Search Results for "JVET-AF2017"
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Abstract
This document defines common test conditions and software reference configurations for testing of enhanced compression tools beyond VVC. These conditions and configurations are recommended for use in applicable technical contributions to JVET meetings.
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JVET-AF2017 Common test conditions and evaluation procedures for enhanced compression tool testing [M. Karczewicz, Y. Ye] (2023-11-03)
This is to include a modified Excel sheet, and mention the requirement of documenting decoder memory consumption (see discussion under JVET-AF0201).
Remains valid – not updated: JVET-AA2018 Common test conditions for high bit depth and high bit rate video coding [A. Browne, T. Ikai, D. Rusanovskyy, X. Xiu, Y. Yu]
JVET-AF2017 Common test conditions and evaluation procedures for enhanced compression tool testing [M. Karczewicz, Y. Ye] (2023-11-03)
This is to include a modified Excel sheet, and mention the requirement of documenting decoder memory consumption (see discussion under JVET-AF0201).
Remains valid – not updated: JVET-AA2018 Common test conditions for high bit depth and high bit rate video coding [A. Browne, T. Ikai, D. Rusanovskyy, X. Xiu, Y. Yu]
Decisions
JVET-AF2017 Common test conditions and evaluation procedures for enhanced compression tool testing
Remains valid – not updated: JVET-AA2018 Common test conditions for high bit depth and high bit rate video coding [A. Browne, T. Ikai, D. Rusanovskyy, X. Xiu, Y. Yu]
Citation
Abstract
This report summarizes the activities of the AHG6 on ECM software development that has taken place between the 36th and 37th JVET meetings.
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JVET-AK0006 JVET AHG report: ECM software development (AHG6) [V. Seregin (chair), J. Chen, R. Chernyak, F. Le Léannec, K. Zhang (vice-chairs)]
- Software development
ECM software repository is located at https://vcgit.hhi.fraunhofer.de/ecm/ECM.
ECM software is based on VTM-10.0 with enabled MCTF including the update from JVET-V0056, and GOP32, which is very close to VTM-11.0.
VTM-11.0ecm anchor https://vcgit.hhi.fraunhofer.de/ecm/ECM/-/tree/VTM11_ANC is used for ECM performance evaluation.
The following changes were integrated into ECM-14.1:
- Fix issue #74 TM tools off for JVET-AI0103 [MR 726]
- Fix Clang 16.0.6 compiling issues [MR 724]
- Set GeoInerIbc in config file explicitly to enable it for SCC [MR 725]
- Fix: compilation when macro JVET_AI0136_ADAPTIVE_DUAL_TREE is set to 0[MR 726]
- Fix: wrong memory access in case of DebugBitstream feature usage [MR 728]
- Correction related to adaptive dual treee (JVET_AI0136) to make feature DebugBitstream work [MR 727]
- Fix DebugBitstream issue caused by copying values for adaptive clipping [MR 730]
- Fix: RPR encoder crash when JVET_AH0314_LIC_INHERITANCE_FOR_MRG=1 [MR 729]
- Fix useless copies of TempCtx objects to Ctx dest [MR 731]
- Fix RPR w.r.t. temporal prediction of partitioning information [MR 734]
- Fix: 2 valgrind erros at encoder side [MR 735]
- Fix DebugBitstream issue caused by PDP [MR 733]
- Fix in addBIOAvgN_SSE for non-AVX2 with JVET_AI0046_HIGH_PRECISION_BDOF_SAMPLE [MR 736]
- Add check whether writing to bitstream succeeded [MR 738]
- Fix a bug of tracing blocks stats on decoder [MR 740]
The following changes were integrated into ECM-14.2:
Fix: always...
Decisions
merged
The AHG recommended to:
Continue to develop ECM software.
Improve the software documentation.
Encourage people to report all (potential) bugs that they are finding using GitLab Issues functionality https://vcgit.hhi.fraunhofer.de/ecm/ECM/-/issues.
Encourage people to submit merge requests fixing identified bugs.
Encourage people to continue working on ECM memory consumption reduction.
Encourage people to continue working on speeding up ECM encoder to reduce the simulation time.
Citation
Abstract
This report summarizes the activities of the AHG6 on ECM software development that has taken place between the 35th and 36th JVET meetings.
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JVET-AJ0006 JVET AHG report: ECM software development (AHG6) [V. Seregin (chair), J. Chen, R. Chernyak, F. Le Léannec, K. Zhang (vice-chairs)]
- Software development
ECM software repository is located at https://vcgit.hhi.fraunhofer.de/ecm/ECM.
