Applications built with the CMT

Berkeley Distributed Video-on-Demand (VOD) System

The VOD system is designed to provide access to a large quantity of video information over computer networks. Clients across the Internet can submit requests to the VOD system to view multimedia streams, which may include audio, video and graphical streams. Playback is accomplished by streaming data from a video file server through the network to the client's computer.

CMEdit - The Continuous Media Editor

The editor operates on and produces CMMovies that organize digital video and audio material into linear presentations. This source material can be located on remote servers or on a local machine. CMMovies can be played directly using CMT applications such as the CMPlayer or CMEdit, or they can be used to assemble new source material. This approach supports the construction of highly-interactive media editors that take full advantage of the Internet.

DVFS

A serverless distributed video file system, similar in spirit to the xFS file system of Berkeley's NOW Project, but exploiting properties of video data for improved functionality. In addition to utilizing desktop machines as the server, our approach contains two new ideas: layered file service for fault tolerance and migrating video data for better load balancing.

Physics and Astronomy Multimedia Facility

This series of interactive multimedia presentations is designed to be used as teaching tools for physics courses.

Software Video Production Switcher

A program that allows a user to manage a live video broadcast, switching between multiple input streams, using special effects filters and transitions, and producing a single output stream, which can be broadcast on the MBONE or used as input to further CMT objects.

Surfit!

A World Wide Web browser that uses CMT to display audio, video, and cmscript objects in web pages

Projects extending the CMT

Declarative Front-End for CMT 4.0

Temporal Constraint System for CMT

Extends the tcl ``trace'' command to provide traces on slots of clock objects by using the University of Minnesota's TclProp project.

Research projects using the CMT

Berkeley Multimedia Research Center

(University of California at Berkeley)

Center for Computational Psychology

(University of Chicago)

Infopad Project

(University of California at Berkeley)

GIMME - Graphical Interfaces for Multimedia Environments

(University of Minnesota)

MASH - Multimedia Architecture that Scales over Heterogeneous environments

(University of California at Berkeley)

Project Zeno

(Cornell University)