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fastscan.cpp
753 lines (658 loc) · 22 KB
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fastscan.cpp
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#include <byteswap.h>
#include <dvbsi++/byte_stream.h>
#include <dvbsi++/descriptor_tag.h>
#include <lib/dvb/db.h>
#include <lib/dvb/dvb.h>
#include <lib/dvb/sec.h>
#include <lib/dvb/frontend.h>
#include <lib/dvb/fastscan.h>
#include <lib/base/cfile.h>
#include <lib/base/estring.h>
#include <lib/base/nconfig.h>
FastScanLogicalChannel::FastScanLogicalChannel(const uint8_t *const buffer)
{
serviceId = UINT16(&buffer[0]);
hiddenFlag = (buffer[2] >> 6) & 0x01;
logicalChannelNumber = UINT16(&buffer[2]) & 0x3fff;
}
FastScanLogicalChannel::~FastScanLogicalChannel(void)
{
}
uint16_t FastScanLogicalChannel::getServiceId(void) const
{
return serviceId;
}
uint8_t FastScanLogicalChannel::getHiddenFlag(void) const
{
return hiddenFlag;
}
uint16_t FastScanLogicalChannel::getLogicalChannelNumber(void) const
{
return logicalChannelNumber;
}
FastScanLogicalChannelDescriptor::FastScanLogicalChannelDescriptor(const uint8_t *const buffer)
: Descriptor(buffer)
{
uint16_t pos = 2;
uint16_t bytesLeft = descriptorLength;
uint16_t loopLength = 4;
while (bytesLeft >= loopLength) {
channelList.push_back(new FastScanLogicalChannel(&buffer[pos]));
bytesLeft -= loopLength;
pos += loopLength;
}
}
FastScanLogicalChannelDescriptor::~FastScanLogicalChannelDescriptor(void)
{
for (FastScanLogicalChannelListIterator i = channelList.begin(); i != channelList.end(); ++i)
delete *i;
}
const FastScanLogicalChannelList *FastScanLogicalChannelDescriptor::getChannelList(void) const
{
return &channelList;
}
FastScanService::FastScanService(const uint8_t * const buffer)
: ServiceDescriptor(&buffer[18])
{
originalNetworkId = UINT16(&buffer[0]);
transportStreamId = UINT16(&buffer[2]);
serviceId = UINT16(&buffer[4]);
defaultVideoPid = DVB_PID(&buffer[6]);
defaultAudioPid = DVB_PID(&buffer[8]);
defaultVideoEcmPid = DVB_PID(&buffer[10]);
defaultAudioEcmPid = DVB_PID(&buffer[12]);
defaultPcrPid = DVB_PID(&buffer[14]);
descriptorLoopLength = DVB_LENGTH(&buffer[16]);
}
FastScanService::~FastScanService(void)
{
}
uint16_t FastScanService::getOriginalNetworkId(void) const
{
return originalNetworkId;
}
uint16_t FastScanService::getTransportStreamId(void) const
{
return transportStreamId;
}
uint16_t FastScanService::getServiceId(void) const
{
return serviceId;
}
uint16_t FastScanService::getDefaultVideoPid(void) const
{
return defaultVideoPid;
}
uint16_t FastScanService::getDefaultAudioPid(void) const
{
return defaultAudioPid;
}
uint16_t FastScanService::getDefaultVideoEcmPid(void) const
{
return defaultVideoEcmPid;
}
uint16_t FastScanService::getDefaultAudioEcmPid(void) const
{
return defaultAudioEcmPid;
}
uint16_t FastScanService::getDefaultPcrPid(void) const
{
return defaultPcrPid;
}
FastScanServicesSection::FastScanServicesSection(const uint8_t * const buffer) : LongCrcSection(buffer)
{
uint16_t pos = 8;
uint16_t bytesLeft = sectionLength > 8 ? sectionLength - 8 : 0;
uint16_t loopLength = 0;
versionNumber = (buffer[5] >> 1) & 0x1f;
while (bytesLeft > 17 && bytesLeft >= (loopLength = 18 + DVB_LENGTH(&buffer[pos+16])))
{
services.push_back(new FastScanService(&buffer[pos]));
bytesLeft -= loopLength;
pos += loopLength;
}
}
FastScanServicesSection::~FastScanServicesSection(void)
{
for (FastScanServiceListIterator i = services.begin(); i != services.end(); ++i)
delete *i;
}
uint8_t FastScanServicesSection::getVersion(void) const
