How can I record a Video in my Android App.?

Question

How can I capture a video recording on Android?

Answer 1

This demo will helpful for you....

video.xml

Your Main Activity: Video.java

 public class Video extends Activity implements OnClickListener,
    SurfaceHolder.Callback {

private static final String TAG = "CAMERA_TUTORIAL";

private SurfaceView mSurfaceView;
private SurfaceHolder mHolder;
private Camera mCamera;
private boolean previewRunning;
private MediaRecorder mMediaRecorder;
private final int maxDurationInMs = 20000;
private final long maxFileSizeInBytes = 500000;
private final int videoFramesPerSecond = 20;
Button btn_record;
boolean mInitSuccesful = false;
File file;
ToggleButton mToggleButton;

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

    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

    mSurfaceView = (SurfaceView) findViewById(R.id.surface_camera);
    mHolder = mSurfaceView.getHolder();
    mHolder.addCallback(this);
    mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

    mToggleButton = (ToggleButton) findViewById(R.id.toggleRecordingButton);
    mToggleButton.setOnClickListener(new OnClickListener() {
        @Override
        // toggle video recording
        public void onClick(View v) {
            if (((ToggleButton) v).isChecked())
                mMediaRecorder.start();
            else {
                mMediaRecorder.stop();
                mMediaRecorder.reset();
                try {
                    initRecorder(mHolder.getSurface());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    });
}

private void initRecorder(Surface surface) throws IOException {
    // It is very important to unlock the camera before doing setCamera
    // or it will results in a black preview
    if (mCamera == null) 
    {
        mCamera = Camera.open();
        mCamera.unlock();
    }

    if (mMediaRecorder == null)
        mMediaRecorder = new MediaRecorder();

    mMediaRecorder.setPreviewDisplay(surface);
    mMediaRecorder.setCamera(mCamera);

    mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);

    mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);

    mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);

    mMediaRecorder.setOutputFile(this.initFile().getAbsolutePath());

    // No limit. Don't forget to check the space on disk.
    mMediaRecorder.setMaxDuration(50000);
    mMediaRecorder.setVideoFrameRate(24);
    mMediaRecorder.setVideoSize(1280, 720);
    mMediaRecorder.setVideoEncodingBitRate(3000000);
    mMediaRecorder.setAudioEncodingBitRate(8000);

    mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
    mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

    try {
        mMediaRecorder.prepare();
    } catch (IllegalStateException e) {
        // This is thrown if the previous calls are not called with the
        // proper order
        e.printStackTrace();
    }

    mInitSuccesful = true;
}

private File initFile() {
    // File dir = new
    // File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES),
    // this
    File dir = new File(Environment.getExternalStorageDirectory(), this
            .getClass().getPackage().getName());


    if (!dir.exists() && !dir.mkdirs()) {
        Log.wtf(TAG,
                "Failed to create storage directory: "
                        + dir.getAbsolutePath());
        Toast.makeText(Video.this, "not record", Toast.LENGTH_SHORT);
        file = null;
    } else {
        file = new File(dir.getAbsolutePath(), new SimpleDateFormat(
                "'IMG_'yyyyMMddHHmmss'.mp4'").format(new Date()));
    }
    return file;
}

@Override
public void surfaceCreated(SurfaceHolder holder) {
    try {
        if (!mInitSuccesful)
            initRecorder(mHolder.getSurface());
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

private void shutdown() {
    // Release MediaRecorder and especially the Camera as it's a shared
    // object that can be used by other applications
    mMediaRecorder.reset();
    mMediaRecorder.release();
    mCamera.release();

    // once the objects have been released they can't be reused
    mMediaRecorder = null;
    mCamera = null;
}

@Override
public void surfaceDestroyed(SurfaceHolder holder) {
    shutdown();
}

@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
        int height) {
    // TODO Auto-generated method stub

