+#!/usr/bin/env python3
+
+"""Utilities for dealing with the webcams."""
+
+from abc import abstractmethod
+import datetime
+import json
+import logging
+import os
+import re
+import subprocess
+import sys
+from typing import Any, Dict, List, Optional, Set
+
+import argparse_utils
+import config
+import logging_utils
+import smart_home.device as dev
+from google_assistant import ask_google, GoogleResponse
+from decorator_utils import timeout, memoized
+
+logger = logging.getLogger(__name__)
+
+class BaseCamera(dev.Device):
+ camera_mapping = {
+ 'cabin_drivewaycam': 'cabin_driveway',
+ 'outside_backyard_camera': 'backyard',
+ 'outside_driveway_camera': 'driveway',
+ 'outside_doorbell_camera': 'doorbell',
+ 'outside_front_door_camera': 'frontdoor',
+ }
+
+ def __init__(self, name: str, mac: str, keywords: str = "") -> None:
+ super().__init__(name.strip(), mac.strip(), keywords)
+ self.camera_name = BaseCamera.camera_mapping.get(name, None)
+
+ def get_stream_url(self) -> str:
+ assert self.camera_name is not None
+ return f'http://10.0.0.56:81/mjpg/{self.camera_name}/video.mjpg?h=1024&q=99'