基于云计算Live Mesh的流媒体应用研究

Study for the Streaming Media Application Based on Live Mesh of Cloud Computing

流媒体技术和云计算的迅速发展,以及越来越多的流媒体应用平台的涌现,极大地促进了网络用户间媒体信息的传播和共享,但业务上同时存在很多问题,例如,媒体播放在设备间快速切换和流媒体断点续播等问题。研究了一种基于云计算平台LiveMesh的流媒体应用系统。该系统采用URI定位和XML实现了媒体资源的集中管理,并采用局域网UDP广播与多线程处理机制实现了媒体播放状态在局域网内不同终端之间的即时切换;采用LiveMesh的消息管理机制,实现了流媒体的断点续播功能。实验结果表明,在不同终端之间可以实现相同媒体资源的共享和媒体播放一键即时切换,同时可以智能地实现断点续播。

With the development of streaming media technology and cloud computing,and the emerging on more and more streaming application platform,transmission and sharing on steaming information have been facilitated.But there exist a lot of problems,for example,playing state handover and broken-point continuingly-playing,and so on.A streaming media application system based on live mesh of cloud computing was proposed in this paper.The system adopted URI and XML to accomplish media source centralize management,and used LAN UDP broadcast and multi-thread mechanism to realize real-time handover on steaming media playing state between terminals.At the same time,the broken-point continuingly-playing was carried out with message management mechanism based on Live Mesh.The experiments show that the sharing on the same streaming media resource and the seamless handover on playing state have been well implemented between terminals,and the broken-point continuingly-playing has also been intelligently achieved.