}

@Override
public void onClick(View v) {
    // TODO Auto-generated method stub

}

}

MediaMetadataRetriever Class

public class MediaMetadataRetriever {

 static {
        System.loadLibrary("media_jni");
        native_init();
    }

    // The field below is accessed by native methods
    @SuppressWarnings("unused")
    private int mNativeContext;

    public MediaMetadataRetriever() {
        native_setup();
    }

    /**
     * Call this method before setDataSource() so that the mode becomes
     * effective for subsequent operations. This method can be called only once
     * at the beginning if the intended mode of operation for a
     * MediaMetadataRetriever object remains the same for its whole lifetime,
     * and thus it is unnecessary to call this method each time setDataSource()
     * is called. If this is not never called (which is allowed), by default the
     * intended mode of operation is to both capture frame and retrieve meta
     * data (i.e., MODE_GET_METADATA_ONLY | MODE_CAPTURE_FRAME_ONLY).
     * Often, this may not be what one wants, since doing this has negative
     * performance impact on execution time of a call to setDataSource(), since
     * both types of operations may be time consuming.
     * 
     * @param mode The intended mode of operation. Can be any combination of 
     * MODE_GET_METADATA_ONLY and MODE_CAPTURE_FRAME_ONLY:
     * 1. MODE_GET_METADATA_ONLY & MODE_CAPTURE_FRAME_ONLY: 
     *    For neither frame capture nor meta data retrieval
     * 2. MODE_GET_METADATA_ONLY: For meta data retrieval only
     * 3. MODE_CAPTURE_FRAME_ONLY: For frame capture only
     * 4. MODE_GET_METADATA_ONLY | MODE_CAPTURE_FRAME_ONLY: 
     *    For both frame capture and meta data retrieval
     */
    public native void setMode(int mode);

    /**
     * @return the current mode of operation. A negative return value indicates
     * some runtime error has occurred.
     */
    public native int getMode();

    /**
     * Sets the data source (file pathname) to use. Call this
     * method before the rest of the methods in this class. This method may be
     * time-consuming.
     * 
     * @param path The path of the input media file.
     * @throws IllegalArgumentException If the path is invalid.
     */
    public native void setDataSource(String path) throws IllegalArgumentException;

    /**
     * Sets the data source (FileDescriptor) to use.  It is the caller's
     * responsibility to close the file descriptor. It is safe to do so as soon
     * as this call returns. Call this method before the rest of the methods in
     * this class. This method may be time-consuming.
     * 
     * @param fd the FileDescriptor for the file you want to play
     * @param offset the offset into the file where the data to be played starts,
     * in bytes. It must be non-negative
     * @param length the length in bytes of the data to be played. It must be
     * non-negative.
     * @throws IllegalArgumentException if the arguments are invalid
     */
    public native void setDataSource(FileDescriptor fd, long offset, long length)
            throws IllegalArgumentException;

    /**
     * Sets the data source (FileDescriptor) to use. It is the caller's
     * responsibility to close the file descriptor. It is safe to do so as soon
     * as this call returns. Call this method before the rest of the methods in
     * this class. This method may be time-consuming.
     * 
     * @param fd the FileDescriptor for the file you want to play
     * @throws IllegalArgumentException if the FileDescriptor is invalid
     */
    public void setDataSource(FileDescriptor fd)
            throws IllegalArgumentException {
        // intentionally less than LONG_MAX
        setDataSource(fd, 0, 0x7ffffffffffffffL);
    }

    /**
     * Sets the data source as a content Uri. Call this method before 
     * the rest of the methods in this class. This method may be time-consuming.
     * 
     * @param context the Context to use when resolving the Uri
     * @param uri the Content URI of the data you want to play
     * @throws IllegalArgumentException if the Uri is invalid
     * @throws SecurityException if the Uri cannot be used due to lack of
     * permission.
     */
    public void setDataSource(Context context, Uri uri)
        throws IllegalArgumentException, SecurityException {
        if (uri == null) {
            throw new IllegalArgumentException();
        }

        String scheme = uri.getScheme();
        if(scheme == null || scheme.equals("file")) {
            setDataSource(uri.getPath());
            return;
        }

