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 <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                         eDVBCIInterfaces::getInstance()->gotPMT(this);
 104                 }
 105                 if (m_ca_servicePtr)
 106                 {
 107                         ePtr<eTable<ProgramMapSection> > ptr;
 108                         if (!m_PMT.getCurrent(ptr))
 109                                 m_ca_servicePtr->buildCAPMT(ptr);
 110                         else
 111                                 eDebug("eDVBServicePMTHandler cannot call buildCAPMT");
 112                 }
 113         }
 114 }
 115
 116 void eDVBServicePMTHandler::PATready(int)
 117 {
 118         ePtr<eTable<ProgramAssociationSection> > ptr;
 119         if (!m_PAT.getCurrent(ptr))
 120         {
 121                 int pmtpid = -1;
 122                 std::vector<ProgramAssociationSection*>::const_iterator i;
 123                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 124                 {
 125                         const ProgramAssociationSection &pat = **i;
 126                         ProgramAssociationConstIterator program;
 127                         for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
 128                                 if (eServiceID((*program)->getProgramNumber()) == m_reference.getServiceID())
 129                                         pmtpid = (*program)->getProgramMapPid();
 130                 }
 131                 if (pmtpid == -1)
 132                         serviceEvent(eventNoPATEntry);
 133                 else
 134                         m_PMT.begin(eApp, eDVBPMTSpec(pmtpid, m_reference.getServiceID().get()), m_demux);
 135         } else
 136                 serviceEvent(eventNoPAT);
 137 }
 138
 139 PyObject *eDVBServicePMTHandler::getCaIds()
 140 {
 141         PyObject *ret=0;
 142
 143         program prog;
 144
 145         if ( !getProgramInfo(prog) )
 146         {
 147                 int cnt=prog.caids.size();
 148                 if (cnt)
 149                 {
 150                         ret=PyList_New(cnt);
 151                         std::set<uint16_t>::iterator it(prog.caids.begin());
 152                         while(cnt--)
 153                                 PyList_SET_ITEM(ret, cnt, PyInt_FromLong(*it++));
 154                 }
 155         }
 156
 157         return ret ? ret : PyList_New(0);
 158 }
 159
 160 int eDVBServicePMTHandler::getProgramInfo(struct program &program)
 161 {
 162         ePtr<eTable<ProgramMapSection> > ptr;
 163
 164         program.videoStreams.clear();
 165         program.audioStreams.clear();
 166         program.pcrPid = -1;
 167         program.pmtPid = -1;
 168         program.textPid = -1;
 169         program.audioChannel = m_service ? m_service->getCacheEntry(eDVBService::cACHANNEL) : -1;
 170
 171         if ( ((m_service && m_service->usePMT()) || !m_service) && !m_PMT.getCurrent(ptr))
 172         {
 173                 int cached_apid_ac3 = -1;
 174                 int cached_apid_mpeg = -1;
 175                 int cached_vpid = -1;
 176                 int cached_tpid = -1;
 177                 if ( m_service && !m_service->cacheEmpty() )
 178                 {
 179                         cached_vpid = m_service->getCacheEntry(eDVBService::cVPID);
 180                         cached_apid_mpeg = m_service->getCacheEntry(eDVBService::cAC3PID);
 181                         cached_apid_ac3 = m_service->getCacheEntry(eDVBService::cAPID);
 182                         cached_tpid = m_service->getCacheEntry(eDVBService::cTPID);
 183                 }
 184                 eDVBTableSpec table_spec;
 185                 ptr->getSpec(table_spec);
 186                 program.pmtPid = table_spec.pid < 0x1fff ? table_spec.pid : -1;
 187                 std::vector<ProgramMapSection*>::const_iterator i;
 188                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 189                 {
 190                         const ProgramMapSection &pmt = **i;
 191                         program.pcrPid = pmt.getPcrPid();
 192
 193                         ElementaryStreamInfoConstIterator es;
 194                         for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
 195                         {
 196                                 int isaudio = 0, isvideo = 0;
 197                                 videoStream video;
 198                                 audioStream audio;
 199                                 audio.component_tag=-1;
 200                                 video.component_tag=-1;
 201
 202                                 video.pid = (*es)->getPid();
 203                                 audio.pid = (*es)->getPid();
 204                                 video.type = videoStream::vtMPEG2;
 205
 206                                 switch ((*es)->getType())
 207                                 {
 208                                 case 0x1b: // AVC Video Stream (MPEG4 H264)
 209                                         video.type = videoStream::vtMPEG4_H264;
 210                                 case 0x01: // MPEG 1 video
 211                                 case 0x02: // MPEG 2 video
 212                                         isvideo = 1;
 213                                         //break; fall through !!!
