- 22 Aug, 2017 1 commit
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Sarah Parker authored
This will allow the mrc-tx experiment to pass in its own color map and set of probabilities to the tokenize and bit packing functions. The corresponding change on the decoder side will come in a followup shortly. No change in performance. Change-Id: I1872b7f1b1cf5b102e6289388ce1ae449e67cb4d
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- 18 Aug, 2017 1 commit
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Yaowu Xu authored
BUG=aomedia:685 Change-Id: I8490af713c53e8c420ef9dffa7c27bb71bbfca54
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- 15 Aug, 2017 1 commit
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Urvang Joshi authored
This experiment has been adopted as it has been cleared by Tapas. Change-Id: I0682face60f62dd43091efa0a92d09d846396850
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- 10 Aug, 2017 1 commit
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Urvang Joshi authored
This experiment is now adopted as it was cleared by Tapas. Note: Palette use can still be controlled by command-line option "--tune-content=..." in 'aomenc'. Change-Id: I832f49f20f60c34bdef5b424755849c496687e87
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- 08 Aug, 2017 1 commit
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Wei-Ting Lin authored
Also add another default probabilities and for two-modes Change-Id: Ia503301e6d8e89c8d7c945ff25588807107d4807
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- 04 Aug, 2017 1 commit
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Rupert Swarbrick authored
Change-Id: I0c3772110e9fa62ac687bd99e290b5006bf3bd6c
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- 29 Jul, 2017 1 commit
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David Michael Barr authored
Expand the range of alpha to [-2, 2] in Q3. Jointly signal the signs, including zeros. Use the signs to give context for each quadrant and half-axis. The (0, 0) point is excluded. Symmetry in alpha_u == alpha_v yields 6 contexts. Results on Subset1 (Compared to 9136ab7d with CFL enabled) PSNR | PSNR Cb | PSNR Cr | PSNR HVS | SSIM | MS SSIM | CIEDE 2000 -0.0792 | -0.7535 | -0.7574 | -0.0639 | -0.0843 | -0.0665 | -0.3324 Change-Id: I250369692e92a91d9c8d174a203d441217d15063 Signed-off-by:
David Michael Barr <b@rr-dav.id.au>
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- 28 Jul, 2017 1 commit
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Luc Trudeau authored
CfL is now an independent mode. Results on Subset1 (Compared to 4266a7ed with CFL enabled) PSNR | PSNR Cb | PSNR Cr | PSNR HVS | SSIM | MS SSIM | CIEDE 2000 -0.1645 | -0.4017 | 0.2475 | -0.1851 | -0.2179 | -0.2338 | -0.2897 Change-Id: I2e86e7ea7bfc12bb1d763e70a136ca992d57a3c5
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- 27 Jul, 2017 1 commit
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Cheng Chen authored
Make CDEF select filter strength every 64x64 block when block size could be larger than 64x64. With/without this patch, coding performances on AWCY and Google test of lowres and midres are neutral. BUG=aomedia:662 Change-Id: Ief82cc51be91fc08a7c6d7e87f6d13bcc4336476
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- 26 Jul, 2017 1 commit
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Luc Trudeau authored
A separate prediction mode struct is added to allow for uv-only modes (like CfL). Note: CfL will be added as a separate mode in an upcoming commit. Results on Subset1 (Compared to 4266a7ed with CfL enabled) PSNR | PSNR Cb | PSNR Cr | PSNR HVS | SSIM | MS SSIM | CIEDE 2000 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 Change-Id: Ie80711c641c97f745daac899eadce6201ed97fcc
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- 20 Jul, 2017 3 commits
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Zoe Liu authored
This CL adds an extra alt-ref reference frame, namely ALTREF2_FRAME, and designs the contexts for ALTREF2_FRAME. Change-Id: I12fe8629b868aebf6c2b54260fca5abc38f90ae6
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Cheng Chen authored
New deblocking filter that smooths block boundaries in an estimated direction of object orientation. 1. Select the proper direction for deblocking filtering. Compute abs gradient line by line for the block. Select the direction with least sum of abs gradient. 2. Apply deblocking filtering for a block along this direction. Apply directional filtering for Y, U, V planes. Coding gain on Google test set: % avg_psnr ovr_psnr ssim lowres -0.129 -0.136 -0.277 midres -0.103 -0.127 -0.188 hdres -0.159 -0.158 -0.173 screen_content -0.408 -0.397 -0.695 Change-Id: Ie8646dcc163ace5d8faf5e502b38342d885efc30
