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 <lib/dvb_ci/dvbci.h>
   7 #include <lib/dvb/epgcache.h>
   8 #include <dvbsi++/ca_descriptor.h>
   9 #include <dvbsi++/ca_program_map_section.h>
  10 #include <dvbsi++/teletext_descriptor.h>
  11 #include <dvbsi++/descriptor_tag.h>
  12 #include <dvbsi++/iso639_language_descriptor.h>
  13 #include <dvbsi++/stream_identifier_descriptor.h>
  14
  15 eDVBServicePMTHandler::eDVBServicePMTHandler()
  16         :m_ca_servicePtr(0), m_decode_demux_num(0xFF)
  17 {
  18         m_use_decode_demux = 0;
  19         m_pmt_pid = -1;
  20         eDVBResourceManager::getInstance(m_resourceManager);
  21         CONNECT(m_PMT.tableReady, eDVBServicePMTHandler::PMTready);
  22         CONNECT(m_PAT.tableReady, eDVBServicePMTHandler::PATready);
  23 }
  24
  25 eDVBServicePMTHandler::~eDVBServicePMTHandler()
  26 {
  27         free();
  28 }
  29
  30 void eDVBServicePMTHandler::channelStateChanged(iDVBChannel *channel)
  31 {
  32         int state;
  33         channel->getState(state);
  34
  35         if ((m_last_channel_state != iDVBChannel::state_ok)
  36                 && (state == iDVBChannel::state_ok) && (!m_demux))
  37         {
  38                 if (m_channel)
  39                         if (m_channel->getDemux(m_demux, (!m_use_decode_demux) ? 0 : iDVBChannel::capDecode))
  40                                 eDebug("Allocating %s-decoding a demux for now tuned-in channel failed.", m_use_decode_demux ? "" : "non-");
  41
  42                 serviceEvent(eventTuned);
  43
  44                 if (m_demux)
  45                 {
  46                         eDebug("ok ... now we start!!");
  47
  48                         if (m_pmt_pid == -1)
  49                                 m_PAT.begin(eApp, eDVBPATSpec(), m_demux);
  50                         else
  51                                 m_PMT.begin(eApp, eDVBPMTSpec(m_pmt_pid, m_reference.getServiceID().get()), m_demux);
  52
  53                         if ( m_service && !m_service->cacheEmpty() )
  54                                 serviceEvent(eventNewProgramInfo);
  55                 }
  56         } else if ((m_last_channel_state != iDVBChannel::state_failed) &&
  57                         (state == iDVBChannel::state_failed))
  58         {
  59                 eDebug("tune failed.");
  60                 serviceEvent(eventTuneFailed);
  61         }
  62 }
  63
  64 void eDVBServicePMTHandler::channelEvent(iDVBChannel *channel, int event)
  65 {
  66         switch (event)
  67         {
  68         case iDVBChannel::evtEOF:
  69                 serviceEvent(eventEOF);
  70                 break;
  71         case iDVBChannel::evtSOF:
  72                 serviceEvent(eventSOF);
  73                 break;
  74         default:
  75                 break;
  76         }
  77 }
  78
  79 void eDVBServicePMTHandler::PMTready(int error)
  80 {
  81         if (error)
  82                 serviceEvent(eventNoPMT);
  83         else
  84         {
  85                 serviceEvent(eventNewProgramInfo);
  86                 eEPGCache::getInstance()->PMTready(this);
  87                 if (!m_pvr_channel)
  88                 {
  89                         if(!m_ca_servicePtr)   // don't send campmt to camd.socket for playbacked services
  90                         {
  91                                 int demuxes[2] = {0,0};
  92                                 uint8_t tmp;
  93                                 m_demux->getCADemuxID(tmp);
  94                                 demuxes[0]=tmp;
  95                                 if (m_decode_demux_num != 0xFF)
  96                                         demuxes[1]=m_decode_demux_num;
  97                                 else
  98                                         demuxes[1]=demuxes[0];
  99                                 eDVBCAService::register_service(m_reference, demuxes, m_ca_servicePtr);
 100                                 eDVBCIInterfaces::getInstance()->addPMTHandler(this);
 101                         }
 102                         eDVBCIInterfaces::getInstance()->gotPMT(this);
 103                 }
 104                 if (m_ca_servicePtr)
 105                 {
