Delegate starting stream worker

openflexure_microscope/camera/base.py

@@ -30,15 +30,10 @@ class BaseCamera(metaclass=ABCMeta):
         self.event = ClientEvent()
         self.stop = False  # Used to indicate that the stream loop should break
 
-        self.stream_timeout = 20
-
         self.stream_active = False
         self.record_active = False
         self.preview_active = False
 
-        # Start the stream worker on init
-        self.start_worker()
-
     @property
     @abstractmethod
     def configuration(self):

openflexure_microscope/camera/pi.py

@@ -116,6 +116,8 @@ class PiCameraStreamer(BaseCamera):
             "picamera_lst.npy"
         )  #: str: Path of .npy lens shading table file
         
+        # Start the stream worker on init
+        self.start_worker()
 
     @property
     def configuration(self):