Search Results for "ULL"
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Abstract
This contribution reports evaluation results of random access GOP4 configuration suggested by contribution JVET-AM0238 in low latency scenario. Under ULL test conditions described in JVET-AN2039 with latency restriction modified to the range of 70 to 130 ms it was observed that temporal layer 0 is delivered in most of the cases confirming the benefits of temporal scalability in low latency scenario. At the same time temporal layers 1 and 2 are often missed due to network transmission issues leading to instant FPS drop clearly noticeable during video playback. The ULL CfE response published as contribution JVET-AN0080 was also evaluated in the same conditions, and at QP22 demonstrated 2.1 dB of average Y-PSNR improvement, and 28% to 16% of freeze ratio reduction for transmission priority channel, and 0.8 dB average Y-PSNR improvement and 31% to 27% freeze ratio reduction on a channel without transmission priorities, with 1.9% BD-Rate overhead of Y-PSNR. The modifications required for evaluation of RA configuration on top of AHG18 simulation software are also described.
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JVET-AP0200 AHG18: Random Access GOP4 Configuration for Live-streaming Applications evaluated in ULL test conditions [S. Ikonin, I. Gribushin, M. Sychev, K. Malyshev, V. Khamidullin, B. Shevchenko, X. Ma, E. Alshina (Huawei), Z. Deng (Bytedance)]
This contribution reports evaluation results of random access GOP4 configuration suggested by contribution JVET-AM0238 in low latency scenario. Under ULL test conditions described in JVET-AN2039 with latency restriction modified to the range of 70 to 130 ms it was observed that temporal layer 0 is delivered in most of the cases confirming the benefits of temporal scalability in low latency scenario. At the same time temporal layers 1 and 2 are often missed due to network transmission issues leading to instant FPS drop clearly noticeable during video playback. The ULL CfE response published as contribution JVET-AN0080 was also evaluated in the same conditions, and at QP22 demonstrated 2.1 dB of average Y-PSNR improvement, and 28% to 16% of freeze ratio reduction for transmission priority channel, and 0.8 dB average Y-PSNR improvement and 31% to 27% freeze ratio reduction on a channel without transmission priorities, with 1.9% BD-Rate overhead of Y-PSNR. The modifications required for evaluation of RA configuration on top of AHG18 simulation software are also described.
It was agreed to include this as an option for further study into the AHG software.
It was commented that this is not “ultra” low latency, unlike the other scenarios/configurations investigated so far, but a higher variety of cases is probably welcome.
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Anc_BasketballDrive_1920x1080_50fps_8bit_420_lat130_Anchor.VTM.mp4
encoder_randomaccess_vtm_gop4_based.cfg
JVET-AP0200-v1-PriorityOff-Broadcast-RA-GOP4-ULL-CfE-JVET-AN0080vsVTM.xlsm
JVET-AP0200-v1-PriorityOff-Broadcast-RA-GOP4vsLDB.xlsm
JVET-AP0200-v1-PriorityOn-Broadcast-RA-GOP4-ULL-CfE-JVET-AN0080vsVTM.xlsm
JVET-AP0200-v1.pptx
JVET-AP0200-v2.docx
Test_BasketballDrive_1920x1080_50fps_8bit_420_lat130_Test.ULL-CfE-JVET-AN0080.mp4
zMoreVideos_LinkToGoogleDrive.url
Decisions
It was commented that this is not “ultra” low latency, unlike the other scenarios/configurations investigated so far, but a higher variety of cases is probably welcome.
Citation
Abstract
This contribution reviews the framework for low-latency techniques in previous international video coding standards and discusses evaluation metrics about video coding delay. The purpose of this contribution is to help discussions regarding the testing conditions on ultra-low latency (ULL) in the call for proposals (CfP) on video compression with capability beyond VVC.
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JVET-AO0072 AHG17/AHG18: On ULL evaluation metrics toward CfP [T. Chujoh, Y. Kidani, K. Kawamura (KDDI)]
This contribution reviews the framework for low-latency techniques in previous international video coding standards and discusses evaluation metrics about video coding delay. The purpose of this contribution is to help discussions regarding the testing conditions on ultra-low latency (ULL) in the call for proposals (CfP) on video compression with capability beyond VVC.
It was agreed that requesting such information in CfP submissions would be useful. It was however pointed out that HRD concepts might not apply to some algorithms, or might be wrongly interpreted.
When coded bits per picture are known, many other of the metrics can be determined.
It was asked how different proposals would be compared in terms of the reported metrics? The initial seems to unveil at least the worst case of delay, and if it is exceedingly high.
It was commented that, in the current view of AHG18, processing time for encoding and decoding is not considered.
AHG19: Hardware implementation complexity (4)
Contributions in this area were discussed during 1650–1730 UTC on Friday 16 Jan. 2026 (chaired by JRO).
JVET-AO0147, JVET-AO0247, JVET-AO0249, and JVET-AO0286 are related on aspects of AI hardware complexity.
Decisions
It was commented that, in the current view of AHG18, processing time for encoding and decoding is not considered.
Citation
Abstract
This contribution describes the software related to the document JVET-AN0080 “AHG18: CfE response in additional functionality on ultra-low latency and packet loss resilience” presented and evaluated at 40th JVET meeting. The software contains further modifications on top of previously disclosed in contribution JVET-AN0045. The software is available as branch in AhG18 repository, named ‘jvet-an0080’: https://vcgit.hhi.fraunhofer.de/jvet-ahg-ull/VVCSoftware_VTM/-/tree/jvet-an008. The software implements the coding technology beyond VVC that supports packet loss resilient functionality in ultra-low latency video communication scenario. The technology re-uses concept of data partitioning of H.263/4, which separates prediction and residual information to different sub-streams. Additionally, entropy coding of residual coefficients is performed using multiple independent entropy coded chunks. The error mask is derived based on lost chunks indication, and further propagated following intra- and inter prediction from erroneous blocks. An error cancellation technique including NN-based loss aware filter (LAF), implemented using SADL library, is further applied to reduce subjective impact of reconstruction errors caused by missed residual information. The software was evaluated according to ULL CTC JVET-AN2039. In best preforming configuration with transmission priorities the simulation results demonstrate 2.6 dB of Y-PSNR improvement on top of multi-layer VTM in broadcast scenario, with only 2.3% of overhead, and average freeze ratio reduction from 23% down to 0% on top of single layer VTM in unicast scenario, with 2.6% overhead including effect of CCLM disabled.
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JVET-AO0048 AHG18: Description of the software related to ULL CfE response JVET-AN0080 [V. Khamidullin, K. Malyshev, A. Dzugaev, I. Gribushin, M. Sychev, X. Ma, S. Ikonin, E. Alshina (Huawei)]
This contribution describes the software related to the document JVET-AN0080 “AHG18: CfE response in additional functionality on ultra-low latency and packet loss resilience” presented and evaluated at 40th JVET meeting. The software contains further modifications on top of previously disclosed in contribution JVET-AN0045. The software is available as branch in AhG18 repository, named ‘jvet-an0080’: https://vcgit.hhi.fraunhofer.de/jvet-ahg-ull/VVCSoftware_VTM/-/tree/jvet-an008. The software implements the coding technology beyond VVC that supports packet loss resilient functionality in ultra-low latency video communication scenario. The technology re-uses concept of data partitioning of H.263/4, which separates prediction and residual information to different sub-streams. Additionally, entropy coding of residual coefficients is performed using multiple independent entropy coded chunks. The error mask is derived based on lost chunks indication, and further propagated following intra- and inter prediction from erroneous blocks. An error cancellation technique including NN-based loss aware filter (LAF), implemented using SADL library, is further applied to reduce subjective impact of reconstruction errors caused by missed residual information. The software was evaluated according to ULL CTC JVET-AN2039. In best preforming configuration with transmission priorities the simulation results...
