yuv420p转rgb565，轻松实现摄像头格式转换-the yuv420p turn rgb565, easy camera format conversion

S3C6410上camera OV9650驱动，输出的数据包含RGB565和YUYV两种格式，并有两种格式对应的测试APP。-It s the camera driver of s3c6410 to OV9650,the output data includes RGB565 and YUYV format.

This function expands 8 pixels RGB565 (R, G, B high to low) to SkPMColor (all possible configurations supported) in the exact same way as SkPixel16ToPixel32. -This function expands 8 pixels RGB565 (R, G, B high to low) to SkPMColor (all possible

cvbs转换芯片tw9992驱动代码，支持yuv422和rgb565输出-cvbs tw9992 c code，output yuv422 or RGB565