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  • research-v11.0.0

    3a5da21a · Initialize quantization matrix only when it is used · 
    Research-v11.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-F141 Part 1 "Removal of AV1 Separable Wiener filter"
- CWG-F176 "CCSO reuse reference frame index signaling improvement"
- CWG-D130 "Quantization Matrices Coding for AV2"
- CWG-F195 "Warp parameter range clamp unification"
- CWG-F164 "Intra SDP logic simplification"
- CWG-F185 "Only write TMVP MVs once"
- CWG-F183 "Enhanced parsing dependency removal and simplification of skip mode"
- CWG-F157 "On addressing SDP-CFL latency"
- CWG-F192 "Improved TIP Frame Filtering"
- CWG-F196 "Disable DMVR in TIP-direct frame build"
- CWG-F135 "Chroma Extension of CWG-F110 (Lossless Transform Coding)"
- CWG-F184 "Context Modeling Line Buffer Reduction"
- CWG-F216 "Simplification of Warp Reference List (WRL) for All Warp Modes"
- CWG-F242 "Optimized Signaling of Quantization Matrices"
- CWG-F142 "Extension of the Motion Vector Range"
- CWG-F203 "Context Reduction of CCTX"
- CWG-F107 "Fix OPFL issues and remove DAMR"
- CWG-F063 "Add partition block aspect ratio constraint"
- CWG-F236 "Extend TCQ to All Frames"
- CWG-F139 "Removal of Filter-Intra Prediction Mode"
- CWG-F129 "WRL Improvements"
- CWG-F194 "Optimized Signaling of Global Motion Vector for TIP Direct Output Mode"
- CWG-F182 "Addressing chroma prediction type delay in chroma merge area"
- CWG-F170 "Bugfix for optical flow refinement auto mode"
- CWG-F137 "Simplification for Blending Mode"
- CWG-F226 "Context reductions for Palette mode"
- CWG-F177 "IntraBC Local Search Range Alignment" (Method B)
- CWG-F193 "Bugfix for warp causal mode" (Method 2)
- CWG-F247 "Warp Extend Simplification" (Method 1)
- CWG-F240 "Coding Tools for Picture Resizing Mode"
- CWG-F141 Part 2 "Removal of AV1 Self-Guided Filter"
- CWG-F208 "Enable Local Compound Warp Mode for AVM-v11" (Test 3.2 + no line buffer increase)
- CWG-F249 "On Writing Delay Mechanism of Global IntraBC" (Method 2)
- CWG-F246 "Adaptive optical flow based motion vector refinement in TIP-direct mode"
- CWG-F218 "Results of the FG8 activity on context modeling simplifications" (CT8)
- CWG-F124 "CCSO Clean Up"
- CWG-F165 "Improvement for IntraBC in key frames" (Test 2 +  check the local IBC range with BAWP)
- CWG-F187 "Guided Detail Filter: Improvements" (Test 3)
- CWG-F206 "On Dynamic Reference List (DRL) size"
- CWG-F258 "Add a reduced ref_frame_mvs mode sequence flag"
- CWG-F302 "Reduction of Optical Flow Multiplications"
- CWG-F280 "Removal of WARPMV WARP_CAUSAL"
- CWG-F268 "Low-level changes for Multilayer Coding in AV2"
- CWG-F262 "Larger Identity Transforms for Lossless Coding"
- CWG-F241 "Dynamic Reference List (DRL) Pruning Limitation"
- CWG-F238 "On frame MV precision" (Test1)
- CWG-F202 "Simplification for ORIP"
- CWG-F303 "On Division Handling" (Aspect 1 and 4)
- CWG-F140 "Extension to reduced transform set" (set 1, 2 and 4)
- CWG-F297 "Guided Detail Filter: Improvements 2" (Aspects 1, 2 and 3)
- CWG-F283 "Deblocking Filter Chroma Line Buffer Fix"
- CWG-F285 "Parsing Dependency Reduction for Warp Causal mode"
- CWG-F252 "Reference Sample Reduction and Sequence Level Flag Addition for MHCCP" (Aspect 1 + 2 + issue fix, All chroma formats)
- CWG-F171 "Parsing dependency removal for coefficient related syntax" (retrained param version)
- CWG-F079 "Film grain synthesis improvements for AVM"  (64x64 template + switch between 16x16/32x32 block size)
- CWG-F278 "Flexible TIP block size decision"
- CWG-F235 "Remove Palette Mode for Chroma"
- CWG-F300 "Switchable Residual Coding for Identity Transform (IDTX)/Forward Skip Coding (FSC) Mode"
- CWG-F271 "On Reference Ranking in Resize Mode"
- CWG-F069 "On the Maximum Number of Segments"
- CWG-F290 "Further simplifications to TMVP and MV trajectory"
- CWG-F315 "Signaling improvements for max_drl_bits in frame header"
- CWG-F296 "On Block Partition Entropy Context Line Buffer"
- CWG-F178 "Large Transform for Chroma" (Test 0e,1e)
- CWG-F143 "Adaptive wedge boundary" (Scheme 1)
- CWG-F191 "Symbol size reduction for intra mode, EOB and inter transform type signaling"
- CWG-F273 "Reduced Transform Block Partition"
- CWG-F266 "On 64-Point Transform"  (off by default)
- CWG-F284 "Deblocking DQP control" (off by default)
- CWG-F287 "Extended motion vector predictor"
- CWG-F265 "On disabling loop-filters across tile-boundaries and for lossless segments" (off by default)
- CWG-F332 "On 64x64 Transform Block Coding Order" (off by default)

High-level Syntax
-----------------
- CWG-F298 Test I (CWG-E113)
- CWG-F298 Test J (CWG-F168)
- CWG-F298 Test K (CWG-F215)
- CWG-F298 Test N (one aspect of CWG-F243)
- CWG-F298 Test O (one aspect of CWG-F243)
- CWG-F298 Test P (one aspect of CWG-F260)
- CWG-F298 Test Q (CWG-F253)
- CWG-F301 "Optionally One-Byte OBU Header"  (Includes CWG-F159)
- CWG-F311 "Splitting qm_params() Out of quantization_params()"
- CWG-F313 "user_defined_qm() should update quant if qm_8x8_is_symmetric is 1"
- CWG-F261 "Improvement of BRU High Level Syntax"
- CWG-F307 "Add sequence level flag for CfL on top of CWG-F252"
- Move obu_extension_flag to most significant bit
- Change obu_type and obu_tlayer_id to f(5) and f(2)

Encoder-only Improvements (Non-normative)
-----------------------------------------
- CWG-F222 "Enabling global Intra-BC in key-frames of natural content coding"
- CWG-F279 "Pyramid Quantization Offsets Adjustment for AVM in RA mode"

Encoder / Decoder Speedups (Non-normative)
------------------------------------------
- Enable multi-threading for sub-PU deblocking
- CWG-E158 "Encoder speed up using ML-based Partition Pruning, inter frames, improvements"  (off by default)
- CWG-F230 "Software Decoder Speed Optimizations"
- Non-normative decoder speed optimizations
- Initialize quantization matrix only when it is used

