mirror of
https://github.com/blakeblackshear/frigate.git
synced 2024-11-21 19:07:46 +01:00
136 lines
4.7 KiB
Python
136 lines
4.7 KiB
Python
import faulthandler; faulthandler.enable()
|
|
import os
|
|
import json
|
|
import yaml
|
|
import multiprocessing as mp
|
|
|
|
from playhouse.sqlite_ext import *
|
|
from typing import Dict, List
|
|
|
|
from frigate.config import FRIGATE_CONFIG_SCHEMA
|
|
from frigate.edgetpu import EdgeTPUProcess
|
|
from frigate.http import create_app
|
|
from frigate.models import Event
|
|
from frigate.mqtt import create_mqtt_client
|
|
from frigate.object_processing import TrackedObjectProcessor
|
|
from frigate.video import get_frame_shape
|
|
|
|
class FrigateApp():
|
|
def __init__(self):
|
|
self.stop_event = mp.Event()
|
|
self.config: dict = 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] = []
|
|
|
|
def init_config(self):
|
|
config_file = os.environ.get('CONFIG_FILE', '/config/config.yml')
|
|
|
|
if config_file.endswith(".yml"):
|
|
with open(config_file) as f:
|
|
config = yaml.safe_load(f)
|
|
elif config_file.endswith(".json"):
|
|
with open(config_file) as f:
|
|
config = json.load(f)
|
|
|
|
self.config = FRIGATE_CONFIG_SCHEMA(config)
|
|
|
|
for camera_config in self.config['cameras'].values():
|
|
if 'width' in camera_config and 'height' in camera_config:
|
|
frame_shape = (camera_config['height'], camera_config['width'], 3)
|
|
else:
|
|
frame_shape = get_frame_shape(camera_config['ffmpeg']['input'])
|
|
|
|
camera_config['frame_shape'] = frame_shape
|
|
|
|
# TODO: sub in FRIGATE_ENV vars
|
|
|
|
def init_queues(self):
|
|
# Queue for clip processing
|
|
self.event_queue = mp.Queue()
|
|
|
|
# Queue for cameras to push tracked objects to
|
|
self.detected_frames_queue = mp.Queue(maxsize=len(self.config['cameras'].keys())*2)
|
|
|
|
def init_database(self):
|
|
self.db = SqliteExtDatabase(f"/{os.path.join(self.config['save_clips']['clips_dir'], 'frigate.db')}")
|
|
models = [Event]
|
|
self.db.bind(models)
|
|
self.db.create_tables(models, safe=True)
|
|
|
|
def init_web_server(self):
|
|
self.flask_app = create_app(self.db)
|
|
|
|
def init_mqtt(self):
|
|
# TODO: create config class
|
|
mqtt_config = self.config['mqtt']
|
|
self.mqtt_client = create_mqtt_client(
|
|
mqtt_config['host'],
|
|
mqtt_config['port'],
|
|
mqtt_config['topic_prefix'],
|
|
mqtt_config['client_id'],
|
|
mqtt_config.get('user'),
|
|
mqtt_config.get('password')
|
|
)
|
|
|
|
def start_detectors(self):
|
|
for name in self.config['cameras'].keys():
|
|
self.detection_out_events[name] = mp.Event()
|
|
shm_in = mp.shared_memory.SharedMemory(name=name, create=True, size=300*300*3)
|
|
shm_out = mp.shared_memory.SharedMemory(name=f"out-{name}", create=True, size=20*6*4)
|
|
self.detection_shms.append(shm_in)
|
|
self.detection_shms.append(shm_out)
|
|
|
|
for name, detector in self.config['detectors'].items():
|
|
if detector['type'] == 'cpu':
|
|
self.detectors[name] = EdgeTPUProcess(self.detection_queue, out_events=self.detection_out_events, tf_device='cpu')
|
|
if detector['type'] == 'edgetpu':
|
|
self.detectors[name] = EdgeTPUProcess(self.detection_queue, out_events=self.detection_out_events, tf_device=detector['device'])
|
|
|
|
def start_detected_frames_processor(self):
|
|
self.detected_frames_processor = TrackedObjectProcessor(self.config['cameras'], self.mqtt_client, self.config['mqtt']['topic_prefix'],
|
|
self.detected_frames_queue, self.event_queue, self.stop_event)
|
|
self.detected_frames_processor.start()
|
|
|
|
def start_frame_processors(self):
|
|
pass
|
|
|
|
def start_camera_capture_processes(self):
|
|
pass
|
|
|
|
def start_watchdog(self):
|
|
pass
|
|
|
|
def start(self):
|
|
self.init_config()
|
|
self.init_queues()
|
|
self.init_database()
|
|
self.init_web_server()
|
|
self.init_mqtt()
|
|
self.start_detectors()
|
|
self.start_detected_frames_processor()
|
|
self.start_frame_processors()
|
|
self.start_camera_capture_processes()
|
|
self.start_watchdog()
|
|
self.flask_app.run(host='0.0.0.0', port=self.config['web_port'], debug=False)
|
|
self.stop()
|
|
|
|
def stop(self):
|
|
self.stop_event.set()
|
|
|
|
self.detected_frames_processor.join()
|
|
|
|
for detector in self.detectors.values():
|
|
detector.stop()
|
|
|
|
while len(self.detection_shms) > 0:
|
|
shm = self.detection_shms.pop()
|
|
shm.close()
|
|
shm.unlink()
|
|
|
|
if __name__ == '__main__':
|
|
frigate_app = FrigateApp()
|
|
|
|
frigate_app.start()
|