android onPreviewFrame(byte[] data, Camera)始终给出一个有噪声的图片，不像预览中那样给出图片

I am just curious about correctly using setOneShotPreview() callback and correctly using onPreviewFrame(byte[] data, Camera camera) to get an image as it is displayed in preview. I have implemented all the code and its working but the resulting image is of no use. Below is my code please help me with what i am doing wrong.I am just curious about correctly using setOneS