Rapid Prototyping with Constraints-based Scheduling for Multimedia Applications

  • Authors:

  • Wynne Hsu;Teik Guan Tan

  • Affiliations:

  • Department of Information Systems and Computer Science, National University of Singapore, Lower Kent Ridge Road, Singapore 119260. whsu@iscs.nus.sg;Department of Information Systems and Computer Science, National University of Singapore, Lower Kent Ridge Road, Singapore 119260. tanteikg@iscs.nus.sg

  • Venue:
  • Multimedia Tools and Applications
  • Year:
  • 1999

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Abstract

With the increased demand in multimedia applications, the need toprovide better system support is greater than ever. Multimediaapplications have an added dimension of time in their execution whichresults in stringent timing requirements. Existing systems incorporatesuch stringent timing requirements either at the system-level or the application-level.System-level supports are typically operating-system-dependent whereas application-level supports are achieved by building timingcontrols into the application itself. This lengthens the applicationdevelopment time and fails to take full advantage of operating system‘scapabilities.In this paper, we propose a framework that resides between the system-leveland application-level support. The framework consists of two layers: an interface layer that incorporates high-level end-to-end timing constraints,and a system layer that implements a host-end schedulingmechanism to support high-level end-to-end timing specifications.Two applications have been developed using this framework. Theresults indicate that the framework is able to supportrapid-prototyping of multimedia applications with stringent timingrequirements.