In order to increase the efficiency of the transcoder, the system was optimized, the fast algorithms were proposed and MMX SSE2 instruction sets were utilized to increase the transcoding speed, after the analysis of the hotspots.

• 在分析了转码器各个模块运算耗时情况后,对其中运算量最大的部分提出了快速算法,并通过MMX、SSE2指令集和IPP函数库进行了优化。