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#!/usr/bin/env python |
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# Nat Morris (c) 2017 |
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"""CCTV GIF buffer - Service.""" |
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import collections |
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import imageio |
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import logging |
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import requests |
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import threading |
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import time |
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import io |
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from cctvgifbuffer import version |
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from cctvgifbuffer.webserver import WebServer |
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from requests.auth import HTTPBasicAuth |
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LOG = logging.getLogger(__name__) |
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def camworker(name, config, queue, lock): |
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while True: |
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with lock: |
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respargs = {} |
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if "auth" in config: |
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if config["auth"] == "basic": |
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respargs["auth"] = HTTPBasicAuth(config["username"], config["password"]) |
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resp = requests.get(config["url"], **respargs) |
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if resp.status_code == 200: |
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queue.append(imageio.imread(io.BytesIO(resp.content), format='jpg')) |
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if len(queue) > 30: |
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queue.popleft() |
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time.sleep(2) |
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class Service(object): |
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cameras = None |
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def __init__(self, config): |
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LOG.info("Initializing service v%s", version()) |
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self.cameras = {} |
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LOG.info("Checking camera configs") |
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for name, cameracfg in config["cameras"].iteritems(): |
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self.validate_camera_config(name=name, camera=cameracfg) |
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self.cameras[name] = {"config": cameracfg} |
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LOG.info("%d cameras: %s", len(self.cameras), ', '.join(self.cameras.keys())) |
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# setup each camera with its own lock and thread |
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for name, camera in self.cameras.iteritems(): |
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LOG.debug("%s: %s", name, camera) |
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camera["buffer"] = collections.deque() |
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camera["lock"] = threading.Lock() |
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camera["thread"] = threading.Thread(target=camworker, args=(name, camera["config"], camera["buffer"], camera["lock"])) |
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def start(self): |
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LOG.info("Starting camera threads") |
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# start each camera |
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for name, camera in self.cameras.iteritems(): |
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camera["thread"].start() |
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ws = WebServer(service=self) |
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ws.start() |
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while True: |
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time.sleep(10) |
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def validate_camera_config(self, name, camera): |
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return |
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natm /
cctv-gif-buffer
