cEIT::cEIT(cSchedules *Schedules, int Source, u_char Tid, const u_char *Data, bool OnlyRunningStatus)
:SI::EIT(Data, false)
{
if (!CheckCRCAndParse())
return;
time_t Now = time(NULL);
if (Now < VALID_TIME)
return; // we need the current time for handling PDC descriptors
if (!Channels.Lock(false, 10))
return;
tChannelID channelID(Source, getOriginalNetworkId(), getTransportStreamId(), getServiceId());
cChannel *channel = Channels.GetByChannelID(channelID, true);
if (!channel || EpgHandlers.IgnoreChannel(channel)) {
Channels.Unlock();
return;
}
bool handledExternally = EpgHandlers.HandledExternally(channel);
cSchedule *pSchedule = (cSchedule *)Schedules->GetSchedule(channel, true);
bool Empty = true;
bool Modified = false;
time_t SegmentStart = 0;
time_t SegmentEnd = 0;
struct tm tm_r;
struct tm t = *localtime_r(&Now, &tm_r); // this initializes the time zone in 't'
SI::EIT::Event SiEitEvent;
for (SI::Loop::Iterator it; eventLoop.getNext(SiEitEvent, it); ) {
if (EpgHandlers.HandleEitEvent(pSchedule, &SiEitEvent, Tid, getVersionNumber()))
continue; // an EPG handler has done all of the processing
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 || handledExternally) {
if (OnlyRunningStatus)
continue;
if (handledExternally && !EpgHandlers.IsUpdate(SiEitEvent.getEventId(), StartTime, Tid, getVersionNumber()))
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());
newEvent->SetStartTime(StartTime);
newEvent->SetDuration(Duration);
if (!handledExternally)
pSchedule->AddEvent(newEvent);
}
else {
// We have found an existing event, either through its event ID or its start time.
pEvent->SetSeen();
uchar TableID = max(pEvent->TableID(), uchar(0x4E)); // for backwards compatibility, table ids less than 0x4E are treated as if they were "present"
// If the new event has a higher table ID, let's skip it.
// The lower the table ID, the more "current" the information.
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;
EpgHandlers.SetEventID(pEvent, SiEitEvent.getEventId()); // unfortunately some stations use different event ids for the same event in different tables :-(
EpgHandlers.SetStartTime(pEvent, StartTime);
EpgHandlers.SetDuration(pEvent, Duration);
}
if (pEvent->TableID() > 0x4E) // for backwards compatibility, table ids less than 0x4E are never overwritten
pEvent->SetTableID(Tid);
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) {
pEvent->SetVersion(0xFF); // we have already changed the table id above, so set the version to an invalid value to make sure the next full run will be executed
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)); ) {
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[MaxEventContents] = { 0 };
for (SI::Loop::Iterator it3; cd->nibbleLoop.getNext(Nibble, it3); ) {
if (NumContents < MaxEventContents) {
Contents[NumContents] = ((Nibble.getContentNibbleLevel1() & 0xF) << 4) | (Nibble.getContentNibbleLevel2() & 0xF);
NumContents++;
}
}
EpgHandlers.SetContents(pEvent, 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;
}
EpgHandlers.SetParentalRating(pEvent, 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);
EpgHandlers.SetVps(pEvent, 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;
EpgHandlers.SetTitle(pEvent, rEvent->Title());
EpgHandlers.SetShortText(pEvent, rEvent->ShortText());
EpgHandlers.SetDescription(pEvent, 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 <= 6 && Type != 0) { // 1=MPEG2-video, 2=MPEG1-audio, 3=subtitles, 4=AC3-audio, 5=H.264-video, 6=HEAAC-audio
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)];
EpgHandlers.SetTitle(pEvent, ShortEventDescriptor->name.getText(buffer, sizeof(buffer)));
EpgHandlers.SetShortText(pEvent, ShortEventDescriptor->text.getText(buffer, sizeof(buffer)));
}
else {
EpgHandlers.SetTitle(pEvent, NULL);
EpgHandlers.SetShortText(pEvent, NULL);
}
if (ExtendedEventDescriptors) {
char buffer[Utf8BufSize(ExtendedEventDescriptors->getMaximumTextLength(": ")) + 1];
EpgHandlers.SetDescription(pEvent, ExtendedEventDescriptors->getText(buffer, sizeof(buffer), ": "));
}
else
EpgHandlers.SetDescription(pEvent, NULL);
}
delete ExtendedEventDescriptors;
delete ShortEventDescriptor;
EpgHandlers.SetComponents(pEvent, Components);
