コード例 #1
0
ファイル: eit.c プロジェクト: stesee/open7x0.org
cEIT::cEIT(cSchedules *Schedules, int Source, u_char Tid, const u_char *Data, bool OnlyRunningStatus)
:SI::EIT(Data, false)
{
  if (!CheckCRCAndParse())
     return;

  tChannelID channelID(Source, getOriginalNetworkId(), getTransportStreamId(), getServiceId());

  cChannel *channel = Channels.GetByChannelID(channelID, true);
  if (!channel)
     return; // only collect data for known channels

  //M7X0 BEGIN AK
  eEpgMode em = EpgModes.GetModeByChannelID(&channelID)->GetMode();
  if ((em == emNone) | ((em == emNowNext) & (Tid != 0x4e) & (Tid != 0x4f)))
     return;
//M7X0 END AK

  cSchedule *pSchedule = (cSchedule *)Schedules->GetSchedule(channel, true);

  bool Empty = true;
  bool Modified = false;
  bool HasExternalData = false;
  time_t SegmentStart = 0;
  time_t SegmentEnd = 0;
  time_t now = time(NULL);

  SI::EIT::Event SiEitEvent;
  for (SI::Loop::Iterator it; eventLoop.getNext(SiEitEvent, it); ) {
      bool ExternalData = false;
      // Drop bogus events - but keep NVOD reference events, where all bits of the start time field are set to 1, resulting in a negative number.
      time_t si_stime = SiEitEvent.getStartTime();
      time_t si_dur = SiEitEvent.getDuration();
      if (si_stime == 0 || (si_stime > 0 && si_dur == 0))
         continue;
      Empty = false;
      if (((!SegmentStart) | (si_stime < SegmentStart)) & (si_stime > 0))
         SegmentStart = si_stime;
      if (si_stime + si_dur > SegmentEnd)
         SegmentEnd = si_stime + si_dur;

      cEvent *newEvent = NULL;
      cEvent *rEvent = NULL;
      cEvent *pEvent = (cEvent *)pSchedule->GetEvent(SiEitEvent.getEventId(), si_stime);
      if (!pEvent) {
         bool outdated = (si_stime > 0) &
               (si_stime + si_dur + Setup.EPGLinger * 60 + 3600 < now);
         if (OnlyRunningStatus | (em == emForeign) | outdated)
            continue;
         // If we don't have that event yet, we create a new one.
         // Otherwise we copy the information into the existing event anyway, because the data might have changed.
         pEvent = newEvent = new cEvent(SiEitEvent.getEventId());
         if (!pEvent)
            continue;
         }
      else {
         // We have found an existing event, either through its event ID or its start time.
         pEvent->SetSeen();
         // If the existing event has a zero table ID it was defined externally and shall
         // not be overwritten.
         if (pEvent->TableID() == 0x00) {
            if (pEvent->Version() == getVersionNumber())
               continue;
            HasExternalData = ExternalData = true;
            }
         // If the new event has a higher table ID, let's skip it.
         // The lower the table ID, the more "current" the information.
         else if (Tid > pEvent->TableID())
            continue;
         // If the new event comes from the same table and has the same version number
         // as the existing one, let's skip it to avoid unnecessary work.
         // Unfortunately some stations (like, e.g. "Premiere") broadcast their EPG data on several transponders (like
         // the actual Premiere transponder and the Sat.1/Pro7 transponder), but use different version numbers on
         // each of them :-( So if one DVB card is tuned to the Premiere transponder, while an other one is tuned
         // to the Sat.1/Pro7 transponder, events will keep toggling because of the bogus version numbers.
         else if (Tid == pEvent->TableID() && pEvent->Version() == getVersionNumber())
            continue;
         }
      if ((!ExternalData) & (!OnlyRunningStatus)) {
         pEvent->SetEventID(SiEitEvent.getEventId()); // unfortunately some stations use different event ids for the same event in different tables :-(
         pEvent->SetTableID(Tid);
         pEvent->SetStartTime(si_stime);
         pEvent->SetDuration(si_dur);
         }
      if (newEvent)
         pSchedule->AddEvent(newEvent);
      if (Tid == 0x4E) { // we trust only the present/following info on the actual TS
         if (SiEitEvent.getRunningStatus() >= SI::RunningStatusNotRunning)
            pSchedule->SetRunningStatus(pEvent, SiEitEvent.getRunningStatus(), channel);
         }
      if (OnlyRunningStatus)
         continue; // do this before setting the version, so that the full update can be done later
      pEvent->SetVersion(getVersionNumber());

