In order to further enhance the speed of codec for achieving real-time coding, this thesis introduces multimedia instruction collection such as MMX, SSE, SSE2 as well as SSE3 based on SIMD (Single Instruction Multi Data).

• 为了进一步提高编解码速度以达到实时编解码；又引入了Intel的MMX、SSE、SSE2以及SSE3等基于SIMD(单指令多数据)技术的多媒体指令集；并利用这些指令集对H.