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 <lib/dvb/scan.h>
   9 #include <dvbsi++/ca_descriptor.h>
  10 #include <dvbsi++/ca_program_map_section.h>
  11 #include <dvbsi++/teletext_descriptor.h>
  12 #include <dvbsi++/descriptor_tag.h>
  13 #include <dvbsi++/iso639_language_descriptor.h>
  14 #include <dvbsi++/stream_identifier_descriptor.h>
  15
  16 eDVBServicePMTHandler::eDVBServicePMTHandler()
  17         :m_ca_servicePtr(0), m_dvb_scan(0), m_decode_demux_num(0xFF)
  18 {
  19         m_use_decode_demux = 0;
  20         m_pmt_pid = -1;
  21         eDVBResourceManager::getInstance(m_resourceManager);
  22         CONNECT(m_PMT.tableReady, eDVBServicePMTHandler::PMTready);
  23         CONNECT(m_PAT.tableReady, eDVBServicePMTHandler::PATready);
  24 }
  25
  26 eDVBServicePMTHandler::~eDVBServicePMTHandler()
  27 {
  28         free();
  29 }
  30
  31 void eDVBServicePMTHandler::channelStateChanged(iDVBChannel *channel)
  32 {
  33         int state;
  34         channel->getState(state);
  35
  36         if ((m_last_channel_state != iDVBChannel::state_ok)
  37                 && (state == iDVBChannel::state_ok) && (!m_demux))
  38         {
  39                 if (m_channel)
  40                         if (m_channel->getDemux(m_demux, (!m_use_decode_demux) ? 0 : iDVBChannel::capDecode))
  41                                 eDebug("Allocating %s-decoding a demux for now tuned-in channel failed.", m_use_decode_demux ? "" : "non-");
  42
  43                 serviceEvent(eventTuned);
  44
  45                 if (m_demux)
  46                 {
  47                         eDebug("ok ... now we start!!");
  48
  49                         if (m_pmt_pid == -1)
  50                                 m_PAT.begin(eApp, eDVBPATSpec(), m_demux);
  51                         else
  52                                 m_PMT.begin(eApp, eDVBPMTSpec(m_pmt_pid, m_reference.getServiceID().get()), m_demux);
  53
  54                         if ( m_service && !m_service->cacheEmpty() )
  55                                 serviceEvent(eventNewProgramInfo);
  56                 }
  57         } else if ((m_last_channel_state != iDVBChannel::state_failed) &&
  58                         (state == iDVBChannel::state_failed))
  59         {
  60                 eDebug("tune failed.");
  61                 serviceEvent(eventTuneFailed);
  62         }
  63 }
  64
  65 void eDVBServicePMTHandler::channelEvent(iDVBChannel *channel, int event)
  66 {
  67         switch (event)
  68         {
  69         case iDVBChannel::evtEOF:
  70                 serviceEvent(eventEOF);
  71                 break;
  72         case iDVBChannel::evtSOF:
  73                 serviceEvent(eventSOF);
  74                 break;
  75         default:
  76                 break;
  77         }
  78 }
  79
  80 void eDVBServicePMTHandler::PMTready(int error)
  81 {
  82         if (error)
  83                 serviceEvent(eventNoPMT);
  84         else
  85         {
  86                 serviceEvent(eventNewProgramInfo);
  87                 eEPGCache::getInstance()->PMTready(this);
  88                 if (!m_pvr_channel) // don't send campmt to camd.socket for playbacked services
  89                 {
  90                         if(!m_ca_servicePtr)
  91                         {
  92                                 int demuxes[2] = {0,0};
  93                                 uint8_t tmp;
  94                                 m_demux->getCADemuxID(tmp);
  95                                 demuxes[0]=tmp;
  96                                 if (m_decode_demux_num != 0xFF)
  97                                         demuxes[1]=m_decode_demux_num;
  98                                 else
  99                                         demuxes[1]=demuxes[0];
 100                                 eDVBCAService::register_service(m_reference, demuxes, m_ca_servicePtr);
 101                                 eDVBCIInterfaces::getInstance()->recheckPMTHandlers();
 102                         }
 103                         else
 104                                 eDVBCIInterfaces::getInstance()->gotPMT(this);
 105                 }
 106                 if (m_ca_servicePtr)
 107                 {
 108                         ePtr<eTable<ProgramMapSection> > ptr;
 109                         if (!m_PMT.getCurrent(ptr))
 110                                 m_ca_servicePtr->buildCAPMT(ptr);
 111                         else
 112                                 eDebug("eDVBServicePMTHandler cannot call buildCAPMT");
 113                 }
 114         }
 115 }
 116
 117 void eDVBServicePMTHandler::PATready(int)
 118 {
 119         ePtr<eTable<ProgramAssociationSection> > ptr;
 120         if (!m_PAT.getCurrent(ptr))
 121         {
 122                 int pmtpid = -1;
 123                 std::vector<ProgramAssociationSection*>::const_iterator i;
 124                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 125                 {
 126                         const ProgramAssociationSection &pat = **i;
 127                         ProgramAssociationConstIterator program;
 128                         for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
 129                                 if (eServiceID((*program)->getProgramNumber()) == m_reference.getServiceID())
 130                                         pmtpid = (*program)->getProgramMapPid();
 131                 }
 132                 if (pmtpid == -1)
 133                         serviceEvent(eventNoPATEntry);
 134                 else
 135                         m_PMT.begin(eApp, eDVBPMTSpec(pmtpid, m_reference.getServiceID().get()), m_demux);
 136         } else
 137                 serviceEvent(eventNoPAT);
 138 }
 139
 140 PyObject *eDVBServicePMTHandler::getCaIds()
 141 {
 142         PyObject *ret=0;
 143
 144         program prog;
 145
 146         if ( !getProgramInfo(prog) )
 147         {
 148                 int cnt=prog.caids.size();
 149                 if (cnt)
 150                 {
 151                         ret=PyList_New(cnt);
 152                         std::set<uint16_t>::iterator it(prog.caids.begin());
 153                         while(cnt--)
 154                                 PyList_SET_ITEM(ret, cnt, PyInt_FromLong(*it++));
 155                 }
 156         }
 157
 158         return ret ? ret : PyList_New(0);
 159 }
 160
 161 int eDVBServicePMTHandler::getProgramInfo(struct program &program)
 162 {
 163         ePtr<eTable<ProgramMapSection> > ptr;
 164
 165         program.videoStreams.clear();
 166         program.audioStreams.clear();
 167         program.pcrPid = -1;
 168         program.pmtPid = -1;
 169         program.textPid = -1;
 170         program.audioChannel = m_service ? m_service->getCacheEntry(eDVBService::cACHANNEL) : -1;
 171
 172         if ( ((m_service && m_service->usePMT()) || !m_service) && !m_PMT.getCurrent(ptr))
 173         {
 174                 int cached_apid_ac3 = -1;
 175                 int cached_apid_mpeg = -1;
 176                 int cached_vpid = -1;
 177                 int cached_tpid = -1;
 178                 if ( m_service && !m_service->cacheEmpty() )
 179                 {
 180                         cached_vpid = m_service->getCacheEntry(eDVBService::cVPID);
 181                         cached_apid_mpeg = m_service->getCacheEntry(eDVBService::cAC3PID);
 182                         cached_apid_ac3 = m_service->getCacheEntry(eDVBService::cAPID);
 183                         cached_tpid = m_service->getCacheEntry(eDVBService::cTPID);
 184                 }
 185                 eDVBTableSpec table_spec;
 186                 ptr->getSpec(table_spec);
 187                 program.pmtPid = table_spec.pid < 0x1fff ? table_spec.pid : -1;
 188                 std::vector<ProgramMapSection*>::const_iterator i;
 189                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 190                 {
 191                         const ProgramMapSection &pmt = **i;
 192                         program.pcrPid = pmt.getPcrPid();
 193
 194                         ElementaryStreamInfoConstIterator es;
 195                         for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
 196                         {
 197                                 int isaudio = 0, isvideo = 0;
 198                                 videoStream video;
 199                                 audioStream audio;
 200                                 audio.component_tag=-1;
 201                                 video.component_tag=-1;
 202
 203                                 video.pid = (*es)->getPid();
 204                                 audio.pid = (*es)->getPid();
 205                                 video.type = videoStream::vtMPEG2;
 206
 207                                 switch ((*es)->getType())
 208                                 {
 209                                 case 0x1b: // AVC Video Stream (MPEG4 H264)
 210                                         video.type = videoStream::vtMPEG4_H264;
 211                                 case 0x01: // MPEG 1 video
 212                                 case 0x02: // MPEG 2 video
 213                                         isvideo = 1;
 214                                         //break; fall through !!!
