Key Thchnology Of Software On HD IPTV STB

Internet Protocol Television (IPTV) is new technology which provide a variety of interactive digital television services for home describers by combining the technology of Internet, multimedia, communications and others. IPTV provides the TV, PC, mobile terminals and other users with rich multimedia video services uploading the content by Internet. The service is looked as the new value-added services for broadband entertainment with improvement interaction, picture quality, And the best tool for the development of Triplay business.The core framework of the IPTV service includes:Content operation platform, business operations platform, service bearer transmission network, user terminal network. IPTV involves streaming media technology, content distribution, digital copyright protection, terminal access technology etc.The conventional IPTV set-top box always be looked as video decoding devices who realize the Digital & Analog transition and output the analog signal to TV. the new generation of set-top boxes achieve a number new features such as Web browsing, picture browsing. The trend of endless new features requirements on limited set on top box hardware resources is the primary issue on embed system development Research on how to achieve a faster video playback, Web browsing is very valuable research topic.This paper realized the STB software system which take the browser as the core, the various functional modules such as player, picture viewer are independent functional modules rather than DPI.we provided a solution which solved the problem of web browser on the current set-top box hardware takes too much resource, and the Confusion scheduling between the modules. In methods of tailoring the file system, closing the independent I/O operations, optimizing the source code recto achieve browser scheduling the modules flexibly and improving the speed of system response.