Swift capture photos with portrait effect matte - swift

Question

I would like to implement a camera to capture portrait photos like apples default camera does. Portraiteffect and depnhdata is enabled in the PhotoSettings.
AVCapturePhotoSettings
self.output.isPortraitEffectsMatteDeliveryEnabled = true
self.output.isDepthDataDeliveryEnabled = true
photoSettings.isPortraitEffectsMatteDeliveryEnabled = true
photoSettings.isDepthDataDeliveryEnabled = true
photoSettings.embedsDepthDataInPhoto = true
photoSettings.embedsPortraitEffectsMatteInPhoto = true
printing the AVCapturePhoto.portraitEffectsMatte returns Optional(L008 2080x1170 v.1.1) but neither in my preview layer nor in the saved image is the portrait effect visible.
Additional context
AVCaptureDevice uses the builtInDualWideCamera
Printing the output.portraitEffekt logs also true
Full code:
class ViewController: UIViewController {
var session: AVCaptureSession?
var output = AVCapturePhotoOutput()
var previewLayer = AVCaptureVideoPreviewLayer()
private func setUpCamera(){
let session = AVCaptureSession()
if let device = AVCaptureDevice.default(.builtInDualWideCamera, for: .video, position: (useFrontCamera ? AVCaptureDevice.Position.front : AVCaptureDevice.Position.back)){
do {
let input = try AVCaptureDeviceInput(device: device)
if session.canAddInput(input){
session.addInput(input)
}
if session.canAddOutput(output){
session.addOutput(output)
}
previewLayer.videoGravity = .resizeAspectFill
previewLayer.session = session
session.startRunning()
self.session = session
}
catch {
print(error)
}
}
}
private func getSettings() -> AVCapturePhotoSettings{
var photoSettings = AVCapturePhotoSettings()
if(self.output.isPortraitEffectsMatteDeliverySupported && self.output.isDepthDataDeliverySupported){
self.output.isPortraitEffectsMatteDeliveryEnabled = true
self.output.isDepthDataDeliveryEnabled = true
photoSettings.isPortraitEffectsMatteDeliveryEnabled = true
photoSettings.isDepthDataDeliveryEnabled = true
photoSettings.embedsDepthDataInPhoto = true
photoSettings.embedsPortraitEffectsMatteInPhoto = true
}
return photoSettings
}
private funk takePhoto(){
self.output.capturePhoto(with: self.getSettings(), delegate: self)
}
}
extension ViewController: AVCapturePhotoCaptureDelegate {
func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) {
guard let data = photo.fileDataRepresentation() else { return}
let image = UIImage(data: data)
let imageView = UIImageView(image: image)
session?.stopRunning()
imageView.contentMode = .scaleAspectFill
imageView.frame = CGRect(x: 0, y: 0, width: view.frame.width/4, height: view.frame.height/4)
imageView.layer.name = "photoPreview"
view.addSubview(imageView)
UIImageWriteToSavedPhotosAlbum(image!, self, nil, nil)
}
}
```