安卓摄像头 data 转bitmap

public static Bitmap getBitMap(byte[] data, Camera camera, boolean mIsFrontalCamera) {
int width = camera.getParameters().getPreviewSize().width;
int height = camera.getParameters().getPreviewSize().height;
YuvImage yuvImage = new YuvImage(data, camera.getParameters()
.getPreviewFormat(), width, height, null);
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
yuvImage.compressToJpeg(new Rect(0, 0, width, height), 80,
byteArrayOutputStream);
byte[] jpegData = byteArrayOutputStream.toByteArray();
// 获取照相后的bitmap
Bitmap tmpBitmap = BitmapFactory.decodeByteArray(jpegData, 0,
jpegData.length);
Matrix matrix = new Matrix();
matrix.reset();
if (mIsFrontalCamera) {
matrix.setRotate(-90);
} else {
matrix.setRotate(90);
}
tmpBitmap = Bitmap.createBitmap(tmpBitmap, 0, 0, tmpBitmap.getWidth(),
tmpBitmap.getHeight(), matrix, true);
tmpBitmap = tmpBitmap.copy(Bitmap.Config.ARGB_8888, true);

int hight = tmpBitmap.getHeight() > tmpBitmap.getWidth() ? tmpBitmap
.getHeight() : tmpBitmap.getWidth();

float scale = hight / 800.0f;

if (scale > 1) {
tmpBitmap = Bitmap.createScaledBitmap(tmpBitmap,
(int) (tmpBitmap.getWidth() / scale),
(int) (tmpBitmap.getHeight() / scale), false);
}
return tmpBitmap;
}