ECM software is based on VTM-10.0 with enabled MCTF including the update from JVET-V0056, and GOP32, which is very close to VTM-11.0.
VTM-11.0ecm anchor https://vcgit.hhi.fraunhofer.de/ecm/ECM/-/tree/VTM11_ANC is used for ECM performance evaluation.
The following changes were integrated into ECM-14.0:
JVET-AI0046: High Precision Sample Based BDOF (Test 3.1a) [MR 699]
JVET-AI0166: CCALF with chroma inputs (Test 5.3a) [MR 703]
JVET-AI0094: Sharp motion compensation filter for bi-prediction (Test 3.10b) [MR 709]
JVET-AI0066: Regularized EIP (Test 2.7a) [MR 712]
JVET-AI0103: Additional chained motion vector prediction candidates (Test 3.5b) [MR 698]
JVET-AI0197: Affine candidates derived from temporal collocated pictures (Test 3.9) [MR 714]
JVET-AI0136: Adaptive dual tree in inter slices (Test 1.1c) [MR 705, 716]
JVET-AI0082: GPM with inter prediction and IBC and temporal BV (Test 3.3b) [MR 696]
JVET-AI0183: MVP extension (Test 3.4e) [MR 708]
JVET-AI0185: Adaptive cost function selection in merge mode (Test 3.6) [MR 706]
JVET-AI0050: Improvements on Inter LFNST/NSPT (Test 4.1c) [MR 713]
JVET-AI0129: IntraTMP candidates with overlapping refinement window enhanced (Test 2.6c) [MR 711]
JVET-AI0183: MVP extension (Test 3.4e) [MR 708]
JVET-AI0187: TMVP for chained motion vector prediction (Test 3.7) [MR 700]
JVET-AI0084: ALF residuals scaling...
Decisions
merged
The AHG recommended to:
Continue to develop ECM software.
Improve the software documentation.
Encourage people to report all (potential) bugs that they are finding using GitLab Issues functionality https://vcgit.hhi.fraunhofer.de/ecm/ECM/-/issues.
Encourage people to submit merge requests fixing identified bugs.
Encourage people to continue working on ECM memory consumption reduction.
Encourage people to continue working on speeding up ECM encoder to reduce the simulation time.
It is noted that due to a bug that was found late, some EE results might not come with perfect match.
Citation
Abstract
This document contains a list of reported errata items for VVC, VSEI, HEVC, AVC, and Video CICP, for tracking purposes. Some of the items have been confirmed by the JVET and have been agreed to require fixing. This document also provides publication status backgrounds of these standards.
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JVET-AG1004 Errata report items for VVC, VSEI, HEVC, AVC, and Video CICP
JVET-AG1004 Errata report items for VVC, VSEI, HEVC, AVC, and Video CICP [Y.-K. Wang, B. Bross, I. Moccagatta, C. Rosewarne, G. J. Sullivan] (2024-03-29, near next meeting)
Primary editor: Y.-K. Wang.
Agreed to include items 1-3 (with slight modifications as indicated above) from JVET-AG0192 in JVET-AG1004.
These items should also be included into the AVC DIS and the HEVC DAM1 texts and their corresponding JVET output documents, when applicable.
No output: JVET-Axx1005
Remains valid – not updated: JVET-AF1006 New profiles, colour descriptors, and SEI messages for HEVC (draft 2) [WG 5 DAM N 244] [Y.-K. Wang, B. Bross, T. Ikai, G. J. Sullivan, A. Tourapis]
Primary editor for this document and WG 5 N 244: Y.-K. Wang.
A DoCR on ISO/IEC 23008-2/CDAM1 was issued as WG 5 N 243.
Remains valid – not updated: JCTVC-V1007 SHV...
Decisions
JVET-AG1004 Errata report items for VVC, VSEI, HEVC, AVC, and Video CICP
Remains valid – not updated: JVET-AA2018 Common test conditions for high bit depth and high bit rate video coding [A. Browne, T. Ikai, D. Rusanovskyy, X. Xiu, Y. Yu]
Citation
Abstract not available in document
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JVET-AG0333 BoG report on ECM expert viewing preparations [M. Wien]
The BoG on ECM expert viewing preparations met during 0600–0700 on Thursday 25 January 2024 (chaired by M. Wien)
A brief review of JVET-AB0041 “AHG4, 7, 12: Report on AHG meetings on ECM performance evaluation preparation” for checking the preparations for ECM viewing which have taken place before the Mainz meeting in October 2022 (reported in JVET-AB2029) was conducted.
