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