 214                                 case 0x03: // MPEG 1 audio
 215                                 case 0x04: // MPEG 2 audio:
 216                                         if (!isvideo)
 217                                         {
 218                                                 isaudio = 1;
 219                                                 audio.type = audioStream::atMPEG;
 220                                         }
 221                                         //break; fall through !!!
 222                                 case 0x06: // PES Private
 223                                                 /* PES private can contain AC-3, DTS or lots of other stuff.
 224                                                    check descriptors to get the exact type. */
 225                                         for (DescriptorConstIterator desc = (*es)->getDescriptors()->begin();
 226                                                         desc != (*es)->getDescriptors()->end(); ++desc)
 227                                         {
 228                                                 switch ((*desc)->getTag())
 229                                                 {
 230                                                 case TELETEXT_DESCRIPTOR:
 231                                                         if ( program.textPid == -1 || (*es)->getPid() == cached_tpid )
 232                                                                 program.textPid = (*es)->getPid();
 233                                                         break;
 234                                                 case DTS_DESCRIPTOR:
 235                                                         if (!isvideo)
 236                                                         {
 237                                                                 isaudio = 1;
 238                                                                 audio.type = audioStream::atDTS;
 239                                                         }
 240                                                         break;
 241                                                 case AAC_DESCRIPTOR:
 242                                                         if (!isvideo)
 243                                                         {
 244                                                                 isaudio = 1;
 245                                                                 audio.type = audioStream::atAAC;
 246                                                         }
 247                                                         break;
 248                                                 case AC3_DESCRIPTOR:
 249                                                         if (!isvideo)
 250                                                         {
 251                                                                 isaudio = 1;
 252                                                                 audio.type = audioStream::atAC3;
 253                                                         }
 254                                                         break;
 255                                                 case ISO_639_LANGUAGE_DESCRIPTOR:
 256                                                         if (!isvideo)
 257                                                         {
 258                                                                 const Iso639LanguageList *languages = ((Iso639LanguageDescriptor*)*desc)->getIso639Languages();
 259                                                                         /* use last language code */
 260                                                                 for (Iso639LanguageConstIterator i(languages->begin()); i != languages->end(); ++i)
 261                                                                         audio.language_code = (*i)->getIso639LanguageCode();
 262                                                         }
 263                                                         break;
 264                                                 case STREAM_IDENTIFIER_DESCRIPTOR:
 265                                                         audio.component_tag =
 266                                                                 video.component_tag =
 267                                                                         ((StreamIdentifierDescriptor*)*desc)->getComponentTag();
 268                                                         break;
 269                                                 case CA_DESCRIPTOR:
 270                                                 {
 271                                                         CaDescriptor *descr = (CaDescriptor*)(*desc);
 272                                                         program.caids.insert(descr->getCaSystemId());
 273                                                         break;
 274                                                 }
 275                                                 }
 276                                         }
 277                                         break;
 278                                 }
 279                                 if (isaudio)
