video capture code not working for iPhone4

Question

Hi can anybody help me with video capture code for iPhone4.

i am using the following code but it does not work it invokes the still camera not video:

UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init]; imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera; NSArray *arraySourceTypes =[UIImagePickerController availableMediaTypesForSourceType:imagePicker.sourceType];

if ([arraySourceTypes containsObject:(NSString *)kUTTypeMovie]){ imagePicker.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeMovie]; imagePicker.cameraDevice=UIImagePickerControllerCameraDeviceRear; imagePicker.cameraCaptureMode=UIImagePickerControllerCameraCaptureModeVideo; imagePicker.videoQuality=UIImagePickerControllerQualityTypeHigh; imagePicker.delegate = self; [self presentModalViewController:imagePicker animated:YES]; [imagePicker release]; } else [imagePicker release];