南华大学学报（自然科学版）Issue(1)：74-76,87,4.
基于DM642的x264源代码的汇编优化
Optimization of the Source Code X264 for DM642
摘要
Abstract
To increase the encoding speed of H. 264,an optmization method is proposed for improving the run effectiveness of source code x264 on the platform of DM642. Thereinto, DCT( discrete cosine transform) and frame predition are optimized by using linear assembly optmization method. While the SAD function is optimized by using parallel optmization one. Experimental tests are then implemented for evaluating the running speed of the origi-nal source code as well as that of the optimized code, and the experimental results show that optimazation of the source code x264 for the platform of DM642 significantly decreases the running clock cycle and thus improves the performance of the encoder.关键词
h. 264/x264/DM642/线性汇编/并行汇编Key words
h. 264/x264/DM642/Linear assembly optmization/parallel assembly optmization分类
信息技术与安全科学引用本文复制引用
黄国玉,廖湘柏..基于DM642的x264源代码的汇编优化[J].南华大学学报（自然科学版）,2014,(1):74-76,87,4.基金项目
2010年湖南省高等学校科学研究基金资助项目(10C1145) （10C1145）