Code Cleanups
-------------
- Removal of Compile-time Macros (CWG-F234)
- Addition of Run-time flags for skip mode and transform partitioning

Gitlab CI Improvements
----------------------
- Fix code coverage report generation
- When building documentation, treat warnings as errors
- Update to GCC 14 and LLVM 18
- Run unit tests under memory sanitizer

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/15#tab-issues

  • research-v11.0.0-rc1

    fafa7128 · Improve comment for aom_decode_frame_from_obus() · 
    Release candidate #1 for Research-v11.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-F141 Part 1 "Removal of AV1 Separable Wiener filter"
- CWG-F176 "CCSO reuse reference frame index signaling improvement"
- CWG-D130 "Quantization Matrices Coding for AV2"
- CWG-F195 "Warp parameter range clamp unification"
- CWG-F164 "Intra SDP logic simplification"
- CWG-F185 "Only write TMVP MVs once"
- CWG-F183 "Enhanced parsing dependency removal and simplification of skip mode"
- CWG-F157 "On addressing SDP-CFL latency"
- CWG-F192 "Improved TIP Frame Filtering"
- CWG-F196 "Disable DMVR in TIP-direct frame build"
- CWG-F135 "Chroma Extension of CWG-F110 (Lossless Transform Coding)"
- CWG-F184 "Context Modeling Line Buffer Reduction"
- CWG-F216 "Simplification of Warp Reference List (WRL) for All Warp Modes"
- CWG-F242 "Optimized Signaling of Quantization Matrices"
- CWG-F142 "Extension of the Motion Vector Range"
- CWG-F203 "Context Reduction of CCTX"
- CWG-F107 "Fix OPFL issues and remove DAMR"
- CWG-F063 "Add partition block aspect ratio constraint"
- CWG-F236 "Extend TCQ to All Frames"
- CWG-F139 "Removal of Filter-Intra Prediction Mode"
- CWG-F129 "WRL Improvements"
- CWG-F194 "Optimized Signaling of Global Motion Vector for TIP Direct Output Mode"
- CWG-F182 "Addressing chroma prediction type delay in chroma merge area"
- CWG-F170 "Bugfix for optical flow refinement auto mode"
- CWG-F137 "Simplification for Blending Mode"
- CWG-F226 "Context reductions for Palette mode"
- CWG-F177 "IntraBC Local Search Range Alignment" (Method B)
- CWG-F193 "Bugfix for warp causal mode" (Method 2)
- CWG-F247 "Warp Extend Simplification" (Method 1)
- CWG-F240 "Coding Tools for Picture Resizing Mode"
- CWG-F141 Part 2 "Removal of AV1 Self-Guided Filter"
- CWG-F208 "Enable Local Compound Warp Mode for AVM-v11" (Test 3.2 + no line buffer increase)
- CWG-F249 "On Writing Delay Mechanism of Global IntraBC" (Method 2)
- CWG-F246 "Adaptive optical flow based motion vector refinement in TIP-direct mode"
- CWG-F218 "Results of the FG8 activity on context modeling simplifications" (CT8)
- CWG-F124 "CCSO Clean Up"
- CWG-F165 "Improvement for IntraBC in key frames" (Test 2 +  check the local IBC range with BAWP)
- CWG-F187 "Guided Detail Filter: Improvements" (Test 3)
- CWG-F206 "On Dynamic Reference List (DRL) size"
- CWG-F258 "Add a reduced ref_frame_mvs mode sequence flag"
- CWG-F302 "Reduction of Optical Flow Multiplications"
- CWG-F280 "Removal of WARPMV WARP_CAUSAL"
- CWG-F268 "Low-level changes for Multilayer Coding in AV2"
- CWG-F262 "Larger Identity Transforms for Lossless Coding"
- CWG-F241 "Dynamic Reference List (DRL) Pruning Limitation"
- CWG-F238 "On frame MV precision" (Test1)
- CWG-F202 "Simplification for ORIP"
- CWG-F303 "On Division Handling" (Aspect 1 and 4)
- CWG-F140 "Extension to reduced transform set" (set 1, 2 and 4)
- CWG-F297 "Guided Detail Filter: Improvements 2" (Aspects 1, 2 and 3)
- CWG-F283 "Deblocking Filter Chroma Line Buffer Fix"
- CWG-F285 "Parsing Dependency Reduction for Warp Causal mode"
- CWG-F252 "Reference Sample Reduction and Sequence Level Flag Addition for MHCCP" (Aspect 1 + 2 + issue fix, All chroma formats)
- CWG-F171 "Parsing dependency removal for coefficient related syntax" (retrained param version)
- CWG-F079 "Film grain synthesis improvements for AVM"  (64x64 template + switch between 16x16/32x32 block size)
- CWG-F278 "Flexible TIP block size decision"
- CWG-F235 "Remove Palette Mode for Chroma"
- CWG-F300 "Switchable Residual Coding for Identity Transform (IDTX)/Forward Skip Coding (FSC) Mode"
- CWG-F271 "On Reference Ranking in Resize Mode"
- CWG-F069 "On the Maximum Number of Segments"
- CWG-F290 "Further simplifications to TMVP and MV trajectory"
- CWG-F315 "Signaling improvements for max_drl_bits in frame header"
- CWG-F296 "On Block Partition Entropy Context Line Buffer"
- CWG-F178 "Large Transform for Chroma" (Test 0e,1e)
- CWG-F143 "Adaptive wedge boundary" (Scheme 1)
- CWG-F191 "Symbol size reduction for intra mode, EOB and inter transform type signaling"
- CWG-F273 "Reduced Transform Block Partition"
- CWG-F266 "On 64-Point Transform"  (off by default)
- CWG-F284 "Deblocking DQP control" (off by default)
- CWG-F287 "Extended motion vector predictor"
- CWG-F265 "On disabling loop-filters across tile-boundaries and for lossless segments" (off by default)
- CWG-F332 "On 64x64 Transform Block Coding Order" (off by default)

High-level Syntax
-----------------
- CWG-F298 Test I (CWG-E113)
- CWG-F298 Test J (CWG-F168)
- CWG-F298 Test K (CWG-F215)
- CWG-F298 Test N (one aspect of CWG-F243)
- CWG-F298 Test O (one aspect of CWG-F243)
- CWG-F298 Test P (one aspect of CWG-F260)
- CWG-F298 Test Q (CWG-F253)
- CWG-F301 "Optionally One-Byte OBU Header"  (Includes CWG-F159)
- CWG-F311 "Splitting qm_params() Out of quantization_params()"
- CWG-F313 "user_defined_qm() should update quant if qm_8x8_is_symmetric is 1"
- CWG-F261 "Improvement of BRU High Level Syntax"
- CWG-F307 "Add sequence level flag for CfL on top of CWG-F252"
- Move obu_extension_flag to most significant bit
- Change obu_type and obu_tlayer_id to f(5) and f(2)

