lib/python/Components/ServiceScan.py

   1 from enigma import eComponentScan, iDVBFrontend
   2 from Components.NimManager import nimmanager as nimmgr
   3
   4 class ServiceScan:
   5
   6         Idle = 1
   7         Running = 2
   8         Done = 3
   9         Error = 4
  10
  11         Errors = {
  12                 0: "error starting scanning",
  13                 1: "error while scanning",
  14                 2: "no resource manager",
  15                 3: "no channel list"
  16                 }
  17
  18         def scanStatusChanged(self):
  19                 if self.state == self.Running:
  20                         self.progressbar.setValue(self.scan.getProgress())
  21                         self.lcd_summary.updateProgress(self.scan.getProgress())
  22                         if self.scan.isDone():
  23                                 errcode = self.scan.getError()
  24
  25                                 if errcode == 0:
  26                                         self.state = self.Done
  27                                 else:
  28                                         self.state = self.Error
  29                                         self.errorcode = errcode
  30                                 self.network.setText("")
  31                                 self.transponder.setText("")
  32                         else:
  33                                 self.text.setText(_("scan in progress - %d%% done!") % self.scan.getProgress() + ' ' + _("%d services found!") % (self.foundServices + self.scan.getNumServices()))
  34                                 transponder = self.scan.getCurrentTransponder()
  35                                 network = ""
  36                                 tp_text = ""
  37                                 if transponder:
  38                                         tp_type = transponder.getSystem()
  39                                         if tp_type == iDVBFrontend.feSatellite:
  40                                                 network = _("Satellite")
  41                                                 tp = transponder.getDVBS()
  42                                                 orb_pos = tp.orbital_position
  43                                                 try:
  44                                                         sat_name = str(nimmgr.getSatDescription(orb_pos))
  45                                                 except KeyError:
  46                                                         sat_name = ""
  47                                                 if orb_pos > 1800: # west
  48                                                         orb_pos = 3600 - orb_pos
  49                                                         h = _("W")
  50                                                 else:
  51                                                         h = _("E")
  52                                                 if sat_name.find("%d.%d" % (orb_pos/10, orb_pos%10)) != -1:
  53                                                         network = sat_name
  54                                                 else:
  55                                                         network = ("%s %d.%d %s") % (sat_name, orb_pos / 10, orb_pos % 10, h)
  56                                                 tp_text = ("%s %s %d%c / %d / %s") %( { tp.System_DVB_S : "DVB-S",
  57                                                         tp.System_DVB_S2 : "DVB-S2" }.get(tp.system, tp.System_DVB_S),
  58                                                         { tp.Modulation_Auto : "Auto", tp.Modulation_QPSK : "QPSK",
  59                                                                 tp.Modulation_8PSK : "8PSK", tp.Modulation_QAM16 : "QAM16" }.get(tp.modulation, tp.Modulation_QPSK),
  60                                                         tp.frequency/1000,
  61                                                         { tp.Polarisation_Horizontal : 'H', tp.Polarisation_Vertical : 'V', tp.Polarisation_CircularLeft : 'L',
  62                                                                 tp.Polarisation_CircularRight : 'R' }.get(tp.polarisation, tp.Polarisation_Horizontal),
  63                                                         tp.symbol_rate/1000,
  64                                                         { tp.FEC_Auto : "AUTO", tp.FEC_1_2 : "1/2", tp.FEC_2_3 : "2/3",
  65                                                                 tp.FEC_3_4 : "3/4", tp.FEC_5_6 : "5/6", tp.FEC_7_8 : "7/8",
  66                                                                 tp.FEC_8_9 : "8/9", tp.FEC_3_5 : "3/5", tp.FEC_4_5 : "4/5",
  67                                                                 tp.FEC_9_10 : "9/10", tp.FEC_None : "NONE" }.get(tp.fec, tp.FEC_Auto))
  68                                         elif tp_type == iDVBFrontend.feCable:
  69                                                 network = _("Cable")
  70                                                 tp = transponder.getDVBC()
  71                                                 tp_text = ("DVB-C %s %d / %d / %s") %( { tp.Modulation_Auto : "AUTO",
  72                                                         tp.Modulation_QAM16 : "QAM16", tp.Modulation_QAM32 : "QAM32",
  73                                                         tp.Modulation_QAM64 : "QAM64", tp.Modulation_QAM128 : "QAM128",
  74                                                         tp.Modulation_QAM256 : "QAM256" }.get(tp.modulation, tp.Modulation_Auto),
  75                                                         tp.frequency,
