code.vuplus.com Git - vuplus_dvbapp/blob - lib/dvb/pmt.cpp

   1 #include <lib/base/nconfig.h> // access to python config
   2 #include <lib/base/eerror.h>
   3 #include <lib/dvb/pmt.h>
   4 #include <lib/dvb/specs.h>
   5 #include <lib/dvb/dvb.h>
   6 #include <lib/dvb/metaparser.h>
   7 #include <lib/dvb_ci/dvbci.h>
   8 #include <lib/dvb/epgcache.h>
   9 #include <lib/dvb/scan.h>
  10 #include <lib/dvb_ci/dvbci_session.h>
  11 #include <dvbsi++/ca_descriptor.h>
  12 #include <dvbsi++/ca_program_map_section.h>
  13 #include <dvbsi++/teletext_descriptor.h>
  14 #include <dvbsi++/descriptor_tag.h>
  15 #include <dvbsi++/iso639_language_descriptor.h>
  16 #include <dvbsi++/stream_identifier_descriptor.h>
  17 #include <dvbsi++/subtitling_descriptor.h>
  18 #include <dvbsi++/teletext_descriptor.h>
  19 #include <dvbsi++/video_stream_descriptor.h>
  20 #include <dvbsi++/registration_descriptor.h>
  21
  22 eDVBServicePMTHandler::eDVBServicePMTHandler()
  23         :m_ca_servicePtr(0), m_dvb_scan(0), m_decode_demux_num(0xFF)
  24 {
  25         m_use_decode_demux = 0;
  26         m_pmt_pid = -1;
  27         eDVBResourceManager::getInstance(m_resourceManager);
  28         CONNECT(m_PMT.tableReady, eDVBServicePMTHandler::PMTready);
  29         CONNECT(m_PAT.tableReady, eDVBServicePMTHandler::PATready);
  30 }
  31
  32 eDVBServicePMTHandler::~eDVBServicePMTHandler()
  33 {
  34         free();
  35 }
  36
  37 void eDVBServicePMTHandler::channelStateChanged(iDVBChannel *channel)
  38 {
  39         int state;
  40         channel->getState(state);
  41
  42         if ((m_last_channel_state != iDVBChannel::state_ok)
  43                 && (state == iDVBChannel::state_ok) && (!m_demux))
  44         {
  45                 if (m_channel)
  46                         if (m_channel->getDemux(m_demux, (!m_use_decode_demux) ? 0 : iDVBChannel::capDecode))
  47                                 eDebug("Allocating %s-decoding a demux for now tuned-in channel failed.", m_use_decode_demux ? "" : "non-");
  48
  49                 serviceEvent(eventTuned);
  50
  51                 if (m_demux)
  52                 {
  53                         eDebug("ok ... now we start!!");
  54
  55                         if (!m_service || m_service->usePMT())
  56                         {
  57                                 if (m_pmt_pid == -1)
  58                                         m_PAT.begin(eApp, eDVBPATSpec(), m_demux);
  59                                 else
  60                                         m_PMT.begin(eApp, eDVBPMTSpec(m_pmt_pid, m_reference.getServiceID().get()), m_demux);
  61                         }
  62
  63                         if ( m_service && !m_service->cacheEmpty() )
  64                                 serviceEvent(eventNewProgramInfo);
  65                 }
  66         } else if ((m_last_channel_state != iDVBChannel::state_failed) &&
  67                         (state == iDVBChannel::state_failed))
  68         {
  69                 eDebug("tune failed.");
  70                 serviceEvent(eventTuneFailed);
  71         }
  72 }
  73
  74 void eDVBServicePMTHandler::channelEvent(iDVBChannel *channel, int event)
  75 {
  76         switch (event)
  77         {
  78         case iDVBChannel::evtPreStart:
  79                 serviceEvent(eventPreStart);
  80                 break;
  81         case iDVBChannel::evtEOF:
  82                 serviceEvent(eventEOF);
  83                 break;
  84         case iDVBChannel::evtSOF:
  85                 serviceEvent(eventSOF);
  86                 break;
  87         default:
  88                 break;
  89         }
  90 }
  91
  92 void eDVBServicePMTHandler::PMTready(int error)
  93 {
  94         if (error)
  95                 serviceEvent(eventNoPMT);
  96         else
  97         {
  98                 m_have_cached_program = false;
  99                 serviceEvent(eventNewProgramInfo);
 100                 if (!m_pvr_channel) // don't send campmt to camd.socket for playbacked services
 101                 {
 102                         eEPGCache::getInstance()->PMTready(this);
 103                         if(!m_ca_servicePtr)
 104                         {
 105                                 int demuxes[2] = {0,0};
 106                                 uint8_t tmp;
 107                                 m_demux->getCADemuxID(tmp);
 108                                 demuxes[0]=tmp;
 109                                 if (m_decode_demux_num != 0xFF)
 110                                         demuxes[1]=m_decode_demux_num;
 111                                 else
 112                                         demuxes[1]=demuxes[0];
 113                                 eDVBCAService::register_service(m_reference, demuxes, m_ca_servicePtr);
 114                                 eDVBCIInterfaces::getInstance()->recheckPMTHandlers();
 115                         }
 116                         eDVBCIInterfaces::getInstance()->gotPMT(this);
 117                 }
 118                 if (m_ca_servicePtr)
 119                 {
 120                         ePtr<eTable<ProgramMapSection> > ptr;
 121                         if (!m_PMT.getCurrent(ptr))
 122                                 m_ca_servicePtr->buildCAPMT(ptr);
 123                         else
 124                                 eDebug("eDVBServicePMTHandler cannot call buildCAPMT");
 125                 }
 126         }
 127 }
 128
 129 void eDVBServicePMTHandler::PATready(int)
 130 {
 131         ePtr<eTable<ProgramAssociationSection> > ptr;
 132         if (!m_PAT.getCurrent(ptr))
 133         {
 134                 int pmtpid = -1;
 135                 std::vector<ProgramAssociationSection*>::const_iterator i;
 136                 for (i = ptr->getSections().begin(); pmtpid == -1 && i != ptr->getSections().end(); ++i)
 137                 {
 138                         const ProgramAssociationSection &pat = **i;
 139                         ProgramAssociationConstIterator program;
 140                         for (program = pat.getPrograms()->begin(); pmtpid == -1 && program != pat.getPrograms()->end(); ++program)
 141                                 if (eServiceID((*program)->getProgramNumber()) == m_reference.getServiceID())
 142                                         pmtpid = (*program)->getProgramMapPid();
 143                 }
 144                 if (pmtpid == -1)
 145                         serviceEvent(eventNoPATEntry);
 146                 else
 147                         m_PMT.begin(eApp, eDVBPMTSpec(pmtpid, m_reference.getServiceID().get()), m_demux);
 148         } else
 149                 serviceEvent(eventNoPAT);
 150 }
 151
 152 PyObject *eDVBServicePMTHandler::getCaIds(bool pair)
 153 {
 154         ePyObject ret;
 155
 156         program prog;
 157
 158         if ( !getProgramInfo(prog) )
 159         {
 160                 if (pair)
 161                 {
 162                         int cnt=prog.caids.size();
 163                         if (cnt)
 164                         {
 165                                 ret=PyList_New(cnt);
 166                                 std::list<program::capid_pair>::iterator it(prog.caids.begin());
 167                                 while(cnt--)
 168                                 {
 169                                         ePyObject tuple = PyTuple_New(2);
 170                                         PyTuple_SET_ITEM(tuple, 0, PyInt_FromLong(it->caid));
 171                                         PyTuple_SET_ITEM(tuple, 1, PyInt_FromLong((it++)->capid));
 172                                         PyList_SET_ITEM(ret, cnt, tuple);