Encoder-only Improvements (Non-normative)
-----------------------------------------
- CWG-F222 "Enabling global Intra-BC in key-frames of natural content coding"
- CWG-F279 "Pyramid Quantization Offsets Adjustment for AVM in RA mode"

Encoder / Decoder Speedups (Non-normative)
------------------------------------------
- Enable multi-threading for sub-PU deblocking
- CWG-E158 "Encoder speed up using ML-based Partition Pruning, inter frames, improvements"  (off by default)
- CWG-F230 "Software Decoder Speed Optimizations"
- Non-normative decoder speed optimizations

Code Cleanups
-------------
- Removal of Compile-time Macros (CWG-F234)
- Addition of Run-time flags for skip mode and transform partitioning

Gitlab CI Improvements
----------------------
- Fix code coverage report generation
- When building documentation, treat warnings as errors
- Update to GCC 14 and LLVM 18
- Run unit tests under memory sanitizer

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/15#tab-issues

  • research-v10.0.1

    fb5e5715 · bitstream.c: Remove duplicate av1/common/blockd.h · 
    Minor release including following bugfixes on top of v10.0.0.

https://gitlab.com/AOMediaCodec/avm/-/milestones/14#tab-issues

  • research-v10.0.0

    331ab629 · CI: Use `--psnr` arg for all `Enc Run` jobs · 
    Research-v10.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-F009: No-show key frame and key overlay frame
- CWG-E255: IDIF Intra Directional Interpolation Filter Fix
- CWG-F017: Redesign of the warp mode signaling flow
- CWG-F018: CDEF Enhancements
- CWG-F008: Enabling in-loop filtering with global intra-block-copy
  (Intra-BC)
- CWG-F019: Simplification of luma downsampling in the CFL mode
- CWG-F052: Remove OBMC
- CWG-F055: Non-separable luma wiener filters with 9x9 support (16-tap)
- CWG-F037: CDF Scaling Improvement
- CWG-F035: Disable IBP and ORIP for 4x4 only
- CWG-F034: Multiple Reference Line Selection (MRLS) Improvement (Test3)
- CWG-F057: On Flexible Control of the Deblocking Parameter Bit Depth
- CWG-F075: TMVP Motion Vector Memory Reduction
- CWG-F007: Improved scanning order for DRL list generation
- CWG-F050: DRL and WRL Line Buffer Reduction
- CWG-F045: Improved frame context initialization
- CWG-F086: Simplify MHCCP convolve
- CWG-F072: Improved Primary Reference Frame Selection
- CWG-F021: MHCCP design for superblock boundary
- CWG-F105: Combination of CWG-F012 and CWG-F056 for IST memory
  reduction
- CWG-F033: Disable Inter Modes for 4x4 Partition Blocks
- CWG-F089: Delta-q Entropy Coding Optimization
- CWG-F080: Transform Partition Restriction and Encoder Speed-up
- CWG-F064: Improvements in refined MVs and EXT-WARP
- CWG-F065: Modification of DMVR search points
- CWG-F076: Simplifications for context modeling: A data-driven approach
  (Test 1 and Test 3)
- CWG-F084: Simplifications for intra BAWP (Aspect 1)
- CWG-E229: Sample reduction for MHCCP model derivation
- CWG-F069: On the Maximum Number of Segments
- CWG-F115: Table size reduction for CCSO
- CWG-F044: On warp mode of AVM (disabled in LD)
- CWG-F120: On Intra Bi-Prediction
- CWG-E230: On Core Transform for AV2
- CWG-F101: On luma downsampling of cross-plane wiener restoration
  filter
- CWG-F092: TMVP Simplification (Test2)
- CWG-F113: Improvements for MHCCP
- CWG-F061: Symbol size reduction for wedge angle and joint shell class
  signaling
- CWG-F059: Re-Design of Partition Symbol Context Models
- CWG-F111: On DAMR Memory Bandwidth
- CWG-F068: Bugfix of CCSO filtering unit size for 4:2:2 and 4:4:4
- CWG-D181: On block-adaptive weighted prediction for across scale
  prediction (BAWP + RPR disabled by default)
- CWG-F130: Bugfix for Local IntraBC Search Range under non Common Test
  Condition
- CWG-E121: Enhancements of reference frame list construction for
  temporal scalability
- CWG-F121: Simplification for IDIF (Test 2)
- CWG-F085: Improvements to motion vector trajectory tracking
- CWG-F099: Modified deblocking filter for AVM
- CWG-F128: Context Model Optimization for Optical Flow Refinement Flag
- CWG-F096: Removal of Super Resolution Mode
- CWG-F144: On the Interaction Between Uneven Transform Partitioning and
  Sub-Block Deblocking
- CWG-F087: Precision Adjustment and Retraining for RESTORE_PC_WIENER
- CWG-F116: Improvements in storing MVs for TMVP list
- CWG-F051: TIP Simplification
- CWG-F146: Transform partition type replacement
- CWG-F088: MHCCP with 3 Parameters
- CWG-F078: Inter coding mode redesign and consolidation
- CWG-F127: Reduction of CDFs of MVD coding
- CWG-E254: TIP Enhancement
- CWG-F093: Improvements to Data-Driven Intra Prediction
- CWG-F043: Improved SMVP for TIP mode candidates
- CWG-F082: Extended DPB mode for AV2 in RTC
- CWG-F119: On skip mode parsing dependency
- CWG-F054: Picture boundary handling for loop filtering (HW SG
  recommended version)
- CWG-F110: Enhanced Transform Coding for Lossless AVM (Aspects 1 and 2
  with Option 1)
- CWG-F112: Amendment to EXT_QUANT:  Add seq-level base uv ac offset and
  misc flags
- CWG-E206: Guided Detail Filter - r3
- CWG-E127: BRU: Backward Reference Updating for Ultra Low Latency Video
  Coding

Other Normative Changes
-----------------------
- Enable virtual line buffer for cross-component non-separable wiener
  filter
- CWG-E066: Interleaved parsing at 64x64 level with SDP in key frames
  (missing part from previous cycle)

Encoder-only Improvements (Non-normative)
-----------------------------------------
- CWG-F002: Intra-BC decision bug fix for natural content
- CWG-E251: An encoder side improvement for extended SDP
- Disable frame averaging and enable tile averaging for context
  initialization when the number of tiles is 2.
- Fix bug disabling PC_WIENER in search_pc_wiener_visitor.
- CWG-F136: TCQ Improvements
- CWG-F163: CTC for AVM resize-mode

Encoder / Decoder Speedups (Non-normative)
------------------------------------------
- SIMD for DIP
- Speed-up decoder by optimizing refinemv_highbd_pad_mc_border function
- CWG-F049: AVM v9 encoder and decoder optimizations
- CWG-F073: Improved model RD based transform pruning of inter modes
- CWG-F118: Inter mode evaluation optimization
- CWG-F011: Simplification of Palette Mode (Aspect 1)
- CWG-F046: Encoder speed up using ML-based Partition Pruning,
  additional speedup

