The Implementation And Research Of A VOD System With DRM

The rapid development and wide application of the multimedia technologies and network technologies brings people colorful digital products about video/audio entertainment, more and more people prefer to watching video interactively on Internet. All of these create excellent condition of the development of VOD (Video on Demand) technology. However, the increased pirate hurt the enthusiasm of producer and composer. The VOD market needs a digital rights protection mechanism exactly.On this paper, several video service patterns and the specific market requirement of multimedia rights protection are analyzed, a VOD system with DRM framework is investigated in more detail, its implementation and optimization are also discussed.General speaking, my work can be briefly summarized as follows:(1) A dynamic transference based schedule algorithm is proposed, and the scheduler subsystem is implemented and tested.(2) DRM framework design, performance testing and making improvement of DRM system which can support business operation.(3) Multimedia coding/decoding standards and multimedia file format are investigated, en/decryption algorithm and watermarking algorithm are implemented in packing module.(4) Implementation of an applied core system.