 215                                 case 0x03: // MPEG 1 audio
 216                                 case 0x04: // MPEG 2 audio:
 217                                         if (!isvideo)
 218                                         {
 219                                                 isaudio = 1;
 220                                                 audio.type = audioStream::atMPEG;
 221                                         }
 222                                         //break; fall through !!!
 223                                 case 0x06: // PES Private
 224                                                 /* PES private can contain AC-3, DTS or lots of other stuff.
 225                                                    check descriptors to get the exact type. */
 226                                         for (DescriptorConstIterator desc = (*es)->getDescriptors()->begin();
 227                                                         desc != (*es)->getDescriptors()->end(); ++desc)
 228                                         {
 229                                                 switch ((*desc)->getTag())
 230                                                 {
 231                                                 case TELETEXT_DESCRIPTOR:
 232                                                         if ( program.textPid == -1 || (*es)->getPid() == cached_tpid )
 233                                                                 program.textPid = (*es)->getPid();
 234                                                         break;
 235                                                 case DTS_DESCRIPTOR:
 236                                                         if (!isvideo)
 237                                                         {
 238                                                                 isaudio = 1;
 239                                                                 audio.type = audioStream::atDTS;
 240                                                         }
 241                                                         break;
 242                                                 case AAC_DESCRIPTOR:
 243                                                         if (!isvideo)
 244                                                         {
 245                                                                 isaudio = 1;
 246                                                                 audio.type = audioStream::atAAC;
 247                                                         }
 248                                                         break;
 249                                                 case AC3_DESCRIPTOR:
 250                                                         if (!isvideo)
 251                                                         {
 252                                                                 isaudio = 1;
 253                                                                 audio.type = audioStream::atAC3;
 254                                                         }
 255                                                         break;
 256                                                 case ISO_639_LANGUAGE_DESCRIPTOR:
 257                                                         if (!isvideo)
 258                                                         {
 259                                                                 const Iso639LanguageList *languages = ((Iso639LanguageDescriptor*)*desc)->getIso639Languages();
 260                                                                         /* use last language code */
 261                                                                 for (Iso639LanguageConstIterator i(languages->begin()); i != languages->end(); ++i)
 262                                                                         audio.language_code = (*i)->getIso639LanguageCode();
 263                                                         }
 264                                                         break;
 265                                                 case STREAM_IDENTIFIER_DESCRIPTOR:
 266                                                         audio.component_tag =
 267                                                                 video.component_tag =
 268                                                                         ((StreamIdentifierDescriptor*)*desc)->getComponentTag();
 269                                                         break;
 270                                                 case CA_DESCRIPTOR:
 271                                                 {
 272                                                         CaDescriptor *descr = (CaDescriptor*)(*desc);
 273                                                         program.caids.insert(descr->getCaSystemId());
 274                                                         break;
 275                                                 }
 276                                                 }
 277                                         }
 278                                         break;
 279                                 }
