以一个多相抽取滤波器为例，介绍滤波器组的编码方式，包括主程序模块和子程序模块-With a polyphase decimation filter, for example, introduced the filter encoding methods, including the main program modules and subroutines Module

最新的FFMPEG编解码库，适合多种音视频文件的编解码-ffmpeg is a very fast video and audio converter that can also grab from a live audio/video source. It can also convert between arbitrary sample rates and resize video on the fly with a high quality polyphase filter.