How do I process video frames in real time in Swift?

    import UIKit
    import AVFoundation

    class VideoProcessor: NSObject, AVCaptureVideoDataOutputSampleBufferDelegate {
        private var captureSession: AVCaptureSession!
        private var videoOutput: AVCaptureVideoDataOutput!

        override init() {
            super.init()
            setupCamera()
        }

        private func setupCamera() {
            captureSession = AVCaptureSession()
            guard let videoCaptureDevice = AVCaptureDevice.default(for: .video) else { return }
            let videoInput: AVCaptureDeviceInput

            do {
                videoInput = try AVCaptureDeviceInput(device: videoCaptureDevice)
            } catch {
                return
            }

            if (captureSession.canAddInput(videoInput)) {
                captureSession.addInput(videoInput)
            } else {
                return
            }

            videoOutput = AVCaptureVideoDataOutput()
            videoOutput.setSampleBufferDelegate(self, queue: DispatchQueue(label: "videoQueue"))
            if (captureSession.canAddOutput(videoOutput)) {
                captureSession.addOutput(videoOutput)
            }

            captureSession.startRunning()
        }

        func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
            // Process the video frame here
            guard let pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer) else { return }
            // Analyze the pixelBuffer as needed
        }
    }