Change-Id: Id967afa4537461c8cff7e114bea68d2557f9358a

Function speedup (i7-6700)
Predictor  ssse3 v. C
4x4        ~2.1x
4x8        ~2.4x
8x4        ~4.1x
8x8        ~5.4x
8x16       ~6.1x
16x8       ~5.9x
16x16      ~6.4x
16x32      ~6.7x
32x16      ~7.4x
32x32      ~8.0x

Change-Id: I52b8ebf8193e76f4ea1137cbad5ad7fa109d86d8

This should relief the concern of latency incurred by generating
scan order

The performance on lowres and midres remains neutral

Change-Id: If155f055540126ee834f5be1ab4b23013090ee89

CfL now consistently uses clip_pixel. This change does not alter the
bitsteam.

Change-Id: Ifb6631e786eb1a9cf704c039ed9e6bfa45894143

This change does not have any impact on the bitstream.

Change-Id: Ib7cf344eb1e682cdc2c5abdc0621d65e70689ab4

This change does not impact the bitstream. It is intended to simplify
High bit depth support in subsequent commits.

Change-Id: If22822dbb3329fc0b4a5e343772d63761d46d3f1

replace clamp64() with clamp32u() where applicable

Change-Id: I3fc97d576b3235eeda5d26a6a9692b5e51e016f3

Change-Id: I3aa0348c4f5337998c394f6489f0fffe8eddaf47

Tom Finegan authored Sep 29, 2017 and James Zern committed Sep 29, 2017

- Fix a typo.
- Add the mingw toolchain files.

Change-Id: I3a3b8157457500757059a27dcc10c63a452760f7

Change-Id: Ic1893cb9e6535e828035d11f90e8d1426d808269

Coefficient prob model was removed earlier in
https://aomedia-review.googlesource.com/c/aom/+/17062, so these were
unused and updating them was a wasted effort.

Change-Id: Ibd5fd975134de8eb3d363c500cb0f07c4658efd1

This table was removed in this patch:
https://aomedia-review.googlesource.com/c/aom/+/17062/12/av1/common/entropy.c#b1411,
so no need to optimize it anymore.

Change-Id: Ib0e95de87b7d6002af9fe0adcd11952ba83c0a42

Change-Id: Ia87267da613567af2899aadef87a9815cf49bcf5

Change-Id: Ieb28f40d85e4db4af33648c32c406dd2931ceb89

Change-Id: I7dcce8c84d1a16b8b894d4292d77ae368dc44b6a

Change-Id: I52f204000f5fdaf1c6fff63949d72e858ceea462

Remove code that is dead since 65c00ae1.

Change-Id: Id74b96fbfbd70ebb293650601a36b9ea3b495055

Change-Id: I8a9f634bf9a5776c752cc72a18e0f0eec4d1d58f

For prediction block width equal to 32, avx2 can further speedup
the prediction function (i7-6700):

32x32     avx2 v. sse2
DC        ~1.4x
top       ~1.5x
left      ~1.4x
128       ~1.5x
v         ~1.6x
h         ~1.2x

32x16     avx2 v. sse2
DC        ~2.2x
top       ~1.7x
left      ~1.6x
128       ~1.8x
v         ~1.9x

Note: 32x16 H_PRED on avx2 does not run faster enough than sse2 yet.

Change-Id: I145ed504d1b3ea9df283b94927be66a2c6f81225

Also, do not increment the offset for cases that don't use quantization
matrices.

This prevents the offset from going beyond the array size.

BUG=aomedia:823

Change-Id: I4ca7179b4b87020e53fffa804e62dd87f521af05

Allows saving bits when reference buffer is not to be used in
cases where error resilience is unimportant.

Change-Id: I2ef002a7cce96a158e1e58c2b00f0a6846049fff

1. Configure with --enable-experimental --enable-ext-tile and run "make"
to build.
2. Run "make test" to download lightfield test data: vase10x10.yuv.
3. Run lightfield encoder to encode whole lightfield:
  examples/lightfield_encoder 1024 1024 vase10x10.yuv vase10x10.webm 10 10 5
4. Run lightfield decoder to decode a single tile:
  examples/lightfield_decoder vase10x10.webm vase_tile.yuv 10 10 3 4 5 10 5

Note: Enabled use of AOME_USE_REFERENCE(previously deprecated) for this
example.

Change-Id: I657ab6e99ba1e2d1bf99ec25a3c4686fc80bc9bb

Change-Id: Ie29d5fa261a9c7f790f170493ed0c9d59d1482e2

Experiment LOOPFILTER_LVL has 4 deblocking filter levels for:
y plane horizontal, y plane vertical, u plane, and v plane.

The patch supports segment updates for each of the four filter levels.

Change-Id: I494e8d9ab67e37c5f6234b8d9db8e3e3abf70d52

With ext-partition and tx64x64 enabled, the encoder could choose
TX_64X64 to encode the transform for a subsampled plane of a
BLOCK_128X128 block. This broke an assumption in the nested loop in
write_tokens_b and also caused bug 827 (with a rather cryptic
failure).