 280                                 if (isaudio)
 281                                 {
 282                                         if ( !program.audioStreams.empty() &&
 283                                                 ( audio.pid == cached_apid_ac3 || audio.pid == cached_apid_mpeg) )
 284                                         {
 285                                                 program.audioStreams.push_back(program.audioStreams[0]);
 286                                                 program.audioStreams[0] = audio;
 287                                         }
 288                                         else
 289                                                 program.audioStreams.push_back(audio);
 290                                 }
 291                                 else if (isvideo)
 292                                 {
 293                                         if ( !program.videoStreams.empty() && video.pid == cached_vpid )
 294                                         {
 295                                                 program.videoStreams.push_back(program.videoStreams[0]);
 296                                                 program.videoStreams[0] = video;
 297                                         }
 298                                         else
 299                                                 program.videoStreams.push_back(video);
 300                                 }
 301                                 else
 302                                         continue;
 303                         }
 304                         for (DescriptorConstIterator desc = pmt.getDescriptors()->begin();
 305                                 desc != pmt.getDescriptors()->end(); ++desc)
 306                         {
 307                                 if ((*desc)->getTag() == CA_DESCRIPTOR)
 308                                 {
 309                                         CaDescriptor *descr = (CaDescriptor*)(*desc);
 310                                         program.caids.insert(descr->getCaSystemId());
 311                                 }
 312                         }
 313                 }
 314                 return 0;
 315         } else if ( m_service && !m_service->cacheEmpty() )
 316         {
 317                 int vpid = m_service->getCacheEntry(eDVBService::cVPID),
 318                         apid_ac3 = m_service->getCacheEntry(eDVBService::cAC3PID),
 319                         apid_mpeg = m_service->getCacheEntry(eDVBService::cAPID),
 320                         pcrpid = m_service->getCacheEntry(eDVBService::cPCRPID),
 321                         tpid = m_service->getCacheEntry(eDVBService::cTPID),
 322                         vpidtype = m_service->getCacheEntry(eDVBService::cVTYPE),
 323                         cnt=0;
 324                 if ( vpidtype == -1 )
 325                         vpidtype = videoStream::vtMPEG2;
 326                 if ( vpid != -1 )
 327                 {
 328                         videoStream s;
 329                         s.pid = vpid;
 330                         s.type = vpidtype;
 331                         program.videoStreams.push_back(s);
 332                         ++cnt;
 333                 }
 334                 if ( apid_ac3 != -1 )
 335                 {
 336                         audioStream s;
 337                         s.type = audioStream::atAC3;
 338                         s.pid = apid_ac3;
 339                         program.audioStreams.push_back(s);
 340                         ++cnt;
 341                 }
 342                 if ( apid_mpeg != -1 )
 343                 {
 344                         audioStream s;
 345                         s.type = audioStream::atMPEG;
 346                         s.pid = apid_mpeg;
 347                         program.audioStreams.push_back(s);
 348                         ++cnt;
 349                 }
 350                 if ( pcrpid != -1 )
 351                 {
 352                         ++cnt;
 353                         program.pcrPid = pcrpid;
 354                 }
 355                 if ( tpid != -1 )
 356                 {
 357                         ++cnt;
 358                         program.textPid = tpid;
 359                 }
 360                 CAID_LIST &caids = m_service->m_ca;
 361                 for (CAID_LIST::iterator it(caids.begin()); it != caids.end(); ++it)
 362                         program.caids.insert(*it);
 363                 if ( cnt )
 364                         return 0;
 365         }
 366         return -1;
 367 }
 368
 369 int eDVBServicePMTHandler::getChannel(eUsePtr<iDVBChannel> &channel)
 370 {
 371         channel = m_channel;
 372         if (channel)
 373                 return 0;
 374         else
 375                 return -1;
 376 }
 377
 378 int eDVBServicePMTHandler::getDataDemux(ePtr<iDVBDemux> &demux)
 379 {
 380         demux = m_demux;
 381         if (demux)
 382                 return 0;
 383         else
 384                 return -1;
 385 }
 386
 387 int eDVBServicePMTHandler::getDecodeDemux(ePtr<iDVBDemux> &demux)
 388 {
 389         int ret=0;
 390                 /* if we're using the decoding demux as data source
