IETF MOQ WG: Knowing the start of a Subgroup

Message Snapshot

• List: moq@ietf.org
• Thread subject: Knowing the start of a Subgroup
• Message subject: [Moq] Re: Knowing the start of a Subgroup
• Author: Suhas Nandakumar
• Published: 2026-04-30T17:12:31.000Z
• Source tag: ietf-mailing-list
• Message URL: Open in IETF Mail Archive

Summary

Suhas Nandakumar posted to the MOQ working group mailing list on April 30, 2026. As I shared my inputs during the call, SubgroupId has semantic meaning, they are part of prioritization and an essential tool for filterin…

Why It Matters

This message came from the public MOQ working group archive and captures active discussion, meeting coordination, or implementation feedback around Media over QUIC.

Message Excerpt

As I shared my inputs during the call, SubgroupId has semantic meaning, they are part of prioritization and an essential tool for filtering. I also agree having relays knowing the first object in a sub-group is useful and

Plain-Text Body

As I shared my inputs during the call, SubgroupId has semantic meaning, they are part of prioritization and an essential tool for filtering. I also agree having relays knowing the first object in a sub-group is useful and making it explicit and not needing to muddle 2 different semantic entities is a good idea. It is expected for applications using layered codec and inter stream dependencies to have the subgroup carry the same meaning across groups, regardless of object numbering ( which is a in different semantic scope)

+1 to make this singal explicit and mandatory and also willing to have a config byte on the first object that identifies if it is the first object of group, track, sub-group. This info will be useful for caches and also for the end application to build their buffer logic.

Cheers Suhas

On Thu, Apr 30, 2026 at 9:40 AM Alan Frindell <afrind= 40meta.com@dmarc.ietf.org> wrote: