lib/dvb/scan.h

   1 #ifndef __lib_dvb_scan_h
   2 #define __lib_dvb_scan_h
   3
   4 #include <dvbsi++/network_information_section.h>
   5 #include <dvbsi++/service_description_section.h>
   6 #include <dvbsi++/bouquet_association_section.h>
   7 #include <lib/dvb/idemux.h>
   8 #include <lib/dvb/esection.h>
   9 #include <lib/dvb/db.h>
  10
  11 class eDVBScan: public Object, public iObject
  12 {
  13 DECLARE_REF(eDVBScan);
  14 private:
  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 { readySDT=1, readyNIT=2, readyBAT=4,
  35                validSDT=8, validNIT=16, validBAT=32};
  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
  44         std::list<ePtr<iDVBFrontendParameters> > m_ch_toScan, m_ch_scanned, m_ch_unavailable;
  45         ePtr<iDVBFrontendParameters> m_ch_current;
  46         eDVBChannelID m_chid_current;
  47
  48         ePtr<eTable<ServiceDescriptionSection> > m_SDT;
  49         ePtr<eTable<NetworkInformationSection> > m_NIT;
  50         ePtr<eTable<BouquetAssociationSection> > m_BAT;
  51
  52         void SDTready(int err);
  53         void NITready(int err);
  54         void BATready(int err);
  55
  56         void addKnownGoodChannel(const eDVBChannelID &chid, iDVBFrontendParameters *feparm);
  57         void addChannelToScan(const eDVBChannelID &chid, iDVBFrontendParameters *feparm);
  58         int  sameChannel(iDVBFrontendParameters *ch1, iDVBFrontendParameters *ch2) const;
  59
  60         void channelDone();
  61
  62         Signal1<void,int> m_event;
  63         RESULT processSDT(eDVBNamespace dvbnamespace, const ServiceDescriptionSection &sdt);
  64
  65         int m_flags;
  66 public:
  67         eDVBScan(iDVBChannel *channel);
  68         ~eDVBScan();
  69
  70         enum { scanNetworkSearch = 1, scanSearchBAT = 2 };
  71         void start(const eSmartPtrList<iDVBFrontendParameters> &known_transponders, int flags);
  72
  73         enum { evtUpdate, evtFinish, evtFail };
  74   RESULT connectEvent(const Slot1<void,int> &event, ePtr<eConnection> &connection);
  75         void insertInto(iDVBChannelList *db);
  76
  77         void getStats(int &transponders_done, int &transponders_total, int &services);
  78 };
  79
  80 #endif