/** \fn ScanStreamData::IsRedundant(uint,const PSIPTable&) const
* \brief Returns true if table already seen.
*/
bool ScanStreamData::IsRedundant(uint pid, const PSIPTable &psip) const
{
// Treat BAT and SDTo as redundant unless they are on the FREESAT_SI_PID
if (dvb_uk_freesat_si &&
(psip.TableID() == TableID::BAT || psip.TableID() == TableID::SDTo))
return pid != FREESAT_SI_PID;
return (ATSCStreamData::IsRedundant(pid,psip) ||
DVBStreamData::IsRedundant(pid,psip));
}
// inserts tid&crc value into an ordered list
// returns true if item is inserted
static bool insert_crc(QList<uint64_t> &seen_crc, const PSIPTable &psip)
{
uint64_t key = (((uint64_t)psip.TableID()) << 32) | psip.CRC();
QList<uint64_t>::iterator it =
lower_bound(seen_crc.begin(), seen_crc.end(), key);
if ((it == seen_crc.end()) || (*it != key))
{
seen_crc.insert(it, key);
return true;
}
return false;
}
/** \fn DVBStreamData::IsRedundant(uint,const PSIPTable&) const
* \brief Returns true if table already seen.
* \todo This is just a stub.
*/
bool DVBStreamData::IsRedundant(uint pid, const PSIPTable &psip) const
{
if (MPEGStreamData::IsRedundant(pid, psip))
return true;
const int table_id = psip.TableID();
const int version = psip.Version();
if (TableID::NIT == table_id)
{
if (VersionNIT() != version)
return false;
return NITSectionSeen(psip.Section());
}
if (TableID::SDT == table_id)
{
if (VersionSDT(psip.TableIDExtension()) != version)
return false;
return SDTSectionSeen(psip.TableIDExtension(), psip.Section());
}
if (TableID::TDT == table_id)
return false;
if (TableID::BAT == table_id)
{
if (VersionBAT(psip.TableIDExtension()) != version)
return false;
return BATSectionSeen(psip.TableIDExtension(), psip.Section());
}
bool is_eit = false;
if (DVB_EIT_PID == pid || FREESAT_EIT_PID == pid)
{
// Standard Now/Next Event Information Tables for this transport
is_eit |= TableID::PF_EIT == table_id;
// Standard Future Event Information Tables for this transport
is_eit |= (TableID::SC_EITbeg <= table_id &&
TableID::SC_EITend >= table_id);
}
if (is_eit)
{
uint service_id = psip.TableIDExtension();
if (VersionEIT(table_id, service_id) != version)
return false;
return EITSectionSeen(table_id, service_id, psip.Section());
}
////////////////////////////////////////////////////////////////////////
// Other transport tables
if (TableID::NITo == table_id)
{
if (VersionNITo() != version)
return false;
return NIToSectionSeen(psip.Section());
}
if (TableID::SDTo == table_id)
{
if (VersionSDTo(psip.TableIDExtension()) != version)
return false;
return SDToSectionSeen(psip.TableIDExtension(), psip.Section());
}
if (DVB_EIT_PID == pid || FREESAT_EIT_PID == pid || MCA_EIT_PID == pid)
{
// Standard Now/Next Event Information Tables for other transport
is_eit |= TableID::PF_EITo == table_id;
// Standard Future Event Information Tables for other transports
is_eit |= (TableID::SC_EITbego <= table_id &&
TableID::SC_EITendo >= table_id);
}
if (DVB_DNLONG_EIT_PID == pid || DVB_BVLONG_EIT_PID == pid)
{
// Dish Network and Bev Long Term Future Event Information
// for all transports
is_eit |= (TableID::DN_EITbego <= table_id &&
TableID::DN_EITendo >= table_id);
}
if (is_eit)
{
uint service_id = psip.TableIDExtension();
if (VersionEIT(table_id, service_id) != version)
return false;
return EITSectionSeen(table_id, service_id, psip.Section());
}
if (((PREMIERE_EIT_DIREKT_PID == pid) || (PREMIERE_EIT_SPORT_PID == pid)) &&
TableID::PREMIERE_CIT == table_id)
{
uint content_id = PremiereContentInformationTable(psip).ContentID();
if (VersionCIT(content_id) != version)
return false;
return CITSectionSeen(content_id, psip.Section());
}
return false;
}
/** \fn DVBStreamData::HandleTables(uint pid, const PSIPTable&)
* \brief Assembles PSIP packets and processes them.
* \todo This is just a stub.
