GitLab

Change-Id: Ib1088c3fc80952074e098385fe5eb81742e7dc59

enums for BLOCK_SIZE, TX_SIZE and PREDICTION_MODE.

Note: These were converted to #defines earlier to save on memory:
https://chromium-review.googlesource.com/#/c/269854/

But we, instead, use attribute 'packed' (see here:
https://gcc.gnu.org/onlinedocs/gcc/Common-Type-Attributes.html#Common-Type-Attributes)
to ensure that these enums use the smallest possible integer type,
and so use smallest memory when used in structs/arrays etc.

Change-Id: If1fc136686b28847109c9f3a06f8728165e7e475

Change-Id: If22018f8911d9d7ee99c2127bdfcc56e42b0e2d7

this matches style guidelines and stabilizes successive runs of
clang-format across the tree. remaining types should be address in
successive commits.

Change-Id: I6ad3f69cf0a22cb9a9b895b272195f891f71170f

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

Change-Id: I2b2b70e756b7eb9611b7b33b7d5f19b3b30e0a50

Remove some macros that are no longer necessary for experimentation.

Change-Id: I959bf441c8333607df4aa1ee18841f189ade8112

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

Change-Id: I0cc3523a8992f889f8dd203449ceb55f2a422324

For rectangular blocks between 8x8 and 32x32, we can now code the
transform size as one bigger than the largest square that fits in
the block (eg, for 16x8, we can code a transform size of 16x16
rather than the previous maximum of 8x8), when this oversized
transform is coded in the bitstream, the codec will use the full
size rectangular transform for that block (eg 16x8 transform in
the above example).

Also fixes a scaling bug in 16x8/8x16 transforms.

Change-Id: I62ce75f1b01c46fe2fbc727ce4abef695f4fcd43

Change-Id: I02f44713b99284092ecfc50ce7ab268e91d2c6f8

Mannually cherry-picked:
15791332 Use OD_DIVU for small divisions in temporal_filter.
03122298 Replace divides by small values with multiplies.
9c48eec7 Removing divisions from od_dir_find8()
0950ed82 Merge "Port active map / cyclic refresh fixes to vp10."
efefdad7 Port active map / cyclic refresh fixes to vp10.
1eaf748c Port switch to 9-bit rate cost to aom.
0b1606e7 Only build deringing code when --enable-dering.
e2511e15 Deringing cleanup: don't hardcode the number of levels
8fe5c5d6 Rename dering_in to od_dering_in to sync with Daala
4eb1380d Makes second filters for 45-degree directions horizontal
7f4c3f58 Removes the superblock variance contribution to the threshold
3dc56f93 Simplifying arithmetic by using multiply+shift
cf2aaba9 Return 0 explicitly for OD_ILOG(0).
49ca22aa Use the Daala implementation of OD_ILOG().
85187243 Fix compiler warning in od_dering.c.
485d6a69 Prevent multiple inclusion of odintrin.h.
51b7a998 Adds the Daala deringing filter as experimental

Note that a few of the changes were already in libvpx codebse.

Change-Id: I1c32ee7694e5ad22c98b06ff97737cd792cd88ae

Manually cherry-picked following commits from AOMedia git repository:
bb2727c2 Sort includess for "clpf.h"
c297fd00 Add quantisation matrix range parameters.
0527894f Add encoder option and signaling for quant matrix control.
4106232b Turn off trellis coding for quantization matrices.
4017fca3 Modify tests to allow quantization matrices.
1c122c24 Add quant and dequant functions for new quant matrices.
95a89994 Enable CLPF
f72782bb Fix a build issue
73bae509 Add quantisation matrices and selection functions
33208d20 Added support for constrained low pass filter (CLPF)

Change-Id: I60fc1ee1ac40e6b9d1d00affd97547ee5d5dd6be

Change-Id: I01d8241eba3ccaf4d06c00a51df2d17c126f6f9d

Reduce its size form 270x2 to 90.

Change-Id: Icaacc4258e43cdc19c6f06598fee17c3dd06d7e9

Added a new expt rect-tx to be used in conjunction with ext-tx.
[rect-tx is a temporary config flag and will eventually be
merged into ext-tx once it works correctly with all other
experiments].

