如何使用AVFoundation和相机视图更改fps和隐藏状态栏

import AVFoundation

class CameraViewController: UIViewController, AVCaptureVideoDataOutputSampleBufferDelegate {
    var captureSession: AVCaptureSession?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建AVCaptureSession对象
        captureSession = AVCaptureSession()
        
        // 配置相机输入
        guard let captureDevice = AVCaptureDevice.default(for: .video) else { return }
        guard let input = try? AVCaptureDeviceInput(device: captureDevice) else { return }
        captureSession?.addInput(input)
        
        // 配置相机输出
        let videoOutput = AVCaptureVideoDataOutput()
        videoOutput.setSampleBufferDelegate(self, queue: DispatchQueue(label: "videoQueue"))
        captureSession?.addOutput(videoOutput)
        
        // 设置帧率
        do {
            try captureDevice.lockForConfiguration()
            captureDevice.activeVideoMinFrameDuration = CMTime(value: 1, timescale: 30) // 设置帧率为30fps
            captureDevice.activeVideoMaxFrameDuration = CMTime(value: 1, timescale: 30)
            captureDevice.unlockForConfiguration()
        } catch {
            print("Failed to set frame rate")
        }
        
        // 隐藏状态栏
        prefersStatusBarHidden = true
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        
        // 开始捕捉会话
        captureSession?.startRunning()
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)
        
        // 停止捕捉会话
        captureSession?.stopRunning()
    }
    
    // AVCaptureVideoDataOutputSampleBufferDelegate方法，处理视频数据
    func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
        // 在这里处理视频数据
    }
}