 173                                 }
 174                         }
 175                 }
 176                 else
 177                 {
 178                         std::set<program::capid_pair> set(prog.caids.begin(), prog.caids.end());
 179                         std::set<program::capid_pair>::iterator it(set.begin());
 180                         int cnt=set.size();
 181                         ret=PyList_New(cnt);
 182                         while(cnt--)
 183                                 PyList_SET_ITEM(ret, cnt, PyInt_FromLong((it++)->caid));
 184                 }
 185         }
 186
 187         return ret ? (PyObject*)ret : (PyObject*)PyList_New(0);
 188 }
 189
 190 int eDVBServicePMTHandler::getProgramInfo(program &program)
 191 {
 192         ePtr<eTable<ProgramMapSection> > ptr;
 193         int cached_apid_ac3 = -1;
 194         int cached_apid_mpeg = -1;
 195         int cached_vpid = -1;
 196         int cached_tpid = -1;
 197         int ret = -1;
 198
 199         program.videoStreams.clear();
 200         program.audioStreams.clear();
 201         program.pcrPid = -1;
 202         program.pmtPid = -1;
 203         program.textPid = -1;
 204
 205         int first_ac3 = -1;
 206         program.defaultAudioStream = 0;
 207         audioStream *prev_audio = 0;
 208
 209         if ( m_service && !m_service->cacheEmpty() )
 210         {
 211                 cached_vpid = m_service->getCacheEntry(eDVBService::cVPID);
 212                 cached_apid_mpeg = m_service->getCacheEntry(eDVBService::cAPID);
 213                 cached_apid_ac3 = m_service->getCacheEntry(eDVBService::cAC3PID);
 214                 cached_tpid = m_service->getCacheEntry(eDVBService::cTPID);
 215         }
 216
 217         if ( ((m_service && m_service->usePMT()) || !m_service) && !m_PMT.getCurrent(ptr))
 218         {
 219                 if (m_have_cached_program)
 220                 {
 221                         program = m_cached_program;
 222                         ret = 0;
 223                 }
 224                 else
 225                 {
 226                         eDVBTableSpec table_spec;
 227                         ptr->getSpec(table_spec);
 228                         program.pmtPid = table_spec.pid < 0x1fff ? table_spec.pid : -1;
 229                         std::vector<ProgramMapSection*>::const_iterator i;
 230                         for (i = ptr->getSections().begin(); i != ptr->getSections().end(); ++i)
 231                         {
 232                                 const ProgramMapSection &pmt = **i;
 233                                 program.pcrPid = pmt.getPcrPid();
 234
 235                                 ElementaryStreamInfoConstIterator es;
 236                                 for (es = pmt.getEsInfo()->begin(); es != pmt.getEsInfo()->end(); ++es)
 237                                 {
 238                                         int isaudio = 0, isvideo = 0, issubtitle = 0, forced_video = 0, forced_audio = 0, isteletext = 0;
 239                                         int streamtype = (*es)->getType();
 240                                         videoStream video;
 241                                         audioStream audio;
 242                                         audio.component_tag=video.component_tag=-1;
 243                                         video.type = videoStream::vtMPEG2;
 244                                         audio.type = audioStream::atMPEG;
 245                                         audio.rdsPid = -1;
 246
 247                                         switch (streamtype)
 248                                         {
 249                                         case 0x1b: // AVC Video Stream (MPEG4 H264)
 250                                                 video.type = videoStream::vtMPEG4_H264;
 251                                                 isvideo = 1;
 252                                                 //break; fall through !!!
 253                                         case 0x10: // MPEG 4 Part 2
 254                                                 if (!isvideo)
 255                                                 {
 256                                                         video.type = videoStream::vtMPEG4_Part2;
 257                                                         isvideo = 1;
 258                                                 }
 259                                                 //break; fall through !!!
 260                                         case 0x01: // MPEG 1 video
 261                                                 if (!isvideo)
 262                                                         video.type = videoStream::vtMPEG1;
 263                                                 //break; fall through !!!
 264                                         case 0x02: // MPEG 2 video
 265                                                 isvideo = 1;
 266                                                 forced_video = 1;
 267                                                 //break; fall through !!!
 268                                         case 0x03: // MPEG 1 audio
 269                                         case 0x04: // MPEG 2 audio:
 270                                                 if (!isvideo) {
 271                                                         isaudio = 1;
 272                                                         forced_audio = 1;
 273                                                 }
 274                                                 //break; fall through !!!
 275                                         case 0x0f: // MPEG 2 AAC
 276                                                 if (!isvideo && !isaudio)
 277                                                 {
 278                                                         isaudio = 1;
 279                                                         audio.type = audioStream::atAAC;
 280                                                         forced_audio = 1;
 281                                                 }
 282                                                 //break; fall through !!!
 283                                         case 0x11: // MPEG 4 AAC
 284                                                 if (!isvideo && !isaudio)
 285                                                 {
 286                                                         isaudio = 1;
 287                                                         audio.type = audioStream::atAACHE;
 288                                                         forced_audio = 1;
 289                                                 }
 290                                         case 0x80: // user private ... but blueray LPCM
 291                                                 if (!isvideo && !isaudio)
 292                                                 {
 293                                                         isaudio = 1;
 294                                                         audio.type = audioStream::atLPCM;
 295                                                 }
 296                                         case 0x81: // user private ... but blueray AC3
 297                                                 if (!isvideo && !isaudio)
 298                                                 {
 299                                                         isaudio = 1;
 300                                                         audio.type = audioStream::atAC3;
 301                                                 }
 302                                         case 0x82: // Blueray DTS (dvb user private...)