 391                    (for example in pvr playbacks), return that one. */
 392         if (m_use_decode_demux)
 393         {
 394                 demux = m_demux;
 395                 return ret;
 396         }
 397
 398         ASSERT(m_channel); /* calling without a previous ::tune is certainly bad. */
 399
 400         ret = m_channel->getDemux(demux, iDVBChannel::capDecode);
 401         if (!ret)
 402                 demux->getCADemuxID(m_decode_demux_num);
 403
 404         return ret;
 405 }
 406
 407 int eDVBServicePMTHandler::getPVRChannel(ePtr<iDVBPVRChannel> &pvr_channel)
 408 {
 409         pvr_channel = m_pvr_channel;
 410         if (pvr_channel)
 411                 return 0;
 412         else
 413                 return -1;
 414 }
 415
 416 void eDVBServicePMTHandler::SDTScanEvent(int event)
 417 {
 418         switch (event)
 419         {
 420                 case eDVBScan::evtFinish:
 421                 {
 422                         ePtr<iDVBChannelList> db;
 423                         if (m_resourceManager->getChannelList(db) != 0)
 424                                 eDebug("no channel list");
 425                         else
 426                         {
 427                                 m_dvb_scan->insertInto(db, true);
 428                                 eDebug("sdt update done!");
 429                         }
 430                         break;
 431                 }
 432
 433                 default:
 434                         break;
 435         }
 436 }
 437
 438 int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref, int use_decode_demux, eCueSheet *cue)
 439 {
 440         RESULT res;
 441         m_reference = ref;
 442
 443         m_use_decode_demux = use_decode_demux;
 444
 445                 /* is this a normal (non PVR) channel? */
 446         if (ref.path.empty())
 447         {
 448                 eDVBChannelID chid;
 449                 ref.getChannelID(chid);
 450                 res = m_resourceManager->allocateChannel(chid, m_channel);
 451                 eDebug("allocate Channel: res %d", res);
 452                 eDVBCIInterfaces::getInstance()->addPMTHandler(this);
 453         } else
 454         {
 455                 eDVBMetaParser parser;
 456
 457                 if (parser.parseFile(ref.path))
 458                 {
 459                         eWarning("no .meta file found, trying to find PMT pid");
 460                         eDVBTSTools tstools;
 461                         if (tstools.openFile(ref.path.c_str()))
 462                                 eWarning("failed to open file");
 463                         else
 464                         {
 465                                 int service_id, pmt_pid;
 466                                 if (!tstools.findPMT(pmt_pid, service_id))
 467                                 {
 468                                         eDebug("PMT pid found on pid %04x, service id %d", pmt_pid, service_id);
 469                                         m_reference.setServiceID(service_id);
 470                                         m_pmt_pid = pmt_pid;
 471                                 }
 472                         }
 473                 } else
 474                         m_reference = parser.m_ref;
 475
 476                 eDebug("alloc PVR");
 477                         /* allocate PVR */
 478                 res = m_resourceManager->allocatePVRChannel(m_pvr_channel);
 479                 if (res)
 480                         eDebug("allocatePVRChannel failed!\n");
 481                 m_channel = m_pvr_channel;
 482         }
 483
 484         ePtr<iDVBChannelList> db;
 485         if (!m_resourceManager->getChannelList(db))
 486                 db->getService((eServiceReferenceDVB&)m_reference, m_service);
 487
 488         if (m_channel)
 489         {
 490                 m_channel->connectStateChange(
 491                         slot(*this, &eDVBServicePMTHandler::channelStateChanged),
 492                         m_channelStateChanged_connection);
 493                 m_last_channel_state = -1;
 494                 channelStateChanged(m_channel);
 495
 496                 m_channel->connectEvent(
 497                         slot(*this, &eDVBServicePMTHandler::channelEvent),
 498                         m_channelEvent_connection);
 499
 500                 if (ref.path.empty())
 501                 {
 502                         delete m_dvb_scan;
 503                         m_dvb_scan = new eDVBScan(m_channel, false);
 504                         m_dvb_scan->connectEvent(slot(*this, &eDVBServicePMTHandler::SDTScanEvent), m_scan_event_connection);
 505                 }
 506         } else
 507         {
 508                 serviceEvent(eventTuneFailed);
 509                 return res;
 510         }
 511
 512         if (m_pvr_channel)
 513         {
 514                 m_pvr_channel->setCueSheet(cue);
 515                 m_pvr_channel->playFile(ref.path.c_str());
 516         }
 517
 518         return res;
 519 }
 520
 521 void eDVBServicePMTHandler::free()
 522 {
 523         eDVBScan *tmp = m_dvb_scan;  // do a copy on stack (recursive call of free()) !!!
