October 29 - October 30 2012

Logistics

IRC

As usual, #webrtc at irc.w3.org

Remote participation

UW_Web RTC Monday, 29 Oct - Tuesday, 30 Oct 07:00-18:00 UTC (3:00am-2:00pm Boston local) Zakim Bridge +1.617.761.6200, conference 9782 ("WRTC") 10 participants

Agenda

Monday morning 0830--1200

• welcome and stuff (15 min)

• API functionality (PeerConnection related) that has been discussed but is not currently supported, what of this should we support in v1? - Stefan (0845-1030 - 1h 45 min)
  • Sender side (all per track)
    • Priority
    • bandwidth
    • width/height
    • agc toggle switch
    • bw/cong. feedback
    • What can we do with constraints, what needs explicit API surface?
  • Receiver side
    • reject certain or all tracks in offer
      • should app be able to?
    • inform the sender of used / useful width/height
    • tell the sender that a stream/track is not played (paused/unattached/ended)
  • Not certain what side
    • Control of AEC (echo cancellation)
  • Agree on what of the above we need
    • What in v1; what we can move to v2 but “make room for” in v1; what we can’t see need for
    • One time, or possible to change?
  • Discussion leads to requirements to IETF on SDP and RTCP capabilities

• Coffee break 1030-1045

• SDP handling - Cullen (1045-1200 1h 15 min)
  • How long is an SDP created with createOffer/Answer valid?
  • Rollback funtionality
    • at setLocal(offer) at offerer
    • at setRemote(offer) at answerer
    • at setLocal(answer) at answerer
    • at setRemote(answer) at offerer
    • What does an application do to recover when the UA rejects the set* call?
    • What does an application tell the UA when a call is rejected?

• Lunch 1200-1300

Monday afternoon 1300-1800

• Implementation/testing status (1300-1330)

• General error handling principles - Anant (1330-1400)
  • Presentation of principles
  • Application to specific points in the API

• Call flows - Cullen’s sample flows - Cullen (1400-1500 - 1 hour)
  • Walk through a flow or two, verify that we understand what the transitions mean

• Coffee break (1500-1530)

• States - Cullen, Justin (1530-1630)
  • PeerConnection
  • ICE agent
  • What is exposed to application?

• Stats - Harald (1630-1730 - 1 hour)
  • Conclude stats model
    • Naming of stats
    • Grouping of stats objects
  • Specific stats for
    • Transports
    • ICE addresses / address pairs
    • ???

• Finish for the day (1800)

Tuesday morning 0830-1200

• Identity handling - EKR (0830-0930 - 1 hour)

• API functionality for remove stream - Harald (0930-0945 - 15 min)
  • Empty indices in local/remoteStreams or not?

• Conclude DTMF (we hope) - Harald, Justin (0945-1000 - 15 min)

• Any Other Business (1000-1200)
  • Items can be raised here from other slots at need

• End of WebRTC WG meeting (afternoon is Media Capture)

Media Capture TF meeting

See [1]

Presentations

• media:MoreAPIs.pdf Stefan's slides - very first, very rough draft (and there are trailing slides after 15 that should have been removed)
• media:TPAC_2012_WEBRTC_hta.pdf - HTA's slides on various points
• media:TPAC_2012_WebRTC_error.pdf - Anant's slides on error handling
• media:RTCWeb-SDP-API_v6.pdf‎ - Cullen/Martin slides on SDP
• media:WebRTC_CallFlow_v2.pdf - Cullen slides on Call Flows
• media:WebRTC_States_v2.pdf‎ - Cullen/Justin slides on States
• media:idp-issues.pdf - EKR slides on Identity
• media:TPAC 2012 - DTMF.pptx - Justin's slides on DTMF

Minutes

(anything below this is added after the meeting)