I imported opencv in android studio and crashed after calling inputFrame.rgba()
Here is my code:
public class MainActivity extends AppCompatActivity implements CameraBridgeViewBase.CvCameraViewListener2{
private CameraBridgeViewBase mOpenCvCameraView;
public static final String TAG = "MainActivity";
static {
System.loadLibrary("OpenCV");
}
private Mat mRgba;
private Mat mFlipRgba;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setContentView(R.layout.activity_main);
mOpenCvCameraView = findViewById(R.id.HelloOpenCvView);
mOpenCvCameraView.setVisibility(SurfaceView.VISIBLE);
mOpenCvCameraView.setCvCameraViewListener(this);
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, 1);
}
// mOpenCvCameraView.enableView();
}
BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) {
@Override
public void onManagerConnected(int status){
switch (status) {
case LoaderCallbackInterface.SUCCESS:
Log.i(TAG,"OpenCV loaded successfully");
mOpenCvCameraView.enableView();
break;
default:
break;
}
}
};
@Override
protected void onResume() {
super.onResume();
//OpenCVLoader.initDebug();
if (!OpenCVLoader.initDebug()) {
Log.d(TAG,"OpenCV library not found!");
} else {
Log.d(TAG, "OpenCV library found inside package. Using it!");
mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
if (requestCode == 1 && grantResults[0] == PackageManager.PERMISSION_DENIED) {
return;
}
}
@Override
protected void onPause() {
super.onPause();
if (mOpenCvCameraView != null)
mOpenCvCameraView.disableView();
}
public void onDestroy() {
super.onDestroy();
if (mOpenCvCameraView != null)
mOpenCvCameraView.disableView();
}
@Override
public void onCameraViewStarted(int width, int height) {
Log.d(TAG, "onCameraViewStarted");
mRgba = new Mat();
mFlipRgba = new Mat();
}
@Override
public void onCameraViewStopped() {
Log.d(TAG, "onCameraViewStopped");
mRgba.release();
}
@Override
public Mat onCameraFrame(CameraBridgeViewBase.CvCameraViewFrame inputFrame) {
Log.d(TAG,"onCameraFrame");
mRgba = inputFrame.rgba(); //argb rgb
//Imgproc.COLOR_RGBA2RGB
// Imgproc.cvtColor(mRgba,mFlipRgba,Imgproc.COLOR_RGBA2RGB,0);
return inputFrame.gray();
}}
and AndroidManifest.xml: <uses-permission android:name="android.permission.CAMERA"/>
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-feature android:name="android.hardware.camera.front" />
<uses-feature android:name="android.hardware.camera.front.autofocus" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest> Here is exception:
Failed to dispatch window animation state change.
android.os.DeadObjectException
at android.os.BinderProxy.transactNative(Native Method)
at android.os.BinderProxy.transact(Binder.java:503)
at android.view.IWindow$Stub$Proxy.onAnimationStopped(IWindow.java:534)
at com.android.server.wm.WindowAnimator.updateWindowsLocked(WindowAnimator.java:286)
at com.android.server.wm.WindowAnimator.animateLocked(WindowAnimator.java:678)
at com.android.server.wm.WindowAnimator.access$000(WindowAnimator.java:53)
at com.android.server.wm.WindowAnimator$1.doFrame(WindowAnimator.java:123)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:856)
at android.view.Choreographer.doCallbacks(Choreographer.java:670)
at android.view.Choreographer.doFrame(Choreographer.java:603)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.os.HandlerThread.run(HandlerThread.java:61)
at com.android.server.ServiceThread.run(ServiceThread.java:46)
**thank you very much for your help**