VSF TR-07 & TR-08 File Exchange and Revision Summary Report

Presenters : John Dale - Media Links

Year : 2022

dlp_document_download : VSF JPEG XS Technical Recommendations and File Exchange ReportJohn Dale, Media Links. VSF JPEG XS Activity Group Chair VSF JPEG XS Technical Recommendations and File Exchange ReportJohn Dale, Media Links. VSF JPEG XS Activity Group Chairjdale@medialinks.comIntroductions 1.TR Objective/Output Review2.Liaison & Industry Standards3.File Exchange Status4.Document Status5.Next StepsPresentation Outline §Create a technical recommendation primarily focused on WAN applications which utilizes JPEG XS coding and MPEG2TS/SMPTE 2022-2 Encapsulation (TR-07)§Create technical recommendation focused on LAN/WAN applications for JPEG XS coding utilizing SMPTE 2110-22 Encapsulation (TR-08)1. Objective/Output Review §Develop interoperable capability sets which include multiple interoperability points for specific target applications/conformance levels_Applications/conformance levels include typical broadcast 2K formats, frame rates, sampling_Applications/conformance levels for 4K & 8K resolutions inc. WCG and HDR_Applications/conformance levels for multi-media extensions including RGB, 4:4:4 sampling. 8bit and 12bit depth§Includes applicable recommendations for a complete system including video, audio ancillary data, and robust transmission§Liaise with other organizations as needed§Organize file exchange online workshop1. Objective/Output Review Collaborate Liaison with other standards organizations to support the work§IETF for the JPEG XS RTP Specification"RTP Payload Format for ISO/IEC 21122 (JPEG XS)" moved to a standard RFC, which is RFC-9134§ISO/IEC for JPEG XS Level/SubLevelRequest specific level for 720p; 1K-1, also sublevel of 4bppand allow 4:2:0 in High444.12 Level§ISO/IEC for MPEG2TS ClarificationsSome clarifications at the MPEG2TS layer for header boxesCoordinate with other VSF Activity Groups via participation2. Liaison & Industry Standards TR-07 File Exchangeand TR-08 File Exchange has been completed§1080p & 1080i JPEG XS Encoded streams were provided§Files were posted to a common area and other participants were able to review and analyze the files§The file exchange activity is complete§Input from reviewer’s comments has been considered for TR revisions3. File Exchange Status TR-07 File Exchange has 6 participants with 90% of the file reviews completedParticipating: Appear, Artel, Evertz, Media Links, Net Insight, RiedelMost files were capable of being analyzed with decodable JPEG XS CodestreamsSome header inconsistencies§Most files (almost all) were capable of being analyzed and had decodable JPEG XS Codestreams§Would judge file exchange as a success§Revisions of TR-08 to address referenced documents conflicting input on field/frame RTP timestamping§Revisions of TR-07 & TR-08 should help to address header issues with more clarity around header definition and reference to updated MPEG and JPEG documents3. File Exchange Status TR-08 File Exchange has 9 participants with 76% of the file reviews completedParticipating: Appear, AWS/Elemental, Evertz, Imagine, IntoPix, Media Links, Nevion, Riedel, Sumavision§Most files (almost all) were capable of being analyzed and had decodable JPEG XS Codestreams§Would judge file exchange as a success§Some Timestamping inconsistencies§Some header inconsistencies3. File Exchange Status TR-07 & TR-08§2022 Revisions of TR-07 and TR-08 have been completed and published on VSF’s web site4. Document Status TR-07 2022 Revision Highlights§ISO/IEC 21122-1:2019"Information technology —JPEG XS Low-latency Lightweight Image Coding System —Part 1, Part 2, Part 3" moved to 2022revised document§Amongst other items there will now be a 4bpp sublevel§Color Specification & Dynamic Range table now includes examples of Wide Color Gamut§Implementers should note that table 2-132 of Rec. ITU-T H.222.0 defining the JXS_video_descriptorcontains an error. This error will be addressed in ISO/IEC 13818-1 (2021)/AMD1 by removing the descriptor_tagand descriptor_lengthfields from the table. We anticipate AMD1 will be published in 2022.4. Document Status TR-08 2022 Revision Highlights§ISO/IEC 21122-1:2019"Information technology —JPEG XS Low-latency Lightweight Image Coding System —Part 1, Part 2, Part 3" moved to 2022revised document§Amongst other items there will now be a High 4:2:0 profile and 4bpp sublevel§Color Specification & Dynamic Range table now includes examples of Wide Color Gamut§New wording: For interlaced signals, the Interlace_Modeof the frat field of all JPEG XS picture segments shall be set to ‘1’ (note: indicating that the first picture of a frame is the first video field, and the second picture of a frame is the second video field). For progressive signals, the Interlace_Modeof the frat field shall be set to ‘0’§Appendix A, SDP Example was corrected for prior rate error4. Document Status 5. Next Steps1.2022 Revisions of TR-07 & TR-08 Published on VSF website2.Live Interop Demonstrationsat Video Service Forum planned for VidTrans2022 in June2.Potential SDP File Exchange and NMOS Workshops Thank YouJohn Dale, Media Links. jdale@medialinks.com JPEG XS is ISO/IEC standard, 21122, (JPEG XS), designed for latency-critical real time applications and offering near lossless and visually lossless quality with low complexity§Applicable to SD, HD, UHD, and HDR/WCG content§1.4-4 bppcompression (7:1 -2.5:1)§Robust over multiple coding cycles§Low power consumption (less processing and memory needed)§Both Ground and Cloud Friendly (ground thrower/cloud catcher) X. JPEG XS Overview