Compound Media Straming in Time

Abstract

The widespread availability of networked multimedia potentials embedded in an infrastructure of qualitative superior kind gives rise to new approaches in the areas of teleteaching and Internet presentation: The distribution of professionally styled multimedia streams has fallen in the realm of possibility. This paper presents a prototype - both model and runtime environment - of a time directed media system treating any kind of presentational contribution as reusable media object components. The plug-in free runtime system is based on a database and allows for a flexible support of static media types as well as for easy extensions by streaming media servers. The technique of pluggable subservers is used to include a real-time video codec, based on a fast low complexity wavelet transformation and an highly efficient lossless precoding scheme using 'partitioning, aggregation, and conditional coding (PACC). The JAVA implementation enables real—time video streaming in CIF format on IP connections with low bandwidth (≈ 200kb/s).