JavaScript Session Establishment Protocol (JSEP)
RFC 8829
| Document | Type | RFC - Proposed Standard (January 2021; No errata) | |
|---|---|---|---|
| Authors | Justin Uberti , Cullen Jennings , Eric Rescorla | ||
| Last updated | 2021-01-20 | ||
| Replaces | draft-uberti-rtcweb-jsep | ||
| Stream | IETF | ||
| Formats | plain text html xml pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Ted Hardie | ||
| Shepherd write-up | Show (last changed 2017-07-06) | ||
| IESG | IESG state | RFC 8829 (Proposed Standard) | |
| Action Holders |
(None)
|
||
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Adam Roach | ||
| Send notices to | Ted Hardie <ted.ietf@gmail.com> | ||
| IANA | IANA review state | IANA OK - No Actions Needed | |
| IANA action state | No IANA Actions | ||
Internet Engineering Task Force (IETF) J. Uberti
Request for Comments: 8829 Google
Category: Standards Track C. Jennings
ISSN: 2070-1721 Cisco
E. Rescorla, Ed.
Mozilla
January 2021
JavaScript Session Establishment Protocol (JSEP)
Abstract
This document describes the mechanisms for allowing a JavaScript
application to control the signaling plane of a multimedia session
via the interface specified in the W3C RTCPeerConnection API and
discusses how this relates to existing signaling protocols.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
https://www.rfc-editor.org/info/rfc8829.
Copyright Notice
Copyright (c) 2021 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction
1.1. General Design of JSEP
1.2. Other Approaches Considered
1.3. Contradiction regarding bundle-only "m=" sections
2. Terminology
3. Semantics and Syntax
3.1. Signaling Model
3.2. Session Descriptions and State Machine
3.3. Session Description Format
3.4. Session Description Control
3.4.1. RtpTransceivers
3.4.2. RtpSenders
3.4.3. RtpReceivers
3.5. ICE
3.5.1. ICE Gathering Overview
3.5.2. ICE Candidate Trickling
3.5.2.1. ICE Candidate Format
3.5.3. ICE Candidate Policy
3.5.4. ICE Candidate Pool
3.5.5. ICE Versions
3.6. Video Size Negotiation
3.6.1. Creating an imageattr Attribute
3.6.2. Interpreting imageattr Attributes
3.7. Simulcast
3.8. Interactions with Forking
3.8.1. Sequential Forking
3.8.2. Parallel Forking
4. Interface
4.1. PeerConnection
4.1.1. Constructor
4.1.2. addTrack
4.1.3. removeTrack
4.1.4. addTransceiver
4.1.5. onaddtrack Event
4.1.6. createDataChannel
4.1.7. ondatachannel Event
4.1.8. createOffer
4.1.9. createAnswer
4.1.10. SessionDescriptionType
4.1.10.1. Use of Provisional Answers
4.1.10.2. Rollback
4.1.11. setLocalDescription
4.1.12. setRemoteDescription
4.1.13. currentLocalDescription
4.1.14. pendingLocalDescription
4.1.15. currentRemoteDescription
4.1.16. pendingRemoteDescription
4.1.17. canTrickleIceCandidates
4.1.18. setConfiguration
4.1.19. addIceCandidate
4.1.20. onicecandidate Event
4.2. RtpTransceiver
4.2.1. stop
4.2.2. stopped
4.2.3. setDirection
4.2.4. direction
4.2.5. currentDirection
4.2.6. setCodecPreferences
5. SDP Interaction Procedures
5.1. Requirements Overview
5.1.1. Usage Requirements
5.1.2. Profile Names and Interoperability
5.2. Constructing an Offer
5.2.1. Initial Offers
5.2.2. Subsequent Offers
5.2.3. Options Handling
5.2.3.1. IceRestart
5.2.3.2. VoiceActivityDetection
5.3. Generating an Answer
5.3.1. Initial Answers
5.3.2. Subsequent Answers
5.3.3. Options Handling
5.3.3.1. VoiceActivityDetection
5.4. Modifying an Offer or Answer
5.5. Processing a Local Description
5.6. Processing a Remote Description
5.7. Processing a Rollback
5.8. Parsing a Session Description
5.8.1. Session-Level Parsing
5.8.2. Media Section Parsing
5.8.3. Semantics Verification
5.9. Applying a Local Description
5.10. Applying a Remote Description
5.11. Applying an Answer
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