 303                                         case 0xA2: // Blueray secondary DTS
 304                                                 if (!isvideo && !isaudio)
 305                                                 {
 306                                                         isaudio = 1;
 307                                                         audio.type = audioStream::atDTS;
 308                                                 }
 309                                         case 0x06: // PES Private
 310                                         case 0xEA: // TS_PSI_ST_SMPTE_VC1
 311                                         {
 312                                                 int num_descriptors = 0;
 313                                                 for (DescriptorConstIterator desc = (*es)->getDescriptors()->begin();
 314                                                         desc != (*es)->getDescriptors()->end(); ++desc)
 315                                                 {
 316                                                         uint8_t tag = (*desc)->getTag();
 317                                                         /* check descriptors to get the exakt stream type. */
 318                                                         ++num_descriptors;
 319                                                         if (!forced_video && !forced_audio)
 320                                                         {
 321                                                                 switch (tag)
 322                                                                 {
 323                                                                 case AUDIO_STREAM_DESCRIPTOR:
 324                                                                         isaudio = 1;
 325                                                                         break;
 326                                                                 case VIDEO_STREAM_DESCRIPTOR:
 327                                                                 {
 328                                                                         isvideo = 1;
 329                                                                         VideoStreamDescriptor *d = (VideoStreamDescriptor*)(*desc);
 330                                                                         if (d->getMpeg1OnlyFlag())
 331                                                                                 video.type = videoStream::vtMPEG1;
 332                                                                         break;
 333                                                                 }
 334                                                                 case SUBTITLING_DESCRIPTOR:
 335                                                                 {
 336                                                                         SubtitlingDescriptor *d = (SubtitlingDescriptor*)(*desc);
 337                                                                         const SubtitlingList *list = d->getSubtitlings();
 338                                                                         subtitleStream s;
 339                                                                         s.pid = (*es)->getPid();
 340                                                                         for (SubtitlingConstIterator it(list->begin()); it != list->end(); ++it)
 341                                                                         {
 342                                                                                 s.subtitling_type = (*it)->getSubtitlingType();
 343                                                                                 switch(s.subtitling_type)
 344                                                                                 {
 345                                                                                 case 0x10 ... 0x13:
 346                                                                                 case 0x20 ... 0x23: // dvb subtitles
 347                                                                                         break;
 348                                                                                 default:
 349                                                                                         eDebug("dvb subtitle %s PID %04x with wrong subtitling type (%02x)... force 0x10!!",
 350                                                                                                 s.language_code.c_str(), s.pid, s.subtitling_type);
 351                                                                                         s.subtitling_type = 0x10;
 352                                                                                         break;
 353                                                                                 }
 354                                                                                 s.composition_page_id = (*it)->getCompositionPageId();
 355                                                                                 s.ancillary_page_id = (*it)->getAncillaryPageId();
 356                                                                                 s.language_code = (*it)->getIso639LanguageCode();
 357 //                                                                              eDebug("add dvb subtitle %s PID %04x, type %d, composition page %d, ancillary_page %d",
 358 //                                                                                      s.language_code.c_str(), s.pid, s.subtitling_type, s.composition_page_id, s.ancillary_page_id);
 359                                                                                 issubtitle=1;
 360                                                                                 program.subtitleStreams.push_back(s);
 361                                                                         }
 362                                                                         break;
 363                                                                 }
 364                                                                 case TELETEXT_DESCRIPTOR:
 365                                                                         if ( program.textPid == -1 || (*es)->getPid() == cached_tpid )
 366                                                                         {
 367                                                                                 subtitleStream s;
 368                                                                                 s.subtitling_type = 0x01; // EBU TELETEXT SUBTITLES
 369                                                                                 s.pid = program.textPid = (*es)->getPid();
 370                                                                                 TeletextDescriptor *d = (TeletextDescriptor*)(*desc);
 371                                                                                 isteletext = 1;
 372                                                                                 const VbiTeletextList *list = d->getVbiTeletexts();
 373                                                                                 for (VbiTeletextConstIterator it(list->begin()); it != list->end(); ++it)
 374                                                                                 {
 375                                                                                         switch((*it)->getTeletextType())
 376                                                                                         {
 377                                                                                         case 0x02: // Teletext subtitle page
 378                                                                                         case 0x05: // Teletext subtitle page for hearing impaired pepople
 379                                                                                                 s.language_code = (*it)->getIso639LanguageCode();
 380                                                                                                 s.teletext_page_number = (*it)->getTeletextPageNumber();
 381                                                                                                 s.teletext_magazine_number = (*it)->getTeletextMagazineNumber();
 382 //                                                                                              eDebug("add teletext subtitle %s PID %04x, page number %d, magazine number %d",
 383 //                                                                                                      s.language_code.c_str(), s.pid, s.teletext_page_number, s.teletext_magazine_number);
 384                                                                                                 program.subtitleStreams.push_back(s);
 385                                                                                                 issubtitle=1;
 386                                                                                         default:
 387                                                                                                 break;
 388                                                                                         }
 389                                                                                 }
 390                                                                         }
 391                                                                         break;
 392                                                                 case DTS_DESCRIPTOR:
 393                                                                         isaudio = 1;
 394                                                                         audio.type = audioStream::atDTS;
 395                                                                         break;
 396                                                                 case 0x2B: // TS_PSI_DT_MPEG2_AAC
 397                                                                         isaudio = 1;
 398                                                                         audio.type = audioStream::atAAC; // MPEG2-AAC
 399                                                                         break;
 400                                                                 case 0x1C: // TS_PSI_DT_MPEG4_Audio
 401                                                                 case AAC_DESCRIPTOR:
 402                                                                         isaudio = 1;
 403                                                                         audio.type = audioStream::atAACHE; // MPEG4-AAC
 404                                                                         break;
 405                                                                 case AC3_DESCRIPTOR:
 406                                                                         isaudio = 1;
 407                                                                         audio.type = audioStream::atAC3;
 408                                                                         break;
 409                                                                 case REGISTRATION_DESCRIPTOR: /* some services don't have a separate AC3 descriptor */
 410                                                                 {
 411                                                                         RegistrationDescriptor *d = (RegistrationDescriptor*)(*desc);
 412                                                                         switch (d->getFormatIdentifier())
 413                                                                         {
