package com.hand.face.view;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.ImageFormat;
import android.graphics.Matrix;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.YuvImage;
import android.hardware.Camera;
import android.hardware.Camera.CameraInfo;
import android.util.AttributeSet;
import android.util.Log;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import com.hand.face.myinterface.CameraInterface;
import com.hand.face.ui.FaceCompareActivity;
import java.io.ByteArrayOutputStream;
/**
* Created by USER on 2016/12/10.
*/
public class CameraSurfaceView extends SurfaceView implements SurfaceHolder.Callback,FaceCompareActivity.NV21ImgCallBack {
private static final String TAG = "CameraSurfaceView";
CameraInterface mCameraInterface;
Context mContext;
SurfaceHolder mSurfaceHolder;
// /** 当前屏幕旋转角度*/
// private int mOrientation=0;
private byte[] buffer;
private String contextName;
private int orientation = -90;
private int cameraId = 0;
public CameraSurfaceView(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
mContext = context;
mSurfaceHolder = getHolder();
mSurfaceHolder.setFormat(PixelFormat.TRANSPARENT);//translucent半透明 transparent透明
mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mSurfaceHolder.addCallback(this);
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
// TODO Auto-generated method stub
Log.i(TAG, "surfaceCreated...");
CameraInterface.getInstance().setCallBack(this);
contextName = mContext.getClass().getName();
if("com.hand.face.ui.FaceCompareActivity".equals(contextName)){
CameraInterface.getInstance().doOpenCamera(null, CameraInfo.CAMERA_FACING_FRONT);
cameraId = CameraInfo.CAMERA_FACING_FRONT;
}else if("com.hand.face.ui.FaceSerchActivity".equals(contextName)){
CameraInterface.getInstance().doOpenCamera(null, CameraInfo.CAMERA_FACING_BACK);
cameraId = CameraInfo.CAMERA_FACING_BACK;
}else{
CameraInterface.getInstance().doOpenCamera(null, CameraInfo.CAMERA_FACING_FRONT);
cameraId = CameraInfo.CAMERA_FACING_FRONT;
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
// TODO Auto-generated method stub
Log.i(TAG, "surfaceChanged...");
CameraInterface.getInstance().doStartPreview(mSurfaceHolder, 1.333f);
// updateCameraOrientation();
if(CameraInterface.getInstance()!=null && CameraInterface.getInstance().getCameraParams()!=null){
if("com.hand.face.ui.FaceCompareActivity".equals(contextName)){
setCameraDisplayOrientation((Activity)mContext,cameraId,CameraInterface.getInstance().getmCamera());
}else if("com.hand.face.ui.FaceSerchActivity".equals(contextName)){
setCameraDisplayOrientation((Activity)mContext,cameraId,CameraInterface.getInstance().getmCamera());
}
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
// TODO Auto-generated method stub
Log.i(TAG, "surfaceDestroyed...");
CameraInterface.getInstance().doStopCamera();
}
public SurfaceHolder getSurfaceHolder(){
return mSurfaceHolder;
}
public Bitmap getPicture(){
Bitmap bmp = null;
//转化为图片
if(buffer!=null){
YuvImage image = new YuvImage(buffer, ImageFormat.NV21, CameraInterface.getInstance().getCameraParams().getPreviewSize().width, CameraInterface.getInstance().getCameraParams().getPreviewSize().height, null); //ImageFormat.NV21 640 480
ByteArrayOutputStream outputSteam = new ByteArrayOutputStream();
image.compressToJpeg(new Rect(0, 0, image.getWidth(), image.getHeight()), 85, outputSteam); // 将NV21格式图片，以质量70压缩成Jpeg，并得到JPEG数据流
byte[] jpegData = outputSteam.toByteArray(); //从outputSteam得到byte数据
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 1;
bmp = BitmapFactory.decodeByteArray(jpegData, 0, jpegData.length, options);
if(CameraInfo.CAMERA_FACING_FRONT == CameraInterface.getInstance().getCameraId()){
bmp = rotaingImageView(-orientation, bmp);//旋转图片
}else{
bmp = rotaingImageView(orientation, bmp);//旋转图片
}
}
return bmp;
}
private Bitmap rotaingImageView(int angle , Bitmap bitmap) {
//旋转图片 动作
Matrix matrix = new Matrix();;
matrix.postRotate(angle);
System.out.println("angle2=" + angle);
// 创建新的图片
Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0,
bitmap.getWidth(), bitmap.getHeight(), matrix, true);
return resizedBitmap;
}
/**
* 根据当前朝向修改保存图片的旋转角度
*/
// private void updateCameraOrientation(){
// if(CameraInterface.getInstance()!=null && CameraInterface.getInstance().getCameraParams()!=null){
// Camera.Parameters parameters = CameraInterface.getInstance().getCameraParams();
// //rotation参数为 0、90、180、270。水平方向为0。
// int rotation=90+mOrientation==360?0:90+mOrientation;
// //前置摄像头需要对垂直方向做变换，否则照片是颠倒的
// if(CameraInfo.CAMERA_FACING_FRONT == CameraInterface.getInstance().getCameraId()){
// if(rotation==90) rotation=270;
// else if (rotation==270) rotation=90;
// }
// parameters.setRotation(rotation);//生成的图片转90°
// //预览图片旋转90°
// CameraInterface.getInstance().getmCamera().setDisplayOrientation(90);//预览转90°
// CameraInterface.getInstance().getmCamera().setParameters(parameters);
// //开启屏幕朝向监听
// startOrientationChangeListener();
// }
// }
/**
* 启动屏幕朝向改变监听函数 用于在屏幕横竖屏切换时改变保存的图片的方向
*/
// private void startOrientationChangeListener() {
// OrientationEventListener mOrEventListener = new OrientationEventListener(mContext) {
// @Override
// public void onOrientationChanged(int rotation) {
//
// if (((rotation >= 0) && (rotation <= 45)) || (rotation > 315)){
// rotation=0;
// }else if ((rotation > 45) && (rotation <= 135)) {
// rotation=90;
// }
// else if ((rotation > 135) && (rotation <= 225)) {
// rotation=180;
// }
// else if((rotation > 225) && (rotation <= 315)) {
// rotation=270;
// }else {
// rotation=0;
// }
// if(rotation==mOrientation)
// return;
// mOrientation=rotation;
// updateCameraOrientation();
// }
// };
// mOrEventListener.enable();
// }
@Override
public void getImgBuffer(byte[] nv21) {
if (null == nv21) {
return;
}
if(buffer == null){
buffer = new byte[nv21.length];
}
synchronized (nv21) {
System.arraycopy(nv21, 0, buffer, 0, nv21.length);
}
}
public int getDisplayRotation(Activity activity) {
int rotation = activity.getWindowManager().getDefaultDisplay()
.getRotation();
switch (rotation) {
case Surface.ROTATION_0: return 0;
case Surface.ROTATION_90: return 90;
case Surface.ROTATION_180: return 180;
case Surface.ROTATION_270: return 270;
}
return 0;
}
public void setCameraDisplayOrientation(Activity activity,
int cameraId, Camera camera) {
// See android.hardware.Camera.setCameraDisplayOrientation for
// documentation.
Camera.CameraInfo info = new Camera.CameraInfo();
Camera.getCameraInfo(cameraId, info);
int degrees = getDisplayRotation(activity);
int result;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
result = (info.orientation + degrees) % 360;
result = (360 - result) % 360; // compensate the mirror
} else { // back-facing
result = (info.orientation - degrees + 360) % 360;
}
orientation = result;
camera.setDisplayOrientation(result);
}
}