关于视频流的转换简单的函数，YUV,RGB等概念信息的相互调用，-Convert video streams simple function, YUV, RGB and other information about the concept of calling each other,

文件的解压缩。添加文件unzip.h、unzip.cpp、zip.h、zip.cpp，调用对应函数进行压缩和解压。压缩格式为zip；压缩之后的文件可以用winrar等程序打开。-File decompression. Add file unzip.h, unzip.cpp, zip.h, zip.cpp, call the corresponding function for compression and decompression. Compression format is zip th