lib/dvb/pmt.h

   1 #ifndef __lib_dvb_dvbmid_h
   2 #define __lib_dvb_dvbmid_h
   3
   4 #ifndef SWIG
   5 #include <map>
   6 #include <lib/dvb/idvb.h>
   7 #include <lib/dvb/dvb.h>
   8 #include <lib/dvb/idemux.h>
   9 #include <lib/dvb/esection.h>
  10 #include <lib/python/python.h>
  11 #include <dvbsi++/program_map_section.h>
  12 #include <dvbsi++/program_association_section.h>
  13
  14 #include <sys/socket.h>
  15 #include <sys/types.h>
  16 #include <sys/un.h>
  17 #include <unistd.h>
  18 #include <fcntl.h>
  19
  20 class eDVBCAService;
  21 class eDVBScan;
  22
  23 struct channel_data: public Object
  24 {
  25         ePtr<eDVBChannel> m_channel;
  26         ePtr<eConnection> m_stateChangedConn;
  27         int m_prevChannelState;
  28         int m_dataDemux;
  29 };
  30
  31 // TODO .. put all static stuff into a 'eDVBCAServiceHandler class'
  32
  33 typedef std::map<eServiceReferenceDVB, eDVBCAService*> CAServiceMap;
  34 typedef std::map<iDVBChannel*, channel_data*> ChannelMap;
  35
  36 class eDVBCAService: public Object
  37 {
  38         eSocketNotifier *m_sn;
  39         eServiceReferenceDVB m_service;
  40         uint8_t m_used_demux[32];
  41         unsigned int m_prev_build_hash;
  42
  43         int m_sock, m_clilen;
  44         struct sockaddr_un m_servaddr;
  45         unsigned int m_sendstate;
  46         unsigned char m_capmt[2048];
  47         eTimer m_retryTimer;
  48         void sendCAPMT();
  49         void Connect();
  50         void socketCB(int what);
  51
  52         static void DVBChannelAdded(eDVBChannel*);
  53         static void DVBChannelStateChanged(iDVBChannel*);
  54         static CAServiceMap exist;
  55         static ChannelMap exist_channels;
  56         static ePtr<eConnection> m_chanAddedConn;
  57         static channel_data *getChannelData(eDVBChannelID &chid);
  58
  59         eDVBCAService();
  60         ~eDVBCAService();
  61 public:
  62         static void registerChannelCallback(eDVBResourceManager *res_mgr);
  63         static RESULT register_service( const eServiceReferenceDVB &ref, int demux_nums[2], eDVBCAService *&caservice );
  64         static RESULT unregister_service( const eServiceReferenceDVB &ref, int demux_nums[2], eTable<ProgramMapSection> *ptr );
  65         void buildCAPMT(eTable<ProgramMapSection> *ptr);
  66 };
  67
  68 #endif
  69
  70 class eDVBServicePMTHandler: public Object
  71 {
  72 #ifndef SWIG
  73         friend class eDVBCAService;
  74         eServiceReferenceDVB m_reference;
  75         ePtr<eDVBService> m_service;
  76
  77         int m_last_channel_state;
  78         eDVBCAService *m_ca_servicePtr;
  79         eDVBScan *m_dvb_scan; // for sdt scan
  80
  81         eAUTable<eTable<ProgramMapSection> > m_PMT;
  82         eAUTable<eTable<ProgramAssociationSection> > m_PAT;
  83
  84         eUsePtr<iDVBChannel> m_channel;
  85         eUsePtr<iDVBPVRChannel> m_pvr_channel;
  86         ePtr<eDVBResourceManager> m_resourceManager;
  87         ePtr<iDVBDemux> m_demux;
  88
  89         void channelStateChanged(iDVBChannel *);
  90         ePtr<eConnection> m_channelStateChanged_connection;
  91         void channelEvent(iDVBChannel *, int event);
  92         ePtr<eConnection> m_channelEvent_connection;
  93         void SDTScanEvent(int);
  94         ePtr<eConnection> m_scan_event_connection;
  95
  96         void PMTready(int error);
  97         void PATready(int error);
  98
  99         int m_pmt_pid;
 100
 101         int m_use_decode_demux;
 102         uint8_t m_decode_demux_num;
 103 public:
 104         eDVBServicePMTHandler();
 105         ~eDVBServicePMTHandler();
 106 #endif
 107
 108 #ifdef SWIG
 109 private:
 110         eDVBServicePMTHandler();
 111 public:
 112 #endif
 113
 114         enum
 115         {
 116                 eventNoResources,  // a requested resource couldn't be allocated
 117                 eventTuneFailed,   // tune failed
 118                 eventNoPAT,        // no pat could be received (timeout)
 119                 eventNoPATEntry,   // no pat entry for the corresponding SID could be found
