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 #include <dvbsi++/subtitling_descriptor.h>
  16 #include <dvbsi++/teletext_descriptor.h>
  17
  18 eDVBServicePMTHandler::eDVBServicePMTHandler()
  19         :m_ca_servicePtr(0), m_dvb_scan(0), m_decode_demux_num(0xFF)
  20 {
  21         m_use_decode_demux = 0;
  22         m_pmt_pid = -1;
  23         eDVBResourceManager::getInstance(m_resourceManager);
  24         CONNECT(m_PMT.tableReady, eDVBServicePMTHandler::PMTready);
  25         CONNECT(m_PAT.tableReady, eDVBServicePMTHandler::PATready);
  26 }
  27
  28 eDVBServicePMTHandler::~eDVBServicePMTHandler()
  29 {
  30         free();
  31 }
  32
  33 void eDVBServicePMTHandler::channelStateChanged(iDVBChannel *channel)
  34 {
  35         int state;
  36         channel->getState(state);
  37
  38         if ((m_last_channel_state != iDVBChannel::state_ok)
  39                 && (state == iDVBChannel::state_ok) && (!m_demux))
  40         {
  41                 if (m_channel)
  42                         if (m_channel->getDemux(m_demux, (!m_use_decode_demux) ? 0 : iDVBChannel::capDecode))
  43                                 eDebug("Allocating %s-decoding a demux for now tuned-in channel failed.", m_use_decode_demux ? "" : "non-");
  44
  45                 serviceEvent(eventTuned);
  46
  47                 if (m_demux)
  48                 {
  49                         eDebug("ok ... now we start!!");
  50
  51                         if (m_pmt_pid == -1)
  52                                 m_PAT.begin(eApp, eDVBPATSpec(), m_demux);
  53                         else
  54                                 m_PMT.begin(eApp, eDVBPMTSpec(m_pmt_pid, m_reference.getServiceID().get()), m_demux);
  55
  56                         if ( m_service && !m_service->cacheEmpty() )
  57                                 serviceEvent(eventNewProgramInfo);
  58                 }
  59         } else if ((m_last_channel_state != iDVBChannel::state_failed) &&
  60                         (state == iDVBChannel::state_failed))
  61         {
  62                 eDebug("tune failed.");
  63                 serviceEvent(eventTuneFailed);
  64         }
  65 }
  66
  67 void eDVBServicePMTHandler::channelEvent(iDVBChannel *channel, int event)
  68 {
  69         switch (event)
  70         {
  71         case iDVBChannel::evtEOF:
  72                 serviceEvent(eventEOF);
  73                 break;
  74         case iDVBChannel::evtSOF:
  75                 serviceEvent(eventSOF);
  76                 break;
  77         default:
  78                 break;
  79         }
  80 }
  81
  82 void eDVBServicePMTHandler::PMTready(int error)
  83 {
  84         if (error)
  85                 serviceEvent(eventNoPMT);
  86         else
  87         {
  88                 m_have_cached_program = false;
  89                 serviceEvent(eventNewProgramInfo);
  90                 if (!m_pvr_channel) // don't send campmt to camd.socket for playbacked services
  91                 {
  92                         eEPGCache::getInstance()->PMTready(this);
  93                         if(!m_ca_servicePtr)
  94                         {
  95                                 int demuxes[2] = {0,0};
  96                                 uint8_t tmp;
  97                                 m_demux->getCADemuxID(tmp);
  98                                 demuxes[0]=tmp;
  99                                 if (m_decode_demux_num != 0xFF)
 100                                         demuxes[1]=m_decode_demux_num;
 101                                 else
 102                                         demuxes[1]=demuxes[0];
 103                                 eDVBCAService::register_service(m_reference, demuxes, m_ca_servicePtr);
 104                                 eDVBCIInterfaces::getInstance()->recheckPMTHandlers();
 105                         }
 106                         eDVBCIInterfaces::getInstance()->gotPMT(this);
 107                 }
 108                 if (m_ca_servicePtr)
 109                 {
 110                         ePtr<eTable<ProgramMapSection> > ptr;
 111                         if (!m_PMT.getCurrent(ptr))
 112                                 m_ca_servicePtr->buildCAPMT(ptr);
 113                         else
 114                                 eDebug("eDVBServicePMTHandler cannot call buildCAPMT");
 115                 }
 116         }
 117 }
 118
 119 void eDVBServicePMTHandler::PATready(int)
 120 {
 121         ePtr<eTable<ProgramAssociationSection> > ptr;
 122         if (!m_PAT.getCurrent(ptr))
 123         {
 124                 int pmtpid = -1;
 125                 std::vector<ProgramAssociationSection*>::const_iterator i;
 126                 for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 127                 {
 128                         const ProgramAssociationSection &pat = **i;
 129                         ProgramAssociationConstIterator program;
 130                         for (program = pat.getPrograms()->begin(); program != pat.getPrograms()->end(); ++program)
