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Change-Id: I93702d24bf7d711b6910e2e502f9f97c661bcf6c

Change-Id: I83ca47c1469d8e383a815058c02c4826c6282873

Remove all *bmc variables, which were used to record basic motion
search results (no advanced masked compound) when obmc and warped
motion modes were allowed to work with compound ref.
Remove switchable rate that is passed in to it, since in most
motion modes, we need to recalculate the cost based on motion_mode
and the refined mv. This change slightly improve the rd perf.

Performance change: -0.024%

Change-Id: I4afe0927e97cc7e7251022957f7665ed3032079c

This patch simply aggregates the checking on the counts of certain
reference frames in the neighboring above and left blocks. It does
not incur any coding performance change.

Change-Id: I59a962ba95e7ab16731ce97371ec5709a582a0ba

Change-Id: I4f9d014324b35e30f25cae5fa570620249640cf6

Record total rate cost when computing trellis optimization.
Reduce redundant rate computation in later stages.

Speed impact: ~6% speed up
Coding performance should not be affected.

Change-Id: I9e940a2d126bb55930fcf22ea04d061eee1fc944

Skip the rate distortion search over last 2/3 reference frames for
the reference motion vectors derived from non-nearest neighbors.
The overall coding performance change is in the noise range - 0.05%
better. Speed up the encoding process by 20%.

Change-Id: I823b8ca2805ae332f4c9bc8ee255069a82db4331

Make the per transform block kernel selection process unified with
the rate distortion model used in preliminary mode search. This
makes the txk-sel model search space same as baseline.

Change-Id: I82a2d94e88a03c88154582575ced500197f8a409

Change-Id: Iea0e8665cdd5b9bc0fe17930add7068443765ea9

It's more efficient to use av1_cost_literal() instead.

Change-Id: I50727d4a4ee06492b373c2e7831c224c5eae8735

Encoder: Prior to this patch, some chroma data was calculated and
later discarded when in monochrome mode. This patch ensures that
the chroma planes are left uninitialised and that chroma
calculations are not performed.

Decoder: Prior to this patch, some chroma calculations were still
being performed in monochrome mode (e.g. loop filtering). This
patch ensures that calculations are only performed on the y
plane, with the chroma planes being set to a constant.

Change-Id: I394c0c9fc50f884e76a65e6131bd6598b8b21b10

A function to calculate chroma prediction mode info. rate cost for
intra blocks.

Change-Id: Ia71c492284675568db609dfa9ed3b5901f021027

Change-Id: I69e07309b708caa59c313ae2156828d8c089cf4d

A function to calculate luma prediction mode info. rate cost for
intra blocks.

Change-Id: I285518dc34c0ffa58bdcd09e76463c21240336e1

Change-Id: I0cd3de4a5673003f9fbe9c615e139e8133a99dcc

Change-Id: I8bb21fbbc3366690ccc13a9b31a6726dfbfa2ff4

Change-Id: I51a751cd656846e6f3db6c15e320bdc7f1c868fe

Change-Id: I6cd366d929d689217f292db07cbeaf1fd35c2055

The tx size cost should be included in the total rate cost.

Change-Id: Ib8fe9cc67cf712ba1c7c8f539b390909c7e6be7b

The ref_mv_idx offset of 1 was not taken
into account for the NEAR_MV mode.

Change-Id: I0939cfd8cf2496f6d4f0dbac67b2e03942318195

Fix tx type as the default type and search for the best prediction mode;
then do a final search for the best tx type.

When it's enabled at speed 0, encoding speed increases to 3x with 2%
compression loss on keyframes. It's currently turned on for speed
2 and above.

Change-Id: Ic9ca1479da10d467a88a4d692d9c75da40d2798d

Change-Id: I0156df138342be1f4ffa867a5e293887ff83e251

In the decoder, the function get_tx_size_context() is called
by read_selected_tx_size(), *before* mbmi->ref_frame is set up.
This means that mbmi->ref_frame still holds the ref frames from
the previous block, and does not indicate if the current block is
inter or not.

Fortunately, all of the other functions called by read_selected_tx_size()
have an explicit "is_inter" parameter, which is set correctly.
So we can just plumb this through into get_tx_size_context().

Change-Id: I00f0f3704937f592ccc5d304ed20ee25196dd520

BUG=aomedia:1236

Change-Id: I72c1e5ba7f0090c0831ca9aaccbc32dc4f1fdf4f

Change-Id: Ic68c6e8d54782f47fe9d1d1775b861edeb52bf35

Change-Id: I861ccc09454606ce4172db02a52550f9b7a7800c

Static local functions.
Remove av1_ prefix for local functions.

