code.vuplus.com Git - vuplus_dvbapp/blob - 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 #include <lib/dvb/metaparser.h>
   6 #include <dvbsi++/ca_program_map_section.h>
   7
   8 eDVBServicePMTHandler::eDVBServicePMTHandler(int record)
   9         :m_pmt_pid(0xFFFF), m_ca_servicePtr(0)
  10 {
  11         m_record = record;
  12         eDVBResourceManager::getInstance(m_resourceManager);
  13         CONNECT(m_PMT.tableReady, eDVBServicePMTHandler::PMTready);
  14         CONNECT(m_PAT.tableReady, eDVBServicePMTHandler::PATready);
  15 }
  16
  17 eDVBServicePMTHandler::~eDVBServicePMTHandler()
  18 {
  19         delete m_ca_servicePtr;
  20 }
  21
  22 void eDVBServicePMTHandler::channelStateChanged(iDVBChannel *channel)
  23 {
  24         int state;
  25         channel->getState(state);
  26
  27         if ((m_last_channel_state != iDVBChannel::state_ok)
  28                 && (state == iDVBChannel::state_ok) && (!m_demux))
  29         {
  30                 if (m_channel)
  31                         if (m_channel->getDemux(m_demux, m_record ? 0 : iDVBChannel::capDecode))
  32                                 eDebug("Allocating a demux for now tuned-in channel failed.");
  33
  34                 serviceEvent(eventTuned);
  35
  36                 if (m_demux)
  37                 {
  38                         eDebug("ok ... now we start!!");
  39
  40                         /* emit */ m_resourceManager->m_channelRunning(channel);
  41
  42                         m_PAT.begin(eApp, eDVBPATSpec(), m_demux);
  43
  44                         if ( m_service && !m_service->cacheEmpty() )
  45                                 serviceEvent(eventNewProgramInfo);
  46                 }
  47         } else if ((m_last_channel_state != iDVBChannel::state_failed) &&
  48                         (state == iDVBChannel::state_failed))
  49         {
  50                 eDebug("tune failed.");
  51                 serviceEvent(eventTuneFailed);
  52         }
  53 }
  54
  55 void eDVBServicePMTHandler::PMTready(int error)
  56 {
  57         if (error)
  58                 serviceEvent(eventNoPMT);
  59         else
  60         {
  61                 serviceEvent(eventNewProgramInfo);
  62                 if (!m_pvr_channel && !m_ca_servicePtr)   // don't send campmt to camd.socket for playbacked services
  63                         m_ca_servicePtr = new eDVBCAService(*this);
  64                 if (m_ca_servicePtr)
  65                         m_ca_servicePtr->buildCAPMT();
  66         }
  67 }
  68
  69 void eDVBServicePMTHandler::PATready(int)
  70 {
  71         eDebug("got PAT");
  72         ePtr<eTable<ProgramAssociationSection> > ptr;
  73         if (!m_PAT.getCurrent(ptr))
  74         {
  75                 int pmtpid = -1;
  76                 std::vector<ProgramAssociationSection*>::const_iterator i;
  77                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
  78                 {
  79                         const ProgramAssociationSection &pat = **i;
  80                         ProgramAssociationConstIterator program;
  81                         for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
  82                                 if (eServiceID((*program)->getProgramNumber()) == m_reference.getServiceID())
  83                                         pmtpid = (*program)->getProgramMapPid();
  84                 }
  85                 if (pmtpid == -1)
  86                         serviceEvent(eventNoPATEntry);
  87                 else
  88                 {
  89                         m_PMT.begin(eApp, eDVBPMTSpec(pmtpid, m_reference.getServiceID().get()), m_demux);
  90                         m_pmt_pid = pmtpid;
  91                 }
  92         } else
  93                 serviceEvent(eventNoPAT);
  94 }
  95
  96 int eDVBServicePMTHandler::getProgramInfo(struct program &program)
  97 {
  98         eDebug("got PMT");
  99         ePtr<eTable<ProgramMapSection> > ptr;
 100
 101         program.videoStreams.clear();
 102         program.audioStreams.clear();
 103         program.pcrPid = -1;
 104         program.pmtPid = m_pmt_pid < 0x1fff ? m_pmt_pid : -1;
 105
 106         if (!m_PMT.getCurrent(ptr))
 107         {
 108                 std::vector<ProgramMapSection*>::const_iterator i;
 109                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 110                 {
 111                         const ProgramMapSection &pmt = **i;
 112                         program.pcrPid = pmt.getPcrPid();
 113
 114                         ElementaryStreamInfoConstIterator es;
 115                         for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
 116                         {
 117                                 int isaudio = 0, isvideo = 0;
 118                                 videoStream video;
 119                                 audioStream audio;
 120
 121                                 video.pid = (*es)->getPid();
