The Design And Implementation Of Multimedia Redirection Oriented For Android Mobile Desktop Cloud

With the rapid development of mobile Internet,Android takes lead in the field of mobile operating system with its open source feature and good application ecosystem.At the same time,with continuant development of cloud computing technology,desktop cloud system has been widely applied in the scene of enterprise mobile office because of its security,flexibility and easy management.In the traditional desktop cloud system,what runs on its server are operating systems like Windows,Linux,MacOS,which leads to the problem that Android applications developed for mobile office scenarios can not be run on the server.In order to solve this prolem,this paper combines Android OS and desktop cloud system with Android mobile desktop cloud system.In this system,Android OS is run on the server,with Android system service provided to client through a redirecting way.Graphic and audio service is the most basic multimedia one in Android,which is of great importance in the experience of users of Android mobile desktop cloud system.In order to make graphic and audio services of the server-side Android system accessible for users through client,this paper proposes a multimedia mobile redirection solution for Android mobile desktop cloud system.In order to implement this project,the following tasks are done in this paper:1.Mobile desktop cloud related technologies are studied and analyzed,including:LXC container virtualization technology,Android system inter-process communication and VNC remote desktop framework.2.A multimedia redirection framework orienting Android mobile desktop cloud is proposed.Based on this framework,multimedia redirections are realized without modified Android framework in a non-intrusive way.3.The rendering subsystem and display subsystem of the Android graphic system are analyzed and researched thoroughly,on the basis of which a non-intrusive Android image redirection method is designed and implemented.4.The audio playing and audio recording procedure in the Android audio system is analyzed in details,on the basis of which a non-invasive Android audio redirection method is designed and implmented.5.The above multimedia redirection scheme is integrated into the existing Android mobile desktop cloud system.Image redirection and audio redirection are verified.Moreover the performance tests and analysis are carried out.