{
return versionNumber;
}
const FastScanServiceList *FastScanServicesSection::getServices(void) const
{
return &services;
}
FastScanTransportStream::FastScanTransportStream(const uint8_t *const buffer)
: deliverySystem(NULL), serviceList(NULL), logicalChannels(NULL)
{
transportStreamId = UINT16(&buffer[0]);
originalNetworkId = UINT16(&buffer[2]);
descriptorLoopLength = DVB_LENGTH(&buffer[4]);
uint16_t pos = 6;
uint16_t bytesLeft = descriptorLoopLength;
uint16_t loopLength = 0;
while (bytesLeft > 1 && bytesLeft >= (loopLength = 2 + buffer[pos + 1]))
{
switch (buffer[pos])
{
case LOGICAL_CHANNEL_DESCRIPTOR:
logicalChannels = new FastScanLogicalChannelDescriptor(&buffer[pos]);
break;
case SATELLITE_DELIVERY_SYSTEM_DESCRIPTOR:
deliverySystem = new SatelliteDeliverySystemDescriptor(&buffer[pos]);
break;
case SERVICE_LIST_DESCRIPTOR:
serviceList = new ServiceListDescriptor(&buffer[pos]);
break;
}
bytesLeft -= loopLength;
pos += loopLength;
}
}
FastScanTransportStream::~FastScanTransportStream(void)
{
delete deliverySystem;
delete serviceList;
delete logicalChannels;
}
uint16_t FastScanTransportStream::getOriginalNetworkId(void) const
{
return originalNetworkId;
}
uint16_t FastScanTransportStream::getTransportStreamId(void) const
{
return transportStreamId;
}
uint16_t FastScanTransportStream::getOrbitalPosition(void) const
{
if (deliverySystem) return deliverySystem->getOrbitalPosition();
return 0;
}
uint8_t FastScanTransportStream::getWestEastFlag(void) const
{
if (deliverySystem) return deliverySystem->getWestEastFlag();
return 0;
}
uint32_t FastScanTransportStream::getFrequency(void) const
{
if (deliverySystem) return deliverySystem->getFrequency();
return 0;
}
uint8_t FastScanTransportStream::getPolarization(void) const
{
if (deliverySystem) return deliverySystem->getPolarization();
return 0;
}
uint8_t FastScanTransportStream::getRollOff(void) const
{
if (deliverySystem) return deliverySystem->getRollOff();
return 0;
}
uint8_t FastScanTransportStream::getModulationSystem(void) const
{
if (deliverySystem) return deliverySystem->getModulationSystem();
return 0;
}
uint8_t FastScanTransportStream::getModulation(void) const
{
if (deliverySystem) return deliverySystem->getModulation();
return 0;
}
uint32_t FastScanTransportStream::getSymbolRate(void) const
{
if (deliverySystem) return deliverySystem->getSymbolRate();
return 0;
}
uint8_t FastScanTransportStream::getFecInner(void) const
{
if (deliverySystem) return deliverySystem->getFecInner();
return 0;
}
const ServiceListItemList *FastScanTransportStream::getServiceList(void) const
{
if (serviceList) return serviceList->getServiceList();
return NULL;
}
const FastScanLogicalChannelList *FastScanTransportStream::getLogicalChannelList(void) const
{
if (logicalChannels) return logicalChannels->getChannelList();
return NULL;
}
FastScanNetworkSection::FastScanNetworkSection(const uint8_t * const buffer)
: LongCrcSection(buffer), NetworkNameDescriptor(&buffer[10])
{
uint16_t networkdescriptorLength = DVB_LENGTH(&buffer[8]);
uint16_t pos = 10 + networkdescriptorLength;
uint16_t bytesLeft = DVB_LENGTH(&buffer[pos]);
pos += 2;
uint16_t loopLength = 0;
versionNumber = (buffer[5] >> 1) & 0x1f;
while (bytesLeft >= 6 && bytesLeft >= (loopLength = 6 + DVB_LENGTH(&buffer[pos + 4])))
{
transportStreams.push_back(new FastScanTransportStream(&buffer[pos]));
bytesLeft -= loopLength;
pos += loopLength;
}
}
FastScanNetworkSection::~FastScanNetworkSection(void)
{
for (FastScanTransportStreamListIterator i = transportStreams.begin(); i != transportStreams.end(); ++i)