 106                         ePtr<eTable<ProgramMapSection> > ptr;
 107                         if (!m_PMT.getCurrent(ptr))
 108                                 m_ca_servicePtr->buildCAPMT(ptr);
 109                         else
 110                                 eDebug("eDVBServicePMTHandler cannot call buildCAPMT");
 111                 }
 112         }
 113 }
 114
 115 void eDVBServicePMTHandler::PATready(int)
 116 {
 117         ePtr<eTable<ProgramAssociationSection> > ptr;
 118         if (!m_PAT.getCurrent(ptr))
 119         {
 120                 int pmtpid = -1;
 121                 std::vector<ProgramAssociationSection*>::const_iterator i;
 122                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 123                 {
 124                         const ProgramAssociationSection &pat = **i;
 125                         ProgramAssociationConstIterator program;
 126                         for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
 127                                 if (eServiceID((*program)->getProgramNumber()) == m_reference.getServiceID())
 128                                         pmtpid = (*program)->getProgramMapPid();
 129                 }
 130                 if (pmtpid == -1)
 131                         serviceEvent(eventNoPATEntry);
 132                 else
 133                         m_PMT.begin(eApp, eDVBPMTSpec(pmtpid, m_reference.getServiceID().get()), m_demux);
 134         } else
 135                 serviceEvent(eventNoPAT);
 136 }
 137
 138 PyObject *eDVBServicePMTHandler::getCaIds()
 139 {
 140         PyObject *ret=0;
 141
 142         ePtr<eTable<ProgramMapSection> > ptr;
 143
 144         if ( ((m_service && m_service->usePMT()) || !m_service) && !m_PMT.getCurrent(ptr))
 145         {
 146                 uint16_t caids[255];
 147                 memset(caids, 0, sizeof(caids));
 148                 std::vector<ProgramMapSection*>::const_iterator i = ptr->getSections().begin();
 149                 for (; i != ptr->getSections().end(); ++i)
 150                 {
 151                         const ProgramMapSection &pmt = **i;
 152                         ElementaryStreamInfoConstIterator es = pmt.getEsInfo()->begin();
 153                         for (; es != pmt.getEsInfo()->end(); ++es)
 154                         {
 155                                 for (DescriptorConstIterator desc = (*es)->getDescriptors()->begin();
 156                                                 desc != (*es)->getDescriptors()->end(); ++desc)
 157                                 {
 158                                         switch ((*desc)->getTag())
 159                                         {
 160                                                 case CA_DESCRIPTOR:
 161                                                 {
 162                                                         const CaDescriptor *cadescr = (const CaDescriptor*)*desc;
 163                                                         uint16_t caid = cadescr->getCaSystemId();
 164                                                         int idx=0;
 165                                                         while (caids[idx] && caids[idx] != caid)
 166                                                                 ++idx;
 167                                                         caids[idx]=caid;
 168                                                         break;
 169                                                 }
 170                                         }
 171                                 }
 172                         }
 173                         for (DescriptorConstIterator desc = pmt.getDescriptors()->begin();
 174                                 desc != pmt.getDescriptors()->end(); ++desc)
 175                         {
 176                                 switch ((*desc)->getTag())
 177                                 {
 178                                         case CA_DESCRIPTOR:
 179                                         {
 180                                                 const CaDescriptor *cadescr = (const CaDescriptor*)*desc;
 181                                                 uint16_t caid = cadescr->getCaSystemId();
 182                                                 int idx=0;