 280                                 {
 281                                         if ( !program.audioStreams.empty() &&
 282                                                 ( audio.pid == cached_apid_ac3 || audio.pid == cached_apid_mpeg) )
 283                                         {
 284                                                 program.audioStreams.push_back(program.audioStreams[0]);
 285                                                 program.audioStreams[0] = audio;
 286                                         }
 287                                         else
 288                                                 program.audioStreams.push_back(audio);
 289                                 }
 290                                 else if (isvideo)
 291                                 {
 292                                         if ( !program.videoStreams.empty() && video.pid == cached_vpid )
 293                                         {
 294                                                 program.videoStreams.push_back(program.videoStreams[0]);
 295                                                 program.videoStreams[0] = video;
 296                                         }
 297                                         else
 298                                                 program.videoStreams.push_back(video);
 299                                 }
 300                                 else
 301                                         continue;
 302                         }
 303                         for (DescriptorConstIterator desc = pmt.getDescriptors()->begin();
 304                                 desc != pmt.getDescriptors()->end(); ++desc)
 305                         {
 306                                 if ((*desc)->getTag() == CA_DESCRIPTOR)
 307                                 {
 308                                         CaDescriptor *descr = (CaDescriptor*)(*desc);
 309                                         program.caids.insert(descr->getCaSystemId());
 310                                 }
 311                         }
 312                 }
 313                 return 0;
 314         } else if ( m_service && !m_service->cacheEmpty() )
 315         {
 316                 int vpid = m_service->getCacheEntry(eDVBService::cVPID),
 317                         apid_ac3 = m_service->getCacheEntry(eDVBService::cAC3PID),
 318                         apid_mpeg = m_service->getCacheEntry(eDVBService::cAPID),
 319                         pcrpid = m_service->getCacheEntry(eDVBService::cPCRPID),
 320                         tpid = m_service->getCacheEntry(eDVBService::cTPID),
 321                         vpidtype = m_service->getCacheEntry(eDVBService::cVTYPE),
 322                         cnt=0;
 323                 if ( vpidtype == -1 )
 324                         vpidtype = videoStream::vtMPEG2;
 325                 if ( vpid != -1 )
 326                 {
 327                         videoStream s;
 328                         s.pid = vpid;
 329                         s.type = vpidtype;
 330                         program.videoStreams.push_back(s);
 331                         ++cnt;
 332                 }
 333                 if ( apid_ac3 != -1 )
 334                 {
 335                         audioStream s;
 336                         s.type = audioStream::atAC3;
 337                         s.pid = apid_ac3;
 338                         program.audioStreams.push_back(s);
 339                         ++cnt;
 340                 }
 341                 if ( apid_mpeg != -1 )
 342                 {
 343                         audioStream s;
 344                         s.type = audioStream::atMPEG;
 345                         s.pid = apid_mpeg;
 346                         program.audioStreams.push_back(s);
 347                         ++cnt;
 348                 }
 349                 if ( pcrpid != -1 )
 350                 {
 351                         ++cnt;
 352                         program.pcrPid = pcrpid;
 353                 }
 354                 if ( tpid != -1 )
 355                 {
 356                         ++cnt;
 357                         program.textPid = tpid;
 358                 }
 359                 CAID_LIST &caids = m_service->m_ca;
 360                 for (CAID_LIST::iterator it(caids.begin()); it != caids.end(); ++it)
 361                         program.caids.insert(*it);
 362                 if ( cnt )
 363                         return 0;
 364         }
 365         return -1;
 366 }
 367
 368 int eDVBServicePMTHandler::getChannel(eUsePtr<iDVBChannel> &channel)
 369 {
 370         channel = m_channel;
 371         if (channel)
 372                 return 0;
 373         else
 374                 return -1;
 375 }
 376
 377 int eDVBServicePMTHandler::getDataDemux(ePtr<iDVBDemux> &demux)
 378 {
 379         demux = m_demux;
 380         if (demux)
 381                 return 0;
 382         else
 383                 return -1;
 384 }
 385
 386 int eDVBServicePMTHandler::getDecodeDemux(ePtr<iDVBDemux> &demux)
 387 {
 388         int ret=0;
 389                 /* if we're using the decoding demux as data source
 390                    (for example in pvr playbacks), return that one. */
