Video Detection And Download System Based On P2SP

With the development of china internet and network bandwidth, watching network video has become one of the most important entertainments. But people can not watch network video smoothly because there are too many users and the number of servers is poor. Especially for HD video, such as Sohu HD, Tudou HD, and so on, the effect of watching is disppointting. So people need to download the video and save it in local computer. This peper's aim is dealing these problems.And when people watch some favourite movies.They want to download to their disk.However, traditional download tools, such as Thunder, Flashget, could not find the real download link of target video. Moreover, most of the existing video sites take some encrptying measurements to protect their videos from downloaded by traditional tools. Even some downloading tools can get the real downloading links and dowaload it successfully; they can not support downloading at the interruption point and multi-thread downloading. In that case, the download speed usually is very slow and once the link lost because of network exception, people have to redownload the whole file at beginning. That will be a kind of waste of time and storage of user. Consequently, people will discourage people to watch video at network.In this paper, video detection and download system based on Internet online video service. After do a lot of research on CDN server basic freamwork and true video url protection. Make a new type of S&D model.S is for video searching,D is for video Downloading.Including video detection,video downloading. video P2P sharing. Using Microsoft IEFream and Apple webkit technology to build video detector. Then use CDN server detection technology to get multi-video url. After got the true video url. Use P2SP download-system to download date. Support range downloading. and support use itself to build P2P network to share video data. Just use one key to download every video web's data. High success rate with video detection, download speed, which can HTTP, which can download video from multiple servers.S&D system have already be used in Internet.for people to free use.After we anyalized user callback data. S&D system can successfully detect and download the 90% of the resources on the online video site.Compared with other online video download tools and systems, with better performance.