Code Cleanups
-------------
- CWG-F094 Research v10.0.0 anchor:  Removal and Merging of Compile Time
  Flags
- Suppress TFLite compile time warnings
- Suppress TFLite runtime logs

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/13#tab-issues

  • research-v10.0.0-rc1

    c9e28fd9 · ForwardKeyTestLarge: tweak PSNR threshold · 
    Release candidate #1 for Research-v10.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-F009: No-show key frame and key overlay frame
- CWG-E255: IDIF Intra Directional Interpolation Filter Fix
- CWG-F017: Redesign of the warp mode signaling flow
- CWG-F018: CDEF Enhancements
- CWG-F008: Enabling in-loop filtering with global intra-block-copy (Intra-BC)
- CWG-F019: Simplification of luma downsampling in the CFL mode
- CWG-F052: Remove OBMC
- CWG-F055: Non-separable luma wiener filters with 9x9 support (16-tap)
- CWG-F037: CDF Scaling Improvement
- CWG-F035: Disable IBP and ORIP for 4x4 only
- CWG-F034: Multiple Reference Line Selection (MRLS) Improvement (Test3)
- CWG-F057: On Flexible Control of the Deblocking Parameter Bit Depth
- CWG-F075: TMVP Motion Vector Memory Reduction
- CWG-F007: Improved scanning order for DRL list generation
- CWG-F050: DRL and WRL Line Buffer Reduction
- CWG-F045: Improved frame context initialization
- CWG-F086: Simplify MHCCP convolve
- CWG-F072: Improved Primary Reference Frame Selection
- CWG-F021: MHCCP design for superblock boundary
- CWG-F105: Combination of CWG-F012 and CWG-F056 for IST memory reduction
- CWG-F033: Disable Inter Modes for 4x4 Partition Blocks
- CWG-F089: Delta-q Entropy Coding Optimization
- CWG-F080: Transform Partition Restriction and Encoder Speed-up
- CWG-F064: Improvements in refined MVs and EXT-WARP
- CWG-F065: Modification of DMVR search points
- CWG-F076: Simplifications for context modeling: A data-driven approach (Test 1 and Test 3)
- CWG-F084: Simplifications for intra BAWP
(Aspect 1)
- CWG-E229: Sample reduction for MHCCP model derivation
- CWG-F069: On the Maximum Number of Segments
- CWG-F115: Table size reduction for CCSO
- CWG-F044: On warp mode of AVM (disabled in LD)
- CWG-F120: On Intra Bi-Prediction
- CWG-E230: On Core Transform for AV2
- CWG-F101: On luma downsampling of cross-plane wiener restoration filter
- CWG-F092: TMVP Simplification (Test2)
- CWG-F113: Improvements for MHCCP
- CWG-F061: Symbol size reduction for wedge angle and joint shell class signaling
- CWG-F059: Re-Design of Partition Symbol Context Models
- CWG-F111: On DAMR Memory Bandwidth
- CWG-F068: Bugfix of CCSO filtering unit size for 4:2:2 and 4:4:4
- CWG-D181: On block-adaptive weighted prediction for across scale prediction (BAWP + RPR disabled by default)
- CWG-F130: Bugfix for Local IntraBC Search Range under non Common Test Condition
- CWG-E121: Enhancements of reference frame list construction for temporal scalability
- CWG-F121: Simplification for IDIF (Test 2)
- CWG-F085: Improvements to motion vector trajectory tracking
- CWG-F099: Modified deblocking filter for AVM
- CWG-F128: Context Model Optimization for Optical Flow Refinement Flag
- CWG-F096: Removal of Super Resolution Mode
- CWG-F144: On the Interaction Between Uneven Transform Partitioning and Sub-Block Deblocking
- CWG-F087: Precision Adjustment and Retraining for RESTORE_PC_WIENER
- CWG-F116: Improvements in storing MVs for TMVP list
- CWG-F051: TIP Simplification
- CWG-F146: Transform partition type replacement
- CWG-F088: MHCCP with 3 Parameters
- CWG-F078: Inter coding mode redesign and consolidation
- CWG-F127: Reduction of CDFs of MVD coding
- CWG-E254: TIP Enhancement
- CWG-F093: Improvements to Data-Driven Intra Prediction
- CWG-F043: Improved SMVP for TIP mode candidates
- CWG-F082: Extended DPB mode for AV2 in RTC
- CWG-F119: On skip mode parsing dependency
- CWG-F054: Picture boundary handling for loop filtering (HW SG recommended version)
- CWG-F110: Enhanced Transform Coding for Lossless AVM (Aspects 1 and 2 with Option 1)
- CWG-F112: Amendment to EXT_QUANT:  Add seq-level base uv ac offset and misc flags
- CWG-E206: Guided Detail Filter - r3
- CWG-E127: BRU: Backward Reference Updating for Ultra Low Latency Video Coding

Other Normative Changes
-----------------------
- Enable virtual line buffer for cross-component non-separable wiener filter
- CWG-E066: Interleaved parsing at 64x64 level with SDP in key frames (missing part from previous cycle)

Encoder-only Improvements (Non-normative)
-----------------------------------------
- CWG-F002: Intra-BC decision bug fix for natural content
- CWG-E251: An encoder side improvement for extended SDP
- Disable frame averaging and enable tile averaging for context initialization when the number of tiles is 2.
- Fix bug disabling PC_WIENER in search_pc_wiener_visitor.
- CWG-F136: TCQ Improvements
- CWG-F163: CTC for AVM resize-mode

Encoder / Decoder Speedups (Non-normative)
------------------------------------------
- SIMD for DIP
- Speed-up decoder by optimizing refinemv_highbd_pad_mc_border function
- CWG-F049: AVM v9 encoder and decoder optimizations
- CWG-F073: Improved model RD based transform pruning of inter modes
- CWG-F118: Inter mode evaluation optimization
- CWG-F011: Simplification of Palette Mode (Aspect 1)
- CWG-F046: Encoder speed up using ML-based Partition Pruning, additional speedup

Code Cleanups
-------------
- Suppress TFLite compile time warnings

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/13#tab-issues

  • research-alt-v1-anchor_r4.0

    0418e06c · Enable more intra mode search · 
    research anchor v1 release 4

Contains the following changes on top of v1 release 3:
- CWG-E191: Filling residual pixels outside the actual frame border
- CWG-E171: Enable more intra mode research

