A light-weight federated video adaptation system for P2P overlays

This paper presents a lightweight but effective mastersender-driven multiple parent approach for online video adaptation and streaming to heterogeneous clients. The proposed design facilitates the cooperation of participating clients for improving the utilization of the spare resources in an overlay. Our design uses standard H.264/AVC video streams. It enables peers to contribute both CPU and bandwidth in a multi-parent fashion, such that no dedicated adaptation server and streaming server is required, although we need a reliable rendezvous point for the video stream originators and the peers in the overlay. We present the live video processing paradigm using metadata followed by the video distribution overview. A brief performance evaluation supporting the design choices is also presented.