Merge remote-tracking branch 'origin/webcam-usage-sensor' into webcam-usage-sensor

UserInterface/Views/AddSensorDialog.axaml.cs

@@ -112,7 +112,7 @@ namespace UserInterface.Views
                     item.UpdateInterval = 5;
                     break;
                 case AvailableSensors.WebcamActiveSensor:
-                    item.Description = "This sensor shows if the webcam is currently in use.";
+                    item.Description = "This sensor shows if the webcam is currently being used.";
                     item.MoreInfoLink = "https://github.com/sleevezipper/hass-workstation-service#webcamactive";
                     item.ShowDetectionModeOptions = true;
                     item.ShowQueryInput = false;

hass-workstation-service/Domain/Sensors/WebcamActiveSensor.cs

@@ -49,6 +49,8 @@ namespace hass_workstation_service.Domain.Sensors
             {
                 VideoCapture capture = new VideoCapture(0);
                 OutputArray image = OutputArray.Create(new Mat());
+
+                // capture.Read() return false if it doesn't succeed in capturing
                 if (capture.Read(image))
                 {
                     capture.Release();