如何将USB摄像头数据作为网络摄像头通过USB流传输？

Question

我熟悉简单的解决方案，只需在设备屏幕上流式传输，然后打开预览窗口并显示摄像机预览即可。

    let picker: UIImagePickerController = CustomUIImagePickerController()
    
    
    picker.delegate = self;
    picker.sourceType = .camera
    
    picker.setNavigationBarHidden(true, animated: false)
    picker.mediaTypes = [kUTTypeMovie as String, kUTTypeImage as String]
    picker.cameraCaptureMode = UIImagePickerController.CameraCaptureMode.video
    picker.videoQuality = UIImagePickerController.QualityType.typeHigh
    picker.showsCameraControls = false
    
    picker.cameraViewTransform.ty += 100;
    
    present(picker, animated: true, completion: nil)

以上解决方案仅以设备屏幕的分辨率流式传输。我需要一种将iPhone后置摄像头用作4k 30fps网络摄像头的方法。我知道我可以使用AVCam将视频以4k @ 30fps的速度写入文件，但是我不知道如何通过USB流式传输视频。