An interoperable streaming framework for scalable video coding based on MPEG-21

Abstract

This paper presents an interoperable framework for the streaming of scalable multimedia content such as scalable video coding (SVC). In particular, the framework's architecture for both, video on demand (VoD) and multicast streaming, is presented. The architecture includes a detailed description of the adaptation engine - conforming to MPEG- 21 Digital Item Adaptation - as well as the integration of the adaptation engine into VideoLAN's VLC media player, which provides the streaming server and client for the framework. Following the description of the architecture, a comparison in terms of performance of the generic MPEG-21 DIA-based adaptation approach, which is utilized by the described demo, versus an SVC-specific adaptation approach is presented and possible further improvements for both approaches are investigated.