delete *i;
}
uint8_t FastScanNetworkSection::getVersion(void) const
{
return versionNumber;
}
const FastScanTransportStreamList *FastScanNetworkSection::getTransportStreams(void) const
{
return &transportStreams;
}
DEFINE_REF(eFastScan);
eFastScan::eFastScan(int pid, const char *providername, eDVBFrontendParametersSatellite transponderparameters, bool originalnumbering, bool fixedserviceinfo, bool createradiobouquet)
{
m_pid = pid;
providerName = providername;
bouquetFilename = replace_all(providerName, " ", "");
transponderParameters = transponderparameters;
originalNumbering = originalnumbering;
useFixedServiceInfo = fixedserviceinfo;
createRadioBouquet = createradiobouquet;
versionNumber = -1;
}
eFastScan::~eFastScan()
{
}
void eFastScan::startFile(const char *fnt, const char *fst)
{
versionNumber = -1;
{
CFile file(fst, "rb");
if (file)
{
eFastScanFileTable<FastScanServicesSection> *table = new eFastScanFileTable<FastScanServicesSection>;
m_ServicesTable = table;
table->readFile(file);
}
}
{
CFile file(fnt, "rb");
if (file)
{
eFastScanFileTable<FastScanNetworkSection> *table = new eFastScanFileTable<FastScanNetworkSection>;
m_NetworkTable = table;
table->readFile(file);
}
}
if (m_ServicesTable && m_NetworkTable)
{
parseResult();
}
else
{
scanCompleted(-1);
}
m_ServicesTable = NULL;
m_NetworkTable = NULL;
}
void eFastScan::start(int frontendid)
{
/* scan on fastscan channel */
ePtr<eDVBResourceManager> res;
eDVBResourceManager::getInstance(res);
ePtr<iDVBFrontend> fe;
versionNumber = -1;
if (res->allocateRawChannel(m_channel, frontendid))
{
eDebug("[eFastScan] failed to allocate fastscan channel!");
scanCompleted(-1);
return;
}
m_channel->getFrontend(fe);
m_channel->getDemux(m_demux);
eDVBFrontendParameters parm;
parm.setDVBS(transponderParameters);
fe->tune(parm);
m_ServicesTable = new eFastScanTable<FastScanServicesSection>;
m_NetworkTable = new eFastScanTable<FastScanNetworkSection>;
CONNECT(m_ServicesTable->tableProgress, eFastScan::servicesTableProgress);
CONNECT(m_NetworkTable->tableProgress, eFastScan::networkTableProgress);
CONNECT(m_ServicesTable->tableReady, eFastScan::servicesTableReady);
CONNECT(m_NetworkTable->tableReady, eFastScan::networkTableReady);
m_ServicesTable->start(m_demux, eDVBFastScanServicesSpec(m_pid));
}
int eFastScan::getVersion()
{
return versionNumber;
}
void eFastScan::servicesTableProgress(int size, int max)
{
scanProgress(size * 45 / max);
}
void eFastScan::networkTableProgress(int size, int max)
{
scanProgress(45 + size * 45 / max);
}
void eFastScan::servicesTableReady(int error)
{
eDebug("[eFastScan] servicesTableReady %d", error);
if (error)
{
m_channel = NULL;
m_demux = NULL;
m_ServicesTable = NULL;
m_NetworkTable = NULL;
scanCompleted(-1);
}
else
{
m_NetworkTable->start(m_demux, eDVBFastScanNetworkSpec(m_pid));
}
}
void eFastScan::networkTableReady(int error)
{
eDebug("[eFastScan] networkTableReady %d", error);
if (!error)
{
parseResult();
}
else
{
scanCompleted(-1);
}
m_channel = NULL;
m_demux = NULL;
m_ServicesTable = NULL;
m_NetworkTable = NULL;
}
void eFastScan::fillBouquet(eBouquet *bouquet, std::map<int, eServiceReferenceDVB> &numbered_channels)
{
if (bouquet)
{
bouquet->m_bouquet_name = providerName;
int number = 1;
for (std::map<int, eServiceReferenceDVB>::const_iterator
service(numbered_channels.begin()); service != numbered_channels.end(); ++service)
{
if (originalNumbering)
{
while (number < service->first)
{
eServiceReference ref(eServiceReference::idDVB, eServiceReference::isMarker | eServiceReference::isNumberedMarker);
