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 eDVBScan::eDVBScan(iDVBChannel *channel): m_channel(channel)
18 if (m_channel->getDemux(m_demux))
19 eDebug("scan: failed to allocate demux!");
20 m_channel->connectStateChange(slot(*this, &eDVBScan::stateChange), m_stateChanged_connection);
27 int eDVBScan::isValidONIDTSID(eOriginalNetworkID onid, eTransportStreamID tsid)
38 return tsid != 0x00B0;
40 return tsid != 0x07E8;
46 eDVBNamespace eDVBScan::buildNamespace(eOriginalNetworkID onid, eTransportStreamID tsid, unsigned long hash)
48 // on valid ONIDs, ignore frequency ("sub network") part
49 if (isValidONIDTSID(onid, tsid))
51 return eDVBNamespace(hash);
54 void eDVBScan::stateChange(iDVBChannel *ch)
57 if (ch->getState(state))
59 if (m_channel_state == state)
62 if (state == iDVBChannel::state_ok)
65 m_channel_state = state;
66 } else if (state == iDVBChannel::state_unavailable)
68 m_ch_unavailable.push_back(m_ch_current);
73 RESULT eDVBScan::nextChannel()
75 ePtr<iDVBFrontend> fe;
77 m_SDT = 0; m_BAT = 0; m_NIT = 0;
80 if (m_ch_toScan.empty())
82 eDebug("no channels left to scan.");
83 eDebug("%d channels scanned, %d were unavailable.",
84 m_ch_scanned.size(), m_ch_unavailable.size());
85 eDebug("%d channels in database.", m_new_channels.size());
90 m_ch_current = m_ch_toScan.front();
91 m_ch_toScan.pop_front();
93 if (m_channel->getFrontend(fe))
96 m_channel_state = iDVBChannel::state_idle;
97 if (fe->tune(*m_ch_current))
104 RESULT eDVBScan::startFilter()
108 m_SDT = new eTable<ServiceDescriptionTable>();
109 if (m_SDT->start(m_demux, eDVBSDTSpec()))
111 CONNECT(m_SDT->tableReady, eDVBScan::SDTready);
114 m_NIT = new eTable<NetworkInformationTable>();
115 if (m_NIT->start(m_demux, eDVBNITSpec()))
117 CONNECT(m_NIT->tableReady, eDVBScan::NITready);
119 m_BAT = new eTable<BouquetAssociationTable>();
120 if (m_BAT->start(m_demux, eDVBBATSpec()))
122 CONNECT(m_BAT->tableReady, eDVBScan::BATready);
127 void eDVBScan::SDTready(int err)
136 void eDVBScan::NITready(int err)
138 eDebug("got nit, err %d", err);
145 void eDVBScan::BATready(int err)
154 void eDVBScan::addChannel(const eDVBChannelID &chid, iDVBFrontendParameters *feparm)
156 /* add it to the list of known channels. */
158 m_new_channels.insert(std::pair<eDVBChannelID,ePtr<iDVBFrontendParameters> >(chid, feparm));
160 /* check if we don't already have that channel ... */
162 /* ... in the list of channels to scan */
163 for (std::list<ePtr<iDVBFrontendParameters> >::const_iterator i(m_ch_toScan.begin()); i != m_ch_toScan.end(); ++i)
164 if (sameChannel(*i, feparm))
167 /* ... in the list of successfully scanned channels */
168 for (std::list<ePtr<iDVBFrontendParameters> >::const_iterator i(m_ch_scanned.begin()); i != m_ch_scanned.end(); ++i)
169 if (sameChannel(*i, feparm))
172 /* ... in the list of unavailable channels */
173 for (std::list<ePtr<iDVBFrontendParameters> >::const_iterator i(m_ch_unavailable.begin()); i != m_ch_unavailable.end(); ++i)
174 if (sameChannel(*i, feparm))
177 /* ... on the current channel */
178 if (sameChannel(m_ch_current, feparm))
181 /* otherwise, add it to the todo list. */
182 m_ch_toScan.push_back(feparm);
185 int eDVBScan::sameChannel(iDVBFrontendParameters *ch1, iDVBFrontendParameters *ch2) const
188 if (ch1->calculateDifference(ch2, diff))
190 if (diff < 4000) // more than 4mhz difference?