*/
bool DVBStreamData::HandleTables(uint pid, const PSIPTable &psip)
{
if (MPEGStreamData::HandleTables(pid, psip))
return true;
if (IsRedundant(pid, psip))
return true;
switch (psip.TableID())
{
case TableID::NIT:
{
if (_dvb_real_network_id >= 0 && psip.TableIDExtension() != (uint)_dvb_real_network_id)
{
NetworkInformationTable *nit = new NetworkInformationTable(psip);
if (!nit->Mutate())
{
delete nit;
return true;
}
bool retval = HandleTables(pid, *nit);
delete nit;
return retval;
}
SetVersionNIT(psip.Version(), psip.LastSection());
SetNITSectionSeen(psip.Section());
if (_cache_tables)
{
NetworkInformationTable *nit =
new NetworkInformationTable(psip);
CacheNIT(nit);
QMutexLocker locker(&_listener_lock);
for (uint i = 0; i < _dvb_main_listeners.size(); i++)
_dvb_main_listeners[i]->HandleNIT(nit);
}
else
{
NetworkInformationTable nit(psip);
QMutexLocker locker(&_listener_lock);
for (uint i = 0; i < _dvb_main_listeners.size(); i++)
_dvb_main_listeners[i]->HandleNIT(&nit);
}
return true;
}
case TableID::SDT:
{
uint tsid = psip.TableIDExtension();
SetVersionSDT(tsid, psip.Version(), psip.LastSection());
SetSDTSectionSeen(tsid, psip.Section());
if (_cache_tables)
{
ServiceDescriptionTable *sdt =
new ServiceDescriptionTable(psip);
CacheSDT(sdt);
ProcessSDT(tsid, sdt);
}
else
{
ServiceDescriptionTable sdt(psip);
ProcessSDT(tsid, &sdt);
}
return true;
}
case TableID::TDT:
{
TimeDateTable tdt(psip);
UpdateTimeOffset(tdt.UTCUnix());
QMutexLocker locker(&_listener_lock);
for (uint i = 0; i < _dvb_main_listeners.size(); i++)
_dvb_main_listeners[i]->HandleTDT(&tdt);
return true;
}
case TableID::NITo:
{
if (_dvb_real_network_id >= 0 && psip.TableIDExtension() == (uint)_dvb_real_network_id)
{
NetworkInformationTable *nit = new NetworkInformationTable(psip);
if (!nit->Mutate())
{
delete nit;
return true;
}
bool retval = HandleTables(pid, *nit);
delete nit;
return retval;
}
SetVersionNITo(psip.Version(), psip.LastSection());
SetNIToSectionSeen(psip.Section());
NetworkInformationTable nit(psip);
QMutexLocker locker(&_listener_lock);
for (uint i = 0; i < _dvb_other_listeners.size(); i++)
_dvb_other_listeners[i]->HandleNITo(&nit);
return true;
}
case TableID::SDTo:
{
uint tsid = psip.TableIDExtension();
SetVersionSDTo(tsid, psip.Version(), psip.LastSection());
SetSDToSectionSeen(tsid, psip.Section());
ServiceDescriptionTable sdt(psip);
// some providers send the SDT for the current multiplex as SDTo
// this routine changes the TableID to SDT and recalculates the CRC
if (_desired_netid == sdt.OriginalNetworkID() &&
_desired_tsid == tsid)
{
ServiceDescriptionTable *sdta =
new ServiceDescriptionTable(psip);
if (!sdta->Mutate())
{
delete sdta;
return true;
}
if (_cache_tables)
{
CacheSDT(sdta);
ProcessSDT(tsid, sdta);
}
else
{
ProcessSDT(tsid, sdta);
delete sdta;
}
return true;
}
QMutexLocker locker(&_listener_lock);
for (uint i = 0; i < _dvb_other_listeners.size(); i++)
_dvb_other_listeners[i]->HandleSDTo(tsid, &sdt);
return true;
}
case TableID::BAT:
{
uint bid = psip.TableIDExtension();
SetVersionBAT(bid, psip.Version(), psip.LastSection());
SetBATSectionSeen(bid, psip.Section());
BouquetAssociationTable bat(psip);
QMutexLocker locker(&_listener_lock);
for (uint i = 0; i < _dvb_other_listeners.size(); i++)
_dvb_other_listeners[i]->HandleBAT(&bat);
return true;
}
}
if ((DVB_EIT_PID == pid || DVB_DNLONG_EIT_PID == pid || FREESAT_EIT_PID == pid ||
((MCA_ONID == _desired_netid) && (MCA_EIT_TSID == _desired_tsid) &&
(MCA_EIT_PID == pid)) || DVB_BVLONG_EIT_PID == pid) &&
DVBEventInformationTable::IsEIT(psip.TableID()))
{
QMutexLocker locker(&_listener_lock);
if (!_dvb_eit_listeners.size() && !_eit_helper)
return true;
uint service_id = psip.TableIDExtension();
SetVersionEIT(psip.TableID(), service_id, psip.Version(), psip.LastSection());
SetEITSectionSeen(psip.TableID(), service_id, psip.Section());
DVBEventInformationTable eit(psip);
for (uint i = 0; i < _dvb_eit_listeners.size(); i++)
_dvb_eit_listeners[i]->HandleEIT(&eit);
if (_eit_helper)
_eit_helper->AddEIT(&eit);
return true;
}
if (_desired_netid == PREMIERE_ONID &&
(PREMIERE_EIT_DIREKT_PID == pid || PREMIERE_EIT_SPORT_PID == pid) &&
PremiereContentInformationTable::IsEIT(psip.TableID()))
{
QMutexLocker locker(&_listener_lock);
if (!_dvb_eit_listeners.size() && !_eit_helper)
return true;
PremiereContentInformationTable cit(psip);
SetVersionCIT(cit.ContentID(), cit.Version());
SetCITSectionSeen(cit.ContentID(), cit.Section());
for (uint i = 0; i < _dvb_eit_listeners.size(); i++)
_dvb_eit_listeners[i]->HandleEIT(&cit);
if (_eit_helper)
_eit_helper->AddEIT(&cit);
return true;
}
return false;
}