The Role of DMIF in Support of RTP MPEG-4 Payloads

Document Type Expired Internet-Draft (individual)
Author Vahe Balabanian 
Last updated 1998-09-21
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This draft technical proposal describes how RTP carrying MPEG-4 payloads interacts with the MPEG-4 Sync layer through the MPEG (Delivery Multimedia Integration Framework) DMIF. Single or multiple MPEG-4 streams can be carried over one RTP session. MPEG-4 information essential for the efficient packing and unpacking of MPEG-4 streams into/from RTP is identified. The DMIF end-to-end signaling protocol is applied to identify the MPEG-4 RTP payload types and ensure stack compatibility at both sender and receiver locations. DMIF also interprets the RTCP reports by comparing its statistics to the requested MPEG-4 media based QoS. If the statistics fail to meet the requested QoS then action is taken to either continue with the impaired performance, upgrade the network service class, scale down the stream or delete the stream. This action is apart from scalability using the stream back-channel flow control which may be present between an encoder and its decoder. This is an update of the draft-ietf-avt-rtp-mpeg4-dmif-00. It reflects the latest MPEG-4 specs. In addition some clarifications are included and an open issues section is established based on feedback received.


Vahe Balabanian (

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