 414                                                                         case 0x44545331 ... 0x44545333: // DTS1/DTS2/DTS3
 415                                                                                 isaudio = 1;
 416                                                                                 audio.type = audioStream::atDTS;
 417                                                                                 break;
 418                                                                         case 0x41432d33: // == 'AC-3'
 419                                                                                 isaudio = 1;
 420                                                                                 audio.type = audioStream::atAC3;
 421                                                                                 break;
 422                                                                         case 0x42535344: // == 'BSSD' (LPCM)
 423                                                                                 isaudio = 1;
 424                                                                                 audio.type = audioStream::atLPCM;
 425                                                                                 break;
 426                                                                         case 0x56432d31: // == 'VC-1'
 427                                                                         {
 428                                                                                 const AdditionalIdentificationInfoVector *vec = d->getAdditionalIdentificationInfo();
 429                                                                                 if (vec->size() > 1 && (*vec)[0] == 0x01) // subdescriptor tag
 430                                                                                 {
 431                                                                                         if ((*vec)[1] >= 0x90) // profile_level
 432                                                                                                 video.type = videoStream::vtVC1; // advanced profile
 433                                                                                         else
 434                                                                                                 video.type = videoStream::vtVC1_SM; // simple main
 435                                                                                         isvideo = 1;
 436                                                                                 }
 437                                                                         }
 438                                                                         default:
 439                                                                                 break;
 440                                                                         }
 441                                                                         break;
 442                                                                 }
 443                                                                 case 0x28: // TS_PSI_DT_AVC
 444                                                                         isvideo = 1;
 445                                                                         video.type = videoStream::vtMPEG4_H264;
 446                                                                         break;
 447                                                                 case 0x1B: // TS_PSI_DT_MPEG4_Video
 448                                                                         isvideo = 1;
 449                                                                         video.type = videoStream::vtMPEG4_Part2;
 450                                                                         break;
 451                                                                 default:
 452                                                                         break;
 453                                                                 }
 454                                                         }
 455                                                         switch (tag)
 456                                                         {
 457                                                         case ISO_639_LANGUAGE_DESCRIPTOR:
 458                                                                 if (!isvideo)
 459                                                                 {
 460                                                                         int cnt=0;
 461                                                                         const Iso639LanguageList *languages = ((Iso639LanguageDescriptor*)*desc)->getIso639Languages();
 462                                                                                 /* use last language code */
 463                                                                         for (Iso639LanguageConstIterator i(languages->begin()); i != languages->end(); ++i, ++cnt)
 464                                                                         {
 465                                                                                 if (cnt == 0)
 466                                                                                         audio.language_code = (*i)->getIso639LanguageCode();
 467                                                                                 else
 468                                                                                         audio.language_code += "/" + (*i)->getIso639LanguageCode();
 469                                                                         }
 470                                                                 }
 471                                                                 break;
 472                                                         case STREAM_IDENTIFIER_DESCRIPTOR:
 473                                                                 audio.component_tag =
 474                                                                         video.component_tag =
 475                                                                                 ((StreamIdentifierDescriptor*)*desc)->getComponentTag();
 476                                                                 break;
 477                                                         case CA_DESCRIPTOR:
 478                                                         {
 479                                                                 CaDescriptor *descr = (CaDescriptor*)(*desc);
 480                                                                 program::capid_pair pair;
 481                                                                 pair.caid = descr->getCaSystemId();
 482                                                                 pair.capid = descr->getCaPid();
 483                                                                 program.caids.push_back(pair);
 484                                                                 break;
 485                                                         }
 486                                                         default:
 487                                                                 break;
 488                                                         }
 489                                                 }
 490                                                 if (!num_descriptors && streamtype == 0x06 && prev_audio)
 491                                                 {
 492                                                         prev_audio->rdsPid = (*es)->getPid();
 493                                                         eDebug("Rds PID %04x detected ? ! ?", prev_audio->rdsPid);
 494                                                 }
 495                                                 prev_audio = 0;
 496                                         }
 497                                         default:
 498                                                 break;
 499                                         }
 500                                         if (isteletext && (isaudio || isvideo))
 501                                         {
 502                                                 eDebug("ambiguous streamtype for PID %04x detected.. forced as teletext!", (*es)->getPid());
 503                                                 continue; // continue with next PID
 504                                         }
 505                                         else if (issubtitle && (isaudio || isvideo))
 506                                                 eDebug("ambiguous streamtype for PID %04x detected.. forced as subtitle!", (*es)->getPid());
 507                                         else if (isaudio && isvideo)
 508                                                 eDebug("ambiguous streamtype for PID %04x detected.. forced as video!", (*es)->getPid());
 509                                         if (issubtitle) // continue with next PID
 510                                                 continue;
 511                                         else if (isvideo)
 512                                         {
 513                                                 video.pid = (*es)->getPid();
 514                                                 if ( !program.videoStreams.empty() && video.pid == cached_vpid )
 515                                                 {
 516                                                         program.videoStreams.push_back(program.videoStreams[0]);
 517                                                         program.videoStreams[0] = video;
 518                                                 }
 519                                                 else
 520                                                         program.videoStreams.push_back(video);
 521                                         }
 522                                         else if (isaudio)
 523                                         {
 524                                                 audio.pid = (*es)->getPid();
 525
 526                                                         /* if we find the cached pids, this will be our default stream */
 527                                                 if (audio.pid == cached_apid_ac3 || audio.pid == cached_apid_mpeg)
 528                                                         program.defaultAudioStream = program.audioStreams.size();
 529
 530                                                         /* also, we need to know the first non-mpeg (i.e. "ac3"/dts/...) stream */
 531                                                 if ((audio.type != audioStream::atMPEG) && ((first_ac3 == -1) || (audio.pid == cached_apid_ac3)))
 532                                                         first_ac3 = program.audioStreams.size();
 533
 534                                                 program.audioStreams.push_back(audio);
 535                                                 prev_audio = &program.audioStreams.back();
 536                                         }
 537                                         else
 538                                                 continue;
 539                                 }
 540                                 for (DescriptorConstIterator desc = pmt.getDescriptors()->begin();
 541                                         desc != pmt.getDescriptors()->end(); ++desc)
 542                                 {
 543                                         if ((*desc)->getTag() == CA_DESCRIPTOR)
 544                                         {
 545                                                 CaDescriptor *descr = (CaDescriptor*)(*desc);
 546                                                 program::capid_pair pair;
 547                                                 pair.caid = descr->getCaSystemId();
 548                                                 pair.capid = descr->getCaPid();
 549                                                 program.caids.push_back(pair);
 550                                         }
 551                                 }
 552                         }
 553                         ret = 0;
 554
 555                         /* finally some fixup: if our default audio stream is an MPEG audio stream,
 556                            and we have 'defaultac3' set, use the first available ac3 stream instead.
 557                            (note: if an ac3 audio stream was selected before, this will be also stored
 558                            in 'fisrt_ac3', so we don't need to worry. */
 559                         bool defaultac3 = false;
 560                         std::string default_ac3;
 561
 562                         if (!ePythonConfigQuery::getConfigValue("config.av.defaultac3", default_ac3))
 563                                 defaultac3 = default_ac3 == "True";
 564
 565                         if (defaultac3 && (first_ac3 != -1))
 566                                 program.defaultAudioStream = first_ac3;
 567
 568                         m_cached_program = program;
 569                         m_have_cached_program = true;
 570                 }
 571         } else if ( m_service && !m_service->cacheEmpty() )
 572         {
 573                 int cached_pcrpid = m_service->getCacheEntry(eDVBService::cPCRPID),
 574                         vpidtype = m_service->getCacheEntry(eDVBService::cVTYPE),
 575                         cnt=0;
 576                 if ( vpidtype == -1 )
 577                         vpidtype = videoStream::vtMPEG2;
 578                 if ( cached_vpid != -1 )
 579                 {
 580                         videoStream s;
 581                         s.pid = cached_vpid;
 582                         s.type = vpidtype;
 583                         program.videoStreams.push_back(s);
 584                         ++cnt;
 585                 }
 586                 if ( cached_apid_ac3 != -1 )
 587                 {
 588                         audioStream s;
 589                         s.type = audioStream::atAC3;
 590                         s.pid = cached_apid_ac3;
 591                         s.rdsPid = -1;
 592                         program.audioStreams.push_back(s);
 593                         ++cnt;
 594                 }
 595                 if ( cached_apid_mpeg != -1 )
 596                 {
 597                         audioStream s;
 598                         s.type = audioStream::atMPEG;
 599                         s.pid = cached_apid_mpeg;
 600                         s.rdsPid = -1;
 601                         program.audioStreams.push_back(s);
 602                         ++cnt;
 603                 }
 604                 if ( cached_pcrpid != -1 )
 605                 {
 606                         ++cnt;
 607                         program.pcrPid = cached_pcrpid;
 608                 }
 609                 if ( cached_tpid != -1 )
 610                 {
 611                         ++cnt;
 612                         program.textPid = cached_tpid;
 613                 }
 614                 CAID_LIST &caids = m_service->m_ca;
 615                 for (CAID_LIST::iterator it(caids.begin()); it != caids.end(); ++it) {
 616                         program::capid_pair pair;
 617                         pair.caid = *it;
 618                         pair.capid = -1; // not known yet
 619                         program.caids.push_back(pair);
 620                 }
 621                 if ( cnt )
 622                         ret = 0;
 623         }
 624         return ret;
 625 }
 626
 627 int eDVBServicePMTHandler::getChannel(eUsePtr<iDVBChannel> &channel)
 628 {
 629         channel = m_channel;
 630         if (channel)
 631                 return 0;
 632         else
 633                 return -1;
 634 }
 635
 636 int eDVBServicePMTHandler::getDataDemux(ePtr<iDVBDemux> &demux)
 637 {
 638         demux = m_demux;
 639         if (demux)
 640                 return 0;
 641         else
 642                 return -1;
 643 }
 644
 645 int eDVBServicePMTHandler::getDecodeDemux(ePtr<iDVBDemux> &demux)
 646 {
 647         int ret=0;
 648                 /* if we're using the decoding demux as data source
 649                    (for example in pvr playbacks), return that one. */
 650         if (m_use_decode_demux)
 651         {
 652                 demux = m_demux;
 653                 return ret;
 654         }
 655
 656         ASSERT(m_channel); /* calling without a previous ::tune is certainly bad. */
 657
 658         ret = m_channel->getDemux(demux, iDVBChannel::capDecode);
 659         if (!ret)
 660                 demux->getCADemuxID(m_decode_demux_num);
 661
 662         return ret;
 663 }
 664
 665 int eDVBServicePMTHandler::getPVRChannel(ePtr<iDVBPVRChannel> &pvr_channel)
 666 {
 667         pvr_channel = m_pvr_channel;
 668         if (pvr_channel)
 669                 return 0;
 670         else
 671                 return -1;
 672 }
 673
 674 void eDVBServicePMTHandler::SDTScanEvent(int event)
 675 {
 676         switch (event)
 677         {
 678                 case eDVBScan::evtFinish:
 679                 {
 680                         ePtr<iDVBChannelList> db;
 681                         if (m_resourceManager->getChannelList(db) != 0)
 682                                 eDebug("no channel list");
 683                         else
 684                         {
 685                                 eDVBChannelID chid;
 686                                 m_reference.getChannelID(chid);
 687                                 if (chid == m_dvb_scan->getCurrentChannelID())
 688                                 {
 689                                         m_dvb_scan->insertInto(db, true);
 690                                         eDebug("sdt update done!");
 691                                 }
 692                                 else
 693                                         eDebug("ignore sdt update data.... incorrect transponder tuned!!!");
 694                         }
 695                         break;
 696                 }
 697
 698                 default:
 699                         break;
 700         }
 701 }
 702
 703 int eDVBServicePMTHandler::tune(eServiceReferenceDVB &ref, int use_decode_demux, eCueSheet *cue, bool simulate, eDVBService *service)
 704 {
 705         ePtr<iTsSource> s;
 706         return tuneExt(ref, use_decode_demux, s, NULL, cue, simulate, service);
 707 }
 708
 709 int eDVBServicePMTHandler::tuneExt(eServiceReferenceDVB &ref, int use_decode_demux, ePtr<iTsSource> &source, const char *streaminfo_file, eCueSheet *cue, bool simulate, eDVBService *service)
 710 {
 711         RESULT res=0;
 712         m_reference = ref;
 713
 714         m_use_decode_demux = use_decode_demux;
 715
 716                 /* use given service as backup. This is used for timeshift where we want to clone the live stream using the cache, but in fact have a PVR channel */
 717         m_service = service;
 718
 719                 /* is this a normal (non PVR) channel? */
 720         if (ref.path.empty())
 721         {
 722                 eDVBChannelID chid;
 723                 ref.getChannelID(chid);
 724                 res = m_resourceManager->allocateChannel(chid, m_channel, simulate);
 725                 if (!simulate)
 726                         eDebug("allocate Channel: res %d", res);
 727
 728                 ePtr<iDVBChannelList> db;
 729                 if (!m_resourceManager->getChannelList(db))
 730                         db->getService((eServiceReferenceDVB&)m_reference, m_service);
 731
 732                 if (!res && !simulate)
 733                         eDVBCIInterfaces::getInstance()->addPMTHandler(this);
 734         } else if (!simulate) // no simulation of playback services
 735         {
 736                 if (!ref.getServiceID().get() /* incorrect sid in meta file or recordings.epl*/ )
 737                 {
 738                         eWarning("no .meta file found, trying to find PMT pid");
 739                         eDVBTSTools tstools;
 740                         if (source)
 741                                 tstools.setSource(source, streaminfo_file ? streaminfo_file : ref.path.c_str());
 742                         else if (tstools.openFile(ref.path.c_str()))
 743                                 eWarning("failed to open file");
 744                         else
 745                         {
 746                                 int service_id, pmt_pid;
 747                                 if (!tstools.findPMT(pmt_pid, service_id))
 748                                 {
 749                                         eDebug("PMT pid found on pid %04x, service id %d", pmt_pid, service_id);
 750                                         m_reference.setServiceID(service_id);
 751                                         m_pmt_pid = pmt_pid;
 752                                 }
 753                         }
 754                 }
 755                 eDebug("alloc PVR");
 756                         /* allocate PVR */
 757                 res = m_resourceManager->allocatePVRChannel(m_pvr_channel);
 758                 if (res)
 759                         eDebug("allocatePVRChannel failed!\n");
 760                 m_channel = m_pvr_channel;
 761         }
 762
 763         if (!simulate)
 764         {
 765                 if (m_channel)
 766                 {
 767                         m_channel->connectStateChange(
 768                                 slot(*this, &eDVBServicePMTHandler::channelStateChanged),
 769                                 m_channelStateChanged_connection);
 770                         m_last_channel_state = -1;
 771                         channelStateChanged(m_channel);
 772
 773                         m_channel->connectEvent(
 774                                 slot(*this, &eDVBServicePMTHandler::channelEvent),
 775                                 m_channelEvent_connection);
 776
 777                         if (ref.path.empty())
 778                         {
 779                                 m_dvb_scan = 0;
 780                                 m_dvb_scan = new eDVBScan(m_channel, true, false);
 781                                 m_dvb_scan->connectEvent(slot(*this, &eDVBServicePMTHandler::SDTScanEvent), m_scan_event_connection);
 782                         }
 783                 } else
 784                 {
 785                         if (res == eDVBResourceManager::errAllSourcesBusy)
 786                                 serviceEvent(eventNoResources);
 787                         else /* errChidNotFound, errNoChannelList, errChannelNotInList, errNoSourceFound */
 788                                 serviceEvent(eventMisconfiguration);
 789                         return res;
 790                 }
 791
 792                 if (m_pvr_channel)
 793                 {
 794                         m_pvr_channel->setCueSheet(cue);
 795                         if (source)
 796                                 m_pvr_channel->playSource(source, streaminfo_file);
 797                         else
 798                                 m_pvr_channel->playFile(ref.path.c_str());
 799                 }
 800         }
 801
 802         return res;
 803 }
 804
 805 void eDVBServicePMTHandler::free()
 806 {
 807         m_dvb_scan = 0;
 808
 809         if (m_ca_servicePtr)
 810         {
 811                 int demuxes[2] = {0,0};
