import json import logging import multiprocessing as mp import os import signal import sys import threading from logging.handlers import QueueHandler from typing import Dict, List import traceback import yaml from peewee_migrate import Router from playhouse.sqlite_ext import SqliteExtDatabase from playhouse.sqliteq import SqliteQueueDatabase from pydantic import ValidationError from frigate.config import DetectorTypeEnum, FrigateConfig from frigate.const import CACHE_DIR, CLIPS_DIR, RECORD_DIR, PLUS_ENV_VAR, PLUS_API_HOST 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.version import VERSION from frigate.video import capture_camera, track_camera from frigate.watchdog import FrigateWatchdog logger = logging.getLogger(__name__) class FrigateApp: def __init__(self): self.stop_event = mp.Event() self.base_config: FrigateConfig = None self.config: FrigateConfig = None self.detection_queue = mp.Queue() self.detectors: Dict[str, EdgeTPUProcess] = {} self.detection_out_events: Dict[str, mp.Event] = {} self.detection_shms: List[mp.shared_memory.SharedMemory] = [] self.log_queue = mp.Queue() self.plus_api = ( PlusApi(PLUS_API_HOST, os.environ.get(PLUS_ENV_VAR)) if PLUS_ENV_VAR in os.environ else None ) self.camera_metrics = {} def set_environment_vars(self): for key, value in self.config.environment_vars.items(): os.environ[key] = value def ensure_dirs(self): 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): 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): 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 ), "improve_contrast_enabled": mp.Value( "i", self.config.cameras[camera_name].motion.improve_contrast ), "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), } def set_log_levels(self): 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): # Queues for clip processing self.event_queue = mp.Queue() self.event_processed_queue = mp.Queue() self.video_output_queue = mp.Queue(maxsize=len(self.config.cameras.keys()) * 2) # Queue for cameras to push tracked objects to self.detected_frames_queue = mp.Queue( maxsize=len(self.config.cameras.keys()) * 2 ) # Queue for recordings info self.recordings_info_queue = mp.Queue() def init_database(self): # 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): self.stats_tracking = stats_init(self.camera_metrics, self.detectors) def init_web_server(self): self.flask_app = create_app( self.config, self.db, self.stats_tracking, self.detected_frames_processor, self.plus_api, ) def init_mqtt(self): self.mqtt_client = create_mqtt_client(self.config, self.camera_metrics) def start_mqtt_relay(self): self.mqtt_relay = MqttSocketRelay( self.mqtt_client, self.config.mqtt.topic_prefix ) self.mqtt_relay.start() def start_detectors(self): 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): 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): 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): 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): 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): 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): self.event_cleanup = EventCleanup(self.config, self.stop_event) self.event_cleanup.start() def start_recording_maintainer(self): self.recording_maintainer = RecordingMaintainer( self.config, self.recordings_info_queue, self.stop_event ) self.recording_maintainer.start() def start_recording_cleanup(self): self.recording_cleanup = RecordingCleanup(self.config, self.stop_event) self.recording_cleanup.start() def start_stats_emitter(self): 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): self.frigate_watchdog = FrigateWatchdog(self.detectors, self.stop_event) self.frigate_watchdog.start() def start(self): 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_stats_emitter() self.start_watchdog() # self.zeroconf = broadcast_zeroconf(self.config.mqtt.client_id) def receiveSignal(signalNumber, frame): 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): 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()