core/homeassistant/components/camera/amcrest.py

134 lines
4.3 KiB
Python

"""
This component provides basic support for Amcrest IP cameras.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/camera.amcrest/
"""
import asyncio
import logging
import aiohttp
import voluptuous as vol
import homeassistant.loader as loader
from homeassistant.components.camera import (Camera, PLATFORM_SCHEMA)
from homeassistant.const import (
CONF_HOST, CONF_NAME, CONF_USERNAME, CONF_PASSWORD, CONF_PORT)
from homeassistant.helpers import config_validation as cv
from homeassistant.helpers.aiohttp_client import (
async_get_clientsession, async_aiohttp_proxy_stream)
REQUIREMENTS = ['amcrest==1.1.4']
_LOGGER = logging.getLogger(__name__)
CONF_RESOLUTION = 'resolution'
CONF_STREAM_SOURCE = 'stream_source'
DEFAULT_NAME = 'Amcrest Camera'
DEFAULT_PORT = 80
DEFAULT_RESOLUTION = 'high'
DEFAULT_STREAM_SOURCE = 'mjpeg'
NOTIFICATION_ID = 'amcrest_notification'
NOTIFICATION_TITLE = 'Amcrest Camera Setup'
RESOLUTION_LIST = {
'high': 0,
'low': 1,
}
STREAM_SOURCE_LIST = {
'mjpeg': 0,
'snapshot': 1
}
CONTENT_TYPE_HEADER = 'Content-Type'
TIMEOUT = 5
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_HOST): cv.string,
vol.Required(CONF_USERNAME): cv.string,
vol.Required(CONF_PASSWORD): cv.string,
vol.Optional(CONF_RESOLUTION, default=DEFAULT_RESOLUTION):
vol.All(vol.In(RESOLUTION_LIST)),
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
vol.Optional(CONF_STREAM_SOURCE, default=DEFAULT_STREAM_SOURCE):
vol.All(vol.In(STREAM_SOURCE_LIST)),
})
def setup_platform(hass, config, add_devices, discovery_info=None):
"""Set up an Amcrest IP Camera."""
from amcrest import AmcrestCamera
camera = AmcrestCamera(
config.get(CONF_HOST), config.get(CONF_PORT),
config.get(CONF_USERNAME), config.get(CONF_PASSWORD)).camera
persistent_notification = loader.get_component('persistent_notification')
try:
camera.current_time
# pylint: disable=broad-except
except Exception as ex:
_LOGGER.error("Unable to connect to Amcrest camera: %s", str(ex))
persistent_notification.create(
hass, 'Error: {}<br />'
'You will need to restart hass after fixing.'
''.format(ex),
title=NOTIFICATION_TITLE,
notification_id=NOTIFICATION_ID)
return False
add_devices([AmcrestCam(hass, config, camera)])
return True
class AmcrestCam(Camera):
"""An implementation of an Amcrest IP camera."""
def __init__(self, hass, device_info, camera):
"""Initialize an Amcrest camera."""
super(AmcrestCam, self).__init__()
self._camera = camera
self._base_url = self._camera.get_base_url()
self._hass = hass
self._name = device_info.get(CONF_NAME)
self._resolution = RESOLUTION_LIST[device_info.get(CONF_RESOLUTION)]
self._stream_source = STREAM_SOURCE_LIST[
device_info.get(CONF_STREAM_SOURCE)
]
self._token = self._auth = aiohttp.BasicAuth(
device_info.get(CONF_USERNAME),
password=device_info.get(CONF_PASSWORD)
)
def camera_image(self):
"""Return a still image reponse from the camera."""
# Send the request to snap a picture and return raw jpg data
response = self._camera.snapshot(channel=self._resolution)
return response.data
@asyncio.coroutine
def handle_async_mjpeg_stream(self, request):
"""Return an MJPEG stream."""
# The snapshot implementation is handled by the parent class
if self._stream_source == STREAM_SOURCE_LIST['snapshot']:
yield from super().handle_async_mjpeg_stream(request)
return
# Otherwise, stream an MJPEG image stream directly from the camera
websession = async_get_clientsession(self.hass)
streaming_url = '{0}mjpg/video.cgi?channel=0&subtype={1}'.format(
self._base_url, self._resolution)
stream_coro = websession.get(
streaming_url, auth=self._token, timeout=TIMEOUT)
yield from async_aiohttp_proxy_stream(self.hass, request, stream_coro)
@property
def name(self):
"""Return the name of this camera."""
return self._name