 122                                 audio.pid = (*es)->getPid();
 123
 124                                 switch ((*es)->getType())
 125                                 {
 126                                 case 0x01: // MPEG 1 video
 127                                 case 0x02: // MPEG 2 video
 128                                         isvideo = 1;
 129                                         break;
 130                                 case 0x03: // MPEG 1 audio
 131                                 case 0x04: // MPEG 2 audio:
 132                                         isaudio = 1;
 133                                         audio.type = audioStream::atMPEG;
 134                                         break;
 135                                 }
 136                                 if (isaudio)
 137                                         program.audioStreams.push_back(audio);
 138                                 if (isvideo)
 139                                         program.videoStreams.push_back(video);
 140                         }
 141                 }
 142                 return 0;
 143         }
 144         else if ( m_service && !m_service->cacheEmpty() )
 145         {
 146                 int vpid = m_service->getCachePID(eDVBService::cVPID),
 147                         apid_ac3 = m_service->getCachePID(eDVBService::cAPID),
 148                         apid_mpeg = m_service->getCachePID(eDVBService::cAC3PID),
 149                         pcrpid = m_service->getCachePID(eDVBService::cPCRPID),
 150                         cnt=0;
 151                 if ( vpid != -1 )
 152                 {
 153                         videoStream s;
 154                         s.pid = vpid;
 155                         program.videoStreams.push_back(s);
 156                         ++cnt;
 157                 }
 158                 if ( apid_ac3 != -1 )
 159                 {
 160                         audioStream s;
 161                         s.type = audioStream::atAC3;
 162                         s.pid = apid_ac3;
 163                         program.audioStreams.push_back(s);
 164                         ++cnt;
 165                 }
 166                 if ( apid_mpeg != -1 )
 167                 {
 168                         audioStream s;
 169                         s.type = audioStream::atMPEG;
 170                         s.pid = apid_mpeg;
 171                         program.audioStreams.push_back(s);
 172                         ++cnt;
 173                 }
 174                 if ( pcrpid != -1 )
 175                 {
 176                         ++cnt;
 177                         program.pcrPid = pcrpid;
 178                 }
 179                 if ( cnt )
 180                         return 0;
 181         }
 182         return -1;
 183 }
 184
 185 int eDVBServicePMTHandler::getDemux(ePtr<iDVBDemux> &demux)
 186 {
 187         demux = m_demux;
 188         if (demux)
 189                 return 0;
 190         else
 191                 return -1;
 192 }
 193
 194 int eDVBServicePMTHandler::getPVRChannel(ePtr<iDVBPVRChannel> &pvr_channel)
 195 {
 196         pvr_channel = m_pvr_channel;
 197         if (pvr_channel)
 198                 return 0;
 199         else
 200                 return -1;
 201 }
 202
 203 int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref)
 204 {
 205         RESULT res;
 206         m_reference = ref;
 207
 208                 /* is this a normal (non PVR) channel? */
 209         if (ref.path.empty())
 210         {
 211                 eDVBChannelID chid;
 212                 ref.getChannelID(chid);
 213                 res = m_resourceManager->allocateChannel(chid, m_channel);
 214                 eDebug("allocate Channel: res %d", res);
 215         } else
 216         {
 217                 eDVBMetaParser parser;
 218
 219                 if (parser.parseFile(ref.path))
 220                         eWarning("no .meta file found, trying original service ref.");
 221                 else
 222                         m_reference = parser.m_ref;
 223
 224                 eDebug("alloc PVR");
 225                         /* allocate PVR */
 226                 res = m_resourceManager->allocatePVRChannel(m_pvr_channel);
 227                 if (res)
 228                         eDebug("allocatePVRChannel failed!\n");
 229                 m_channel = m_pvr_channel;
 230         }
 231
 232         if (m_channel)
 233         {
 234                 m_channel->connectStateChange(
 235                         slot(*this, &eDVBServicePMTHandler::channelStateChanged),
 236                         m_channelStateChanged_connection);
 237                 m_last_channel_state = -1;
 238                 channelStateChanged(m_channel);
 239         } else
 240         {
 241                 serviceEvent(eventTuneFailed);
 242                 return res;
 243         }
 244
 245         if (m_pvr_channel)
 246                 m_pvr_channel->playFile(ref.path.c_str());
 247
