path: root/ref/MainActivity.java

package com.example.rotorm;


import java.io.File;
import java.io.IOException;
import java.util.Date;
import java.util.List;

import com.example.rotorm.R;

import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.SurfaceHolder.Callback;
import android.widget.Toast;

public class MainActivity extends Activity implements Callback {
	
	@Override
    protected void onDestroy() {
        stopRecording();
        super.onDestroy();
    }

    private SurfaceHolder surfaceHolder;
    private SurfaceView surfaceView;
    public MediaRecorder mrec = new MediaRecorder();    
    private Camera mCamera;
    private Uri uriSound;
    MediaPlayer mp;

	@Override
	protected void onCreate(Bundle savedInstanceState) {	
		super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        uriSound=Uri.parse("");
        
        Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI);
        startActivityForResult(intent, 10);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		menu.add(0, 0, 0, "Start");
        //menu.add(0, 0, 0, "Pick audio track");
        return super.onCreateOptionsMenu(menu);
		// Inflate the menu; this adds items to the action bar if it is present.
		//getMenuInflater().inflate(R.menu.main, menu);
		//return true;
	}
	
	 @Override
	    public boolean onOptionsItemSelected(MenuItem item)
	    {
	        if(item.getTitle().equals("Start"))
	        {
	            try {
	                
	                startRecording();
	                item.setTitle("Stop");

	            } catch (Exception e) {

	                String message = e.getMessage();
	                Log.i(null, "Problem " + message);
	                mrec.release();
	            }

	        }
	        else if(item.getTitle().equals("Stop"))
	        {
	            mrec.stop();
	            mrec.release();
	            mrec = null;
	            item.setTitle("Start");
	            mp.stop();
	        }
	        else if(item.getTitle().equals("Pick audio track"))
	        {
	        	Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI);
	            startActivityForResult(intent, 10);
	        }

	        return super.onOptionsItemSelected(item);
	    }
	 
	 protected void startPreview() throws IOException {
		 
		 
		
		 //http://stackoverflow.com/questions/12098298/android-camera-app-passed-null-surface
		 //http://developer.android.com/training/camera/cameradirect.html
		 //http://developer.android.com/guide/topics/media/camera.html#custom-camera
		 
			 if (mCamera!=null){
	             Log.e("Rotor", "Nulling camera");
	             mCamera.stopPreview();
	             mCamera.setPreviewCallback(null);
	             mCamera.release();
	             mCamera=null;
			 }
			 
			 if(mCamera == null){
	            mCamera = Camera.open();        
	            Log.i("Rotor", "Setting up camera");
	            
	            /*
	            Camera.Parameters parameters = mCamera.getParameters(); 
	            //get a list of supported preview sizes and assign one
	            List<Camera.Size> previewSizes = parameters.getSupportedPreviewSizes();
	            Camera.Size previewSize = previewSizes.get(0);
	            parameters.setPreviewSize(previewSize.width, previewSize.height);
	            //Set Frame rate
	            parameters.setPreviewFrameRate(25);
	            //Set Scene
	            List<String> modes = parameters.getSupportedSceneModes();
	            parameters.setSceneMode(modes.get(0));
	            //Set focus mode
	            List<String> focus = parameters.getSupportedFocusModes();
	            parameters.setFocusMode(focus.get(0));
	            
	            */
	            
	           
	            
	           
	           
	           
	            Camera.Parameters parameters = mCamera.getParameters(); 
	            parameters.setPreviewSize(1280,720);
	            parameters.setPreviewFrameRate(25);
	            parameters.setSceneMode(Camera.Parameters.SCENE_MODE_SPORTS);
	            parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
	            parameters.setColorEffect(Camera.Parameters.EFFECT_NONE);
	            mCamera.setParameters(parameters);        

	          //Apply parameters to camera object
	            mCamera.setParameters(parameters);
	            Log.e("Rotor", "Camera configured");
		    }
			 /*
		 
	    	//if(mCamera==null) mCamera = Camera.open();
	    
		    setContentView(R.layout.main);
		    
		    surfaceView = (SurfaceView) findViewById(R.id.surface_camera);
		    
		    surfaceHolder = surfaceView.getHolder();
		    surfaceHolder.addCallback(this);
		    surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
	    	
	    	mCamera.lock(); 
	        mCamera.unlock();
	   
