lib/dvb/pmt.h

   1 #ifndef __lib_dvb_dvbmid_h
   2 #define __lib_dvb_dvbmid_h
   3
   4 #include <map>
   5 #include <lib/dvb/idvb.h>
   6 #include <lib/dvb/dvb.h>
   7 #include <lib/dvb/idemux.h>
   8 #include <lib/dvb/esection.h>
   9 #include <lib/python/python.h>
  10 #include <dvbsi++/program_map_section.h>
  11 #include <dvbsi++/program_association_section.h>
  12
  13 #include <sys/socket.h>
  14 #include <sys/types.h>
  15 #include <sys/un.h>
  16 #include <unistd.h>
  17 #include <fcntl.h>
  18
  19 class eDVBCAService;
  20 class eDVBScan;
  21
  22 typedef std::map<eServiceReferenceDVB, eDVBCAService*> CAServiceMap;
  23
  24 class eDVBCAService: public Object
  25 {
  26         eServiceReferenceDVB m_service;
  27         uint8_t m_used_demux[32];
  28         unsigned int m_prev_build_hash;
  29
  30         int m_sock, m_clilen;
  31         struct sockaddr_un m_servaddr;
  32         unsigned int m_sendstate;
  33         unsigned char m_capmt[2048];
  34         eTimer m_retryTimer;
  35         void sendCAPMT();
  36         void Connect();
  37
  38         static CAServiceMap exist;
  39         eDVBCAService();
  40         ~eDVBCAService();
  41 public:
  42         static RESULT register_service( const eServiceReferenceDVB &ref, int demux_nums[2], eDVBCAService *&caservice );
  43         static RESULT unregister_service( const eServiceReferenceDVB &ref, int demux_nums[2], eTable<ProgramMapSection> *ptr );
  44         void buildCAPMT(eTable<ProgramMapSection> *ptr);
  45 };
  46
  47 class eDVBServicePMTHandler: public Object
  48 {
  49         friend class eDVBCAService;
  50         eServiceReferenceDVB m_reference;
  51         ePtr<eDVBService> m_service;
  52
  53         int m_last_channel_state;
  54         eDVBCAService *m_ca_servicePtr;
  55         eDVBScan *m_dvb_scan; // for sdt scan
  56
  57         eAUTable<eTable<ProgramMapSection> > m_PMT;
  58         eAUTable<eTable<ProgramAssociationSection> > m_PAT;
  59
  60         eUsePtr<iDVBChannel> m_channel;
  61         eUsePtr<iDVBPVRChannel> m_pvr_channel;
  62         ePtr<eDVBResourceManager> m_resourceManager;
  63         ePtr<iDVBDemux> m_demux;
  64
  65         void channelStateChanged(iDVBChannel *);
  66         ePtr<eConnection> m_channelStateChanged_connection;
  67         void channelEvent(iDVBChannel *, int event);
  68         ePtr<eConnection> m_channelEvent_connection;
  69         void SDTScanEvent(int);
  70         ePtr<eConnection> m_scan_event_connection;
  71
  72         void PMTready(int error);
  73         void PATready(int error);
  74
  75         int m_pmt_pid;
  76
  77         int m_use_decode_demux;
  78         uint8_t m_decode_demux_num;
  79 public:
  80         eDVBServicePMTHandler();
  81         ~eDVBServicePMTHandler();
  82
  83         enum
  84         {
  85                 eventNoResources,  // a requested resource couldn't be allocated
  86                 eventTuneFailed,   // tune failed
  87                 eventNoPAT,        // no pat could be received (timeout)
  88                 eventNoPATEntry,   // no pat entry for the corresponding SID could be found
  89                 eventNoPMT,        // no pmt could be received (timeout)
  90                 eventNewProgramInfo, // we just received a PMT
  91                 eventTuned,        // a channel was sucessfully (re-)tuned in, you may start additional filters now
  92
  93                 eventSOF,          // seek pre start
  94                 eventEOF,          // a file playback did end
  95         };
  96
  97         Signal1<void,int> serviceEvent;
  98
  99         struct videoStream
 100         {
 101                 int pid;
 102                 int component_tag;
 103                 enum { vtMPEG2, vtMPEG4_H264 };
 104                 int type;
 105         };
 106
 107         struct audioStream
 108         {
 109                 int pid;
 110                 enum { atMPEG, atAC3, atDTS, atAAC };
 111                 int type; // mpeg2, ac3, dts, ...
 112
 113                 int component_tag;
 114                 std::string language_code; /* iso-639, if available. */
 115         };
 116
 117         struct subtitleStream
 118         {
 119                 int pid;
 120                 int subtitling_type;    /*  see ETSI EN 300 468 table 26 component_type
 121                                                                         when stream_content is 0x03
 122                                                                         0x10..0x13, 0x20..0x23 is used for dvb subtitles
 123                                                                         0x01 is used for teletext subtitles */
 124                 union
 125                 {
 126                         int composition_page_id;  // used for dvb subtitles
 127                         int teletext_page_number;  // used for teletext subtitles
 128                 };
 129                 union
 130                 {
 131                         int ancillary_page_id;  // used for dvb subtitles
 132                         int teletext_magazine_number;  // used for teletext subtitles
 133                 };
 134                 std::string language_code;
 135                 bool operator<(const subtitleStream &s) const
 136                 {
 137                         if (pid != s.pid)
 138                                 return pid < s.pid;
 139                         if (teletext_page_number != s.teletext_page_number)
 140                                 return teletext_page_number < s.teletext_page_number;
 141                         return teletext_magazine_number < s.teletext_magazine_number;
 142                 }
 143         };
 144
 145         struct program
 146         {
 147                 std::vector<videoStream> videoStreams;
 148                 std::vector<audioStream> audioStreams;
 149                 std::vector<subtitleStream> subtitleStreams;
 150                 std::set<uint16_t> caids;
 151                 int pcrPid;
 152                 int pmtPid;
 153                 int textPid;
 154                 bool isCrypted() { return !caids.empty(); }
 155         };
 156
 157         int getProgramInfo(struct program &program);
 158         int getDataDemux(ePtr<iDVBDemux> &demux);
 159         int getDecodeDemux(ePtr<iDVBDemux> &demux);
 160         PyObject *getCaIds();
 161
 162         int getPVRChannel(ePtr<iDVBPVRChannel> &pvr_channel);
 163         int getServiceReference(eServiceReferenceDVB &service) { service = m_reference; return 0; }
 164         int getService(ePtr<eDVBService> &service) { service = m_service; return 0; }
 165         int getPMT(ePtr<eTable<ProgramMapSection> > &ptr) { return m_PMT.getCurrent(ptr); }
 166         int getChannel(eUsePtr<iDVBChannel> &channel);
 167         void resetCachedProgram() { m_have_cached_program = false; }
 168
 169         int tune(eServiceReferenceDVB &ref, int use_decode_demux, eCueSheet *sg=0);
 170         void free();
 171 private:
 172         bool m_have_cached_program;
 173         program m_cached_program;
 174 };
 175
 176 #endif