- AVX2 Copy and average functions are faster,
  Copy function: ~4%-57%
  Avg function:  ~17%-54%

Change-Id: Ib1732cd90eb353379ef50ecbb1e207860969f1c3

Change-Id: Idcf587227a7e508344d00a4d456c747b4f8d109b

The "good" speed levels are universally better than the "rt" ones,
running faster to achieve the same quality.

rt mode also turned off alt refs and lag-in-frames, but these
are still accessible separately (and the low latency test case
explicitly sets them).

Some features were used by the rt scale and not the good scale.
Two additional "good" levels, 7 and 8, were added to accomidate
these features and not reduce test coverage.

Change-Id: I3a6a78ddb664511762c197bc41f3a9909665b565

If daala_ec is disabled while bistream_debug is enabled, decodeframe.c
fails to compile due to aom_util/debug_util.h not being included
directly.

This patch just adds the missing include so that decodeframe.c will
still build with bitstream_debug enabled and daala_ec disabled.

Change-Id: I2e7eebdd17431a804be5b00239a9ae581e73f731

This fixes a mismatch in ext-tx + rect-tx introduced
by a refactor in 2d147c16.

BUG=aomedia:422

Change-Id: I5bc40b2dcd7bf53b20c1bea454aae49f2d5dfe67

If DC only idct gives zero, then we can skip the steps which
add zero signal to predicted signal.
DC only idct cases will occur more frequently at lower bit rates.

Similar changes can be done for C version of high bit depth idct functions.

Change-Id: I53af22904568f7043091710da70ca8299bf361c5

Change-Id: I152837d872ce5b234c62c7190a2350cea710d579

This significantly reduces the size of the exported
data and improves analyzer decoding time.

Change-Id: I0553c76630009754038a86b634b545db24fb3dd6

Change-Id: If7a3dc0006543c30f55f4ed2b33f28b69395bd60

(1) Add a macro DISABLE_CHROMA_U8X8_OBMC to enable(one-sided)/turn
off obmc in under 8x8 chroma blocks.
(2) When it is enabled, use the above neighbor in chroma 4x4 obmc

Change-Id: I2373e6698fd56da7f99653d77be2b7284b3e74f2

Change-Id: I8d9686c36ebf7057c4432bb5a29ade78dc21d0a7

Resolve an enc/dec mismatch issue when global motion is turned on.

BUG=aomedia:424

Change-Id: Ifad02fab4412588527ec7e8b24ab9b8c6327e5ba

When the fwd Gaussian elimination process encounters diagonal
element as zero value, the linear equation does not have unique
solution. Return the linear solver state as unsolvable in such
case. This resolves a floating point exception issue due to divided
by zero in the loop restoration filter.

BUG=aomedia:437

Change-Id: I3c67525691a3003f9f470e8a0d5b4ee187cba963

Reduces precision of matrices by 2 bits.

No material change in performance.

Change-Id: I549a27da1dcb381fb329c345ee280dbd86b45bac

Change-Id: I585999b1709303dee8d1c7bf626b5cd0ef36341c

Change-Id: Ia5e565f910c6d0c0bc6b0dc62f72a5df1346d06e

In lv_map experiment, tx_type will be decoded after
av1_read_coeffs_tx_facade.
So one should only call get_tx_type after that.

This CL fix a mismatch happens in lv_map

Change-Id: I91193f0952e82e6ee53b63c51305f0eafbbf29c9

This is for lv_map experiment

Change-Id: Ie000f7850efac32ffb46b9a4679cff2814c6246a

Change-Id: I3e9d9b3b59ee179b0fd24da2f0366ec841d2cfcf

- TX_SIZES_ALL is the correct macro to cover all txfm sizes.

BUG=aomedia:435

Change-Id: I035a8395a78982e5b19857a3ba5f9d9f657b7902

Change-Id: Id7a257fb56f2e435fadb9202f775c5d12fc1bea6

Change-Id: Iff0cb1d492c7a8c2035b9bd752b1d00260135672

This was still being used for CDFs whose size might not match the
declared array size. We replace it with an intialization macro
intended explicitly for this purpose.

Change-Id: I65d9a3c871e1d1bdd906f20ff3a264f58d8e5620

This should be the same number of operations as the non-ec_smallmul
version (though ideally we'd use the real 15-bit probability
natively).

Encoder output should not change, and all streams should remain
decodable without decoder changes.