 524         m_dvb_scan = 0;
 525         delete m_dvb_scan;
 526
 527         if (m_ca_servicePtr)
 528         {
 529                 int demuxes[2] = {0,0};
 530                 uint8_t tmp;
 531                 m_demux->getCADemuxID(tmp);
 532                 demuxes[0]=tmp;
 533                 if (m_decode_demux_num != 0xFF)
 534                         demuxes[1]=m_decode_demux_num;
 535                 else
 536                         demuxes[1]=demuxes[0];
 537                 ePtr<eTable<ProgramMapSection> > ptr;
 538                 m_PMT.getCurrent(ptr);
 539                 eDVBCAService::unregister_service(m_reference, demuxes, ptr);
 540                 eDVBCIInterfaces::getInstance()->removePMTHandler(this);
 541                 m_ca_servicePtr = 0;
 542         }
 543
 544         if (m_pvr_channel)
 545         {
 546                 m_pvr_channel->stopFile();
 547                 m_pvr_channel->setCueSheet(0);
 548         }
 549         m_PMT.stop();
 550         m_PAT.stop();
 551         m_service = 0;
 552         m_channel = 0;
 553         m_pvr_channel = 0;
 554         m_demux = 0;
 555 }
 556
 557 std::map<eServiceReferenceDVB, eDVBCAService*> eDVBCAService::exist;
 558
 559 eDVBCAService::eDVBCAService()
 560         :m_prev_build_hash(0), m_sendstate(0), m_retryTimer(eApp)
 561 {
 562         memset(m_used_demux, 0xFF, sizeof(m_used_demux));
 563         CONNECT(m_retryTimer.timeout, eDVBCAService::sendCAPMT);
 564         Connect();
 565 }
 566
 567 eDVBCAService::~eDVBCAService()
 568 {
 569         eDebug("[eDVBCAService] free service %s", m_service.toString().c_str());
 570         ::close(m_sock);
 571 }
 572
 573 RESULT eDVBCAService::register_service( const eServiceReferenceDVB &ref, int demux_nums[2], eDVBCAService *&caservice )
 574 {
 575         CAServiceMap::iterator it = exist.find(ref);
 576         if ( it != exist.end() )
 577                 caservice = it->second;
 578         else
 579         {
 580                 caservice = (exist[ref]=new eDVBCAService());
 581                 caservice->m_service = ref;
 582                 eDebug("[eDVBCAService] new service %s", ref.toString().c_str() );
 583         }
 584
 585         int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 586         for (int i=0; i < loops; ++i)
 587         {
 588 // search free demux entry
 589                 int iter=0, max_demux_slots = sizeof(caservice->m_used_demux);
 590
 591                 while ( iter < max_demux_slots && caservice->m_used_demux[iter] != 0xFF )
 592                         ++iter;
 593
 594                 if ( iter < max_demux_slots )
 595                 {
 596                         caservice->m_used_demux[iter] = demux_nums[i] & 0xFF;
 597                         eDebug("[eDVBCAService] add demux %d to slot %d service %s", caservice->m_used_demux[iter], iter, ref.toString().c_str());
 598                 }
 599                 else
 600                 {
 601                         eDebug("[eDVBCAService] no more demux slots free for service %s!!", ref.toString().c_str());
 602                         return -1;
 603                 }
 604         }
 605         return 0;
 606 }
 607
 608 RESULT eDVBCAService::unregister_service( const eServiceReferenceDVB &ref, int demux_nums[2], eTable<ProgramMapSection> *ptr )
 609 {
 610         CAServiceMap::iterator it = exist.find(ref);
 611         if ( it == exist.end() )
 612         {
 613                 eDebug("[eDVBCAService] try to unregister non registered %s", ref.toString().c_str());
 614                 return -1;
 615         }
 616         else
 617         {
 618                 eDVBCAService *caservice = it->second;
 619                 int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 620                 for (int i=0; i < loops; ++i)
 621                 {
 622                         bool freed = false;
 623                         int iter = 0,
 624                                 used_demux_slots = 0,
