SDP Overlay Grouping framework for immersive telepresence media streams

Document Type Replaced Internet-Draft (individual)
Author Rohit Abhishek 
Last updated 2020-10-27
Replaces draft-overlay-grouping
Replaced by draft-abhishek-mmusic-superimposition-grouping
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Expired & archived
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IESG IESG state Replaced by draft-abhishek-mmusic-superimposition-grouping
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines semantics that allow for signalling a new SDP group "OL" for overlays in an immersive telepresence session. The "OL" attribute can be used by the application to relate all the overlay media streams enabling them to be added as overlay on top of the immersive video. The overlay grouping semantics is required, if the media data is seperate and transported via different protocols.


Rohit Abhishek (

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