JVET-U0092 Allocation of SEI message payload type for MPEG-I MIV/V3C carriage [J. Boyce (Intel)] [late]
It was proposed that a new v3c_metadata( ) SEI message payload type be allocated in the VVC, HEVC, and AVC specifications, with the SEI message payload to be defined by in the ISO/IEC 23090-10 V3C version 2 specification, for carriage of V3C/MIV metadata within a VVC, HEVC, or AVC bitstream.
A similar approach was used for the definition of the HEVC/AVC green metadata SEI message, in which the message payload was defined outside of the HEVC and AVC specifications, with the payload type allocated within the HEVC and AVC specs.
At the time of preparation of the -v1 version of this document, the related MPEG contribution m55800 had not yet been reviewed by the MIV or V-PCC groups in MPEG Video and MPEG 3DG.
It was commented that this would introduce an alternative way of conveying V3C/MIV data, as another approach is currently developed at systems level.
It is commented that carriage in the video stream might have advantages when the metadata information is time dependent.
It was generally agreed that this is an interesting concept that should be further studied. This required coordination with WGs 3&4&7, and so this was discussed further in a joint meeting. See the notest of that joint meeting in section 7.3.