      int LanguagePreferenceShort = -1;
      int LanguagePreferenceExt = -1;
      bool UseExtendedEventDescriptor = false;
      SI::Descriptor *d;
      SI::ExtendedEventDescriptors *ExtendedEventDescriptors = NULL;
      SI::ShortEventDescriptor *ShortEventDescriptor = NULL;
      cLinkChannels *LinkChannels = NULL;
      cComponents *Components = NULL;
      for (SI::Loop::Iterator it2; (d = SiEitEvent.eventDescriptors.getNext(it2)); ) {
          if (ExternalData && d->getDescriptorTag() != SI::ComponentDescriptorTag) {
             delete d;
             continue;
             }
          switch (d->getDescriptorTag()) {
            case SI::ExtendedEventDescriptorTag: {
                 SI::ExtendedEventDescriptor *eed = (SI::ExtendedEventDescriptor *)d;
                 if (I18nIsPreferredLanguage(Setup.EPGLanguages, eed->languageCode, LanguagePreferenceExt) || !ExtendedEventDescriptors) {
                    delete ExtendedEventDescriptors;
                    ExtendedEventDescriptors = new SI::ExtendedEventDescriptors;
                    UseExtendedEventDescriptor = true;
                    }
                 if (UseExtendedEventDescriptor) {
                    ExtendedEventDescriptors->Add(eed);
                    d = NULL; // so that it is not deleted
                    }
                 if (eed->getDescriptorNumber() == eed->getLastDescriptorNumber())
                    UseExtendedEventDescriptor = false;
                 }
                 break;
            case SI::ShortEventDescriptorTag: {
                 SI::ShortEventDescriptor *sed = (SI::ShortEventDescriptor *)d;
                 if (I18nIsPreferredLanguage(Setup.EPGLanguages, sed->languageCode, LanguagePreferenceShort) || !ShortEventDescriptor) {
                    delete ShortEventDescriptor;
                    ShortEventDescriptor = sed;
                    d = NULL; // so that it is not deleted
                    }
                 }
                 break;
            case SI::ContentDescriptorTag:
                 break;
            case SI::ParentalRatingDescriptorTag:
                 break;
            case SI::PDCDescriptorTag: {
                 SI::PDCDescriptor *pd = (SI::PDCDescriptor *)d;
                 time_t now = time(NULL);
                 struct tm tm_r;
                 struct tm t = *localtime_r(&now, &tm_r); // this initializes the time zone in 't'
                 t.tm_isdst = -1; // makes sure mktime() will determine the correct DST setting
                 int month = t.tm_mon;
                 t.tm_mon = pd->getMonth() - 1;
                 t.tm_mday = pd->getDay();
                 t.tm_hour = pd->getHour();
                 t.tm_min = pd->getMinute();
                 t.tm_sec = 0;
                 if (month == 11 && t.tm_mon == 0) // current month is dec, but event is in jan
                    t.tm_year++;
                 else if (month == 0 && t.tm_mon == 11) // current month is jan, but event is in dec
                    t.tm_year--;
                 time_t vps = mktime(&t);
                 pEvent->SetVps(vps);
                 }
                 break;
            case SI::TimeShiftedEventDescriptorTag: {
                 SI::TimeShiftedEventDescriptor *tsed = (SI::TimeShiftedEventDescriptor *)d;
                 cSchedule *rSchedule = (cSchedule *)Schedules->GetSchedule(tChannelID(Source, channel->Nid(), channel->Tid(), tsed->getReferenceServiceId()));
                 if (!rSchedule)
                    break;
                 rEvent = (cEvent *)rSchedule->GetEvent(tsed->getReferenceEventId());
                 if (!rEvent)
                    break;
                 pEvent->SetTitle(rEvent->Title());
                 pEvent->SetShortText(rEvent->ShortText());
                 pEvent->SetDescription(rEvent->Description());
                 }
                 break;
            case SI::LinkageDescriptorTag: {
                 SI::LinkageDescriptor *ld = (SI::LinkageDescriptor *)d;
                 tChannelID linkID(Source, ld->getOriginalNetworkId(), ld->getTransportStreamId(), ld->getServiceId());
                 if (ld->getLinkageType() == 0xB0) { // Premiere World
                    time_t now = time(NULL);
                    bool hit = SiEitEvent.getStartTime() <= now && now < SiEitEvent.getStartTime() + SiEitEvent.getDuration();
                    if (hit) {
                       char linkName[ld->privateData.getLength() + 1];
                       strn0cpy(linkName, (const char *)ld->privateData.getData(), sizeof(linkName));
                       cChannel *link = Channels.GetByChannelID(linkID);
                       if (link != channel) { // only link to other channels, not the same one
                          //fprintf(stderr, "Linkage %s %4d %4d %5d %5d %5d %5d  %02X  '%s'\n", hit ? "*" : "", channel->Number(), link ? link->Number() : -1, SiEitEvent.getEventId(), ld->getOriginalNetworkId(), ld->getTransportStreamId(), ld->getServiceId(), ld->getLinkageType(), linkName);//XXX
                          if (link) {
                             if (Setup.UpdateChannels == 1 || Setup.UpdateChannels >= 3)
                                link->SetName(linkName, "", "");
                             }
                          else if (Setup.UpdateChannels >= 4) {
                             link = Channels.NewChannel(channel, linkName, "", "", ld->getOriginalNetworkId(), ld->getTransportStreamId(), ld->getServiceId());
                             //XXX patFilter->Trigger();
                             }
                          if (link) {
                             if (!LinkChannels)
                                LinkChannels = new cLinkChannels;
                             LinkChannels->Add(new cLinkChannel(link));
                             }
                          }
                       else
                          channel->SetPortalName(linkName);
                       }
                    }
                 }
                 break;
            case SI::ComponentDescriptorTag: {
                 SI::ComponentDescriptor *cd = (SI::ComponentDescriptor *)d;
                 uchar Stream = cd->getStreamContent();
                 uchar Type = cd->getComponentType();
                 if (1 <= Stream && Stream <= 2 && Type != 0) {
                    if (!Components)
                       Components = new cComponents;
                    char buffer[256];
                    Components->SetComponent(Components->NumComponents(), cd->getStreamContent(), cd->getComponentType(), I18nNormalizeLanguageCode(cd->languageCode), cd->description.getText(buffer, sizeof(buffer)));
                    }
                 }
                 break;
            default: ;
            }
          delete d;
          }

