frigate/frigate/storage.py
2022-10-08 18:43:38 -06:00

46 lines
1.4 KiB
Python

"""Handle storage retention and usage."""
import logging
import threading
from peewee import SqliteDatabase, operator, fn, DoesNotExist
from frigate.config import FrigateConfig
from frigate.models import Recordings
logger = logging.getLogger(__name__)
class StorageMaintainer(threading.Thread):
"""Maintain frigates recording storage."""
def __init__(self, config: FrigateConfig, stop_event):
threading.Thread.__init__(self)
self.name = "recording_cleanup"
self.config = config
self.stop_event = stop_event
self.avg_segment_sizes = {}
def calculate_camera_segment_sizes(self):
"""Calculate the size of each cameras recording segments."""
for camera in self.config.cameras.keys():
if not self.config.cameras[camera].record.enabled:
continue
self.avg_segment_sizes[camera] = (
Recordings.select(fn.AVG(Recordings.segment_size))
.where(Recordings.camera == camera)
.where(Recordings.segment_size != 0)
.scalar()
)
def run(self):
# Check storage consumption every 5 minutes
while not self.stop_event.wait(20):
if not self.avg_segment_sizes:
self.calculate_camera_segment_sizes()
logger.debug(f"Default camera segment sizes: {self.avg_segment_sizes}")
logger.info(f"Exiting storage maintainer...")