  • research-v9.0.0

    6fa0d27c · Fix TCQ assertion failure in windows VS · 
    Research-v9.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
CWG-E103: Move max frame width/height,color_config() forward
CWG-E156: CCSO with filter shapes
CWG-E149: MHCCP using 4 parameters
CWG-E168: Sub-pixel block vector for intraBC mode
CWG-E157: Align Deblocking Filter Boundaries With AVM Partitioning Scheme
CWG-E176: CCSO improvements
CWG-E182: Simplification of IBP DC mode
CWG-E153: Simplification for AIMC
CWG-E180: Context model optimization
CWG-E194: Secondary transforms with flexible support regions (Test 3) + 
CWG-E124: Complexity Reduction for Secondary Transforms (method 4 on + method 1 off by default)
CWG-E160: Simplification of Warp Reference List (WRL)
CWG-E140: Unify parameter computation in least square fitting
CWG-E159: DRL Improvements and Reorder Control Flag
CWG-E197: Bugfix for the signaling of transform partition types
CWG-E203: Improved Frame Context Finalization for Tile-Based Coding
CWG-E239: Adaptation rate improvement with CDF propagation
CWG-E192: Explicitly Signaled Frame-Level Non-separable Wiener Filters for Chroma
CWG-E119: Memory Reduction for RefMV Bank
CWG-E193: On Precision of Inverse DDT
CWG-E210: Context Reduction for Rectangle Partition Type
CWG-E227: Optimization of Frame Level Syntax Elements Signaling
CWG-E236: Extensive warp prediction filters
CWG-E215: Data-driven Intra Prediction
CWG-E225: Wedge Mode Simplifications
CWG-E238: Improved Partition Signaling at Frame Boundary and RDO Fixes
CWG-E235: Warp-delta mode improvement
CWG-E211: Simplification for Sub-block motion refinement
CWG-E245: BAWP Block adaptive local weighted prediction
CWG-E228: Support TIP in Low Delay
CWG-E205: A Simplification for Chroma Transform (Disabled by default)
CWG-E209 + E233: Improved signaling for compound inter prediction mode
CWG-E188: Enhanced frame context initialization
CWG-E151: IST improvement + CWG-E142: Non-normative speedup for IST
CWG-E204: Memory Bandwidth Improvement for MV Refinement Methods +
CWG-E226: 4x4 Warp Mode Constraints
CWG-E092: Trellis Coded Quantization (8-state frame-adaptive)

Encoder-only Changes
--------------------
CWG-E171: Intra mode search adjustment #
CWG-E186: Improve CDEF frame-level enabling decision
CWG-E207: Encoder and decoder optimizations
CWG-E191: Outside-frame-border block prediction and residual handling #
CWG-E221: Improvement for deblocking filter (part 1)

Code Cleanups / Improvements
----------------------------
Fix context memory analyzer
Enable 4:2:2 and 4:4:4 chroma formats in AVM Analyzer
Mismatch debug tool: increase max frame stride and height
CWG-E120: Integrate the ParaKit training software to AVM
CWG-E237: Fixes for across scale inter prediction

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/12#tab-issues

  • research-v9.0.0-rc1

    379b6174 · Increase number of shards of address to 34 · 
    Release candidate #1 for research-v9.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
CWG-E103: Move max frame width/height,color_config() forward
CWG-E156: CCSO with filter shapes
CWG-E149: MHCCP using 4 parameters
CWG-E168: Sub-pixel block vector for intraBC mode
CWG-E157: Align Deblocking Filter Boundaries With AVM Partitioning Scheme
CWG-E176: CCSO improvements
CWG-E182: Simplification of IBP DC mode
CWG-E153: Simplification for AIMC
CWG-E180: Context model optimization
CWG-E194: Secondary transforms with flexible support regions (Test 3) + 
CWG-E124: Complexity Reduction for Secondary Transforms (method 4 on + method 1 off by default)
CWG-E160: Simplification of Warp Reference List (WRL)
CWG-E140: Unify parameter computation in least square fitting
CWG-E159: DRL Improvements and Reorder Control Flag
CWG-E197: Bugfix for the signaling of transform partition types
CWG-E203: Improved Frame Context Finalization for Tile-Based Coding
CWG-E239: Adaptation rate improvement with CDF propagation
CWG-E192: Explicitly Signaled Frame-Level Non-separable Wiener Filters for Chroma
CWG-E119: Memory Reduction for RefMV Bank
CWG-E193: On Precision of Inverse DDT
CWG-E210: Context Reduction for Rectangle Partition Type
CWG-E227: Optimization of Frame Level Syntax Elements Signaling
CWG-E236: Extensive warp prediction filters
CWG-E215: Data-driven Intra Prediction
CWG-E225: Wedge Mode Simplifications
CWG-E238: Improved Partition Signaling at Frame Boundary and RDO Fixes
CWG-E235: Warp-delta mode improvement
CWG-E211: Simplification for Sub-block motion refinement
CWG-E245: BAWP Block adaptive local weighted prediction
CWG-E228: Support TIP in Low Delay
CWG-E205: A Simplification for Chroma Transform (Disabled by default)
CWG-E209 + E233: Improved signaling for compound inter prediction mode
CWG-E188: Enhanced frame context initialization
CWG-E151: IST improvement + CWG-E142: Non-normative speedup for IST
CWG-E204: Memory Bandwidth Improvement for MV Refinement Methods +
CWG-E226: 4x4 Warp Mode Constraints
CWG-E092: Trellis Coded Quantization (8-state frame-adaptive)

Encoder-only Changes
--------------------
CWG-E171: Intra mode search adjustment #
CWG-E186: Improve CDEF frame-level enabling decision
CWG-E207: Encoder and decoder optimizations
CWG-E191: Outside-frame-border block prediction and residual handling #
CWG-E221: Improvement for deblocking filter (part 1)

Code Cleanups / Improvements
----------------------------
Fix context memory analyzer
Enable 4:2:2 and 4:4:4 chroma formats in AVM Analyzer
Mismatch debug tool: increase max frame stride and height
CWG-E120: Integrate the ParaKit training software to AVM
CWG-E237: Fixes for across scale inter prediction

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/12#tab-issues

  • research-v8.1.0

    94e97f34 · Fix the nightly test failure for sequence level down-sample filter selection · 
    Minor release including following on top of v8.0.0.

Candidate Tools
---------------
- CWG-E103: Move max frame width/height,color_config() forward

Code Cleanups / Improvements
----------------------------
- Fix context memory analyzer

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/11#tab-issues

  • research-v8.0.0

    8e0b4695 · CWG-E135 TFlite local dependencies · 
    research-v8.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-E099: Further simplify and unify the DRL and the WRL
- CWG_E084: Context model optimization
- CWG-E098: Optimize the signaling of TIP direct output mode
- CWG-E107: Enlarge max inter sdp block size to 64x64
- CWG-E112: Supports compound prediction for additional blocks
- CWG-E105: Improvements/fixes in CCTX, TX partition type in WAIP, and REFINEMV
- CWG-E109: Transform type flexibility improvements
- CWG-E134: Improvements of RefMV Bank and Warp Parameter Bank
- CWG-E106: Data-Driven Transforms for Inter Coding
- CWG-E108: Fixing line-buffer and division operation issues in the CfL mode
- CWG-E133: Simplification of Skip Mode
- CWG-E122: Enabling Intra-BC for natural content
- CWG-E136: Reducing the number of partition contexts
- CWG-E132: Further Memory Reduction for Intra Bi-Prediction (overrides previous
  proposal CWG-E094)
- CWG-E139: Improved TMVP motion vector from wedge mode blocks
- CWG-E110: Pixel-Classified Explicitly Signaled Frame-Level Non-separable
  Wiener Filters
- CWG-E115: Simplified motion trajectory tracking
- CWG-E141: Unrestricted Partitioning for 1:4 Coding Blocks
- CWG-E005: Coefficient coding improvements (Part2)
- CWG-E125: Simplifications for MHCCP
- CWG-E123: Refinements for Probability Adjustment Rate Adaptation (PARA) in
  Entropy Coding

Encoder-only Changes
--------------------
- CWG-E104: Encoder mode/transform search optimizations
- CWG-E137: Encoder optimizations at speed 0 and 1
- CWG-E135: Encoder speed up using ML-based Partition Pruning, inter frames

Code Cleanups / Improvements
----------------------------
- TFLite: Bump up version to 2.17 and enable XNNPack
- CWG-E148 Research v8.0.0 anchor: Removal and Merging of Compile Time Flags

Gitlab CI Updates
-----------------
- Gitlab CI: add build check for 2 tools that are off by default.

