blakeblackshear.frigate/frigate/app.py
Nicolas Mowen b4d4adb75b
Limit recording retention to available storage (#3942)
* Add field and migration for segment size

* Store the segment size in db

* Add comment

* Add default

* Fix size parsing

* Include segment size in recordings endpoint

* Start adding storage maintainer

* Add storage maintainer and calculate average sizes

* Update comment

* Store segment and hour avg sizes per camera

* Formatting

* Keep track of total segment and hour averages

* Remove unused files

* Cleanup 2 hours of recordings at a time

* Formatting

* Fix bug

* Round segment size

* Cleanup some comments

* Handle case where segments are not deleted on initial run or is only retained segments

* Improve cleanup log

* Formatting

* Fix typo and improve logging

* Catch case where no recordings exist for camera

* Specifically define sort

* Handle edge case for cameras that only record part time

* Increase definition of part time recorder

* Remove warning about not supported storage based retention

* Add note about storage based retention to recording docs

* Add tests for storage maintenance calculation and cleanup

* Format tests

* Don't run for a camera with no recording segments

* Get size of file from cache

* Rework camera stats to be more efficient

* Remove total and other inefficencies

* Rewrite storage cleanup logic to be much more efficient

* Fix existing tests

* Fix bugs from tests

* Add another test

* Improve logging

* Formatting

* Set back correct loop time

* Update name

* Update comment

* Only include segments that have a nonzero size

* Catch case where camera has 0 nonzero segment durations

* Add test to cover zero bandwidth migration case

* Fix test

* Incorrect boolean logic

* Formatting

* Explicity re-define iterator
2022-10-09 06:28:26 -05:00

410 lines
15 KiB
Python

import logging
import multiprocessing as mp
from multiprocessing.queues import Queue
from multiprocessing.synchronize import Event
import os
import signal
import sys
from typing import Optional
from types import FrameType
import traceback
from peewee_migrate import Router
from playhouse.sqlite_ext import SqliteExtDatabase
from playhouse.sqliteq import SqliteQueueDatabase
from frigate.config import DetectorTypeEnum, FrigateConfig
from frigate.const import CACHE_DIR, CLIPS_DIR, RECORD_DIR
from frigate.edgetpu import EdgeTPUProcess
from frigate.events import EventCleanup, EventProcessor
from frigate.http import create_app
from frigate.log import log_process, root_configurer
from frigate.models import Event, Recordings
from frigate.mqtt import MqttSocketRelay, create_mqtt_client
from frigate.object_processing import TrackedObjectProcessor
from frigate.output import output_frames
from frigate.plus import PlusApi
from frigate.record import RecordingCleanup, RecordingMaintainer
from frigate.stats import StatsEmitter, stats_init
from frigate.storage import StorageMaintainer
from frigate.version import VERSION
from frigate.video import capture_camera, track_camera
from frigate.watchdog import FrigateWatchdog
from frigate.types import CameraMetricsTypes
logger = logging.getLogger(__name__)
class FrigateApp:
def __init__(self) -> None:
self.stop_event: Event = mp.Event()
self.detection_queue: Queue = mp.Queue()
self.detectors: dict[str, EdgeTPUProcess] = {}
self.detection_out_events: dict[str, Event] = {}
self.detection_shms: list[mp.shared_memory.SharedMemory] = []
self.log_queue: Queue = mp.Queue()
self.plus_api = PlusApi()
self.camera_metrics: dict[str, CameraMetricsTypes] = {}
def set_environment_vars(self) -> None:
for key, value in self.config.environment_vars.items():
os.environ[key] = value
def ensure_dirs(self) -> None:
for d in [RECORD_DIR, CLIPS_DIR, CACHE_DIR]:
if not os.path.exists(d) and not os.path.islink(d):
logger.info(f"Creating directory: {d}")
os.makedirs(d)
else:
logger.debug(f"Skipping directory: {d}")
def init_logger(self) -> None:
self.log_process = mp.Process(
target=log_process, args=(self.log_queue,), name="log_process"
)
self.log_process.daemon = True
self.log_process.start()
root_configurer(self.log_queue)
def init_config(self) -> None:
config_file = os.environ.get("CONFIG_FILE", "/config/config.yml")
# Check if we can use .yaml instead of .yml
config_file_yaml = config_file.replace(".yml", ".yaml")
if os.path.isfile(config_file_yaml):
config_file = config_file_yaml
user_config = FrigateConfig.parse_file(config_file)
