def start_cam(self,stream):
    try:
      self.cam = ICHCCam(self,stream,False)
      self._w("stream",None,stream)
      for room in self.cam_rooms:
        self.cam_up(self.rooms[room],None,None)
      #self.out_cam = ICHCCam(self,stream,True)
    except Exception as e:
      print type(e)
      print e
      print e.args
      print traceback.format_exec()