视频格式转码函数，YUV420、YUV420sp（NV１２）、yuyv、uyvy、yvu420、y41p、yuv410、yuv422p、yuv411p、rgb8、rgb15、RGB16、rgb24、RGB32 等格式之间的相互转换函数库-function library for video Formats converting between YUV420、YUV420sp（NV１２）、yuyv、uyvy、yvu420、y41p、yuv410、yuv422p、yuv411p、rgb8、rgb1