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Reduce height from 540 t0 360, hopefully to resolve the test failures
related to OOM.

BUG=aomedia:1177

Change-Id: Ia697d8d820a664e76f9a455189d4a58068591ddd

Change-Id: I3482355d2185fce56d4cb574ab271213df00164b

Also, avoid uninitialized intermediate variable.

Change-Id: I9e9e1e816ae0c9f0ec664b7f7d3ca75a7a22c995

Properly handle the tile load size writing operations in ext-tile
when large-scale-tile is on and off. This fixes an enc/dec mismatch
issue when both ext-tile and obu are turned on.

BUG=aomedia:1179

Change-Id: I460e0cd55ba5d0bf5b75b5a5f6866c8774693207

Fix the broken unit test when ext-tile and obu are both turned on.
The test failure was due to the merge of CONFIG_ADD_4BYTES_OBUSIZE.
This solves the unit test failure cases when cm->large_scale_tile
is on.

BUG=aomedia:1179

Change-Id: I7b4a5720e493db2a7d914fc9f8b886a67b1e85cd

Change-Id: Ib94b6342ac9e5f1faeb9c93458e8e85722b9f97a

Change-Id: If6f25deface628dbc9bc1964a352ab1b8fed1227

Change-Id: I5821e35d7cda96c20e22ab02bc2dfe8639025fde

Change-Id: I520dff073d24f56b3d4878d74086a1336bb83997

CONFIG_HIGHBITDEPTH doesn't exist anymore:
use CONFIG_AV1_ENCODER instead.

Change-Id: I6500c3faf5848106f6b5e756287d043e84bdc7af

Change-Id: I555fe53c90988d0e6fc392417b4758d558842e94

The FIXME is a leftover from the expired code flow. It is no longer
valid for the current codebase.

Change-Id: Ic498e6d5c59581b559eacc087a98479e8be37555

Change-Id: I438c4fd81ef16ef834d06e7e8eb33e3412943f5a

For the setup of prev_frame and use_prev_frame_mvs, the removed
code has a copy that already exists inside read_uncompressed_header().

Change-Id: Ic814bc1f1781320e13f9ac3e183f21e2cab589d8

The removed variable was once defined for evaluating the use of
distance-weighted compound prediction for the new skip mode, under
the scenario when all reference frames are forward predicted.

Change-Id: I114daa66d911ec8bb8ef220f7c519566037429b1

Use a lookup table to deterimine speed of adaptation in update_cdf.
Tests on 5 keyframes show improvement in BD-rate: consistently more
than -0.2% for google test sets (lowres, midres, hdres).

Change-Id: I6f8927fc6e876e22ebcf2f9340ed62e54cc79d28

1. code the range of eob in a transform block as a single symbol.
2. initialize cdfs directly.
3. initial cdfs are trained by using laplace prob estimates as in base
level coding (CL 38638)

Change-Id: I65c88d6dd0da3381feeec837928ac5bd81be4296

This reverts commit 42659162. 

Enabling OBU by default once again breaks many nightly run tests, so 
temporarily revert this commit to allow time for investigation.

BUG=aomedia:1179

Change-Id: Ifa0d287bc563176dfe3f2005cbde6c7c1ea13809

This fixes MSVC compiler warnings.

Change-Id: Iadd603a4ce2f944f708dff6b23005991cfa3d47a

Change-Id: Ic2d7026b5a859666e813766b34badd4a9ee209b7

This commit fixes the misuse of Stage_range[0] as bitdepth.

Change-Id: I2bf27aff4cc276c42dc834b01e5d20992f6e3da4

This will clear range check failures related to fwd square txfms
when using --enable-coefficient_range_checking.

Change-Id: I5cdc1751b979f612b33d6e00a47277a18792f175

1. Train and init cdfs directly.
2. Use laplace prob estimates in aom_entropy_optimizer to avoid zero
probabilities.

Change-Id: I878fc0a306cbffe3eb51c5b86d5872459b6705c5

Change-Id: Ibce950e8ca61b1518e8b9364939972315febb234

Tested with 720p encoding and av1_cost_coeffs() saves 18% time.
dc_sign_contexts[]'s size is increased to 4*16+1 to avoid crash in
previously reverted CL 4ab9a5dc.

Change-Id: I5e9e7c4d3b41abfb83e0faedd08efa42785f2858

Change-Id: I2fbf8f0b44c48719e597a98c118ec38b3347071a

This reverts commit 4ab9a5dc.

Reason for revert: Breaks encoding/decoding

Change-Id: I9db6bd36688eb182365a31a2976257fb23a2c9c8

BUG=aomedia:1180

Change-Id: I0da8b9f801fdac419a29c4113fa3606cfff8385a

This help MSVC compiler to avoid warnings.

Change-Id: Ibe53cbce7648c453bbea4db91e324bf131fbdd41

Change-Id: I523d9a89493895eb6a7af1df30a39f36ca9f159f

Copy and x, y only convolve functions should be identical to the
original 2d function.

Change-Id: I2b84a1eed775e8d7cba9bc3baa6352227a0326c8

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

Change-Id: Idf52f49d953b422f7789247df966d238fc34299b

Change-Id: I8e205e5b6310b345065200cfdac23f30badc3caa

Change-Id: I69916bb6390dd9275341d8cd3fae2d8961e1cae3

Tested with 720p encoding and av1_cost_coeffs() saves 18% time.

Change-Id: If6de7c539c4b01a3066bdc267fb375dfe77c2c50

Sub8x8 blocks will not check the extended region in motion field.
For regular block sizes, limit the extended region to be 3 points,
down from 9 points check.

Change-Id: I70f2631aa726ad01ee6bb83fffdf71ef82505888

When either component of a motion vector is above 4096, drop this
motion vector from the motion vector reference frame for later
motion field projection use. The coding performance change is close
to 0 for lowres and midres. This ensures that the motion vector
and reference frame tuple can be efficiently stored within 32 bits.

Change-Id: I9ae60a5caab2d3f49200abb5415532d82986839f

- Make the add_4bytes_obusize experiment part of the obu experiment.
- Remove the add_4bytes_obusize experiment flags.
- Update the encoder, decoder, and tooling sources.

BUG=aomedia:1125

Change-Id: Ia5c443c855e52618257b39c44ca2632703bf83fd

Change-Id: I40232b965ba28b4dcef7ebfe8697679f6b0ffc96

Use the frame ID that indicates the frame display order to identify
whether two different reference frames exist for inter-coded frames.
If there is only one unique reference valid in the reference buffer,
there is no need to signal reference_mode. Instead, the decoder may
identify such scenario and set reference_mode to SINGLE_REFERENCE.

Change-Id: If7d374f5355f153c50b408be5a9956a833c976c3