 183                                                 while (caids[idx] && caids[idx] != caid)
 184                                                         ++idx;
 185                                                 caids[idx]=caid;
 186                                                 break;
 187                                         }
 188                                 }
 189                         }
 190                 }
 191                 int cnt=0;
 192                 while (caids[cnt])
 193                         ++cnt;
 194                 if (cnt)
 195                 {
 196                         ret=PyList_New(cnt);
 197                         while(cnt--)
 198                                 PyList_SET_ITEM(ret, cnt, PyInt_FromLong(caids[cnt]));
 199                 }
 200         }
 201
 202         if (!ret)
 203                 ret=PyList_New(0);
 204
 205         return ret;
 206 }
 207
 208 int eDVBServicePMTHandler::getProgramInfo(struct program &program)
 209 {
 210         ePtr<eTable<ProgramMapSection> > ptr;
 211
 212         program.videoStreams.clear();
 213         program.audioStreams.clear();
 214         program.pcrPid = -1;
 215         program.isCrypted = false;
 216         program.pmtPid = -1;
 217         program.textPid = -1;
 218
 219         if ( ((m_service && m_service->usePMT()) || !m_service) && !m_PMT.getCurrent(ptr))
 220         {
 221                 int cached_apid_ac3 = -1;
 222                 int cached_apid_mpeg = -1;
 223                 int cached_vpid = -1;
 224                 int cached_tpid = -1;
 225                 if ( m_service && !m_service->cacheEmpty() )
 226                 {
 227                         cached_vpid = m_service->getCachePID(eDVBService::cVPID);
 228                         cached_apid_mpeg = m_service->getCachePID(eDVBService::cAC3PID);
 229                         cached_apid_ac3 = m_service->getCachePID(eDVBService::cAPID);
 230                         cached_tpid = m_service->getCachePID(eDVBService::cTPID);
 231                 }
 232                 eDVBTableSpec table_spec;
 233                 ptr->getSpec(table_spec);
 234                 program.pmtPid = table_spec.pid < 0x1fff ? table_spec.pid : -1;
 235                 std::vector<ProgramMapSection*>::const_iterator i;
 236                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 237                 {
 238                         const ProgramMapSection &pmt = **i;
 239                         program.pcrPid = pmt.getPcrPid();
 240
 241                         ElementaryStreamInfoConstIterator es;
 242                         for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
 243                         {
 244                                 int isaudio = 0, isvideo = 0, cadescriptors = 0;
 245                                 videoStream video;
 246                                 audioStream audio;
 247                                 audio.component_tag=-1;
 248                                 video.component_tag=-1;
 249
 250                                 video.pid = (*es)->getPid();
 251                                 audio.pid = (*es)->getPid();
 252
 253                                 switch ((*es)->getType())
 254                                 {
 255                                 case 0x01: // MPEG 1 video
 256                                 case 0x02: // MPEG 2 video
 257                                         isvideo = 1;
 258                                         //break; fall through !!!
 259                                 case 0x03: // MPEG 1 audio
 260                                 case 0x04: // MPEG 2 audio:
 261                                         if (!isvideo)
 262                                         {
 263                                                 isaudio = 1;
 264                                                 audio.type = audioStream::atMPEG;
 265                                         }
 266                                         //break; fall through !!!
 267                                 case 0x06: // PES Private
 268                                                 /* PES private can contain AC-3, DTS or lots of other stuff.