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Sarah Parker authored
This adds the new transform to the list of possible transforms. The impact on performance is in the noise range because the transform implementation currently performs DCT as a placeholder. This transform will initially only have an implementation for TX_32X32 and it is skipped in the tx search for smaller transform sizes. Change-Id: Iab2faddc525b478ca06972a753428a4f4ef53ac6
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- 14 Jul, 2017 1 commit
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Yunqing Wang authored
Added a 1-bit flag 'large_scale_tile'. If it is 0 that is the default value, use normal tile coding in TILE_GROUPS. If it is 1, use large-scale tile coding in EXT_TILE. At large_scale_tile=1 case, if single-tile-decoding is required, then the loopfilter is disabled. Related API and unit tests were modified. Change-Id: I3ba12dc3d80ccf1ab21543ab3b16c02282c34e3b
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- 12 Jul, 2017 2 commits
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Rupert Swarbrick authored
This patch adds support for 4:1 rectangular blocks to various common data arrays, and adds new partition types to the EXT_PARTITION_TYPES experiment which will use them. This patch has the following restrictions, which can be lifted in future patches: * ext-partition-types is incompatible with fp_mb_stats and supertx for the moment * Currently only 32x32 superblocks can use the new partition types There's a slightly odd restriction about when we allow PARTITION_HORZ_4 or PARTITION_VERT_4. Since these both live in the EXT_PARTITION_TYPES CDF, read_partition() can only return them if both has_rows and has_cols is true. This means that at least half of the width and height of the block must be visible. It might be nice to relax that restriction but that would imply a change to how we encode partition types, which seems already to be in a state of flux, so maybe it's better to wait until that has settled down. Change-Id: Id7fc3fd0f762f35f63b3d3e3bf4e07c245c7b4fa
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Zoe Liu authored
(1) Work with var-refs to remove redundant bits in ref frame coding; (2) Add a new uni-directional compound reference pair: (LAST_FRAME, LAST3_FRAME); (3) Redesign the contexts for encoding uni-directional reference frame pairs; (4) Use aom_entropy_optimizer to collect stats for all the default probability setups related to the coding of reference frames. Compared against the baseline (default enabled tools excluding ext-tx and global-motion for encoder speed concern) with one-sided-compound, the coding gain of ext-comp-refs + var-refs - one-sided-compound is: lowres: avg_psnr -0.385%; ovr_psnr -0.378% ssim -0.344% midres: avg_psnr -0.466%; ovr_psnr -0.447% ssim -0.513% AWCY - High Latency: PSNR | PSNR Cb | PSNR Cr | PSNR HVS | SSIM | MS SSIM | CIEDE 2000 -0.2758 | -0.1526 | -0.0965 | -0.2581 | -0.2492 | -0.2534 | -0.2118 AWCY - Low Latency: PSNR | PSNR Cb | PSNR Cr | PSNR HVS | SSIM | MS SSIM | CIEDE 2000 -1.0467 | -1.4500 | -0.9732 | -0.9928 | -1.0407 | -1.0180 | -1.0049 Compared against the baseline (default enabled tools excluding ext-tx and global-motion for encoder speed concern) without one-sided-compound, the coding gain of ext-comp-refs + var-refs - one-sided-compound is: lowres: avg_psnr -0.875%; ovr_psnr -0.877% ssim -0.895% midres: avg_psnr -0.824%; ovr_psnr -0.802% ssim -0.843% Change-Id: I8de774c9a74c20632ea93ccb0c17779fa94431cb
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- 08 Jul, 2017 1 commit
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Debargha Mukherjee authored
This is intended to be a no-op when scaling is not enabled, but is expected to result in more accurate prediction when references need to be scaled. However note all xs, yx, subpel_x and subpel_y values are now at higher than 1/16th precision. Change-Id: I4b22573ea290a31fc58ead980bb0d5e5a9e89243
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- 06 Jul, 2017 1 commit
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hui su authored
Prioritize modes that are more likely to be picked. Impact on compression is neutral. Keyframe encoding speed increases by about 5%. Change-Id: I57f7481a42b833203e4cfb84806fe755ec37d615