self.config = user_config.runtime_config
for camera_name in self.config.cameras.keys():
# create camera_metrics
self.camera_metrics[camera_name] = {
"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", self.config.cameras[camera_name].detect.enabled
),
"motion_enabled": mp.Value("i", True),
"improve_contrast_enabled": mp.Value(
"i", self.config.cameras[camera_name].motion.improve_contrast
),
"motion_threshold": mp.Value(
"i", self.config.cameras[camera_name].motion.threshold
),
"motion_contour_area": mp.Value(
"i", self.config.cameras[camera_name].motion.contour_area
),
"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),
"capture_process": None,
"process": None,
}
def set_log_levels(self) -> None:
logging.getLogger().setLevel(self.config.logger.default.value.upper())
for log, level in self.config.logger.logs.items():
logging.getLogger(log).setLevel(level.value.upper())
if not "werkzeug" in self.config.logger.logs:
logging.getLogger("werkzeug").setLevel("ERROR")
def init_queues(self) -> None:
# Queues for clip processing
self.event_queue: Queue = mp.Queue()
self.event_processed_queue: Queue = mp.Queue()
self.video_output_queue: Queue = mp.Queue(
maxsize=len(self.config.cameras.keys()) * 2
)
# Queue for cameras to push tracked objects to
self.detected_frames_queue: Queue = mp.Queue(
maxsize=len(self.config.cameras.keys()) * 2
)
# Queue for recordings info
self.recordings_info_queue: Queue = mp.Queue()
def init_database(self) -> None:
# Migrate DB location
old_db_path = os.path.join(CLIPS_DIR, "frigate.db")
if not os.path.isfile(self.config.database.path) and os.path.isfile(
old_db_path
):
os.rename(old_db_path, self.config.database.path)
# Migrate DB schema
migrate_db = SqliteExtDatabase(self.config.database.path)
# Run migrations
del logging.getLogger("peewee_migrate").handlers[:]
router = Router(migrate_db)
router.run()
migrate_db.close()
self.db = SqliteQueueDatabase(self.config.database.path)
models = [Event, Recordings]
self.db.bind(models)
def init_stats(self) -> None:
self.stats_tracking = stats_init(self.camera_metrics, self.detectors)
def init_web_server(self) -> None:
self.flask_app = create_app(
self.config,
self.db,
self.stats_tracking,
self.detected_frames_processor,
self.plus_api,
)
def init_mqtt(self) -> None:
self.mqtt_client = create_mqtt_client(self.config, self.camera_metrics)
def start_mqtt_relay(self) -> None:
self.mqtt_relay = MqttSocketRelay(
self.mqtt_client, self.config.mqtt.topic_prefix
)
self.mqtt_relay.start()
def start_detectors(self) -> None:
model_path = self.config.model.path
model_shape = (self.config.model.height, self.config.model.width)
for name in self.config.cameras.keys():
self.detection_out_events[name] = mp.Event()
try:
shm_in = mp.shared_memory.SharedMemory(
name=name,
create=True,
size=self.config.model.height * self.config.model.width * 3,
)
except FileExistsError:
shm_in = mp.shared_memory.SharedMemory(name=name)
try:
shm_out = mp.shared_memory.SharedMemory(
name=f"out-{name}", create=True, size=20 * 6 * 4
)
except FileExistsError:
shm_out = mp.shared_memory.SharedMemory(name=f"out-{name}")
self.detection_shms.append(shm_in)
self.detection_shms.append(shm_out)
for name, detector in self.config.detectors.items():
if detector.type == DetectorTypeEnum.cpu:
self.detectors[name] = EdgeTPUProcess(
name,
self.detection_queue,
self.detection_out_events,
model_path,
model_shape,
"cpu",
detector.num_threads,
)
if detector.type == DetectorTypeEnum.edgetpu:
self.detectors[name] = EdgeTPUProcess(
name,
self.detection_queue,
self.detection_out_events,
model_path,
model_shape,
detector.device,
detector.num_threads,
)
def start_detected_frames_processor(self) -> None:
self.detected_frames_processor = TrackedObjectProcessor(
self.config,
self.mqtt_client,
self.config.mqtt.topic_prefix,
self.detected_frames_queue,
self.event_queue,
self.event_processed_queue,
self.video_output_queue,
self.recordings_info_queue,
self.stop_event,
)
self.detected_frames_processor.start()
def start_video_output_processor(self) -> None:
output_processor = mp.Process(
target=output_frames,
name=f"output_processor",
args=(
self.config,
self.video_output_queue,
),
)
output_processor.daemon = True
self.output_processor = output_processor
output_processor.start()
logger.info(f"Output process started: {output_processor.pid}")
def start_camera_processors(self) -> None:
model_shape = (self.config.model.height, self.config.model.width)