      if (!rEvent) {
         if (ShortEventDescriptor) {
            char buffer[256];
            pEvent->SetTitle(ShortEventDescriptor->name.getText(buffer, sizeof(buffer)));
            pEvent->SetShortText(ShortEventDescriptor->text.getText(buffer, sizeof(buffer)));
            }
         else if (!HasExternalData) {
            pEvent->SetTitle(NULL);
            pEvent->SetShortText(NULL);
            }
         if (ExtendedEventDescriptors) {
            char buffer[ExtendedEventDescriptors->getMaximumTextLength(": ") + 1];
            pEvent->SetDescription(ExtendedEventDescriptors->getText(buffer, sizeof(buffer), ": "));
            }
         else if (!HasExternalData)
            pEvent->SetDescription(NULL);
         }
      delete ExtendedEventDescriptors;
      delete ShortEventDescriptor;

      pEvent->SetComponents(Components);

      if (!HasExternalData)
         pEvent->FixEpgBugs();
      if (LinkChannels)
         channel->SetLinkChannels(LinkChannels);
      Modified = true;
      }
  if (Empty && Tid == 0x4E && getSectionNumber() == 0)
     // ETR 211: an empty entry in section 0 of table 0x4E means there is currently no event running
     pSchedule->ClrRunningStatus(channel);
  if (Tid == 0x4E)
     pSchedule->SetPresentSeen();
  if (OnlyRunningStatus)
     return;
  if (Modified) {
     pSchedule->Sort();
     pSchedule->DropOutdated(SegmentStart, SegmentEnd, Tid, getVersionNumber());
     Schedules->SetModified(pSchedule);
     }
}
コード例 #2
0
ファイル: eit.c プロジェクト: backtrack2016/tdt
cEIT::cEIT(cSchedules *Schedules, int Source, u_char Tid, const u_char *Data, bool OnlyRunningStatus)
:SI::EIT(Data, false)
{
  if (!CheckCRCAndParse())
     return;

  tChannelID channelID(Source, getOriginalNetworkId(), getTransportStreamId(), getServiceId());
  cChannel *channel = Channels.GetByChannelID(channelID, true);
  if (!channel)
     return; // only collect data for known channels

  cSchedule *pSchedule = (cSchedule *)Schedules->GetSchedule(channel, true);

  bool Empty = true;
  bool Modified = false;
  bool HasExternalData = false;
  time_t SegmentStart = 0;
  time_t SegmentEnd = 0;
  time_t Now = time(NULL);
  struct tm tm_r;
  struct tm t = *localtime_r(&Now, &tm_r); // this initializes the time zone in 't'

  if (Now < VALID_TIME)
     return; // we need the current time for handling PDC descriptors

