10 Oct 2012

Video Recording example in Android

Hello friends, today i am going to post of Video recording in Android using surface view.

RecordVideoActivity.class 

import java.io.File;
import java.io.IOException;
import java.util.Date;
import android.app.Activity;
import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.Menu;
import android.view.SurfaceView;
import android.widget.Toast;

public class RecordVideoActivity 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;


    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        surfaceView = (SurfaceView) findViewById(R.id.surface_camera);
        mCamera = Camera.open();
       
        surfaceHolder = surfaceView.getHolder();
        surfaceHolder.addCallback(this);
        surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
               
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {

        menu.add(0, 0, 0, "Start");
        return super.onCreateOptionsMenu(menu);
    }

    @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");
        }

        return super.onOptionsItemSelected(item);
    }

    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";
        
         //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();

       
    }

    protected void stopRecording() {

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

    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();      

    }
}

activity_main.xml:


<SurfaceView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/surface_camera"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_centerInParent="true"
    android:layout_weight="1" >

</SurfaceView>


Permissions:

    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Download full source code from here VideoRecorderSampleCode

I will be happy if you will provide your feedback or follow this blog. Any suggestion and help will be appreciated.
Thank you :)

8 comments:

  1. I followed your code though, when i run it, the application suddenly stopped with the pop-up message which is " Unfortunately, application has stopped".

    please give me some advice

    ReplyDelete
    Replies
    1. Please send me log cat error.

      Delete
    2. 03-27 18:29:14.426: E/AndroidRuntime(29312): Caused by: java.lang.IllegalStateException
      03-27 18:29:14.426: E/AndroidRuntime(29312): at android.media.MediaRecorder.stop(Native Method)
      03-27 18:29:14.426: E/AndroidRuntime(29312): at com.example.app.MainActivity.stopRecording(MainActivity.java:129)

      Delete
  2. can't able to download samples

    ReplyDelete
    Replies
    1. Please try below link:

      https://sites.google.com/site/hasmukhandroidcom/home/androidtutorial/A_V_Record_Demo_App.zip?attredirects=0&d=1

      Delete
  3. Nice post! totally works

    ReplyDelete
  4. Hi, Thank you for example, Can we set orientation for camera? because its not perfectly displayed in this code. Please help me buddy.

    ReplyDelete
  5. You just copy paste the above code. where did you used releaseCamera() and releaseMediaRecorder() method??

    ReplyDelete