 131                                 if (eServiceID((*program)->getProgramNumber()) == m_reference.getServiceID())
 132                                         pmtpid = (*program)->getProgramMapPid();
 133                 }
 134                 if (pmtpid == -1)
 135                         serviceEvent(eventNoPATEntry);
 136                 else
 137                         m_PMT.begin(eApp, eDVBPMTSpec(pmtpid, m_reference.getServiceID().get()), m_demux);
 138         } else
 139                 serviceEvent(eventNoPAT);
 140 }
 141
 142 PyObject *eDVBServicePMTHandler::getCaIds()
 143 {
 144         ePyObject ret;
 145
 146         program prog;
 147
 148         if ( !getProgramInfo(prog) )
 149         {
 150                 int cnt=prog.caids.size();
 151                 if (cnt)
 152                 {
 153                         ret=PyList_New(cnt);
 154                         std::set<uint16_t>::iterator it(prog.caids.begin());
 155                         while(cnt--)
 156                                 PyList_SET_ITEM(ret, cnt, PyInt_FromLong(*it++));
 157                 }
 158         }
 159
 160         return ret ? (PyObject*)ret : (PyObject*)PyList_New(0);
 161 }
 162
 163 int eDVBServicePMTHandler::getProgramInfo(struct program &program)
 164 {
 165         ePtr<eTable<ProgramMapSection> > ptr;
 166         int cached_apid_ac3 = -1;
 167         int cached_apid_mpeg = -1;
 168         int cached_vpid = -1;
 169         int cached_tpid = -1;
 170         int ret = -1;
 171
 172         program.videoStreams.clear();
 173         program.audioStreams.clear();
 174         program.pcrPid = -1;
 175         program.pmtPid = -1;
 176         program.textPid = -1;
 177
 178         if ( m_service && !m_service->cacheEmpty() )
 179         {
 180                 cached_vpid = m_service->getCacheEntry(eDVBService::cVPID);
 181                 cached_apid_mpeg = m_service->getCacheEntry(eDVBService::cAC3PID);
 182                 cached_apid_ac3 = m_service->getCacheEntry(eDVBService::cAPID);
 183                 cached_tpid = m_service->getCacheEntry(eDVBService::cTPID);
 184         }
 185
 186         if ( ((m_service && m_service->usePMT()) || !m_service) && !m_PMT.getCurrent(ptr))
 187         {
 188                 if (m_have_cached_program)
 189                 {
 190                         program = m_cached_program;
 191                         ret = 0;
 192                 }
 193                 else
 194                 {
 195                         eDVBTableSpec table_spec;
 196                         ptr->getSpec(table_spec);
 197                         program.pmtPid = table_spec.pid < 0x1fff ? table_spec.pid : -1;
 198                         std::vector<ProgramMapSection*>::const_iterator i;
 199                         for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 200                         {
 201                                 const ProgramMapSection &pmt = **i;
 202                                 program.pcrPid = pmt.getPcrPid();
 203
 204                                 ElementaryStreamInfoConstIterator es;
 205                                 for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
 206                                 {
 207                                         int isaudio = 0, isvideo = 0;
 208                                         videoStream video;
 209                                         audioStream audio;
 210                                         audio.component_tag=video.component_tag=-1;
 211                                         video.type = videoStream::vtMPEG2;
 212
 213                                         switch ((*es)->getType())
 214                                         {
 215                                         case 0x1b: // AVC Video Stream (MPEG4 H264)
 216                                                 video.type = videoStream::vtMPEG4_H264;
 217                                         case 0x01: // MPEG 1 video
 218                                         case 0x02: // MPEG 2 video
 219                                                 isvideo = 1;
 220                                                 //break; fall through !!!
 221                                         case 0x03: // MPEG 1 audio
 222                                         case 0x04: // MPEG 2 audio:
 223                                                 if (!isvideo)
 224                                                 {
 225                                                         isaudio = 1;
 226                                                         audio.type = audioStream::atMPEG;
 227                                                 }
 228                                                 //break; fall through !!!
 229                                         case 0x06: // PES Private
 230                                                         /* PES private can contain AC-3, DTS or lots of other stuff.
 231                                                            check descriptors to get the exact type. */
 232                                                 for (DescriptorConstIterator desc = (*es)->getDescriptors()->begin();
 233                                                                 desc != (*es)->getDescriptors()->end(); ++desc)
 234                                                 {
 235                                                         switch ((*desc)->getTag())
 236                                                         {
 237                                                         case SUBTITLING_DESCRIPTOR:
 238                                                         {
 239                                                                 SubtitlingDescriptor *d = (SubtitlingDescriptor*)(*desc);
 240                                                                 const SubtitlingList *list = d->getSubtitlings();
 241                                                                 subtitleStream s;
 242                                                                 s.pid = (*es)->getPid();
 243                                                                 for (SubtitlingConstIterator it(list->begin()); it != list->end(); ++it)
 244                                                                 {
 245                                                                         s.subtitling_type = (*it)->getSubtitlingType();
 246                                                                         s.composition_page_id = (*it)->getCompositionPageId();
 247                                                                         s.ancillary_page_id = (*it)->getAncillaryPageId();
 248                                                                         s.language_code = (*it)->getIso639LanguageCode();
 249 //                                                                      eDebug("add dvb subtitle %s PID %04x, type %d, composition page %d, ancillary_page %d",
 250 //                                                                              s.language_code.c_str(), s.pid, s.subtitling_type, s.composition_page_id, s.ancillary_page_id);
 251                                                                         program.subtitleStreams.push_back(s);
 252                                                                 }
 253                                                                 break;
 254                                                         }
 255                                                         case TELETEXT_DESCRIPTOR:
 256                                                                 if ( program.textPid == -1 || (*es)->getPid() == cached_tpid )
 257                                                                 {
 258                                                                         subtitleStream s;
 259                                                                         s.subtitling_type = 0x01; // EBU TELETEXT SUBTITLES
 260                                                                         s.pid = program.textPid = (*es)->getPid();
 261                                                                         TeletextDescriptor *d = (TeletextDescriptor*)(*desc);
 262                                                                         const VbiTeletextList *list = d->getVbiTeletexts();
 263                                                                         for (VbiTeletextConstIterator it(list->begin()); it != list->end(); ++it)
 264                                                                         {
 265                                                                                 switch((*it)->getTeletextType())
 266                                                                                 {
 267                                                                                         case 0x02: // Teletext subtitle page
 268                                                                                         case 0x05: // Teletext subtitle page for hearing impaired pepople
 269                                                                                                 s.language_code = (*it)->getIso639LanguageCode();
 270                                                                                                 s.teletext_page_number = (*it)->getTeletextPageNumber();
 271                                                                                                 s.teletext_magazine_number = (*it)->getTeletextMagazineNumber();
 272 //                                                                                              eDebug("add teletext subtitle %s PID %04x, page number %d, magazine number %d",
 273 //                                                                                                      s.language_code.c_str(), s.pid, s.teletext_page_number, s.teletext_magazine_number);
 274                                                                                                 program.subtitleStreams.push_back(s);
 275                                                                                                 break;
 276                                                                                 }
 277                                                                         }
 278                                                                 }
 279                                                                 break;
 280                                                         case DTS_DESCRIPTOR:
 281                                                                 isaudio = 1;
 282                                                                 audio.type = audioStream::atDTS;
 283                                                                 break;
 284                                                         case AAC_DESCRIPTOR:
 285                                                                 isaudio = 1;
 286                                                                 audio.type = audioStream::atAAC;
 287                                                                 break;
 288                                                         case AC3_DESCRIPTOR:
 289                                                                 isaudio = 1;
 290                                                                 audio.type = audioStream::atAC3;
 291                                                                 break;
 292                                                         case ISO_639_LANGUAGE_DESCRIPTOR:
 293                                                                 if (!isvideo)
 294                                                                 {
 295                                                                         const Iso639LanguageList *languages = ((Iso639LanguageDescriptor*)*desc)->getIso639Languages();
 296                                                                                 /* use last language code */
 297                                                                         for (Iso639LanguageConstIterator i(languages->begin()); i != languages->end(); ++i)
 298                                                                                 audio.language_code = (*i)->getIso639LanguageCode();
 299                                                                 }
 300                                                                 break;
 301                                                         case STREAM_IDENTIFIER_DESCRIPTOR:
 302                                                                 audio.component_tag =
 303                                                                         video.component_tag =
 304                                                                                 ((StreamIdentifierDescriptor*)*desc)->getComponentTag();
 305                                                                 break;
 306                                                         case CA_DESCRIPTOR:
 307                                                         {
 308                                                                 CaDescriptor *descr = (CaDescriptor*)(*desc);
 309                                                                 program.caids.insert(descr->getCaSystemId());
 310                                                                 break;
 311                                                         }
 312                                                         }
 313                                                 }
 314                                                 break;
 315                                         }
 316                                         if (isaudio)
 317                                         {
 318                                                 audio.pid = (*es)->getPid();
 319                                                 if ( !program.audioStreams.empty() &&
 320                                                         ( audio.pid == cached_apid_ac3 || audio.pid == cached_apid_mpeg) )
 321                                                 {
 322                                                         program.audioStreams.push_back(program.audioStreams[0]);
 323                                                         program.audioStreams[0] = audio;
 324                                                 }
 325                                                 else
 326                                                         program.audioStreams.push_back(audio);
 327                                         }
 328                                         else if (isvideo)
 329                                         {
 330                                                 video.pid = (*es)->getPid();
 331                                                 if ( !program.videoStreams.empty() && video.pid == cached_vpid )
 332                                                 {
 333                                                         program.videoStreams.push_back(program.videoStreams[0]);
 334                                                         program.videoStreams[0] = video;
 335                                                 }
 336                                                 else
 337                                                         program.videoStreams.push_back(video);
 338                                         }
 339                                         else
 340                                                 continue;
 341                                 }
 342                                 for (DescriptorConstIterator desc = pmt.getDescriptors()->begin();
 343                                         desc != pmt.getDescriptors()->end(); ++desc)
 344                                 {
 345                                         if ((*desc)->getTag() == CA_DESCRIPTOR)
 346                                         {
 347                                                 CaDescriptor *descr = (CaDescriptor*)(*desc);
 348                                                 program.caids.insert(descr->getCaSystemId());
 349                                         }
 350                                 }
 351                         }
 352                         ret = 0;
 353                         m_cached_program = program;
 354                         m_have_cached_program = true;
 355                 }
 356         } else if ( m_service && !m_service->cacheEmpty() )
 357         {
 358                 int cached_pcrpid = m_service->getCacheEntry(eDVBService::cPCRPID),
 359                         vpidtype = m_service->getCacheEntry(eDVBService::cVTYPE),
 360                         cnt=0;
 361                 if ( vpidtype == -1 )
 362                         vpidtype = videoStream::vtMPEG2;
 363                 if ( cached_vpid != -1 )
 364                 {
 365                         videoStream s;
 366                         s.pid = cached_vpid;
 367                         s.type = vpidtype;
 368                         program.videoStreams.push_back(s);
 369                         ++cnt;
 370                 }
 371                 if ( cached_apid_ac3 != -1 )
 372                 {
 373                         audioStream s;
 374                         s.type = audioStream::atAC3;
 375                         s.pid = cached_apid_ac3;
 376                         program.audioStreams.push_back(s);
 377                         ++cnt;
 378                 }
 379                 if ( cached_apid_mpeg != -1 )
 380                 {
 381                         audioStream s;
 382                         s.type = audioStream::atMPEG;
 383                         s.pid = cached_apid_mpeg;
 384                         program.audioStreams.push_back(s);
 385                         ++cnt;
 386                 }
 387                 if ( cached_pcrpid != -1 )
 388                 {
 389                         ++cnt;
 390                         program.pcrPid = cached_pcrpid;
 391                 }
 392                 if ( cached_tpid != -1 )
 393                 {
 394                         ++cnt;
 395                         program.textPid = cached_tpid;
 396                 }
 397                 CAID_LIST &caids = m_service->m_ca;
 398                 for (CAID_LIST::iterator it(caids.begin()); it != caids.end(); ++it)
 399                         program.caids.insert(*it);
 400                 if ( cnt )
 401                         ret = 0;
 402         }
 403         return ret;
 404 }
 405
 406 int eDVBServicePMTHandler::getChannel(eUsePtr<iDVBChannel> &channel)
 407 {
 408         channel = m_channel;
 409         if (channel)
 410                 return 0;
 411         else
 412                 return -1;
 413 }
 414
 415 int eDVBServicePMTHandler::getDataDemux(ePtr<iDVBDemux> &demux)
 416 {
 417         demux = m_demux;
 418         if (demux)
 419                 return 0;
 420         else
 421                 return -1;
 422 }
 423
 424 int eDVBServicePMTHandler::getDecodeDemux(ePtr<iDVBDemux> &demux)
 425 {
 426         int ret=0;
 427                 /* if we're using the decoding demux as data source
 428                    (for example in pvr playbacks), return that one. */
 429         if (m_use_decode_demux)
 430         {
 431                 demux = m_demux;
 432                 return ret;
 433         }
 434
 435         ASSERT(m_channel); /* calling without a previous ::tune is certainly bad. */
 436
 437         ret = m_channel->getDemux(demux, iDVBChannel::capDecode);
 438         if (!ret)
 439                 demux->getCADemuxID(m_decode_demux_num);
 440
 441         return ret;
 442 }
 443
 444 int eDVBServicePMTHandler::getPVRChannel(ePtr<iDVBPVRChannel> &pvr_channel)
 445 {
 446         pvr_channel = m_pvr_channel;
 447         if (pvr_channel)
 448                 return 0;
 449         else
 450                 return -1;
 451 }
 452
 453 void eDVBServicePMTHandler::SDTScanEvent(int event)
 454 {
 455         switch (event)
 456         {
 457                 case eDVBScan::evtFinish:
 458                 {
 459                         ePtr<iDVBChannelList> db;
 460                         if (m_resourceManager->getChannelList(db) != 0)
 461                                 eDebug("no channel list");
 462                         else
 463                         {
 464                                 m_dvb_scan->insertInto(db, true);
 465                                 eDebug("sdt update done!");
 466                         }
 467                         break;
 468                 }
 469
 470                 default:
 471                         break;
 472         }
 473 }
 474
 475 int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref, int use_decode_demux, eCueSheet *cue)
 476 {
 477         RESULT res;
 478         m_reference = ref;
 479
 480         m_use_decode_demux = use_decode_demux;
 481
 482                 /* is this a normal (non PVR) channel? */
 483         if (ref.path.empty())
 484         {
 485                 eDVBChannelID chid;
 486                 ref.getChannelID(chid);
 487                 res = m_resourceManager->allocateChannel(chid, m_channel);
 488                 eDebug("allocate Channel: res %d", res);
 489
 490                 ePtr<iDVBChannelList> db;
 491                 if (!m_resourceManager->getChannelList(db))
 492                                 db->getService((eServiceReferenceDVB&)m_reference, m_service);
 493
 494                 if (!res)
 495                         eDVBCIInterfaces::getInstance()->addPMTHandler(this);
 496         } else
 497         {
 498                 eDVBMetaParser parser;
 499
 500                 int ret=parser.parseFile(ref.path);
 501                 if (ret || !parser.m_ref.getServiceID().get() /* incorrect sid in meta file or recordings.epl*/ )
 502                 {
 503                         eWarning("no .meta file found, trying to find PMT pid");
 504                         eDVBTSTools tstools;
 505                         if (tstools.openFile(ref.path.c_str()))
 506                                 eWarning("failed to open file");
 507                         else
 508                         {
 509                                 int service_id, pmt_pid;
 510                                 if (!tstools.findPMT(pmt_pid, service_id))
 511                                 {
 512                                         eDebug("PMT pid found on pid %04x, service id %d", pmt_pid, service_id);
 513                                         m_reference.setServiceID(service_id);
 514                                         m_pmt_pid = pmt_pid;
 515                                 }
 516                         }
 517                 } else
 518                         m_reference = parser.m_ref;
 519
 520                 eDebug("alloc PVR");
 521                         /* allocate PVR */
 522                 res = m_resourceManager->allocatePVRChannel(m_pvr_channel);
 523                 if (res)
 524                         eDebug("allocatePVRChannel failed!\n");
 525                 m_channel = m_pvr_channel;
 526         }
 527
 528         if (m_channel)
 529         {
 530                 m_channel->connectStateChange(
 531                         slot(*this, &eDVBServicePMTHandler::channelStateChanged),
 532                         m_channelStateChanged_connection);
 533                 m_last_channel_state = -1;
 534                 channelStateChanged(m_channel);
 535
 536                 m_channel->connectEvent(
 537                         slot(*this, &eDVBServicePMTHandler::channelEvent),
 538                         m_channelEvent_connection);
 539
 540                 if (ref.path.empty())
 541                 {
 542                         delete m_dvb_scan;
 543                         m_dvb_scan = new eDVBScan(m_channel, false, false);
 544                         m_dvb_scan->connectEvent(slot(*this, &eDVBServicePMTHandler::SDTScanEvent), m_scan_event_connection);
 545                 }
 546         } else
 547         {
 548                 serviceEvent(eventNoResources);
 549                 return res;
 550         }
 551
 552         if (m_pvr_channel)
 553         {
 554                 m_pvr_channel->setCueSheet(cue);
 555                 m_pvr_channel->playFile(ref.path.c_str());
 556         }
 557
 558         return res;
 559 }
 560
 561 void eDVBServicePMTHandler::free()
 562 {
 563         m_dvb_scan = 0;
 564         delete m_dvb_scan;
 565
 566         if (m_ca_servicePtr)
 567         {
 568                 int demuxes[2] = {0,0};
 569                 uint8_t tmp;
 570                 m_demux->getCADemuxID(tmp);
 571                 demuxes[0]=tmp;
 572                 if (m_decode_demux_num != 0xFF)
 573                         demuxes[1]=m_decode_demux_num;
 574                 else
 575                         demuxes[1]=demuxes[0];
 576                 ePtr<eTable<ProgramMapSection> > ptr;
 577                 m_PMT.getCurrent(ptr);
 578                 eDVBCAService::unregister_service(m_reference, demuxes, ptr);
 579                 m_ca_servicePtr = 0;
 580         }
 581
 582         if (m_channel)
 583                 eDVBCIInterfaces::getInstance()->removePMTHandler(this);
 584
 585         if (m_pvr_channel)
 586         {
 587                 m_pvr_channel->stopFile();
 588                 m_pvr_channel->setCueSheet(0);
 589         }
 590         m_PMT.stop();
 591         m_PAT.stop();
 592         m_service = 0;
 593         m_channel = 0;
 594         m_pvr_channel = 0;
 595         m_demux = 0;
 596 }
 597
 598 std::map<eServiceReferenceDVB, eDVBCAService*> eDVBCAService::exist;
 599
 600 eDVBCAService::eDVBCAService()
 601         :m_prev_build_hash(0), m_sendstate(0), m_retryTimer(eApp)
 602 {
 603         memset(m_used_demux, 0xFF, sizeof(m_used_demux));
 604         CONNECT(m_retryTimer.timeout, eDVBCAService::sendCAPMT);
 605         Connect();
 606 }
 607
 608 eDVBCAService::~eDVBCAService()
 609 {
 610         eDebug("[eDVBCAService] free service %s", m_service.toString().c_str());
 611         ::close(m_sock);
 612 }
 613
 614 RESULT eDVBCAService::register_service( const eServiceReferenceDVB &ref, int demux_nums[2], eDVBCAService *&caservice )
 615 {
 616         CAServiceMap::iterator it = exist.find(ref);
 617         if ( it != exist.end() )
 618                 caservice = it->second;
 619         else
 620         {
 621                 caservice = (exist[ref]=new eDVBCAService());
 622                 caservice->m_service = ref;
 623                 eDebug("[eDVBCAService] new service %s", ref.toString().c_str() );
 624         }
 625
 626         int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 627         for (int i=0; i < loops; ++i)
 628         {
 629 // search free demux entry
 630                 int iter=0, max_demux_slots = sizeof(caservice->m_used_demux);
 631
 632                 while ( iter < max_demux_slots && caservice->m_used_demux[iter] != 0xFF )
 633                         ++iter;
 634
 635                 if ( iter < max_demux_slots )
 636                 {
 637                         caservice->m_used_demux[iter] = demux_nums[i] & 0xFF;
 638                         eDebug("[eDVBCAService] add demux %d to slot %d service %s", caservice->m_used_demux[iter], iter, ref.toString().c_str());
 639                 }
 640                 else
 641                 {
 642                         eDebug("[eDVBCAService] no more demux slots free for service %s!!", ref.toString().c_str());
 643                         return -1;
 644                 }
 645         }
 646         return 0;
 647 }
 648
 649 RESULT eDVBCAService::unregister_service( const eServiceReferenceDVB &ref, int demux_nums[2], eTable<ProgramMapSection> *ptr )
 650 {
 651         CAServiceMap::iterator it = exist.find(ref);
 652         if ( it == exist.end() )
 653         {
 654                 eDebug("[eDVBCAService] try to unregister non registered %s", ref.toString().c_str());
 655                 return -1;
 656         }
 657         else
 658         {
 659                 eDVBCAService *caservice = it->second;
 660                 int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 661                 for (int i=0; i < loops; ++i)
 662                 {
 663                         bool freed = false;
 664                         int iter = 0,
 665                                 used_demux_slots = 0,
 666                                 max_demux_slots = sizeof(caservice->m_used_demux)/sizeof(int);
 667                         while ( iter < max_demux_slots )
 668                         {
 669                                 if ( caservice->m_used_demux[iter] != 0xFF )
 670                                 {
 671                                         if ( !freed && caservice->m_used_demux[iter] == demux_nums[i] )
 672                                         {
 673                                                 eDebug("[eDVBCAService] free slot %d demux %d for service %s", iter, caservice->m_used_demux[iter], caservice->m_service.toString().c_str() );
 674                                                 caservice->m_used_demux[iter] = 0xFF;
 675                                                 freed=true;
 676                                         }
 677                                         else
 678                                                 ++used_demux_slots;
 679                                 }
 680                                 ++iter;
 681                         }
 682                         if (!freed)
 683                                 eDebug("[eDVBCAService] couldn't free demux slot for demux %d", demux_nums[i]);
 684                         if (i || loops == 1)
 685                         {
 686                                 if (!used_demux_slots)  // no more used.. so we remove it
 687                                 {
 688                                         delete it->second;
 689                                         exist.erase(it);
 690                                 }
 691                                 else
 692                                 {
 693                                         if (ptr)
 694                                                 it->second->buildCAPMT(ptr);
 695                                         else
 696                                                 eDebug("[eDVBCAService] can not send updated demux info");
 697                                 }
 698                         }
 699                 }
 700         }
 701         return 0;
 702 }
 703
 704 void eDVBCAService::Connect()
 705 {
 706         memset(&m_servaddr, 0, sizeof(struct sockaddr_un));
 707         m_servaddr.sun_family = AF_UNIX;
 708         strcpy(m_servaddr.sun_path, "/tmp/camd.socket");
 709         m_clilen = sizeof(m_servaddr.sun_family) + strlen(m_servaddr.sun_path);
 710         m_sock = socket(PF_UNIX, SOCK_STREAM, 0);
 711         connect(m_sock, (struct sockaddr *) &m_servaddr, m_clilen);
 712         fcntl(m_sock, F_SETFL, O_NONBLOCK);
 713         int val=1;
 714         setsockopt(m_sock, SOL_SOCKET, SO_REUSEADDR, &val, 4);
 715 }
 716
 717 void eDVBCAService::buildCAPMT(eTable<ProgramMapSection> *ptr)
 718 {
 719         if (!ptr)
 720                 return;
 721
 722         eDVBTableSpec table_spec;
 723         ptr->getSpec(table_spec);
 724
 725         int pmtpid = table_spec.pid,
 726                 pmt_version = table_spec.version;
 727
 728         uint8_t demux_mask = 0;
 729         int data_demux = -1;
 730
 731         int iter=0, max_demux_slots = sizeof(m_used_demux);
 732         while ( iter < max_demux_slots )
 733         {
 734                 if ( m_used_demux[iter] != 0xFF )
 735                 {
 736                         if ( m_used_demux[iter] > data_demux )
 737                                 data_demux = m_used_demux[iter];
 738                         demux_mask |= (1 << m_used_demux[iter]);
 739                 }
 740                 ++iter;
 741         }
 742
 743         if ( data_demux == -1 )
 744         {
 745                 eDebug("[eDVBCAService] no data demux found for service %s", m_service.toString().c_str() );
 746                 return;
 747         }
 748
 749         eDebug("demux %d mask %02x prevhash %08x", data_demux, demux_mask, m_prev_build_hash);
 750
 751         unsigned int build_hash = (pmtpid << 16);
 752         build_hash |= (demux_mask << 8);
 753         build_hash |= (pmt_version&0xFF);
 754
 755         if ( build_hash == m_prev_build_hash )
 756         {
 757                 eDebug("[eDVBCAService] don't build/send the same CA PMT twice");
 758                 return;
 759         }
 760
 761         std::vector<ProgramMapSection*>::const_iterator i=ptr->getSections().begin();
 762         if ( i != ptr->getSections().end() )
 763         {
 764                 CaProgramMapSection capmt(*i++, m_prev_build_hash ? 0x05 /*update*/ : 0x03 /*only*/, 0x01 );
 765
 766                 while( i != ptr->getSections().end() )
 767                 {
 768 //                      eDebug("append");
 769                         capmt.append(*i++);
 770                 }
 771
 772                 // add our private descriptors to capmt
 773                 uint8_t tmp[10];
 774
 775                 tmp[0]=0x84;  // pmt pid
 776                 tmp[1]=0x02;
 777                 tmp[2]=pmtpid>>8;
 778                 tmp[3]=pmtpid&0xFF;
 779                 capmt.injectDescriptor(tmp, false);
 780
 781                 tmp[0] = 0x82; // demux
 782                 tmp[1] = 0x02;
 783                 tmp[2] = demux_mask;    // descramble bitmask
 784                 tmp[3] = data_demux&0xFF; // read section data from demux number
 785                 capmt.injectDescriptor(tmp, false);
 786
 787                 tmp[0] = 0x81; // dvbnamespace
 788                 tmp[1] = 0x08;
 789                 tmp[2] = m_service.getDVBNamespace().get()>>24;
 790                 tmp[3]=(m_service.getDVBNamespace().get()>>16)&0xFF;
 791                 tmp[4]=(m_service.getDVBNamespace().get()>>8)&0xFF;
 792                 tmp[5]=m_service.getDVBNamespace().get()&0xFF;
 793                 tmp[6]=m_service.getTransportStreamID().get()>>8;
 794                 tmp[7]=m_service.getTransportStreamID().get()&0xFF;
 795                 tmp[8]=m_service.getOriginalNetworkID().get()>>8;
 796                 tmp[9]=m_service.getOriginalNetworkID().get()&0xFF;
 797                 capmt.injectDescriptor(tmp, false);
 798
 799                 capmt.writeToBuffer(m_capmt);
 800         }
 801
 802         m_prev_build_hash = build_hash;
 803
 804         if ( m_sendstate != 0xFFFFFFFF )
 805                 m_sendstate=0;
 806         sendCAPMT();
 807 }
 808
 809 void eDVBCAService::sendCAPMT()
 810 {
 811         if ( m_sendstate && m_sendstate != 0xFFFFFFFF ) // broken pipe retry
 812         {
 813                 ::close(m_sock);
 814                 Connect();
 815         }
 816
 817         int wp=0;
 818         if ( m_capmt[3] & 0x80 )
 819         {
 820                 int i=0;
 821                 int lenbytes = m_capmt[3] & ~0x80;
 822                 while(i < lenbytes)
 823                         wp = (wp << 8) | m_capmt[4 + i++];
 824                 wp+=4;
 825                 wp+=lenbytes;
 826         }
 827         else
 828         {
 829                 wp = m_capmt[3];
 830                 wp+=4;
 831         }
 832
 833         if ( write(m_sock, m_capmt, wp) == wp )
 834         {
 835                 m_sendstate=0xFFFFFFFF;
 836                 eDebug("[eDVBCAService] send %d bytes",wp);
 837 #if 1
 838                 for(int i=0;i<wp;i++)
 839                         eDebugNoNewLine("%02x ", m_capmt[i]);
 840                 eDebug("");
 841 #endif
 842         }
 843         else
 844         {
 845                 switch(m_sendstate)
 846                 {
 847                         case 0xFFFFFFFF:
 848                                 ++m_sendstate;
 849                                 m_retryTimer.start(0,true);
 850 //                              eDebug("[eDVBCAService] send failed .. immediate retry");
 851                                 break;
 852                         default:
 853                                 m_retryTimer.start(5000,true);
 854 //                              eDebug("[eDVBCAService] send failed .. retry in 5 sec");
 855                                 break;
 856                 }
 857                 ++m_sendstate;
 858         }
 859 }
 860
 861 static PyObject *createTuple(int pid, const char *type)
 862 {
 863         PyObject *r = PyTuple_New(2);
 864         PyTuple_SetItem(r, 0, PyInt_FromLong(pid));
 865         PyTuple_SetItem(r, 1, PyString_FromString(type));
 866         return r;
 867 }
 868
 869 static inline void PyList_AppendSteal(PyObject *list, PyObject *item)
 870 {
 871         PyList_Append(list, item);
 872         Py_DECREF(item);
 873 }
 874
 875 PyObject *eDVBServicePMTHandler::program::createPythonObject()
 876 {
 877         PyObject *r = PyDict_New();
 878
 879         PyObject *l = PyList_New(0);
 880
 881         PyList_AppendSteal(l, createTuple(0, "pat"));
 882
 883         if (pmtPid != -1)
 884                 PyList_AppendSteal(l, createTuple(pmtPid, "pmt"));
 885
 886         for (std::vector<eDVBServicePMTHandler::videoStream>::const_iterator
 887                         i(videoStreams.begin());
 888                         i != videoStreams.end(); ++i)
 889                 PyList_AppendSteal(l, createTuple(i->pid, "video"));
 890
 891         for (std::vector<eDVBServicePMTHandler::audioStream>::const_iterator
 892                         i(audioStreams.begin());
 893                         i != audioStreams.end(); ++i)
 894                 PyList_AppendSteal(l, createTuple(i->pid, "audio"));
 895
 896         for (std::vector<eDVBServicePMTHandler::subtitleStream>::const_iterator
 897                         i(subtitleStreams.begin());
 898                         i != subtitleStreams.end(); ++i)
 899                 PyList_AppendSteal(l, createTuple(i->pid, "subtitle"));
 900
 901         PyList_AppendSteal(l, createTuple(pcrPid, "pcr"));
 902
 903         if (textPid != -1)
 904                 PyList_AppendSteal(l, createTuple(textPid, "text"));
 905
 906         PyDict_SetItemString(r, "pids", l);
 907         return r;
 908 }