int eCableScan::nextChannel()
{
ePtr<iDVBFrontend> fe;
m_SDT = NULL;
if (scanChannels.empty())
{
m_channel = NULL;
createBouquets();
return 1;
}
scanProgress(100 - (scanChannels.size() * 90) / totalChannels);
currentScanChannel = scanChannels.front();
scanChannels.pop_front();
if (m_channel->getFrontend(fe))
{
m_channel = NULL;
scanCompleted(-1);
return -1;
}
if (fe->tune(*currentScanChannel))
return nextChannel();
m_SDT = new eTable<ServiceDescriptionSection>;
CONNECT(m_SDT->tableReady, eCableScan::SDTReady);
m_SDT->start(m_demux, eDVBSDTSpec());
return 0;
}
RESULT eDVBScan::startFilter()
{
bool startSDT=true;
int system;
ASSERT(m_demux);
/* only start required filters filter */
if (m_ready_all & readyPAT)
startSDT = m_ready & readyPAT;
// m_ch_current is not set, when eDVBScan is just used for a SDT update
if (!m_ch_current)
{
unsigned int channelFlags;
m_channel->getCurrentFrontendParameters(m_ch_current);
m_ch_current->getFlags(channelFlags);
if (channelFlags & iDVBFrontendParameters::flagOnlyFree)
m_flags |= scanOnlyFree;
}
m_VCT = 0;
m_ch_current->getSystem(system);
if (system == iDVBFrontend::feATSC)
{
m_VCT = new eTable<VirtualChannelTableSection>;
if (m_VCT->start(m_demux, eDVBVCTSpec()))
return -1;
CONNECT(m_VCT->tableReady, eDVBScan::VCTready);
startSDT = false;
}
m_SDT = 0;
if (startSDT && (m_ready_all & readySDT))
{
m_SDT = new eTable<ServiceDescriptionSection>;
int tsid=-1;
if (m_ready & readyPAT && m_ready & validPAT)
{
std::vector<ProgramAssociationSection*>::const_iterator i =
m_PAT->getSections().begin();
ASSERT(i != m_PAT->getSections().end());
tsid = (*i)->getTableIdExtension(); // in PAT this is the transport stream id
m_pat_tsid = eTransportStreamID(tsid);
for (; i != m_PAT->getSections().end(); ++i)
{
const ProgramAssociationSection &pat = **i;
ProgramAssociationConstIterator program = pat.getPrograms()->begin();
for (; program != pat.getPrograms()->end(); ++program)
m_pmts_to_read.insert(std::pair<unsigned short, service>((*program)->getProgramNumber(), service((*program)->getProgramMapPid())));
}
m_PMT = new eTable<ProgramMapSection>;
CONNECT(m_PMT->tableReady, eDVBScan::PMTready);
PMTready(-2);
// KabelBW HACK ... on 618Mhz and 626Mhz the transport stream id in PAT and SDT is different
{
int type;
m_ch_current->getSystem(type);
if (type == iDVBFrontend::feCable)
{
eDVBFrontendParametersCable parm;
m_ch_current->getDVBC(parm);
if ((tsid == 0x00d7 && absdiff(parm.frequency, 618000) < 2000) ||
(tsid == 0x00d8 && absdiff(parm.frequency, 626000) < 2000))
tsid = -1;
}
}
}
if (tsid == -1)
{
if (m_SDT->start(m_demux, eDVBSDTSpec()))
return -1;
}
else if (m_SDT->start(m_demux, eDVBSDTSpec(tsid, true)))
return -1;
CONNECT(m_SDT->tableReady, eDVBScan::SDTready);
}
if (!(m_ready & readyPAT))
{
m_PAT = 0;
if (m_ready_all & readyPAT)
{
m_PAT = new eTable<ProgramAssociationSection>;
if (m_PAT->start(m_demux, eDVBPATSpec(4000)))
return -1;
CONNECT(m_PAT->tableReady, eDVBScan::PATready);
}
m_NIT = 0;
if (m_ready_all & readyNIT)
{
m_NIT = new eTable<NetworkInformationSection>;
if (m_NIT->start(m_demux, eDVBNITSpec(m_networkid)))
return -1;
CONNECT(m_NIT->tableReady, eDVBScan::NITready);
}
m_BAT = 0;
if (m_ready_all & readyBAT)
{
m_BAT = new eTable<BouquetAssociationSection>;
if (m_BAT->start(m_demux, eDVBBATSpec()))
return -1;
CONNECT(m_BAT->tableReady, eDVBScan::BATready);
}
}
return 0;
}