  SI::EIT::Event SiEitEvent;
  for (SI::Loop::Iterator it; eventLoop.getNext(SiEitEvent, it); ) {
      bool ExternalData = false;
      time_t StartTime = SiEitEvent.getStartTime();
      int Duration = SiEitEvent.getDuration();
      // Drop bogus events - but keep NVOD reference events, where all bits of the start time field are set to 1, resulting in a negative number.
      if (StartTime == 0 || StartTime > 0 && Duration == 0)
         continue;
      Empty = false;
      if (!SegmentStart)
         SegmentStart = StartTime;
      SegmentEnd = StartTime + Duration;
      cEvent *newEvent = NULL;
      cEvent *rEvent = NULL;
      cEvent *pEvent = (cEvent *)pSchedule->GetEvent(SiEitEvent.getEventId(), StartTime);
      if (!pEvent) {
         if (OnlyRunningStatus)
            continue;
         // If we don't have that event yet, we create a new one.
         // Otherwise we copy the information into the existing event anyway, because the data might have changed.
         pEvent = newEvent = new cEvent(SiEitEvent.getEventId());
         if (!pEvent)
            continue;
         }
      else {
         // We have found an existing event, either through its event ID or its start time.
         pEvent->SetSeen();
         // If the existing event has a zero table ID it was defined externally and shall
         // not be overwritten.
         uchar TableID = pEvent->TableID();
         if (TableID == 0x00) {
            if (pEvent->Version() == getVersionNumber())
               continue;
            HasExternalData = ExternalData = true;
            }
         // If the new event has a higher table ID, let's skip it.
         // The lower the table ID, the more "current" the information.
         else if (Tid > TableID)
            continue;
         // If the new event comes from the same table and has the same version number
         // as the existing one, let's skip it to avoid unnecessary work.
         // Unfortunately some stations (like, e.g. "Premiere") broadcast their EPG data on several transponders (like
         // the actual Premiere transponder and the Sat.1/Pro7 transponder), but use different version numbers on
         // each of them :-( So if one DVB card is tuned to the Premiere transponder, while an other one is tuned
         // to the Sat.1/Pro7 transponder, events will keep toggling because of the bogus version numbers.
         else if (Tid == TableID && pEvent->Version() == getVersionNumber())
            continue;
         }
      if (!ExternalData) {
         pEvent->SetEventID(SiEitEvent.getEventId()); // unfortunately some stations use different event ids for the same event in different tables :-(
         pEvent->SetTableID(Tid);
         pEvent->SetStartTime(StartTime);
         pEvent->SetDuration(Duration);
         }
      if (newEvent)
         pSchedule->AddEvent(newEvent);
      if (Tid == 0x4E) { // we trust only the present/following info on the actual TS
         if (SiEitEvent.getRunningStatus() >= SI::RunningStatusNotRunning)
            pSchedule->SetRunningStatus(pEvent, SiEitEvent.getRunningStatus(), channel);
         }
      if (OnlyRunningStatus)
         continue; // do this before setting the version, so that the full update can be done later
      pEvent->SetVersion(getVersionNumber());

