blakeblackshear.frigate/frigate/comms/dispatcher.py
Josh Hawkins 88fc0fac8f
Basic PTZ object autotracking functionality (#6913)
* Basic functionality

* Threaded motion estimator

* Revert "Threaded motion estimator"

This reverts commit 3171801607.

* Don't detect motion when ptz is moving

* fix motion logic

* fix mypy error

* Add threaded queue for movement for slower ptzs

* Move queues per camera

* Move autotracker start to app.py

* iou value for tracked object

* mqtt callback

* tracked object should be initially motionless

* only draw thicker box if autotracking is enabled

* Init if enabled when initially disabled in config

* Fix init

* Thread names

* Always use motion estimator

* docs

* clarify fov support

* remove size ratio

* use mp event instead of value for ptz status

* update autotrack at half fps

* fix merge conflict

* fix event type for mypy

* clean up

* Clean up

* remove unused code

* merge conflict fix

* docs: update link to object_detectors page

* Update docs/docs/configuration/autotracking.md

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>

* clarify wording

* pass actual instances directly

* default return preset

* fix type

* Error message when onvif init fails

* disable autotracking if onvif init fails

* disable autotracking if onvif init fails

* ptz module

* verify required_zones in config

* update util after dev merge

---------

Co-authored-by: Nicolas Mowen <nickmowen213@gmail.com>
2023-07-08 07:04:47 -05:00

285 lines
12 KiB
Python

"""Handle communication between Frigate and other applications."""
import logging
from abc import ABC, abstractmethod
from typing import Any, Callable
from frigate.config import FrigateConfig
from frigate.ptz.onvif import OnvifCommandEnum, OnvifController
from frigate.types import CameraMetricsTypes, FeatureMetricsTypes
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,
onvif: OnvifController,
camera_metrics: dict[str, CameraMetricsTypes],
feature_metrics: dict[str, FeatureMetricsTypes],
communicators: list[Communicator],
) -> None:
self.config = config
self.onvif = onvif
self.camera_metrics = camera_metrics
self.feature_metrics = feature_metrics
self.comms = communicators
for comm in self.comms:
comm.subscribe(self._receive)
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,
}
def _receive(self, topic: str, payload: str) -> None:
"""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()
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
if payload == "ON":
if not self.camera_metrics[camera_name]["detection_enabled"].value:
logger.info(f"Turning on detection for {camera_name}")
self.camera_metrics[camera_name]["detection_enabled"].value = True
detect_settings.enabled = True
if not self.camera_metrics[camera_name]["motion_enabled"].value:
logger.info(
f"Turning on motion for {camera_name} due to detection being enabled."
)
self.camera_metrics[camera_name]["motion_enabled"].value = True
self.publish(f"{camera_name}/motion/state", payload, retain=True)
elif payload == "OFF":
if self.camera_metrics[camera_name]["detection_enabled"].value:
logger.info(f"Turning off detection for {camera_name}")
self.camera_metrics[camera_name]["detection_enabled"].value = False
detect_settings.enabled = False
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."""
if payload == "ON":
if not self.camera_metrics[camera_name]["motion_enabled"].value:
logger.info(f"Turning on motion for {camera_name}")
self.camera_metrics[camera_name]["motion_enabled"].value = True
elif payload == "OFF":
if self.camera_metrics[camera_name]["detection_enabled"].value:
logger.error(
"Turning off motion is not allowed when detection is enabled."
)
return
if self.camera_metrics[camera_name]["motion_enabled"].value:
logger.info(f"Turning off motion for {camera_name}")
self.camera_metrics[camera_name]["motion_enabled"].value = False
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 self.camera_metrics[camera_name]["improve_contrast_enabled"].value:
logger.info(f"Turning on improve contrast for {camera_name}")
self.camera_metrics[camera_name][
"improve_contrast_enabled"
].value = True
motion_settings.improve_contrast = True # type: ignore[union-attr]
elif payload == "OFF":
if self.camera_metrics[camera_name]["improve_contrast_enabled"].value:
logger.info(f"Turning off improve contrast for {camera_name}")
self.camera_metrics[camera_name][
"improve_contrast_enabled"
].value = False
motion_settings.improve_contrast = False # type: ignore[union-attr]
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.camera_metrics[camera_name]["ptz_autotracker_enabled"].value:
logger.info(f"Turning on ptz autotracker for {camera_name}")
self.camera_metrics[camera_name]["ptz_autotracker_enabled"].value = True
ptz_autotracker_settings.enabled = True
elif payload == "OFF":
if self.camera_metrics[camera_name]["ptz_autotracker_enabled"].value:
logger.info(f"Turning off ptz autotracker for {camera_name}")
self.camera_metrics[camera_name][
"ptz_autotracker_enabled"
].value = False
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}")
self.camera_metrics[camera_name]["motion_contour_area"].value = payload
motion_settings.contour_area = payload # type: ignore[union-attr]
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}")
self.camera_metrics[camera_name]["motion_threshold"].value = payload
motion_settings.threshold = payload # type: ignore[union-attr]
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
self.feature_metrics[camera_name]["audio_enabled"].value = True
elif payload == "OFF":
if self.feature_metrics[camera_name]["audio_enabled"].value:
logger.info(f"Turning off audio detection for {camera_name}")
audio_settings.enabled = False
self.feature_metrics[camera_name]["audio_enabled"].value = False
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
self.feature_metrics[camera_name]["record_enabled"].value = True
elif payload == "OFF":
if self.feature_metrics[camera_name]["record_enabled"].value:
logger.info(f"Turning off recordings for {camera_name}")
record_settings.enabled = False
self.feature_metrics[camera_name]["record_enabled"].value = False
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 :]
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}")