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JVET-AO0048-v2-Clean-Unicast-VTM.ULL.CfE.CCLM_ON_OFF.xlsm
JVET-AO0048-v2-clean.docx
JVET-AO0048-v2-PriorityOff-Broadcast-SVTM.ULL.CfEvsSVTM.xlsm
JVET-AO0048-v2-PriorityOff-Broadcast-VTM.ULL.CfEvsVTM.xlsm
JVET-AO0048-v2-PriorityOff-Unicast-SVTM.ULL.CfEvsSVTM.xlsm
JVET-AO0048-v2-PriorityOff-Unicast-VTM.ULL.CfEvsVTM.xlsm
JVET-AO0048-v2-PriorityOn-Broadcast-SVTM.ULL.CfEvsSVTM.xlsm
JVET-AO0048-v2-PriorityOn-Broadcast-VTM.ULL.CfEvsVTM.xlsm
JVET-AO0048-v2-PriorityOn-Unicast-SVTM.ULL.CfEvsSVTM.xlsm
JVET-AO0048-v2-PriorityOn-Unicast-VTM.ULL.CfEvsVTM.xlsm
JVET-AO0048-v2.docx
Decisions
It was agreed that making the software of JVET-AN0080 available in the AHG18 branch is useful for study by other experts.
Citation
Abstract
Document JVET-AL0176 proposes methodology and test conditions for ultra-low latency (ULL) and error resilience performance evaluation in context of AHG18 work. This contribution describes proposed framework for ULL metrics evaluation. The exemplary quality-against-latency-restriction curves are provided for unicast and multicast scenario. Simulation results of VTM for single layer and scalable two-layer coding are provided. The contribution contains list of modifications and fixes to enable AHG18 simulation software working according to proposed test conditions.
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JVET-AL0201 AHG18: Performance evaluation of VTM under proposed ULL test conditions and proposed software modifications [S. Ikonin, V. Khamidullin, R. Shabaev, I. Gribushin, M. Sychev, E. Alshina (Huawei)]
Document JVET-AL0176 proposes methodology and test conditions for ultra-low latency (ULL) and error resilience performance evaluation in context of AHG18 work. This contribution describes proposed framework for ULL metrics evaluation. The exemplary quality-against-latency-restriction curves are provided for unicast and multicast scenario. Simulation results of VTM for single layer and scalable two-layer coding are provided. The contribution contains a list of modifications and fixes to enable AHG18 simulation software working according to proposed test conditions.
For the feedback scenario, losses are dependent on the latency. Decoder is performing frame freezing or generates pictures...
Decisions
It was agreed to add the software to the AHG branch fur further study and basis for further developments.
Citation
Abstract
During discussions of AHG18 ULL-related contributions, it was noted that traditionally error resilience is handled at the network or application level, e.g., by applying Forward Error Correction (FEC). This contribution describes experiments applying packet-based Reed-Solomon codes as FEC in the AHG18 ultra-low latency simulation software. The FEC functionality is implemented as part of the Network simulation application. Encoding is performed after packetization but before network transmission, whereas decoding is performed in the jitter-buffer upon packet reception, just before the received data is passed to the decoding process. The evaluation results demonstrate moderate improvement in specific configurations based on ULL CTC. It is proposed to include FEC functionality in the AHG18 simulation software and continue the study within AHG18.
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JVET-AQ0183 AHG18: Forward Error Correction for ULL simulation software [I. Gribushin, K. Malyshev, G. Gotovskii, B. Shevchenko, S. Ikonin, E. Alshina (Huawei)]
During discussions of AHG18 ULL-related contributions, it was noted that traditionally error resilience is handled at the network or application level, e.g., by applying Forward Error Correction (FEC). This contribution describes experiments applying packet-based Reed-Solomon codes as FEC in the AHG18 ultra-low latency simulation software. The FEC functionality is implemented as part of the Network simulation application. Encoding is performed after packetization but before network transmission, whereas decoding is performed in the jitter-buffer upon packet reception, just before the received data is passed to the decoding process. The evaluation results demonstrate moderate improvement in specific configurations based on ULL CTC...
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Decisions
Decision(SW): integrate JVET-AQ0183 in AHG18 software
Citation
Abstract
This document proposes the software modifications on top of AHG18 simulation software allowing to use network simulation as standalone application separated from encoding and decoding process. The standalone application, similarly to JVET-AK0057, parses Annex B format bitstream, and provides a flexibility for testing of various video coding solutions under desired network scenario using pre-encoded uncorrupted bitstreams, and is applicable for broadcasting scenario with no feedback. The proposed modifications keep the network model behavior same as described in CTC document JVET-AN2039 and implemented in JVET-AO0047, providing the capability of configuring network transmission priorities using configuration file additionally. Option to link network model with encoding application is also remains, which makes possible to test unicast scenario using VTM based software.