  76                                                         tp.symbol_rate/1000,
  77                                                         { tp.FEC_Auto : "AUTO", tp.FEC_1_2 : "1/2", tp.FEC_2_3 : "2/3",
  78                                                                 tp.FEC_3_4 : "3/4", tp.FEC_5_6 : "5/6", tp.FEC_7_8 : "7/8",
  79                                                                 tp.FEC_8_9 : "8/9", tp.FEC_None : "NONE" }.get(tp.fec_inner, tp.FEC_Auto))
  80                                         elif tp_type == iDVBFrontend.feTerrestrial:
  81                                                 network = _("Terrestrial")
  82                                                 tp = transponder.getDVBT()
  83                                                 tp_text = ("DVB-T %s %d %s") %( { tp.Modulation_QPSK : "QPSK",
  84                                                         tp.Modulation_QAM16 : "QAM16", tp.Modulation_QAM64 : "QAM64",
  85                                                         tp.Modulation_Auto : "AUTO" }.get(tp.modulation, tp.Modulation_Auto),
  86                                                         tp.frequency,
  87                                                         { tp.Bandwidth_8MHz : "Bw 8MHz", tp.Bandwidth_7MHz : "Bw 7MHz", tp.Bandwidth_6MHz : "Bw 6MHz",
  88                                                                 tp.Bandwidth_Auto : "Bw Auto" }.get(tp.bandwidth, tp.Bandwidth_Auto))
  89                                         else:
  90                                                 print "unknown transponder type in scanStatusChanged"
  91                                 self.network.setText(network)
  92                                 self.transponder.setText(tp_text)
  93
  94                 if self.state == self.Done:
  95                         if self.scan.getNumServices() == 0:
  96                                 self.text.setText(_("scan done!") + ' ' + _("%d services found!") % 0 )
  97                         else:
  98                                 self.text.setText(_("scan done!") + ' ' + _("%d services found!") % (self.foundServices + self.scan.getNumServices()))
  99
 100                 if self.state == self.Error:
 101                         self.text.setText(_("ERROR - failed to scan (%s)!") % (self.Errors[self.errorcode]) )
 102
 103                 if self.state == self.Done or self.state == self.Error:
 104                         if self.run != len(self.scanList) - 1:
 105                                 self.foundServices += self.scan.getNumServices()
 106                                 self.execEnd()
 107                                 self.run += 1
 108                                 self.execBegin()
 109
 110         def __init__(self, progressbar, text, servicelist, passNumber, scanList, network, transponder, frontendInfo, lcd_summary):
 111                 self.foundServices = 0
 112                 self.progressbar = progressbar
 113                 self.text = text
 114                 self.servicelist = servicelist
 115                 self.passNumber = passNumber
 116                 self.scanList = scanList
 117                 self.frontendInfo = frontendInfo
 118                 self.transponder = transponder
 119                 self.network = network
 120                 self.run = 0
 121                 self.lcd_summary = lcd_summary
 122
 123         def doRun(self):
 124                 self.scan = eComponentScan()
 125                 self.frontendInfo.frontend_source = lambda : self.scan.getFrontend()
 126                 self.feid = self.scanList[self.run]["feid"]
 127                 self.flags = self.scanList[self.run]["flags"]
 128                 self.state = self.Idle
 129                 self.scanStatusChanged()
 130
 131                 for x in self.scanList[self.run]["transponders"]:
 132                         self.scan.addInitial(x)
 133
 134         def updatePass(self):
 135                 size = len(self.scanList)
 136                 if size > 1:
 137                         self.passNumber.setText(_("pass") + " " + str(self.run + 1) + "/" + str(size) + " (" + _("Tuner") + " " + str(self.scanList[self.run]["feid"]) + ")")
 138
 139         def execBegin(self):
 140                 self.doRun()
 141                 self.updatePass()
 142                 self.scan.statusChanged.get().append(self.scanStatusChanged)
 143                 self.scan.newService.get().append(self.newService)
 144                 self.servicelist.clear()
 145                 self.state = self.Running
 146                 err = self.scan.start(self.feid, self.flags)
 147                 self.frontendInfo.updateFrontendData()
 148                 if err:
 149                         self.state = self.Error
 150                         self.errorcode = 0
 151                 self.scanStatusChanged()
 152
 153         def execEnd(self):
 154                 self.scan.statusChanged.get().remove(self.scanStatusChanged)
 155                 self.scan.newService.get().remove(self.newService)
 156                 if not self.isDone():
 157                         print "*** warning *** scan was not finished!"
 158
 159                 del self.scan
 160
 161         def isDone(self):
 162                 return self.state == self.Done or self.state == self.Error
 163
 164         def newService(self):
 165                 newServiceName = self.scan.getLastServiceName()
 166                 self.servicelist.addItem(newServiceName)
 167                 self.lcd_summary.updateService(self.scan.getLastServiceName())
 168
 169         def destroy(self):
 170                 pass