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
  33                         /* emit */ m_resourceManager->m_channelRunning(channel);
  34
  35                         m_PAT.begin(eApp, eDVBPATSpec(), m_demux);
  36                 }
  37         }
  38 }
  39
  40 void eDVBServicePMTHandler::PMTready(int error)
  41 {
  42         if (error)
  43                 serviceEvent(eventNoPMT);
  44         else
  45                 serviceEvent(eventNewProgramInfo);
  46 }
  47
  48 void eDVBServicePMTHandler::PATready(int)
  49 {
  50         eDebug("got PAT");
  51         ePtr<eTable<ProgramAssociationTable> > ptr;
  52         if (!m_PAT.getCurrent(ptr))
  53         {
  54                 int pmtpid = -1;
  55                 ProgramAssociationTableConstIterator i;
  56                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
  57                 {
  58                         const ProgramAssociationTable &pat = **i;
  59                         ProgramAssociationConstIterator program;
  60                         for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
  61                                 if (eServiceID((*program)->getProgramNumber()) == m_reference.getServiceID())
  62                                         pmtpid = (*program)->getProgramMapPid();
  63                 }
  64                 if (pmtpid == -1)
  65                         serviceEvent(eventNoPATEntry);
  66                 else
  67                         m_PMT.begin(eApp, eDVBPMTSpec(pmtpid, m_reference.getServiceID().get()), m_demux);
  68         } else
  69                 serviceEvent(eventNoPAT);
  70 }
  71
  72 int eDVBServicePMTHandler::getProgramInfo(struct program &program)
  73 {
  74         eDebug("got PMT");
  75         ePtr<eTable<ProgramMapTable> > ptr;
  76
  77         program.videoStreams.clear();
  78         program.audioStreams.clear();
  79         program.pcrPid = -1;
  80
  81         if (!m_PMT.getCurrent(ptr))
  82         {
  83                 ProgramMapTableConstIterator i;
  84                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
  85                 {
  86                         const ProgramMapTable &pmt = **i;
  87                         program.pcrPid = pmt.getPcrPid();
  88
  89                         ElementaryStreamInfoConstIterator es;
  90                         for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
  91                         {
  92                                 int isaudio = 0, isvideo = 0;
  93                                 videoStream video;
  94                                 audioStream audio;
  95
  96                                 video.pid = (*es)->getPid();
  97                                 audio.pid = (*es)->getPid();
  98
  99                                 switch ((*es)->getType())
 100                                 {
 101                                 case 0x01: // MPEG 1 video
 102                                 case 0x02: // MPEG 2 video
 103                                         isvideo = 1;
 104                                         break;
 105                                 case 0x03: // MPEG 1 audio
 106                                 case 0x04: // MPEG 2 audio:
 107                                         isaudio = 1;
 108                                         audio.type = audioStream::atMPEG;
 109                                         break;
 110                                 }
 111                                 if (isaudio)
 112                                         program.audioStreams.push_back(audio);
 113                                 if (isvideo)
 114                                         program.videoStreams.push_back(video);
 115                         }
 116                 }
 117                 return 0;
 118         } else
 119                 return -1;
 120 }
 121
 122 int eDVBServicePMTHandler::getDemux(ePtr<iDVBDemux> &demux)
 123 {
 124         demux = m_demux;
 125         if (demux)
 126                 return 0;
 127         else
 128                 return -1;
 129 }
 130
 131 int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref)
 132 {
 133         RESULT res;
 134         m_channel = 0;
 135         m_channelStateChanged_connection = 0;
 136         m_reference = ref;
 137         eDVBChannelID chid;
 138         ref.getChannelID(chid);
 139         res = m_resourceManager->allocateChannel(chid, m_channel);
 140         eDebug("eDVBServicePMTHandler: tune %d", res);
 141         if (m_channel)
 142         {
 143                 m_channel->connectStateChange(
 144                         slot(*this, &eDVBServicePMTHandler::channelStateChanged),
 145                         m_channelStateChanged_connection);
 146                 m_last_channel_state = -1;
 147                 channelStateChanged(m_channel);
 148         }
 149         return res;
 150 }