blakeblackshear.frigate/frigate/comms/dispatcher.py

367 lines
15 KiB
Python

"""Handle communication between Frigate and other applications."""
import logging
from abc import ABC, abstractmethod
from typing import Any, Callable, Optional
from frigate.comms.config_updater import ConfigPublisher
from frigate.config import BirdseyeModeEnum, FrigateConfig
from frigate.const import (
INSERT_MANY_RECORDINGS,
INSERT_PREVIEW,
REQUEST_REGION_GRID,
UPSERT_REVIEW_SEGMENT,
)
from frigate.models import Previews, Recordings, ReviewSegment
from frigate.ptz.onvif import OnvifCommandEnum, OnvifController
from frigate.types import PTZMetricsTypes
from frigate.util.object import get_camera_regions_grid
from frigate.util.services import restart_frigate
logger = logging.getLogger(__name__)
class Communicator(ABC):
"""pub/sub model via specific protocol."""
@abstractmethod
def publish(self, topic: str, payload: Any, retain: bool = False) -> None:
"""Send data via specific protocol."""
pass
@abstractmethod
def subscribe(self, receiver: Callable) -> None:
"""Pass receiver so communicators can pass commands."""
pass
@abstractmethod
def stop(self) -> None:
"""Stop the communicator."""
pass
class Dispatcher:
"""Handle communication between Frigate and communicators."""
def __init__(
self,
config: FrigateConfig,
config_updater: ConfigPublisher,
onvif: OnvifController,
ptz_metrics: dict[str, PTZMetricsTypes],
communicators: list[Communicator],
) -> None:
self.config = config
self.config_updater = config_updater
self.onvif = onvif
self.ptz_metrics = ptz_metrics
self.comms = communicators
self._camera_settings_handlers: dict[str, Callable] = {
"audio": self._on_audio_command,
"detect": self._on_detect_command,
"improve_contrast": self._on_motion_improve_contrast_command,
"ptz_autotracker": self._on_ptz_autotracker_command,
"motion": self._on_motion_command,
"motion_contour_area": self._on_motion_contour_area_command,
"motion_threshold": self._on_motion_threshold_command,
"recordings": self._on_recordings_command,
"snapshots": self._on_snapshots_command,
"birdseye": self._on_birdseye_command,
"birdseye_mode": self._on_birdseye_mode_command,
}
for comm in self.comms:
comm.subscribe(self._receive)
def _receive(self, topic: str, payload: str) -> Optional[Any]:
"""Handle receiving of payload from communicators."""
if topic.endswith("set"):
try:
# example /cam_name/detect/set payload=ON|OFF
camera_name = topic.split("/")[-3]
command = topic.split("/")[-2]
self._camera_settings_handlers[command](camera_name, payload)
except IndexError:
logger.error(f"Received invalid set command: {topic}")
return
elif topic.endswith("ptz"):
try:
# example /cam_name/ptz payload=MOVE_UP|MOVE_DOWN|STOP...
camera_name = topic.split("/")[-2]
self._on_ptz_command(camera_name, payload)
except IndexError:
logger.error(f"Received invalid ptz command: {topic}")
return
elif topic == "restart":
restart_frigate()
elif topic == INSERT_MANY_RECORDINGS:
Recordings.insert_many(payload).execute()
elif topic == REQUEST_REGION_GRID:
camera = payload
grid = get_camera_regions_grid(
camera,
self.config.cameras[camera].detect,
max(self.config.model.width, self.config.model.height),
)
return grid
elif topic == INSERT_PREVIEW:
Previews.insert(payload).execute()
elif topic == UPSERT_REVIEW_SEGMENT:
(
ReviewSegment.insert(payload)
.on_conflict(
conflict_target=[ReviewSegment.id],
update=payload,
)
.execute()
)
else:
self.publish(topic, payload, retain=False)
def publish(self, topic: str, payload: Any, retain: bool = False) -> None:
"""Handle publishing to communicators."""
for comm in self.comms:
comm.publish(topic, payload, retain)
def stop(self) -> None:
for comm in self.comms:
comm.stop()
def _on_detect_command(self, camera_name: str, payload: str) -> None:
"""Callback for detect topic."""
detect_settings = self.config.cameras[camera_name].detect
motion_settings = self.config.cameras[camera_name].motion
if payload == "ON":
if not detect_settings.enabled:
logger.info(f"Turning on detection for {camera_name}")
detect_settings.enabled = True
if not motion_settings.enabled:
logger.info(
f"Turning on motion for {camera_name} due to detection being enabled."