ref.setName("-");
bouquet->m_services.push_back(ref);
number++;
}
}
bouquet->m_services.push_back(service->second);
number++;
}
bouquet->flushChanges();
eDVBDB::getInstance()->renumberBouquet();
}
}
void eFastScan::parseResult()
{
ePtr<iDVBChannelList> db;
ePtr<eDVBResourceManager> res;
eDVBResourceManager::getInstance(res);
res->getChannelList(db);
eDVBDB *dvbdb = eDVBDB::getInstance();
std::vector<FastScanNetworkSection*> networksections = m_NetworkTable->getSections();
std::vector<FastScanServicesSection*> servicessections = m_ServicesTable->getSections();
std::map<uint16_t, std::map<uint16_t, std::map<uint16_t, int> > > service_orbital_position;
std::map<int, eServiceReferenceDVB> numbered_channels;
std::map<int, eServiceReferenceDVB> radio_channels;
if (!networksections.empty()) versionNumber = networksections[0]->getVersion();
bool drop = eConfigManager::getConfigBoolValue("config.misc.fastscan.drop");
for (unsigned int i = 0; i < networksections.size(); i++)
{
const FastScanTransportStreamList *transportstreams = networksections[i]->getTransportStreams();
for (FastScanTransportStreamListConstIterator it = transportstreams->begin(); it != transportstreams->end(); it++)
{
eDVBChannelID chid;
int orbitalposbcd = (*it)->getOrbitalPosition();
int orbitalpos = (orbitalposbcd & 0x0f) + ((orbitalposbcd >> 4) & 0x0f) * 10 + ((orbitalposbcd >> 8) & 0x0f) * 100 + ((orbitalposbcd >> 12) & 0x0f) * 1000;
int westeastflag = (*it)->getWestEastFlag();
if (orbitalpos && !westeastflag)
orbitalpos = 3600 - orbitalpos;
if ((orbitalpos == 0) || (drop && transponderParameters.orbital_position != orbitalpos &&
!eDVBSatelliteEquipmentControl::getInstance()->isOrbitalPositionConfigured(orbitalpos)))
{
eDebug("[eFastScan] dropping this transponder, it's on another satellite %d not configured.", orbitalpos);
continue;
}
chid.dvbnamespace = eDVBNamespace(orbitalpos<<16);
chid.transport_stream_id = eTransportStreamID((*it)->getTransportStreamId());
chid.original_network_id = eOriginalNetworkID((*it)->getOriginalNetworkId());
ePtr<eDVBFrontendParameters> parm = new eDVBFrontendParameters();
eDVBFrontendParametersSatellite fesat;
fesat.frequency = (*it)->getFrequency() * 10;
fesat.symbol_rate = (*it)->getSymbolRate() * 100;
fesat.polarisation = (*it)->getPolarization();
fesat.fec = (*it)->getFecInner();
fesat.inversion = eDVBFrontendParametersSatellite::Inversion_Unknown;
fesat.orbital_position = orbitalpos;
fesat.system = (*it)->getModulationSystem();
fesat.modulation = (*it)->getModulation();
fesat.rolloff = (*it)->getRollOff();
fesat.pilot = eDVBFrontendParametersSatellite::Pilot_Unknown;
fesat.is_id = eDVBFrontendParametersSatellite::No_Stream_Id_Filter;
fesat.pls_mode = eDVBFrontendParametersSatellite::PLS_Gold;
fesat.pls_code = eDVBFrontendParametersSatellite::PLS_Default_Gold_Code;
fesat.t2mi_plp_id = eDVBFrontendParametersSatellite::No_T2MI_PLP_Id;
fesat.t2mi_pid = eDVBFrontendParametersSatellite::T2MI_Default_Pid;
parm->setDVBS(fesat);
db->addChannelToList(chid, parm);
std::map<int, int> servicetypemap;
const ServiceListItemList *services = (*it)->getServiceList();
if (services)
for (ServiceListItemConstIterator service = services->begin(); service != services->end(); service++)
servicetypemap[(*service)->getServiceId()] = (*service)->getServiceType();
const FastScanLogicalChannelList *channels = (*it)->getLogicalChannelList();
if (channels)
{
for (FastScanLogicalChannelListConstIterator channel = channels->begin(); channel != channels->end(); channel++)
{
int type = servicetypemap[(*channel)->getServiceId()];
