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Inter-Destination Media Synchronization (IDMS) Using the RTP Control Protocol (RTCP) (RFC7272) Disclosure Number: IPCOM000237643D
Original Publication Date: 2014-Jun-01
Included in the Prior Art Database: 2014-Jul-01
Document File: 46 page(s) / 56K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. van Brandenburg: AUTHOR [+5]


IDMS refers to the playout of media streams at two or more geographically distributed locations in a time-synchronized manner. It can be applied to both unicast and multicast media streams and can be applied to any type and/or combination of streaming media, such as audio, video, and text (subtitles). [Ishibashi2006] and [Boronat2009] provide an overview of technologies and algorithms for IDMS.

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Internet Engineering Task Force (IETF)                R. van Brandenburg Request for Comments: 7272                                   H. Stokking Category: Standards Track                                O. van Deventer ISSN: 2070-1721                                                      TNO                                                               F. Boronat                                                              M. Montagud                                                                      UPV                                                                 K. Gross                                                             AVA Networks                                                                June 2014

              Inter-Destination Media Synchronization (IDMS)                  Using the RTP Control Protocol (RTCP)


   This document defines a new RTP Control Protocol (RTCP) Packet Type    and an RTCP Extended Report (XR) Block Type to be used for achieving    Inter-Destination Media Synchronization (IDMS).  IDMS is the process    of synchronizing playout across multiple media receivers.  Using the    RTCP XR IDMS Report Block defined in this document, media playout    information from participants in a synchronization group can be    collected.  Based on the collected information, an RTCP IDMS Settings    Packet can then be sent to distribute a common target playout point    to which all the distributed receivers, sharing a media experience,    can synchronize.

   Typical use cases in which IDMS is useful are social TV, shared    service control (i.e., applications where two or more geographically    separated users are watching a media stream together), distance    learning, networked video walls, networked loudspeakers, etc.

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 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

van Brandenburg, et...