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JVET-AO0123 AHG18: Standalone network simulation application on top of ULL software [K. Malyshev, I. Gribushin, V. Khamidullin, M. Sychev, S. Ikonin, E. Alshina (Huawei)]
This document proposes the software modifications on top of AHG18 simulation software allowing to use network simulation as standalone application separated from encoding and decoding process. The standalone application, similarly to JVET-AK0057, parses Annex B format bitstream, and provides a flexibility for testing of various video coding solutions under desired network scenario using pre-encoded uncorrupted bitstreams, and is applicable for broadcasting scenario with no feedback. The proposed modifications keep the network model behaviour same as described in CTC document JVET-AN2039 and implemented in JVET-AO0047, providing the capability of configuring network transmission priorities using configuration file additi...
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Decisions
The implementation of feedback mechanism such that those could easily be used by any encoder app seems to require further study. For this, a first step would be to implement the feedback mechanism in the encoder app of JVET-AO0047 such that it can be used with the separated network app.
Citation
Abstract
This contribution describes the simulation software submitted for AGH18 on ultra-low latency and packet loss resilience based on contribution JVET-AN2039. The purpose of this document is to give an introduction and help to be familiar with software. The document describes main modifications of encoder and decoder applications of VTM, entry point for network transmission emulation, and basic logic of main modules. The software also includes the fixes of JVET-AN0081 approved by 40th JVET meeting. The software is available as a branch at https://vcgit.hhi.fraunhofer.de/jvet-ahg-ull/VVCSoftware_VTM/-/tree/jvet-an2039.
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JVET-AO0047 AHG18: Simulation software for ULL CTC JVET-AN2039 [V. Khamidullin, K. Malyshev, I. Gribushin, M. Sychev, S. Ikonin, E. Alshina (Huawei)]
This contribution describes the simulation software submitted for AGH18 on ultra-low latency and packet loss resilience based on contribution JVET-AN2039. The purpose of this document is to give an introduction and help to be familiar with software. The document describes main modifications of encoder and decoder applications of VTM, entry point for network transmission emulation, and basic logic of main modules. The software also includes the fixes of JVET-AN0081 approved by 40th JVET meeting. The software is available as a branch at https://vcgit.hhi.fraunhofer.de/jvet-ahg-ull/VVCSoftware_VTM/-/tree/jvet-an2039.
The software consists of a modified VTM (encoder and decoder). It is using a trace file that is coming from an external network...
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Decisions
Decision (SW): include JVET-AO0047 in AHG18 software
Citation
Abstract
This contribution reports experimental results of latency and throughput measurements in a 5G mobile network. It also describes a method for monitoring latency in real time. The method is based on measuring the inter-arrival time of periodically transmitted packets. This approach can be applied to systems that need to transmit video for real-time safety over mobile networks. It is also considered advantageous for supporting ultra-low latency application scenarios in MPEG.
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JVET-AN0050 AHG18: An Introduction to 5G Latency/Throughput Measurement and Real-Time Monitoring for ULL Application Scenarios [B. Jeon (TTA), S. M. Kim (LGUplus)]
This contribution reports experimental results of latency and throughput measurements in a 5G mobile network. It also describes a method for monitoring latency in real time. The method is based on measuring the inter-arrival time of periodically transmitted packets. This approach can be applied to systems that need to transmit video for real-time safety over mobile networks. It is also considered advantageous for supporting ultra-low latency application scenarios in MPEG.
No review was conducted. This document is for information, and the contributor informed the JVET chair that he is unavailable for presentation this time. He will re-submit to the next meeting.
Decisions
for information
No review was conducted. This document is for information, and the contributor informed the JVET chair that he is unavailable for presentation this time. He will re-submit to the next meeting.