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/10#tab-issues

  • research-v8.0.0-rc1

    0b3d929b · Enable CWG-E135, ML based partition pruning in compile time. · 
    Release candidate #1 for research-v8.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-E099: Further simplify and unify the DRL and the WRL
- CWG_E084: Context model optimization
- CWG-E098: Optimize the signaling of TIP direct output mode
- CWG-E107: Enlarge max inter sdp block size to 64x64
- CWG-E112: Supports compound prediction for additional blocks
- CWG-E105: Improvements/fixes in CCTX, TX partition type in WAIP, and REFINEMV
- CWG-E109: Transform type flexibility improvements
- CWG-E134: Improvements of RefMV Bank and Warp Parameter Bank
- CWG-E106: Data-Driven Transforms for Inter Coding
- CWG-E108: Fixing line-buffer and division operation issues in the CfL mode
- CWG-E133: Simplification of Skip Mode
- CWG-E122: Enabling Intra-BC for natural content
- CWG-E136: Reducing the number of partition contexts
- CWG-E132: Further Memory Reduction for Intra Bi-Prediction (overrides previous
  proposal CWG-E094)
- CWG-E139: Improved TMVP motion vector from wedge mode blocks
- CWG-E110: Pixel-Classified Explicitly Signaled Frame-Level Non-separable
  Wiener Filters
- CWG-E115: Simplified motion trajectory tracking
- CWG-E141: Unrestricted Partitioning for 1:4 Coding Blocks
- CWG-E005: Coefficient coding improvements (Part2)
- CWG-E125: Simplifications for MHCCP
- CWG-E123: Refinements for Probability Adjustment Rate Adaptation (PARA) in
  Entropy Coding

Encoder-only Changes
--------------------
- CWG-E104: Encoder mode/transform search optimizations
- CWG-E137: Encoder optimizations at speed 0 and 1
- CWG-E135: Encoder speed up using ML-based Partition Pruning, inter frames

Code Cleanups / Improvements
----------------------------
- TFLite: Bump up version to 2.17 and enable XNNPack

Gitlab CI Updates
-----------------
- Gitlab CI: add build check for 2 tools that are off by default.

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/10#tab-issues

  • research-v7.0.1

    6518d8e8 · Gitlab CI: add build check for 2 tools that are off by default. · 
    Minor release including following bug fixes on top of v7.0.0.

- Data race in aom_highbd_upsampled_pred_sse2:
  https://gitlab.com/AOMediaCodec/avm/-/issues/399
- Compile failure with CONFIG_ML_PART_SPLIT on:
  https://gitlab.com/AOMediaCodec/avm/-/issues/401
- Compile failure with CONFIG_BAWP_ACROSS_SCALES_FIX on:
  https://gitlab.com/AOMediaCodec/avm/-/issues/400

  • research-v7.0.0

    700b1c2b · Move allocation of pred buffer in upsampled_pref_error() · 
    research-v7.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-D181: Fix on BAWP across scales prediction
            (Disabled by default)
- CWG-D171: Low Complexity Chroma Coding
- CWG-D172: Partitioning for 1:4 Coding Blocks
- CWG-D192: Probability Model Training for Entropy Coding
- CWG-E007: merge the prediction steps for TIP reference mode
- CWG-E014: MVD coding
- CWG-E009: Quick fix of CWG-D149 and CWG-D166 integration
- CWG-D146: Quantization Matrix Simplification
- CWG-E005: Coefficient coding improvements
- CWG-E016: Unification of Cross-Plane Wiener Filters +
- CWG-E048: Optimizations to Non-Separable Wiener Filter
- CWG-E021: Simplification of Motion Vector Prediction List Construction
- CWG-E062: On block size restriction for Chroma-from-Luma prediction modes
- CWG-E049: Improvements on Identity Transform Coding
- CWG-E039: Wide Angular Intra Prediction
- CWG-E006: Linear intra prediction with matched reference templates
            (Global IBC only)
- CWG-E067: Improvement of TMVP
- CWG-E031: Bilinear interpolation for DAMR and OPFL
- CWG-E066: Addressing latency issue in SDP
- CWG-E060: On removing blocking artifacts in sub-prediction blocks
- CWG-E029: Signaling Bugfix of CCSO with Band Offset Only
- CWG-D178: Improved Lossless Coding for AVM
- CWG-E052: Complexity Reduction of Optical Flow and Affine Motion Refinement
            (aspects 2, 3 and 5)
- CWG-E055: Transform partition improvements
- CWG-E056: Enhancement of the frame output process (Overlay frames fix only)
            (overlay frames disabled by default)
- CWG-D185: Extended MV Refinement Search
- CWG-E030: Downsampling for Subblock-Based MV Refinement Search
- CWG-E065: Subblock-Level Padding for Subblock MV Refinement
- CWG-E019: Simplification of Motion Field Hole Filling
            (Aspect #1: change hole filling to 128x128 based)
- CWG-E038: On parsing dependency in intra transform signaling
- CWG-D191: Inter IST
- CWG-E023: SDP extension

Encoder-only Changes
--------------------
- CWG-E028: Context used in rate estimation fix
- CWG-E044: Disable Filter-Intra Prediction Mode
- Encoder-only Improvements for prune_ref_frames speed feature
- CWG-E070: Encoder speed up using ML-based Partition Pruning
            (Disabled by default)

Code Cleanups / Improvements
----------------------------
- CWG-E010: AVM Analyzer
- Accounting/throughput code: support for computing CDF switch counts
- Encoder Memory Reductions (Bit-exact)
- Encoder Speed Optimizations (Bit-exact)

