Simulcast and layered video coding support in WebRTC

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Last updated 2014-02-06 (latest revision 2013-08-05)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes the use cases and requirements for simulcast and layered video coding support in WebRTC. These techniques simplify the implementation of video stream adaptation to different participants in centralized conferencing solutions. This document also includes a proposal to expose these capabilities in the existing PeerConnection API by defining new media constraint properties.


Gustavo Garcia (

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