Network protocol in the movie server occupies a very important position, it can be said that if there is no network protocol, the movie server will not function at all. This article briefly introduces several current mainstream network protocols, hoping to provide some help to understand the movie server.
1, ftp: Full name file Transfer Protocol (document Transfer Protocol), through the protocol can be between the two computers to achieve file upload and download, a computer as an FTP client, another computer as an FTP server. At present, through the FTP protocol to file transmission is the Internet using a very wide range of upload, download file methods, can download the file almost include all file formats, such as Common MP3, DOC, EXE, ZIP, TXT and so on.
2. MMS: The full name of Microsoft Media Server (Microsoft Press servers), through the MMS protocol, you can access and receive media files from a Windows Media server (such as. asf,. wmv, etc.), such as in Windows Media You can receive and play the media file by opening a hyperlink that contains MMS as a URL in the player. Currently, software that supports MMS downloads is nettransport (av conveyor belt), FlashGet (Internet Express), Steambox VCR, etc.
3, RTSP: Full name real-time streaming Protocol (real-time Streaming protocol), RTSP protocol is jointly proposed by RealNetworks and Netscape, through which the media files can be used to help The internet is delivered to RealPlayer and can effectively utilize network bandwidth, typically transmitted by real server media files such as. rm,. Ram. The above three download software also supports the RTSP protocol.
4, PNM: That is, progressive network communication protocol, is used before the RealAudio URL format protocol, similar to the RTSP protocol, is mainly used for RealPlayer to the media for signal flow processing. Currently, the protocol is rarely used to download streaming media files.
5, Multithreading: Full name multithread, usually use IE download files when the file as a whole download, while using multithreading technology can be downloaded into several parts of the file at the same time download, after downloading the several parts of the merged. Through this technology can improve the speed and efficiency of download, most of the download software currently support the technology.
6, Breakpoint continuation: Refers to the process of downloading files, if there is interruption or termination, will save the part of the download, when the download again, automatically from the interrupted place to continue downloading, and do not need to repeat the previous part of the download.