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- 28 Jun, 2017 1 commit
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Wei-Ting Lin authored
Change-Id: Id5c3df752528a3ea74e655b3d18a5d6f258a2238
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- 27 Jun, 2017 1 commit
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Wei-Ting Lin authored
Define the syntax and entropy coding templates for NCOBMC_ADAPT_WEIGHT. The actual values of the default probabilities and the index tree structure need to be fine tuned. In this experiment all mv's in a superblock are sent first as in the ncobmc case. Change-Id: I68d50d3d27346c2847ea449a1168c6a99fbb4d3d
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- 21 Jun, 2017 1 commit
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Timothy B. Terriberry authored
cb4x4 itself should not require these sizes. This simplifies compatibility with other experiments, since we can first make them work with cb4x4 (which is now on by default), and then worry about chroma_sub8x8 and chroma_2x2 (which is not) in separate steps. Encoder and decoder output should remain unchanged. Change-Id: Iff2a5494cab3b7d96f881e8bd9cd4bf18c817cfa
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- 19 Jun, 2017 1 commit
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Zoe Liu authored
The tool of ext-comp-refs adds the uni-directional compound reference prediction. In details, 3 pairs of uni-direcitonal compound references are added for the comp ref prediction: (LAST_FRAME, LAST2_FRAME), (LAST_FRAME, GOLDEN_FRAME), and (BWDREF_FRAME, ALTREF_FRAME). This new tool of ext-comp-refs will eventually overwrite one-side-compound and have the two coding tools to merge to one. It achieves -0.35 ~ -0.55% coding gains in BDRate, compared against AV1 baseline with the default experiments on, but without one-sided-compound. It achieves -0.2% ~ -0.3% coding gains when one-sided-compound is on. It achieves larger gains on higher resolution. Change-Id: Icbdb16e97b96aaebaf2213f5f72d5331e2e358eb
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- 16 Jun, 2017 1 commit
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Fergus Simpson authored
RESIZE_SCALE_DENOMINATOR and SUPERRES_SCALE_DENOMINATOR were two constants with the same value that did essentially the same thing. This patch merges the two into SCALE_DENOMINATOR for simplicity's sake. Change-Id: I252a9b7f89f10d77bdb0c3cf2d67d31d337afa4b
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- 15 Jun, 2017 2 commits
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Debargha Mukherjee authored
Unifies the command line arguments for resize and superes. Removes resize arguments that are currently unused. Change-Id: I1362dffceb8257cee539f92679d1e8d79df08e66
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Fergus Simpson authored
Adds "superres-mode" and "superres-numerator" arguments to configure superres scaling. There are only two modes right now: SUPERRES_FIXED and SUPERRES_DYNAMIC. 0 sets the fixed mode and 1 sets the dynamic mode. For the fixed mode superres will scale to the provided numerator where possible. The cumulative scale change over resizing and superres is limited to 1/2, so it may have to back off. For the dynamic mode, the provided numerator will be used as the initial numerator. Asides from that it's just random for now. Change-Id: Ibae01c77abba2599fbf51096459d09ddca458d4f
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- 13 Jun, 2017 2 commits
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Thomas Davies authored
Only apply quantisation matrices when the transform is 2D. Change-Id: Iae9ac910c11199f7944a80d10d334db3b711059d
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Zoe Liu authored
Now the single ref comp mode should work with WEDGE and COMPOUND_SEGMENT. For motion_var, the OBMC_CAUSAL mode uses the 2nd predictor if the neighboring block is single ref comp mode predicted. This patch removes the mode of SR_NEAREST_NEWMV and leaves four single ref comp modes in total: SR_NEAREST_NEARMV SR_NEAR_NEWMV SR_ZERO_NEWMV SR_NEW_NEWMV Change-Id: If6140455771f0f1a3b947766eccf82f23cc6b67a
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- 05 Jun, 2017 1 commit
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Urvang Joshi authored
Earlier, the condition was negating all non-directional modes to check if a mode is directional. This was error-prone, e.g. when a new non-directional mode is added. By checking for directional modes directly, we avoid such errors. Change-Id: Ia4a62e278cd73078c53ed5096db646eff77f054e