Discussion on the possible size of the test:
About 30s of test time per PVS (processed video sequence)
Separate sessions for different resolutions
Recommended duration of one test session: 15min (20min max)
In the JVET-AB2029 tests
7 UHD sequences: all RA
6 HD sequences: 3 RA, 3 LD
It was suggested to follow the basic layout of the test reported in JVET-AB2029. The size of the test could be extended a bit, but keeping it at about this size might be good....
Decisions
It was commented that the planned viewing test is highly important to understand the potential of additional coding tools for future standardization. Therefore, additional volunteers contributing to the preparation are sought.
noted
The list of JVET ad hoc groups was also issued as a WG 5 output document WG 5 N 270, as noted in section 9.
Citation
Abstract
This document reports on the work of the JVET ad hoc group on Project Management, including an overall status report on JVET’s standardization projects and the progress made during the interim period since the preceding meeting.
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JVET-AG0001 JVET AHG report: Project Management (AHG1) [J.-R. Ohm (chair), G. J. Sullivan (vice chair)]
The work of the JVET overall had proceeded well in the interim period with a higher number of input documents (as compared to the previous meeting) submitted to the current meeting. Intense discussion had been carried out on the group email reflector, and most output documents from the preceding meeting had been produced as planned.
Output documents from the preceding meeting had been made initially available at the JVET web site (https://jvet-experts.org/) or the ITU-based JVET site (http://wftp3.itu.int/av-arch/jvet-site/2023_10_AF_Hannover/). It is noted that the previous document sites http://phenix.int-evry.fr/jvet/, http://phenix.int-evry.fr/jct/, and http://phenix.int-evry.fr/jct3v/ are still accessible, but were converted to read-only.
The list of documents produced included th...
Decisions
A preliminary basis for the document subject allocation and meeting notes for the 33nd meeting had been made publicly available on the ITU-hosted ftp site as http://wftp3.itu.int/av-arch/jvet-site/2024_01_AG_Virtual/JVET-AG_notes_d0.docx.
Citation
Abstract
This report summarizes the activities of the AHG6 on ECM software development that has taken place between the 32nd and 33rd JVET meetings.
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JVET-AG0006 JVET AHG report: ECM software development (AHG6) [V. Seregin (chair), J. Chen, R. Chernyak, F. Le Léannec, K. Zhang (vice-chairs)]
Software development
ECM software repository is located at https://vcgit.hhi.fraunhofer.de/ecm/ECM.
ECM software is based on VTM-10.0 with enabled MCTF including the update from JVET-V0056, and GOP32, which is very close to VTM-11.0.
VTM-11.0ecm anchor https://vcgit.hhi.fraunhofer.de/ecm/ECM/-/tree/VTM11_ANC is used for ECM performance evaluation.
The following changes were integrated into ECM-10.1:
Fix: high QP for AA0093 (MR 519)
Fix: reconstruction buffer copied when BIF is not performed for a sub-TU (MR 522)
Fix for uninitialized values usage reported by valgrind (MR 524)
Reduce MCTF peak memory allocation by computing applyMotion in place
Fix: memory reduction: use actual CTU size instead of MAX_CU_SIZE in encoder (MR 520)
ALF optimization -...
Decisions
merged
The AHG recommended to:
Continue to develop ECM software.
Improve the software documentation.
Encourage people to report all (potential) bugs that they are finding using GitLab Issues functionality https://vcgit.hhi.fraunhofer.de/ecm/ECM/-/issues.
Encourage people to submit merge requests fixing identified bugs.
Encourage people to continue working on ECM memory consumption reduction.
Encourage people to continue working on speeding up ECM encoder to reduce the simulation time.
It was asked what the memory consumption is compared to the VTM. This was not reported, but it is estimated to be larger by a factor of approximately 2x for the current ECM software implementation.
Citation
Abstract
This document reports the verification test results of VVC multi-layer coding according to the “Content layering” category of the verification test plan JVET-AD2021 that was issued in the 30th JVET meeting. Content layering is one of the useful use cases, where main content and multiple sub-content are coded with multi-layer coding into a single bitstream and delivered to the users. By selecting a layer to be decoded, the user can freely select whether to view the main content or the sub-content. The functional test using three test sequences with sub-contents was carried out using a real-time VVC decoder with multilayer coding capability, to demonstrate the effectiveness of content layering application.
