Dynamically update masks and zones for cameras (#18359)

* Include config publisher in api

* Call update topic for passed topics

* Update zones dynamically

* Update zones internally

* Support zone and mask reset

* Handle updating objects config

* Don't put status for needing to restart Frigate

* Cleanup http tests

* Fix tests

frigate/motion/__init__.py

@@ -1,6 +1,8 @@
 from abc import ABC, abstractmethod
 from typing import Tuple
 
+from numpy import ndarray
+
 from frigate.config import MotionConfig
 
 
@@ -18,13 +20,21 @@ class MotionDetector(ABC):
         pass
 
     @abstractmethod
-    def detect(self, frame):
+    def detect(self, frame: ndarray) -> list:
+        """Detect motion and return motion boxes."""
         pass
 
     @abstractmethod
     def is_calibrating(self):
+        """Return if motion is recalibrating."""
+        pass
+
+    @abstractmethod
+    def update_mask(self) -> None:
+        """Update the motion mask after a config change."""
         pass
 
     @abstractmethod
     def stop(self):
+        """Stop any ongoing work and processes."""
         pass

frigate/motion/improved_motion.py

@@ -35,12 +35,7 @@ class ImprovedMotionDetector(MotionDetector):
         self.avg_frame = np.zeros(self.motion_frame_size, np.float32)
         self.motion_frame_count = 0
         self.frame_counter = 0
-        resized_mask = cv2.resize(
-            config.mask,
-            dsize=(self.motion_frame_size[1], self.motion_frame_size[0]),
-            interpolation=cv2.INTER_AREA,
-        )
-        self.mask = np.where(resized_mask == [0])
+        self.update_mask()
         self.save_images = False
         self.calibrating = True
         self.blur_radius = blur_radius
@@ -236,6 +231,14 @@ class ImprovedMotionDetector(MotionDetector):
 
         return motion_boxes
 
+    def update_mask(self) -> None:
+        resized_mask = cv2.resize(
+            self.config.mask,
+            dsize=(self.motion_frame_size[1], self.motion_frame_size[0]),
+            interpolation=cv2.INTER_AREA,
+        )
+        self.mask = np.where(resized_mask == [0])
+
     def stop(self) -> None:
         """stop the motion detector."""
         pass