 812                 uint8_t tmp;
 813                 m_demux->getCADemuxID(tmp);
 814                 demuxes[0]=tmp;
 815                 if (m_decode_demux_num != 0xFF)
 816                         demuxes[1]=m_decode_demux_num;
 817                 else
 818                         demuxes[1]=demuxes[0];
 819                 ePtr<eTable<ProgramMapSection> > ptr;
 820                 m_PMT.getCurrent(ptr);
 821                 eDVBCAService::unregister_service(m_reference, demuxes, ptr);
 822                 m_ca_servicePtr = 0;
 823         }
 824
 825         if (m_channel)
 826                 eDVBCIInterfaces::getInstance()->removePMTHandler(this);
 827
 828         if (m_pvr_channel)
 829         {
 830                 m_pvr_channel->stopFile();
 831                 m_pvr_channel->setCueSheet(0);
 832         }
 833
 834         m_PMT.stop();
 835         m_PAT.stop();
 836         m_service = 0;
 837         m_channel = 0;
 838         m_pvr_channel = 0;
 839         m_demux = 0;
 840 }
 841
 842 CAServiceMap eDVBCAService::exist;
 843 ChannelMap eDVBCAService::exist_channels;
 844 ePtr<eConnection> eDVBCAService::m_chanAddedConn;
 845
 846 eDVBCAService::eDVBCAService()
 847         :m_buffer(512), m_prev_build_hash(0), m_sendstate(0), m_retryTimer(eTimer::create(eApp))
 848 {
 849         memset(m_used_demux, 0xFF, sizeof(m_used_demux));
 850         CONNECT(m_retryTimer->timeout, eDVBCAService::sendCAPMT);
 851         Connect();
 852 }
 853
 854 eDVBCAService::~eDVBCAService()
 855 {
 856         eDebug("[eDVBCAService] free service %s", m_service.toString().c_str());
 857         ::close(m_sock);
 858 }
 859
 860 // begin static methods
 861 RESULT eDVBCAService::register_service( const eServiceReferenceDVB &ref, int demux_nums[2], eDVBCAService *&caservice )
 862 {
 863         CAServiceMap::iterator it = exist.find(ref);
 864         if ( it != exist.end() )
 865                 caservice = it->second;
 866         else
 867         {
 868                 caservice = (exist[ref]=new eDVBCAService());
 869                 caservice->m_service = ref;
 870                 eDebug("[eDVBCAService] new service %s", ref.toString().c_str() );
 871         }
 872
 873         int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 874         for (int i=0; i < loops; ++i)
 875         {
 876 // search free demux entry
 877                 int iter=0, max_demux_slots = sizeof(caservice->m_used_demux);
 878
 879                 while ( iter < max_demux_slots && caservice->m_used_demux[iter] != 0xFF )
 880                         ++iter;
 881
 882                 if ( iter < max_demux_slots )
 883                 {
 884                         caservice->m_used_demux[iter] = demux_nums[i] & 0xFF;
 885                         eDebug("[eDVBCAService] add demux %d to slot %d service %s", caservice->m_used_demux[iter], iter, ref.toString().c_str());
 886                 }
 887                 else
 888                 {
 889                         eDebug("[eDVBCAService] no more demux slots free for service %s!!", ref.toString().c_str());
 890                         return -1;
 891                 }
 892         }
 893         return 0;
 894 }
 895
 896 RESULT eDVBCAService::unregister_service( const eServiceReferenceDVB &ref, int demux_nums[2], eTable<ProgramMapSection> *ptr )
 897 {
 898         CAServiceMap::iterator it = exist.find(ref);
 899         if ( it == exist.end() )
 900         {
 901                 eDebug("[eDVBCAService] try to unregister non registered %s", ref.toString().c_str());
 902                 return -1;
 903         }
 904         else
 905         {
 906                 eDVBCAService *caservice = it->second;
 907                 int loops = demux_nums[0] != demux_nums[1] ? 2 : 1;
 908                 for (int i=0; i < loops; ++i)
 909                 {
 910                         bool freed = false;
 911                         int iter = 0,
 912                                 used_demux_slots = 0,
 913                                 max_demux_slots = sizeof(caservice->m_used_demux)/sizeof(int);
 914                         while ( iter < max_demux_slots )
 915                         {
 916                                 if ( caservice->m_used_demux[iter] != 0xFF )
 917                                 {
 918                                         if ( !freed && caservice->m_used_demux[iter] == demux_nums[i] )
 919                                         {
 920                                                 eDebug("[eDVBCAService] free slot %d demux %d for service %s", iter, caservice->m_used_demux[iter], caservice->m_service.toString().c_str() );
 921                                                 caservice->m_used_demux[iter] = 0xFF;
 922                                                 freed=true;
 923                                         }
 924                                         else
 925                                                 ++used_demux_slots;
 926                                 }
 927                                 ++iter;
 928                         }
 929                         if (!freed)
 930                                 eDebug("[eDVBCAService] couldn't free demux slot for demux %d", demux_nums[i]);
 931                         if (i || loops == 1)
 932                         {
 933                                 if (!used_demux_slots)  // no more used.. so we remove it
 934                                 {
 935                                         delete it->second;
 936                                         exist.erase(it);
 937                                 }
 938                                 else
 939                                 {
 940                                         if (ptr)
 941                                                 it->second->buildCAPMT(ptr);
 942                                         else
 943                                                 eDebug("[eDVBCAService] can not send updated demux info");
 944                                 }
 945                         }
 946                 }
 947         }
 948         return 0;
 949 }
 950
 951 void eDVBCAService::registerChannelCallback(eDVBResourceManager *res_mgr)
 952 {
 953         res_mgr->connectChannelAdded(slot(&DVBChannelAdded), m_chanAddedConn);
 954 }
 955
 956 void eDVBCAService::DVBChannelAdded(eDVBChannel *chan)
 957 {
 958         if ( chan )
 959         {
 960                 eDebug("[eDVBCAService] new channel %p!", chan);
 961                 channel_data *data = new channel_data();
 962                 data->m_channel = chan;
 963                 data->m_prevChannelState = -1;
 964                 data->m_dataDemux = -1;
 965                 exist_channels[chan] = data;
 966                 chan->connectStateChange(slot(&DVBChannelStateChanged), data->m_stateChangedConn);
 967         }
 968 }
 969
 970 void eDVBCAService::DVBChannelStateChanged(iDVBChannel *chan)
 971 {
 972         ChannelMap::iterator it =
 973                 exist_channels.find(chan);
 974         if ( it != exist_channels.end() )
 975         {
 976                 int state=0;
 977                 chan->getState(state);
 978                 if ( it->second->m_prevChannelState != state )
 979                 {
 980                         switch (state)
 981                         {
 982                                 case iDVBChannel::state_ok:
 983                                 {
 984                                         eDebug("[eDVBCAService] channel %p running", chan);
 985                                         break;
 986                                 }
 987                                 case iDVBChannel::state_release:
 988                                 {
 989                                         eDebug("[eDVBCAService] remove channel %p", chan);
 990                                         unsigned char msg[8] = { 0x9f,0x80,0x3f,0x04,0x83,0x02,0x00,0x00 };
 991                                         msg[7] = it->second->m_dataDemux & 0xFF;
 992                                         int sock, clilen;
 993                                         struct sockaddr_un servaddr;
 994                                         memset(&servaddr, 0, sizeof(struct sockaddr_un));
 995                                         servaddr.sun_family = AF_UNIX;
 996                                         strcpy(servaddr.sun_path, "/tmp/camd.socket");
 997                                         clilen = sizeof(servaddr.sun_family) + strlen(servaddr.sun_path);
 998                                         sock = socket(PF_UNIX, SOCK_STREAM, 0);
 999                                         if (sock > -1)
1000                                         {
1001                                                 connect(sock, (struct sockaddr *) &servaddr, clilen);
1002                                                 fcntl(sock, F_SETFL, O_NONBLOCK);
1003                                                 int val=1;
1004                                                 setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &val, 4);
1005                                                 if (write(sock, msg, 8) != 8)
1006                                                         eDebug("[eDVBCAService] write leave transponder failed!!");
1007                                                 close(sock);
1008                                         }
1009                                         exist_channels.erase(it);
1010                                         delete it->second;
1011                                         it->second=0;
1012                                         break;
1013                                 }
1014                                 default: // ignore all other events
1015                                         return;
1016                         }
1017                         if (it->second)
1018                                 it->second->m_prevChannelState = state;
1019                 }
1020         }
1021 }
1022
1023 channel_data *eDVBCAService::getChannelData(eDVBChannelID &chid)
1024 {
1025         for (ChannelMap::iterator it(exist_channels.begin()); it != exist_channels.end(); ++it)
1026         {
1027                 if (chid == it->second->m_channel->getChannelID())
1028                         return it->second;
1029         }
1030         return 0;
1031 }
1032 // end static methods
1033
1034 #define CA_REPLY_DEBUG
1035 #define MAX_LENGTH_BYTES 4
1036 #define MIN_LENGTH_BYTES 1
1037
1038 void eDVBCAService::socketCB(int what)
1039 {
1040         if (what & (eSocketNotifier::Read | eSocketNotifier::Priority))
1041         {
1042                 char msgbuffer[4096];
1043                 ssize_t length = read(m_sock, msgbuffer, sizeof(msgbuffer));
1044                 if (length == -1)
1045                 {
1046                         if (errno != EAGAIN && errno != EINTR && errno != EBUSY)
1047                         {
1048                                 eDebug("[eSocketMMIHandler] read (%m)");
1049                                 what |= eSocketNotifier::Error;
1050                         }
1051                 } else if (length == 0)
1052                 {
1053                         what |= eSocketNotifier::Hungup;
1054                 } else
1055                 {
1056                         int len = length;
1057                         unsigned char *data = (unsigned char*)msgbuffer;
1058                         int clear = 1;
1059         // If a new message starts, then the previous message
1060         // should already have been processed. Otherwise the
1061         // previous message was incomplete and should therefore
1062         // be deleted.
1063                         if ((len >= 1) && ((data[0] & 0xFF) != 0x9f))
1064                                 clear = 0;
1065                         if ((len >= 2) && ((data[1] & 0x80) != 0x80))
1066                                 clear = 0;
1067                         if ((len >= 3) && ((data[2] & 0x80) != 0x00))
1068                                 clear = 0;
1069                         if (clear)
1070                         {
1071                                 m_buffer.clear();
1072 #ifdef CA_REPLY_DEBUG
1073                                 eDebug("clear buffer");
1074 #endif
1075                         }
1076 #ifdef CA_REPLY_DEBUG
1077                         eDebug("Put to buffer:");
1078                         for (int i=0; i < len; ++i)
1079                                 eDebugNoNewLine("%02x ", data[i]);
1080                         eDebug("\n--------");
1081 #endif
1082                         m_buffer.write( data, len );
1083
1084                         while ( m_buffer.size() >= (3 + MIN_LENGTH_BYTES) )
1085                         {
1086                                 unsigned char tmp[3+MAX_LENGTH_BYTES];
1087                                 m_buffer.peek(tmp, 3+MIN_LENGTH_BYTES);
1088                                 if (((tmp[0] & 0xFF) != 0x9f) || ((tmp[1] & 0x80) != 0x80) || ((tmp[2] & 0x80) != 0x00))
1089                                 {
1090                                         m_buffer.skip(1);
1091 #ifdef CA_REPLY_DEBUG
1092                                         eDebug("skip %02x", tmp[0]);
1093 #endif
1094                                         continue;
1095                                 }
1096                                 if (tmp[3] & 0x80)
1097                                 {
1098                                         int peekLength = (tmp[3] & 0x7f) + 4;
1099                                         if (m_buffer.size() < peekLength)
1100                                                 continue;
1101                                         m_buffer.peek(tmp, peekLength);
1102                                 }
1103                                 int size=0;
1104                                 int LengthBytes=eDVBCISession::parseLengthField(tmp+3, size);
1105                                 int messageLength = 3+LengthBytes+size;
1106                                 if ( m_buffer.size() >= messageLength )
1107                                 {
1108                                         unsigned char dest[messageLength];
1109                                         m_buffer.read(dest, messageLength);
1110 #ifdef CA_REPLY_DEBUG
1111                                         eDebug("dump ca reply:");
1112                                         for (int i=0; i < messageLength; ++i)
1113                                                 eDebugNoNewLine("%02x ", dest[i]);
1114                                         eDebug("\n--------");
1115 #endif
1116 //                                      /*emit*/ mmi_progress(0, dest, (const void*)(dest+3+LengthBytes), messageLength-3-LengthBytes);
1117                                 }
1118                         }
1119                 }
1120         }
1121         if (what & eSocketNotifier::Hungup) {
1122                 /*eDebug("[eDVBCAService] connection closed")*/;
1123                 m_sendstate=1;
1124                 sendCAPMT();
1125         }
1126         if (what & eSocketNotifier::Error)
1127                 eDebug("[eDVBCAService] connection error");
1128 }
1129
1130 void eDVBCAService::Connect()
1131 {
1132         m_sn=0;
1133         memset(&m_servaddr, 0, sizeof(struct sockaddr_un));
1134         m_servaddr.sun_family = AF_UNIX;
1135         strcpy(m_servaddr.sun_path, "/tmp/camd.socket");
1136         m_clilen = sizeof(m_servaddr.sun_family) + strlen(m_servaddr.sun_path);
1137         m_sock = socket(PF_UNIX, SOCK_STREAM, 0);
1138         if (m_sock != -1)
1139         {
1140                 if (!connect(m_sock, (struct sockaddr *) &m_servaddr, m_clilen))
1141                 {
1142                         int val=1;
1143                         fcntl(m_sock, F_SETFL, O_NONBLOCK);
1144                         setsockopt(m_sock, SOL_SOCKET, SO_REUSEADDR, &val, 4);
1145                         m_sn = eSocketNotifier::create(eApp, m_sock,
1146                                 eSocketNotifier::Read|eSocketNotifier::Priority|eSocketNotifier::Error|eSocketNotifier::Hungup);
1147                         CONNECT(m_sn->activated, eDVBCAService::socketCB);
1148
1149                 }
1150 //              else
1151 //                      eDebug("[eDVBCAService] connect failed %m");
1152         }
1153         else
1154                 eDebug("[eDVBCAService] create socket failed %m");
1155 }
1156
1157 void eDVBCAService::buildCAPMT(eTable<ProgramMapSection> *ptr)
1158 {
1159         if (!ptr)
1160                 return;
1161
1162         eDVBTableSpec table_spec;
1163         ptr->getSpec(table_spec);
1164
1165         int pmtpid = table_spec.pid,
1166                 pmt_version = table_spec.version;
1167
1168         uint8_t demux_mask = 0;
1169         int data_demux = -1;
1170
1171         int iter=0, max_demux_slots = sizeof(m_used_demux);
1172         while ( iter < max_demux_slots )
1173         {
1174                 if ( m_used_demux[iter] != 0xFF )
1175                 {
1176                         if ( m_used_demux[iter] > data_demux )
1177                                 data_demux = m_used_demux[iter];
1178                         demux_mask |= (1 << m_used_demux[iter]);
1179                 }
1180                 ++iter;
1181         }
1182
1183         if ( data_demux == -1 )
1184         {
1185                 eDebug("[eDVBCAService] no data demux found for service %s", m_service.toString().c_str() );
1186                 return;
1187         }
1188
1189         eDebug("demux %d mask %02x prevhash %08x", data_demux, demux_mask, m_prev_build_hash);
1190
1191         unsigned int build_hash = ( pmtpid << 16);
1192         build_hash |= (demux_mask << 8);
1193         build_hash |= (pmt_version&0xFF);
1194
1195         if ( build_hash == m_prev_build_hash )
1196         {
1197                 eDebug("[eDVBCAService] don't build/send the same CA PMT twice");