for name, config in self.config.cameras.items():
camera_process = mp.Process(
target=track_camera,
name=f"camera_processor:{name}",
args=(
name,
config,
model_shape,
self.config.model.merged_labelmap,
self.detection_queue,
self.detection_out_events[name],
self.detected_frames_queue,
self.camera_metrics[name],
),
)
camera_process.daemon = True
self.camera_metrics[name]["process"] = camera_process
camera_process.start()
logger.info(f"Camera processor started for {name}: {camera_process.pid}")
def start_camera_capture_processes(self) -> None:
for name, config in self.config.cameras.items():
capture_process = mp.Process(
target=capture_camera,
name=f"camera_capture:{name}",
args=(name, config, self.camera_metrics[name]),
)
capture_process.daemon = True
self.camera_metrics[name]["capture_process"] = capture_process
capture_process.start()
logger.info(f"Capture process started for {name}: {capture_process.pid}")
def start_event_processor(self) -> None:
self.event_processor = EventProcessor(
self.config,
self.camera_metrics,
self.event_queue,
self.event_processed_queue,
self.stop_event,
)
self.event_processor.start()
def start_event_cleanup(self) -> None:
self.event_cleanup = EventCleanup(self.config, self.stop_event)
self.event_cleanup.start()
def start_recording_maintainer(self) -> None:
self.recording_maintainer = RecordingMaintainer(
self.config, self.recordings_info_queue, self.stop_event
)
self.recording_maintainer.start()
def start_recording_cleanup(self) -> None:
self.recording_cleanup = RecordingCleanup(self.config, self.stop_event)
self.recording_cleanup.start()
def start_storage_maintainer(self) -> None:
self.storage_maintainer = StorageMaintainer(self.config, self.stop_event)
self.storage_maintainer.start()
def start_stats_emitter(self) -> None:
self.stats_emitter = StatsEmitter(
self.config,
self.stats_tracking,
self.mqtt_client,
self.config.mqtt.topic_prefix,
self.stop_event,
)
self.stats_emitter.start()
def start_watchdog(self) -> None:
self.frigate_watchdog = FrigateWatchdog(self.detectors, self.stop_event)
self.frigate_watchdog.start()
def start(self) -> None:
self.init_logger()
logger.info(f"Starting Frigate ({VERSION})")
try:
try:
self.init_config()
except Exception as e:
print("*************************************************************")
print("*************************************************************")
print("*** Your config file is not valid! ***")
print("*** Please check the docs at ***")
print("*** https://docs.frigate.video/configuration/index ***")
print("*************************************************************")
print("*************************************************************")
print("*** Config Validation Errors ***")
print("*************************************************************")
print(e)
print(traceback.format_exc())
print("*************************************************************")
print("*** End Config Validation Errors ***")
print("*************************************************************")
self.log_process.terminate()
sys.exit(1)
self.set_environment_vars()
self.ensure_dirs()
self.set_log_levels()
self.init_queues()
self.init_database()
self.init_mqtt()
except Exception as e:
print(e)
self.log_process.terminate()
sys.exit(1)
self.start_detectors()
self.start_video_output_processor()
self.start_detected_frames_processor()
self.start_camera_processors()
self.start_camera_capture_processes()
self.init_stats()
self.init_web_server()
self.start_mqtt_relay()
self.start_event_processor()
self.start_event_cleanup()
self.start_recording_maintainer()
self.start_recording_cleanup()
self.start_storage_maintainer()
self.start_stats_emitter()
self.start_watchdog()
# self.zeroconf = broadcast_zeroconf(self.config.mqtt.client_id)
def receiveSignal(signalNumber: int, frame: Optional[FrameType]) -> None:
self.stop()
sys.exit()
signal.signal(signal.SIGTERM, receiveSignal)
try:
self.flask_app.run(host="127.0.0.1", port=5001, debug=False)
except KeyboardInterrupt:
pass
self.stop()
def stop(self) -> None:
logger.info(f"Stopping...")
self.stop_event.set()
self.mqtt_relay.stop()
self.detected_frames_processor.join()
self.event_processor.join()
self.event_cleanup.join()
self.recording_maintainer.join()
self.recording_cleanup.join()
self.stats_emitter.join()
self.frigate_watchdog.join()
self.db.stop()
for detector in self.detectors.values():
detector.stop()
while len(self.detection_shms) > 0:
shm = self.detection_shms.pop()
shm.close()
shm.unlink()