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 <dvbsi++/program_map_section.h>
   9
  10 #include <lib/dvb/idemux.h>
  11 #include <lib/dvb/esection.h>
  12 #include <lib/dvb/db.h>
  13
  14 struct service
  15 {
  16         service(unsigned short pmtPid)
  17                 :pmtPid(pmtPid), serviceType(0xFF), scrambled(false)
  18         {
  19         }
  20         unsigned short pmtPid;
  21         unsigned char serviceType;
  22         bool scrambled;
  23 };
  24
  25 class eDVBScan: public Object, public iObject
  26 {
  27         DECLARE_REF(eDVBScan);
  28                 /* chid helper functions: */
  29
  30                 /* heuristically determine if onid/tsid is valid */
  31         int isValidONIDTSID(int orbital_position, eOriginalNetworkID onid, eTransportStreamID tsid);
  32                 /* build dvb namespace */
  33         eDVBNamespace buildNamespace(eOriginalNetworkID onid, eTransportStreamID tsid, unsigned long hash);
  34
  35                 /* scan resources */
  36         eUsePtr<iDVBChannel> m_channel;
  37         ePtr<iDVBDemux> m_demux;
  38
  39                 /* infrastructure */
  40         void stateChange(iDVBChannel *);
  41         ePtr<eConnection> m_stateChanged_connection;
  42
  43                 /* state handling */
  44         RESULT nextChannel();
  45
  46         RESULT startFilter();
  47         enum { readyPAT=1, readySDT=2, readyNIT=4, readyBAT=8,
  48                validPAT=16, validSDT=32, validNIT=64, validBAT=128};
  49
  50                 /* scan state variables */
  51         int m_channel_state;
  52         int m_ready, m_ready_all;
  53
  54         std::map<eDVBChannelID, ePtr<iDVBFrontendParameters> > m_new_channels;
  55         std::map<eDVBChannelID, ePyObjectWrapper> m_tuner_data; // data read from tuner for every new channel
  56
  57         std::map<eServiceReferenceDVB, ePtr<eDVBService> > m_new_services;
  58         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator m_last_service;
  59
  60         std::map<unsigned short, service> m_pmts_to_read;
  61         std::map<unsigned short, service>::iterator m_pmt_in_progress;
  62         bool m_pmt_running;
  63         bool m_abort_current_pmt;
  64
  65         std::list<ePtr<iDVBFrontendParameters> > m_ch_toScan, m_ch_scanned, m_ch_unavailable;
  66         ePtr<iDVBFrontendParameters> m_ch_current;
  67         eDVBChannelID m_chid_current;
  68         eTransportStreamID m_pat_tsid;
  69
  70         ePtr<eTable<ServiceDescriptionSection> > m_SDT;
  71         ePtr<eTable<NetworkInformationSection> > m_NIT;
  72         ePtr<eTable<BouquetAssociationSection> > m_BAT;
  73         ePtr<eTable<ProgramAssociationSection> > m_PAT;
  74         ePtr<eTable<ProgramMapSection> > m_PMT;
  75
  76         void SDTready(int err);
  77         void NITready(int err);
  78         void BATready(int err);
  79         void PATready(int err);
  80         void PMTready(int err);
  81
  82         void addKnownGoodChannel(const eDVBChannelID &chid, iDVBFrontendParameters *feparm);
  83         void addChannelToScan(const eDVBChannelID &chid, iDVBFrontendParameters *feparm);
  84
  85         int sameChannel(iDVBFrontendParameters *ch1, iDVBFrontendParameters *ch2, bool exact=false) const;
  86
  87         void channelDone();
  88
  89         Signal1<void,int> m_event;
  90         RESULT processSDT(eDVBNamespace dvbnamespace, const ServiceDescriptionSection &sdt);
  91
  92         int m_flags;
  93         bool m_usePAT;
  94         bool m_scan_debug;
  95 public:
  96         eDVBScan(iDVBChannel *channel, bool usePAT=true, bool debug=true );
  97         ~eDVBScan();
  98
  99         enum {
 100                 scanNetworkSearch = 1, scanSearchBAT = 2,
 101                 scanRemoveServices = 4, scanDontRemoveFeeds = 8,
 102                 scanDontRemoveUnscanned = 16,
 103                 clearToScanOnFirstNIT = 32, scanOnlyFree = 64 };
 104
 105         void start(const eSmartPtrList<iDVBFrontendParameters> &known_transponders, int flags);
 106
 107         enum { evtUpdate, evtNewService, evtFinish, evtFail };
 108         RESULT connectEvent(const Slot1<void,int> &event, ePtr<eConnection> &connection);
 109         void insertInto(iDVBChannelList *db, bool dontRemoveNewFlags=false);
 110
 111         void getStats(int &transponders_done, int &transponders_total, int &services);
 112         void getLastServiceName(std::string &name);
 113         RESULT getFrontend(ePtr<iDVBFrontend> &);
 114         RESULT getCurrentTransponder(ePtr<iDVBFrontendParameters> &);
 115         eDVBChannelID getCurrentChannelID() { return m_chid_current; }
 116 };
 117
 118 #endif