IETF AVTCORE WG meeting minutes

Thursday, 30 July, 2020  13:00 - 13:50 UTC

Audio/Video Transport Core Maintenance (avtcore) Working Group

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CHAIRS:  Jonathan Lennox    

         Bernard Aboba      

Note taker: Stephan Wenger

AGENDA

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0. Administrative, Meetecho tips

1. Note Well, Note Takers, Agenda Bashing - (Chairs, 13:00, 10 min)

   Thank you to Rachel and Roni - welcome to Bernard!

One agenda bash; brief discussion on header encryption added since original agenda.  No other changes requested.

   Published RFCs:

       RFC 8759 (was draft-ietf-payload-rtp-ttml)

   Status of working group drafts:

      draft-ietf-avtext-rid-09

                    [RFC Editor Queue: AUTH48]

      draft-ietf-avtcore-multiplex-guidelines-12

      draft-ietf-payload-tsvcis-05

                    [RFC Editor Queue: EDIT]

      draft-ietf-avtcore-multi-media-rtp-session-13

      draft-ietf-avtcore-rtp-multi-stream-optimisation-12

                    [RFC Editor Queue: RFC-EDITOR]

      draft-ietf-avtext-lrr-07

                    [RFC Editor Queue: MISREF]

      draft-ietf-avtcore-cc-feedback-message-07

    [Publication Requested]

      draft-ietf-payload-vp9-10

                    [Ready for WGLC?]. No one voiced a different opinion.

      draft-ietf-payload-rtp-jpegxs-03

                    [In progress]

      draft-ietf-payload-tetra-03

            [expired, new version required]

      draft-ietf-avtext-framemarking-10

    [Completed WGLC, draft expired, new version required]

Mo: outstanding update need to be made for Dale’s comments.  This week.

Dale’s comments were long but looked like they could be dealt with.

2. Multi-party real-time text (Gunnar Hellström, 13:10, 15 min)

      draft-ietf-avtcore-multi-party-rtt-mix-07

      draft-hellstrom-avtcore-multi-party-rtt-solutions-02

Slides were presented.

Requests draft-hellstrom-avtcore-multi-party-rtt-solutions-02 to become WG draft

(13:17) Regarding rtt-mix-07, three options defined in draft, want to reduce to two. 

(13:27) #1 required for compatibility w/ current endpoints, but what about #2, and #3.  #2 seems good enough.  OK?

(13:29) Jonathan: yes, just go with 1+2. 

13:29: informational doc as WG document?  Stephan: read and found useful.  Jonathan: out to the list for WG adoption call 

3. RTP Header Extension Encryption (Justin Uberti, 13:25, 5 min)

      RFC 6904

13:31: slides were presented

13:38: Side Meeting is planned on RTP Header Extension Encryption, today (7/30), 16:00 UTC, https://meet.google.com/awy-bndk-pgi

4. RTP Payload for VVC (Shuai Zhao, 13:30, 10 min)

      draft-ietf-avtcore-rtp-vvc-02

13:40 slides presented

13:48: Stephan clarified reasoning behind use of R bit.  No further comments.

5. RTP Payload for EVC (Shuai Zhao, 13:40, 5 min)

      draft-zhao-avtcore-rtp-evc-02

13:50: slides were presented

13:53: Jonathan: in scope, and should be fine technically.  Call for adoption soon.

Stephan: relevance of frame marking

Bernard?: removed form webrtc

Stephan: will start discussion about it on list

6. Multiplexing Scheme Updates for QUIC (Bernard Aboba, 13:45, 5 min)

      draft-aboba-avtcore-rfc7983bis-00

13:55 slides were presented

RFC7983bis as WG item?  Call on list.