W3C

– DRAFT –
WebRTC December 2021 Virtual Interim

14 December 2021

Attendees

Present
Ben Wagner, Bernard Aboba (BA), Brian Baldino, Carine, Dominique Hazael-Massieux (DHM), Elad Alon (EA), Florent Castelli, Guido Urdaneta, Harald Alvestrand (HA), Jan-Ivar Bruaroey (JIB), Patrick Rockhill, Randell Jesup (RJ), Tim Panton (Tim), Tony Herre, Tove Petersson, youenn fablet (YF)
Regrets
-
Chair
Bernard, Harald, Jan-Ivar
Scribe
Ben Wagner, scribe

Meeting minutes

Slideset: https://lists.w3.org/Archives/Public/www-archive/2021Dec/att-0003/WEBRTCWG-2021-12-14.pdf

Call for Adoption of Region Capture 🎬

[ Slide 11 ]

JIB presents

[ Slide 12 ]

YF presents

EA discusses counterpoints to the objections

Tim, JIB, EA, BA, HA discuss security implications

YF and EA discuss the scope of the work

Call for Adoption of Media Capture Transform 🎬

[ Slide 14 ]

YF presents; BA adds a detail

HA and YF discuss counterpoints to the concerns

BA discusses consistency of APIs

RESOLUTION: Because no objections to the CfA, the CfA of Media Capture Transform is approved.

[ Slide 15 ]

JIB provides response to the concerns in slide 14, BA and JIB discuss error handling

WebRTC Encoded Transform - key frame request API 🎬

[ Slide 18 ]

[ Slide 19 ]

[ Slide 20 ]

[ Slide 21 ]

slide 18-21: YF presents; BA asks for a clarification

HA explains why there is a timestamp

[ Slide 22 ]

slide 22: YF presents; HA, YF, BA, Tim discuss

BA suggests that we make some revisions then send for a CfC on the PR preview of the change. YF, HA, BA, JIB, and DHM discuss the process.

RESOLUTION: revise proposal for key frame API as a pull request and run a CfC on the PR preview.

Issue #2698 / PR #2704 - add PAC timer; "new"→"failed" 🎬

[ Slide 26 ]

[ Slide 27 ]

slide 26-27: JIB presents

RESOLUTION: PR 2704 has consensus.

Issue 47: RTP Header Extension Encryption 🎬

[ Slide 28 ]

[ Slide 29 ]

slide 28-29: BA presents; BA, HA, and Tim discuss

Next step: HA will send a note to AVTCORE WG about the problem.

EA asks for clarification on the result of the CfA on Region Capture. BA suggests additional clarification on the document. Once revisions are made, the WG chairs will make a decision.

Issue 69: ptime is mentioned but not actually settable 🎬

[ Slide 30 ]

[ Slide 31 ]

slide 30-31: BA presents; Tim expresses strong support

Decision to merge PR to extensions, with a note that it has not been implemented.

WebRTC-NV Use Cases CfC 🎬

[ Slide 34 ]

[ Slide 35 ]

slide 34-35: BA presents

Low-latency P2P Broadcast 🎬

Tim states that the wording is confusing and discusses the comments in support and objections. HA clarifies; suggests rewording the use case and adopting. BA discusses additional suggestions and responses to objections. JIB feels we should object to the use case until it's clarified.

Next steps – PR to revise the use case. Tim will send a PR and chairs will comment.

RJ and BA discuss meaning of P2P and its implications with low-latency. Tim, BA, RJ, and HA discuss additional points.

Decentralized Internet 🎬

[ Slide 36 ]

slide 36: Tim and BA discuss. RJ is concerned about the amount of work and security/privacy/resource usage implications. BA asks Tim if the people interested in decentralized internet would be able to attend the WG meeting. RJ points out additional concerns about user consent. Tim and RJ discuss. BA suggests next steps – invite additional people for discussion at a future meeting. JIB discusses using fetch to satisfy the use case. HA suggests that we settle on the use case before discussing the implementation.

Reduced Complexity Signaling 🎬

slide 36: HA discusses point on the slide. Tim explains motivation for the use case. HA and Tim discuss negotiation and signaling. BA, Tim discuss. HA suggests that the use case should be adopted with a note about security. Next step – redesign as a higher-level requirement without specific implementations.

requirements N30, N31, N32, N33 🎬

[ Slide 37 ]

slide 37: BA presents; comments with HA, RJ; Tim explains motivation for some requirements. BA, RJ, Tim, JIB discuss. Next step on N30-N32 - revise, particularly wrt "interruption" and follow up on YF's PR. Tim and RJ discuss N33.

requirements N34, N35, N36, N37, N38, N39 🎬

[ Slide 38 ]

[ Slide 39 ]

slide 38-39: BA presents; Tim clarifies the motivation for the use-cases. HA, RJ, and BA discuss.

discussion of next steps. HA, Tim, BA, JIB discuss. Suggestion is to edit and revise.

Summary of resolutions

  1. Because no objections to the CfA, the CfA of Media Capture Transform is approved.
  2. revise proposal for key frame API as a pull request and run a CfC on the PR preview.
  3. PR 2704 has consensus.
Minutes manually created (not a transcript), formatted by scribe.perl version 185 (Thu Dec 2 18:51:55 2021 UTC).