safe changes for birdseye dynamic config

frigate/output/birdseye.py

@@ -273,17 +273,13 @@ class BirdsEyeFrameManager:
         stop_event: mp.Event,
     ):
         self.config = config
-        self.mode = config.birdseye.mode
         width, height = get_canvas_shape(config.birdseye.width, config.birdseye.height)
         self.frame_shape = (height, width)
         self.yuv_shape = (height * 3 // 2, width)
         self.frame = np.ndarray(self.yuv_shape, dtype=np.uint8)
         self.canvas = Canvas(width, height, config.birdseye.layout.scaling_factor)
         self.stop_event = stop_event
-        self.inactivity_threshold = config.birdseye.inactivity_threshold
+        self.last_refresh_time = 0
-
-        if config.birdseye.layout.max_cameras:
-            self.last_refresh_time = 0
 
         # initialize the frame as black and with the Frigate logo
         self.blank_frame = np.zeros(self.yuv_shape, np.uint8)
@@ -426,7 +422,7 @@ class BirdsEyeFrameManager:
                 and self.config.cameras[cam].enabled
                 and cam_data["last_active_frame"] > 0
                 and cam_data["current_frame_time"] - cam_data["last_active_frame"]
-                < self.inactivity_threshold
+                < self.config.birdseye.inactivity_threshold
             ]
         )
         logger.debug(f"Active cameras: {active_cameras}")

frigate/output/output.py

@@ -15,6 +15,7 @@ from ws4py.server.wsgirefserver import (
 )
 from ws4py.server.wsgiutils import WebSocketWSGIApplication
 
+from frigate.comms.config_updater import ConfigSubscriber
 from frigate.comms.detections_updater import DetectionSubscriber, DetectionTypeEnum
 from frigate.comms.ws import WebSocket
 from frigate.config import FrigateConfig
@@ -138,6 +139,7 @@ class OutputProcess(FrigateProcess):
                 CameraConfigUpdateEnum.record,
             ],
         )
+        birdseye_config_subscriber = ConfigSubscriber("config/birdseye", exact=True)
 
         jsmpeg_cameras: dict[str, JsmpegCamera] = {}
         birdseye: Birdseye | None = None
@@ -167,6 +169,20 @@ class OutputProcess(FrigateProcess):
         websocket_thread.start()
 
         while not self.stop_event.is_set():
+            update_topic, birdseye_config = (
+                birdseye_config_subscriber.check_for_update()
+            )
+
+            if update_topic is not None:
+                previous_global_mode = self.config.birdseye.mode
+                self.config.birdseye = birdseye_config
+
+                for camera_config in self.config.cameras.values():
+                    if camera_config.birdseye.mode == previous_global_mode:
+                        camera_config.birdseye.mode = birdseye_config.mode
+
+                logger.debug("Applied dynamic birdseye config update")
+
             # check if there is an updated config
             updates = config_subscriber.check_for_updates()
 
@@ -297,6 +313,7 @@ class OutputProcess(FrigateProcess):
             birdseye.stop()
 
         config_subscriber.stop()
+        birdseye_config_subscriber.stop()
         websocket_server.manager.close_all()
         websocket_server.manager.stop()
         websocket_server.manager.join()

web/src/components/config-form/section-configs/birdseye.ts

@@ -28,10 +28,7 @@ const birdseye: SectionConfigOverrides = {
       "width",
       "height",
       "quality",
-      "mode",
       "layout.scaling_factor",
-      "inactivity_threshold",
-      "layout.max_cameras",
       "idle_heartbeat_fps",
     ],
     uiSchema: {