 625                                 max_demux_slots = sizeof(caservice->m_used_demux)/sizeof(int);
 626                         while ( iter < max_demux_slots )
 627                         {
 628                                 if ( caservice->m_used_demux[iter] != 0xFF )
 629                                 {
 630                                         if ( !freed && caservice->m_used_demux[iter] == demux_nums[i] )
 631                                         {
 632                                                 eDebug("[eDVBCAService] free slot %d demux %d for service %s", iter, caservice->m_used_demux[iter], caservice->m_service.toString().c_str() );
 633                                                 caservice->m_used_demux[iter] = 0xFF;
 634                                                 freed=true;
 635                                         }
 636                                         else
 637                                                 ++used_demux_slots;
 638                                 }
 639                                 ++iter;
 640                         }
 641                         if (!freed)
 642                                 eDebug("[eDVBCAService] couldn't free demux slot for demux %d", demux_nums[i]);
 643                         if (i || loops == 1)
 644                         {
 645                                 if (!used_demux_slots)  // no more used.. so we remove it
 646                                 {
 647                                         delete it->second;
 648                                         exist.erase(it);
 649                                 }
 650                                 else
 651                                 {
 652                                         if (ptr)
 653                                                 it->second->buildCAPMT(ptr);
 654                                         else
 655                                                 eDebug("[eDVBCAService] can not send updated demux info");
 656                                 }
 657                         }
 658                 }
 659         }
 660         return 0;
 661 }
 662
 663 void eDVBCAService::Connect()
 664 {
 665         memset(&m_servaddr, 0, sizeof(struct sockaddr_un));
 666         m_servaddr.sun_family = AF_UNIX;
 667         strcpy(m_servaddr.sun_path, "/tmp/camd.socket");
 668         m_clilen = sizeof(m_servaddr.sun_family) + strlen(m_servaddr.sun_path);
 669         m_sock = socket(PF_UNIX, SOCK_STREAM, 0);
 670         connect(m_sock, (struct sockaddr *) &m_servaddr, m_clilen);
 671         fcntl(m_sock, F_SETFL, O_NONBLOCK);
 672         int val=1;
 673         setsockopt(m_sock, SOL_SOCKET, SO_REUSEADDR, &val, 4);
 674 }
 675
 676 void eDVBCAService::buildCAPMT(eTable<ProgramMapSection> *ptr)
 677 {
 678         if (!ptr)
 679                 return;
 680
 681         eDVBTableSpec table_spec;
 682         ptr->getSpec(table_spec);
 683
 684         int pmtpid = table_spec.pid,
 685                 pmt_version = table_spec.version;
 686
 687         uint8_t demux_mask = 0;
 688         int data_demux = -1;
 689
 690         int iter=0, max_demux_slots = sizeof(m_used_demux);
 691         while ( iter < max_demux_slots )
 692         {
 693                 if ( m_used_demux[iter] != 0xFF )
 694                 {
 695                         if ( m_used_demux[iter] > data_demux )
 696                                 data_demux = m_used_demux[iter];
 697                         demux_mask |= (1 << m_used_demux[iter]);
 698                 }
 699                 ++iter;
 700         }
 701
 702         if ( data_demux == -1 )
 703         {
 704                 eDebug("[eDVBCAService] no data demux found for service %s", m_service.toString().c_str() );
 705                 return;
 706         }
 707
 708         eDebug("demux %d mask %02x prevhash %08x", data_demux, demux_mask, m_prev_build_hash);
 709
 710         unsigned int build_hash = (pmtpid << 16);
 711         build_hash |= (demux_mask << 8);
 712         build_hash |= (pmt_version&0xFF);