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JVET-AF2033 Report of verification test on VVC multi-layer coding: Content layering
The following 4 documents were produced as WG 5 documents only, without a corresponding JVET output document or direct repetition of their content in this meeting report:
WG 5 N 240 Disposition of comments received on ISO/IEC CD 14496-10:202x
WG 5 N 243 Disposition of comments received on ISO/IEC 23008-2:202x (5th ed.) CDAM 1
WG 5 N 251 Liaison statement to ISO/IEC JTC 1/SC 29/WG 1 (JPEG) on JPEG AI and explorations on video coding
WG 5 N 252 Liaison response to 3GPP on feasibility study on film grain synthesis
For the organization and planning of its future work, the JVET established 16 “ad hoc groups” (AHGs) to progress the work on particular subject areas. At this meeting, 2 Exploration Experiments (EE) were defined. The next eight JVET meetings were planned for 17 – 19 and 22 – 26 January 2024 under I...
Cited:
Decisions
a) JVET documents
The meeting was closed at 1724 CEST on 2023-10-20.
Citation
Abstract
This report summarizes the discussion during BoG on assessment of HOP proposals established during JVET-AF meeting.
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JVET-AF0307 BoG on assessment of HOP proposals [E. Alshina, F. Galpin]
This was presented in JVET Wed. 18 Oct. at 1305 (chaired by JRO)
The following categories of proposals had been discussed:
Filter usage aspects (section 1);
Training aspects (section 2);
Design elements of HOP for future NNVC (section 3).
Recommendations
Adoption to NNVC-7.0
Decision (software): Adopt JVET-AF0085 (EE1-1.2.1), enable by default for LOP and HOP;
Decision (software fix): Adopt JVET-AF0172 (redundant signalling removal);
Decision (software, encoder only): Adopt JVET-AF0193 (disable by default);
Decision (training): Adopt JVET-AF0180 and JVET-AF0155 (12:1:1 distortion weight in HOP training)
Decision (CTC): Adopt JVET-AF0155 (Chroma QP offset +1 for HOP inference)
Next EE1:
Agreement: stay with single models for HOP
EE1-0: HOP re-train with 12:1:1 loss (in inference Chroma QP offset +1 and JVET-AF0085);
JV...
Decisions
adopted
Adopt JVET-AF0205 (decided Thursday 19 Oct. at 1630, after confirmation of successful completion of the crosscheck)
Citation
Abstract
This contribution proposes to correct the VTM11-ecm test conditions, to align them with the ECM test conditions used in Ahg12.
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JVET-AF0165 Ahg7/Ahg12: On VTM-11ecm anchor low-delay test conditions [F. Le Léannec, S. Puri, E. François, K. Naser (InterDigital)]
See notes in section 5.2.5.
JVET-AF0165 Ahg7/Ahg12: On VTM-11ecm anchor low-delay test conditions [F. Le Léannec, S. Puri, E. François, K. Naser (InterDigital)]
This contribution proposes to correct the VTM11-ecm test conditions, to align them with the ECM test conditions used in Ahg12.
In the 31st JVET meeting, contribution JVET-AE0163 was adopted to significantly reduce the worst-case encoding time in low-delay configurations. This was achieved by reducing maximum MTT depth from 3 to 2 for inter slices with temporal depth greater or equal to 2 in class B.
However, this CTC modification was not ported to the test conditions of VTM-11ecm software, which is used as the anchor to evaluate ECM performances.
This contribution proposes to fix this CTC misalignm...
Decisions
See notes in section 5.2.5.
adopted
Decision (CTC): Adopt JVET-AF0165.
Citation
Abstract
This document provides a memory consumption comparison between ECM9, ECM10 and one of the recent versions of ECM master branch. It is observed that significant improvement of the ECM memory consumption was performed after ECM9 release and worst case of encoder time memory consumption was reduced for more than 50%. This document also proposes to extend the current ECM encoder memory measurement mechanism to the decoder side.
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JVET-AF0201 AHG6: On ECM SW memory consumption [R. Chernyak, M. Xu, S. Liu (Tencent), Y. Yasugi, T. Ikai (Sharp)]
This document provides a memory consumption comparison between ECM9, ECM10 and one of the recent versions of ECM master branch. It is observed that significant improvement of the ECM memory consumption was performed after ECM9 release and worst case of encoder time memory consumption was reduced for more than 50%. This document also proposes to extend the current ECM encoder memory measurement mechanism to the decoder side.
This contribution pointed out an increase in SAO-related encoder memory consumption between ECM-9.1 and ECM-10.0.
m_cCuEncoder
m_cEncAlf
m_cEnc_Sao
Other
Total
ECM9
0.7
21
0.5
0.2
22.4
ECM10
0.7
6.9
2.3
0.2
10.1
ECM10-9e651
0.2
6.9
2.3
0.1
9.5
It was asked what might have caused the big difference in SAO-related memory consumption. The proponent has not lo...
Decisions
It was agreed to update the CTC document JVET-AF2017 to include an xls template that contains decoder memory comsuption information.
Citation