 269                                                    check descriptors to get the exact type. */
 270                                         for (DescriptorConstIterator desc = (*es)->getDescriptors()->begin();
 271                                                         desc != (*es)->getDescriptors()->end(); ++desc)
 272                                         {
 273                                                 switch ((*desc)->getTag())
 274                                                 {
 275                                                 case TELETEXT_DESCRIPTOR:
 276                                                         if ( program.textPid == -1 || (*es)->getPid() == cached_tpid )
 277                                                                 program.textPid = (*es)->getPid();
 278                                                         break;
 279                                                 case AC3_DESCRIPTOR:
 280                                                         if (!isvideo)
 281                                                         {
 282                                                                 isaudio = 1;
 283                                                                 audio.type = audioStream::atAC3;
 284                                                         }
 285                                                         break;
 286                                                 case ISO_639_LANGUAGE_DESCRIPTOR:
 287                                                         if (!isvideo)
 288                                                         {
 289                                                                 const Iso639LanguageList *languages = ((Iso639LanguageDescriptor*)*desc)->getIso639Languages();
 290                                                                         /* use last language code */
 291                                                                 for (Iso639LanguageConstIterator i(languages->begin()); i != languages->end(); ++i)
 292                                                                         audio.language_code = (*i)->getIso639LanguageCode();
 293                                                         }
 294                                                         break;
 295                                                 case STREAM_IDENTIFIER_DESCRIPTOR:
 296                                                         audio.component_tag =
 297                                                                 video.component_tag =
 298                                                                         ((StreamIdentifierDescriptor*)*desc)->getComponentTag();
 299                                                         break;
 300                                                 case CA_DESCRIPTOR:
 301                                                         ++cadescriptors;
 302                                                         break;
 303                                                 }
 304                                         }
 305                                         break;
 306                                 }
 307                                 if (isaudio)
 308                                 {
 309                                         if ( !program.audioStreams.empty() &&
 310                                                 ( audio.pid == cached_apid_ac3 || audio.pid == cached_apid_mpeg) )
 311                                         {
 312                                                 program.audioStreams.push_back(program.audioStreams[0]);
 313                                                 program.audioStreams[0] = audio;
 314                                         }
 315                                         else
 316                                                 program.audioStreams.push_back(audio);
 317                                 }
 318                                 else if (isvideo)
 319                                 {
 320                                         if ( !program.videoStreams.empty() && video.pid == cached_vpid )
 321                                         {
 322                                                 program.videoStreams.push_back(program.videoStreams[0]);
 323                                                 program.videoStreams[0] = video;
 324                                         }
 325                                         else
 326                                                 program.videoStreams.push_back(video);
 327                                 }
 328                                 else
 329                                         continue;
 330                                 if ( cadescriptors > 0 )
 331                                         program.isCrypted=true;