      int LanguagePreferenceShort = -1;
      int LanguagePreferenceExt = -1;
      bool UseExtendedEventDescriptor = false;
      SI::Descriptor *d;
      SI::ExtendedEventDescriptors *ExtendedEventDescriptors = NULL;
      SI::ShortEventDescriptor *ShortEventDescriptor = NULL;
      cLinkChannels *LinkChannels = NULL;
      cComponents *Components = NULL;
      for (SI::Loop::Iterator it2; (d = SiEitEvent.eventDescriptors.getNext(it2)); ) {
          if (ExternalData && d->getDescriptorTag() != SI::ComponentDescriptorTag) {
             delete d;
             continue;
             }
          switch (d->getDescriptorTag()) {
            case SI::ExtendedEventDescriptorTag: {
                 SI::ExtendedEventDescriptor *eed = (SI::ExtendedEventDescriptor *)d;
                 if (I18nIsPreferredLanguage(Setup.EPGLanguages, eed->languageCode, LanguagePreferenceExt) || !ExtendedEventDescriptors) {
                    delete ExtendedEventDescriptors;
                    ExtendedEventDescriptors = new SI::ExtendedEventDescriptors;
                    UseExtendedEventDescriptor = true;
                    }
                 if (UseExtendedEventDescriptor) {
                    ExtendedEventDescriptors->Add(eed);
                    d = NULL; // so that it is not deleted
                    }
                 if (eed->getDescriptorNumber() == eed->getLastDescriptorNumber())
                    UseExtendedEventDescriptor = false;
                 }
                 break;
            case SI::ShortEventDescriptorTag: {
                 SI::ShortEventDescriptor *sed = (SI::ShortEventDescriptor *)d;
                 if (I18nIsPreferredLanguage(Setup.EPGLanguages, sed->languageCode, LanguagePreferenceShort) || !ShortEventDescriptor) {
                    delete ShortEventDescriptor;
                    ShortEventDescriptor = sed;
                    d = NULL; // so that it is not deleted
                    }
                 }
                 break;
            case SI::ContentDescriptorTag: {
                 SI::ContentDescriptor *cd = (SI::ContentDescriptor *)d;
                 SI::ContentDescriptor::Nibble Nibble;
                 int NumContents = 0;
                 uchar Contents[MAXEVCONTENTS] = { 0 };
                 for (SI::Loop::Iterator it3; cd->nibbleLoop.getNext(Nibble, it3); ) {
                     if (NumContents < MAXEVCONTENTS) {
                        Contents[NumContents] = ((Nibble.getContentNibbleLevel1() & 0xF) << 4) | (Nibble.getContentNibbleLevel2() & 0xF);
                        NumContents++;
                        }
                     }
                 pEvent->SetContents(Contents);
                 }
                 break;
            case SI::ParentalRatingDescriptorTag: {
                 int LanguagePreferenceRating = -1;
                 SI::ParentalRatingDescriptor *prd = (SI::ParentalRatingDescriptor *)d;
                 SI::ParentalRatingDescriptor::Rating Rating;
                 for (SI::Loop::Iterator it3; prd->ratingLoop.getNext(Rating, it3); ) {
                     if (I18nIsPreferredLanguage(Setup.EPGLanguages, Rating.languageCode, LanguagePreferenceRating)) {
                        int ParentalRating = (Rating.getRating() & 0xFF);
                        switch (ParentalRating) {
                          // values defined by the DVB standard (minimum age = rating + 3 years):
                          case 0x01 ... 0x0F: ParentalRating += 3; break;
                          // values defined by broadcaster CSAT (now why didn't they just use 0x07, 0x09 and 0x0D?):
                          case 0x11:          ParentalRating = 10; break;
                          case 0x12:          ParentalRating = 12; break;
                          case 0x13:          ParentalRating = 16; break;
                          default:            ParentalRating = 0;
                          }
                        pEvent->SetParentalRating(ParentalRating);
                        }
                     }
                 }
                 break;
            case SI::PDCDescriptorTag: {
                 SI::PDCDescriptor *pd = (SI::PDCDescriptor *)d;
                 t.tm_isdst = -1; // makes sure mktime() will determine the correct DST setting
                 int month = t.tm_mon;
                 t.tm_mon = pd->getMonth() - 1;
                 t.tm_mday = pd->getDay();
                 t.tm_hour = pd->getHour();
                 t.tm_min = pd->getMinute();
                 t.tm_sec = 0;
                 if (month == 11 && t.tm_mon == 0) // current month is dec, but event is in jan
                    t.tm_year++;
                 else if (month == 0 && t.tm_mon == 11) // current month is jan, but event is in dec
                    t.tm_year--;
                 time_t vps = mktime(&t);
                 pEvent->SetVps(vps);
                 }
                 break;
            case SI::TimeShiftedEventDescriptorTag: {
                 SI::TimeShiftedEventDescriptor *tsed = (SI::TimeShiftedEventDescriptor *)d;
                 cSchedule *rSchedule = (cSchedule *)Schedules->GetSchedule(tChannelID(Source, channel->Nid(), channel->Tid(), tsed->getReferenceServiceId()));
                 if (!rSchedule)
                    break;
                 rEvent = (cEvent *)rSchedule->GetEvent(tsed->getReferenceEventId());
                 if (!rEvent)
                    break;
                 pEvent->SetTitle(rEvent->Title());
                 pEvent->SetShortText(rEvent->ShortText());
                 pEvent->SetDescription(rEvent->Description());
                 }
                 break;
            case SI::LinkageDescriptorTag: {
                 SI::LinkageDescriptor *ld = (SI::LinkageDescriptor *)d;
                 tChannelID linkID(Source, ld->getOriginalNetworkId(), ld->getTransportStreamId(), ld->getServiceId());
                 if (ld->getLinkageType() == 0xB0) { // Premiere World
                    bool hit = StartTime <= Now && Now < StartTime + Duration;
                    if (hit) {
                       char linkName[ld->privateData.getLength() + 1];
                       strn0cpy(linkName, (const char *)ld->privateData.getData(), sizeof(linkName));
                       // TODO is there a standard way to determine the character set of this string?
                       cChannel *link = Channels.GetByChannelID(linkID);
                       if (link != channel) { // only link to other channels, not the same one
                          //fprintf(stderr, "Linkage %s %4d %4d %5d %5d %5d %5d  %02X  '%s'\n", hit ? "*" : "", channel->Number(), link ? link->Number() : -1, SiEitEvent.getEventId(), ld->getOriginalNetworkId(), ld->getTransportStreamId(), ld->getServiceId(), ld->getLinkageType(), linkName);//XXX
                          if (link) {
                             if (Setup.UpdateChannels == 1 || Setup.UpdateChannels >= 3)
                                link->SetName(linkName, "", "");
                             }
                          else if (Setup.UpdateChannels >= 4) {
                             cChannel *transponder = channel;
                             if (channel->Tid() != ld->getTransportStreamId())
                                transponder = Channels.GetByTransponderID(linkID);
                             link = Channels.NewChannel(transponder, linkName, "", "", ld->getOriginalNetworkId(), ld->getTransportStreamId(), ld->getServiceId());
                             //XXX patFilter->Trigger();
                             }
                          if (link) {
                             if (!LinkChannels)
                                LinkChannels = new cLinkChannels;
                             LinkChannels->Add(new cLinkChannel(link));
                             }
                          }
                       else
                          channel->SetPortalName(linkName);
                       }
                    }
                 }
                 break;
            case SI::ComponentDescriptorTag: {
                 SI::ComponentDescriptor *cd = (SI::ComponentDescriptor *)d;
                 uchar Stream = cd->getStreamContent();
                 uchar Type = cd->getComponentType();
                 if (1 <= Stream && Stream <= 4 && Type != 0) { // 1=video, 2=audio, 3=subtitles, 4=AC3
                    if (!Components)
                       Components = new cComponents;
                    char buffer[Utf8BufSize(256)];
                    Components->SetComponent(Components->NumComponents(), Stream, Type, I18nNormalizeLanguageCode(cd->languageCode), cd->description.getText(buffer, sizeof(buffer)));
                    }
                 }
                 break;
            default: ;
            }
          delete d;
          }

