video: fix fps notation

Author: tito

kivy/core/camera/camera_opencv.py

@@ -63,7 +63,7 @@ def init_camera(self):
         #get fps
         self.fps = cv.GetCaptureProperty(self._device, cv.CV_CAP_PROP_FPS)
         if self.fps <= 0:
-            self.fps = 1/30
+            self.fps = 1 / 30.
 
         if not self.stopped:
             self.start()

kivy/core/camera/camera_videocapture.py

@@ -34,7 +34,7 @@ def init_camera(self):
             self._device.setResolution(self.resolution[0], self.resolution[1])
         except:
             raise Exception('VideoCapture: Resolution not supported')
-        self.fps = 1 / 30
+        self.fps = 1 / 30.
 
     def _update(self, dt):
         data, camera_width, camera_height = self._device.getBuffer()

kivy/uix/video.py

@@ -95,6 +95,8 @@ def __init__(self, **kwargs):
         super(Video, self).__init__(**kwargs)
 
     def texture_update(self, *largs):
+        '''This method is a no-op in Video widget.
+        '''
         pass
 
     def on_source(self, instance, value):