The main difference from the last version is that we moved all clock-source related stuff to a separate draft (draft-williams-avtcore-clksrc-00), as agreed during the Taipei meeting. This way, we have a more modular approach. Furthermore, we have done a clean-up of the rest of the document, especially regarding language and terminology.
During the Paris meeting, we hope to present both the Clock Source draft and the changes to the IDMS draft.
A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Audio/Video Transport Core Maintenance Working Group of the IETF.
Title : RTCP for inter-destination media synchronization
Author(s) : Ray van Brandenburg
Filename : draft-ietf-avtcore-idms-03.txt
Pages : 21
Date : 2012-03-09
This document gives information on an RTCP Packet Type and RTCP XR
Block Type including associated SDP parameters for Inter-Destination
Media Synchronization (IDMS). The RTCP XR Block Type, registered
with IANA based on an ETSI specification, is used to collect media
playout information from participants in a group playing-out
(watching, listening, etc.) a specific RTP media stream. The RTCP
packet type specified by this document is used 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 usefull 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.