      if (!rEvent) {
         if (ShortEventDescriptor) {
            char buffer[Utf8BufSize(256)];
            pEvent->SetTitle(ShortEventDescriptor->name.getText(buffer, sizeof(buffer)));
            pEvent->SetShortText(ShortEventDescriptor->text.getText(buffer, sizeof(buffer)));
            }
         else if (!HasExternalData) {
            pEvent->SetTitle(NULL);
            pEvent->SetShortText(NULL);
            }
         if (ExtendedEventDescriptors) {
            char buffer[Utf8BufSize(ExtendedEventDescriptors->getMaximumTextLength(": ")) + 1];
            pEvent->SetDescription(ExtendedEventDescriptors->getText(buffer, sizeof(buffer), ": "));
            }
         else if (!HasExternalData)
            pEvent->SetDescription(NULL);
         }
      delete ExtendedEventDescriptors;
      delete ShortEventDescriptor;

      pEvent->SetComponents(Components);

      if (!HasExternalData)
         pEvent->FixEpgBugs();
      if (LinkChannels)
         channel->SetLinkChannels(LinkChannels);
      Modified = true;
      }
コード例 #3
0
ファイル: eit.c プロジェクト: suborb/reelvdr
cEIT::cEIT(cSchedules *Schedules, int Source, u_char Tid, const u_char *Data, bool OnlyRunningStatus)
:SI::EIT(Data, false)
{
  if (!CheckCRCAndParse())
     return;

  tChannelID channelID(Source, getOriginalNetworkId(), getTransportStreamId(), getServiceId());
  cChannel *channel = Channels.GetByChannelID(channelID, true);

  if (!channel)
     return; // only collect data for known channels

  // Channel marked as not to receive EPG data (noEPG patch)
  if (!Channels.isEPGAllowed(channelID))
  {
     return;
  }

  const char *charset;
  if(channelID == lastChannelID) {
     charset = lastCharset;
  } else {
    charset = ProviderCharsets.GetCharset(channel->Provider());
    lastCharset = charset;
  }

  //::printf("========  %s charset: %s ==========\n", channel->Provider(), charset);

  cSchedule *pSchedule = (cSchedule *)Schedules->GetSchedule(channel, true);

  bool Empty = true;
  bool Modified = false;
  bool HasExternalData = false;
  time_t SegmentStart = 0;
  time_t SegmentEnd = 0;
  time_t now = time(NULL);
  struct tm tm_r;
  struct tm t = *localtime_r(&now, &tm_r); // this initializes the time zone in 't'

  if (now < VALID_TIME)
      return; // we need the current time for handling PDC descriptors

  SI::EIT::Event SiEitEvent;
  for (SI::Loop::Iterator it; eventLoop.getNext(SiEitEvent, it); ) {
      bool ExternalData = false;
      // Drop bogus events - but keep NVOD reference events, where all bits of the start time field are set to 1, resulting in a negative number.
      int startTime = SiEitEvent.getStartTime();
      int duration = SiEitEvent.getDuration();
      if (startTime == 0 || (startTime > 0 && duration == 0))
         continue;
      Empty = false;
      if (!SegmentStart)
         SegmentStart = startTime;
      SegmentEnd = startTime + duration;
      cEvent *newEvent = NULL;
      cEvent *rEvent = NULL;
      cEvent *pEvent = (cEvent *)pSchedule->GetEvent(SiEitEvent.getEventId(), startTime);
      if (!pEvent) {
         if (OnlyRunningStatus)
            continue;
         // If we don't have that event yet, we create a new one.
         // Otherwise we copy the information into the existing event anyway, because the data might have changed.
         pEvent = newEvent = new cEvent(SiEitEvent.getEventId());
         if (!pEvent)
            continue;
         }
      else {
         // We have found an existing event, either through its event ID or its start time.
         pEvent->SetSeen();
         // If the existing event has a zero table ID it was defined externally and shall
         // not be overwritten.
         uchar tableID = pEvent->TableID();
         if (tableID == 0x00) {
            if (pEvent->Version() == getVersionNumber())
               continue;
            HasExternalData = ExternalData = true;
            }
         // If the new event has a higher table ID, let's skip it.
         // The lower the table ID, the more "current" the information.
         else if (Tid > tableID)
            continue;
         // If the new event comes from the same table and has the same version number
         // as the existing one, let's skip it to avoid unnecessary work.
         // Unfortunately some stations (like, e.g. "Premiere") broadcast their EPG data on several transponders (like
         // the actual Premiere transponder and the Sat.1/Pro7 transponder), but use different version numbers on
         // each of them :-( So if one DVB card is tuned to the Premiere transponder, while an other one is tuned
         // to the Sat.1/Pro7 transponder, events will keep toggling because of the bogus version numbers.
         else if (Tid == tableID && pEvent->Version() == getVersionNumber())
            continue;
         }
      if (!ExternalData) {
         pEvent->SetEventID(SiEitEvent.getEventId()); // unfortunately some stations use different event ids for the same event in different tables :-(
         pEvent->SetTableID(Tid);
         pEvent->SetStartTime(startTime);
         pEvent->SetDuration(duration);
         }
      if (newEvent)
         pSchedule->AddEvent(newEvent);
      if (Tid == 0x4E) { // we trust only the present/following info on the actual TS
         if (SiEitEvent.getRunningStatus() >= SI::RunningStatusNotRunning)
            pSchedule->SetRunningStatus(pEvent, SiEitEvent.getRunningStatus(), channel);
         }
      if (OnlyRunningStatus)
         continue; // do this before setting the version, so that the full update can be done later
      pEvent->SetVersion(getVersionNumber());

