主要采用C语言解复用出视频段、音频段以及数据段的相关复用内容，并将其里面的数据储存在结构体数组里，以供其他模块使用。-Mainly uses the C language demultiplexing a video segment, audio segment, and data re-use the contents of the relevant section, and its inside structure of data stored in an array of years, for use by other modules.