eServiceReferenceDVB ref(orbitalpos << 16, (*it)->getTransportStreamId(), (*it)->getOriginalNetworkId(), (*channel)->getServiceId(), type);
service_orbital_position[(*it)->getTransportStreamId()][(*it)->getOriginalNetworkId()][(*channel)->getServiceId()] = orbitalpos;
if (createRadioBouquet)
{
switch (type)
{
case 1: /* digital television service */
case 4: /* nvod reference service (NYI) */
case 17: /* MPEG-2 HD digital television service */
case 22: /* advanced codec SD digital television */
case 24: /* advanced codec SD NVOD reference service (NYI) */
case 25: /* advanced codec HD digital television */
case 27: /* advanced codec HD NVOD reference service (NYI) */
default:
/* just assume that anything *not* radio is tv */
numbered_channels[(*channel)->getLogicalChannelNumber()] = ref;
break;
case 2: /* digital radio sound service */
case 10: /* advanced codec digital radio sound service */
radio_channels[(*channel)->getLogicalChannelNumber()] = ref;
break;
}
}
else
numbered_channels[(*channel)->getLogicalChannelNumber()] = ref;
}
}
}
}
std::map<eServiceReferenceDVB, ePtr<eDVBService> > new_services;
for (unsigned int i = 0; i < servicessections.size(); i++)
{
const FastScanServiceList *services = servicessections[i]->getServices();
for (FastScanServiceListConstIterator it = services->begin(); it != services->end(); it++)
{
eServiceReferenceDVB ref(service_orbital_position[(*it)->getTransportStreamId()][(*it)->getOriginalNetworkId()][(*it)->getServiceId()] << 16, (*it)->getTransportStreamId(), (*it)->getOriginalNetworkId(), (*it)->getServiceId(), (*it)->getServiceType());
eDVBService *service = new eDVBService;
service->m_service_name = convertDVBUTF8((*it)->getServiceName());
service->genSortName();
service->m_provider_name = convertDVBUTF8((*it)->getServiceProviderName());
/*
* NOTE: it makes no sense to store the default video pid, without knowing the video stream type.
* However, assuming there is only one video stream, the cache information will be fixed
* (and the missing video stream type added) as soon as the channel is selected for the first time.
*/
service->setCacheEntry(eDVBService::cVPID, (*it)->getDefaultVideoPid());
/*
* NOTE: it makes no sense to store the default audio pid, we do not have any information about
* the stream type (so we risk storing the wrong information in the cache).
* When we have only one audio stream, the information will be fixed as soon as the channel
* is selected for the first time.
* However, when the channel has more than one audio stream, the information will not be fixed
* untill the user selects a different audio track.
* So we will not store the default audio pid in the cache.
*/
#if 0
service->setCacheEntry(eDVBService::cMPEGAPID, (*it)->getDefaultAudioPid());
#endif
service->setCacheEntry(eDVBService::cPCRPID, (*it)->getDefaultPcrPid());
if (useFixedServiceInfo)
{
/* we want to use the fixed settings from our fastscan table, don't allow them to be overruled by sdt and nit */
service->m_flags = eDVBService::dxHoldName | eDVBService::dxNoSDT;
}
new_services[ref] = service;
}
}
for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::const_iterator
service(new_services.begin()); service != new_services.end(); ++service)
{
ePtr<eDVBService> dvb_service;
if (!db->getService(service->first, dvb_service))
{
if (useFixedServiceInfo)
{
/*
* replace current settings by fastscan settings,
* note that we don't obey the dxHoldName flag here,
* as the user explicitly gave us permission to use
* the fastscan names.
