Research And Design Of P2P Streaming Media Platform For Content Supervision

The integration of Internet and multimedia technology makes the P2P streaming technology a hot spot. However, it also brings a series of information security issues such as channel spots, video tampering, piracy proliferation and so on. It is an urgent need for information security to achieve real-time P2P streaming media content supervision. This article aims at the need, carry on an investigation into the dimension of video authentication,video mark and real-time video content marker detection. Finally designs a P2P streaming media platform for content supervision.This paper improves the P2P streaming media platform PeerCast as a platform basis. Discovers the defects of PeerCast in node-selecting mechanism, disconnect/ reconnect mechanism and node-buffer mechanism. A stable and efficient P2P streaming media system is presented by optimizing the defects.The paper proposes a real-time video content watermark embedding/detection algorithm for the video media content. Using a simple key, the algorithm generates a watermark related MPEG-2 video content. Client site verifies the legitimacy of the video content using the Examining algorithm. Experimental results show that the algorithm has the following three major advantages which are low complexity, real-time video content and close integration with the videos. So the algorithm is suitable for the real-time video content monitoring watermarking scheme.Under the implement of the watermarking algorithm and the improved PeerCast, A video watermarker-based P2P streaming media platform for content supervision SupPeerCast is designed. Also the paper designs and implements the following key sub-modules fully:user authentication, video publishing and watermark detection.