This commit is a manual cherry-pick from aom/master:
45592a39d3b00aee4d6bd70da669400017b7a5d8
Only part of the changes apply in nextgenv2
Change-Id: I1e22514c6fe5af556710254278f2f8a5805db999
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:
fb51c1ade6
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
This commit makes the encoding process of the recursive transform
block partition support both rectangular and square transform block
sizes as the starting point. If the coding block size is rectangular,
it would allow the transform block size to start from the largest
rectangular transform size, and recursive parse to the selected
coding sizes.
Change-Id: I576628b9166565bada6a918f0a1e67849dfef4cd
This commit allows the partition context model to account for the
maximum transform block size of the coding block.
Change-Id: I22b91e85fff70faa974afd362ce327d3f2eda81d
This commit adds simp-mv-pred experiment. The experiment is to work on
top of ref-mv experiment to save memory bandwidth and reduce the size
of line buffer needed in ref-mv experiment.
When compared to ref-mv, this experiment showed:
low-delay BDR gain: 0.03%
High-delay BDR gain: 0.01%
memory/memory bandwidth saving: 40%
local memory/gate count saving: 20%
Change-Id: Ic4006e041fc58ede411da83d0d730c464ebe1749
Use the transform block partition depth counts to decide if to
reset the tx_mode at frame header level. Add a comment to make this
explicit.
Change-Id: I417920b4b61eeb91cde9536336a12deea2d42f79
These are in response to post-commit suggestions made on
If429c93bb90b66fdff0edc07ecd9fc078077d303.
Change-Id: Id29afa158471bd6259bd07ac00812a50bfd0a709
This ensures that the parameter refinement never
results in a motion parameter value that exceeds the number
of alloted bits in the bitstream. It accounts for all of
the necessary precision shifts required to make global motion compatible
with the warped motion library. It also accounts for the
zero-centering that is applied to global motion parameters that are
naturally centered around one.
Change-Id: If429c93bb90b66fdff0edc07ecd9fc078077d303
Previously, we assumed that av1_init_plane_quantizers is always called with
segment_id == xd->mi[0]->mbmi.segment_id (and use the latter to derive the value
of 'qindex' to use in the quantizer). But this is no longer true when supertx
is enabled. This patch instead remembers the value of 'qindex' derived from
the latest call to av1_init_plane_quantizers and uses that directly.
Change-Id: Ifa1c5bf74cad29942ff79b88ca92c231bc07f336
Check the encoding statistics. If all the coding blocks use the
max transform size, skip transform size coding in the frame header.
Change-Id: I31cb16314e87f945d7e95a34a90a5536b3ed82d5
Skip counting the inter transform block size distribution for
the intra transform block size coding.
Change-Id: Ifad9d843f57d069d0619a54d66ca18101e1b69f1
This CL will facilitate adapt_scan experiment.
In adapt_scan experiment, dynamic scan order will be stored in
AV1_COMMON
Change-Id: I4763ea931b5e1af54d4f173971befeb01a4db335
* changes:
Fix warnings reported by -Wshadow: Part4: main directory
Fix warnings reported by -Wshadow: Part3: test/ directory
Fix warnings reported by -Wshadow: Part2b: more from av1 directory
Fix warnings reported by -Wshadow: Part2: av1 directory
Fix warnings reported by -Wshadow: Part1b: scan_order struct and variable
Fix warnings reported by -Wshadow: Part1: aom_dsp directory
Move STAT_TYPE enum to source file.
Code cleanup: mainly rd_pick_partition and methods called from there.
The tx_partition_set_contexts function changes tx_size even
for blocks coded with a rectangular transform.
This causes an internal rd inconsistency when using all of
CONFIG_VAR_TX, CONFIG_RECT_TX, CONFIG_EXT_TX.
Change-Id: Ia45d4a8893b0961534219bb96d9652719038c7a1
While we are at it:
- Rename some variables to more meaningful names
- Reuse some common consts from a header instead of redefining them.
Cherry-picked from aomedia/master: 863b0499
Change-Id: Ida5de713156dc0126a27f90fdd36d29a398a3c88
