package com.example.dipsy.cv_playground;
 
import android.app.Activity;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraManager;
import android.media.CamcorderProfile;
import android.os.Bundle;
import android.util.Log;
import android.view.MenuItem;
import android.view.SurfaceView;
import android.view.WindowManager;
 
import org.opencv.android.BaseLoaderCallback;
import org.opencv.android.CameraBridgeViewBase;
import org.opencv.android.CameraBridgeViewBase.CvCameraViewFrame;
import org.opencv.android.CameraBridgeViewBase.CvCameraViewListener2;
import org.opencv.android.LoaderCallbackInterface;
import org.opencv.android.OpenCVLoader;
import org.opencv.core.Mat;
 
public class MainActivity extends Activity implements CvCameraViewListener2 {
    private static final String TAG = "OCVSample::Activity";
 
    private CameraBridgeViewBase mOpenCvCameraView;
    private boolean mIsJavaCamera = true;
    private MenuItem mItemSwitchCamera = null;
 
    private 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: {
                    super.onManagerConnected(status);
                }
                break;
            }
        }
    };
 
    public MainActivity() {
        Log.i(TAG, "Instantiated new " + this.getClass());
        System.out.println("hello world!");
    }
 
    /**
     * Called when the activity is first created.
     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        Log.i(TAG, "called onCreate");
        super.onCreate(savedInstanceState);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 
        setContentView(R.layout.activity_main);
 
        mOpenCvCameraView = (CameraBridgeViewBase) findViewById(R.id.tutorial1_activity_java_surface_view);
 
        mOpenCvCameraView.setVisibility(SurfaceView.VISIBLE);
 
        mOpenCvCameraView.setCvCameraViewListener(this);
 
        CameraManager manager = (CameraManager) getSystemService(this.CAMERA_SERVICE);
        try {
            for (String cameraId : manager.getCameraIdList()) {
                int id = Integer.valueOf(cameraId);
                if (CamcorderProfile.hasProfile(id, CamcorderProfile.QUALITY_HIGH_SPEED_LOW)) {
                    CamcorderProfile profile = CamcorderProfile.get(id, CamcorderProfile.QUALITY_HIGH_SPEED_LOW);
                    int videoFrameRate = profile.videoFrameRate;
 
 
                    System.out.println(videoFrameRate+"testestt");
                    //...
                }
            }
        } catch (CameraAccessException e) {
            System.out.println(e.toString());
        }
    }
 
    @Override
    public void onPause() {
        super.onPause();
        if (mOpenCvCameraView != null)
            mOpenCvCameraView.disableView();
    }
 
    @Override
    public void onResume() {
        super.onResume();
        if (!OpenCVLoader.initDebug()) {
            Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
            OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_3_0_0, this, mLoaderCallback);
        } else {
            Log.d(TAG, "OpenCV library found inside package. Using it!");
            mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
        }
    }
 
    public void onDestroy() {
        super.onDestroy();
        if (mOpenCvCameraView != null)
            mOpenCvCameraView.disableView();
    }
 
    public void onCameraViewStarted(int width, int height) {
    }
 
    public void onCameraViewStopped() {
    }
 
    public Mat onCameraFrame(CvCameraViewFrame inputFrame) {
        return inputFrame.rgba();
    }
}

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:opencv="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
 
    <org.opencv.android.JavaCameraView
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:visibility="gone"
        android:id="@+id/tutorial1_activity_java_surface_view"
        opencv:show_fps="true"
        opencv:camera_id="any" />
 
</FrameLayout>

public void onCreate(Bundle savedInstanceState) {
        Log.i(TAG, "called onCreate");
        super.onCreate(savedInstanceState);
 
        mMediaRecorder = new MediaRecorder();
 
//        mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE);
 
        CamcorderProfile cpHigh = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
        mMediaRecorder.setProfile(cpHigh);
        mMediaRecorder.setOutputFile("out.mp4");
 
        try {
            mMediaRecorder.prepare();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }