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                 {
 127                         if ( m_reference.path.find(".ts") != std::string::npos ) // recorded ts
 128                         {
 129                                 // we try to find manual the correct sid
 130                                 int fd = open( m_reference.path.c_str(), O_RDONLY|O_LARGEFILE );
 131                                 if ( fd < 0 )
 132                                         eDebug("open %s failed");
 133                                 else
 134                                 {
 135                                         eDebug("parse ts file for find the correct pmtpid");
 136                                         unsigned char *buf = new unsigned char[256*1024]; // 256 kbyte
 137                                         int rd=0;
 138                                         while ( pmtpid == -1 && (rd < 1024*1024*5) )
 139                                         {
 140 #define MAX_PIDS 64
 141                                                 int pids[MAX_PIDS];
 142                                                 int pididx=-1;
 143                                                 int r = ::read( fd, buf, 256*1024 );
 144                                                 if ( r <= 0 )
 145                                                         break;
 146                                                 rd+=r;
 147                                                 int cnt=0;
 148                                                 while(cnt < r)
 149                                                 {
 150                                                         while ( (buf[cnt] != 0x47) && ((cnt+188) < r) && (buf[cnt+188] != 0x47) )
 151                                                         {
 152 //                                                              eDebug("search sync byte %02x %02x, %d %d", buf[cnt], buf[cnt+188], cnt+188, r);
 153                                                                 cnt++;
 154                                                         }
 155                                                         if ( buf[cnt] == 0x47 )
 156                                                         {
 157                                                                 int pid = ((buf[cnt+1]&0x3F) << 8) | buf[cnt+2];
 158                                                                 int idx=0;
 159                                                                 while(idx <= pididx)  // check if we already have this pid
 160                                                                 {
 161                                                                         if ( pids[idx] == pid )
 162                                                                                 break;
 163                                                                         ++idx;
 164                                                                 }
 165                                                                 if (idx > pididx && (pididx+1) < MAX_PIDS)
 166                                                                 {
 167                                                                         eDebug("found pid %04x", pid);
 168                                                                         pids[++pididx]=pid;
 169                                                                 }
 170                                                                 cnt+=188;
 171                                                         }
 172                                                         else
 173                                                                 break;
 174                                                 }
 175                                                 while(pididx > -1 && pmtpid == -1)
 176                                                 {
 177                                                         for (i = ptr->getSections().begin(); i != ptr->getSections().end() && pmtpid == -1; ++i)
 178                                                         {
 179                                                                 const ProgramAssociationSection &pat = **i;
 180                                                                 ProgramAssociationConstIterator program;
 181                                                                 for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
 182                                                                 {
 183                                                                         int pid = (*program)->getProgramMapPid();
 184                                                                         if ( pid == pids[pididx])
 185                                                                         {
 186                                                                                 int sid = (*program)->getProgramNumber();
 187                                                                                 pmtpid = pid;
 188                                                                                 m_reference.setServiceID(eServiceID(sid));
 189                                                                                 eDebug("found pmt for service id %04x with pid %04x", sid, pid);
 190                                                                                 break;
 191                                                                         }
 192                                                                 }
 193                                                         }
 194                                                         --pididx;
 195                                                 }
 196                                         }
 197                                         delete [] buf;
 198                                         close(fd);
 199                                 }
 200                         }
 201                 }
 202
 203                 if (pmtpid == -1)
 204                         serviceEvent(eventNoPATEntry);
 205                 else
 206                         m_PMT.begin(eApp, eDVBPMTSpec(pmtpid, m_reference.getServiceID().get()), m_demux);
 207         } else
 208                 serviceEvent(eventNoPAT);
 209 }
 210
 211 int eDVBServicePMTHandler::getProgramInfo(struct program &program)
 212 {
 213         ePtr<eTable<ProgramMapSection> > ptr;
 214
 215         program.videoStreams.clear();
 216         program.audioStreams.clear();
 217         program.pcrPid = -1;
 218         program.isCrypted = false;
 219         program.pmtPid = -1;
 220         program.textPid = -1;
 221
 222         if (!m_PMT.getCurrent(ptr))
 223         {
 224                 int cached_apid_ac3 = -1;
 225                 int cached_apid_mpeg = -1;
 226                 int cached_vpid = -1;
 227                 int cached_tpid = -1;
 228                 if ( m_service && !m_service->cacheEmpty() )
 229                 {
 230                         cached_vpid = m_service->getCachePID(eDVBService::cVPID);
 231                         cached_apid_mpeg = m_service->getCachePID(eDVBService::cAC3PID);
 232                         cached_apid_ac3 = m_service->getCachePID(eDVBService::cAPID);
 233                         cached_tpid = m_service->getCachePID(eDVBService::cTPID);
 234                 }
 235                 eDVBTableSpec table_spec;
 236                 ptr->getSpec(table_spec);
 237                 program.pmtPid = table_spec.pid < 0x1fff ? table_spec.pid : -1;
 238                 std::vector<ProgramMapSection*>::const_iterator i;
 239                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 240                 {
 241                         const ProgramMapSection &pmt = **i;
 242                         program.pcrPid = pmt.getPcrPid();
 243
 244                         ElementaryStreamInfoConstIterator es;
 245                         for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
 246                         {
 247                                 int isaudio = 0, isvideo = 0, cadescriptors = 0;
 248                                 videoStream video;
 249                                 audioStream audio;
 250                                 audio.component_tag=-1;
 251                                 video.component_tag=-1;
 252
 253                                 video.pid = (*es)->getPid();
 254                                 audio.pid = (*es)->getPid();
 255
 256                                 switch ((*es)->getType())
 257                                 {
 258                                 case 0x01: // MPEG 1 video
 259                                 case 0x02: // MPEG 2 video
 260                                         isvideo = 1;
 261                                         //break; fall through !!!
 262                                 case 0x03: // MPEG 1 audio
 263                                 case 0x04: // MPEG 2 audio:
 264                                         if (!isvideo)
 265                                         {
 266                                                 isaudio = 1;
 267                                                 audio.type = audioStream::atMPEG;
 268                                         }
 269                                         //break; fall through !!!
 270                                 case 0x06: // PES Private
 271                                                 /* PES private can contain AC-3, DTS or lots of other stuff.
 272                                                    check descriptors to get the exact type. */
 273                                         for (DescriptorConstIterator desc = (*es)->getDescriptors()->begin();
 274                                                         desc != (*es)->getDescriptors()->end(); ++desc)
 275                                         {
 276                                                 switch ((*desc)->getTag())
 277                                                 {
 278                                                 case TELETEXT_DESCRIPTOR:
 279                                                         if ( program.textPid == -1 || (*es)->getPid() == cached_tpid )
 280                                                                 program.textPid = (*es)->getPid();
 281                                                         break;
 282                                                 case AC3_DESCRIPTOR:
 283                                                         if (!isvideo)
 284                                                         {
 285                                                                 isaudio = 1;
 286                                                                 audio.type = audioStream::atAC3;
 287                                                         }
 288                                                         break;
 289                                                 case ISO_639_LANGUAGE_DESCRIPTOR:
 290                                                         if (!isvideo)
 291                                                         {
 292                                                                 const Iso639LanguageList *languages = ((Iso639LanguageDescriptor*)*desc)->getIso639Languages();
 293                                                                         /* use last language code */
 294                                                                 for (Iso639LanguageConstIterator i(languages->begin()); i != languages->end(); ++i)
 295                                                                         audio.language_code = (*i)->getIso639LanguageCode();
 296                                                         }
 297                                                         break;
 298                                                 case STREAM_IDENTIFIER_DESCRIPTOR:
 299                                                         audio.component_tag =
 300                                                                 video.component_tag =
 301                                                                         ((StreamIdentifierDescriptor*)*desc)->getComponentTag();
 302                                                         break;
 303                                                 case CA_DESCRIPTOR:
 304                                                         ++cadescriptors;
 305                                                         break;
 306                                                 }
 307                                         }
 308                                         break;
 309                                 }
 310                                 if (isaudio)
 311                                 {
 312                                         if ( !program.audioStreams.empty() &&
 313                                                 ( audio.pid == cached_apid_ac3 || audio.pid == cached_apid_mpeg) )
 314                                         {
 315                                                 program.audioStreams.push_back(program.audioStreams[0]);
 316                                                 program.audioStreams[0] = audio;
 317                                         }
 318                                         else
 319                                                 program.audioStreams.push_back(audio);
 320                                 }
 321                                 else if (isvideo)
 322                                 {
 323                                         if ( !program.videoStreams.empty() && video.pid == cached_vpid )
 324                                         {
 325                                                 program.videoStreams.push_back(program.videoStreams[0]);
 326                                                 program.videoStreams[0] = video;
 327                                         }
 328                                         else
 329                                                 program.videoStreams.push_back(video);
 330                                 }
 331                                 else
 332                                         continue;
 333                                 if ( cadescriptors > 0 )
 334                                         program.isCrypted=true;
 335                         }
 336                         if ( !program.isCrypted )
 337                         {
 338                                 for (DescriptorConstIterator desc = pmt.getDescriptors()->begin();
 339                                         desc != pmt.getDescriptors()->end(); ++desc)
 340                                 {
 341                                         switch ((*desc)->getTag())
 342                                         {
 343                                         case CA_DESCRIPTOR:
 344                                                 program.isCrypted=true;
 345                                                 break;
 346                                         }
 347                                 }
 348                                 break;
 349                         }
 350                 }
 351                 return 0;
 352         } else if ( m_service && !m_service->cacheEmpty() )
 353         {
 354                 int vpid = m_service->getCachePID(eDVBService::cVPID),
 355                         apid_ac3 = m_service->getCachePID(eDVBService::cAC3PID),
 356                         apid_mpeg = m_service->getCachePID(eDVBService::cAPID),
 357                         pcrpid = m_service->getCachePID(eDVBService::cPCRPID),
 358                         tpid = m_service->getCachePID(eDVBService::cTPID),
 359                         cnt=0;
 360                 if ( vpid != -1 )
 361                 {
 362                         videoStream s;
 363                         s.pid = vpid;
 364                         program.videoStreams.push_back(s);
 365                         ++cnt;
 366                 }
 367                 if ( apid_ac3 != -1 )
 368                 {
 369                         audioStream s;
 370                         s.type = audioStream::atAC3;
 371                         s.pid = apid_ac3;
 372                         program.audioStreams.push_back(s);
 373                         ++cnt;
 374                 }
 375                 if ( apid_mpeg != -1 )
 376                 {
 377                         audioStream s;
 378                         s.type = audioStream::atMPEG;
 379                         s.pid = apid_mpeg;
 380                         program.audioStreams.push_back(s);
 381                         ++cnt;
 382                 }
 383                 if ( pcrpid != -1 )
 384                 {
 385                         ++cnt;
 386                         program.pcrPid = pcrpid;
 387                 }
 388                 if ( tpid != -1 )
 389                 {
 390                         ++cnt;
 391                         program.textPid = tpid;
 392                 }
 393                 if ( cnt )
 394                         return 0;
 395         }
 396         return -1;
 397 }
 398
 399 int eDVBServicePMTHandler::getChannel(eUsePtr<iDVBChannel> &channel)
 400 {
 401         channel = m_channel;
 402         if (channel)
 403                 return 0;
 404         else
 405                 return -1;
 406 }
 407
 408 int eDVBServicePMTHandler::getDataDemux(ePtr<iDVBDemux> &demux)
 409 {
 410         demux = m_demux;
 411         if (demux)
 412                 return 0;
 413         else
 414                 return -1;
 415 }
 416
 417 int eDVBServicePMTHandler::getDecodeDemux(ePtr<iDVBDemux> &demux)
 418 {
 419         int ret=0;
 420                 /* if we're using the decoding demux as data source
 421                    (for example in pvr playbacks), return that one. */
 422         if (m_use_decode_demux)
 423         {
 424                 demux = m_demux;
 425                 return ret;
 426         }
 427
 428         ret = m_channel->getDemux(demux, iDVBChannel::capDecode);
 429         if (!ret)
 430                 demux->getCADemuxID(m_decode_demux_num);
 431
 432         return ret;
 433 }
 434
 435 int eDVBServicePMTHandler::getPVRChannel(ePtr<iDVBPVRChannel> &pvr_channel)
 436 {
 437         pvr_channel = m_pvr_channel;
 438         if (pvr_channel)
 439                 return 0;
 440         else
 441                 return -1;
 442 }
 443
 444 int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref, int use_decode_demux, eCueSheet *cue)
 445 {
 446         RESULT res;
 447         m_reference = ref;
 448
 449         m_use_decode_demux = use_decode_demux;
 450
 451                 /* is this a normal (non PVR) channel? */
 452         if (ref.path.empty())
 453         {
 454                 eDVBChannelID chid;
 455                 ref.getChannelID(chid);
 456                 res = m_resourceManager->allocateChannel(chid, m_channel);
 457                 eDebug("allocate Channel: res %d", res);
 458         } else
 459         {
 460                 eDVBMetaParser parser;
 461
 462                 if (parser.parseFile(ref.path))
 463                         eWarning("no .meta file found, trying original service ref.");
 464                 else
 465                         m_reference = parser.m_ref;
 466
 467 //              eDebug("try %s", m_reference.toString().c_str());
 468
 469                 eDebug("alloc PVR");
 470                         /* allocate PVR */
 471                 res = m_resourceManager->allocatePVRChannel(m_pvr_channel);
 472                 if (res)
 473                         eDebug("allocatePVRChannel failed!\n");
 474                 m_channel = m_pvr_channel;
 475         }
 476
 477         if (m_channel)
 478         {
 479                 m_channel->connectStateChange(
 480                         slot(*this, &eDVBServicePMTHandler::channelStateChanged),
 481                         m_channelStateChanged_connection);
 482                 m_last_channel_state = -1;
 483                 channelStateChanged(m_channel);
 484
 485                 m_channel->connectEvent(
 486                         slot(*this, &eDVBServicePMTHandler::channelEvent),
 487                         m_channelEvent_connection);
 488         } else
 489         {
 490                 serviceEvent(eventTuneFailed);
 491                 return res;
 492         }
 493
 494         if (m_pvr_channel)
 495         {
 496                 m_pvr_channel->setCueSheet(cue);
 497                 m_pvr_channel->playFile(ref.path.c_str());
 498         }
 499
 500         ePtr<iDVBChannelList> db;
 501         if (!m_resourceManager->getChannelList(db))
 502                 db->getService((eServiceReferenceDVB&)m_reference, m_service);
 503
 504         return res;
 505 }
 506
 507 void eDVBServicePMTHandler::free()
 508 {
 509         if (m_ca_servicePtr)
 510         {
 511                 int demuxes[2] = {0,0};
 512                 uint8_t tmp;
 513                 m_demux->getCADemuxID(tmp);
 514                 demuxes[0]=tmp;
 515                 if (m_decode_demux_num != 0xFF)
 516                         demuxes[1]=m_decode_demux_num;
 517                 else
 518                         demuxes[1]=demuxes[0];
 519                 ePtr<eTable<ProgramMapSection> > ptr;
 520                 m_PMT.getCurrent(ptr);
 521                 eDVBCAService::unregister_service(m_reference, demuxes, ptr);
 522                 eDVBCIInterfaces::getInstance()->removePMTHandler(this);
 523                 m_ca_servicePtr = 0;
 524         }
 525
 526         if (m_pvr_channel)
 527         {
 528                 m_pvr_channel->stopFile();
 529                 m_pvr_channel->setCueSheet(0);
 530         }
 531         m_PMT.stop();
 532         m_PAT.stop();
 533         m_service = 0;
 534         m_channel = 0;
 535         m_pvr_channel = 0;
 536         m_demux = 0;
 537 }
 538
 539 std::map<eServiceReferenceDVB, eDVBCAService*> eDVBCAService::exist;
 540
 541 eDVBCAService::eDVBCAService()
 542         :m_prev_build_hash(0), m_sendstate(0), m_retryTimer(eApp)
 543 {
 544         memset(m_used_demux, 0xFF, sizeof(m_used_demux));
 545         CONNECT(m_retryTimer.timeout, eDVBCAService::sendCAPMT);
 546         Connect();
 547 }
 548
 549 eDVBCAService::~eDVBCAService()
 550 {
 551         eDebug("[eDVBCAService] free service %s", m_service.toString().c_str());
 552         ::close(m_sock);
 553 }
 554
 555 RESULT eDVBCAService::register_service( const eServiceReferenceDVB &ref, int demux_nums[2], eDVBCAService *&caservice )
 556 {
 557         CAServiceMap::iterator it = exist.find(ref);
 558         if ( it != exist.end() )
 559                 caservice = it->second;
 560         else
 561         {
 562                 caservice = (exist[ref]=new eDVBCAService());
 563                 caservice->m_service = ref;
 564                 eDebug("[eDVBCAService] new service %s", ref.toString().c_str() );
 565         }
 566
 567         int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 568         for (int i=0; i < loops; ++i)
 569         {
 570 // search free demux entry
 571                 int iter=0, max_demux_slots = sizeof(caservice->m_used_demux);
 572
 573                 while ( iter < max_demux_slots && caservice->m_used_demux[iter] != 0xFF )
 574                         ++iter;
 575
 576                 if ( iter < max_demux_slots )
 577                 {
 578                         caservice->m_used_demux[iter] = demux_nums[i] & 0xFF;
 579                         eDebug("[eDVBCAService] add demux %d to slot %d service %s", caservice->m_used_demux[iter], iter, ref.toString().c_str());
 580                 }
 581                 else
 582                 {
 583                         eDebug("[eDVBCAService] no more demux slots free for service %s!!", ref.toString().c_str());
 584                         return -1;
 585                 }
 586         }
 587         return 0;
 588 }
 589
 590 RESULT eDVBCAService::unregister_service( const eServiceReferenceDVB &ref, int demux_nums[2], eTable<ProgramMapSection> *ptr )
 591 {
 592         CAServiceMap::iterator it = exist.find(ref);
 593         if ( it == exist.end() )
 594         {
 595                 eDebug("[eDVBCAService] try to unregister non registered %s", ref.toString().c_str());
 596                 return -1;
 597         }
 598         else
 599         {
 600                 eDVBCAService *caservice = it->second;
 601                 int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 602                 for (int i=0; i < loops; ++i)
 603                 {
 604                         bool freed = false;
 605                         int iter = 0,
 606                                 used_demux_slots = 0,
 607                                 max_demux_slots = sizeof(caservice->m_used_demux)/sizeof(int);
 608                         while ( iter < max_demux_slots )
 609                         {
 610                                 if ( caservice->m_used_demux[iter] != 0xFF )
 611                                 {
 612                                         if ( !freed && caservice->m_used_demux[iter] == demux_nums[i] )
 613                                         {
 614                                                 eDebug("[eDVBCAService] free slot %d demux %d for service %s", iter, caservice->m_used_demux[iter], caservice->m_service.toString().c_str() );
 615                                                 caservice->m_used_demux[iter] = 0xFF;
 616                                                 freed=true;
 617                                         }
 618                                         else
 619                                                 ++used_demux_slots;
 620                                 }
 621                                 ++iter;
 622                         }
 623                         if (!freed)
 624                                 eDebug("[eDVBCAService] couldn't free demux slot for demux %d", demux_nums[i]);
 625                         if (i || loops == 1)
 626                         {
 627                                 if (!used_demux_slots)  // no more used.. so we remove it
 628                                 {
 629                                         delete it->second;
 630                                         exist.erase(it);
 631                                 }
 632                                 else
 633                                 {
 634                                         if (ptr)
 635                                                 it->second->buildCAPMT(ptr);
 636                                         else
 637                                                 eDebug("[eDVBCAService] can not send updated demux info");
 638                                 }
 639                         }
 640                 }
 641         }
 642         return 0;
 643 }
 644
 645 void eDVBCAService::Connect()
 646 {
 647         memset(&m_servaddr, 0, sizeof(struct sockaddr_un));
 648         m_servaddr.sun_family = AF_UNIX;
 649         strcpy(m_servaddr.sun_path, "/tmp/camd.socket");
 650         m_clilen = sizeof(m_servaddr.sun_family) + strlen(m_servaddr.sun_path);
 651         m_sock = socket(PF_UNIX, SOCK_STREAM, 0);
 652         connect(m_sock, (struct sockaddr *) &m_servaddr, m_clilen);
 653         fcntl(m_sock, F_SETFL, O_NONBLOCK);