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- 01 Jun, 2017 1 commit
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Timothy B. Terriberry authored
cb4x4 itself should not require these sizes. This simplifies compatibility with other experiments, since we can first make them work with cb4x4 (which is now on by default), and then worry about chroma_2x2 (which is not) in separate steps. Encoder and decoder output should remain unchanged. Change-Id: I4e9fcdae49f238b5099a3c74a398fe993c2545f8
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- 24 May, 2017 1 commit
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David Michael Barr authored
Separate the codes into a table of distinct values and an index into that table. Pull the SSE calculation of the RDO loop and avoid repeating for the same alpha values. Change-Id: I8c4bd7eab6f8000e6aca9687d9190abc3e270c37 Signed-off-by:
David Michael Barr <b@rr-dav.id.au>
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- 21 May, 2017 2 commits
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Timothy B. Terriberry authored
Currently the "transform units" used to measure transform sizes in some parts of the code are based on the smallest defined transform size. cb4x4 currently defines a 2x2 transform size, even when chroma_2x2 is not enabled, which means that the scale of the transform units was always double that of MODEINFO units. Several areas of the code were hard-coding this assumption instead of converting from one to the other using appropriate constants. Change-Id: Ibc55671aa5bc3ad272cb8a036f9c4f9621df85ab
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Timothy B. Terriberry authored
Create named constants for the minimum TX_SIZE used in the luma plane, as well as the minimum allowed TX_SIZE for which we have to explicitly code a selection (i.e., one larger than the minimum luma TX_SIZE). Then, use these constants consistently with tx_size_to_depth() to index the tx_size counts in FRAME_COUNTS, and also consistently use TX_SIZE named constants to index the tx_size_implied counts. Failing to index these counts correctly can, e.g., cause tx_mode to be chosen incorrectly. Change-Id: I706a62a33e2282e67c97a68bade87fb8023ec13b
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- 19 May, 2017 1 commit
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Yue Chen authored
It gives 0.1% gain on lowres and midres Change-Id: I555a492a68571c525713840d73aa5614fe80a87d
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- 18 May, 2017 2 commits
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Yue Chen authored
Improved the performance a little bit compared to using the full set Change-Id: I28a96459fa77d7e1d5c101d162faa2effd525341
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Debargha Mukherjee authored
Change-Id: I640cf08ac583ff5092a18e81cd0e33f05609db6b
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- 11 May, 2017 1 commit
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Yue Chen authored
Use CONFIG_INTERINTRA to properly separate interintra from the basic ext_inter experiment. When macro REDUCE_INTERINTRA_MODES is 1, only 4 ii modes are enabled so as to reduce the complexity overhead. (Right now the flag is off) Change-Id: Iec6f36a1000f181adbb822ad66c7d5b2625e9cc7
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- 09 May, 2017 1 commit
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Urvang Joshi authored
This has been taken care of already. Change-Id: I0198fdbcd48fc355013de79644513279c8acb0de
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- 08 May, 2017 1 commit
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Urvang Joshi authored
This experiment extends ALT_INTRA by adding two new modes: smooth horizontal and smooth vertical. Improvement on *intra frames* in BDRate (PSNR): =============================================== AWCY (high latency): -0.46% (Also, -1.0% or more on PSNR Cb,Cr and APSNR Cb,Cr). AWCY (low latency): -0.43% (Also, -0.88% to -0.94% on PSNR Cb,Cr and APSNR Cb,Cr). Google sets: lowres: -0.454 midres: -0.484 hdres: -0.525 Improvement on *video overall* in BDRate (PSNR): ================================================ AWCY (high latency): -0.15% Google sets: lowres: -0.085 midres: -0.079 Change-Id: I9f4e7c1b8ded1fe244c72838f336103ccc715d50
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- 05 May, 2017 2 commits