 391         if (m_use_decode_demux)
 392         {
 393                 demux = m_demux;
 394                 return ret;
 395         }
 396
 397         ASSERT(m_channel); /* calling without a previous ::tune is certainly bad. */
 398
 399         ret = m_channel->getDemux(demux, iDVBChannel::capDecode);
 400         if (!ret)
 401                 demux->getCADemuxID(m_decode_demux_num);
 402
 403         return ret;
 404 }
 405
 406 int eDVBServicePMTHandler::getPVRChannel(ePtr<iDVBPVRChannel> &pvr_channel)
 407 {
 408         pvr_channel = m_pvr_channel;
 409         if (pvr_channel)
 410                 return 0;
 411         else
 412                 return -1;
 413 }
 414
 415 void eDVBServicePMTHandler::SDTScanEvent(int event)
 416 {
 417         switch (event)
 418         {
 419                 case eDVBScan::evtFinish:
 420                 {
 421                         ePtr<iDVBChannelList> db;
 422                         if (m_resourceManager->getChannelList(db) != 0)
 423                                 eDebug("no channel list");
 424                         else
 425                         {
 426                                 m_dvb_scan->insertInto(db, true);
 427                                 eDebug("sdt update done!");
 428                         }
 429                         break;
 430                 }
 431
 432                 default:
 433                         break;
 434         }
 435 }
 436
 437 int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref, int use_decode_demux, eCueSheet *cue)
 438 {
 439         RESULT res;
 440         m_reference = ref;
 441
 442         m_use_decode_demux = use_decode_demux;
 443
 444                 /* is this a normal (non PVR) channel? */
 445         if (ref.path.empty())
 446         {
 447                 eDVBChannelID chid;
 448                 ref.getChannelID(chid);
 449                 res = m_resourceManager->allocateChannel(chid, m_channel);
 450                 eDebug("allocate Channel: res %d", res);
 451
 452                 ePtr<iDVBChannelList> db;
 453                 if (!m_resourceManager->getChannelList(db))
 454                                 db->getService((eServiceReferenceDVB&)m_reference, m_service);
 455
 456                 if (!res)
 457                         eDVBCIInterfaces::getInstance()->addPMTHandler(this);
 458         } else
 459         {
 460                 eDVBMetaParser parser;
 461
 462                 if (parser.parseFile(ref.path))
 463                 {
 464                         eWarning("no .meta file found, trying to find PMT pid");
 465                         eDVBTSTools tstools;
 466                         if (tstools.openFile(ref.path.c_str()))
 467                                 eWarning("failed to open file");
 468                         else
 469                         {
 470                                 int service_id, pmt_pid;
 471                                 if (!tstools.findPMT(pmt_pid, service_id))
 472                                 {
 473                                         eDebug("PMT pid found on pid %04x, service id %d", pmt_pid, service_id);
 474                                         m_reference.setServiceID(service_id);
 475                                         m_pmt_pid = pmt_pid;
 476                                 }
 477                         }
 478                 } else
 479                         m_reference = parser.m_ref;
 480
 481                 eDebug("alloc PVR");
 482                         /* allocate PVR */
 483                 res = m_resourceManager->allocatePVRChannel(m_pvr_channel);
 484                 if (res)
 485                         eDebug("allocatePVRChannel failed!\n");
 486                 m_channel = m_pvr_channel;
 487         }
 488
 489         if (m_channel)
 490         {
 491                 m_channel->connectStateChange(
 492                         slot(*this, &eDVBServicePMTHandler::channelStateChanged),
 493                         m_channelStateChanged_connection);
 494                 m_last_channel_state = -1;
 495                 channelStateChanged(m_channel);
 496
 497                 m_channel->connectEvent(
 498                         slot(*this, &eDVBServicePMTHandler::channelEvent),
 499                         m_channelEvent_connection);
 500
 501                 if (ref.path.empty())
 502                 {
 503                         delete m_dvb_scan;
 504                         m_dvb_scan = new eDVBScan(m_channel, false, false);
 505                         m_dvb_scan->connectEvent(slot(*this, &eDVBServicePMTHandler::SDTScanEvent), m_scan_event_connection);
 506                 }
 507         } else
 508         {
 509                 serviceEvent(eventTuneFailed);
 510                 return res;
 511         }
 512
 513         if (m_pvr_channel)
 514         {
 515                 m_pvr_channel->setCueSheet(cue);
 516                 m_pvr_channel->playFile(ref.path.c_str());
 517         }
 518
 519         return res;
 520 }
 521
 522 void eDVBServicePMTHandler::free()
 523 {
 524         eDVBScan *tmp = m_dvb_scan;  // do a copy on stack (recursive call of free()) !!!
