在captureOutput中更改UIView的位置

import AVFoundation

class ViewController: UIViewController, AVCaptureVideoDataOutputSampleBufferDelegate {
    var captureSession: AVCaptureSession!
    var videoPreviewLayer: AVCaptureVideoPreviewLayer!
    var targetView: UIView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建AVCaptureSession对象
        captureSession = AVCaptureSession()
        
        // 获取摄像头设备
        guard let videoDevice = AVCaptureDevice.default(for: .video) else { return }
        
        do {
            // 创建输入设备
            let videoInput = try AVCaptureDeviceInput(device: videoDevice)
            
            // 将输入设备添加到会话
            if captureSession.canAddInput(videoInput) {
                captureSession.addInput(videoInput)
            }
            
            // 创建输出设备
            let videoOutput = AVCaptureVideoDataOutput()
            
            // 设置输出设备的代理
            videoOutput.setSampleBufferDelegate(self, queue: DispatchQueue.main)
            
            // 将输出设备添加到会话
            if captureSession.canAddOutput(videoOutput) {
                captureSession.addOutput(videoOutput)
            }
            
            // 创建预览图层
            videoPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
            videoPreviewLayer.videoGravity = .resizeAspectFill
            videoPreviewLayer.frame = view.layer.bounds
            view.layer.addSublayer(videoPreviewLayer)
            
            // 创建目标视图
            targetView = UIView(frame: CGRect(x: 100, y: 100, width: 200, height: 200))
            targetView.backgroundColor = UIColor.red
            view.addSubview(targetView)
            
            // 启动会话
            captureSession.startRunning()
        } catch {
            print(error)
        }
    }
    
    // AVCaptureVideoDataOutputSampleBufferDelegate方法
    func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
        // 处理视频帧数据
        
        // 更改UIView的位置
        DispatchQueue.main.async {
            self.targetView.frame.origin.x += 1
            self.targetView.frame.origin.y += 1
        }
    }
}