A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Audio/Video Transport Working Group of the IETF.
Title : Extended RTP Profile for RTCP-based Feedback(RTP/AVPF)
Author(s) : J. Ott, S. Wenger, N. Sato
Filename : draft-ietf-avt-rtcp-feedback-05.txt
Pages : 50
Date : 2003-3-4
Real-time media streams that use RTP are not resilient against
packet losses. Receivers may use the base mechanisms of RTCP to
report packet reception statistics and thus allow a sender to adapt
its transmission behavior in the mid-term as sole means for
feedback and feedback-based error repair (besides a few codec-
specific mechanisms). This document defines an extension to the
Audio-visual Profile (AVP) that enables receivers to provide,
statistically, more immediate feedback to the senders and thus
allow for short-term adaptation and efficient feedback-based repair
mechanisms to be implemented. This early feedback profile (AVPF)
maintains the AVP bandwidth constraints for RTCP and preserves
scalability to large groups.
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