        AssetFileDescriptor fd = null;
        try {
            ContentResolver resolver = context.getContentResolver();
            try {
                fd = resolver.openAssetFileDescriptor(uri, "r");
            } catch(FileNotFoundException e) {
                throw new IllegalArgumentException();
            }
            if (fd == null) {
                throw new IllegalArgumentException();
            }
            FileDescriptor descriptor = fd.getFileDescriptor();
            if (!descriptor.valid()) {
                throw new IllegalArgumentException();
            }
            // Note: using getDeclaredLength so that our behavior is the same
            // as previous versions when the content provider is returning
            // a full file.
            if (fd.getDeclaredLength() < 0) {
                setDataSource(descriptor);
            } else {
                setDataSource(descriptor, fd.getStartOffset(), fd.getDeclaredLength());
            }
            return;
        } catch (SecurityException ex) {
        } finally {
            try {
                if (fd != null) {
                    fd.close();
                }
            } catch(IOException ioEx) {
            }
        }
        setDataSource(uri.toString());
    }

    /**
     * Call this method after setDataSource(). This method retrieves the 
     * meta data value associated with the keyCode.
     * 
     * The keyCode currently supported is listed below as METADATA_XXX
     * constants. With any other value, it returns a null pointer.
     * 
     * @param keyCode One of the constants listed below at the end of the class.
     * @return The meta data value associate with the given keyCode on success; 
     * null on failure.
     */
    public native String extractMetadata(int keyCode);

    /**
     * Call this method after setDataSource(). This method finds a
     * representative frame if successful and returns it as a bitmap. This is
     * useful for generating a thumbnail for an input media source.
     * 
     * @return A Bitmap containing a representative video frame, which 
     *         can be null, if such a frame cannot be retrieved.
     */
    public native Bitmap captureFrame();

    /**
     * Call this method after setDataSource(). This method finds the optional
     * graphic or album art associated (embedded or external url linked) the 
     * related data source.
     * 
     * @return null if no such graphic is found.
     */
    public native byte[] extractAlbumArt();

    /**
     * Call it when one is done with the object. This method releases the memory
     * allocated internally.
     */
    public native void release();
    private native void native_setup();
    private static native void native_init();

    private native final void native_finalize();

    @Override
    protected void finalize() throws Throwable {
        try {
            native_finalize();
        } finally {
            super.finalize();
        }
    }

    public static final int MODE_GET_METADATA_ONLY  = 0x01;
    public static final int MODE_CAPTURE_FRAME_ONLY = 0x02;

    /*
     * Do not change these values without updating their counterparts
     * in include/media/mediametadataretriever.h!
     */
    public static final int METADATA_KEY_CD_TRACK_NUMBER = 0;
    public static final int METADATA_KEY_ALBUM           = 1;
    public static final int METADATA_KEY_ARTIST          = 2;
    public static final int METADATA_KEY_AUTHOR          = 3;
    public static final int METADATA_KEY_COMPOSER        = 4;
    public static final int METADATA_KEY_DATE            = 5;
    public static final int METADATA_KEY_GENRE           = 6;
    public static final int METADATA_KEY_TITLE           = 7;
    public static final int METADATA_KEY_YEAR            = 8;
    public static final int METADATA_KEY_DURATION        = 9;
    public static final int METADATA_KEY_NUM_TRACKS      = 10;
    public static final int METADATA_KEY_IS_DRM_CRIPPLED = 11;
    public static final int METADATA_KEY_CODEC           = 12;
    public static final int METADATA_KEY_RATING          = 13;
    public static final int METADATA_KEY_COMMENT         = 14;
    public static final int METADATA_KEY_COPYRIGHT       = 15;
    public static final int METADATA_KEY_BIT_RATE        = 16;
    public static final int METADATA_KEY_FRAME_RATE      = 17;
    public static final int METADATA_KEY_VIDEO_FORMAT    = 18;
    public static final int METADATA_KEY_VIDEO_HEIGHT    = 19;
    public static final int METADATA_KEY_VIDEO_WIDTH     = 20;
    public static final int METADATA_KEY_WRITER          = 21;
    // Add more here...
}