Minor refactoring to force only Wiener or Sgrproj to be
used for luma.

Change-Id: I81d6f5dbf0fbc07252b9c57b43a035b90c5699af

For testing contribution from Wiener only.

Change-Id: I54fb5051dd03543d5166391a9b3b60b8d80c8228

Change-Id: Ibe5d4933f599456cb496f636de244694bc786a4c

Adds an option controlled by a macro to replace one of
the guided filters in the self-guided tool with a simple
bandpass filtered version generated with a 3x3 kernel.
By default the macro USE_HIGHPASS_IN_SGRPROJ is 0 (turned
off), that defaults us to the dual self-guided filter.
When the macro is turned on, the larger radius guided
filter is replaced by a simpler filter that is much faster.

Results (if USE_HIGHPASS_IN_SGRPROJ is on vs. off):
lowres: performance drop by +0.14% (BDRATE)
midres: performance drop by +0.27% (BDRATE)

Further experiments on this variation of guided filters is
pending.

Change-Id: I7bbcfcad7ee266cd49a8dc6d96795a454feb1a94

Performance is very similar to the lowbd path (only 4-5% slower)

Change-Id: Ifdb272c3f6c0e6f41e7046cc49497c72b5a796d9

Removes domain transform recursive filters and non-approximate
guided filter code.

Change-Id: Ib7ae7a6b6526a0908b3dc1787ab3561442da4e2d

The restoration tilesize can be now chosen as either 256, 128
or 64 at the frame header.

Change-Id: I852fc42afedc053484d657bdca522de73aaacd67

By rearranging the code in restoration.c, we can allow the
encoder to use the SSE4.1 version of the self-guided filter
while picking the loop-restoration filter.

This also helps us prepare for adding a highbitdepth SSE4.1
version of the self-guided filter.

No effect on encoder output, but gives an end-to-end speedup
of 1-2%.

Change-Id: Id17ba4a0963ddce9f70a7cae666e212e138d5f2c

Add an SSE4.1 lowbd version of the self-guided filter for
loop-restoration, and apply some optimizations to the C
version.

Approximate times per 128x128 / 256x256 tile on the machine
this was developed on:
Previous C:  620us / 2800us
Optimized C: 500us / 2200us ( 24% /  27% faster)
SSE4.1:      147us / 600us  (320% / 370% faster)

Change-Id: I23ff5a5482a191aeb06f9d1f767a9f036bb357fe

Removes redundant deblocking filtering operations and buffer copies,
during search for the restoration filters.
Also, makes the order of cdef and loop-restoration consistent.

BUG=AOMEDIA:373

Change-Id: I571e331f9dfadfd2c1494f279e50510ec212ea29

Allows DomainTxfm filters to be turned off for experimentation.
Also expands the parameter set for the Self guided filters.

Change-Id: I68fdb8e079a2464d80b3a4a990005c49baaaf0b8

Change-Id: I1bf9002c159563d0e5238b26d1515ef305d416dc

* Change Wiener filter storage to match the format expected
  by the convolve functions

Change-Id: I4d1fb08a13cfc31e69e12c1cb4b2e510c6d8ae30

Change-Id: I0d9850e082b8da3b182a3bbaf6569c45317c9659

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

Change-Id: I56e741551f74624a84250d7565520db9c5127d1b

* 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

Change-Id: Icfc4645ff97d4fd6849f149f4c5296a53c204cf4

Enables Wiener based loop restoration only for the UV
frames. The selfguided and domaintranform filters do not
work very well for UV components, hence they are disabled.
For each UV frame a single set of wiener parameters are
sent. They are applied tile-wise, but all tiles use the
same parameters.

BDRATE (Global PSNR) results:
-----------------------------
lowres: -1.266% (up from -0.666%, good improvement)
midres: -1.815% (up from -1.792%, tiny improvement)

Tiling on UV components will be explored subsequently.

Change-Id: Ib5be93121c4e88e05edf3c36c46488df3cfcd1e2

* Remove some unused variables
* Reduce need for casts by typing intermediate buffers appropriately
* Avoid copying data which is never modified; use the original data
  instead.
* Reduce number of intermediate buffers required, saving allocations
  of 576KiB in the decoder and ~1MiB in the encoder

No effect on performance

Change-Id: I55243904dd8e818fb6d43fa431903736475d23ff

Change-Id: I4c4300f3f565d8aecf65669b77aaa874bb73a3a0

Also includes some minor renaming of macros.

Change-Id: I9493cc97c6ec9c8dae8020a05a02d6f322db9a02

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

Change-Id: Ia264b8989b5f4a53c0764ed3e8258ddc212723fc

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

Change-Id: I9d1592e4f6dbfa18a475d0fc5674f6d3632f39ed

This is intended to simplify hardware and multithreaded
implementations.

