The Design Of High Definition Digital Movie Player Based On Satellite Digital Video Broadcast

As the development of technology and improvement of living style, people's requirement to movie improves too. Expect the movie's attraction, more and more people pay their attention to sight enjoying, and this cause the super fast development of global high definition movies directly. Going with the development trend, catching opportunity of market, many digital movie-line, digital television channel and kinds of decoder or chips which support high definition movies come out one by one in China, but all of them have their disadvantages, such as costs too much or not easy to use.To resolve these kinds of problems, this article provides a kind of high definition digital movie player bases on DVB-S:the front server broadcasts movie files in DVB-S method, the terminal movie player receives the movie files through the receiving module and saves in it own disk, then decoding chips decodes movies and outputs signal to a TV. Using this player, people can enjoy real high definition movies at home.This article introduces the player frame designs which includes the hole system requirements,the dividing of function modules and the hardware design in chapter three. The player software design introduced in chapter four by three parts:the design of receiving module,the design of USB driver and the design of Content manage module. At the same time, this article optimizes the driver's usage of CPU and the strategy of saving big file in embedded system, the optimization is tested to be efficient. The player's testing and validation puts in chapter five while the last chapter gives an overview.