Organisation internationale de normalisation


Plenary Discussions, Joint meetings, BoG Reports, and Summary of Actions Taken



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Plenary Discussions, Joint meetings, BoG Reports, and Summary of Actions Taken

  1. General


No general discussions noted.
    1. Project development


Joint meetings are discussed in this section of this report.

Joint session with VCEG & MPEG parent-level and JCT-VC and JCT-3V, chaired by JRO, GJS, & JO on Monday 10-20 1600-1800:

Non-4:4:4 for SCC? (e.g., JCTVC-S0042)


  • The contribution does not request a 4:2:0 profile, but requests the capability to be present in the 4:4:4-capable profile so that encoders can choose to use that.

  • Some participants indicated that if we think 4:2:0 is important, we should go ahead and define a profile for it.

  • Agreed: It was suggested to consider 4:4:4 the primary requirement, but try to also consider the potential application of the same coding tools for 4:2:0.

  • Decision: Adding new 4:2:0 coding capabilities would be adding some complexity to 4:4:4 decoders, but could be considered if the added complexity is not excessive and the benefit is significant – consider the complexity/benefit tradeoff. Profiling implications TBD.

(Outside of JCT-VC: JCT3V-J0106 Profiles, tiers, levels for 3D-HEVC – proposing one profile, very similar to MV-HEVC, with nested MV-HEVC decoding capability. Decision: Adopt (possibly with refinement of low-level aspects), with nested capability.)

SEI & VUI & CICP



  • JCTVC-S0148 End-of-picture indication for AVC & HEVC – OK.

  • JCTVC-S0031 / JCT3V-J0108 Frame packing for video with depth (and relationship with depth and texture view packing SEI message in AVC) – to be considered in JCT-3V – only interest if there's a significant benefit. JCT3V-J0109 is new proposed draft text, to be reviewed in JCT-3V to determine adequacy of editorial quality for proceeding with the ongoing work together with MFC+D.

  • JCTVC-S0197 VUI codepoint for SMPTE ST 2085 (YDzDx) for AVC & HEVC – proceed.

  • ST 2084 and 2086 for AVC – proceed.

  • m35153 P3 colour primaries in CICP ST 428-2 or maybe -1 – OK to support SMPTE specs.
    [Note also JEDEC P22 – TBD]

  • Green metadata – SEI message referring to another standard for the details.

Unlimited level / unconstrained profile for AVC & HEVC – still plan to do, but no draft yet

(Future video coding exploration (WCG/HDR, compression improvement (workshop), other))


Joint session of JCT-VC and JCT-3V, chaired by JRO Tueday 10-21 1000-1100:

(See additional notes in JCT-3V report.)



  • Reference software

    • It is desirable, and seems practical, for SHM to be able to decode MV-HEVC.

    • It is more essential for 3D-HEVC to be based on MV-HEVC RS codebase.

  • Conformance

    • Status of conformance testing development

    • Feasibility of joint development of MV-HEVC and SHVC conformance testing was discussed

    • Coordination of the formatting of data and additional information output as a log file to be produced by the decoder to determine how the decoder is handling the pictures in the bitstream and the output layer set information




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