 120                 eventNoPMT,        // no pmt could be received (timeout)
 121                 eventNewProgramInfo, // we just received a PMT
 122                 eventTuned,        // a channel was sucessfully (re-)tuned in, you may start additional filters now
 123
 124                 eventSOF,          // seek pre start
 125                 eventEOF,          // a file playback did end
 126         };
 127 #ifndef SWIG
 128         Signal1<void,int> serviceEvent;
 129
 130         struct videoStream
 131         {
 132                 int pid;
 133                 int component_tag;
 134                 enum { vtMPEG2, vtMPEG4_H264 };
 135                 int type;
 136         };
 137
 138         struct audioStream
 139         {
 140                 int pid;
 141                 enum { atMPEG, atAC3, atDTS, atAAC };
 142                 int type; // mpeg2, ac3, dts, ...
 143
 144                 int component_tag;
 145                 std::string language_code; /* iso-639, if available. */
 146         };
 147
 148         struct subtitleStream
 149         {
 150                 int pid;
 151                 int subtitling_type;    /*  see ETSI EN 300 468 table 26 component_type
 152                                                                         when stream_content is 0x03
 153                                                                         0x10..0x13, 0x20..0x23 is used for dvb subtitles
 154                                                                         0x01 is used for teletext subtitles */
 155                 union
 156                 {
 157                         int composition_page_id;  // used for dvb subtitles
 158                         int teletext_page_number;  // used for teletext subtitles
 159                 };
 160                 union
 161                 {
 162                         int ancillary_page_id;  // used for dvb subtitles
 163                         int teletext_magazine_number;  // used for teletext subtitles
 164                 };
 165                 std::string language_code;
 166                 bool operator<(const subtitleStream &s) const
 167                 {
 168                         if (pid != s.pid)
 169                                 return pid < s.pid;
 170                         if (teletext_page_number != s.teletext_page_number)
 171                                 return teletext_page_number < s.teletext_page_number;
 172                         return teletext_magazine_number < s.teletext_magazine_number;
 173                 }
 174         };
 175
 176         struct program
 177         {
 178                 std::vector<videoStream> videoStreams;
 179                 std::vector<audioStream> audioStreams;
 180                 int defaultAudioStream;
 181                 std::vector<subtitleStream> subtitleStreams;
 182                 std::set<uint16_t> caids;
 183                 int pcrPid;
 184                 int pmtPid;
 185                 int textPid;
 186                 bool isCrypted() { return !caids.empty(); }
 187
 188                 PyObject *createPythonObject();
 189         };
 190
 191         int getProgramInfo(struct program &program);
 192         int getDataDemux(ePtr<iDVBDemux> &demux);
 193         int getDecodeDemux(ePtr<iDVBDemux> &demux);
 194         PyObject *getCaIds();
 195
 196         int getPVRChannel(ePtr<iDVBPVRChannel> &pvr_channel);
 197         int getServiceReference(eServiceReferenceDVB &service) { service = m_reference; return 0; }
 198         int getService(ePtr<eDVBService> &service) { service = m_service; return 0; }
 199         int getPMT(ePtr<eTable<ProgramMapSection> > &ptr) { return m_PMT.getCurrent(ptr); }
 200         int getChannel(eUsePtr<iDVBChannel> &channel);
 201         void resetCachedProgram() { m_have_cached_program = false; }
 202
 203         int tune(eServiceReferenceDVB &ref, int use_decode_demux, eCueSheet *sg=0);
 204         void free();
 205 private:
 206         bool m_have_cached_program;
 207         program m_cached_program;
 208 #endif
 209 };
 210
 211 #endif