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