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SDP Superimposition Grouping framework

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Rohit Abhishek , Stephan Wenger
Last updated 2021-12-03 (Latest revision 2021-06-01)
Replaces draft-abhishek-mmusic-overlay-grouping
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document defines semantics that allow for signaling a new SDP group "supim" for superimposed media in an SDP session. The "supim" attribute can be used by the application to relate all the fully or partly superimposed visual media streams enabling them to be added as an overlay on top of any one or more background visual media streams. The superimposition grouping semantics is helpful if the media stream data is separate and transported via different sessions.


Rohit Abhishek
Stephan Wenger

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)