 332                         }
 333                         if ( !program.isCrypted )
 334                         {
 335                                 for (DescriptorConstIterator desc = pmt.getDescriptors()->begin();
 336                                         desc != pmt.getDescriptors()->end(); ++desc)
 337                                 {
 338                                         switch ((*desc)->getTag())
 339                                         {
 340                                         case CA_DESCRIPTOR:
 341                                                 program.isCrypted=true;
 342                                                 break;
 343                                         }
 344                                 }
 345                                 break;
 346                         }
 347                 }
 348                 return 0;
 349         } else if ( m_service && !m_service->cacheEmpty() )
 350         {
 351                 int vpid = m_service->getCachePID(eDVBService::cVPID),
 352                         apid_ac3 = m_service->getCachePID(eDVBService::cAC3PID),
 353                         apid_mpeg = m_service->getCachePID(eDVBService::cAPID),
 354                         pcrpid = m_service->getCachePID(eDVBService::cPCRPID),
 355                         tpid = m_service->getCachePID(eDVBService::cTPID),
 356                         cnt=0;
 357                 if ( vpid != -1 )
 358                 {
 359                         videoStream s;
 360                         s.pid = vpid;
 361                         program.videoStreams.push_back(s);
 362                         ++cnt;
 363                 }
 364                 if ( apid_ac3 != -1 )
 365                 {
 366                         audioStream s;
 367                         s.type = audioStream::atAC3;
 368                         s.pid = apid_ac3;
 369                         program.audioStreams.push_back(s);
 370                         ++cnt;
 371                 }
 372                 if ( apid_mpeg != -1 )
 373                 {
 374                         audioStream s;
 375                         s.type = audioStream::atMPEG;
 376                         s.pid = apid_mpeg;
 377                         program.audioStreams.push_back(s);
 378                         ++cnt;
 379                 }
 380                 if ( pcrpid != -1 )
 381                 {
 382                         ++cnt;
 383                         program.pcrPid = pcrpid;
 384                 }
 385                 if ( tpid != -1 )
 386                 {
 387                         ++cnt;
 388                         program.textPid = tpid;
 389                 }
 390                 if ( cnt )
 391                         return 0;
 392         }
 393         return -1;
 394 }
 395
 396 int eDVBServicePMTHandler::getChannel(eUsePtr<iDVBChannel> &channel)
 397 {
 398         channel = m_channel;
 399         if (channel)
 400                 return 0;
 401         else
 402                 return -1;
 403 }
 404
 405 int eDVBServicePMTHandler::getDataDemux(ePtr<iDVBDemux> &demux)
 406 {
 407         demux = m_demux;
 408         if (demux)
 409                 return 0;
 410         else
 411                 return -1;
 412 }
 413
 414 int eDVBServicePMTHandler::getDecodeDemux(ePtr<iDVBDemux> &demux)
 415 {
 416         int ret=0;
 417                 /* if we're using the decoding demux as data source
 418                    (for example in pvr playbacks), return that one. */
 419         if (m_use_decode_demux)
 420         {
 421                 demux = m_demux;
 422                 return ret;
 423         }
 424
 425         ASSERT(m_channel); /* calling without a previous ::tune is certainly bad. */
 426
 427         ret = m_channel->getDemux(demux, iDVBChannel::capDecode);
 428         if (!ret)
 429                 demux->getCADemuxID(m_decode_demux_num);
 430
 431         return ret;
 432 }
 433
 434 int eDVBServicePMTHandler::getPVRChannel(ePtr<iDVBPVRChannel> &pvr_channel)
 435 {
 436         pvr_channel = m_pvr_channel;
 437         if (pvr_channel)
 438                 return 0;
 439         else
 440                 return -1;
 441 }
 442
 443 int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref, int use_decode_demux, eCueSheet *cue)
 444 {
 445         RESULT res;
 446         m_reference = ref;
 447
 448         m_use_decode_demux = use_decode_demux;
 449
 450                 /* is this a normal (non PVR) channel? */
 451         if (ref.path.empty())
 452         {
 453                 eDVBChannelID chid;
 454                 ref.getChannelID(chid);
 455                 res = m_resourceManager->allocateChannel(chid, m_channel);
 456                 eDebug("allocate Channel: res %d", res);
 457         } else
 458         {
 459                 eDVBMetaParser parser;
