These signals were in the uncompressed frame header (as a temporary
hack), which caused two problems:
* We don't want that header to be duplicated in the slice header
* It was necessary to signal the number of bits to transmit up front
However, the filter size can be 128x128 which is greater than the SB
size, and a decoder wouldn't be able to know whether to read a bit or
not until the final SB of that 128x128 block has been decoded
(depending on whether the 128x128 is all skip or not). Therefore the
signalling was changed for 128x128 blocks so that every top left SB of
a 128x128 filter block contains a signal regardless of whether the
block is all skip or not. Also, all the MB's of 128x128 block are
filtered even if they are skip MB's. This gives the signal a purpose
even when the 128x128 block is all skip, and it also gives a slight
coding gain as it leaves a way to filter skip blocks, which was
previously forbidden.
Low latency:
PSNR YCbCr: -0.19% -0.14% -0.06%
PSNRHVS: -0.15%
SSIM: -0.13%
MSSSIM: -0.15%
CIEDE2000: -0.19%
High latency:
PSNR YCbCr: -0.03% -0.01% -0.09%
PSNRHVS: 0.04%
SSIM: 0.00%
MSSSIM: 0.02%
CIEDE2000: -0.02%
Change-Id: I69ba7144d07d388b4f0968f6a53558f480979171
To get ready for pulling AV1 to nextgenv2
Replace the experimental flag by MOTION_VAR. Rename major variables.
Change-Id: If6cf4f37b9319c46d8f90df551cc7295d66ca205
* changes:
Deringing cleanup: remove DERING_REFINEMENT (always on now)
Don't run the deringing filter on skipped blocks within a superblock
Don't dering skipped superblocks
On x86 use _mm_set_epi32 when _mm_cvtsi64_si128 isn't available
* changes:
Unfork ANS decode_coefs
Remove ZERO_TOKEN from the ANS tokenset
Drop costing ANS tokens from derived probabilities
Unfork ANS pack_mb_tokens
This can be re-added after aligning AOM's ANS with nextgenv2's ANS.
This partially reverts commit 3829cd2f2f.
Change-Id: I78afc587f1abfe33ffcd53b3262910cfae135534
Before this change, gm parameters were being written to the
bitstream for all frames, but only read for inter only frames,
causing a bitstream error.
Change-Id: I63b8e2fdf6358e07cc00718de04cc399809bde37
Rename av1_write_tree() to aom_write_tree() and move it into bitwriter.h
to match aom_read_tree() in bitreader.h.
Manually cherry-picked from aom/master:
33a143fa7ac42d62080bfc20468cb76ad26045db
Change-Id: I6c686cdd3e0f179d7e95c5bc6984558b62d46d67
This commit ports a CLPF change from aom/master by manually
cherry-picking:
7560123c066854aa40c4685625454aea03410b18
Change-Id: I61eb08862a101df74a6b65ece459833401e81117
Disable rect_tx because we only support 4x4 Walsh-Hadamard transform
in lossless mode.
Fixes failure in ./test_libaom --gtest_filter=*Large*ScreencastQ0/1
Configuration: --enable-experimental --enable-var-tx --enable-rect-tx
--enable-ref-mv --enable-ext_intra --enable-ext_tx --enable-debug
--disable-optimizations
Change-Id: Ib6b3494c7dcf7182f1cab9b138388d054851a23d
Includes a major refactoring/enhancement to support
tile-adaptive switchable restoration. The framework can be
readily extended to add more restoration schemes in the
future. Also includes various cleanups and fixes.
Specifically the framework allows restoration to be conducted
on tiles such that each tile can be either left unrestored, or
use bilateral or wiener filtering.
There is a modest improvemnt in coding efficiency (0.1 - 0.2%).
Further enhancements will be added subsequently to improve coding
efficiency and complexity.
Change-Id: I5ebedb04785ce1ef6f324abe209e925c2d6cbe8a
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
This allows for a clean subtraction of 1 along the transform
matrix diagonal and also makes the order of the parameter list
a little more intuitive.
Change-Id: I6a5d754af41b8d1292f241f9b21473160517d24f
Bitstream syntax:
For a rectangular inter block, 'rect_tx' flag is sent to indicate if
the biggest rect tx is used. If no, continue to decode regular
recursive tx partition.
Change-Id: I127e35cc619b65acb5e9a0717f399cdcdb73fbf0
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
This patch completes the global motion experiment
implementation. It modifies the format of the motion
parameters to use the mv union to facilitate faster
copying and checks for parameters equal to 0 that occur
frequently in rdopt. The rd decisions for the global motion experiment
have also been added to rdopt.
Change-Id: Idfb9f0c6d23e538221763881099c5a2a3891f5a9
Cherry-Picked the following commits:
0defd8f Changed "WebM" to "AOMedia" & "webm" to "aomedia"
54e6676 Replace "VPx" by "AVx"
5082a36 Change "Vpx" to "Avx"
7df44f1 Replace "Vp9" w/ "Av1"
967f722 Remove kVp9CodecId
828f30c Change "Vp8" to "AOM"
030b5ff AUTHORS regenerated
2524cae Add ref-mv experimental flag
016762b Change copyright notice to AOMedia form
81e5526 Replace vp9 w/ av1
9b94565 Add missing files
fa8ca9f Change "vp9" to "av1"
ec838b7 Convert "vp8" to "aom"
80edfa0 Change "VP9" to "AV1"
d1a11fb Change "vp8" to "aom"
7b58251 Point to WebM test data
dd1a5c8 Replace "VP8" with "AOM"
ff00fc0 Change "VPX" to "AOM"
01dee0b Change "vp10" to "av1" in source code
cebe6f0 Convert "vpx" to "aom"
17b0567 rename vp10*.mk to av1_*.mk
fe5f8a8 rename files vp10_* to av1_*
Change-Id: I6fc3d18eb11fc171e46140c836ad5339cf6c9419