 525         m_dvb_scan = 0;
 526         delete m_dvb_scan;
 527
 528         if (m_ca_servicePtr)
 529         {
 530                 int demuxes[2] = {0,0};
 531                 uint8_t tmp;
 532                 m_demux->getCADemuxID(tmp);
 533                 demuxes[0]=tmp;
 534                 if (m_decode_demux_num != 0xFF)
 535                         demuxes[1]=m_decode_demux_num;
 536                 else
 537                         demuxes[1]=demuxes[0];
 538                 ePtr<eTable<ProgramMapSection> > ptr;
 539                 m_PMT.getCurrent(ptr);
 540                 eDVBCAService::unregister_service(m_reference, demuxes, ptr);
 541                 m_ca_servicePtr = 0;
 542         }
 543
 544         if (m_channel)
 545                 eDVBCIInterfaces::getInstance()->removePMTHandler(this);
 546
 547         if (m_pvr_channel)
 548         {
 549                 m_pvr_channel->stopFile();
 550                 m_pvr_channel->setCueSheet(0);
 551         }
 552         m_PMT.stop();
 553         m_PAT.stop();
 554         m_service = 0;
 555         m_channel = 0;
 556         m_pvr_channel = 0;
 557         m_demux = 0;
 558 }
 559
 560 std::map<eServiceReferenceDVB, eDVBCAService*> eDVBCAService::exist;
 561
 562 eDVBCAService::eDVBCAService()
 563         :m_prev_build_hash(0), m_sendstate(0), m_retryTimer(eApp)
 564 {
 565         memset(m_used_demux, 0xFF, sizeof(m_used_demux));
 566         CONNECT(m_retryTimer.timeout, eDVBCAService::sendCAPMT);
 567         Connect();
 568 }
 569
 570 eDVBCAService::~eDVBCAService()
 571 {
 572         eDebug("[eDVBCAService] free service %s", m_service.toString().c_str());
 573         ::close(m_sock);
 574 }
 575
 576 RESULT eDVBCAService::register_service( const eServiceReferenceDVB &ref, int demux_nums[2], eDVBCAService *&caservice )
 577 {
 578         CAServiceMap::iterator it = exist.find(ref);
 579         if ( it != exist.end() )
 580                 caservice = it->second;
 581         else
 582         {
 583                 caservice = (exist[ref]=new eDVBCAService());
 584                 caservice->m_service = ref;
 585                 eDebug("[eDVBCAService] new service %s", ref.toString().c_str() );
 586         }
 587
 588         int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 589         for (int i=0; i < loops; ++i)
 590         {
 591 // search free demux entry
 592                 int iter=0, max_demux_slots = sizeof(caservice->m_used_demux);
 593
 594                 while ( iter < max_demux_slots && caservice->m_used_demux[iter] != 0xFF )
 595                         ++iter;
 596
 597                 if ( iter < max_demux_slots )
 598                 {
 599                         caservice->m_used_demux[iter] = demux_nums[i] & 0xFF;
 600                         eDebug("[eDVBCAService] add demux %d to slot %d service %s", caservice->m_used_demux[iter], iter, ref.toString().c_str());
 601                 }
 602                 else
 603                 {
 604                         eDebug("[eDVBCAService] no more demux slots free for service %s!!", ref.toString().c_str());
 605                         return -1;
 606                 }
 607         }
 608         return 0;
 609 }
 610
 611 RESULT eDVBCAService::unregister_service( const eServiceReferenceDVB &ref, int demux_nums[2], eTable<ProgramMapSection> *ptr )
 612 {
 613         CAServiceMap::iterator it = exist.find(ref);
 614         if ( it == exist.end() )
 615         {
 616                 eDebug("[eDVBCAService] try to unregister non registered %s", ref.toString().c_str());
 617                 return -1;
 618         }
 619         else
 620         {
 621                 eDVBCAService *caservice = it->second;
 622                 int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 623                 for (int i=0; i < loops; ++i)
 624                 {
 625                         bool freed = false;
 626                         int iter = 0,
 627                                 used_demux_slots = 0,
