres: -0.15%
midres: -0.24%

Change-Id: I4af8bc3e9b82b6f8a061dce9f52c89afa6239ae1

This is a port of
https://chromium.googlesource.com/webm/libvpx/+/92922be83c0b4b98d50f24cc3a1e7cc0a1b5741a
from nextgenv2

Change-Id: Ie62170f7305a1588a2d170e36297618a549f1787

This CL doesn't change coding behavior. It is to facilitate the
following implementation of adaptive scan order

Change-Id: I229963cb5185812a2da43f5c8a6506b296452a6a

Those functions include optimize_b, av1_encode_block_intra,
av1_xform_quant and av1_xform_quant_fp

This CL doesn't change any coding behavior. It is to facilitate the
following implementation of adaptive scan order experiment.

Change-Id: I0836e558b94e196a02c830a856be305afe20472b

clang-format authored Sep 17, 2016 and James Zern committed Sep 17, 2016

Change-Id: I863fc85c7dc1b4f4e5740ac086fe1a852c62d26e

clang-format authored Sep 07, 2016 and James Zern committed Sep 15, 2016

Change-Id: If22018f8911d9d7ee99c2127bdfcc56e42b0e2d7

Bitstream syntax:
For a rectangular inter block, 'rect_tx' flag is sent to indicate if
the biggest rect tx is used. If no, continue to decode regular
recursive tx partition.

Change-Id: I127e35cc619b65acb5e9a0717f399cdcdb73fbf0

Uses an array to map block sizes, y tx sizes, and subsampling
factors to various transform sizes for UV.

Results improve by 0.1-0.2%

Change-Id: Icb58fd96bc7c01a72cbf1332fe2be4d55a0feedc