Change-Id: I91cda7b6a1e09683ed70cd74e724db88ddf124dc

This is to exclude coding CFL for block sizes where it is normatively
not allowed.

Reuse the alternate CDFs from the --disable-cfl path.

This yields some improvement on subset1:
   PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
-0.0113 | -0.2630 | -0.2138 |   0.0021 | -0.0110 | -0.0157 |    -0.0511

BUG=aomedia:1182

Change-Id: I1e5f23ef7f2debcf8edce788bfa63ec95db4a679

The motion vector search result at single reference frame mode is stored
for later use. There are some issues in current implementation.
1. single_newmv is only stored for 1st ref_mv, but not for other ref_mv
values tested.
2. If single reference mode is skipped and not tested, single_newmv is
not available.
3. Interintra mode always use single_newmv as its MV, which may not be
available as mentioned above.
To fix it, we store single_newmv for every ref_mv tested. In interintra
mode, if single_newmv is not available, do motion search to find a MV.

This was revealed by a motion vector unit test failure.

BUG=aomedia:1190

Change-Id: I3e690587644d4c8c31337f37380b796a3d71a3f6

This experiment has been adopted, we can simplify the code
by dropping the associated preprocessor conditionals.

Change-Id: Ia2100f102de6d9d5a67ba7178a20a50202839636

Initialize the RD_STATS variable to avoid valgrind error of
"Conditional jump or move depends on uninitialised value(s)".

BUG=aomedia:1219,aomedia:1226

Change-Id: Ie7749c8297b377750f0901d07e2c6024552a10df

Interintra RDO is moved into motion_mode_rd instead of calling
handle_inter_mode() separately. This will save time on interp
filter and new mv search, also skips interintra modes if the base
inter predictors are not good enough.

Speedup: LL ~20% HL < 1%
Tiny performnace improvements (<0.05%).

Change-Id: If5b1ad22396df7590fbc1060e26b61734a205830

Change-Id: I2a9e16bf337a91219fc2aa10937d3cd1dfa67a71

Change-Id: I26d23cd1107b4568c6f473df373be77fddb7c752

when trellis quantizaiton is disabled, the b_quantizer should be used.
existing code has a lot of hard coded flag not hooked up correctly with
high level trellis quantization enable/disable flag, which causes
fp_quantizer is used. this patch is intended to remove the hard coded
flags and correctly get them from the high level control.

Change-Id: I0142aace03586d07aedea138fce08d3e72d99c32

When the coding block size is below 16x16, the current tx size
search loop may end up searching 4x4 transform size multiple times.
This commit skips the redundant search steps. Tested a a few
1080p clips at 4 Mbps, the encoding speed is up by 10% for key
frame coding, and 3% for overall.

Change-Id: Ifbb27bad1ec55ef0011b1e789d995f36b3f4605e

Set up the identity scale factor once per frame, instead of per joint
motion search.

Change-Id: I5edd264655254f4b6a0a923d8ab43adbca044228

Add speed feature that uses hash tables to
reuse previously found optimized coefficients
in av1_optimize_txb. This skips some expensive
optimize_txb calls.

Currently shows no significant quality
degredation or speed improvement, and set to off
by default. Requires hash_me, lv_map and
lv_map_multi. Adding to speed features required
changing AV1_COMMON *cm to AV1_COMP *cpi in a
chain of functions.

Variations that have been tried:
-varying the maximum eob on which the feature
activates: 16, 32, 64. 16 currently used. 64
has best hit rate but longer execution time.
-varying the data hashed and the length of hashes
(first hash is 16 bit and based on context data,
while second hash is 16 bit and based only on
pre-optimized qcoeff values.)
-softening the data used for the hashes: ideally
this would raise the number of hits, without
compromising quality too much.

Change-Id: I94f22be82f3a46637c0489d512f2e334a307575f

BUG=aomedia:1203

Change-Id: I03ca925734535c31a1ed6bdeb7f29b5b5d5f476c

Use assert to test the assumption noted in the comment.

Ran some encodes with varying per-frame resolutions (using
SUPERRES_RANDOM and RESIZE_RANDOM modes) to ensure that these
asserts are indeed valid.

Change-Id: I30021fff05f9793f80e42c5319bed02b0ae04cbd