Change-Id: I6aa95b67c03b794a0f3d5cf2f65c576d05f2ca7d

The main objective is to reduce computational complexity.
The domain transform filter has an effect of edge preserving smoothing
at a lower computational cost than the bilateral filter, and can be
readily paralelized.

A little drop in coding efficiency about 0.06% for lowres, 0.16% for
midres.

Change-Id: Id949406b7e5afe9b64588d130065c63a76e4f3f9

This filter is meant to replace the bilateral filter,
but is currently added in addition to the bilateral filter
for testing.

Change-Id: Ia529701e69833d47c11b3367d5bf804eb8498079

Change-Id: I82580120a154ecd7c41f4cd9bc0f8c669fca7774

BDRATE:
lowres: -1.01% (up from -0.7%)
midres: -1.90% (up from -1.5%)
hdres:  -2.11% (up from ~1.7%)

Change-Id: I1fe04ec9ef90ccc4cc990e09cd45eea82c752e0c

From code only part of nextgenv2 (and not aomedia)

Change-Id: I21f7478a59d525dff23747efe5238ded16b743d2

Streamilines the functions and data structures to make it
easy to add new restore options.

Change-Id: Ib00638a5749e6c38c2455f3e3142b1025e6e0624

Includes a major refactoring/enhancement to support
tile-adaptive switchable restoration. The framework can be
readily extended to add more restoration schemes in the
future. Also includes various cleanups and fixes.

Specifically the framework allows restoration to be conducted
on tiles such that each tile can be either left unrestored, or
use bilateral or wiener filtering.

There is a modest improvemnt in coding efficiency (0.1 - 0.2%).

Further enhancements will be added subsequently to improve coding
efficiency and complexity.

Change-Id: I5ebedb04785ce1ef6f324abe209e925c2d6cbe8a

Cherry-Picked the following commits:
0defd8f2 Changed "WebM" to "AOMedia" & "webm" to "aomedia"
54e66767 Replace "VPx" by "AVx"
5082a369 Change "Vpx" to "Avx"
7df44f17 Replace "Vp9" w/ "Av1"
967f722f Remove kVp9CodecId
828f30ce Change "Vp8" to "AOM"
030b5ffc AUTHORS regenerated
2524caee Add ref-mv experimental flag
016762be Change copyright notice to AOMedia form
81e55269 Replace vp9 w/ av1
9b94565b Add missing files
fa8ca9f2 Change "vp9" to "av1"
ec838b76  Convert "vp8" to "aom"
80edfa01 Change "VP9" to "AV1"
d1a11fb9 Change "vp8" to "aom"
7b582513 Point to WebM test data
dd1a5c8d Replace "VP8" with "AOM"
ff00fc0f Change "VPX" to "AOM"
01dee0bb Change "vp10" to "av1" in source code
cebe6f0c Convert "vpx" to "aom"
17b05679 rename vp10*.mk to av1_*.mk
fe5f8a8a rename files vp10_* to av1_*

Change-Id: I6fc3d18eb11fc171e46140c836ad5339cf6c9419

Manually cherry-picked commits:
ceef0583 libvpx->libaom part2
3d26d916 libvpx -> libaom
cfea7dd7 vp10/ -> av1/
3a8eff73 Fix a build issue for a test
bf4202ed Rename vpx to aom

Change-Id: I1b0eb5a40796e3aaf41c58984b4229a439a597dc

Frame can be split into rectangular tiles for application of separate
bilateral or Wiener filters per tile. Some variable names changed for
better readability.

Change-Id: I13ebc4d0b0baf368e524db5ce276f03ed76af9c8

Change-Id: Ie1416569e73e66518cdb2765d79a2fb3dd570489

clang-format authored Aug 11, 2016 and James Zern committed Aug 12, 2016

Change-Id: I58a42ced5b8a4338524434ff3356850b89aa705a

Fixed best error reported by loop filter selection, this value is used
during loop restoration to pick best mode. Baseline remains unchanged,
change in BDRate for loop restoration experiment:
-0.628 -> -0.625 for lowres,
-1.262 -> -1.283 for highres.

Change-Id: I69ef1608bc232b250ac46f59e31fdbed1a999dcd

Change-Id: I8dbc1002f5d6bf8f2409db8c6be4346f1df0590c

The speed feature sf->lpf_picl == LPF_PICK_MINIMAL_LPF is used
to disable loop filtering. This did not work with the loop-restoration
experiment, but now it is respected.

Note that this speed feature is only used in real-time cpu-used >= 8
settings.

Change-Id: I193723c9ac5f802ec31d8c8b4d37650796e065fd