 460
 461                 if (parser.parseFile(ref.path))
 462                 {
 463                         eWarning("no .meta file found, trying to find PMT pid");
 464                         eDVBTSTools tstools;
 465                         if (tstools.openFile(ref.path.c_str()))
 466                                 eWarning("failed to open file");
 467                         else
 468                         {
 469                                 int service_id, pmt_pid;
 470                                 if (!tstools.findPMT(pmt_pid, service_id))
 471                                 {
 472                                         eDebug("PMT pid found on pid %04x, service id %d", pmt_pid, service_id);
 473                                         m_reference.setServiceID(service_id);
 474                                         m_pmt_pid = pmt_pid;
 475                                 }
 476                         }
 477                 } else
 478                         m_reference = parser.m_ref;
 479
 480                 eDebug("alloc PVR");
 481                         /* allocate PVR */
 482                 res = m_resourceManager->allocatePVRChannel(m_pvr_channel);
 483                 if (res)
 484                         eDebug("allocatePVRChannel failed!\n");
 485                 m_channel = m_pvr_channel;
 486         }
 487
 488         ePtr<iDVBChannelList> db;
 489         if (!m_resourceManager->getChannelList(db))
 490                 db->getService((eServiceReferenceDVB&)m_reference, m_service);
 491
 492         if (m_channel)
 493         {
 494                 m_channel->connectStateChange(
 495                         slot(*this, &eDVBServicePMTHandler::channelStateChanged),
 496                         m_channelStateChanged_connection);
 497                 m_last_channel_state = -1;
 498                 channelStateChanged(m_channel);
 499
 500                 m_channel->connectEvent(
 501                         slot(*this, &eDVBServicePMTHandler::channelEvent),
 502                         m_channelEvent_connection);
 503         } else
 504         {
 505                 serviceEvent(eventTuneFailed);
 506                 return res;
 507         }
 508
 509         if (m_pvr_channel)
 510         {
 511                 m_pvr_channel->setCueSheet(cue);
 512                 m_pvr_channel->playFile(ref.path.c_str());
 513         }
 514
 515         return res;
 516 }
 517
 518 void eDVBServicePMTHandler::free()
 519 {
 520         if (m_ca_servicePtr)
 521         {
 522                 int demuxes[2] = {0,0};
 523                 uint8_t tmp;
 524                 m_demux->getCADemuxID(tmp);
 525                 demuxes[0]=tmp;
 526                 if (m_decode_demux_num != 0xFF)
 527                         demuxes[1]=m_decode_demux_num;
 528                 else
 529                         demuxes[1]=demuxes[0];
 530                 ePtr<eTable<ProgramMapSection> > ptr;
 531                 m_PMT.getCurrent(ptr);
 532                 eDVBCAService::unregister_service(m_reference, demuxes, ptr);
 533                 eDVBCIInterfaces::getInstance()->removePMTHandler(this);
 534                 m_ca_servicePtr = 0;
 535         }
 536
 537         if (m_pvr_channel)
 538         {
 539                 m_pvr_channel->stopFile();
 540                 m_pvr_channel->setCueSheet(0);
 541         }
 542         m_PMT.stop();
 543         m_PAT.stop();
 544         m_service = 0;
 545         m_channel = 0;
 546         m_pvr_channel = 0;
 547         m_demux = 0;
 548 }
 549
 550 std::map<eServiceReferenceDVB, eDVBCAService*> eDVBCAService::exist;
 551
 552 eDVBCAService::eDVBCAService()
 553         :m_prev_build_hash(0), m_sendstate(0), m_retryTimer(eApp)
 554 {
 555         memset(m_used_demux, 0xFF, sizeof(m_used_demux));
 556         CONNECT(m_retryTimer.timeout, eDVBCAService::sendCAPMT);
 557         Connect();
 558 }
 559
 560 eDVBCAService::~eDVBCAService()
 561 {
 562         eDebug("[eDVBCAService] free service %s", m_service.toString().c_str());
 563         ::close(m_sock);
 564 }
 565
 566 RESULT eDVBCAService::register_service( const eServiceReferenceDVB &ref, int demux_nums[2], eDVBCAService *&caservice )
 567 {
 568         CAServiceMap::iterator it = exist.find(ref);
 569         if ( it != exist.end() )
 570                 caservice = it->second;
 571         else
 572         {
 573                 caservice = (exist[ref]=new eDVBCAService());
 574                 caservice->m_service = ref;
 575                 eDebug("[eDVBCAService] new service %s", ref.toString().c_str() );
 576         }
 577
 578         int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 579         for (int i=0; i < loops; ++i)
 580         {
 581 // search free demux entry
 582                 int iter=0, max_demux_slots = sizeof(caservice->m_used_demux);