*/
dvb_service->m_service_name = service->second->m_service_name;
dvb_service->m_service_name_sort = service->second->m_service_name_sort;
dvb_service->m_provider_name = service->second->m_provider_name;
}
dvb_service->m_flags |= service->second->m_flags;
if (service->second->m_ca.size())
dvb_service->m_ca = service->second->m_ca;
}
else
{
db->addService(service->first, service->second);
service->second->m_flags |= eDVBService::dxNewFound;
}
}
bool multibouquet = eConfigManager::getConfigBoolValue("config.usage.multibouquet");
if (multibouquet)
{
std::string bouquetname = "userbouquet." + bouquetFilename + ".tv";
std::string bouquetquery = "FROM BOUQUET \"" + bouquetname + "\" ORDER BY bouquet";
eServiceReference bouquetref(eServiceReference::idDVB, eServiceReference::flagDirectory, bouquetquery);
bouquetref.setData(0, 1); /* bouquet 'servicetype' tv */
eBouquet *bouquet = NULL;
eServiceReference rootref(eServiceReference::idDVB, eServiceReference::flagDirectory, "FROM BOUQUET \"bouquets.tv\" ORDER BY bouquet");
if (!db->getBouquet(bouquetref, bouquet) && bouquet)
{
/* bouquet already exists, empty it before we continue */
bouquet->m_services.clear();
}
else
{
/* bouquet doesn't yet exist, create a new one */
if (!db->getBouquet(rootref, bouquet) && bouquet)
{
bouquet->m_services.push_front(bouquetref);
bouquet->flushChanges();
}
/* loading the bouquet seems to be the only way to add it to the bouquet list */
dvbdb->loadBouquet(bouquetname.c_str());
/* and now that it has been added to the list, we can find it */
db->getBouquet(bouquetref, bouquet);
}
if (bouquet)
{
/* fill our fastscan bouquet */
fillBouquet(bouquet, numbered_channels);
}
else
{
eDebug("[eFastScan] failed to create bouquet!");
}
}
else
{
/* single bouquet mode, fill the favourites bouquet */
eBouquet *bouquet = NULL;
eServiceReference favref(eServiceReference::idDVB, eServiceReference::flagDirectory, "FROM BOUQUET \"userbouquet.favourites.tv\" ORDER BY bouquet");
if (!db->getBouquet(favref, bouquet))
{
fillBouquet(bouquet, numbered_channels);
}
}
if (!radio_channels.empty())
{
if (multibouquet)
{
std::string bouquetname = "userbouquet." + bouquetFilename + ".radio";
std::string bouquetquery = "FROM BOUQUET \"" + bouquetname + "\" ORDER BY bouquet";
eServiceReference bouquetref(eServiceReference::idDVB, eServiceReference::flagDirectory, bouquetquery);
bouquetref.setData(0, 2); /* bouquet 'servicetype' radio */
eBouquet *bouquet = NULL;
eServiceReference rootref(eServiceReference::idDVB, eServiceReference::flagDirectory, "FROM BOUQUET \"bouquets.radio\" ORDER BY bouquet");
if (!db->getBouquet(bouquetref, bouquet) && bouquet)
{
/* bouquet already exists, empty it before we continue */
bouquet->m_services.clear();
}
else
{
/* bouquet doesn't yet exist, create a new one */
if (!db->getBouquet(rootref, bouquet) && bouquet)
{
bouquet->m_services.push_front(bouquetref);
bouquet->flushChanges();
}
/* loading the bouquet seems to be the only way to add it to the bouquet list */
dvbdb->loadBouquet(bouquetname.c_str());
/* and now that it has been added to the list, we can find it */
db->getBouquet(bouquetref, bouquet);
}
if (bouquet)
{
/* fill our fastscan bouquet */
fillBouquet(bouquet, radio_channels);
}
else
{
eDebug("[eFastScan] failed to create bouquet!");
}
}
else
{
/* single bouquet, fill the favourites bouquet */
eBouquet *bouquet = NULL;
eServiceReference favref(eServiceReference::idDVB, eServiceReference::flagDirectory, "FROM BOUQUET \"userbouquet.favourites.radio\" ORDER BY bouquet");
if (!db->getBouquet(favref, bouquet))
{
fillBouquet(bouquet, radio_channels);
}
}
}
/* force services to be saved */
if (dvbdb)
{
dvbdb->saveServicelist();
}
scanProgress(100);
scanCompleted(numbered_channels.empty() ? -1 : numbered_channels.size() + radio_channels.size());
}