 628                                 max_demux_slots = sizeof(caservice->m_used_demux)/sizeof(int);
 629                         while ( iter < max_demux_slots )
 630                         {
 631                                 if ( caservice->m_used_demux[iter] != 0xFF )
 632                                 {
 633                                         if ( !freed && caservice->m_used_demux[iter] == demux_nums[i] )
 634                                         {
 635                                                 eDebug("[eDVBCAService] free slot %d demux %d for service %s", iter, caservice->m_used_demux[iter], caservice->m_service.toString().c_str() );
 636                                                 caservice->m_used_demux[iter] = 0xFF;
 637                                                 freed=true;
 638                                         }
 639                                         else
 640                                                 ++used_demux_slots;
 641                                 }
 642                                 ++iter;
 643                         }
 644                         if (!freed)
 645                                 eDebug("[eDVBCAService] couldn't free demux slot for demux %d", demux_nums[i]);
 646                         if (i || loops == 1)
 647                         {
 648                                 if (!used_demux_slots)  // no more used.. so we remove it
 649                                 {
 650                                         delete it->second;
 651                                         exist.erase(it);
 652                                 }
 653                                 else
 654                                 {
 655                                         if (ptr)
 656                                                 it->second->buildCAPMT(ptr);
 657                                         else
 658                                                 eDebug("[eDVBCAService] can not send updated demux info");
 659                                 }
 660                         }
 661                 }
 662         }
 663         return 0;
 664 }
 665
 666 void eDVBCAService::Connect()
 667 {
 668         memset(&m_servaddr, 0, sizeof(struct sockaddr_un));
 669         m_servaddr.sun_family = AF_UNIX;
 670         strcpy(m_servaddr.sun_path, "/tmp/camd.socket");
 671         m_clilen = sizeof(m_servaddr.sun_family) + strlen(m_servaddr.sun_path);
 672         m_sock = socket(PF_UNIX, SOCK_STREAM, 0);
 673         connect(m_sock, (struct sockaddr *) &m_servaddr, m_clilen);
 674         fcntl(m_sock, F_SETFL, O_NONBLOCK);
 675         int val=1;
 676         setsockopt(m_sock, SOL_SOCKET, SO_REUSEADDR, &val, 4);
 677 }
 678
 679 void eDVBCAService::buildCAPMT(eTable<ProgramMapSection> *ptr)
 680 {
 681         if (!ptr)
 682                 return;
 683
 684         eDVBTableSpec table_spec;
 685         ptr->getSpec(table_spec);
 686
 687         int pmtpid = table_spec.pid,
 688                 pmt_version = table_spec.version;
 689
 690         uint8_t demux_mask = 0;
 691         int data_demux = -1;
 692
 693         int iter=0, max_demux_slots = sizeof(m_used_demux);
 694         while ( iter < max_demux_slots )
 695         {
 696                 if ( m_used_demux[iter] != 0xFF )
 697                 {
 698                         if ( m_used_demux[iter] > data_demux )
 699                                 data_demux = m_used_demux[iter];
 700                         demux_mask |= (1 << m_used_demux[iter]);
 701                 }
 702                 ++iter;
 703         }
 704
 705         if ( data_demux == -1 )
 706         {
 707                 eDebug("[eDVBCAService] no data demux found for service %s", m_service.toString().c_str() );
 708                 return;
 709         }
 710
 711         eDebug("demux %d mask %02x prevhash %08x", data_demux, demux_mask, m_prev_build_hash);
 712
 713         unsigned int build_hash = (pmtpid << 16);
 714         build_hash |= (demux_mask << 8);
 715         build_hash |= (pmt_version&0xFF);
