lib/python/Components/Sources/FrontendStatus.py

   1 from Source import Source
   2 from enigma import eTimer, iFrontendInformation
   3
   4 class FrontendStatus(Source):
   5         def __init__(self, service_source = None, frontend_source = None):
   6                 Source.__init__(self)
   7                 self.service_source = service_source
   8                 self.frontend_source = frontend_source
   9                 self.invalidate()
  10
  11                 self.poll_timer = eTimer()
  12                 self.poll_timer.timeout.get().append(self.updateFrontendStatus)
  13                 self.poll_timer.start(1000)
  14
  15         def invalidate(self):
  16                 self.snr = self.agc = self.ber = self.lock = None
  17
  18         def updateFrontendStatus(self):
  19                 feinfo = self.getFrontendInfo()
  20                 if feinfo is None:
  21                         self.invalidate()
  22                 else:
  23                         (self.snr, self.agc, self.ber, self.lock) = \
  24                                 [feinfo.getFrontendInfo(x) \
  25                                         for x in [iFrontendInformation.signalPower,
  26                                                 iFrontendInformation.signalQuality,
  27                                                 iFrontendInformation.bitErrorRate,
  28                                                 iFrontendInformation.lockState] ]
  29
  30                 self.changed()
  31
  32         def getFrontendInfo(self):
  33                 if self.frontend_source:
  34                         return self.frontend_source()
  35                 elif self.service_source:
  36                         service = self.service_source()
  37                         return service and service.frontendInfo()
  38                 else:
  39                         return None