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/9#tab-issues

Gitlab CI Updates
-----------------
- Gitlab CI: Enable assertions

  • research-v7.0.0-rc1

    985127d9 · CWG-E023 (SDP extension) · 
    Release candidate #1 for research-v7.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-D181: Fix on BAWP across scales prediction
            (Disabled by default)
- CWG-D171: Low Complexity Chroma Coding
- CWG-D172: Partitioning for 1:4 Coding Blocks
- CWG-D192: Probability Model Training for Entropy Coding
- CWG-E007: merge the prediction steps for TIP reference mode
- CWG-E014: MVD coding
- CWG-E009: Quick fix of CWG-D149 and CWG-D166 integration
- CWG-D146: Quantization Matrix Simplification
- CWG-E005: Coefficient coding improvements
- CWG-E016: Unification of Cross-Plane Wiener Filters +
- CWG-E048: Optimizations to Non-Separable Wiener Filter
- CWG-E021: Simplification of Motion Vector Prediction List Construction
- CWG-E062: On block size restriction for Chroma-from-Luma prediction modes
- CWG-E049: Improvements on Identity Transform Coding
- CWG-E039: Wide Angular Intra Prediction
- CWG-E006: Linear intra prediction with matched reference templates
            (Global IBC only)
- CWG-E067: Improvement of TMVP
- CWG-E031: Bilinear interpolation for DAMR and OPFL
- CWG-E066: Addressing latency issue in SDP
- CWG-E060: On removing blocking artifacts in sub-prediction blocks
- CWG-E029: Signaling Bugfix of CCSO with Band Offset Only
- CWG-D178: Improved Lossless Coding for AVM
- CWG-E052: Complexity Reduction of Optical Flow and Affine Motion Refinement
            (aspects 2, 3 and 5)
- CWG-E055: Transform partition improvements
- CWG-E056: Enhancement of the frame output process (Overlay frames fix only)
            (overlay frames disabled by default)
- CWG-D185: Extended MV Refinement Search
- CWG-E030: Downsampling for Subblock-Based MV Refinement Search
- CWG-E065: Subblock-Level Padding for Subblock MV Refinement
- CWG-E019: Simplification of Motion Field Hole Filling
            (Aspect #1: change hole filling to 128x128 based)
- CWG-E038: On parsing dependency in intra transform signaling
- CWG-D191: Inter IST
- CWG-E023: SDP extension

Encoder-only Changes
--------------------
- CWG-E028: Context used in rate estimation fix
- CWG-E044: Disable Filter-Intra Prediction Mode
- Encoder-only Improvements for prune_ref_frames speed feature
- CWG-E070: Encoder speed up using ML-based Partition Pruning
            (Disabled by default)

Code Cleanups / Improvements
----------------------------
- CWG-E010: AVM Analyzer
- Accounting/throughput code: support for computing CDF switch counts
- Encoder Memory Reductions (Bit-exact)
- Encoder Speed Optimizations (Bit-exact)

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/9#tab-issues

  • research-v6.1.0

    de986bff · av1_determine_sc_tools_with_encoding: reorder initialization · 
    research-v6.1.0 minor release.

Includes the following changes since research-v6.0.0 anchor:

Candidate Tools
---------------
- CWG-D181: Fix on BAWP across scales prediction (off by default)
- CWG-D171: Low Complexity Chroma Coding
- CWG-D172: Partitioning for 1:4 Coding Blocks
- CWG-D192: Probability Model Training for Entropy Coding

Code Cleanups / Improvements
----------------------------
- CWG-E010: AVM Analyzer
- Misc memory reductions

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/8#tab-issues

  • research-alt-v1-anchor_r3.0

    9ee9eb7f · Add support for PSNR calculation based on stream bit-depth · 
    research anchor v1 release 3

Contains the following changes on top of v1 release 2:
- CWG-D098: Temporal filtering improvement
- CWG-D082: Screen content options determination improvement
- CWG-D088: Coding 8-bit Video using 10-bit
- Bugfixes to support CTCv6 and other fixes.

  • research-v6.0.0

    b22a8f6c · Add support for PSNR calculation based on stream bit-depth · 
    research-v6.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-D014: Frame output process based on order hint information (Enable by
            default)
- CWG-D096: Explicit signaling of a secondary transform set
- CWG-D117: Improvement of transform partition context modeling
- CWG-D009: ADST types replacement
- CWG-D048: Explicit BAWP (Disabled by default)
- CWG-D078: BLOCK_256 Partitions
- CWG-D068: Rectangular 1:8 and 1:16 blocks
- CWG-D089: Improved Chroma Transform Coefficient Coding
- CWG-D049: Joint Chroma-luma optimization for BAWP
- CWG-D094: Adaptive Edge Classifier for CCSO
- CWG-D070: On Block Vector Predictor List Size of IntraBC
- CWG-D115: PARA: Probability Adaptation Rate Adjustment for Entropy Coding
- CWG-D138: Retrained IST Kernels
- CWG-D132: Improvement of Inter-intra Mode of AVM
- CWG-D145: Selecting and signaling of the primary reference frame
- CWG-D067: Improved warp motion of AVM - Aspect 3
- CWG-D044: Refresh frame flags signaling (Disabled by default)
- CWG-D149: Improvement in Entropy Context Model
- CWG-D159: R-D Optimized IST Set Selection
- CWG-D042: Chroma Prediction Mode Signaling
- CWG-D072: Improvements of Skip Mode
- CWG-D153: Improvements of Compound Prediction with Same Reference Frames
            (aspects 1,2,3 and 6)
- CWG-D063: Frame Level Motion Vector for TIP Direct Mode
- CWG-D143: CCSO with Joint Enabling Flag
- CWG-D165: Disable OBMC
- CWG-D118: Multi-hypothesis Cross Component Intra Prediction
- CWG-D161: EOB Position Coding for Luma
- CWG-D144: CCSO with Band Offset Only Option
- CWG-D097: Improvement of cross-component Wiener filter for chroma components
- CWG-D086: Context modeling for transform block zero flag signaling
- CWG-D155: TIP Mode with Implicit Quantization Indices
- CWG-D166: Compound warp prediction for AVM (Extend WARP_CAUSAL to NEW_NEWMV)
- CWG-D114: Palette Line Copy
- CWG-D084: Decoder Side Affine Motion Refinement (including baseline change)

Encoder-only Changes
--------------------
- CWG-D090: Mean-removed SSE (Disabled by default)
- CWG-D098: Temporal filtering improvement
- CWG-D082: Screen content options determination improvement
- CWG-D088: Coding 8-bit Video using 10-bit
- CWG-D093: Enable transform partition search for inter blocks of size 16x16 and
            smaller
- CWG-D136: Optical flow based MV Search

Code Cleanups / Improvements
----------------------------
- CWG-D123: AVM Inspection and Analysis (core tooling)
- CWG-D160: Removal and Merging of Compile Time Flags
- Heap Memory for encoder and decoder
- CWG-D182: An Entropy Coding Memory Analyzer for AVM

Gitlab CI Updates
-----------------
- Upgrade LLVM Version to 15
- Upgrade GCC Version to 12