 716
 717         if ( build_hash == m_prev_build_hash )
 718         {
 719                 eDebug("[eDVBCAService] don't build/send the same CA PMT twice");
 720                 return;
 721         }
 722
 723         std::vector<ProgramMapSection*>::const_iterator i=ptr->getSections().begin();
 724         if ( i != ptr->getSections().end() )
 725         {
 726                 CaProgramMapSection capmt(*i++, m_prev_build_hash ? 0x05 /*update*/ : 0x03 /*only*/, 0x01 );
 727
 728                 while( i != ptr->getSections().end() )
 729                 {
 730 //                      eDebug("append");
 731                         capmt.append(*i++);
 732                 }
 733
 734                 // add our private descriptors to capmt
 735                 uint8_t tmp[10];
 736
 737                 tmp[0]=0x84;  // pmt pid
 738                 tmp[1]=0x02;
 739                 tmp[2]=pmtpid>>8;
 740                 tmp[3]=pmtpid&0xFF;
 741                 capmt.injectDescriptor(tmp, false);
 742
 743                 tmp[0] = 0x82; // demux
 744                 tmp[1] = 0x02;
 745                 tmp[2] = demux_mask;    // descramble bitmask
 746                 tmp[3] = data_demux&0xFF; // read section data from demux number
 747                 capmt.injectDescriptor(tmp, false);
 748
 749                 tmp[0] = 0x81; // dvbnamespace
 750                 tmp[1] = 0x08;
 751                 tmp[2] = m_service.getDVBNamespace().get()>>24;
 752                 tmp[3]=(m_service.getDVBNamespace().get()>>16)&0xFF;
 753                 tmp[4]=(m_service.getDVBNamespace().get()>>8)&0xFF;
 754                 tmp[5]=m_service.getDVBNamespace().get()&0xFF;
 755                 tmp[6]=m_service.getTransportStreamID().get()>>8;
 756                 tmp[7]=m_service.getTransportStreamID().get()&0xFF;
 757                 tmp[8]=m_service.getOriginalNetworkID().get()>>8;
 758                 tmp[9]=m_service.getOriginalNetworkID().get()&0xFF;
 759                 capmt.injectDescriptor(tmp, false);
 760
 761                 capmt.writeToBuffer(m_capmt);
 762         }
 763
 764         m_prev_build_hash = build_hash;
 765
 766         if ( m_sendstate != 0xFFFFFFFF )
 767                 m_sendstate=0;
 768         sendCAPMT();
 769 }
 770
 771 void eDVBCAService::sendCAPMT()
 772 {
 773         if ( m_sendstate && m_sendstate != 0xFFFFFFFF ) // broken pipe retry
 774         {
 775                 ::close(m_sock);
 776                 Connect();
 777         }
 778
 779         int wp=0;
 780         if ( m_capmt[3] & 0x80 )
 781         {
 782                 int i=0;
 783                 int lenbytes = m_capmt[3] & ~0x80;
 784                 while(i < lenbytes)
 785                         wp = (wp << 8) | m_capmt[4 + i++];
 786                 wp+=4;
 787                 wp+=lenbytes;
 788         }
 789         else
 790         {
 791                 wp = m_capmt[3];
 792                 wp+=4;
 793         }
 794
 795         if ( write(m_sock, m_capmt, wp) == wp )
 796         {
 797                 m_sendstate=0xFFFFFFFF;
 798                 eDebug("[eDVBCAService] send %d bytes",wp);
 799 #if 1
 800                 for(int i=0;i<wp;i++)
 801                         eDebugNoNewLine("%02x ", m_capmt[i]);
 802                 eDebug("");
 803 #endif
 804         }
 805         else
 806         {
 807                 switch(m_sendstate)
 808                 {
 809                         case 0xFFFFFFFF:
 810                                 ++m_sendstate;
 811                                 m_retryTimer.start(0,true);
 812 //                              eDebug("[eDVBCAService] send failed .. immediate retry");
 813                                 break;
 814                         default:
 815                                 m_retryTimer.start(5000,true);
 816 //                              eDebug("[eDVBCAService] send failed .. retry in 5 sec");
 817                                 break;
 818                 }
 819                 ++m_sendstate;
 820         }
 821 }