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enable and disable detection via mqtt

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This commit is contained in:
Blake Blackshear 2021-01-15 20:52:59 -06:00
parent c709851888
commit 39040c1874
3 changed files with 46 additions and 12 deletions
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5
frigate/app.py
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@ -70,11 +70,12 @@ class FrigateApp():
'camera_fps': mp.Value('d', 0.0),
'skipped_fps': mp.Value('d', 0.0),
'process_fps': mp.Value('d', 0.0),
'detection_enabled': mp.Value('i', 1),
'detection_fps': mp.Value('d', 0.0),
'detection_frame': mp.Value('d', 0.0),
'read_start': mp.Value('d', 0.0),
'ffmpeg_pid': mp.Value('i', 0),
'frame_queue': mp.Queue(maxsize=2)
'frame_queue': mp.Queue(maxsize=2),
}
def check_config(self):
@ -129,7 +130,7 @@ class FrigateApp():
self.flask_app = create_app(self.config, self.db, self.stats_tracking, self.detected_frames_processor)
def init_mqtt(self):
self.mqtt_client = create_mqtt_client(self.config)
self.mqtt_client = create_mqtt_client(self.config, self.camera_metrics)
def start_detectors(self):
model_shape = (self.config.model.height, self.config.model.width)

26
frigate/mqtt.py
View File

@ -7,7 +7,7 @@ from frigate.config import FrigateConfig
logger = logging.getLogger(__name__)
def create_mqtt_client(config: FrigateConfig):
def create_mqtt_client(config: FrigateConfig, camera_metrics):
mqtt_config = config.mqtt
def on_clips_command(client, userdata, message):
@ -57,6 +57,28 @@ def create_mqtt_client(config: FrigateConfig):
if command == "set":
state_topic = f"{message.topic[:-4]}/state"
client.publish(state_topic, payload, retain=True)
def on_detect_command(client, userdata, message):
payload = message.payload.decode()
logger.debug(f"on_detect_toggle: {message.topic} {payload}")
camera_name = message.topic.split('/')[-3]
command = message.topic.split('/')[-1]
if payload == 'ON':
if not camera_metrics[camera_name]["detection_enabled"].value:
logger.info(f"Turning on detection for {camera_name} via mqtt")
camera_metrics[camera_name]["detection_enabled"].value = True
elif payload == 'OFF':
if camera_metrics[camera_name]["detection_enabled"].value:
logger.info(f"Turning off detection for {camera_name} via mqtt")
camera_metrics[camera_name]["detection_enabled"].value = False
else:
logger.warning(f"Received unsupported value at {message.topic}: {payload}")
if command == "set":
state_topic = f"{message.topic[:-4]}/state"
client.publish(state_topic, payload, retain=True)
def on_connect(client, userdata, flags, rc):
threading.current_thread().name = "mqtt"
@ -81,6 +103,7 @@ def create_mqtt_client(config: FrigateConfig):
for name in config.cameras.keys():
client.message_callback_add(f"{mqtt_config.topic_prefix}/{name}/clips/#", on_clips_command)
client.message_callback_add(f"{mqtt_config.topic_prefix}/{name}/snapshots/#", on_snapshots_command)
client.message_callback_add(f"{mqtt_config.topic_prefix}/{name}/detection/#", on_detect_command)
if not mqtt_config.user is None:
client.username_pw_set(mqtt_config.user, password=mqtt_config.password)
@ -93,5 +116,6 @@ def create_mqtt_client(config: FrigateConfig):
client.loop_start()
client.subscribe(f"{mqtt_config.topic_prefix}/+/clips/#")
client.subscribe(f"{mqtt_config.topic_prefix}/+/snapshots/#")
client.subscribe(f"{mqtt_config.topic_prefix}/+/detection/#")
return client

27
frigate/video.py
View File

@ -255,6 +255,7 @@ def track_camera(name, config: CameraConfig, model_shape, detection_queue, resul
listen()
frame_queue = process_info['frame_queue']
detection_enabled = process_info['detection_enabled']
frame_shape = config.frame_shape
objects_to_track = config.objects.track
@ -268,7 +269,7 @@ def track_camera(name, config: CameraConfig, model_shape, detection_queue, resul
frame_manager = SharedMemoryFrameManager()
process_frames(name, frame_queue, frame_shape, model_shape, frame_manager, motion_detector, object_detector,
object_tracker, detected_objects_queue, process_info, objects_to_track, object_filters, stop_event)
object_tracker, detected_objects_queue, process_info, objects_to_track, object_filters, detection_enabled, stop_event)
logger.info(f"{name}: exiting subprocess")
@ -305,7 +306,7 @@ def process_frames(camera_name: str, frame_queue: mp.Queue, frame_shape, model_s
frame_manager: FrameManager, motion_detector: MotionDetector,
object_detector: RemoteObjectDetector, object_tracker: ObjectTracker,
detected_objects_queue: mp.Queue, process_info: Dict,
objects_to_track: List[str], object_filters, stop_event,
objects_to_track: List[str], object_filters, detection_enabled: mp.Value, stop_event,
exit_on_empty: bool = False):
fps = process_info['process_fps']
@ -336,6 +337,14 @@ def process_frames(camera_name: str, frame_queue: mp.Queue, frame_shape, model_s
logger.info(f"{camera_name}: frame {frame_time} is not in memory store.")
continue
if not detection_enabled.value:
fps.value = fps_tracker.eps()
object_tracker.match_and_update(frame_time, [])
detected_objects_queue.put((camera_name, frame_time, object_tracker.tracked_objects, [], []))
detection_fps.value = object_detector.fps.eps()
frame_manager.close(f"{camera_name}{frame_time}")
continue
# look for motion
motion_boxes = motion_detector.detect(frame)
@ -410,11 +419,11 @@ def process_frames(camera_name: str, frame_queue: mp.Queue, frame_shape, model_s
# add to the queue if not full
if(detected_objects_queue.full()):
frame_manager.delete(f"{camera_name}{frame_time}")
continue
frame_manager.delete(f"{camera_name}{frame_time}")
continue
else:
fps_tracker.update()
fps.value = fps_tracker.eps()
detected_objects_queue.put((camera_name, frame_time, object_tracker.tracked_objects, motion_boxes, regions))
detection_fps.value = object_detector.fps.eps()
frame_manager.close(f"{camera_name}{frame_time}")
fps_tracker.update()
fps.value = fps_tracker.eps()
detected_objects_queue.put((camera_name, frame_time, object_tracker.tracked_objects, motion_boxes, regions))
detection_fps.value = object_detector.fps.eps()
frame_manager.close(f"{camera_name}{frame_time}")