This patch changes get_vartx_max_txsize to ensure that the encoder and
decoder don't think they can use TX_64X64 in this situation. It also
adds a couple of assertions to the loop mentioned above so that if
something comes unstuck it'll be much more obvious what went wrong.

BUG=aomedia:827

Change-Id: Ie093f2f20f6242949d68e950c8f95b100867ee17

1. seg->temporal_update flag is only read when seg->update_map flag is
set to 1 in the bit stream. in case update_map flag is different from frame
to frame, the temporal_update flag will not be reset to 0 when
update_map flag changed from 1 to 0. i.e, the previous temporal_update
flag will be used in the later process. in the read_inter_segment_id
function, temporal_update flag is used to read the segment id. it will
cause bit stream parsing error.

Change-Id: I663975bc84bbed7409d4f5dd1c1005480b2fbcf8

Change-Id: Ief98301e44a63faacd5f8725f89ef4e0c596a591

Change-Id: I15bd90245adc85d17ef8429b9c5f3e41e26b0904

Change-Id: I164add43e9d75af82312b464a176cdf0045ef9e1

Change-Id: I18de826d8b8bdec6f57d108906ee5df959243f90

Change-Id: I25030297e0333f326d39f6c5b64cb2e4f3906852

And reduce scope of 'get_max_bit',
which is only used by the test code.

Change-Id: I9af7be426f7bec6958419ca02957db87e7963f50

Although they are called "sync codes", nothing is synchronized
using them.

Change-Id: I2dbd67daf9f4822438323212bb96cac489c38c5d

Observe 0.1% gain on lowres wo optimize_b before rebase

Change-Id: I0cb5b5e4be2563093efb2f6dfbefdce9b554e910

AV1 encoder's logic for handling current_delta_lf_from_base value has
a hole, which could cause enc/dec mismatch due to deblocking filter
level mismatch.

On the encoder side, when delta_lf is used. current_delta_lf_from_base
value is only written into the bit stream when the following condition
is true:

((bsize != BLOCK_LARGEST || skip == 0) && super_block_upper_left)

i.e., it is only written into the bit stream when current mi is the top
left corner of a super block, and it is not skipped or block size is not
64x64. this is applied to both INTRA and INTER blocks in write_mbmi_b().

And the following code is used to handle the case when the above condition
is not true.

if (!dry_run) {
    mbmi = &xd->mi[0]->mbmi;
    if (bsize == BLOCK_64X64 && mbmi->skip == 1 && is_inter_block(mbmi) &&
        cpi->common.delta_lf_present_flag) {
      mbmi->current_delta_lf_from_base = xd->prev_delta_lf_from_base;
    }

The idea is that if the above condition is not true, then the
current_delta_lf_from_base should be reset to the previous delta lf,
which is prev_delta_lf_frame_base.

However, there is a hole in this logic. For INTRA 64x64 blocks, even it
is skipped, the current_delta_lf_frame_base is not reset back to the
previous delta_lf. So, in this case, decoder side won't receive any new
delta_lf from bit stream, so it will use previous delta_lf. encoder side
will use the new delta_lf value. this mismatch will cause final loop
filter level calculation inconsistent in the deblocking stage and thus
cause encoder and decoder mismatch.

BUG=aomedia:826

Change-Id: I90c1dcca5da106e4f3e0bcba1ed539c1cd99c370

This experiment offset the filter tile grid 8 pixels upwards.
Deblocked pixels (rather than CDEFed pixels) are used for the
2 lines above and below the filter processing unit. The 8 pixel
offset is the offset produced by deblock/cdef. This way the
loop_restoration does not need additional line buffers in a
single pass hardware implementation.

Change-Id: I89e0831dc28413a5d3e02d7a426ce2885ab629d7

They're unused, disabled in the prototype setup, but still built and
complicating the already convoluted ifdef mess in TX experiment
configuration.

Don't leave dead code in the sourcebase.  That's what SCM is for.

Change-Id: Idb2adf597ac064c7b5027df8af1cf65054984aa4

Function speedup sse2 v. C
Predictor  V_PRED  H_PRED
4x8        ~1.7x   ~1.8x
8x4        ~1.8x   ~2.2x
8x16       ~1.5x   ~1.4x
16x8       ~1.9x   ~1.3x
16x32      ~1.6x   ~1.4x
32x16      ~2.0x   ~1.9x

This patch disables speed tests to save Jenkins build
time. Developer can manually enable them by using,
--gtest_also_run_disabled_test flag in test command line.

Change-Id: I81eaee5e8afc55275c7507c99774f78cc9e49f9a

Change-Id: I6d75d3955bd8dd2218fb07b36c10361e032eb66e

$GIT_EXECUTABLE was being passed as the
value of CMAKE_INSTALL_PREFIX to pkg_config.cmake. Pass
$CMAKE_INSTALL_PREFIX as intended.

BUG=aomedia:814

Change-Id: I86126f472447eaa6a2196dca3a8c68fb4de9415a