 713
 714         if ( build_hash == m_prev_build_hash )
 715         {
 716                 eDebug("[eDVBCAService] don't build/send the same CA PMT twice");
 717                 return;
 718         }
 719
 720         std::vector<ProgramMapSection*>::const_iterator i=ptr->getSections().begin();
 721         if ( i != ptr->getSections().end() )
 722         {
 723                 CaProgramMapSection capmt(*i++, m_prev_build_hash ? 0x05 /*update*/ : 0x03 /*only*/, 0x01 );
 724
 725                 while( i != ptr->getSections().end() )
 726                 {
 727 //                      eDebug("append");
 728                         capmt.append(*i++);
 729                 }
 730
 731                 // add our private descriptors to capmt
 732                 uint8_t tmp[10];
 733
 734                 tmp[0]=0x84;  // pmt pid
 735                 tmp[1]=0x02;
 736                 tmp[2]=pmtpid>>8;
 737                 tmp[3]=pmtpid&0xFF;
 738                 capmt.injectDescriptor(tmp, false);
 739
 740                 tmp[0] = 0x82; // demux
 741                 tmp[1] = 0x02;
 742                 tmp[2] = demux_mask;    // descramble bitmask
 743                 tmp[3] = data_demux&0xFF; // read section data from demux number
 744                 capmt.injectDescriptor(tmp, false);
 745
 746                 tmp[0] = 0x81; // dvbnamespace
 747                 tmp[1] = 0x08;
 748                 tmp[2] = m_service.getDVBNamespace().get()>>24;
 749                 tmp[3]=(m_service.getDVBNamespace().get()>>16)&0xFF;
 750                 tmp[4]=(m_service.getDVBNamespace().get()>>8)&0xFF;
 751                 tmp[5]=m_service.getDVBNamespace().get()&0xFF;
 752                 tmp[6]=m_service.getTransportStreamID().get()>>8;
 753                 tmp[7]=m_service.getTransportStreamID().get()&0xFF;
 754                 tmp[8]=m_service.getOriginalNetworkID().get()>>8;
 755                 tmp[9]=m_service.getOriginalNetworkID().get()&0xFF;
 756                 capmt.injectDescriptor(tmp, false);
 757
 758                 capmt.writeToBuffer(m_capmt);
 759         }
 760
 761         m_prev_build_hash = build_hash;
 762
 763         if ( m_sendstate != 0xFFFFFFFF )
 764                 m_sendstate=0;
 765         sendCAPMT();
 766 }
 767
 768 void eDVBCAService::sendCAPMT()
 769 {
 770         if ( m_sendstate && m_sendstate != 0xFFFFFFFF ) // broken pipe retry
 771         {
 772                 ::close(m_sock);
 773                 Connect();
 774         }
 775
 776         int wp=0;
 777         if ( m_capmt[3] & 0x80 )
 778         {
 779                 int i=0;
 780                 int lenbytes = m_capmt[3] & ~0x80;
 781                 while(i < lenbytes)
 782                         wp = (wp << 8) | m_capmt[4 + i++];
 783                 wp+=4;
 784                 wp+=lenbytes;
 785         }
 786         else
 787         {
 788                 wp = m_capmt[3];
 789                 wp+=4;
 790         }
 791
 792         if ( write(m_sock, m_capmt, wp) == wp )
 793         {
 794                 m_sendstate=0xFFFFFFFF;
 795                 eDebug("[eDVBCAService] send %d bytes",wp);
 796 #if 1
 797                 for(int i=0;i<wp;i++)
 798                         eDebugNoNewLine("%02x ", m_capmt[i]);
 799                 eDebug("");
 800 #endif
 801         }
 802         else
 803         {
 804                 switch(m_sendstate)
 805                 {
 806                         case 0xFFFFFFFF:
 807                                 ++m_sendstate;
 808                                 m_retryTimer.start(0,true);
 809 //                              eDebug("[eDVBCAService] send failed .. immediate retry");
 810                                 break;
 811                         default:
 812                                 m_retryTimer.start(5000,true);
 813 //                              eDebug("[eDVBCAService] send failed .. retry in 5 sec");
 814                                 break;
 815                 }
 816                 ++m_sendstate;
 817         }
 818 }