def get(self): keyname = self.request.get('event') if keyname is None: self.error(500) self.response.out.write("missing event") return event = CameraEvent.get(db.Key(keyname)) if event is None or event.deleted == True: self.error(404) self.response.out.write("unknown event") return if not event.viewed: event.viewed = True event.put() q2 = CameraFrame.all() #q2.filter("event_id =", event.key()).order("image_time") q2.filter("camera_id =", event.camera_id).filter("image_time >=", event.event_start).filter("image_time <=", event.event_end).order("image_time") template_values = { 'user': users.get_current_user(), 'logout_url': users.create_logout_url('/'), 'event': event, 'framelist': q2.fetch(100), 'timenow': datetime.utcnow(), } path = os.path.join(os.path.dirname(__file__), 'inc/imgseq.html') self.response.out.write(template.render(path, template_values))
def post(self): keyname = self.request.get('event') if keyname is not None: event = CameraEvent.get(db.Key(keyname)) event.deleted = True event.put() self.response.out.write("deleted")
def pollCamera(self, cam): # update the last time we attempted to poll this camera. # do this first in case we hit an exception while attempting to poll. memcache.set("camera{%s}.lastpoll_time" % cam.key(), datetime.now()) # capture an image from the remote camera. response = self.captureImage(cam) capture_time = datetime.now() if response is None: return False # store the full frame in memcache. memcache.set("camera{%s}.lastimg_orig" % cam.key(), response.content) memcache.set("camera{%s}.lastimg_time" % cam.key(), capture_time) # decide whether there is motion found. (motion_rating, motion_found) = self.detectMotion(cam, response.content) # add to an existing event if needed eventkey = memcache.get("camera{%s}.eventkey" % cam.key()) if eventkey == "trigger": motion_found = True eventkey = None if eventkey is not None: # # An existing event was found, so just add this frame to it. # event = CameraEvent.get(db.Key(eventkey)) # store frame in the database frame = CameraFrame(camera_id = cam.key(), event_id = event.key(), full_size_image = response.content, image_time = capture_time, alarmed = motion_found, motion_rating = motion_rating) frame.put() # update the event in the database if motion_rating > event.max_motion_rating: event.max_motion_rating = motion_rating event.total_frames += 1 event.total_motion_rating += motion_rating event.avg_motion_rating = event.total_motion_rating / event.total_frames event.event_end = capture_time if motion_found: event.alarm_frames += 1 event.last_motion_time = capture_time event.put() # stop the event, if it's time td = (capture_time - event.last_motion_time) total_seconds = (td.microseconds + (td.seconds + td.days * 24 * 3600) * 10**6) / 10**6 if (not motion_found) and (total_seconds > cam.num_secs_after): memcache.delete("camera{%s}.eventkey" % cam.key()) return False return True elif motion_found: # # No existing event found, so start a new event. # event = CameraEvent(total_frames = 1, alarm_frames = 1, event_start = capture_time, event_end = capture_time, max_motion_rating = motion_rating, total_motion_rating = motion_rating, avg_motion_rating = motion_rating, last_motion_time = capture_time, camera_id = cam.key(), viewed = False, archived = False, deleted = False) event.put() # store frame in the database frame = CameraFrame(camera_id = cam.key(), event_id = event.key(), full_size_image = response.content, image_time = capture_time, alarmed = motion_found, motion_rating = motion_rating) frame.put() # keep the event open. memcache.set("camera{%s}.eventkey" % cam.key(), str(event.key())) return True else: # No motion found and not currently in an event. return False