      int LanguagePreferenceShort = -1;
      int LanguagePreferenceExt = -1;
      bool UseExtendedEventDescriptor = false;
      SI::Descriptor *d;
      SI::ExtendedEventDescriptors *ExtendedEventDescriptors = NULL;
      SI::ShortEventDescriptor *ShortEventDescriptor = NULL;
      cLinkChannels *LinkChannels = NULL;
      cComponents *Components = NULL;
      for (SI::Loop::Iterator it2; (d = SiEitEvent.eventDescriptors.getNext(it2)); ) {
          if (ExternalData && d->getDescriptorTag() != SI::ComponentDescriptorTag) {
             delete d;
             continue;
             }
          switch (d->getDescriptorTag()) {
            case SI::ExtendedEventDescriptorTag: {
                 SI::ExtendedEventDescriptor *eed = (SI::ExtendedEventDescriptor *)d;
                 if (I18nIsPreferredLanguage(Setup.EPGLanguages, eed->languageCode, LanguagePreferenceExt) || !ExtendedEventDescriptors) {
                    delete ExtendedEventDescriptors;
                    ExtendedEventDescriptors = new SI::ExtendedEventDescriptors;
                    UseExtendedEventDescriptor = true;
                    }
                 if (UseExtendedEventDescriptor) {
                    ExtendedEventDescriptors->Add(eed);
                    d = NULL; // so that it is not deleted
                    }
                 if (eed->getDescriptorNumber() == eed->getLastDescriptorNumber())
                    UseExtendedEventDescriptor = false;
                 }
                 break;
            case SI::ShortEventDescriptorTag: {
                 SI::ShortEventDescriptor *sed = (SI::ShortEventDescriptor *)d;
                 if (I18nIsPreferredLanguage(Setup.EPGLanguages, sed->languageCode, LanguagePreferenceShort) || !ShortEventDescriptor) {
                    delete ShortEventDescriptor;
                    ShortEventDescriptor = sed;
                    d = NULL; // so that it is not deleted
                    }
                 }
                 break;
            case SI::ContentDescriptorTag:
                 break;
            case SI::ParentalRatingDescriptorTag:
                 break;
            case SI::PDCDescriptorTag: {
                 SI::PDCDescriptor *pd = (SI::PDCDescriptor *)d;
                 t.tm_isdst = -1; // makes sure mktime() will determine the correct DST setting
                 int month = t.tm_mon;
                 t.tm_mon = pd->getMonth() - 1;
                 t.tm_mday = pd->getDay();
                 t.tm_hour = pd->getHour();
                 t.tm_min = pd->getMinute();
                 t.tm_sec = 0;
                 if (month == 11 && t.tm_mon == 0) // current month is dec, but event is in jan
                    t.tm_year++;
                 else if (month == 0 && t.tm_mon == 11) // current month is jan, but event is in dec
                    t.tm_year--;
                 time_t vps = mktime(&t);
                 pEvent->SetVps(vps);
                 }
                 break;
            case SI::TimeShiftedEventDescriptorTag: {
                 SI::TimeShiftedEventDescriptor *tsed = (SI::TimeShiftedEventDescriptor *)d;
                 cSchedule *rSchedule = (cSchedule *)Schedules->GetSchedule(tChannelID(Source, channel->Nid(), channel->Tid(), tsed->getReferenceServiceId()));
                 if (!rSchedule)
                    break;
                 rEvent = (cEvent *)rSchedule->GetEvent(tsed->getReferenceEventId());
                 if (!rEvent)
                    break;
                 pEvent->SetTitle(rEvent->Title());
                 pEvent->SetShortText(rEvent->ShortText());
                 pEvent->SetDescription(rEvent->Description());
                 }
                 break;
            case SI::LinkageDescriptorTag: {
                 SI::LinkageDescriptor *ld = (SI::LinkageDescriptor *)d;
                 tChannelID linkID(Source, ld->getOriginalNetworkId(), ld->getTransportStreamId(), ld->getServiceId());
#ifdef DBG_EIT_LINKS
                 dsyslog("[eit]: Linkage Type %X  (0xB0) == Premiere ", ld->getLinkageType());  
#endif
                 if (ld->getLinkageType() == 0xB0) { // Premiere World
                    bool hit = startTime <= now && now < startTime + duration;
                    if (hit) {
#ifdef DBG_EIT_LINKS
                       dsyslog("[eit]: get hit \n");
#endif
                       SI::String linkNameStr;
                       linkNameStr.setData(ld->privateData, ld->privateData.getLength());
                       char linkName[Utf8BufSize(ld->privateData.getLength() + 1)];
                       linkNameStr.getText(linkName, sizeof(linkName), charset);
                       cChannel *link = Channels.GetByChannelID(linkID);
#ifdef DBG_EIT_LINKS
                       dsyslog("[eit]: linkName %s  \n", linkName);
                       dsyslog("[eit]: linkName:  %s; ID %X  Channel: %s, ID %X \n", link->Name(),link->GetChannelID().Sid(), channel->Name(), channel->GetChannelID().Sid());
#endif
                       if (link != channel) { // only link to other channels, not the same one //XXX ?
#ifdef DBG_EIT_LINKS
                          dsyslog("[eit] Linkage %s %4d %4d %5d %5d %5d %5d  %02X  '%s'\n", hit ? "*" : "", channel->Number(), link ? link->Number() : -1, SiEitEvent.getEventId(), ld->getOriginalNetworkId(), ld->getTransportStreamId(), ld->getServiceId(), ld->getLinkageType(), linkName);//XXX
#endif
                          if (link) {
                             if (Setup.UpdateChannels == 1 || Setup.UpdateChannels >= 3) // Update in any case!
                                link->SetName(linkName, "", channel->Provider());
                             }
                          else if (Setup.UpdateChannels >= 4) {

