release: bump version to 0.71.0

motion_agent/cameras.py

@@ -70,13 +70,14 @@ class UsbCameraInput:
                 "or start the agent with --dry-run for protocol testing."
             ) from exc
 
-        capture = cv2.VideoCapture(self.spec.index)
+        capture = cv2.VideoCapture(self.spec.index, cv2.CAP_V4L2)
         if not capture or not capture.isOpened():
             raise MotionAgentCameraError(f"Unable to open USB camera index {self.spec.index}.")
 
         capture.set(cv2.CAP_PROP_FRAME_WIDTH, self.spec.width)
         capture.set(cv2.CAP_PROP_FRAME_HEIGHT, self.spec.height)
         capture.set(cv2.CAP_PROP_FPS, self.spec.fps)
+        capture.set(cv2.CAP_PROP_BUFFERSIZE, 1)
         self._capture = capture
 
     def read(self) -> Any:
@@ -116,6 +117,7 @@ class UrlCameraInput:
                 f"Unable to open camera URL {self.spec.url}. Check the stream URL, "
                 "firewall, and LAN reachability."
             )
+        capture.set(cv2.CAP_PROP_BUFFERSIZE, 1)
         self._capture = capture
 
     def read(self) -> Any: