Re: [rtcweb] RTCWeb default signaling protocol [was RE: About defining a signaling protocol for WebRTC (or not)]
Henry Sinnreich <henry.sinnreich@gmail.com> Tue, 20 September 2011 19:48 UTC
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Date: Tue, 20 Sep 2011 14:50:42 -0500
From: Henry Sinnreich <henry.sinnreich@gmail.com>
To: Hadriel Kaplan <HKaplan@acmepacket.com>, Randell Jesup <randell-ietf@jesup.org>
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Thread-Topic: [rtcweb] RTCWeb default signaling protocol [was RE: About defining a signaling protocol for WebRTC (or not)]
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Cc: "<rtcweb@ietf.org>" <rtcweb@ietf.org>
Subject: Re: [rtcweb] RTCWeb default signaling protocol [was RE: About defining a signaling protocol for WebRTC (or not)]
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+1 > A full mesh is what *should* happen, but SIP/SDP can't do it, afaict. It > would treat them either as independent calls even at a media layer, or as a > full-mixer conference focus model. The closest thing we have would probably > be the Join header, but I believe it's semantics is to join as a full mixer > conf call. Isn't this full-mesh media-forking thing actually a new semantic > for SIP/SDP? (it's hard to believe with 100+ drafts/RFCs this scenario hasn't > already been addressed in SIP - I must be just having a memory leak) Thanks, Henry On 9/20/11 2:19 AM, "Hadriel Kaplan" <HKaplan@acmepacket.com> wrote: > > On Sep 20, 2011, at 2:39 AM, Randell Jesup wrote: > >> On 9/20/2011 1:59 AM, Hadriel Kaplan wrote: >>> OK, let's take the game example... only 2-player games would be able to use >>> a simple rtcweb-SIP agent. Anything more than 2-player would want to use >>> the multi-party "conferencing" model of rtcweb, which can't even be signaled >>> with SIP today as far as I can tell. (not that I've thought about it too >>> much, but I can't see how it would without some changes to SIP) >> >> It should be easy - either as N-1 2-person calls to the person hosting the >> game, or >> N calls via a central server (equivalent to a mixer), or as a full mesh of >> direct >> calls (3 2-person calls for a 3-person game, 6 for a 4-person game, etc), or >> even >> sparse meshes (makes sense in a game where not all players are 'near' each >> other). > > Can't do N-1 2-person calls to the person hosting the game, because rtcweb > doesn't support "full" mixing in the browser, only local media mixing. (ie, > everyone will hear the person hosting the game, and the person hosting the > game will hear everyone else, but the rest won't hear each other) > > Calls via a central media server require a central media server, which kinda > defeats the "easy" concept and using our shiny new toy of rtcweb. > > A full mesh is what *should* happen, but SIP/SDP can't do it, afaict. It > would treat them either as independent calls even at a media layer, or as a > full-mixer conference focus model. The closest thing we have would probably > be the Join header, but I believe it's semantics is to join as a full mixer > conf call. Isn't this full-mesh media-forking thing actually a new semantic > for SIP/SDP? (it's hard to believe with 100+ drafts/RFCs this scenario hasn't > already been addressed in SIP - I must be just having a memory leak) > > -hadriel > > _______________________________________________ > rtcweb mailing list > rtcweb@ietf.org > https://www.ietf.org/mailman/listinfo/rtcweb
- Re: [rtcweb] About defining a signaling protocol … Bernard Aboba
- [rtcweb] About defining a signaling protocol for … Iñaki Baz Castillo
- Re: [rtcweb] About defining a signaling protocol … Henry Sinnreich
- Re: [rtcweb] About defining a signaling protocol … Roman Shpount
- Re: [rtcweb] About defining a signaling protocol … Victor Pascual
- Re: [rtcweb] About defining a signaling protocol … Prakash
- Re: [rtcweb] About defining a signaling protocol … Saúl Ibarra Corretgé
- [rtcweb] About defining a signaling protocol for … gao.yang2
- Re: [rtcweb] About defining a signaling protocol … Avasarala, Ranjit
- Re: [rtcweb] About defining a signaling protocol … Matthew Kaufman
- Re: [rtcweb] About defining a signaling protocol … Ravindran Parthasarathi
- Re: [rtcweb] About defining a signaling protocol … Soo-Hyun Choi
- Re: [rtcweb] About defining a signaling protocol … José Luis Millán
- Re: [rtcweb] About defining a signaling protocol … Saúl Ibarra Corretgé
