@TargetApi(Build.VERSION_CODES.HONEYCOMB)
    private boolean prepareVideoRecorder(){

        // BEGIN_INCLUDE (configure_preview)
        mCamera = CameraHelper.getDefaultCameraInstance();

        // We need to make sure that our preview and recording video size are supported by the
        // camera. Query camera to find all the sizes and choose the optimal size given the
        // dimensions of our preview surface.
        Camera.Parameters parameters = mCamera.getParameters();
        List<Camera.Size> mSupportedPreviewSizes = parameters.getSupportedPreviewSizes();
        Camera.Size optimalSize = CameraHelper.getOptimalPreviewSize(mSupportedPreviewSizes,
                mPreview.getWidth(), mPreview.getHeight());

        // likewise for the camera object itself.
        parameters.setPreviewSize(optimalSize.width, optimalSize.height);

        parameters.set("fast-fps-mode", 2);

        mCamera.setParameters(parameters);
        try {
                // Requires API level 11+, For backward compatibility use {@link setPreviewDisplay}
                // with {@link SurfaceView}
                mCamera.setPreviewTexture(mPreview.getSurfaceTexture());
        } catch (IOException e) {
            Log.e(TAG, "Surface texture is unavailable or unsuitable" + e.getMessage());
            return false;
        }
        // END_INCLUDE (configure_preview)


        // BEGIN_INCLUDE (configure_media_recorder)
        mMediaRecorder = new MediaRecorder();

        // Use the same size for recording profile.
//        CamcorderProfile profile = CamcorderProfile.get(CamcorderProfile.QUALITY_1080P);
//        profile.videoFrameWidth = optimalSize.width;
//        profile.videoFrameHeight = optimalSize.height;

        // Step 1: Unlock and set camera to MediaRecorder
        mCamera.unlock();
        mMediaRecorder.setCamera(mCamera);

        // Step 2: Set sources
        mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
        mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);

        mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
        mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
        mMediaRecorder.setVideoSize(optimalSize.width, optimalSize.height);
        mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
        mMediaRecorder.setVideoFrameRate(120);

        // Step 4: Set output file
        mMediaRecorder.setOutputFile(mFile.toString());

        // END_INCLUDE (configure_media_recorder)

        // Step 5: Prepare configured MediaRecorder
        try {
            mMediaRecorder.prepare();
        } catch (IllegalStateException e) {
            Log.d(TAG, "IllegalStateException preparing MediaRecorder: " + e.getMessage());
            releaseMediaRecorder();
            return false;
        } catch (IOException e) {
            Log.d(TAG, "IOException preparing MediaRecorder: " + e.getMessage());
            releaseMediaRecorder();
            return false;
        }
        return true;
    }