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Change-Id: I9e2a8db4e59cb9c109e978e473749ebc4e910148

This commit is a manual cherry-pick from aom/master:
45592a39

Only part of the changes apply in nextgenv2

Change-Id: I1e22514c6fe5af556710254278f2f8a5805db999

- Add minimal compiler flag testing.
- Generate aom_config.c and aom_config.h. Note: hard coded
  to generic-gnu values for now.
- Still a work in progress. This will not build anything.

BUG=https://bugs.chromium.org/p/aomedia/issues/detail?id=76

Change-Id: Id65b42ea9f4c4f744d788660e2de7234886ce039

Use void casts and avoid unused/unnamed parameter warnings.

Change-Id: Id02ec2c613cb1423f693bcc56832ccd9b41d05bd

Change-Id: I642bc205a7d2c4d472385fbeb4323e62e17984b4

The initialization of transform parameters was missing, that led to a
crash in encoder.

Change-Id: I9e35830d5f24e771c845f0d8881671d6b7228c5e

Change-Id: I5d95bb897d335dc17aa0ae5e873ba7dee46c6fda

Change-Id: I00f147cd372cedc5038708b0f23f6fae68918528

Change-Id: I17d05bbf75a201fd010fc17e2d9bd0db8ef36d41

The transform functions have been refactored in nextgenv2, this commit
resolves the calls in pvq patch to use this new scheme.

Change-Id: I1b56e75106a3357bb19bd7df2b4ba305eb9ed185

This commit resolves some compiling issues due to merge.

Change-Id: I0eef8aa36c404e185e0b0004948a49307c360d3e

Previously, do_cubic_filter would return results with the
wrong precision if the sample point was exactly aligned to
a pixel.

Change-Id: I40139f9a6701a8e72e691f37bb352f7814a7f306

PVQ replaces the scalar quantizer and coefficient coding with a new
design originally developed in Daala. It currently depends on the
Daala entropy coder although it could be adapted to work with another
entropy coder if needed:
./configure --enable-experimental --enable-daala_ec --enable-pvq

The version of PVQ in this commit is adapted from the following
revision of Daala:
https://github.com/xiph/daala/commit/fb51c1ade6a31b668a0157d89de8f0a4493162a8

More information about PVQ:
- https://people.xiph.org/~jm/daala/pvq_demo/
- https://jmvalin.ca/papers/spie_pvq.pdf

The following files are copied as-is from Daala with minimal
adaptations, therefore we disable clang-format on those files
to make it easier to synchronize the AV1 and Daala codebases in the future:
 av1/common/generic_code.c
 av1/common/generic_code.h
 av1/common/laplace_tables.c
 av1/common/partition.c
 av1/common/partition.h
 av1/common/pvq.c
 av1/common/pvq.h
 av1/common/state.c
 av1/common/state.h
 av1/common/zigzag.h
 av1/common/zigzag16.c
 av1/common/zigzag32.c
 av1/common/zigzag4.c
 av1/common/zigzag64.c
 av1/common/zigzag8.c
 av1/decoder/decint.h
 av1/decoder/generic_decoder.c
 av1/decoder/laplace_decoder.c
 av1/decoder/pvq_decoder.c
 av1/decoder/pvq_decoder.h
 av1/encoder/daala_compat_enc.c
 av1/encoder/encint.h
 av1/encoder/generic_encoder.c
 av1/encoder/laplace_encoder.c
 av1/encoder/pvq_encoder.c
 av1/encoder/pvq_encoder.h

Known issues:
- Lossless mode is not supported, '--lossless=1' will give the same result as
'--end-usage=q --cq-level=1'.
- High bit depth is not supported by PVQ.

Change-Id: I1ae0d6517b87f4c1ccea944b2e12dc906979f25e

Change-Id: I7117a6c14dc8438e4225b50bd2d3ebbaa7f850cc

Only read bits that were actually written.

Change-Id: I6d901123c319a1d92c54f511d3caa56daf882281

Only read bits that were actually written.

Change-Id: Id62c52b7804cbfb401e6e7388201406bc899ea5d

When CONFIG_OS_SUPPORT is not enabled the aom_timer timer function
stubs cause unused parameter warnings. This comments out the arg
names and silences the warning.

Change-Id: I97bdbcbebdf081ac5cb2ffd86439028a1e672fa2

av1/encoder/rdopt.c:9533 ‘zeromv[1].as_int’ may be used
uninitialized in this function [-Wmaybe-uninitialized]
this was spurious given the logic in the if

Change-Id: I8ddfe7e46d1bf5593cc8624f05c9f181243a87d4

Fix the bool coder test not to use a probability of 100%.

Change-Id: I799871cb0c48580edf0ee15a6c9931d27591ec99
(cherry picked from commit 9b79f6a3)

* changes:
  Record YUV planes' txfm block coeff cost in handle_inter_mode()
  Separate coefficient cost of U/V planes in write_modes_b()

* changes:
  Add av1_ prefix on ###_rd_stats functions
  Use init_rd_stats() in encodeframe.c
  Add transform block coefficient cost in RD_STATS for debugging
  Add helper functions to modify RD_STATS
  Add mi_row and mi_col into mbmi to facilitate rd_debug process
  Add token cost comparison in write_modes_b()

* changes:
  warped_motion.c: delete unused filter_4tap[]
  warped_motion.c: quiet float-conversion warnings

Change-Id: Ia37f170d8fd961d78a751d84b9525ab7e973b81a

Change-Id: I3bc782d68bcd9b52b38210eec9eecb21146fde75

Change-Id: Ie3082db5b0fead8c322b2aeede4eff7cd723ea12

Change-Id: I8359e8498efd301ff81eea1d7466d0f3fec5e006

Change-Id: Iae50d0b0c4f8f383ab4f91d2c1c2fa4e799c7250

Those functions includes
init_rd_stats()
invalid_rd_stats()
merge_rd_stats()

This CL help simplify the code.

Change-Id: Id1704d883bd21a039b0478a940994ca14184ae1c

Change-Id: Ia69f13c47f2dd34fabd220652691049166a06a68