1198                 return;
1199         }
1200
1201         std::vector<ProgramMapSection*>::const_iterator i=ptr->getSections().begin();
1202         if ( i != ptr->getSections().end() )
1203         {
1204                 CaProgramMapSection capmt(*i++, m_prev_build_hash ? 0x05 /*update*/ : 0x03 /*only*/, 0x01 );
1205
1206                 while( i != ptr->getSections().end() )
1207                 {
1208 //                      eDebug("append");
1209                         capmt.append(*i++);
1210                 }
1211
1212                 // add our private descriptors to capmt
1213                 uint8_t tmp[10];
1214
1215                 tmp[0]=0x84;  // pmt pid
1216                 tmp[1]=0x02;
1217                 tmp[2]=pmtpid>>8;
1218                 tmp[3]=pmtpid&0xFF;
1219                 capmt.injectDescriptor(tmp, false);
1220
1221                 tmp[0] = 0x82; // demux
1222                 tmp[1] = 0x02;
1223                 tmp[2] = demux_mask;    // descramble bitmask
1224                 tmp[3] = data_demux&0xFF; // read section data from demux number
1225                 capmt.injectDescriptor(tmp, false);
1226
1227                 tmp[0] = 0x81; // dvbnamespace
1228                 tmp[1] = 0x08;
1229                 tmp[2] = m_service.getDVBNamespace().get()>>24;
1230                 tmp[3]=(m_service.getDVBNamespace().get()>>16)&0xFF;
1231                 tmp[4]=(m_service.getDVBNamespace().get()>>8)&0xFF;
1232                 tmp[5]=m_service.getDVBNamespace().get()&0xFF;
1233                 tmp[6]=m_service.getTransportStreamID().get()>>8;
1234                 tmp[7]=m_service.getTransportStreamID().get()&0xFF;
1235                 tmp[8]=m_service.getOriginalNetworkID().get()>>8;
1236                 tmp[9]=m_service.getOriginalNetworkID().get()&0xFF;
1237                 capmt.injectDescriptor(tmp, false);
1238
1239                 capmt.writeToBuffer(m_capmt);
1240         }
1241
1242         m_prev_build_hash = build_hash;
1243
1244         if ( m_sendstate != 0xFFFFFFFF )
1245                 m_sendstate=0;
1246         sendCAPMT();
1247 }
1248
1249 void eDVBCAService::sendCAPMT()
1250 {
1251         if ( m_sendstate && m_sendstate != 0xFFFFFFFF ) // broken pipe retry
1252         {
1253                 ::close(m_sock);
1254                 Connect();
1255         }
1256
1257         int wp=0;
1258         if ( m_capmt[3] & 0x80 )
1259         {
1260                 int i=0;
1261                 int lenbytes = m_capmt[3] & ~0x80;
1262                 while(i < lenbytes)
1263                         wp = (wp << 8) | m_capmt[4 + i++];
1264                 wp+=4;
1265                 wp+=lenbytes;
1266         }
1267         else
1268         {
1269                 wp = m_capmt[3];
1270                 wp+=4;
1271         }
1272
1273         if ( write(m_sock, m_capmt, wp) == wp )
1274         {
1275                 m_sendstate=0xFFFFFFFF;
1276                 eDebug("[eDVBCAService] send %d bytes",wp);
1277                 eDVBChannelID chid;
1278                 m_service.getChannelID(chid);
1279                 channel_data *data = getChannelData(chid);
1280                 if (data)
1281                 {
1282                         int lenbytes = m_capmt[3] & 0x80 ? m_capmt[3] & ~0x80 : 0;
1283                         data->m_dataDemux = m_capmt[24+lenbytes];
1284                 }
1285 #if 1
1286                 for(int i=0;i<wp;i++)
1287                         eDebugNoNewLine("%02x ", m_capmt[i]);
1288                 eDebug("");
1289 #endif
1290         }
1291         else
1292         {
1293                 switch(m_sendstate)
1294                 {
1295                         case 0xFFFFFFFF:
1296                                 ++m_sendstate;
1297                                 m_retryTimer->start(0,true);
1298 //                              eDebug("[eDVBCAService] send failed .. immediate retry");
1299                                 break;
1300                         default:
1301                                 m_retryTimer->start(5000,true);
1302 //                              eDebug("[eDVBCAService] send failed .. retry in 5 sec");
1303                                 break;
1304                 }
1305                 ++m_sendstate;
1306         }
1307 }
1308
1309 static PyObject *createTuple(int pid, const char *type)
1310 {
1311         PyObject *r = PyTuple_New(2);
1312         PyTuple_SET_ITEM(r, 0, PyInt_FromLong(pid));
1313         PyTuple_SET_ITEM(r, 1, PyString_FromString(type));
1314         return r;
1315 }
1316
1317 static inline void PyList_AppendSteal(PyObject *list, PyObject *item)
1318 {
1319         PyList_Append(list, item);
1320         Py_DECREF(item);
1321 }
1322
1323 extern void PutToDict(ePyObject &dict, const char*key, ePyObject item); // defined in dvb/frontend.cpp
1324
1325 PyObject *eDVBServicePMTHandler::program::createPythonObject()
1326 {
1327         ePyObject r = PyDict_New();
1328         ePyObject l = PyList_New(0);
1329
1330         PyList_AppendSteal(l, createTuple(0, "pat"));
1331
1332         if (pmtPid != -1)
1333                 PyList_AppendSteal(l, createTuple(pmtPid, "pmt"));
1334
1335         for (std::vector<eDVBServicePMTHandler::videoStream>::const_iterator
1336                         i(videoStreams.begin());
1337                         i != videoStreams.end(); ++i)
1338                 PyList_AppendSteal(l, createTuple(i->pid, "video"));
1339
1340         for (std::vector<eDVBServicePMTHandler::audioStream>::const_iterator
1341                         i(audioStreams.begin());
1342                         i != audioStreams.end(); ++i)
1343                 PyList_AppendSteal(l, createTuple(i->pid, "audio"));
1344
1345         for (std::vector<eDVBServicePMTHandler::subtitleStream>::const_iterator
1346                         i(subtitleStreams.begin());
1347                         i != subtitleStreams.end(); ++i)
1348                 PyList_AppendSteal(l, createTuple(i->pid, "subtitle"));
1349
1350         PyList_AppendSteal(l, createTuple(pcrPid, "pcr"));
1351
1352         if (textPid != -1)
1353                 PyList_AppendSteal(l, createTuple(textPid, "text"));
1354
1355         PutToDict(r, "pids", l);
1356
1357         return r;
1358 }