| 基于MPI的H.264并行编码代码移植与优化 |
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| 引用本文： | 范文.基于MPI的H.264并行编码代码移植与优化[J].信息通信技术,2010,4(3):25-29. |
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| 作者姓名： | 范文 |
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| 作者单位： | 洛阳理工学院计算机信息工程系,洛阳,471023 |
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| 摘 要： | H.264获得出色压缩效果和质量的代价是压缩编码算法复杂度的增加。为了寻求更高的编码速度,集群并行计算被运用到H.264的视频编码计算中。分析H.264可实现并行计算的任务单元选择;采用了片(slice)级的H.264并行编码计算方法,实现了基于MPI并行环境的X264源代码移植;针对实验室的小型集群平台,通过测试给出较优的并行任务分配方案,结果表明对标清视频在分8片以上并行编码时能够达到实时编码的要求。
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| 关 键 词： | H.264 视频编码 并行计算 MPI |
H.264 Code Parallel Implementation and Optimization Based on MPI |
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| Fan Wen.H.264 Code Parallel Implementation and Optimization Based on MPI[J].Information and Communications Technologies,2010,4(3):25-29. |
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| Authors: | Fan Wen |
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| Affiliation: | Fan Wen Computer and Information Engineering Department,Luoyang Institute of Science and Luo Yang 471023,China |
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| Abstract: | The cost of H.264 geting good coding effect and quality is algorithms complexity increased.The High Perfermance Parallel Computing was used in the H.264 video coding for getting faster speed,Choosing slice as a unit for H.264 Parallel Computing and implementing X264 codec Parallel Computing with MPI,then the best Parallel task work efficiency based on lab＇s cluster was got and test results indicated that the parallel coding speed of SD Video can meet real-time requirement when sliceses are more than 8. |
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| Keywords: | H 264 Video Coding Parallel Computing MPI |
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