出错语句： mImageReader = ImageReader.newInstance(width, height, ImageFormat.RGB_565, 2);
错误描述：buffer format 0x1 doesn't match the ImageReader's configured buffer format 0x4
出错原因：创建 ImageReader 时 ImageFormat 设置不对
解决方法：直接把 ImageFormat 改成 0x1
mImageReader = ImageReader.newInstance(width, height, 0x1, 2);