)
motion_settings.enabled = True
self.config_updater.publish(
f"config/motion/{camera_name}", motion_settings
)
self.publish(f"{camera_name}/motion/state", payload, retain=True)
elif payload == "OFF":
if detect_settings.enabled:
logger.info(f"Turning off detection for {camera_name}")
detect_settings.enabled = False
self.config_updater.publish(f"config/detect/{camera_name}", detect_settings)
self.publish(f"{camera_name}/detect/state", payload, retain=True)
def _on_motion_command(self, camera_name: str, payload: str) -> None:
"""Callback for motion topic."""
detect_settings = self.config.cameras[camera_name].detect
motion_settings = self.config.cameras[camera_name].motion
if payload == "ON":
if not motion_settings.enabled:
logger.info(f"Turning on motion for {camera_name}")
motion_settings.enabled = True
elif payload == "OFF":
if detect_settings.enabled:
logger.error(
"Turning off motion is not allowed when detection is enabled."
)
return
if motion_settings.enabled:
logger.info(f"Turning off motion for {camera_name}")
motion_settings.enabled = False
self.config_updater.publish(f"config/motion/{camera_name}", motion_settings)
self.publish(f"{camera_name}/motion/state", payload, retain=True)
def _on_motion_improve_contrast_command(
self, camera_name: str, payload: str
) -> None:
"""Callback for improve_contrast topic."""
motion_settings = self.config.cameras[camera_name].motion
if payload == "ON":
if not motion_settings.improve_contrast:
logger.info(f"Turning on improve contrast for {camera_name}")
motion_settings.improve_contrast = True # type: ignore[union-attr]
elif payload == "OFF":
if motion_settings.improve_contrast:
logger.info(f"Turning off improve contrast for {camera_name}")
motion_settings.improve_contrast = False # type: ignore[union-attr]
self.config_updater.publish(f"config/motion/{camera_name}", motion_settings)
self.publish(f"{camera_name}/improve_contrast/state", payload, retain=True)
def _on_ptz_autotracker_command(self, camera_name: str, payload: str) -> None:
"""Callback for ptz_autotracker topic."""
ptz_autotracker_settings = self.config.cameras[camera_name].onvif.autotracking
if payload == "ON":
if not self.config.cameras[
camera_name
].onvif.autotracking.enabled_in_config:
logger.error(
"Autotracking must be enabled in the config to be turned on via MQTT."
)
return
if not self.ptz_metrics[camera_name]["ptz_autotracker_enabled"].value:
logger.info(f"Turning on ptz autotracker for {camera_name}")
self.ptz_metrics[camera_name]["ptz_autotracker_enabled"].value = True
self.ptz_metrics[camera_name]["ptz_start_time"].value = 0
ptz_autotracker_settings.enabled = True
elif payload == "OFF":
if self.ptz_metrics[camera_name]["ptz_autotracker_enabled"].value:
logger.info(f"Turning off ptz autotracker for {camera_name}")
self.ptz_metrics[camera_name]["ptz_autotracker_enabled"].value = False
self.ptz_metrics[camera_name]["ptz_start_time"].value = 0
ptz_autotracker_settings.enabled = False
self.publish(f"{camera_name}/ptz_autotracker/state", payload, retain=True)
def _on_motion_contour_area_command(self, camera_name: str, payload: int) -> None:
"""Callback for motion contour topic."""
try:
payload = int(payload)
except ValueError:
f"Received unsupported value for motion contour area: {payload}"
return
motion_settings = self.config.cameras[camera_name].motion
logger.info(f"Setting motion contour area for {camera_name}: {payload}")
motion_settings.contour_area = payload # type: ignore[union-attr]
self.config_updater.publish(f"config/motion/{camera_name}", motion_settings)
self.publish(f"{camera_name}/motion_contour_area/state", payload, retain=True)
def _on_motion_threshold_command(self, camera_name: str, payload: int) -> None:
"""Callback for motion threshold topic."""
try:
payload = int(payload)
except ValueError:
f"Received unsupported value for motion threshold: {payload}"
return
motion_settings = self.config.cameras[camera_name].motion
logger.info(f"Setting motion threshold for {camera_name}: {payload}")
motion_settings.threshold = payload # type: ignore[union-attr]
self.config_updater.publish(f"config/motion/{camera_name}", motion_settings)
self.publish(f"{camera_name}/motion_threshold/state", payload, retain=True)
def _on_audio_command(self, camera_name: str, payload: str) -> None:
"""Callback for audio topic."""
audio_settings = self.config.cameras[camera_name].audio
if payload == "ON":
if not self.config.cameras[camera_name].audio.enabled_in_config:
logger.error(
"Audio detection must be enabled in the config to be turned on via MQTT."
