deregister based on max_frames setting

frigate/objects.py

@@ -93,11 +93,33 @@ def update_position(self, id, box):
 
  return True
 
+ def is_expired(self, id):
+ obj = self.tracked_objects[id]
+ # get the max frames for this label type or the default
+ max_frames = self.detect_config.stationary.max_frames.objects.get(
+ obj["label"], self.detect_config.stationary.max_frames.default
+ )
+
+ # if there is no max_frames for this label type, continue
+ if max_frames is None:
+ return False
+
+ # if the object has exceeded the max_frames setting, deregister
+ if (
+ obj["motionless_count"] - self.detect_config.stationary.threshold
+ > max_frames
+ ):
+ print(f"expired: {obj['motionless_count']}")
+ return True
+
  def update(self, id, new_obj):
  self.disappeared[id] = 0
  # update the motionless count if the object has not moved to a new position
  if self.update_position(id, new_obj["box"]):
  self.tracked_objects[id]["motionless_count"] += 1
+ if self.is_expired(id):
+ self.deregister(id)
+ return
  else:
  # register the first position change and then only increment if
  # the object was previously stationary
@@ -112,9 +134,11 @@ def update(self, id, new_obj):
  self.tracked_objects[id].update(new_obj)
 
  def update_frame_times(self, frame_time):
- for id in self.tracked_objects.keys():
+ for id in list(self.tracked_objects.keys()):
  self.tracked_objects[id]["frame_time"] = frame_time
  self.tracked_objects[id]["motionless_count"] += 1
+ if self.is_expired(id):
+ self.deregister(id)
 
  def match_and_update(self, frame_time, new_objects):
  # group by name