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Change-Id: I4a0f0a775362e6e43cd28ed29bf83c912cdc7df5

Cherry-pick Daala 85433214
 Fully order the pvq search candidates
For portable and stable sorting, break ties.
Large differences in output were observed between AWCY and an OS X
 machine because of the platform qsort implementation.

Change-Id: I294dd2e167c1e0464c7f61f32d60ab478341446e

Change-Id: Id0653f8d3a643cbeb187b38d5067f5e36340f163

Change-Id: I1f66837151a955a9fde0c1b4670ab0fc1d318111

A previous commit 8e1d0f70 changed
the bitstreams due to change of scale of transforms. While the
change is expected, md5 for "decode_to_md5_av1" test needs to be
updated to reflected the change to avoid nightly test failures.

Change-Id: I57e0318c081c7c0609fe7d5ee97543239ce162d0

Change-Id: I7320074ff7bd95d833cba8afb04fcc0730392f1e

While sorting, preserving the order of the rest of the list when moving
an element to the top of list makes hardware implementation much simpler.

The compression performance is roughly same: overall, avg performance on
screen-content set is 0.137% better than before in fact.

Bug=aom:127

Change-Id: Id1aa1e90254b44eae9133b47bca8f853f6a62c6b

Measure the accuracy of each transform in terms of per coefficient basis.
Set up a accuracy limit corresponding to current transform
implementation.

Change-Id: Ib7db9680c963427e94e728bf453b66180ce30b89

Change-Id: I7c992c9aae895aebcfb5c147cb179cf665c0ac10

Rename encode_inter_mb_segment() so that it tells readers
that the function is only used for sub8x8 case.

Change-Id: I2d86d9efaf0e1e96446d9e2dec8a8d97772489a7

In encode_inter_mb_segment(), when BLOCK_8X4 or BLOCK_4X8 is
passed, the nested loop inside it iterates always twice.
(For BLOCK_4X4, loop iterates only once because encode_inter_mb_segment()
is called for each of 4X4 block.)
Then, the k for 1st iteration is always zero, and the k for 2nd
iteration is always (idy * 2 + idx) with either idy == 1 or idx == 1
depending on the sb_type.

Using "+=" there could mislead readers expecting that
the # of iterations is more.
And probably using simple assignment would be more proper here.

Change-Id: I7a11255eca13403bc090ba4f0cd4785db9f0e541

Change-Id: Icbd238c73323d11d60ca4da755b52c83cb11b8b5

Change the od_decode_cdf_adapt() function to take an aom_reader
 struct instead of an od_ec_dec struct.
Rename od_decode_cdf_adapt() to aom_decode_cdf_adapt().

Change-Id: I0713d2f56acfea3f67f1b4087c0feee77c2e25cb

Change the laplace_decode_special() function to take an aom_reader
 struct instead of an od_ec_dec struct.
Rename laplace_decode_special() to aom_laplace_decode_special().

Change-Id: I137ae9a4df3fb0fd0b54dea09f787f70a7d287f5

Replace the passed in bit accounting string from OD_ACCOUNTING with the
 current function name as ACCT_STR in preparation for the migration to
 CONFIG_ACCOUNTING.

Change-Id: Ib9946232b37cacfd88f6ff914b99e91c3d7b650e

Slight improvement in midres and hdres sets of 0.02% and 0.0.9%
respectively.

This is also a better design anyways.

Change-Id: I15b60b8836070a2132641e5b1d8e9f68df426c08

Casting function pointers to void* is undefined or illegal (depending
on C/C++ dialect) and should be avoided.  Data and code could reside
in different memory.  In theory function pointers could be 64 bit and
data pointers could be 32 bit, so conversion to and from void* could
change the value.

