H.264视频解码的OpenMP并行优化  

OpenMP Parallel Optimization of H.264 Video Decoding

作　　者：陈玮[1] 郎涛[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《计算机系统应用》2011年第3期202-205,共4页Computer Systems & Applications

摘　　要：随着H.264视频格式得到广泛应用,对H.264解码的效率要求越来越高,对JM15.1模型中的H.264解码过程进行了分析。采用共享存储编程的工业标准OpenMP对解码过程进行了并行区的设置。设置私有变量防止数据竞争和调整了负载。解码效率提高了10%左右。With the H.264 video format widely used,the efficiency of the H.264 decoding has become increasingly demanding,this paper analyzes the H.264 decoding process in the JM15.1 model using the OpenMP which is industry-standard of shared memory to set parallel zones for decoding process.It sets private variables to prevent data conflicting and regulating load.The efficiency of decoding increases about 10%.

关 键 词：OPENMP JM模型 H.264解码 负载平衡 并行优化 

分 类 号：TN919.81[电子电信—通信与信息系统]