| 基于多线程的CABAC并行编码方法 |
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| 引用本文： | 陈胜刚,孙书为,陈书明.基于多线程的CABAC并行编码方法[J].国防科技大学学报,2009,31(1):99-103. |
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| 作者姓名： | 陈胜刚 孙书为 陈书明 |
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| 作者单位： | 国防科技大学,计算机学院,湖南,长沙,410073 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，教育部高性能微处理器技术创新团队研究计划项目 |
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| 摘 要： | CABAC(Context based Adaptive Binary Arithmetic Coding)是H.264/AVC主要档次以上配置中推荐采用的熵编码方法.相比其他的熵编码方法,CABAC能够节省编码码率,但其计算串行性强,不能较好适应片上多核环境.针对这一问题提出了基于多线程的CABAC并行编码方法.大量实验统计表明,该方法负载划分较为均衡,对序列熵编码的单独加速比最高可达1.78.
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| 关 键 词： | 并行化 |
| 收稿时间： | 7/2/2008 12:00:00 AM |
A CABAC Parallel Encoding Method for Multithreading |
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| CHEN Shenggang,SUN Shuwei and CHEN Shuming.A CABAC Parallel Encoding Method for Multithreading[J].Journal of National University of Defense Technology,2009,31(1):99-103. |
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| Authors: | CHEN Shenggang SUN Shuwei and CHEN Shuming |
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| Institution: | College of Computer;National Univ.of Defense Technology;Changsha 410073;China |
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| Abstract: | The context-based adaptive binary arithmetic coder(CABAC) is the preferred entropy encoding method in the main profile of H.264/AVC,for it can offer more bit rate saving than other entropy coding methods.However,high computational complexity and poor parallelism make it unsuitable for chip multicore processors application.A new CABAC parallel encoding method is proposed for the troubleshooting.Results from experiments show that the proposed method can indeed strike a near balanced workload partition while a... |
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| Keywords: | CABAC H 264/AVC |
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