Citation
Abstract
This contribution presents an overview of the features developed in the 3GPP network for Extended Reality (XR) and related high quality conversational video applications. This contribution proposes to develop test conditions related to the 3GPP network that results in losses of “groups of correlated packets” and different prioritization values to packets (1-15 in 3GPP network). Adopting test conditions corresponding to the 3GPP network can benefit both the codec design and potentially adoption in 3GPP network conditions.
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JVET-AM0201 AHG18: Overview of 3GPP features for Extended Reality (XR) and related high quality conversational services and related implications for ultra-low latency (ULL) coding [R. Mekuria, Q. Pan, X. Ma, S. Ikonin, E. Alshina (Huawei)]
This contribution presents an overview of the features developed in the 3GPP network for Extended Reality (XR) and related high quality conversational video applications. This contribution proposes to develop test conditions related to the 3GPP network that results in losses of “groups of correlated packets” and different prioritization values to packets (1-15 in 3GPP network). Adopting test conditions corresponding to the 3GPP network can benefit both the codec design and potentially adoption in 3GPP network conditions.
It is commented that a mechanism for prioritizing packets as available in modern networks (described in this contribution and similar...
Decisions
In this proposal, it is suggested by the proponent to include a test condition that mimics the 3GPP method. It is however suggested to start implementing more generic priority mechanisms for dedicated packets or groups of packets without sticking to some specific protocol. It is also commented that some mechanism of grouping packets is already present in the simulator (for Wifi).Agreed to further study and work on this in the AHG.
Citation
Abstract
This document describes an experiment of applying NNFP functionality for generation of lost pictures unavailable due to network transmission issues in ultra-low latency scenario, and proposes modifications to the AHG18 software to enable this functionality based on existing NNPF SEI mechanism. The proposed implementation is controlled via the NNPF interface and utilizes the additional syntax proposed in JVET-AP0226. The generated pictures can be used both for output to display, and for lost reference frames substitution controlled by specific flag. Being tested according to ULL CTC JVET-AN2039, this picture generation technique allows to reduce video freezes significantly, and noticeable improves subjective quality for short interval freeze substitution. At the same time long distance extrapolation remains challenging. The contribution provides a starting point for further investigation and improvement in various aspects of missed picture generation functionality.
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JVET-AP0222 AHG18: Decoder side NN-based picture generation for lost picture substitution [K. Malyshev, M. Sychev, S. Ikonin, E. Alshina (Huawei)]
This document describes an experiment of applying NNFP functionality for generation of lost pictures unavailable due to network transmission issues in ultra-low latency scenario, and proposes modifications to the AHG18 software to enable this functionality based on existing NNPF SEI mechanism. The proposed implementation is controlled via the NNPF interface and utilizes the additional syntax proposed in JVET-AP0226. The generated pictures can be used both for output to display, and for lost reference frames substitution controlled by specific flag. Being tested according to ULL CTC JVET-AN2039, this picture generation technique allows to reduce video freezes significantly, and noticeable improves subjective quality for short interval freeze su...
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Decisions
Agreed to be included in AHG software (same branch as for loop filter).
Citation
Abstract
This contribution suggests a text for functionality test on ultra-low latency and packet loss resilience as specific category for future Call for Proposals. Based on contribution JVET-AN0204, JVET-AN2039 ULL CTC, CfE evaluation discussion, and discussion of AHG18 teleconference summarised in JVET-AO0049 a marked-up version of JVET-AO0045 “Draft Joint Call for Proposals on video compression with capability beyond VVC (initial text)” covering ultra-low latency and packet loss resilience category is provided.
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JVET-AO0052 AHG17/AHG18: Suggested CfP text for ultra-low latency and packet loss resilience category [S. Ikonin, X. Ma, E. Alshina (Huawei)]
This contribution suggests a text for functionality test on ultra-low latency and packet loss resilience as specific category for future Call for Proposals. Based on contribution JVET-AN0204, JVET-AN2039 ULL CTC, CfE evaluation discussion, and discussion of AHG18 teleconference summarised in JVET-AO0049 a marked-up version of JVET-AO0045 “Draft Joint Call for Proposals on video compression with capability beyond VVC (initial text)” covering ultra-low latency and packet loss resilience category is provided.