                              if (channel->Tid() != ld->getTransportStreamId()) {
                                 cChannel *transponder = Channels.GetByTransponderID(linkID);
                                 link = Channels.NewChannel(transponder, linkName, "", channel->Provider(), ld->getOriginalNetworkId(), ld->getTransportStreamId(), ld->getServiceId());
                                 }
                              else
                                 link = Channels.NewChannel(channel, linkName, "", channel->Provider(), ld->getOriginalNetworkId(), ld->getTransportStreamId(), ld->getServiceId());
                             //XXX patFilter->Trigger();
                            }
                          if (link) {
                             if (!LinkChannels)
                                LinkChannels = new cLinkChannels;

#ifdef DBG_EIT_LINKS
                             dsyslog("[eit]: Add new cLinkChannel(link)\n");
#endif
                             LinkChannels->Add(new cLinkChannel(link));
                             }
                          }
                       else {
                          channel->SetPortalName(linkName);
#ifdef DBG_EIT_LINKS
                          dsyslog("[eit]: Set portal name %s to %s   hit \n",channel->Name(), linkName);
#endif
                          }
                       }
                    }
                 }
                 break;
            case SI::ComponentDescriptorTag: {
                 SI::ComponentDescriptor *cd = (SI::ComponentDescriptor *)d;
                 uchar Stream = cd->getStreamContent();
                 uchar Type = cd->getComponentType();
                 if (1 <= Stream && Stream <= 3 && Type != 0) { // 1=video, 2=audio, 3=subtitles
                    if (!Components)
                       Components = new cComponents;
                    char buffer[Utf8BufSize(256)];
                    Components->SetComponent(Components->NumComponents(), cd->getStreamContent(), cd->getComponentType(), I18nNormalizeLanguageCode(cd->languageCode), cd->description.getText(buffer, sizeof(buffer), charset));
                    }
                 }
                 break;
            default: ;
            }
          delete d;
          }

      if (!rEvent) {
         if (ShortEventDescriptor) {
            char buffer[Utf8BufSize(256)];
            pEvent->SetTitle(ShortEventDescriptor->name.getText(buffer, sizeof(buffer), charset));
            pEvent->SetShortText(ShortEventDescriptor->text.getText(buffer, sizeof(buffer), charset));
            }
         else if (!HasExternalData) {
            pEvent->SetTitle(NULL);
            pEvent->SetShortText(NULL);
            }
         if (ExtendedEventDescriptors) {
            char buffer[Utf8BufSize(ExtendedEventDescriptors->getMaximumTextLength(": ") + 1)];
            pEvent->SetDescription(ExtendedEventDescriptors->getText(buffer, sizeof(buffer), charset, ": "));
            }
         else if (!HasExternalData)
            pEvent->SetDescription(NULL);
         }
      delete ExtendedEventDescriptors;
      delete ShortEventDescriptor;

      pEvent->SetComponents(Components);

      if (!HasExternalData)
         pEvent->FixEpgBugs();
      if (LinkChannels)
         channel->SetLinkChannels(LinkChannels);
      Modified = true;
      }
  if (Tid == 0x4E) {
     if (Empty && getSectionNumber() == 0)
        // ETR 211: an empty entry in section 0 of table 0x4E means there is currently no event running
        pSchedule->ClrRunningStatus(channel);
     pSchedule->SetPresentSeen();
  }
  if (OnlyRunningStatus)
     return;
  if (Modified) {
     pSchedule->Sort();
     if (!HasExternalData)
        pSchedule->DropOutdated(SegmentStart, SegmentEnd, Tid, getVersionNumber());
     Schedules->SetModified(pSchedule);
     }
}