Getting a camera to work in portrait mode

I added a camera to my application, which is in Portrait mode, so I would like to save it that way.

Here are the relevant code snippets that I use in my .XAML

SupportedOrientations="Portrait" Orientation="Portrait"
mc:Ignorable="d" d:DesignHeight="800" d:DesignWidth="480"

    <Canvas x:Name="viewfinderCanvas" Width="480" Height="800" >
        <!--Camera viewfinder -->
        <Canvas.Background>
            <VideoBrush x:Name="viewfinderBrush">
            </VideoBrush>
        </Canvas.Background>
    </Canvas>    

Here is my installation code from .XAML.CS

    protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
    {
         if (PhotoCamera.IsCameraTypeSupported(CameraType.FrontFacing))
         {
            cam = new Microsoft.Devices.PhotoCamera(CameraType.FrontFacing);
         }
         else
         {
            cam = new Microsoft.Devices.PhotoCamera(CameraType.Primary);
         }

         cam.Initialized += new EventHandler<Microsoft.Devices.CameraOperationCompletedEventArgs>(cam_Initialized);
         cam.CaptureCompleted += new EventHandler<CameraOperationCompletedEventArgs>(cam_CaptureCompleted);
         cam.CaptureImageAvailable += new EventHandler<Microsoft.Devices.ContentReadyEventArgs>(cam_CaptureImageAvailable);
         cam.CaptureThumbnailAvailable += new EventHandler<ContentReadyEventArgs>(cam_CaptureThumbnailAvailable);
         viewfinderBrush.SetSource(cam);
    }

The problem is that I hold the phone in “Portrait” and point to the person’s phone. The screen displays the head of the people on the right side of the screen and the faces located to the left of the screen. Although, when they stand in front of me, the head should be at the top of the screen, and the legs in the bush, because these people are not supermen.

So, it seems that the camera image rotates -90 before it appears on the screen.

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