It was commented that it would be desirable to have more close rate matching, like in the other categories. It was argued that this test would be more about seeing differences in network-caused artifacts rather than compression artifacts.
It was...
Decisions
No consensus was reached to have this included in CfP.
Citation
Abstract
This contribution provides an extension of GDR functionality to support multi-reference configuration like LDB. Proposed solution is described and accompanied with simulation results obtained according ULL CTC (JVET-AN2039) and GDR configuration from (JVET-AN0195).
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JVET-AO0208 AHG18: GDR functionality with LowDelay-B configuration [A. Dzugaev, M. Sychev, K. Malyshev, S. Ikonin, E. Alshina (Huawei)] [late]
This contribution provides an extension of GDR functionality to support multi-reference configuration like LDB. Proposed solution is described and accompanied with simulation results obtained according ULL CTC (JVET-AN2039) and GDR configuration from (JVET-AN0195).
Current implementation of GDR in VTM enforce GOP=1 once GDR enabled which leads to IPPI configuration. There are two SW fixes proposed for fixing issues with GDR in combination with LDB configuration. The removal of this configuration restriction and further fixing functionality demonstrate BD-PSNR-Y 5.5 dB improvement on average under ULL CTC in broadcast scenario. The freezing ratio reduced from 68% down to 44% versus classic VTM anchor.
IDR pictures were replaced by GDR pictures with...
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Decisions
adopted
Decision (SW): Adopt JVET-AO0208 into AHG18 software.
Citation
Abstract
In 39th JVET meeting several comments and suggestions concerning ULL CTC were discussed, mainly based on contributions JVET-AM0109, JVET-AM0202, JVET-AM0204, JVET-AM0222, JVET-AM0325. This contribution follows up this discussion and addresses the comments in aspects of LDP/LDB configuration, broader QP range, spatial scalability, new packet trace files and automatic bandwidth rate points selection for matching channel capacity to video bitrate.
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JVET-AN0046 AHG18: On test conditions for ultra-low latency and packet loss resilience with full QP range [S. Ikonin, I. Gribushin, V. Khamidullin, B. Shevchenko, E. Alshina (Huawei)]
In 39th JVET meeting several comments and suggestions concerning ULL CTC were discussed, mainly based on contributions JVET-AM0109, JVET-AM0202, JVET-AM0204, JVET-AM0222, JVET-AM0325. This contribution follows up this discussion and addresses the comments in aspects of LDP/LDB configuration, broader QP range, spatial scalability, new packet trace files and automatic bandwidth rate points selection for matching channel capacity to video bitrate.
Was already presented in AHG meeting, but discussed again.
The basic problem that this contribution tries to address is the fact that it is tried to simulate cases where errors occur, and if the same network model would be used for QP22 and QP40, the latter would be...
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002.7mbps_room16x8_bw80MHz_nb20mbps_ds.csv
004.0mbps_room16x8_bw80MHz_nb20mbps_ds.csv
006.0Mbps_room16x8_bw80MHz_nb20mbps_ds.csv
016mbps_room16x8_bw20MHz_255s.csv
022mbps_room16x8_bw20MHz_255s.csv
bandwidth_point_selection.py
config.yaml
JVET-AN0046-v1.docx
JVET-AN0046_IPPIvsLDPvsLDB_SVTM.xlsm
JVET-AN0046_IPPIvsLDPvsLDB_VTM.xlsm
JVET-AN0046_ULL-QP22-LDB-LDP-SVTM-vs-VTM.xlsm
JVET-AN0046_ULL-QP27--LDB-LDP-SVTM-vs-VTM.xlsm
JVET-AN0046_ULL-QP32--LDB-LDP-SVTM-vs-VTM.xlsm
JVET-AN0046_ULL-QP37-LDB-LDP-SVTM-vs-VTM.xlsm
requirements.txt
Decisions
The contribution also includes the software patch for spatial scalability which requires further confirmation by an independent party.