 583
 584                 while ( iter < max_demux_slots && caservice->m_used_demux[iter] != 0xFF )
 585                         ++iter;
 586
 587                 if ( iter < max_demux_slots )
 588                 {
 589                         caservice->m_used_demux[iter] = demux_nums[i] & 0xFF;
 590                         eDebug("[eDVBCAService] add demux %d to slot %d service %s", caservice->m_used_demux[iter], iter, ref.toString().c_str());
 591                 }
 592                 else
 593                 {
 594                         eDebug("[eDVBCAService] no more demux slots free for service %s!!", ref.toString().c_str());
 595                         return -1;
 596                 }
 597         }
 598         return 0;
 599 }
 600
 601 RESULT eDVBCAService::unregister_service( const eServiceReferenceDVB &ref, int demux_nums[2], eTable<ProgramMapSection> *ptr )
 602 {
 603         CAServiceMap::iterator it = exist.find(ref);
 604         if ( it == exist.end() )
 605         {
 606                 eDebug("[eDVBCAService] try to unregister non registered %s", ref.toString().c_str());
 607                 return -1;
 608         }
 609         else
 610         {
 611                 eDVBCAService *caservice = it->second;
 612                 int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 613                 for (int i=0; i < loops; ++i)
 614                 {
 615                         bool freed = false;
 616                         int iter = 0,
 617                                 used_demux_slots = 0,
 618                                 max_demux_slots = sizeof(caservice->m_used_demux)/sizeof(int);
 619                         while ( iter < max_demux_slots )
 620                         {
 621                                 if ( caservice->m_used_demux[iter] != 0xFF )
 622                                 {
 623                                         if ( !freed && caservice->m_used_demux[iter] == demux_nums[i] )
 624                                         {
 625                                                 eDebug("[eDVBCAService] free slot %d demux %d for service %s", iter, caservice->m_used_demux[iter], caservice->m_service.toString().c_str() );
 626                                                 caservice->m_used_demux[iter] = 0xFF;
 627                                                 freed=true;
 628                                         }
 629                                         else
 630                                                 ++used_demux_slots;
 631                                 }
 632                                 ++iter;
 633                         }
 634                         if (!freed)
 635                                 eDebug("[eDVBCAService] couldn't free demux slot for demux %d", demux_nums[i]);
 636                         if (i || loops == 1)
 637                         {
 638                                 if (!used_demux_slots)  // no more used.. so we remove it
 639                                 {
 640                                         delete it->second;
 641                                         exist.erase(it);
 642                                 }
 643                                 else
 644                                 {
 645                                         if (ptr)
 646                                                 it->second->buildCAPMT(ptr);
 647                                         else
 648                                                 eDebug("[eDVBCAService] can not send updated demux info");
 649                                 }
 650                         }
 651                 }
 652         }
 653         return 0;
 654 }
 655
 656 void eDVBCAService::Connect()
 657 {
 658         memset(&m_servaddr, 0, sizeof(struct sockaddr_un));
 659         m_servaddr.sun_family = AF_UNIX;
 660         strcpy(m_servaddr.sun_path, "/tmp/camd.socket");
 661         m_clilen = sizeof(m_servaddr.sun_family) + strlen(m_servaddr.sun_path);
 662         m_sock = socket(PF_UNIX, SOCK_STREAM, 0);
 663         connect(m_sock, (struct sockaddr *) &m_servaddr, m_clilen);
 664         fcntl(m_sock, F_SETFL, O_NONBLOCK);
 665         int val=1;
 666         setsockopt(m_sock, SOL_SOCKET, SO_REUSEADDR, &val, 4);
 667 }
 668
 669 void eDVBCAService::buildCAPMT(eTable<ProgramMapSection> *ptr)
 670 {
 671         if (!ptr)
 672                 return;
 673
 674         eDVBTableSpec table_spec;
 675         ptr->getSpec(table_spec);
 676
 677         int pmtpid = table_spec.pid,
 678                 pmt_version = table_spec.version;
 679
 680         uint8_t demux_mask = 0;
 681         int data_demux = -1;
 682
 683         int iter=0, max_demux_slots = sizeof(m_used_demux);
 684         while ( iter < max_demux_slots )
 685         {
