Enhancing Internet Streaming Media with Cueing Protocols Jack Brassil, Henning Schulzrinne1 Internet and Mobile Systems Laboratory HP Laboratories Palo Alto HPL-2000-173 December 15th, 2000* E-mail:
[email protected],
[email protected] Real-Time We propose a new, media-independent protocol for including Transport program timing, structure and identity information in internet Protocol, media streams. The protocol uses signaling messages called multimedia cues to indicate events whose timing is significant to receivers, signaling, such as the start or stop time of a media program. We describe content delivery the implementation and operation of a prototype internet networks radio station which transmits program cues in audio broadcasts using the Real-Time Transport Protocol. A collection of simple yet powerful stream processing applications we implemented demonstrate how application creation is greatly eased when media streams are enriched with program cues. * Internal Accession Date Only Approved for External Publication 1 Columbia University, New York, NY Ó Copyright Hewlett-Packard Company 2001 Enhancing Internet Streaming Media with Cueing Protocols Jack Brassil HP Laboratories
[email protected] Henning Schulzrinne Columbia University
[email protected] __________________________________________________________________ Abstract — We propose a new, media-independent protocol for including program timing, structure and identity information in internet media streams. The protocol uses signaling messages called cues to indicate events whose timing is significant to receivers, such as the start or stop time of a media program. We describe the implementation and operation of a prototype internet radio station which transmits program cues in audio broadcasts using the Real-Time Transport Protocol. A collection of simple yet powerful stream processing applications we implemented demonstrate how application creation is greatly eased when media streams are enriched with program cues.