Change-Id: Ibb70e35f21dc307cb236aecd001e15a8a8d7f9ea

Change-Id: I56e741551f74624a84250d7565520db9c5127d1b

Disable warped motion mode when the model parameters are out of the
range of the new interpolation algorithm.
Performance: 1.1% lowres (was 1.2%)

Change-Id: I947ce3fd07e0d574d66333c1a729e85ba0294b4a

Change-Id: I487995f51737be882d4f2a4c7bbd6b87297b4f55

Performance drop with ext_tx and rect_tx on
       BDRate
lowres -0.028
midres -0.075
hdres  -0.054

Change-Id: I50f89b9e9785d82ab05c3276a3c8b22b4dcfd408

Change-Id: Iab1217c7eb006c72e86e4261576b775b7debafd3

Change-Id: Ie308a855c9c713dc7876ea171aa812ce57663c39

This resolves an out-of-boundary memory access issue in the encoding
process.

Change-Id: I9363f5a5a012880289e3370f66507126c609a41f

Fix the computation of distortion for blocks at frame boundary.

Change-Id: Ib32b95f25e28af42abe9144a7f589030bbaab463

Change-Id: I5c2e92469d8f87f7c565acd77f12535b3f58929a

Change-Id: I6e60d9083da8a2d8f7e182e4f12704eddd170df6

Separate the aom_read_cdf() functionality from aom_read_symbol() which
 can optionally adapt the cdf when run with --enable-ec_adapt.

Change-Id: I5446d6402835dfcf68d3462a2bd8835704fe6603

Change the od_encode_cdf_adapt() function to take an aom_writer
 struct instead of an od_ec_enc struct.
Rename od_encode_cdf_adapt() to aom_encode_cdf_adapt().

Change-Id: I00de05b8b7428f67139c234160ab9aaf8900f967

Change the od_laplace_encode_special() function to take an aom_writer
 struct instead of an od_ec_enc struct.
Rename od_laplace_encode_special() to aom_laplace_encode_special().

Change-Id: Ieba63c8519d363081124a11e633b437adccfa500

Change-Id: I0e254b52d3e347a96f38922c3f00993d3e70538f

Separate the aom_write_cdf() functionality from aom_write_symbol() which
 can optionally adapt the cdf when run with --enable-ec_adapt.

Change-Id: Ibc58690eddb647d69f08d72f0f0712779aab11d1

This large function is solely used for the RDO search for
inter prediction mode. It would be helpful for readers if its name
tells that whole function is used for inter mode decision only.

Change-Id: Ida366b142b7129bf89498227d186c54341c3af5e

In this case, calculating the shear parameters fails
with a divide-by-zero error. So disable the new filter
in this case.

We also temporarily remove the asserts blocking use
of the old filter with debugging enabled.

Change-Id: I788ff51c3bc1d841eab1099881cc3b55038ae342

* Change the behaviour of search_wiener at borders to match
  the behaviour of the Wiener filter itself
* Reorder the calculation in compute_stats, saving ~5% of
  encode time at low bitrates (tested on bus_cif.y4m at 200kbps)

Change-Id: I5f649d77fd66584451aaf37697ce9c9af69524e4

* Optimize the self-guided and domaintxfmrf filters
* Save 576KiB of buffers in the encoder and decoder
* Disable self-guided filter for videos whose width or
  height is < 5, in order to help simplify the filter.

This results in an overall 30-40% improvement in decoder
speed with loop-restoration enabled (depending on source
and bitate), with no effect on video quality, *except* for
videos with width or height < 5 pixels.

Change-Id: Ide9181118ec3a63a0335338f316505b08df2d831

Change-Id: Icfc4645ff97d4fd6849f149f4c5296a53c204cf4

Change-Id: Id70b49e2a77c6837da75c684d622ddfe60f3d97e

VS compiling for 32 bit targets does not support vector types in
structs as arguments, which makes the v256 type of the intrinsics hard
to support, so optimizations for this target are disabled.

Change-Id: I675394cf1aed0cb18a48f21216470867031b30ce

Change-Id: I8eff699c037ad99e380ffe82809eb4c8cb4807af