lib/dvb/pmt.cpp

   1 #include <lib/base/eerror.h>
   2 #include <lib/dvb/pmt.h>
   3 #include <lib/dvb/specs.h>
   4 #include <lib/dvb/dvb.h>
   5
   6 eDVBServicePMTHandler::eDVBServicePMTHandler()
   7 {
   8         ePtr<eDVBResourceManager> mgr;
   9         eDVBResourceManager::getInstance(mgr);
  10         m_resourceManager = mgr;
  11         CONNECT(m_PMT.tableReady, eDVBServicePMTHandler::PMTready);
  12         CONNECT(m_PAT.tableReady, eDVBServicePMTHandler::PATready);
  13 }
  14
  15 void eDVBServicePMTHandler::channelStateChanged(iDVBChannel *channel)
  16 {
  17         int state;
  18         channel->getState(state);
  19
  20         if ((m_last_channel_state != iDVBChannel::state_ok)
  21                 && (state == iDVBChannel::state_ok) && (!m_demux))
  22         {
  23                 if (m_channel)
  24                         if (m_channel->getDemux(m_demux))
  25                                 eDebug("shit it failed.. again.");
  26
  27                 serviceEvent(eventTuned);
  28
  29                 if (m_demux)
  30                 {
  31                         eDebug("ok ... now we start!!");
  32                         m_PAT.begin(eApp, eDVBPATSpec(), m_demux);
  33                 }
  34         }
  35 }
  36
  37 void eDVBServicePMTHandler::PMTready(int error)
  38 {
  39         if (error)
  40                 serviceEvent(eventNoPMT);
  41         else
  42                 serviceEvent(eventNewProgramInfo);
  43 }
  44
  45 void eDVBServicePMTHandler::PATready(int)
  46 {
  47         ePtr<eTable<ProgramAssociationTable> > ptr;
  48         if (!m_PAT.getCurrent(ptr))
  49         {
  50                 int pmtpid = -1;
  51                 ProgramAssociationTableConstIterator i;
  52                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
  53                 {
  54                         const ProgramAssociationTable &pat = **i;
  55                         ProgramAssociationConstIterator program;
  56                         for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
  57                                 if (eServiceID((*program)->getProgramNumber()) == m_reference.getServiceID())
  58                                         pmtpid = (*program)->getProgramMapPid();
  59                 }
  60                 if (pmtpid == -1)
  61                         serviceEvent(eventNoPATEntry);
  62                 else
  63                         m_PMT.begin(eApp, eDVBPMTSpec(pmtpid, m_reference.getServiceID().get()), m_demux);
  64         } else
  65                 serviceEvent(eventNoPAT);
  66 }
  67
  68 int eDVBServicePMTHandler::getProgramInfo(struct program &program)
  69 {
  70         ePtr<eTable<ProgramMapTable> > ptr;
  71
  72         program.videoStreams.clear();
  73         program.audioStreams.clear();
  74         program.pcrPid = -1;
  75
  76         if (!m_PMT.getCurrent(ptr))
  77         {
  78                 ProgramMapTableConstIterator i;
  79                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
  80                 {
  81                         const ProgramMapTable &pmt = **i;
  82                         program.pcrPid = pmt.getPcrPid();
  83
  84                         ElementaryStreamInfoConstIterator es;
  85                         for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
  86                         {
  87                                 int isaudio = 0, isvideo = 0;
  88                                 videoStream video;
  89                                 audioStream audio;
  90
  91                                 video.pid = (*es)->getPid();
  92                                 audio.pid = (*es)->getPid();
  93
  94                                 switch ((*es)->getType())
  95                                 {
  96                                 case 0x01: // MPEG 1 video
  97                                 case 0x02: // MPEG 2 video
  98                                         isvideo = 1;
  99                                         break;
 100                                 case 0x03: // MPEG 1 audio
 101                                 case 0x04: // MPEG 2 audio:
 102                                         isaudio = 1;
 103                                         audio.type = audioStream::atMPEG;
 104                                         break;
 105                                 }
 106                                 if (isaudio)
 107                                         program.audioStreams.push_back(audio);
 108                                 if (isvideo)
 109                                         program.videoStreams.push_back(video);
 110                         }
 111                 }
 112                 return 0;
 113         } else
 114                 return -1;
 115 }
 116
 117 int eDVBServicePMTHandler::getDemux(ePtr<iDVBDemux> &demux)
 118 {
 119         demux = m_demux;
 120         if (demux)
 121                 return 0;
 122         else
 123                 return -1;
 124 }
 125
 126 int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref)
 127 {
 128         RESULT res;
 129         m_channel = 0;
 130         m_channelStateChanged_connection = 0;
 131         m_reference = ref;
 132         eDVBChannelID chid;
 133         ref.getChannelID(chid);
 134         res = m_resourceManager->allocateChannel(chid, m_channel);
 135         eDebug("eDVBServicePMTHandler: tune %d", res);
 136         if (m_channel)
 137         {
 138                 m_channel->connectStateChange(
 139                         slot(*this, &eDVBServicePMTHandler::channelStateChanged),
 140                         m_channelStateChanged_connection);
 141                 m_last_channel_state = -1;
 142                 channelStateChanged(m_channel);
 143         }
 144         return res;
 145 }