dc: A Live Webcast Control System

Tai-Ping Yu, David Wu, Ketan Mayer-Patel, and Lawrence A. Rowe
Berkeley Multimedia Research Center
University of California, Berkeley
{taiping, davidwu, kpatel, larry}@bmrc.berkeley.edu

Abstract:

Webcasts can adopt techniques developed by television to obtain higher quality. Television production techniques, however, cannot be integrated into webcast production without considering the fundamental differences in the underlying infrastructure. We have developed a general webcast production model composed of three stages (i.e., sources, broadcast, and transmission) to address these differences. The Director's Console (dc) is a live webcast production application based on this model. It utilizes a distributed service architecture, which adapts to varying physical infrastructures and broadcast configurations.