AVTEXT Audio/Video Transport Extensions
 
13:00 - 15:00 11/5/2015 Room: 411/412
 
Chairs: Jonathan Lennox and Rachel Huang (New chair)
Responsible Area Director: Ben Campbell
Notetakers: Roni Even, Stephan Wenger.
 
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Agenda bash and status update
 
Status of working group drafts
   draft-ietf-avtext-rtp-grouping-taxonomy-08 -[AUTH48]
   draft-ietf-avtext-rtp-stream-pause-10 - [RFC Ed Queue]
   draft-ietf-avtext-splicing-notification-02 - [IESG Review]
   draft-ietf-avtext-sdes-hdr-ext-02 - [WGLC Complete]
 
3GPP liaison - should we respond?
Action: Just send acknowledge the liaison. Roni will send text of a response to the list.
 
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Frame Marking RTP Header Extension (Mo Zanaty)
 
discussion: the mapping of layer_id relative to positioning in the decoding structure
conclusion: add text explaining how the various fields form a "hierarchy" that would be useful without knowing the payload type.
 
discussion: TL0PICIDX
Conclusion: include TL0PICIDX as proposed.
 
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The Layer Refresh Request (LRR) RTCP Feedback Message (Jonathan Lennex)
 
discussion: move VP9 syntax to VP9 payload draft?
conclusion: move VP9 LRR over to VP9 payload draft.
 
discussion: FIR for spatial MRST/MRMT
conclusion: propose a new draft for full intra for all layers to update RFC5104. Stephan W. will write the draft.
 
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RTP Extensions for Transport-wide Congestion Control (Stefan Holmer)
 
Discussion about the RTP and RTCP approach of single sequence number space per connection for all streams (Colin, Michael Ramallo, Justin, Randell via Jabber, Thatcher, Harald, Jonathan, Varun, Roni, Magnus).
Conclusion: No decision. Relevant people have side discussion. Discussion continues in rmcat. probably in scope here or in xrblock.
 
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RTP Payload Format Constraints (Adam Roach)
 
Conclusion: Agree to have a document to regiter the rid only as RTP and RTCP sdes. Need to specify what is the content and usage. Adam will produce draft addressing comments, and once submitted ask for adoption.