 686                 if ( m_used_demux[iter] != 0xFF )
 687                 {
 688                         if ( m_used_demux[iter] > data_demux )
 689                                 data_demux = m_used_demux[iter];
 690                         demux_mask |= (1 << m_used_demux[iter]);
 691                 }
 692                 ++iter;
 693         }
 694
 695         if ( data_demux == -1 )
 696         {
 697                 eDebug("[eDVBCAService] no data demux found for service %s", m_service.toString().c_str() );
 698                 return;
 699         }
 700
 701         eDebug("demux %d mask %02x prevhash %08x", data_demux, demux_mask, m_prev_build_hash);
 702
 703         unsigned int build_hash = (pmtpid << 16);
 704         build_hash |= (demux_mask << 8);
 705         build_hash |= (pmt_version&0xFF);
 706
 707         if ( build_hash == m_prev_build_hash )
 708         {
 709                 eDebug("[eDVBCAService] don't build/send the same CA PMT twice");
 710                 return;
 711         }
 712
 713         std::vector<ProgramMapSection*>::const_iterator i=ptr->getSections().begin();
 714         if ( i != ptr->getSections().end() )
 715         {
 716                 CaProgramMapSection capmt(*i++, m_prev_build_hash ? 0x05 /*update*/ : 0x03 /*only*/, 0x01 );
 717
 718                 while( i != ptr->getSections().end() )
 719                 {
 720 //                      eDebug("append");
 721                         capmt.append(*i++);
 722                 }
 723
 724                 // add our private descriptors to capmt
 725                 uint8_t tmp[10];
 726
 727                 tmp[0]=0x84;  // pmt pid
 728                 tmp[1]=0x02;
 729                 tmp[2]=pmtpid>>8;
 730                 tmp[3]=pmtpid&0xFF;
 731                 capmt.injectDescriptor(tmp, false);
 732
 733                 tmp[0] = 0x82; // demux
 734                 tmp[1] = 0x02;
 735                 tmp[2] = demux_mask;    // descramble bitmask
 736                 tmp[3] = data_demux&0xFF; // read section data from demux number
 737                 capmt.injectDescriptor(tmp, false);
 738
 739                 tmp[0] = 0x81; // dvbnamespace
 740                 tmp[1] = 0x08;
 741                 tmp[2] = m_service.getDVBNamespace().get()>>24;
 742                 tmp[3]=(m_service.getDVBNamespace().get()>>16)&0xFF;
 743                 tmp[4]=(m_service.getDVBNamespace().get()>>8)&0xFF;
 744                 tmp[5]=m_service.getDVBNamespace().get()&0xFF;
 745                 tmp[6]=m_service.getTransportStreamID().get()>>8;
 746                 tmp[7]=m_service.getTransportStreamID().get()&0xFF;
 747                 tmp[8]=m_service.getOriginalNetworkID().get()>>8;
 748                 tmp[9]=m_service.getOriginalNetworkID().get()&0xFF;
 749                 capmt.injectDescriptor(tmp, false);
 750
 751                 capmt.writeToBuffer(m_capmt);
 752         }
 753
 754         m_prev_build_hash = build_hash;
 755
 756         if ( m_sendstate != 0xFFFFFFFF )
 757                 m_sendstate=0;
 758         sendCAPMT();
 759 }
 760
 761 void eDVBCAService::sendCAPMT()
 762 {
 763         if ( m_sendstate && m_sendstate != 0xFFFFFFFF ) // broken pipe retry
 764         {
 765                 ::close(m_sock);
 766                 Connect();
 767         }
 768
 769         int wp=0;
 770         if ( m_capmt[3] & 0x80 )
 771         {
 772                 int i=0;
 773                 int lenbytes = m_capmt[3] & ~0x80;
 774                 while(i < lenbytes)
 775                         wp = (wp << 8) | m_capmt[4 + i++];
 776                 wp+=4;
 777                 wp+=lenbytes;
 778         }
 779         else
 780         {
 781                 wp = m_capmt[3];
 782                 wp+=4;
 783         }
 784
 785         if ( write(m_sock, m_capmt, wp) == wp )
 786         {
 787                 m_sendstate=0xFFFFFFFF;
 788                 eDebug("[eDVBCAService] send %d bytes",wp);
 789 #if 1
 790                 for(int i=0;i<wp;i++)
 791                         eDebugNoNewLine("%02x ", m_capmt[i]);
 792                 eDebug("");
 793 #endif
 794         }
 795         else
 796         {
 797                 switch(m_sendstate)
 798                 {
 799                         case 0xFFFFFFFF:
 800                                 ++m_sendstate;
 801                                 m_retryTimer.start(0,true);
 802 //                              eDebug("[eDVBCAService] send failed .. immediate retry");
 803                                 break;
 804                         default:
 805                                 m_retryTimer.start(5000,true);
 806 //                              eDebug("[eDVBCAService] send failed .. retry in 5 sec");
 807                                 break;
 808                 }
 809                 ++m_sendstate;
 810         }
 811 }