Added 4x8 and 8x4 tranforms for use initially with rectangular
sub8x8 y blocks as part of this experiment.

There is about a -0.2% BDRATE improvement on lowres, others pending.

When var-tx is on rectangular transforms are currently not used.
That will be enabled in a subsequent patch.

Change-Id: Iaf3f88ede2740ffe6a0ffb1ef5fc01a16cd0283a

Currently nothing is implemented to compute GM parameters, this
just adds the capability to send them in the bitstream if they
were computed. Still need to implement the reconstruction
based on the parameters in reconinter.

Change-Id: I72aea3c6a9de9f5a40f96da76c82b54a52781fe2

These are needed for the warping function in the global motion
experiment.

Change-Id: Iaab176d0c0b90f6b938e2bac48b24c07e87e3cd9

Reject ext-inter compound modes before doing full rate distortion
evaluation, if the corresponding single reference modes had a lower
modelled RD.

ext-inter speedup up to TBD.

Coding performance: TBD

Change-Id: I358bfb879c5ebe5e7afbf6f540cc784f8de14857

Also extends quant profiles to include quality range.

Change-Id: Ia96e45b6425e1d42ca61fc401f63d4fd7214e448

Add the ability to pick between 3 quantization profiles.
The profile is chosen based on the entropy context at the
block level.

Change-Id: Iaea0485798441b7d635962c2563f3a477f582dac

Move the reference frame type definitions to common/enums.h file.
Replace hard coded numbers.
Combine repeated definitions.

Change-Id: I288e079a03e448014cc181bcdb3f88ee8ec8d139

This commit refactors the reference frame structure used in the
dynamic motion vector referencing system, and makes it support
the bi-directional reference frames. This resolves unit test
failure (enc/dec mismatch) when both are turned on.

The compression performance (ref-mv + ext-refs) is improved by
0.2% for lowres.

Change-Id: I233624d8fccc1f69e82295f94de984ff056365dc

This patch removed the experiment of BIDIR_PRED and merged the feature
into the experiment of EXT_REFS:

(1) Each frame now has up to 6 reference frames, namely
    LAST_FRAME, LAST2_FRAME, LAST3_FRAME, GOLDEN_FRAME, (forward) and
    BWDREF_FRAME, ALTREF_FRAME (backward);
    LAST4_FRAME has been removed;
(2) First pass still keeps the 8 updates:
    KF_UPDATE, LF_UPDATE, GF_UPDATE, ARF_UPDATE, OVERLAY_UPDATE, and
    BRF_UPDATE, LAST_BIPRED_UPDATE, BI_PRED_UPDATE;
(3) show_existing_frame==1 is supported in the experiment of EXT_REFS;
(4) New encoding modes are added for both single-ref and compound cases,
    through the use of the 2 extra forward references (LAST2 & LAST3)
    and the 1 extra backward reference (BWDREF).

RD performance wise, using Overall PSNR: Avg/BDRate
        Bipred only      Prev EXT_REFS    Current EXT_REFS with bipred
lowres: -3.474/-3.324    -1.748/-1.586    -4.613/-4.387
derflr: -2.097/-1.353    -1.439/-1.215    -3.120/-2.252
midres: -2.129/-1.901    -1.345/-1.185    -2.898/-2.636

If in vp10/encoder/firstpass.h, change BFG_INTERVAL from 2 to 3, i.e. to
use 2 bi-predictive frames than 1, a further improvement may be
obtained:
                 Current EXT_REFS with bipred
        1 bi-predictive frame    2 bi-predictive frames
lowres: -4.613/-4.387            -4.675/-4.465
derflr: -3.120/-2.252            -3.333/-2.516
midres: -2.898/-2.636            -3.406/-3.095

Change-Id: Ib06fe9ea0a5cfd7418a1d79b978ee9d80bf191cb

Segment level quantizer settings for supertx coded blocks are now
selected based on the minimum of all segment IDs within a supertx
coded block.

This also fixes the 3 adaptive quantization modes with supertx.

