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cleanup the plasma store when finished with a frame

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This commit is contained in:
Blake Blackshear 2020-02-23 18:11:08 -06:00
parent 9340a74371
commit 2e8c7ec225
1 changed files with 36 additions and 27 deletions
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17
frigate/object_processing.py
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@ -34,7 +34,9 @@ class TrackedObjectProcessor(threading.Thread):
'best_objects': {},
'object_status': defaultdict(lambda: defaultdict(lambda: 'OFF')),
'tracked_objects': {},
'current_frame_time': None
'current_frame_time': None,
'current_frame': np.zeros((720,1280,3), np.uint8),
'object_id': None
})
def get_best(self, camera, label):
@ -64,8 +66,9 @@ class TrackedObjectProcessor(threading.Thread):
object_id_hash = hashlib.sha1(str.encode(f"{camera}{frame_time}"))
object_id_bytes = object_id_hash.digest()
object_id = plasma.ObjectID(object_id_bytes)
current_frame = self.plasma_client.get(object_id)
current_frame = self.plasma_client.get(object_id, timeout_ms=0)
if not current_frame is plasma.ObjectNotAvailable:
# draw the bounding boxes on the frame
for obj in tracked_objects.values():
thickness = 2
@ -92,6 +95,12 @@ class TrackedObjectProcessor(threading.Thread):
self.camera_data[camera]['current_frame'] = current_frame
self.camera_data[camera]['current_frame_time'] = frame_time
# store the object id, so you can delete it at the next loop
previous_object_id = self.camera_data[camera]['object_id']
if not previous_object_id is None:
self.plasma_client.delete([previous_object_id])
self.camera_data[camera]['object_id'] = object_id
###
# Maintain the highest scoring recent object and frame for each label
###
@ -104,10 +113,10 @@ class TrackedObjectProcessor(threading.Thread):
# if the object is a higher score than the current best score
# or the current object is more than 1 minute old, use the new object
if obj['score'] > best_objects[obj['label']]['score'] or (now - best_objects[obj['label']]['frame_time']) > 60:
obj['frame'] = np.copy(current_frame)
obj['frame'] = np.copy(self.camera_data[camera]['current_frame'])
best_objects[obj['label']] = obj
else:
obj['frame'] = np.copy(current_frame)
obj['frame'] = np.copy(self.camera_data[camera]['current_frame'])
best_objects[obj['label']] = obj
###