121 lines
3.7 KiB
Python
121 lines
3.7 KiB
Python
"""Support for Canary camera."""
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import asyncio
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from datetime import timedelta
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import logging
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from haffmpeg.camera import CameraMjpeg
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from haffmpeg.tools import IMAGE_JPEG, ImageFrame
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import voluptuous as vol
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from homeassistant.components.camera import PLATFORM_SCHEMA, Camera
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from homeassistant.components.ffmpeg import DATA_FFMPEG
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from homeassistant.helpers import config_validation as cv
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from homeassistant.helpers.aiohttp_client import async_aiohttp_proxy_stream
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from homeassistant.util import Throttle
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from . import DATA_CANARY, DEFAULT_TIMEOUT
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_LOGGER = logging.getLogger(__name__)
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CONF_FFMPEG_ARGUMENTS = "ffmpeg_arguments"
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DEFAULT_ARGUMENTS = "-pred 1"
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MIN_TIME_BETWEEN_SESSION_RENEW = timedelta(seconds=90)
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
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{vol.Optional(CONF_FFMPEG_ARGUMENTS, default=DEFAULT_ARGUMENTS): cv.string}
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)
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def setup_platform(hass, config, add_entities, discovery_info=None):
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"""Set up the Canary sensors."""
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data = hass.data[DATA_CANARY]
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devices = []
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for location in data.locations:
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for device in location.devices:
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if device.is_online:
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devices.append(
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CanaryCamera(
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hass,
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data,
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location,
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device,
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DEFAULT_TIMEOUT,
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config.get(CONF_FFMPEG_ARGUMENTS),
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)
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)
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add_entities(devices, True)
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class CanaryCamera(Camera):
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"""An implementation of a Canary security camera."""
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def __init__(self, hass, data, location, device, timeout, ffmpeg_args):
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"""Initialize a Canary security camera."""
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super().__init__()
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self._ffmpeg = hass.data[DATA_FFMPEG]
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self._ffmpeg_arguments = ffmpeg_args
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self._data = data
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self._location = location
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self._device = device
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self._timeout = timeout
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self._live_stream_session = None
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@property
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def name(self):
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"""Return the name of this device."""
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return self._device.name
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@property
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def is_recording(self):
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"""Return true if the device is recording."""
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return self._location.is_recording
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@property
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def motion_detection_enabled(self):
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"""Return the camera motion detection status."""
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return not self._location.is_recording
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async def async_camera_image(self):
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"""Return a still image response from the camera."""
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self.renew_live_stream_session()
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ffmpeg = ImageFrame(self._ffmpeg.binary, loop=self.hass.loop)
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image = await asyncio.shield(
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ffmpeg.get_image(
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self._live_stream_session.live_stream_url,
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output_format=IMAGE_JPEG,
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extra_cmd=self._ffmpeg_arguments,
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)
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)
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return image
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async def handle_async_mjpeg_stream(self, request):
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"""Generate an HTTP MJPEG stream from the camera."""
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if self._live_stream_session is None:
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return
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stream = CameraMjpeg(self._ffmpeg.binary, loop=self.hass.loop)
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await stream.open_camera(
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self._live_stream_session.live_stream_url, extra_cmd=self._ffmpeg_arguments
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)
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try:
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stream_reader = await stream.get_reader()
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return await async_aiohttp_proxy_stream(
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self.hass,
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request,
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stream_reader,
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self._ffmpeg.ffmpeg_stream_content_type,
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)
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finally:
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await stream.close()
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@Throttle(MIN_TIME_BETWEEN_SESSION_RENEW)
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def renew_live_stream_session(self):
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"""Renew live stream session."""
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self._live_stream_session = self._data.get_live_stream_session(self._device)
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