EpgHandlers.FixEpgBugs(pEvent);
if (LinkChannels)
channel->SetLinkChannels(LinkChannels);
Modified = true;
EpgHandlers.HandleEvent(pEvent);
if (handledExternally)
delete pEvent;
}
tChannelID cEvent::ChannelID(void) const
{
return schedule ? schedule->ChannelID() : tChannelID();
}
void cSdtFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length)
{
if (!(Source() && Transponder()))
return;
SI::SDT sdt(Data, false);
if (!sdt.CheckCRCAndParse())
return;
if (!sectionSyncer.Sync(sdt.getVersionNumber(), sdt.getSectionNumber(), sdt.getLastSectionNumber()))
return;
if (!Channels.Lock(true, 10))
return;
SI::SDT::Service SiSdtService;
for (SI::Loop::Iterator it; sdt.serviceLoop.getNext(SiSdtService, it); ) {
cChannel *channel = Channels.GetByChannelID(tChannelID(Source(), sdt.getOriginalNetworkId(), sdt.getTransportStreamId(), SiSdtService.getServiceId()));
if (!channel)
channel = Channels.GetByChannelID(tChannelID(Source(), 0, Transponder(), SiSdtService.getServiceId()));
cLinkChannels *LinkChannels = NULL;
SI::Descriptor *d;
for (SI::Loop::Iterator it2; (d = SiSdtService.serviceDescriptors.getNext(it2)); ) {
switch (d->getDescriptorTag()) {
case SI::ServiceDescriptorTag: {
SI::ServiceDescriptor *sd = (SI::ServiceDescriptor *)d;
switch (sd->getServiceType()) {
case 0x01: // digital television service
case 0x02: // digital radio sound service
case 0x04: // NVOD reference service
case 0x05: // NVOD time-shifted service
{
char NameBuf[1024];
char ShortNameBuf[1024];
char ProviderNameBuf[1024];
sd->serviceName.getText(NameBuf, ShortNameBuf, sizeof(NameBuf), sizeof(ShortNameBuf));
char *pn = compactspace(NameBuf);
char *ps = compactspace(ShortNameBuf);
if (!*ps && cSource::IsCable(Source())) {
// Some cable providers don't mark short channel names according to the
// standard, but rather go their own way and use "name>short name" or
// "name, short name":
char *p = strchr(pn, '>'); // fix for UPC Wien
if (!p)
p = strchr(pn, ','); // fix for "Kabel Deutschland"
if (p && p > pn) {
*p++ = 0;
strcpy(ShortNameBuf, skipspace(p));
}
}
sd->providerName.getText(ProviderNameBuf, sizeof(ProviderNameBuf));
char *pp = compactspace(ProviderNameBuf);
if (channel) {
channel->SetId(sdt.getOriginalNetworkId(), sdt.getTransportStreamId(), SiSdtService.getServiceId());
if (Setup.UpdateChannels == 1 || Setup.UpdateChannels >= 3)
channel->SetName(pn, ps, pp);
// Using SiSdtService.getFreeCaMode() is no good, because some
// tv stations set this flag even for non-encrypted channels :-(
// The special value 0xFFFF was supposed to mean "unknown encryption"
// and would have been overwritten with real CA values later:
// channel->SetCa(SiSdtService.getFreeCaMode() ? 0xFFFF : 0);
}
else if (*pn && Setup.UpdateChannels >= 4) {
channel = Channels.NewChannel(Channel(), pn, ps, pp, sdt.getOriginalNetworkId(), sdt.getTransportStreamId(), SiSdtService.getServiceId());
patFilter->Trigger();
}
}
}
}
break;
// Using the CaIdentifierDescriptor is no good, because some tv stations
// just don't use it. The actual CA values are collected in pat.c:
/*
case SI::CaIdentifierDescriptorTag: {
SI::CaIdentifierDescriptor *cid = (SI::CaIdentifierDescriptor *)d;
if (channel) {
for (SI::Loop::Iterator it; cid->identifiers.hasNext(it); )
channel->SetCa(cid->identifiers.getNext(it));
}
}
break;
*/
case SI::NVODReferenceDescriptorTag: {
SI::NVODReferenceDescriptor *nrd = (SI::NVODReferenceDescriptor *)d;
SI::NVODReferenceDescriptor::Service Service;
for (SI::Loop::Iterator it; nrd->serviceLoop.getNext(Service, it); ) {
cChannel *link = Channels.GetByChannelID(tChannelID(Source(), Service.getOriginalNetworkId(), Service.getTransportStream(), Service.getServiceId()));
if (!link && Setup.UpdateChannels >= 4) {
link = Channels.NewChannel(Channel(), "NVOD", "", "", Service.getOriginalNetworkId(), Service.getTransportStream(), Service.getServiceId());
patFilter->Trigger();
}
if (link) {
if (!LinkChannels)
LinkChannels = new cLinkChannels;
LinkChannels->Add(new cLinkChannel(link));
}
}
}
break;
default: ;
}
delete d;
}
if (LinkChannels) {
if (channel)
channel->SetLinkChannels(LinkChannels);
else
delete LinkChannels;
}
}
Channels.Unlock();
}
