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         eDebug("got PAT");
  48         ePtr<eTable<ProgramAssociationTable> > ptr;
  49         if (!m_PAT.getCurrent(ptr))
  50         {
  51                 int pmtpid = -1;
  52                 ProgramAssociationTableConstIterator i;
  53                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
  54                 {
  55                         const ProgramAssociationTable &pat = **i;
  56                         ProgramAssociationConstIterator program;
  57                         for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
  58                                 if (eServiceID((*program)->getProgramNumber()) == m_reference.getServiceID())
  59                                         pmtpid = (*program)->getProgramMapPid();
  60                 }
  61                 if (pmtpid == -1)
  62                         serviceEvent(eventNoPATEntry);
  63                 else
  64                         m_PMT.begin(eApp, eDVBPMTSpec(pmtpid, m_reference.getServiceID().get()), m_demux);
  65         } else
  66                 serviceEvent(eventNoPAT);
  67 }
  68
  69 int eDVBServicePMTHandler::getProgramInfo(struct program &program)
  70 {
  71         eDebug("got PMT");
  72         ePtr<eTable<ProgramMapTable> > ptr;
  73
  74         program.videoStreams.clear();
  75         program.audioStreams.clear();
  76         program.pcrPid = -1;
  77
  78         if (!m_PMT.getCurrent(ptr))
  79         {
  80                 ProgramMapTableConstIterator i;
  81                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
  82                 {
  83                         const ProgramMapTable &pmt = **i;
  84                         program.pcrPid = pmt.getPcrPid();
  85
  86                         ElementaryStreamInfoConstIterator es;
  87                         for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
  88                         {
  89                                 int isaudio = 0, isvideo = 0;
  90                                 videoStream video;
  91                                 audioStream audio;
  92
  93                                 video.pid = (*es)->getPid();
  94                                 audio.pid = (*es)->getPid();
  95
  96                                 switch ((*es)->getType())
  97                                 {
  98                                 case 0x01: // MPEG 1 video
  99                                 case 0x02: // MPEG 2 video
 100                                         isvideo = 1;
 101                                         break;
 102                                 case 0x03: // MPEG 1 audio
 103                                 case 0x04: // MPEG 2 audio:
 104                                         isaudio = 1;
 105                                         audio.type = audioStream::atMPEG;
 106                                         break;
 107                                 }
 108                                 if (isaudio)
 109                                         program.audioStreams.push_back(audio);
 110                                 if (isvideo)
 111                                         program.videoStreams.push_back(video);
 112                         }
 113                 }
 114                 return 0;
 115         } else
 116                 return -1;
 117 }
 118
 119 int eDVBServicePMTHandler::getDemux(ePtr<iDVBDemux> &demux)
 120 {
 121         demux = m_demux;
 122         if (demux)
 123                 return 0;
 124         else
 125                 return -1;
 126 }
 127
 128 int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref)
 129 {
 130         RESULT res;
 131         m_channel = 0;
 132         m_channelStateChanged_connection = 0;
 133         m_reference = ref;
 134         eDVBChannelID chid;
 135         ref.getChannelID(chid);
 136         res = m_resourceManager->allocateChannel(chid, m_channel);
 137         eDebug("eDVBServicePMTHandler: tune %d", res);
 138         if (m_channel)
 139         {
 140                 m_channel->connectStateChange(
 141                         slot(*this, &eDVBServicePMTHandler::channelStateChanged),
 142                         m_channelStateChanged_connection);
 143                 m_last_channel_state = -1;
 144                 channelStateChanged(m_channel);
 145         }
 146         return res;
 147 }