code.vuplus.com Git - vuplus_dvbapp/blob - lib/python/Components/Converter/ServiceInfo.py

   1 from Components.Converter.Converter import Converter
   2 from enigma import iServiceInformation, iPlayableService
   3 from Components.Element import cached
   4
   5 class ServiceInfo(Converter, object):
   6         HAS_TELETEXT = 0
   7         IS_MULTICHANNEL = 1
   8         IS_CRYPTED = 2
   9         IS_WIDESCREEN = 3
  10         SUBSERVICES_AVAILABLE = 4
  11         XRES = 5
  12         YRES = 6
  13
  14         def __init__(self, type):
  15                 Converter.__init__(self, type)
  16                 self.type, self.interesting_events = {
  17                                 "HasTelext": (self.HAS_TELETEXT, (iPlayableService.evUpdatedInfo,)),
  18                                 "IsMultichannel": (self.IS_MULTICHANNEL, (iPlayableService.evUpdatedInfo,)),
  19                                 "IsCrypted": (self.IS_CRYPTED, (iPlayableService.evUpdatedInfo,)),
  20                                 "IsWidescreen": (self.IS_WIDESCREEN, (iPlayableService.evVideoSizeChanged,)),
  21                                 "SubservicesAvailable": (self.SUBSERVICES_AVAILABLE, (iPlayableService.evUpdatedEventInfo,)),
  22                                 "VideoWidth": (self.XRES, (iPlayableService.evVideoSizeChanged,)),
  23                                 "VideoHeight": (self.YRES, (iPlayableService.evVideoSizeChanged,)),
  24                         }[type]
  25
  26         def getServiceInfoString(self, info, what):
  27                 v = info.getInfo(what)
  28                 if v == -1:
  29                         return "N/A"
  30                 if v == -2:
  31                         return info.getInfoString(what)
  32                 return "%d" % v
  33
  34         @cached
  35         def getBoolean(self):
  36                 service = self.source.service
  37                 info = service and service.info()
  38                 if not info:
  39                         return False
  40
  41                 if self.type == self.HAS_TELETEXT:
  42                         tpid = info.getInfo(iServiceInformation.sTXTPID)
  43                         return tpid != -1
  44                 elif self.type == self.IS_MULTICHANNEL:
  45                         # FIXME. but currently iAudioTrackInfo doesn't provide more information.
  46                         audio = service.audioTracks()
  47                         if audio:
  48                                 n = audio.getNumberOfTracks()
  49                                 idx = 0
  50                                 while idx < n:
  51                                         i = audio.getTrackInfo(idx)
  52                                         description = i.getDescription();
  53                                         if "AC3" in description or "DTS" in description:
  54                                                 return True
  55                                         idx += 1
  56                         return False
  57                 elif self.type == self.IS_CRYPTED:
  58                         return info.getInfo(iServiceInformation.sIsCrypted) == 1
  59                 elif self.type == self.IS_WIDESCREEN:
  60                         return info.getInfo(iServiceInformation.sAspect) in (3, 4, 7, 8, 0xB, 0xC, 0xF, 0x10)
  61                 elif self.type == self.SUBSERVICES_AVAILABLE:
  62                         subservices = service.subServices()
  63                         return subservices and subservices.getNumberOfSubservices() > 0
  64
  65         boolean = property(getBoolean)
  66
  67         @cached
  68         def getText(self):
  69                 service = self.source.service
  70                 info = service and service.info()
  71                 if not info:
  72                         return ""
  73
  74                 if self.type == self.XRES:
  75                         return self.getServiceInfoString(info, iServiceInformation.sVideoWidth)
  76                 if self.type == self.YRES:
  77                         return self.getServiceInfoString(info, iServiceInformation.sVideoHeight)
  78                 return ""
  79
  80         text = property(getText)
  81
  82         @cached
  83         def getValue(self):
  84                 service = self.source.service
  85                 info = service and service.info()
  86                 if not info:
  87                         return -1
  88
  89                 if self.type == self.XRES:
  90                         return info.getInfo(iServiceInformation.sVideoWidth)
  91                 if self.type == self.YRES:
  92                         return info.getInfo(iServiceInformation.sVideoHeight)
  93
  94                 return -1
  95
  96         value = property(getValue)
  97
  98         def changed(self, what):
  99                 if what[0] != self.CHANGED_SPECIFIC or what[1] in self.interesting_events:
 100                         Converter.changed(self, what)