title: the specified colorspace format is not supported. falling back on libyuv
body: <p>I'm currently working on a camera app. Everything worked fine, but when I tried to change the constraints of the Vision View the log suddenly printed this error.</p>
  <p>[warning]the specified colorspace format is not supported. falling back on libyuv.</p>
  <p>I have no Idea where it comes from and what I should change. Below I'll past the relevant code where I set up the camera.</p>
  <pre><code>  func initializeCameraSession() {
              //  Set up Values
              
              //1:  Create a new AV Session
  //            , xf           , AVCaptureVideoDataOutputSampleBufferDelegate           // Get camera devices
              let devices = AVCaptureDevice.DiscoverySession(deviceTypes: [.builtInWideAngleCamera], mediaType: AVMediaType.video, position: .front).devices
              //2:  Select a capture device
              
              avSession.sessionPreset = .low
              do {
                  if let captureDevice = devices.first {
                  
                      let captureDeviceInput = try AVCaptureDeviceInput(device: captureDevice)
  
  
  
                      }
                     avSession.beginConfiguration()
                      if avSession.canAddInput(captureDeviceInput) {
                          avSession.addInput(captureDeviceInput)
                              self.videoDeviceInput = captureDeviceInput
                                  
                      } else {
                                  print(&quot;Couldn't add video device input to the session.&quot;)
                                  avSession.commitConfiguration()
                                  return
                              }
                      avSession.commitConfiguration()
                  }
                  
              } catch {
                  print(error.localizedDescription)
              }
              
              //3:  Show output on a preview layer
              let captureOutput = AVCaptureVideoDataOutput()
              captureOutput.setSampleBufferDelegate(self, queue: DispatchQueue(label: &quot;videoQueue&quot;))
              captureOutput.videoSettings = [(kCVPixelBufferPixelFormatTypeKey as String) : NSNumber(value: kCVPixelFormatType_32BGRA )]
              avSession.addOutput(captureOutput)
          
              
              let previewLayer = AVCaptureVideoPreviewLayer(session: avSession)
              previewLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill
              previewLayer.connection?.videoOrientation =  .portrait
              previewLayer.frame = visionView.bounds
              
          
                  visionView.layer.addSublayer(previewLayer)
  
                  view.bringSubviewToFront(visionView)
                  visionView.isHidden = true
              visionView.alpha = 0.0
                 avSession.startRunning()
              
          }
      
  }
  </code></pre>