Change-Id: I2998a77a02f566cd0c82c415395637acf49b5a97

This only changes the internal coding engine. We convert CDFs into
iCDFs at the "bool" reader <-> daala_ec boundary.

Decoder output should not change.

Change-Id: I483dfe3e5588d2038c3c7ec4cd5ba62d6699b920

This removes one subtraction from the CDF search loop (reducing the
dependency chain for reading from the CDF) at the cost of one
increment and decrement during renormalization (easily absorbed by
the reorder buffer).

There should be no change in decoded output.

Change-Id: Ia7905bb8ca7c5d4ab73f23ccc61bcd3432349aa2

This only changes the internal coding engine. We convert CDFs into
iCDFs at the "bool" writer <-> daala_ec boundary.

Encoder output should not change, and all streams should remain
decodable without decoder changes.

Change-Id: Id3ac7352926497bf6f7bc371ab9bc76e9a3569d5

Encoder output should not change, and all streams should remain
decodable without decoder changes.

Change-Id: Id1f1b0f2f02c3b46f150a93c451bf48abd0782ca

this change adds the following filter tap options:
1. add options to replace 15 tap filter with 9 or 11 tap filter
2. force chroma plane to only use maximum 7 tap filter

above options are disabled by default

Change-Id: Iab90a613210c1adaf4475976e9ed7e78ac30803b

This CL is targeted to improve the objective/subjective quality of the
"ext-refs" coding tool.

Tuned the frame rate factors as follows:

(1) BRF_UPDATE:
    Decreased from INTER_HIGH (1.5) to GF_ARF_LOW (1.25);
(2) Both LAST_BIPRED_UPDATE and BIPRED_UPDATE:
    Increased from INTER_LOW (0.80) to INTER_NORMAL (1.00)
, which is to reduce the bits allocated to the BWEDREF frame whereas
to increase the bits allocated to the bi-directionally predicted
frames.

Obtained a coding gain in overall PSNR as follows, compared against
the original ext-refs:

lowres: BDRate -0.181%
midres: BDRate -0.090%
hdres:  BDRate -0.701%

Change-Id: Id001f3b124d833da9f80eba4cdec2ca3f6ba9d82

This creates a central function which defines when a
block should be warped. It also refactors the
WARPED_MOTION code so that all calls to av1_warp_plane
happen in the same location.

No change in performance.

Change-Id: Icaf9ec7700d34523809258594bb9843bb2975f46

The greedy search method improves the BD-rate over the baseline by
more than 0.2% for lowres test set. Larger gain 0.55% is observed for hdres test set.

[2017.04.06] Cleanup to remove redundant computation. On a local linux
machine, the greedy method is now faster than the trellis method in
encoding the first 100 frames of foreman_cif. However, the BD-rate seems
to become smaller due to the recent changes to the codebase.
[2017.04.06-2] Style changes to meet the requirements.
remove "greedy-optimize-b" in configure
[2017.04.10] Move the changes under the macro USE_GREEDY_OPTIMIZE_B
[2017.04.11] Adjust rdmult to accommodate CpuSpeedTest
[2017.04.12] Set USE_GREEDY_OPTIMIZE_B to 0 at the request of debargha@.
[2017.04.13] Move greedy implementation of optimize_b into a separate
function with the same name (selected by USE_GREEDY_OPTIMIZE_B, default
is 0)

Change-Id: Ic15534f8d696d5f02e8f2e3e9f08b52e41e9efd2

Deduplicate implementations of check_range, and deduplicate the call
to aom_read_bit.

Change-Id: I63b023758248717125e4df6d1c382d4c517bae84

Change-Id: I422dfd9d7afe9f7baa04a962e19c8a92d5c12eeb

Change-Id: I052721017cddd57ff9995e8dd442e4b3436a0b48

This will make the code cleaner and lv_map experiment will be able
to reuse this function.

Change-Id: I885336117daa0090e16f1bb7a0c3e7bb54105410

Change-Id: If129748d918995efcc58169d153a0950eeec5efb

Avoid future issues by adding related sanity check on mode_lf_lut size.

Change-Id: I689a90c07ee2b79debf838304cfca0e34783e5bf

Change-Id: Iddb2103452817e9624a28794cab923f00c3e9924

This is to fix compiling issues with aom-highbitdepth.

Change-Id: I66ee73e014a028536747e55209f20be81e906267