)
return
if not audio_settings.enabled:
logger.info(f"Turning on audio detection for {camera_name}")
audio_settings.enabled = True
elif payload == "OFF":
if audio_settings.enabled:
logger.info(f"Turning off audio detection for {camera_name}")
audio_settings.enabled = False
self.config_updater.publish(f"config/audio/{camera_name}", audio_settings)
self.publish(f"{camera_name}/audio/state", payload, retain=True)
def _on_recordings_command(self, camera_name: str, payload: str) -> None:
"""Callback for recordings topic."""
record_settings = self.config.cameras[camera_name].record
if payload == "ON":
if not self.config.cameras[camera_name].record.enabled_in_config:
logger.error(
"Recordings must be enabled in the config to be turned on via MQTT."
)
return
if not record_settings.enabled:
logger.info(f"Turning on recordings for {camera_name}")
record_settings.enabled = True
elif payload == "OFF":
if record_settings.enabled:
logger.info(f"Turning off recordings for {camera_name}")
record_settings.enabled = False
self.config_updater.publish(f"config/record/{camera_name}", record_settings)
self.publish(f"{camera_name}/recordings/state", payload, retain=True)
def _on_snapshots_command(self, camera_name: str, payload: str) -> None:
"""Callback for snapshots topic."""
snapshots_settings = self.config.cameras[camera_name].snapshots
if payload == "ON":
if not snapshots_settings.enabled:
logger.info(f"Turning on snapshots for {camera_name}")
snapshots_settings.enabled = True
elif payload == "OFF":
if snapshots_settings.enabled:
logger.info(f"Turning off snapshots for {camera_name}")
snapshots_settings.enabled = False
self.publish(f"{camera_name}/snapshots/state", payload, retain=True)
def _on_ptz_command(self, camera_name: str, payload: str) -> None:
"""Callback for ptz topic."""
try:
if "preset" in payload.lower():
command = OnvifCommandEnum.preset
param = payload.lower()[payload.index("_") + 1 :]
elif "move_relative" in payload.lower():
command = OnvifCommandEnum.move_relative
param = payload.lower()[payload.index("_") + 1 :]
else:
command = OnvifCommandEnum[payload.lower()]
param = ""
self.onvif.handle_command(camera_name, command, param)
logger.info(f"Setting ptz command to {command} for {camera_name}")
except KeyError as k:
logger.error(f"Invalid PTZ command {payload}: {k}")
def _on_birdseye_command(self, camera_name: str, payload: str) -> None:
"""Callback for birdseye topic."""
birdseye_settings = self.config.cameras[camera_name].birdseye
if payload == "ON":
if not birdseye_settings.enabled:
logger.info(f"Turning on birdseye for {camera_name}")
birdseye_settings.enabled = True
elif payload == "OFF":
if birdseye_settings.enabled:
logger.info(f"Turning off birdseye for {camera_name}")
birdseye_settings.enabled = False
self.config_updater.publish(f"config/birdseye/{camera_name}", birdseye_settings)
self.publish(f"{camera_name}/birdseye/state", payload, retain=True)
def _on_birdseye_mode_command(self, camera_name: str, payload: str) -> None:
"""Callback for birdseye mode topic."""
if payload not in ["CONTINUOUS", "MOTION", "OBJECTS"]:
logger.info(f"Invalid birdseye_mode command: {payload}")
return
birdseye_settings = self.config.cameras[camera_name].birdseye
if not birdseye_settings.enabled:
logger.info(f"Birdseye mode not enabled for {camera_name}")
return
birdseye_settings.mode = BirdseyeModeEnum(payload.lower())
logger.info(
f"Setting birdseye mode for {camera_name} to {birdseye_settings.mode}"
)
self.config_updater.publish(f"config/birdseye/{camera_name}", birdseye_settings)
self.publish(f"{camera_name}/birdseye_mode/state", payload, retain=True)