Change-Id: Ib5db099539d4f82f240e1d745d6e5264f8b34cde

Change-Id: I15d54a3ae48b2b33082668116792c6595bdb3ddb

This experiment implements non-uniform quantization where
the width of the bins increases gradually to more closely
match a laplacian distribution of the coeficcients.

Performance Gain:
derflr: 0.15%
hevcmr: 0.675%

Change-Id: I25234244e3bcd94b87c1f77cf682190b61c8ef94

Major parts have been implemented as follows:
(1) Added BRF_UPDATE, LASTNRF_UPDATE, and NRF_UPDATE in firstpass.c;
(2) Added the handling for the scenario of
"cpi->common.show_existing_frame == 1" at the encoder;
(3) Added a new reference frame of BWDREF_FRAME;
(4) Have bwd-ref work with upsampled references.

Note that when the experiment of "ext_refs" turned on, this experiment
will be turned off automatically currently.

RD performance in Overall PSNR has been improved, compared against the
VP10 baseline:

lowres: Avg -3.312; BDRate -3.154
derflr: Avg -1.927; BDRate -1.176
midres: Avg -2.149; BDRate -2.001
hdres : Avg -0.567; BDRate -0.588

Change-Id: I4c06ff51cc20194bffbd4d2346e57ba3dcf6b62c

Increases number of wedges for smaller block and removes
wedge coding mode for blocks larger than 32x32.

Also adds various other enhancements for subsequent experimentation,
including adding provision for multiple smoothing functions
(though one is used currently), adds a speed feature that decides
the sign for interinter wedges using a fast mechanism, and refactors
wedge representations.

lowres: -2.651% BDRATE

Most of the gain is due to increase in codebook size for 8x8 - 16x16.

Change-Id: I50669f558c8d0d45e5a6f70aca4385a185b58b5b

Make the bit-stream level support per direction filter type coding
for motion compensated reference.

Change-Id: I61a2360b301075f6734cfd9711b7ae68f214174d

The word 'pick' is usually used in functions that make decisions where
the bitstream allows multiple legal choices, and not to limit the
bitstream format itself.

Change-Id: Ia60709c29e004475e1aa8861aefded27ebaf4712

This is the set of 1D transforms that are used in each
ext_tx_used_inter set. The 1D sets will help speed up
the ext tx pruning functions.

Change-Id: Ib46ad26be2df60b3bfcd2f22d96e7f38ae286df5

lowres: -1.72%

Change-Id: I4c883097caac72fab8e01945454579891617145e

Change-Id: I2ec4f562e28a4673477e20186f9d6167b24b76b8

No performance changes

Change-Id: Ia489041253423ddf8ebc7e2d41fbfb9e138109f0

Remove the restriction that the neighboring predictor cannot be
used in obmc prediction if it is an interintra or wedgeinterinter
block. The inter predictor of the interintra block, or the first
inter predictor(using LAST or GOLDEN frame) of the wedgeinterinter
block will be exploited in obmc prediction.

Coding gain: 0.248% (2.833%->3.081%) lowres

Change-Id: I4ac0368b9d2f2956f266b30c1ac97db8bafa0742

Reduce transform set for intra for 8x8 and smalller to 7 from 12.
Also fixes an issue with prob updates.

Enocder Speed-up about 8-10%

Coding efficiency very little change.
lowres: -2.996 (from -3.055 before)
midres: -2.482 (from -2.552 before)

Change-Id: I4ba50ff967521b33c748fe423bd92f7cf4105ebc

No performance changes.

Change-Id: Idd4043090fec09e57520bc970ed2e39e6f7e1a5e

In the rd loop, check the perf of obmc, whose mv is copied from regular
inter predictor, when wedge interinter is better than regular inter
(previously it will force allow_obmc = 0). The condition of the early
termination before this step is relaxed to avoid skipping too many obmc
predictions. The rates of the overhead are properly calculated for these tools.

The logic of the bitstream syntax:
(a single ref) the interintra flag is sent first, only if it is 0, we
send the obmc flag;
(compound refs) the obmc flag is sent first, only if it is 0, we send
the wedge interinter flag

Coding gain
lowres: 0.428% (2.287%->2.715%)

Change-Id: I5f3a34640b398e313cbf84235c9fe2073eb2173f