iOS CvVideoCamera shows up sideways

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Hi,

I have been working with JavaCV for a while for a AR.Drone project and decided to try something on the iOS. I am trying to use the iPhone camera as a simulator for my drone so that I don't have to fly it all the time.

I am using CvVideoCamera to get the image. I got the image but for some reason the image is rotated 90 degree clockwise. Did anyone run into that problem before?

Here is what I have in the viewDidLoad method:

[super viewDidLoad];

self.video_camera = [[CvVideoCamera alloc] initWithParentView:image_view];
self.video_camera.delegate = self;
self.video_camera.defaultAVCaptureDevicePosition = AVCaptureDevicePositionBack;
self.video_camera.defaultAVCaptureVideoOrientation = AVCaptureVideoOrientationPortrait;
self.video_camera.defaultAVCaptureSessionPreset = AVCaptureSessionPreset352x288;
self.video_camera.defaultFPS = 30;
self.video_camera.grayscaleMode = NO;

Thank you, Kenny