Publication Details
Title: A Time-Sensitive Actor Framework in Java for the Development of Multimedia Systems over the Internet MBone
Author: G. Fortino, L. Nigro, and A. Albanese
Group: ICSI Technical Reports
Date: March 1999
PDF: ftp://ftp.icsi.berkeley.edu/pub/techreports/1999/tr-99-007.pdf
Overview:
This paper describes an architectural framework for the development of Internet-based multimedia systems such as interactive and collaborative media on-demand applications. The programming in-the-small level centres on Java and a variant of the Actor model especially designed for time-dependent distributed systems. The programming in-the-large level can be tuned to exploit current real-time and control protocols proposed for the Internet MBone. A multimedia application is modeled as a collection of autonomous and (possibly) mobile media actors interacting one to another to achieve a common goal. Multiple stream synchronisation is based on reflective actors (QoSsynchronizers) which filter message transmissions and apply to them application-dependent QoS constraints. Admission control of multiple sessions is delegated to a system Broker. The paper describes the actor framework and discusses its application to the construction of Java Multimedia Studio on-Demand, a multimedia system designed to support playback, recording and editing of multimedia presentations.
Bibliographic Information:
ICSI Technical Report TR-99-007
Bibliographic Reference:
G. Fortino, L. Nigro, and A. Albanese. A Time-Sensitive Actor Framework in Java for the Development of Multimedia Systems over the Internet MBone. ICSI Technical Report TR-99-007, March 1999
Author: G. Fortino, L. Nigro, and A. Albanese
Group: ICSI Technical Reports
Date: March 1999
PDF: ftp://ftp.icsi.berkeley.edu/pub/techreports/1999/tr-99-007.pdf
Overview:
This paper describes an architectural framework for the development of Internet-based multimedia systems such as interactive and collaborative media on-demand applications. The programming in-the-small level centres on Java and a variant of the Actor model especially designed for time-dependent distributed systems. The programming in-the-large level can be tuned to exploit current real-time and control protocols proposed for the Internet MBone. A multimedia application is modeled as a collection of autonomous and (possibly) mobile media actors interacting one to another to achieve a common goal. Multiple stream synchronisation is based on reflective actors (QoSsynchronizers) which filter message transmissions and apply to them application-dependent QoS constraints. Admission control of multiple sessions is delegated to a system Broker. The paper describes the actor framework and discusses its application to the construction of Java Multimedia Studio on-Demand, a multimedia system designed to support playback, recording and editing of multimedia presentations.
Bibliographic Information:
ICSI Technical Report TR-99-007
Bibliographic Reference:
G. Fortino, L. Nigro, and A. Albanese. A Time-Sensitive Actor Framework in Java for the Development of Multimedia Systems over the Internet MBone. ICSI Technical Report TR-99-007, March 1999