lib/dvb/scan.h

   1 #ifndef __lib_dvb_scan_h
   2 #define __lib_dvb_scan_h
   3
   4 #include <dvbsi++/service_description_section.h>
   5 #include <dvbsi++/network_information_section.h>
   6 #include <dvbsi++/bouquet_association_section.h>
   7 #include <dvbsi++/program_association_section.h>
   8 #include <lib/dvb/idemux.h>
   9 #include <lib/dvb/esection.h>
  10 #include <lib/dvb/db.h>
  11
  12 class eDVBScan: public Object, public iObject
  13 {
  14         DECLARE_REF(eDVBScan);
  15                 /* chid helper functions: */
  16
  17                 /* heuristically determine if onid/tsid is valid */
  18         int isValidONIDTSID(int orbital_position, eOriginalNetworkID onid, eTransportStreamID tsid);
  19                 /* build dvb namespace */
  20         eDVBNamespace buildNamespace(eOriginalNetworkID onid, eTransportStreamID tsid, unsigned long hash);
  21
  22                 /* scan resources */
  23         eUsePtr<iDVBChannel> m_channel;
  24         ePtr<iDVBDemux> m_demux;
  25
  26                 /* infrastructure */
  27         void stateChange(iDVBChannel *);
  28         ePtr<eConnection> m_stateChanged_connection;
  29
  30                 /* state handling */
  31         RESULT nextChannel();
  32
  33         RESULT startFilter();
  34         enum { readyPAT=1, readySDT=2, readyNIT=4, readyBAT=8,
  35                validPAT=16, validSDT=32, validNIT=64, validBAT=128};
  36
  37                 /* scan state variables */
  38         int m_channel_state;
  39         int m_ready, m_ready_all;
  40
  41         std::map<eDVBChannelID, ePtr<iDVBFrontendParameters> > m_new_channels;
  42         std::map<eServiceReferenceDVB, ePtr<eDVBService> > m_new_services;
  43         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator m_last_service;
  44
  45         std::list<ePtr<iDVBFrontendParameters> > m_ch_toScan, m_ch_scanned, m_ch_unavailable;
  46         ePtr<iDVBFrontendParameters> m_ch_current;
  47         eDVBChannelID m_chid_current;
  48
  49         ePtr<eTable<ServiceDescriptionSection> > m_SDT;
  50         ePtr<eTable<NetworkInformationSection> > m_NIT;
  51         ePtr<eTable<BouquetAssociationSection> > m_BAT;
  52         ePtr<eTable<ProgramAssociationSection> > m_PAT;
  53
  54         void SDTready(int err);
  55         void NITready(int err);
  56         void BATready(int err);
  57         void PATready(int err);
  58
  59         void addKnownGoodChannel(const eDVBChannelID &chid, iDVBFrontendParameters *feparm);
  60         void addChannelToScan(const eDVBChannelID &chid, iDVBFrontendParameters *feparm);
  61
  62         int sameChannel(iDVBFrontendParameters *ch1, iDVBFrontendParameters *ch2, bool exact=false) const;
  63
  64         void channelDone();
  65
  66         Signal1<void,int> m_event;
  67         RESULT processSDT(eDVBNamespace dvbnamespace, const ServiceDescriptionSection &sdt);
  68
  69         int m_flags;
  70         bool m_usePAT;
  71 public:
  72         eDVBScan(iDVBChannel *channel, bool usePAT=true, bool debug=true );
  73         ~eDVBScan();
  74
  75         enum {
  76                 scanNetworkSearch = 1, scanSearchBAT = 2,
  77                 scanRemoveServices = 4, scanDontRemoveFeeds = 8,
  78                 clearToScanOnFirstNIT = 16 };
  79
  80         void start(const eSmartPtrList<iDVBFrontendParameters> &known_transponders, int flags);
  81
  82         enum { evtUpdate, evtNewService, evtFinish, evtFail };
  83         RESULT connectEvent(const Slot1<void,int> &event, ePtr<eConnection> &connection);
  84         void insertInto(iDVBChannelList *db, bool dontRemoveNewFlags=false);
  85
  86         void getStats(int &transponders_done, int &transponders_total, int &services);
  87         void getLastServiceName(std::string &name);
  88         RESULT getFrontend(ePtr<iDVBFrontend> &);
  89         RESULT getCurrentTransponder(ePtr<iDVBFrontendParameters> &);
  90 };
  91
  92 #endif