Design Of H.264Video Decoding Middleware Based On Android

With the rapid development of streaming media technology, wireless communication technology and video compression technology, the video monitoring system is applied more widely and deeply, the scale and cope of the monitor is expanding. Remote video surveillance based on embedded mobile terminal devices and wireless network has become a hot field of research.This article through the present situation and the development analysis of the video monitoring system, combined with the development of the theory and technology, and the requirements performance of the video monitoring system, put forward one kind of design scheme based on the Android video monitoring system. Realized the video capture, video compression, video network transmission and the real-time display function of the monitoring system. The selection software platform of the whole system based on the opening phone operating system Android with the Linux kernel, the system has begun to enter the industrial level because of the good development and portability, the hardware platform based on S3C6410processor of high performance which has the hardware acceleration function and H.264video decoder.This paper introduced the key technique theory knowledge of the monitoring system, raised the design scheme of the video monitoring system based on the Android platform, completed the module design and the implementation of the software. The system consists of the video collection terminal (camera), video server and client., the main module include the video gather module, the video coding module, the real-time transporting module, the client display module. The monitoring system uses the new low bit rate video compression standard H.264, which integrated in DSP not only reduces the transmission capacity but also improve the image quality and coding efficiency, achieve the real-time, reliability requirements of the monitoring system, in the real-time transporting module, Socket program and realization of RTP protocol are fully discussed, in the real time video display module uses the VLC multimedia player. In the last, it summarizes and comes up with the subsequent development programs and plans.