lib/python/Components/ServiceScan.py

   1 from enigma import eComponentScan, eDVBFrontendParametersSatellite, eDVBFrontendParametersCable, eDVBFrontendParametersTerrestrial
   2
   3 class ServiceScan:
   4
   5         Idle = 1
   6         Running = 2
   7         Done = 3
   8         Error = 4
   9
  10         Errors = {
  11                 0: "error starting scanning",
  12                 1: "error while scanning",
  13                 2: "no resource manager",
  14                 3: "no channel list"
  15                 }
  16
  17         def scanStatusChanged(self):
  18                 if self.state == self.Running:
  19                         self.progressbar.setValue(self.scan.getProgress())
  20                         if self.scan.isDone():
  21                                 errcode = self.scan.getError()
  22
  23                                 if errcode == 0:
  24                                         self.state = self.Done
  25                                 else:
  26                                         self.state = self.Error
  27                                         self.errorcode = errcode
  28                         else:
  29                                 self.text.setText("scan in progress - %d %% done!\n%d services found!" % (self.scan.getProgress(), self.scan.getNumServices()))
  30
  31                 if self.state == self.Done:
  32                         self.text.setText("scan done!")
  33
  34                 if self.state == self.Error:
  35                         self.text.setText("ERROR - failed to scan (%s)!" % (self.Errors[self.errorcode]) )
  36
  37         def __init__(self, progressbar, text, transponders, flags):
  38                 self.progressbar = progressbar
  39                 self.text = text
  40                 self.scan = eComponentScan()
  41                 self.state = self.Idle
  42                 self.flags = flags
  43                 self.scanStatusChanged()
  44
  45 #               if 1:
  46 #                       parm = eDVBFrontendParametersSatellite()
  47 #
  48 #                       parm.frequency = 11817000
  49 #                       parm.symbol_rate = 27500000
  50 #                       parm.polarisation = 1 # eDVBFrontendParametersSatellite.Polarisation.Vertical
  51 #                       parm.fec = 3 # eDVBFrontendParametersSatellite.FEC.f3_4;
  52 #                       parm.inversion = 1 #eDVBFrontendParametersSatellite.Inversion.Off;
  53 #                       parm.orbital_position = 192
  54 #                       self.scan.addInitial(parm)
  55 #               else:
  56 #                               # until we have a terrestrial.xml:
  57 #                       for x in [490000000, 530000000, 546000000, 570000000, 626000000]:
  58 #                               parm = eDVBFrontendParametersTerrestrial()
  59 #                               parm.frequency = x
  60 #                               parm.inversion = 2  # eDVBFrontendParametersTerrestrial.Inversion.Unknown;
  61 #                               parm.bandwidth = 0  #eDVBFrontendParametersTerrestrial.Bandwidth.Bw8MHz;
  62 #                               parm.code_rate_HP = parm.code_rate_LP = 6 #eDVBFrontendParametersTerrestrial.FEC.fAuto;
  63 #                               parm.modulation = 1 #eDVBFrontendParametersTerrestrial.Modulation.QAM16;
  64 #                               parm.transmission_mode = 1 # eDVBFrontendParametersTerrestrial.TransmissionMode.TM8k;
  65 #                               parm.guard_interval = 0 # eDVBFrontendParametersTerrestrial.GuardInterval.GI_1_32;
  66 #                               parm.hierarchy = 0 #eDVBFrontendParametersTerrestrial.Hierarchy.HNone;
  67 #                               self.scan.addInitial(parm)
  68
  69                 for x in transponders:
  70                         self.scan.addInitial(x)
  71
  72                 #self.scan.addInitial(parm)
  73
  74         def execBegin(self):
  75                 self.scan.statusChanged.get().append(self.scanStatusChanged)
  76                 self.state = self.Running
  77                 err = self.scan.start(self.flags)
  78                 if err:
  79                         self.state = self.Error
  80                         self.errorcode = 0
  81
  82                 self.scanStatusChanged()
  83
  84         def execEnd(self):
  85                 self.scan.statusChanged.get().remove(self.scanStatusChanged)
  86                 if not self.isDone():
  87                         print "*** warning *** scan was not finished!"
  88
  89         def isDone(self):
  90                 print "state is %d " % (self.state)
  91                 return self.state == self.Done or self.state == self.Error
  92