- Re: [rtcweb] About defining a signaling protocol … Iñaki Baz Castillo
- Re: [rtcweb] About defining a signaling protocol … Tim Panton
- Re: [rtcweb] About defining a signaling protocol … Iñaki Baz Castillo
- Re: [rtcweb] About defining a signaling protocol … Lorenzo Miniero
- Re: [rtcweb] About defining a signaling protocol … Iñaki Baz Castillo
- Re: [rtcweb] About defining a signaling protocol … Harald Alvestrand
- Re: [rtcweb] About defining a signaling protocol … Henry Sinnreich
- [rtcweb] RTCWeb default signaling protocol [was R… Ravindran Parthasarathi
- Re: [rtcweb] RTCWeb default signaling protocol [w… Roman Shpount
- Re: [rtcweb] RTCWeb default signaling protocol [w… Hadriel Kaplan
- Re: [rtcweb] RTCWeb default signaling protocol [w… Jim McEachern
- Re: [rtcweb] RTCWeb default signaling protocol [w… Avasarala, Ranjit
- Re: [rtcweb] RTCWeb default signaling protocol [w… Saúl Ibarra Corretgé
- Re: [rtcweb] RTCWeb default signaling protocol [w… Saúl Ibarra Corretgé
- Re: [rtcweb] RTCWeb default signaling protocol [w… Muthu Arul Mozhi Perumal (mperumal)
- Re: [rtcweb] RTCWeb default signaling protocol [w… Iñaki Baz Castillo
- Re: [rtcweb] RTCWeb default signaling protocol [w… Iñaki Baz Castillo
- Re: [rtcweb] RTCWeb default signaling protocol [w… Tim Panton
- [rtcweb] SDP offer/answer vs. JSON (was: About de… Hadriel Kaplan
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ted Hardie
- Re: [rtcweb] RTCWeb default signaling protocol [w… cbran
- Re: [rtcweb] RTCWeb default signaling protocol [w… Hadriel Kaplan
- Re: [rtcweb] RTCWeb default signaling protocol [w… Stephan Wenger
- Re: [rtcweb] RTCWeb default signaling protocol [w… Matthew Kaufman
- Re: [rtcweb] About defining a signaling protocol … Matthew Kaufman
- Re: [rtcweb] RTCWeb default signaling protocol [w… Matthew Kaufman
- Re: [rtcweb] ICE and security Olle E. Johansson
- Re: [rtcweb] RTCWeb default signaling protocol [w… Olle E. Johansson
- Re: [rtcweb] ICE and security Dzonatas Sol
- Re: [rtcweb] ICE and security Hadriel Kaplan
- Re: [rtcweb] RTCWeb default signaling protocol [w… Hadriel Kaplan
- Re: [rtcweb] ICE and security Dzonatas Sol
- Re: [rtcweb] ICE and security Eric Rescorla
- Re: [rtcweb] About defining a signaling protocol … Harald Alvestrand
- Re: [rtcweb] ICE and security Harald Alvestrand
- Re: [rtcweb] About defining a signaling protocol … Timothy B. Terriberry
- Re: [rtcweb] ICE and security Dzonatas Sol
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ravindran Parthasarathi
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… José Luis Millán
- Re: [rtcweb] RTCWeb default signaling protocol [w… Hadriel Kaplan
- Re: [rtcweb] RTCWeb default signaling protocol [w… Markus.Isomaki
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] ICE and security Dan Wing
- Re: [rtcweb] RTCWeb default signaling protocol [w… Olle E. Johansson
- Re: [rtcweb] RTCWeb default signaling protocol [w… Iñaki Baz Castillo
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Eric Rescorla
- Re: [rtcweb] SDP offer/answer vs. JSON (was: Abou… Henry Sinnreich
- Re: [rtcweb] RTCWeb default signaling protocol [w… Jim McEachern
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Saúl Ibarra Corretgé
- Re: [rtcweb] SDP offer/answer vs. JSON Magnus Westerlund
- [rtcweb] Data Transport, was: Re: RTCWeb default … Magnus Westerlund
- Re: [rtcweb] RTCWeb default signaling protocol [w… Igor Faynberg
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Olle E. Johansson
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Timothy B. Terriberry
- Re: [rtcweb] RTCWeb default signaling protocol [w… Dzonatas Sol
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Harald Alvestrand
- Re: [rtcweb] RTCWeb default signaling protocol [w… Saúl Ibarra Corretgé
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Matthew Kaufman
- Re: [rtcweb] RTCWeb default signaling protocol [w… Roman Shpount
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ravindran Parthasarathi
- Re: [rtcweb] RTCWeb default signaling protocol [w… Hadriel Kaplan
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Hadriel Kaplan
- Re: [rtcweb] RTCWeb default signaling protocol [w… Saúl Ibarra Corretgé
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Iñaki Baz Castillo
- Re: [rtcweb] RTCWeb default signaling protocol [w… Hadriel Kaplan
- Re: [rtcweb] RTCWeb default signaling protocol [w… Olle E. Johansson