Citation
Abstract
This contribution includes the software related to document JVET-AM0218 “AHG18: Solution beyond scalable coding for ultra-low latency and packet loss resilience” presented and 39th JVET meeting in Daejeon, Korea. The video demonstration related to the contribution was also presented during the demo session. The presented ULL coding technology was comprehensively discussed with experts, and many experts expressed the interest about the details. After further polishing and in order to complement AHG18 research activity the software is provided with this contribution. The software is provided as a git patch on top of VTM-based simulation software used in AhG18. It is suggested to include the software into exploration experiments in context of AhG18 work.
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JVET-AN0045 AHG18: Codec software for ultra-low latency and packet loss resilience [S. Ikonin, V. Khamidullin, K. Malyshev, I. Gribushin, X. Ma, E. Alshina (Huawei)]
This contribution includes the software related to document JVET-AM0218 “AHG18: Solution beyond scalable coding for ultra-low latency and packet loss resilience” presented and 39th JVET meeting in Daejeon, Korea. The video demonstration related to the contribution was also presented during the demo session. The presented ULL coding technology was comprehensively discussed with experts, and many experts expressed the interest about the details. After further polishing and in order to complement AHG18 research activity the software is provided with this contribution. The software is provided as a git patch on top of VTM-based simulation software used in AhG18. It is suggested to include the software into exploration experiment...
Decisions
In a possible CfP, it would be relevant that the exact pattern of errors would not be known by the time of submission.
Citation
Abstract
In this contribution, the progresses of the next generation media transport protocol, i.e., Media over QUIC(MoQ), are introduced. MoQ is designed by IETF to support a wide range of latency requirements ranging from seconds to tens of milliseconds. Its flexible priority mechanism, inherited from QUIC, ensures that critical information is transmitted preferentially, while less-critical data is dropped first during congestion—an attribute particularly advantageous for supporting Real-time Communication (RTC), especially for the ultra-low latency (ULL) application scenarios. Moreover, MoQ inherits from QUIC the capability to transmit both reliable streams and unreliable datagrams over a single connection. The abovementioned capability and MoQ’s unique hierarchical object data model bring new transmission features, and there is a new possibility to enable ULL applications if the video codec can better fit the new transmission features.
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JVET-AM0188 AHG18: An introduction to the next generation media transport protocol – Media over QUIC (MoQ) [W. Ding, X. Ma, S. Ikonin, E. Alshina (Huawei)]
In this contribution, the progresses of the next generation media transport protocol, i.e., Media over QUIC(MoQ), are introduced. MoQ is designed by IETF to support a wide range of latency requirements ranging from seconds to tens of milliseconds. Its flexible priority mechanism, inherited from QUIC, ensures that critical information is transmitted preferentially, while less-critical data is dropped first during congestion—an attribute particularly advantageous for supporting Real-time Communication (RTC), especially for the ultra-low latency (ULL) application scenarios. Moreover, MoQ inherits from QUIC the capability to transmit both reliable streams and unreliable datagrams over a single connection. The abovementioned capability and...
Decisions
As an essence of the presentation, priority of certain parts of the stream would be matching with QUIC concepts, which is able to drop low-priority parts of the stream. Multiple levels of priority are possible, multiple streams.
Citation
Abstract
This informational proposal provides the results and analysis of Temporal Scalability approach under ultra-low latency (ULL) test scenario investigated by AhG18. The BD-PSNR results demonstrate a performance of this technique under ULL test conditions: 0.74 dB increase on average for classes A & B at same latency restrictions for IPPI configuration (3dB for A1 class). Freezing time is decreased by 10% on average for class A1, but for other classes the improvements is not such obvious. Demo videos solution are provided in the same conditions.
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JVET-AM0198 AhG18: Temporal Scalability under ultra low latency test scenario [M. Sychev, K. Malyshev, S. Ikonin, E. Alshina (Huawei)]
This informational proposal provides the results and analysis of Temporal Scalability approach under ultra-low latency (ULL) test scenario investigated by AhG18. The BD-PSNR results demonstrate a performance of this technique under ULL test conditions: 0.74 dB increase on average for classes A & B at same latency restrictions for IPPI configuration (3dB for A1 class). Freezing time is decreased by 10% on average for class A1, but for other classes the improvements is not such obvious. Demo videos solution are provided in the same conditions.
No action – does not require modification of software.
Decisions
No action – does not require modification of software.
Citation