가로 또는 세로보기 뷰 설정

- (UIView *)videoPreviewWithFrame:(CGRect)frame 

{

    videoPreviewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:[self captureSession]];

    [videoPreviewLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill];

    if ([videoPreviewLayer isOrientationSupported]) {

        videoPreviewLayer.orientation = AVCaptureVideoOrientationLandscapeRight;

    }

    videoPreviewLayer.frame = frame;

    

    UIView *tempView = [[UIView alloc] init];

    [tempView.layer addSublayer:videoPreviewLayer];

    tempView.frame = frame;

    

    return tempView;

}

사용은 이렇게

// 레이어 설정

UIView *preView = [self videoPreviewWithFrame:CGRectMake(0, 0, 480, 320)];

[self.view addSubview:preView];