摘要
对H. 264测试模型JM8. 4进行优化和改进。从分析模型结构入手,对解码流程进行调整。针对函数模块的耗时情况,采用SIMD技术对重要解码函数进行改写,使解码速度提高,在主流的PC机上可以对VGA和cif格式的H. 264序列实时解码。
Give a way to optimize and ameliorate the test model JM8.4 of H.264. It analyzes the structure of model, remend the procession of decoder. Aiming to the timing profiling use the SIMD instruction to rewrite some important functions, resulted almost thirty times faster. The optimized decoder can perform real time decoding of H.264 sequences in VGA, CIFformat in ordinary PCs.
出处
《中国有线电视》
2005年第6期562-565,共4页
China Digital Cable TV
