Accession Number : ADA282656

Title :   A Comparison of Streams and Time Advance As Paradigms for Multimedia Systems.

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF COMPUTER SCIENCE

Personal Author(s) : Dannenberg, Roger B. ; Rubine, Dean

Report Date : MAR 1994

Pagination or Media Count : 20

Abstract : A common model for multimedia systems is the stream, an abstraction representing the flow of continuous time-dependent data such as audio samples and video frames. The primary feature of streams is the ability to compose processes by making stream connections between them. An alternative time-advance model is related to discrete-event simulations. Data is computed in presentation order, but in advance of the actual presentation time. Timestamped, buffered data is subsequently output with low latency. The primary feature of time-advance systems is accurate output timing. Stream-based and time-advance systems are compared in terms of the programming model, flow control, buffering, support for interaction, synchronization, modularity issues, and real-time requirements

Descriptors :   *STREAMS, *CONTINUOUS PROCESSING, *DATA PROCESSING, COMPUTER PROGRAMMING, CONTROL, FLOW, FRAMES, INTERACTIONS, OUTPUT, REAL TIME, REQUIREMENTS, COMPUTATIONS, TIME, VIDEO FRAMES, COMPARISON, SYNCHRONIZATION(ELECTRONICS), COMPUTERIZED SIMULATION.

Subject Categories : Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE