1 #include <lib/dvb/idvb.h>
2 #include <lib/dvb_si/sdt.h>
3 #include <lib/dvb_si/nit.h>
4 #include <lib/dvb_si/bat.h>
5 #include <lib/dvb_si/descriptor_tag.h>
6 #include <lib/dvb_si/service_descriptor.h>
7 #include <lib/dvb_si/satellite_delivery_system_descriptor.h>
8 #include <lib/dvb_si/ca_identifier_descriptor.h>
9 #include <lib/dvb/specs.h>
10 #include <lib/dvb/esection.h>
11 #include <lib/dvb/scan.h>
12 #include <lib/dvb/frontend.h>
13 #include <lib/base/eerror.h>
16 #define SCAN_eDebug(x...)
17 #define SCAN_eDebugNoNewLine(x...)
21 eDVBScan::eDVBScan(iDVBChannel *channel): m_channel(channel)
23 if (m_channel->getDemux(m_demux))
24 SCAN_eDebug("scan: failed to allocate demux!");
25 m_channel->connectStateChange(slot(*this, &eDVBScan::stateChange), m_stateChanged_connection);
32 int eDVBScan::isValidONIDTSID(eOriginalNetworkID onid, eTransportStreamID tsid)
43 return tsid != 0x00B0;
45 return tsid != 0x07E8;
51 eDVBNamespace eDVBScan::buildNamespace(eOriginalNetworkID onid, eTransportStreamID tsid, unsigned long hash)
53 // on valid ONIDs, ignore frequency ("sub network") part
54 if (isValidONIDTSID(onid, tsid))
56 return eDVBNamespace(hash);
59 void eDVBScan::stateChange(iDVBChannel *ch)
62 if (ch->getState(state))
64 if (m_channel_state == state)
67 if (state == iDVBChannel::state_ok)
70 m_channel_state = state;
71 } else if (state == iDVBChannel::state_unavailable)
73 m_ch_unavailable.push_back(m_ch_current);
78 RESULT eDVBScan::nextChannel()
80 ePtr<iDVBFrontend> fe;
82 m_SDT = 0; m_BAT = 0; m_NIT = 0;
85 if (m_ch_toScan.empty())
87 eDebug("no channels left to scan.");
88 eDebug("%d channels scanned, %d were unavailable.",
89 m_ch_scanned.size(), m_ch_unavailable.size());
90 eDebug("%d channels in database.", m_new_channels.size());
95 m_ch_current = m_ch_toScan.front();
96 m_ch_toScan.pop_front();
98 if (m_channel->getFrontend(fe))
101 m_channel_state = iDVBChannel::state_idle;
102 if (fe->tune(*m_ch_current))
109 RESULT eDVBScan::startFilter()
113 m_SDT = new eTable<ServiceDescriptionTable>();
114 if (m_SDT->start(m_demux, eDVBSDTSpec()))
116 CONNECT(m_SDT->tableReady, eDVBScan::SDTready);
119 m_NIT = new eTable<NetworkInformationTable>();
120 if (m_NIT->start(m_demux, eDVBNITSpec()))
122 CONNECT(m_NIT->tableReady, eDVBScan::NITready);
124 m_BAT = new eTable<BouquetAssociationTable>();
125 if (m_BAT->start(m_demux, eDVBBATSpec()))
127 CONNECT(m_BAT->tableReady, eDVBScan::BATready);
132 void eDVBScan::SDTready(int err)
134 SCAN_eDebug("got sdt");
141 void eDVBScan::NITready(int err)
143 SCAN_eDebug("got nit, err %d", err);
150 void eDVBScan::BATready(int err)
152 SCAN_eDebug("got bat");
159 void eDVBScan::addChannel(const eDVBChannelID &chid, iDVBFrontendParameters *feparm)
161 /* add it to the list of known channels. */
163 m_new_channels.insert(std::pair<eDVBChannelID,ePtr<iDVBFrontendParameters> >(chid, feparm));
165 /* check if we don't already have that channel ... */
167 /* ... in the list of channels to scan */
168 for (std::list<ePtr<iDVBFrontendParameters> >::const_iterator i(m_ch_toScan.begin()); i != m_ch_toScan.end(); ++i)
169 if (sameChannel(*i, feparm))
172 /* ... in the list of successfully scanned channels */
173 for (std::list<ePtr<iDVBFrontendParameters> >::const_iterator i(m_ch_scanned.begin()); i != m_ch_scanned.end(); ++i)
174 if (sameChannel(*i, feparm))
177 /* ... in the list of unavailable channels */
178 for (std::list<ePtr<iDVBFrontendParameters> >::const_iterator i(m_ch_unavailable.begin()); i != m_ch_unavailable.end(); ++i)
179 if (sameChannel(*i, feparm))
182 /* ... on the current channel */
183 if (sameChannel(m_ch_current, feparm))
186 /* otherwise, add it to the todo list. */
187 m_ch_toScan.push_back(feparm);
190 int eDVBScan::sameChannel(iDVBFrontendParameters *ch1, iDVBFrontendParameters *ch2) const
193 if (ch1->calculateDifference(ch2, diff))
195 if (diff < 4000) // more than 4mhz difference?
200 void eDVBScan::channelDone()
202 if (m_ready & validSDT)
204 unsigned long hash = 0;
205 m_ch_current->getHash(hash);
207 eDVBNamespace dvbnamespace = buildNamespace(
208 (**m_SDT->getSections().begin()).getOriginalNetworkId(),
209 (**m_SDT->getSections().begin()).getTransportStreamId(),
212 SCAN_eDebug("SDT: ");
213 ServiceDescriptionTableConstIterator i;
214 for (i = m_SDT->getSections().begin(); i != m_SDT->getSections().end(); ++i)
215 processSDT(dvbnamespace, **i);
216 m_ready &= ~validSDT;
219 if (m_ready & validNIT)
221 SCAN_eDebug("dumping NIT");
222 NetworkInformationTableConstIterator i;
223 for (i = m_NIT->getSections().begin(); i != m_NIT->getSections().end(); ++i)
225 const TransportStreamInfoVector &tsinfovec = *(*i)->getTsInfo();
227 for (TransportStreamInfoConstIterator tsinfo(tsinfovec.begin());
228 tsinfo != tsinfovec.end(); ++tsinfo)
230 SCAN_eDebug("TSID: %04x ONID: %04x", (*tsinfo)->getTransportStreamId(),
231 (*tsinfo)->getOriginalNetworkId());
233 eOriginalNetworkID onid = (*tsinfo)->getOriginalNetworkId();
234 eTransportStreamID tsid = (*tsinfo)->getTransportStreamId();
236 for (DescriptorConstIterator desc = (*tsinfo)->getDescriptors()->begin();
237 desc != (*tsinfo)->getDescriptors()->end(); ++desc)
239 switch ((*desc)->getTag())
241 // case SERVICE_LIST_DESCRIPTOR:
242 case SATELLITE_DELIVERY_SYSTEM_DESCRIPTOR:
244 SatelliteDeliverySystemDescriptor &d = (SatelliteDeliverySystemDescriptor&)**desc;
245 SCAN_eDebug("%d kHz, %d%d%d.%d%c %s MOD:%d %d symb/s, fec %d",
247 (d.getOrbitalPosition()>>12)&0xF,
248 (d.getOrbitalPosition()>>8)&0xF,
249 (d.getOrbitalPosition()>>4)&0xF,
250 d.getOrbitalPosition()&0xF, d.getWestEastFlag()?'E':'W',
251 d.getPolarization() ? "hor" : "vert",
252 d.getModulation(), d.getSymbolRate(), d.getFecInner());
254 /* some sanity checking: below 100MHz is invalid */
255 if (d.getFrequency() < 10000)
258 ePtr<eDVBFrontendParameters> feparm = new eDVBFrontendParameters;
259 eDVBFrontendParametersSatellite sat;
261 feparm->setDVBS(sat);
262 unsigned long hash=0;
263 feparm->getHash(hash);
265 eDVBNamespace ns = buildNamespace(onid, tsid, hash);
268 eDVBChannelID(ns, tsid, onid),
273 SCAN_eDebug("descr<%x>", (*desc)->getTag());
280 m_ready &= ~validNIT;
283 if ((m_ready & readyAll) != readyAll)
285 SCAN_eDebug("channel done!");
286 m_ch_scanned.push_back(m_ch_current);
290 void eDVBScan::start(const std::list<ePtr<iDVBFrontendParameters> > &known_transponders)
293 m_ch_scanned.clear();
294 m_ch_unavailable.clear();
295 m_new_channels.clear();
296 m_new_services.clear();
297 m_ch_toScan.insert(m_ch_toScan.end(), known_transponders.begin(), known_transponders.end());
301 void eDVBScan::insertInto(eDVBDB *db)
303 for (std::map<eDVBChannelID, ePtr<iDVBFrontendParameters> >::const_iterator
304 ch(m_new_channels.begin()); ch != m_new_channels.end(); ++ch)
305 db->addChannelToList(ch->first, ch->second);
306 for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::const_iterator
307 service(m_new_services.begin()); service != m_new_services.end(); ++service)
309 ePtr<eDVBService> dvb_service;
310 if (!db->getService(service->first, dvb_service))
311 *dvb_service = *service->second;
313 db->addService(service->first, service->second);
317 RESULT eDVBScan::processSDT(eDVBNamespace dvbnamespace, const ServiceDescriptionTable &sdt)
319 const ServiceDescriptionVector &services = *sdt.getDescriptions();
320 SCAN_eDebug("ONID: %04x", sdt.getOriginalNetworkId());
321 eDVBChannelID chid(dvbnamespace, sdt.getTransportStreamId(), sdt.getOriginalNetworkId());
323 for (ServiceDescriptionConstIterator s(services.begin()); s != services.end(); ++s)
325 SCAN_eDebugNoNewLine("SID %04x: ", (*s)->getServiceId());
327 eServiceReferenceDVB ref;
328 ePtr<eDVBService> service = new eDVBService;
331 ref.setServiceID((*s)->getServiceId());
333 for (DescriptorConstIterator desc = (*s)->getDescriptors()->begin();
334 desc != (*s)->getDescriptors()->end(); ++desc)
335 if ((*desc)->getTag() == SERVICE_DESCRIPTOR)
336 ref.setServiceType(((ServiceDescriptor&)**desc).getServiceType());
338 for (DescriptorConstIterator desc = (*s)->getDescriptors()->begin();
339 desc != (*s)->getDescriptors()->end(); ++desc)
341 switch ((*desc)->getTag())
343 case SERVICE_DESCRIPTOR:
345 ServiceDescriptor &d = (ServiceDescriptor&)**desc;
346 SCAN_eDebug("name '%s', provider_name '%s'", d.getServiceName().c_str(), d.getServiceProviderName().c_str());
347 service->m_service_name = d.getServiceName();
348 service->m_provider_name = d.getServiceProviderName();
351 case CA_IDENTIFIER_DESCRIPTOR:
353 CaIdentifierDescriptor &d = (CaIdentifierDescriptor&)**desc;
354 const CaSystemIdVector &caids = *d.getCaSystemIds();
355 SCAN_eDebugNoNewLine("CA ");
356 for (CaSystemIdVector::const_iterator i(caids.begin()); i != caids.end(); ++i)
358 SCAN_eDebugNoNewLine("%04x ", *i);
359 service->m_ca.insert(*i);
365 SCAN_eDebug("descr<%x>", (*desc)->getTag());
370 m_new_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(ref, service));
375 RESULT eDVBScan::connectEvent(const Slot1<void,int> &event, ePtr<eConnection> &connection)
377 connection = new eConnection(this, m_event.connect(event));