We are requesting support for both personnel and equipment. The full-time staff programmer and one of the research assistants will work on restructuring the current system to delineate the core objects that are required by most applications and modules that can be loaded dynamically as needed. We will also be cleaning up a number of compilation and installation problems on Windows platforms. Lastly, these people will be actively involved in the documentation and training material development that is part of the Consortium's mission. Using RLM, a media source distributes a hierarchical signal by striping the constituent layers across multiple multicast groups.
Receivers then adjust their reception rate by simply joining and leaving multicast groups.
The biggest problem was assigning addresses to the different multicast groups on which layered video packets are transmitted. The goal is to allow administratively scoped addresses to be assigned so that participants in the same domain can transmit multiple layers even though the session was created and announced from a different domain. We need to modify the implementation of the session announcement and caching tool, deploy it in the Internet, and conduct experiments to evaluate the performance and practicality of this solution. The current Mash code for scalable video coding was designed by McCanne as part of his PhD Dissertation work. We are currently integrating an H.263 video codec into Mash.