Convert config updating and video/audio queues to use zmq (#9893)

* Add config pub / sub pattern

* remove recording from feature metrics

* remove audio and feature metrics

* Check for updates from all cameras

* remove birdseye from camera metrics

* remove motion and detection camera metrics

* Ensure that all processes are stopped

* Stop communicators

* Detections

* Cleanup video output queue

* Use select for time sensitive polls

* Use ipc instead of tcp

frigate/video.py

@@ -11,6 +11,7 @@ import time
 import cv2
 from setproctitle import setproctitle
 
+from frigate.comms.config_updater import ConfigSubscriber
 from frigate.comms.inter_process import InterProcessRequestor
 from frigate.config import CameraConfig, DetectConfig, ModelConfig
 from frigate.const import (
@@ -406,11 +407,6 @@ def track_camera(
     listen()
 
     frame_queue = process_info["frame_queue"]
-    detection_enabled = process_info["detection_enabled"]
-    motion_enabled = process_info["motion_enabled"]
-    improve_contrast_enabled = process_info["improve_contrast_enabled"]
-    motion_threshold = process_info["motion_threshold"]
-    motion_contour_area = process_info["motion_contour_area"]
 
     frame_shape = config.frame_shape
     objects_to_track = config.objects.track
@@ -420,9 +416,6 @@ def track_camera(
         frame_shape,
         config.motion,
         config.detect.fps,
-        improve_contrast_enabled,
-        motion_threshold,
-        motion_contour_area,
     )
     object_detector = RemoteObjectDetector(
         name, labelmap, detection_queue, result_connection, model_config, stop_event
@@ -450,8 +443,6 @@ def track_camera(
         process_info,
         objects_to_track,
         object_filters,
-        detection_enabled,
-        motion_enabled,
         stop_event,
         ptz_metrics,
         region_grid,
@@ -519,8 +510,6 @@ def process_frames(
     process_info: dict,
     objects_to_track: list[str],
     object_filters,
-    detection_enabled: mp.Value,
-    motion_enabled: mp.Value,
     stop_event,
     ptz_metrics: PTZMetricsTypes,
     region_grid,
@@ -530,6 +519,7 @@ def process_frames(
     detection_fps = process_info["detection_fps"]
     current_frame_time = process_info["detection_frame"]
     next_region_update = get_tomorrow_at_time(2)
+    config_subscriber = ConfigSubscriber(f"config/detect/{camera_name}")
 
     fps_tracker = EventsPerSecond()
     fps_tracker.start()
@@ -540,6 +530,12 @@ def process_frames(
     region_min_size = get_min_region_size(model_config)
 
     while not stop_event.is_set():
+        # check for updated detect config
+        _, updated_detect_config = config_subscriber.check_for_update()
+
+        if updated_detect_config:
+            detect_config = updated_detect_config
+
         if (
             datetime.datetime.now().astimezone(datetime.timezone.utc)
             > next_region_update
@@ -570,13 +566,13 @@ def process_frames(
             continue
 
         # look for motion if enabled
-        motion_boxes = motion_detector.detect(frame) if motion_enabled.value else []
+        motion_boxes = motion_detector.detect(frame)
 
         regions = []
         consolidated_detections = []
 
         # if detection is disabled
-        if not detection_enabled.value:
+        if not detect_config.enabled:
             object_tracker.match_and_update(frame_time, [])
         else:
             # get stationary object ids
@@ -821,4 +817,6 @@ def process_frames(
             detection_fps.value = object_detector.fps.eps()
             frame_manager.close(f"{camera_name}{frame_time}")
 
+    motion_detector.stop()
     requestor.stop()
+    config_subscriber.stop()