	        ////crashes on nexus 10 
	        //09-07 15:36:21.850: E/AndroidRuntime(5418): java.lang.RuntimeException: getParameters failed (empty parameters)

	        //Start the preview
            Log.e("Rotor", "Starting preview");
	        //mCamera.setPreviewCallback(new cam_PreviewCallback());  
	        mCamera.setPreviewDisplay(surfaceHolder);
	        mCamera.startPreview();
	        
	        */
	    
	    }

	    protected void startRecording() throws IOException
	    {
	        if(mCamera==null)
	            mCamera = Camera.open();
	        
	         String filename;
	         String path;
	        
	         path= Environment.getExternalStorageDirectory().getAbsolutePath().toString();
	         
	         Date date=new Date();
	         filename="/rec"+date.toString().replace(" ", "_").replace(":", "_")+".mp4";
	         
	         Log.i(null, "Saving video file: " + filename);
	         
	         //create empty file it must use
	         File file=new File(path,filename);
	         
	        mrec = new MediaRecorder(); 

	        mCamera.lock();
	        mCamera.unlock();

	        // Please maintain sequence of following code. 

	        // If you change sequence it will not work.
	        mrec.setCamera(mCamera);    
	        mrec.setVideoSource(MediaRecorder.VideoSource.CAMERA);
	        //mrec.setAudioSource(MediaRecorder.AudioSource.MIC);     
	        mrec.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
	        mrec.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
	        //mrec.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
	        mrec.setPreviewDisplay(surfaceHolder.getSurface());
	        mrec.setOutputFile(path+filename);
	        mrec.prepare();
	        mrec.start();

	        Log.i(null, "Audio file: " + uriSound);
	        
	        //try {
	            //MediaPlayer mp = new MediaPlayer();
	            //MediaPlayer mp = MediaPlayer.create(this, R.raw.stick);
	        mp = MediaPlayer.create(this, uriSound);
	            //mp.setDataSource(this, uriSound);         
	            mp.start();
	          ///} catch (IllegalArgumentException e) {
	          // TODO Auto-generated catch block
	          //   e.printStackTrace();
	          //} catch (SecurityException e) {
	          // TODO Auto-generated catch block
	          //   e.printStackTrace();
	          //} catch (IllegalStateException e) {
	          // TODO Auto-generated catch block
	          //   e.printStackTrace();
	          //} catch (IOException e) {
	          // TODO Auto-generated catch block
	          //   e.printStackTrace();
	          //}
	    }

	    protected void stopRecording() {

	        if(mrec!=null)
	        {
	            mrec.stop();
	            mrec.release();
	            mCamera.release();
	            mCamera.lock();
	        }
	        
	        mp.stop();
	    }

	    private void releaseMediaRecorder() {

	        if (mrec != null) {
	            mrec.reset(); // clear recorder configuration
	            mrec.release(); // release the recorder object
	        }
	    }

	    private void releaseCamera() {
	        if (mCamera != null) {
	            mCamera.release(); // release the camera for other applications
	            mCamera = null;
	        }

	    }
	
	    @Override
	    public void surfaceChanged(SurfaceHolder holder, int format, int width,int height) {      

	    }

	    @Override
	    public void surfaceCreated(SurfaceHolder holder) {       

	        if (mCamera != null) {
	            Parameters params = mCamera.getParameters();
	            mCamera.setParameters(params);
	            Log.i("Surface", "Created");
	        }
	        else {
	            Toast.makeText(getApplicationContext(), "Camera not available!",
	                    Toast.LENGTH_LONG).show();

	            finish();
	        }

	    }

	    @Override
	    public void surfaceDestroyed(SurfaceHolder holder) {
	        mCamera.stopPreview();
	        mCamera.release();       
	        //http://stackoverflow.com/questions/13235306/method-called-after-release-exception-camera-preview
	        //mCamera=null;
	    }
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {

         //if(requestCode == RESULT_OK && requestCode == 10){
               uriSound=data.getData();
               
               Log.i("Sound file",uriSound.toString());
               
               //String temp="audioFileName";
               //this.getIntent().getStringExtra(temp);
               //uriSound=Uri.parse(temp);
               //uriSound=Uri.parse("/Music/stick.mp3");
               
               try {
            	   startPreview();
				} catch (IOException e) {
					Log.e("Preview","Error");
					e.printStackTrace();
				}
				
               
         //}
     }

}