 248         ePtr<iDVBChannelList> db;
 249         if (!m_resourceManager->getChannelList(db))
 250                 db->getService((eServiceReferenceDVB&)m_reference, m_service);
 251
 252         return res;
 253 }
 254
 255 void eDVBCAService::Connect()
 256 {
 257         memset(&m_servaddr, 0, sizeof(struct sockaddr_un));
 258         m_servaddr.sun_family = AF_UNIX;
 259         strcpy(m_servaddr.sun_path, "/tmp/camd.socket");
 260         m_clilen = sizeof(m_servaddr.sun_family) + strlen(m_servaddr.sun_path);
 261         m_sock = socket(PF_UNIX, SOCK_STREAM, 0);
 262         connect(m_sock, (struct sockaddr *) &m_servaddr, m_clilen);
 263         fcntl(m_sock, F_SETFL, O_NONBLOCK);
 264         int val=1;
 265         setsockopt(m_sock, SOL_SOCKET, SO_REUSEADDR, &val, 4);
 266 }
 267
 268 void eDVBCAService::buildCAPMT()
 269 {
 270         ePtr<eTable<ProgramMapSection> > ptr;
 271
 272         if (m_parent.m_PMT.getCurrent(ptr))
 273                 return;
 274
 275         std::vector<ProgramMapSection*>::const_iterator i=ptr->getSections().begin();
 276         if ( i != ptr->getSections().end() )
 277         {
 278                 CaProgramMapSection capmt(*i++, m_capmt == NULL ? 0x03 /*only*/: 0x05 /*update*/, 0x01 );
 279
 280                 while( i != ptr->getSections().end() )
 281                 {
 282 //                      eDebug("append");
 283                         capmt.append(*i++);
 284                 }
 285
 286                 // add our private descriptors to capmt
 287                 uint8_t tmp[10];
 288
 289                 tmp[0]=0x84;  // pmt pid
 290                 tmp[1]=0x02;
 291                 tmp[2]=m_parent.m_pmt_pid>>8;
 292                 tmp[3]=m_parent.m_pmt_pid&0xFF;
 293                 capmt.injectDescriptor(tmp, false);
 294
 295                 tmp[0] = 0x82; // demux
 296                 tmp[1] = 0x02;
 297                 m_parent.m_demux->getCADemuxID(tmp[3]); // read section data from demux number
 298                 tmp[2] = 1 << tmp[3];                   // descramble bitmask
 299                 capmt.injectDescriptor(tmp, false);
 300
 301                 tmp[0] = 0x81; // dvbnamespace
 302                 tmp[1] = 0x08;
 303                 tmp[2] = m_parent.m_reference.getDVBNamespace().get()>>24;
 304                 tmp[3]=(m_parent.m_reference.getDVBNamespace().get()>>16)&0xFF;
 305                 tmp[4]=(m_parent.m_reference.getDVBNamespace().get()>>8)&0xFF;
 306                 tmp[5]=m_parent.m_reference.getDVBNamespace().get()&0xFF;
 307                 tmp[6]=m_parent.m_reference.getTransportStreamID().get()>>8;
 308                 tmp[7]=m_parent.m_reference.getTransportStreamID().get()&0xFF;
 309                 tmp[8]=m_parent.m_reference.getOriginalNetworkID().get()>>8;
 310                 tmp[9]=m_parent.m_reference.getOriginalNetworkID().get()&0xFF;
 311                 capmt.injectDescriptor(tmp, false);
 312
 313                 if ( !m_capmt )
 314                         m_capmt = new uint8_t[2048];
 315
 316                 capmt.writeToBuffer(m_capmt);
 317         }
 318
 319         if ( m_sendstate != 0xFFFFFFFF )
 320                 m_sendstate=0;
 321         sendCAPMT();
 322 }
 323
 324 void eDVBCAService::sendCAPMT()
 325 {
 326         if ( m_sendstate && m_sendstate != 0xFFFFFFFF ) // broken pipe retry
 327         {
 328                 ::close(m_sock);
 329                 Connect();
 330         }
 331
 332         int wp=0;
 333         if ( m_capmt[3] & 0x80 )
 334         {
 335                 int i=0;
 336                 int lenbytes = m_capmt[3] & ~0x80;
 337                 while(i < lenbytes)
 338                         wp |= (m_capmt[4+i] << (8 * i++));
 339                 wp+=4;
 340                 wp+=lenbytes;
 341         }
 342         else
 343         {
 344                 wp = m_capmt[3];
 345                 wp+=4;
 346         }
 347
 348         if ( write(m_sock, m_capmt, wp) == wp )
 349         {
 350                 m_sendstate=0xFFFFFFFF;
 351                 eDebug("[eDVBCAHandler] send %d bytes",wp);
 352 #if 1
 353                 for(int i=0;i<wp;i++)
 354                         eDebugNoNewLine("%02x ", m_capmt[i]);
 355                 eDebug("");
 356 #endif
 357         }
 358         else
 359         {
 360                 switch(m_sendstate)
 361                 {
 362                         case 0xFFFFFFFF:
 363                                 ++m_sendstate;
 364                                 m_retryTimer.start(0,true);
 365 //                              eDebug("[eDVBCAHandler] send failed .. immediate retry");
 366                                 break;
 367                         default:
 368                                 m_retryTimer.start(5000,true);
 369 //                              eDebug("[eDVBCAHandler] send failed .. retry in 5 sec");
 370                                 break;
 371                 }
 372                 ++m_sendstate;
 373         }
 374 }