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