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/7#tab-issues

  • research-v6.0.0-rc1

    e9e5e10d · Fix multiple issues in D118 (MHCCP) · 
    Release candidate #1 for research-v6.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-D014: Frame output process based on order hint information (Enable by
            default)
- CWG-D096: Explicit signaling of a secondary transform set
- CWG-D117: Improvement of transform partition context modeling
- CWG-D009: ADST types replacement
- CWG-D048: Explicit BAWP (Disabled by default)
- CWG-D078: BLOCK_256 Partitions
- CWG-D068: Rectangular 1:8 and 1:16 blocks
- CWG-D089: Improved Chroma Transform Coefficient Coding
- CWG-D049: Joint Chroma-luma optimization for BAWP
- CWG-D094: Adaptive Edge Classifier for CCSO
- CWG-D070: On Block Vector Predictor List Size of IntraBC
- CWG-D115: PARA: Probability Adaptation Rate Adjustment for Entropy Coding
- CWG-D138: Retrained IST Kernels
- CWG-D132: Improvement of Inter-intra Mode of AVM
- CWG-D145: Selecting and signaling of the primary reference frame
- CWG-D067: Improved warp motion of AVM - Aspect 3
- CWG-D044: Refresh frame flags signaling (Disabled by default)
- CWG-D149: Improvement in Entropy Context Model
- CWG-D159: R-D Optimized IST Set Selection
- CWG-D042: Chroma Prediction Mode Signaling
- CWG-D072: Improvements of Skip Mode
- CWG-D153: Improvements of Compound Prediction with Same Reference Frames
            (aspects 1,2,3 and 6)
- CWG-D063: Frame Level Motion Vector for TIP Direct Mode
- CWG-D143: CCSO with Joint Enabling Flag
- CWG-D165: Disable OBMC
- CWG-D118: Multi-hypothesis Cross Component Intra Prediction
- CWG-D161: EOB Position Coding for Luma
- CWG-D144: CCSO with Band Offset Only Option
- CWG-D097: Improvement of cross-component Wiener filter for chroma components
- CWG-D086: Context modeling for transform block zero flag signaling
- CWG-D155: TIP Mode with Implicit Quantization Indices
- CWG-D166: Compound warp prediction for AVM (Extend WARP_CAUSAL to NEW_NEWMV)
- CWG-D114: Palette Line Copy
- CWG-D084: Decoder Side Affine Motion Refinement (including baseline change)

Encoder-only Changes
--------------------
- CWG-D090: Mean-removed SSE (Disabled by default)
- CWG-D098: Temporal filtering improvement
- CWG-D082: Screen content options determination improvement
- CWG-D088: Coding 8-bit Video using 10-bit
- CWG-D093: Enable transform partition search for inter blocks of size 16x16 and
            smaller
- CWG-D136: Optical flow based MV Search

Code Cleanups / Improvements
----------------------------
- CWG-D123: AVM Inspection and Analysis (core tooling)

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/7#tab-issues

  • research-v5.0.0

    ca0e5fd3 · Fix compile flag names in CONFIG_ENTROPY_STATS · 
    research-v5.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-D026: Temporal motion projection improvements
- CWG-D016: Improved angular intra prediction modes
- CWG-D020: Improved Signaling Scheme for ERP
- CWG-D045: Prediction Mode Dependent Skip Transform
- CWG-D023: DC-based TX Restriction and EOB Alignment
- CWG-D047: Add by-pass check in deblocking strength decision
- CWG-D027: compound weighted prediction
- CWG-D043: Bug Fix for H-Partitions
- CWG-D010 + CWG-D052: Non-separable wiener filter improvements
- CWG_D041: Extended Intra Prediction Angles
- CWG-D035: Uneven 4-way partitions
- CWG-C034: Intra Directional Interpolation Filter
- CWG-D059: Explicit Frame Distance Calculation
- CWG-D034: Improved Global Motion
- Disable global motion by default (related to CWG-D034)
- Signal CFL Downsampling Filter in Sequence Header (Decision from CWG
  Call on 2023/06/16)
- CWG-D015: Wedge Blending Improvement
- CWG-D074: SMVP Fix
- CWG-D029: On downsampling filter in CfL mode
- CWG-D067: Improved warp motion of AVM (Aspects 1 and 2)
- CWG-D031: Sub-block based MV refinement
- CWG-D028: On downsampling filter in the CfL mode for the 4:2:2 chroma
  format
- CWG-D060: Separate DRL for Compound Prediction
- CWG-D071: Implicit Masked Blending Mode / Boundary-aware Compound
  Prediction
- CWG-D046: Blending Modes For Intra Prediction
- CWG-D061: Improve Encoding Speed of ERP
- CWG-D014: (Disabled by default) Frame Output Process Based On Order
  Hint

Code Cleanups
-------------
- Inspection / Accounting improvements
- CWG-D037, #3: Combine multiple compile-time flags into one

Gitlab CI Updates
-----------------
- CWG-D037, #6: More helpful error messages for failed CI jobs, which
  point to relevant wiki.
- Speed-up Per-MR CI
- Speed-up Nightly CI
- Add Decode Checks in CI

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/5#tab-issues

  • research-v5.0.0-rc1

    66bf5d0d · Disable CONFIG_OUTPUT_FRAME_BASED_ON_ORDER_HINT by default. · 
    Release candidate #1 for research-v5.0.0 anchor.

Includes the following since the previous anchor:

Candidate Tools
---------------
- CWG-D026: Temporal motion projection improvements
- CWG-D016: Improved angular intra prediction modes
- CWG-D020: Improved Signaling Scheme for ERP
- CWG-D045: Prediction Mode Dependent Skip Transform
- CWG-D023: DC-based TX Restriction and EOB Alignment
- CWG-D047: Add by-pass check in deblocking strength decision
- CWG-D027: compound weighted prediction
- CWG-D043: Bug Fix for H-Partitions
- CWG-D010 + CWG-D052: Non-separable wiener filter improvements
- CWG_D041: Extended Intra Prediction Angles
- CWG-D035: Uneven 4-way partitions
- CWG-C034: Intra Directional Interpolation Filter
- CWG-D059: Explicit Frame Distance Calculation
- CWG-D034: Improved Global Motion
- Disable global motion by default (related to CWG-D034)
- Signal CFL Downsampling Filter in Sequence Header (Decision from CWG
  Call on 2023/06/16)
- CWG-D015: Wedge Blending Improvement
- CWG-D074: SMVP Fix
- CWG-D029: On downsampling filter in CfL mode
- CWG-D067: Improved warp motion of AVM (Aspects 1 and 2)
- CWG-D031: Sub-block based MV refinement
- CWG-D028: On downsampling filter in the CfL mode for the 4:2:2 chroma
  format
- CWG-D060: Separate DRL for Compound Prediction
- CWG-D071: Implicit Masked Blending Mode / Boundary-aware Compound
  Prediction
- CWG-D046: Blending Modes For Intra Prediction
- CWG-D061: Improve Encoding Speed of ERP
- CWG-D014: (Disabled by default) Frame Output Process Based On Order
  Hint

Code Cleanups
-------------
- Inspection / Accounting improvements

Gitlab CI Updates
-----------------
- CWG-D037, #6: More helpful error messages for failed CI jobs, which
  point to relevant wiki.
- Speed-up Per-MR CI
- Speed-up Nightly CI
- Add Decode Checks in CI

Bugfixes
--------
https://gitlab.com/AOMediaCodec/avm/-/milestones/5#tab-issues