195 void eDVBScan::channelDone()
197 if (m_ready & validSDT)
199 unsigned long hash = 0;
200 m_ch_current->getHash(hash);
202 eDVBNamespace dvbnamespace = buildNamespace(
203 (**m_SDT->getSections().begin()).getOriginalNetworkId(),
204 (**m_SDT->getSections().begin()).getTransportStreamId(),
208 ServiceDescriptionTableConstIterator i;
209 for (i = m_SDT->getSections().begin(); i != m_SDT->getSections().end(); ++i)
210 processSDT(dvbnamespace, **i);
211 m_ready &= ~validSDT;
214 if (m_ready & validNIT)
216 eDebug("dumping NIT");
217 NetworkInformationTableConstIterator i;
218 for (i = m_NIT->getSections().begin(); i != m_NIT->getSections().end(); ++i)
220 const TransportStreamInfoVector &tsinfovec = *(*i)->getTsInfo();
222 for (TransportStreamInfoConstIterator tsinfo(tsinfovec.begin());
223 tsinfo != tsinfovec.end(); ++tsinfo)
225 eDebug("TSID: %04x ONID: %04x", (*tsinfo)->getTransportStreamId(),
226 (*tsinfo)->getOriginalNetworkId());
228 eOriginalNetworkID onid = (*tsinfo)->getOriginalNetworkId();
229 eTransportStreamID tsid = (*tsinfo)->getTransportStreamId();
231 for (DescriptorConstIterator desc = (*tsinfo)->getDescriptors()->begin();
232 desc != (*tsinfo)->getDescriptors()->end(); ++desc)
234 switch ((*desc)->getTag())
236 // case SERVICE_LIST_DESCRIPTOR:
237 case SATELLITE_DELIVERY_SYSTEM_DESCRIPTOR:
239 SatelliteDeliverySystemDescriptor &d = (SatelliteDeliverySystemDescriptor&)**desc;
240 eDebug("%d kHz, %d%d%d.%d%c %s MOD:%d %d symb/s, fec %d",
242 (d.getOrbitalPosition()>>12)&0xF,
243 (d.getOrbitalPosition()>>8)&0xF,
244 (d.getOrbitalPosition()>>4)&0xF,
245 d.getOrbitalPosition()&0xF, d.getWestEastFlag()?'E':'W',
246 d.getPolarization() ? "hor" : "vert",
247 d.getModulation(), d.getSymbolRate(), d.getFecInner());
249 /* some sanity checking: below 100MHz is invalid */
250 if (d.getFrequency() < 10000)
253 ePtr<eDVBFrontendParameters> feparm = new eDVBFrontendParameters;
254 eDVBFrontendParametersSatellite sat;
256 feparm->setDVBS(sat);
257 unsigned long hash=0;
258 feparm->getHash(hash);
260 eDVBNamespace ns = buildNamespace(onid, tsid, hash);
263 eDVBChannelID(ns, tsid, onid),
268 eDebug("descr<%x>", (*desc)->getTag());
275 m_ready &= ~validNIT;
278 if ((m_ready & readyAll) != readyAll)
280 eDebug("channel done!");
281 m_ch_scanned.push_back(m_ch_current);
285 void eDVBScan::start(const std::list<ePtr<iDVBFrontendParameters> > &known_transponders)
288 m_ch_scanned.clear();
289 m_ch_unavailable.clear();
290 m_new_channels.clear();
291 m_new_services.clear();
292 m_ch_toScan.insert(m_ch_toScan.end(), known_transponders.begin(), known_transponders.end());
296 void eDVBScan::insertInto(eDVBDB *db)
298 for (std::map<eDVBChannelID, ePtr<iDVBFrontendParameters> >::const_iterator
299 ch(m_new_channels.begin()); ch != m_new_channels.end(); ++ch)
300 db->addChannelToList(ch->first, ch->second);
301 for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::const_iterator
302 service(m_new_services.begin()); service != m_new_services.end(); ++service)
304 ePtr<eDVBService> dvb_service;
305 if (!db->getService(service->first, dvb_service))
306 *dvb_service = *service->second;
308 db->addService(service->first, service->second);
312 RESULT eDVBScan::processSDT(eDVBNamespace dvbnamespace, const ServiceDescriptionTable &sdt)
314 const ServiceDescriptionVector &services = *sdt.getDescriptions();
315 eDebug("ONID: %04x", sdt.getOriginalNetworkId());
316 eDVBChannelID chid(dvbnamespace, sdt.getTransportStreamId(), sdt.getOriginalNetworkId());
318 for (ServiceDescriptionConstIterator s(services.begin()); s != services.end(); ++s)
320 eDebugNoNewLine("SID %04x: ", (*s)->getServiceId());
322 eServiceReferenceDVB ref;
323 ePtr<eDVBService> service = new eDVBService;
326 ref.setServiceID((*s)->getServiceId());
328 for (DescriptorConstIterator desc = (*s)->getDescriptors()->begin();
329 desc != (*s)->getDescriptors()->end(); ++desc)
330 if ((*desc)->getTag() == SERVICE_DESCRIPTOR)
331 ref.setServiceType(((ServiceDescriptor&)**desc).getServiceType());
333 for (DescriptorConstIterator desc = (*s)->getDescriptors()->begin();
334 desc != (*s)->getDescriptors()->end(); ++desc)
336 switch ((*desc)->getTag())
338 case SERVICE_DESCRIPTOR:
340 ServiceDescriptor &d = (ServiceDescriptor&)**desc;
341 eDebug("name '%s', provider_name '%s'", d.getServiceName().c_str(), d.getServiceProviderName().c_str());
342 service->m_service_name = d.getServiceName();
343 service->m_provider_name = d.getServiceProviderName();
346 case CA_IDENTIFIER_DESCRIPTOR:
348 CaIdentifierDescriptor &d = (CaIdentifierDescriptor&)**desc;
349 const CaSystemIdVector &caids = *d.getCaSystemIds();
350 eDebugNoNewLine("CA ");
351 for (CaSystemIdVector::const_iterator i(caids.begin()); i != caids.end(); ++i)
353 eDebugNoNewLine("%04x ", *i);
354 service->m_ca.insert(*i);
360 eDebug("descr<%x>", (*desc)->getTag());
365 m_new_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(ref, service));
370 RESULT eDVBScan::connectEvent(const Slot1<void,int> &event, ePtr<eConnection> &connection)
372 connection = new eConnection(this, m_event.connect(event));