Re: [rtcweb] media rollback and glare
"Rauschenbach, Uwe (NSN - DE/Munich)" <uwe.rauschenbach@nsn.com> Thu, 08 August 2013 14:51 UTC
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From: "Rauschenbach, Uwe (NSN - DE/Munich)" <uwe.rauschenbach@nsn.com>
To: "rtcweb@ietf.org" <rtcweb@ietf.org>
Thread-Topic: [rtcweb] media rollback and glare
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Date: Thu, 08 Aug 2013 14:51:00 +0000
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Subject: Re: [rtcweb] media rollback and glare
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Hi, +1 In the Open Mobile Alliance, a REST API is being defined, intended to be exposed by a gateway that offers WebRTC access to IMS (or even PSTN). For that work, it is also necessary to understand how rollback will work in the PeerConnection API. Kind regards, Uwe Rauschenbach -- Dr. Uwe Rauschenbach Senior Specialist NSN, Technology & Innovation St.-Martin-Str. 76, D-81541 Munich, Germany Tel.: +49 89 5159 29751 Mobile: +49 173 3083573 Nokia Siemens Networks Management International GmbH Geschäftsleitung / Board of Directors: Andreas Sauer, Ralf Dietzel Sitz der Gesellschaft: München / Registered office: Munich Registergericht: München / Commercial registry: Munich, HRB 198081 -------------------------------------------- From: rtcweb-bounces@ietf.org [mailto:rtcweb-bounces@ietf.org] On Behalf Of ext Andrea Dixon Sent: Thursday, August 08, 2013 12:17 PM To: rtcweb@ietf.org Subject: [rtcweb] media rollback and glare The Webrtc spec states: "This API changes the local media state. In order to successfully handle scenarios where the application wants to offer to change from one media format to a different, incompatible format, the RTCPeerConnection must be able to simultaneously support use of both the old and new local descriptions (e.g. support codecs that exist in both descriptions) until a final answer is received, at which point the RTCPeerConnection can fully adopt the new local description, or roll back to the old description if the remote side denied the change. Issue 8 ISSUE: how to indicate to roll back?" When will rollback be added to webrtc? Is it imminent? We need it to resolve glare scenarios where both peers renegotiate at the same time. Or is there another way of resolving glare in webrtc? This is becoming a pressing concern. Regards -------------------- Note: The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. Thrupoint, Inc. nXaR2cC3
- [rtcweb] media rollback and glare Andrea Dixon
- Re: [rtcweb] media rollback and glare Rauschenbach, Uwe (NSN - DE/Munich)
- Re: [rtcweb] media rollback and glare Justin Uberti