 654         int val=1;
 655         setsockopt(m_sock, SOL_SOCKET, SO_REUSEADDR, &val, 4);
 656 }
 657
 658 void eDVBCAService::buildCAPMT(eTable<ProgramMapSection> *ptr)
 659 {
 660         if (!ptr)
 661                 return;
 662
 663         eDVBTableSpec table_spec;
 664         ptr->getSpec(table_spec);
 665
 666         int pmtpid = table_spec.pid,
 667                 pmt_version = table_spec.version;
 668
 669         uint8_t demux_mask = 0;
 670         int data_demux = -1;
 671
 672         int iter=0, max_demux_slots = sizeof(m_used_demux);
 673         while ( iter < max_demux_slots )
 674         {
 675                 if ( m_used_demux[iter] != 0xFF )
 676                 {
 677                         if ( m_used_demux[iter] > data_demux )
 678                                 data_demux = m_used_demux[iter];
 679                         demux_mask |= (1 << m_used_demux[iter]);
 680                 }
 681                 ++iter;
 682         }
 683
 684         if ( data_demux == -1 )
 685         {
 686                 eDebug("[eDVBCAService] no data demux found for service %s", m_service.toString().c_str() );
 687                 return;
 688         }
 689
 690         eDebug("demux %d mask %02x prevhash %08x", data_demux, demux_mask, m_prev_build_hash);
 691
 692         unsigned int build_hash = (pmtpid << 16);
 693         build_hash |= (demux_mask << 8);
 694         build_hash |= (pmt_version&0xFF);
 695
 696         if ( build_hash == m_prev_build_hash )
 697         {
 698                 eDebug("[eDVBCAService] don't build/send the same CA PMT twice");
 699                 return;
 700         }
 701
 702         std::vector<ProgramMapSection*>::const_iterator i=ptr->getSections().begin();
 703         if ( i != ptr->getSections().end() )
 704         {
 705                 CaProgramMapSection capmt(*i++, m_prev_build_hash ? 0x05 /*update*/ : 0x03 /*only*/, 0x01 );
 706
 707                 while( i != ptr->getSections().end() )
 708                 {
 709 //                      eDebug("append");
 710                         capmt.append(*i++);
 711                 }
 712
 713                 // add our private descriptors to capmt
 714                 uint8_t tmp[10];
 715
 716                 tmp[0]=0x84;  // pmt pid
 717                 tmp[1]=0x02;
 718                 tmp[2]=pmtpid>>8;
 719                 tmp[3]=pmtpid&0xFF;
 720                 capmt.injectDescriptor(tmp, false);
 721
 722                 tmp[0] = 0x82; // demux
 723                 tmp[1] = 0x02;
 724                 tmp[2] = demux_mask;    // descramble bitmask
 725                 tmp[3] = data_demux&0xFF; // read section data from demux number
 726                 capmt.injectDescriptor(tmp, false);
 727
 728                 tmp[0] = 0x81; // dvbnamespace
 729                 tmp[1] = 0x08;
 730                 tmp[2] = m_service.getDVBNamespace().get()>>24;
 731                 tmp[3]=(m_service.getDVBNamespace().get()>>16)&0xFF;
 732                 tmp[4]=(m_service.getDVBNamespace().get()>>8)&0xFF;
 733                 tmp[5]=m_service.getDVBNamespace().get()&0xFF;
 734                 tmp[6]=m_service.getTransportStreamID().get()>>8;
 735                 tmp[7]=m_service.getTransportStreamID().get()&0xFF;
 736                 tmp[8]=m_service.getOriginalNetworkID().get()>>8;
 737                 tmp[9]=m_service.getOriginalNetworkID().get()&0xFF;
 738                 capmt.injectDescriptor(tmp, false);
 739
 740                 capmt.writeToBuffer(m_capmt);
 741         }
 742
 743         m_prev_build_hash = build_hash;
 744
 745         if ( m_sendstate != 0xFFFFFFFF )
 746                 m_sendstate=0;
 747         sendCAPMT();
 748 }
 749
 750 void eDVBCAService::sendCAPMT()
 751 {
 752         if ( m_sendstate && m_sendstate != 0xFFFFFFFF ) // broken pipe retry
 753         {
 754                 ::close(m_sock);
 755                 Connect();
 756         }
 757
 758         int wp=0;
 759         if ( m_capmt[3] & 0x80 )
 760         {
 761                 int i=0;
 762                 int lenbytes = m_capmt[3] & ~0x80;
 763                 while(i < lenbytes)
 764                         wp = (wp << 8) | m_capmt[4 + i++];
 765                 wp+=4;
 766                 wp+=lenbytes;
 767         }
 768         else
 769         {
 770                 wp = m_capmt[3];
 771                 wp+=4;
 772         }
 773
 774         if ( write(m_sock, m_capmt, wp) == wp )
 775         {
 776                 m_sendstate=0xFFFFFFFF;
 777                 eDebug("[eDVBCAService] send %d bytes",wp);
 778 #if 1
 779                 for(int i=0;i<wp;i++)
 780                         eDebugNoNewLine("%02x ", m_capmt[i]);
 781                 eDebug("");
 782 #endif
 783         }
 784         else
 785         {
 786                 switch(m_sendstate)
 787                 {
 788                         case 0xFFFFFFFF:
 789                                 ++m_sendstate;
 790                                 m_retryTimer.start(0,true);
 791 //                              eDebug("[eDVBCAService] send failed .. immediate retry");
 792                                 break;
 793                         default:
 794                                 m_retryTimer.start(5000,true);
 795 //                              eDebug("[eDVBCAService] send failed .. retry in 5 sec");
 796                                 break;
 797                 }
 798                 ++m_sendstate;
 799         }
 800 }