Design And Realization Of UPnP Streaming Media Player Based On IXP425

With the development of network and multimedia, steaming media devices have been used widely in many fields. Streaming media player based on network communication and multimedia technology has become one of the main trends in communication and consumer electronic product, which has many advantages such as real time, reliability, multifunction, convenient operation. A prototype of steaming media player is designed. In view of cost and performance, IXP425 processor from Intel has been used in streaming media player. TheμcLinux has been used for software platform, which has many advantages such as stabilization, powerful function,supporting many different hardware platforms,low cost and so on.According to function requirement and hardware characteristics of streaming media player, we design and implement a bootloader that can load and bootμcLinux.TheμcLinux has been ported on our hardware platform based on IXP425.On the basis of analyzing common device driver in Linux, audio and video drivers for sigma chip are ported onμcLinux .On the basis of analyzing UPnP, protocol stack for UPnP has been implemened.According to characteristics of streaming media player based on UPnP, three main modules for UPnP has beed designed and implemented,which consists of device discovery,device description parse,device control. Ultimately, A media player based on UPnP and progressive streaming technology is implemented successfully, which supports MPEG-2 decoding of Audio and Video.The test results show that system software platform has been implemented successfully, streaming media player based on UPnP works well.The streaming media player can satisfy user's requirement for playing audio and video file.