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ravindran Parthasarathi
- Re: [rtcweb] RTCWeb default signaling protocol [w… Hadriel Kaplan
- Re: [rtcweb] RTCWeb default signaling protocol [w… Olle E. Johansson
- Re: [rtcweb] RTCWeb default signaling protocol [w… Iñaki Baz Castillo
- Re: [rtcweb] RTCWeb default signaling protocol [w… Iñaki Baz Castillo
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ravindran Parthasarathi
- Re: [rtcweb] RTCWeb default signaling protocol [w… José Luis Millán
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Magnus Westerlund
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ted Hardie
- Re: [rtcweb] RTCWeb default signaling protocol [w… Dzonatas Sol
- Re: [rtcweb] SDP offer/answer vs. JSON (was: Abou… Elwell, John
- Re: [rtcweb] SDP offer/answer vs. JSON Dzonatas Sol
- Re: [rtcweb] SDP offer/answer vs. JSON Dzonatas Sol
- Re: [rtcweb] RTCWeb default signaling protocol [w… Henry Sinnreich
- [rtcweb] "20 lines" (Re: RTCWeb default signaling… Harald Alvestrand
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Harald Alvestrand
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Iñaki Baz Castillo
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Iñaki Baz Castillo
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Colin Perkins
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Hadriel Kaplan
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Hadriel Kaplan
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Colin Perkins
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Hadriel Kaplan
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Olle E. Johansson
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Saúl Ibarra Corretgé
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Iñaki Baz Castillo
- Re: [rtcweb] Data Transport, was: Re: RTCWeb defa… Randell Jesup
- [rtcweb] SCTP for data channels in rtcweb Randell Jesup
- Re: [rtcweb] SCTP for data channels in rtcweb Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ravindran Parthasarathi
- Re: [rtcweb] RTCWeb default signaling protocol [w… Roman Shpount
- Re: [rtcweb] RTCWeb default signaling protocol [w… Iñaki Baz Castillo
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Jozsef Vass
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Roman Shpount
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Saúl Ibarra Corretgé
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Iñaki Baz Castillo
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Iñaki Baz Castillo
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Jozsef Vass
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Jozsef Vass
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Iñaki Baz Castillo
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Ravindran Parthasarathi
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Iñaki Baz Castillo
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Ravindran Parthasarathi
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Iñaki Baz Castillo
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Ravindran Parthasarathi
- Re: [rtcweb] "20 lines" (Re: RTCWeb default signa… Saúl Ibarra Corretgé
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ravindran Parthasarathi
- Re: [rtcweb] RTCWeb default signaling protocol [w… Iñaki Baz Castillo
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ravindran Parthasarathi
- Re: [rtcweb] RTCWeb default signaling protocol [w… Saúl Ibarra Corretgé
- Re: [rtcweb] RTCWeb default signaling protocol [w… Tim Panton
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Eric Rescorla
- Re: [rtcweb] RTCWeb default signaling protocol [w… Jim McEachern
- Re: [rtcweb] RTCWeb default signaling protocol [w… Tim Panton
- Re: [rtcweb] RTCWeb default signaling protocol [w… Bernard Aboba
- Re: [rtcweb] RTCWeb default signaling protocol [w… Cullen Jennings
- Re: [rtcweb] RTCWeb default signaling protocol [w… Matthew Kaufman
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Matthew Kaufman
- Re: [rtcweb] RTCWeb default signaling protocol [w… Randell Jesup
- Re: [rtcweb] RTCWeb default signaling protocol [w… Cameron Byrne
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ravindran Parthasarathi
- Re: [rtcweb] RTCWeb default signaling protocol [w… Ravindran Parthasarathi
- Re: [rtcweb] RTCWeb default signaling protocol [w… Asveren, Tolga
- Re: [rtcweb] RTCWeb default signaling protocol [w… Saul Ibarra Corretge