一种提高XWindow下的视频播放性能的方法  

A Method for Improving the Performance of Video Playing in XWindow System

作　　者：段建晋[1] 

机构地区：[1]海军驻武汉719研究所军事代表室,武汉430064

出　　处：《计算机与数字工程》2008年第8期170-173,共4页Computer & Digital Engineering

摘　　要：通过对XWindow运行原理进行分析,指出视频播放时XClient进程和XServer进程间的大量图像数据拷贝是影响视频播放性能的重要因素,提出采用共享内存机制消除进程间数据拷贝的方法来提高视频播放的整体性能,并给出实现代码,最后通过试验验证了该方法的有效性。With the analysis of XWindow＇s operation principle, it is pointed out in this paper that the mass data copying between the XClient process and XServer process is an important factor which influences video playing performance. Then a method of eliminating the process - process data copy with shared memory mechanism is put forward to improve the performance of video playing and the code is presented. At last the method is proved by experimentation.

关 键 词：共享内存 视频播放 XWINDOW 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]