lib/service/servicedvbrecord.cpp

   1 #include <lib/service/servicedvbrecord.h>
   2 #include <lib/base/eerror.h>
   3 #include <lib/dvb/epgcache.h>
   4 #include <fcntl.h>
   5
   6 DEFINE_REF(eDVBServiceRecord);
   7
   8 eDVBServiceRecord::eDVBServiceRecord(const eServiceReferenceDVB &ref): m_ref(ref)
   9 {
  10         CONNECT(m_service_handler.serviceEvent, eDVBServiceRecord::serviceEvent);
  11         m_state = stateIdle;
  12         m_want_record = 0;
  13         m_tuned = 0;
  14         m_target_fd = -1;
  15         m_error = 0;
  16         m_streaming = 0;
  17         m_simulate = false;
  18 }
  19
  20 void eDVBServiceRecord::serviceEvent(int event)
  21 {
  22         eDebug("RECORD service event %d", event);
  23         switch (event)
  24         {
  25         case eDVBServicePMTHandler::eventTuned:
  26         {
  27                 eDebug("tuned..");
  28                 m_tuned = 1;
  29                 if (m_state == stateRecording && m_want_record)
  30                         doRecord();
  31                 m_event((iRecordableService*)this, evTunedIn);
  32                 break;
  33         }
  34         case eDVBServicePMTHandler::eventTuneFailed:
  35         {
  36                 eDebug("record failed to tune");
  37                 m_event((iRecordableService*)this, evTuneFailed);
  38                 break;
  39         }
  40         case eDVBServicePMTHandler::eventNewProgramInfo:
  41         {
  42                 if (m_state == stateIdle)
  43                         doPrepare();
  44                 else if (m_want_record) /* doRecord can be called from Prepared and Recording state */
  45                         doRecord();
  46                 m_event((iRecordableService*)this, evNewProgramInfo);
  47                 break;
  48         }
  49         case eDVBServicePMTHandler::eventMisconfiguration:
  50                 m_error = errMisconfiguration;
  51                 m_event((iRecordableService*)this, evTuneFailed);
  52                 break;
  53         case eDVBServicePMTHandler::eventNoResources:
  54                 m_error = errNoResources;
  55                 m_event((iRecordableService*)this, evTuneFailed);
  56                 break;
  57         }
  58 }
  59
  60 RESULT eDVBServiceRecord::prepare(const char *filename, time_t begTime, time_t endTime, int eit_event_id)
  61 {
  62         m_filename = filename;
  63         m_streaming = 0;
  64
  65         if (m_state == stateIdle)
  66         {
  67                 int ret = doPrepare();
  68                 if (!ret)
  69                 {
  70                         eEPGCache::getInstance()->Lock();
  71                         const eit_event_struct *event = 0;
  72                         eServiceReferenceDVB ref = m_ref.getParentServiceReference();
  73                         if (!ref.valid())
  74                                 ref = m_ref;
  75                         if ( eit_event_id != -1 )
  76                         {
  77                                 eDebug("query epg event id %d", eit_event_id);
  78                                 eEPGCache::getInstance()->lookupEventId(ref, eit_event_id, event);
  79                         }
  80                         if ( !event && (begTime != -1 && endTime != -1) )
  81                         {
  82                                 time_t queryTime = begTime + ((endTime-begTime)/2);
  83                                 tm beg, end, query;
  84                                 localtime_r(&begTime, &beg);
  85                                 localtime_r(&endTime, &end);
  86                                 localtime_r(&queryTime, &query);
  87                                 eDebug("query stime %d:%d:%d, etime %d:%d:%d, qtime %d:%d:%d",
  88                                         beg.tm_hour, beg.tm_min, beg.tm_sec,
  89                                         end.tm_hour, end.tm_min, end.tm_sec,
  90                                         query.tm_hour, query.tm_min, query.tm_sec);
  91                                 eEPGCache::getInstance()->lookupEventTime(ref, queryTime, event);
  92                         }
  93                         if ( event )
  94                         {
  95                                 eDebug("found event.. store to disc");
  96                                 std::string fname = filename;
  97                                 fname.erase(fname.length()-2, 2);
  98                                 fname+="eit";
  99                                 int fd = open(fname.c_str(), O_CREAT|O_WRONLY, 0777);
 100                                 if (fd>-1)
 101                                 {
 102                                         int evLen=HILO(event->descriptors_loop_length)+12/*EIT_LOOP_SIZE*/;
 103                                         int wr = ::write( fd, (unsigned char*)event, evLen );
 104                                         if ( wr != evLen )
 105                                                 eDebug("eit write error (%m)");
 106                                         ::close(fd);
 107                                 }
 108                         }
 109                         eEPGCache::getInstance()->Unlock();
 110                 }
 111                 return ret;
 112         }
 113         else
 114                 return -1;
 115 }
 116
 117 RESULT eDVBServiceRecord::prepareStreaming()
 118 {
 119         m_filename = "";
 120         m_streaming = 1;
 121         if (m_state == stateIdle)
 122                 return doPrepare();
 123         return -1;
 124 }
 125
 126 RESULT eDVBServiceRecord::start(bool simulate)
 127 {
 128         m_simulate = simulate;
 129         m_want_record = 1;
 130                 /* when tune wasn't yet successfully, doRecord stays in "prepared"-state which is fine. */
 131         m_event((iRecordableService*)this, evStart);
 132         return doRecord();
 133 }
 134
 135 RESULT eDVBServiceRecord::stop()
 136 {
 137         if (!m_simulate)
 138                 eDebug("stop recording!");
 139         if (m_state == stateRecording)
 140         {
 141                 if (m_record)
 142                         m_record->stop();
 143                 if (m_target_fd >= 0)
 144                 {
 145                         ::close(m_target_fd);
 146                         m_target_fd = -1;
 147                 }
 148                 m_state = statePrepared;
 149         } else if (!m_simulate)
 150                 eDebug("(was not recording)");
 151         if (m_state == statePrepared)
 152         {
 153                 m_record = 0;
 154                 m_state = stateIdle;
 155         }
 156         m_event((iRecordableService*)this, evRecordStopped);
 157         return 0;
 158 }
 159
 160 int eDVBServiceRecord::doPrepare()
 161 {
 162                 /* allocate a ts recorder if we don't already have one. */
 163         if (m_state == stateIdle)
 164         {
 165                 m_pids_active.clear();
 166                 m_state = statePrepared;
 167                 return m_service_handler.tune(m_ref, 0, 0, m_simulate);
 168         }
 169         return 0;
 170 }
 171
 172 int eDVBServiceRecord::doRecord()
 173 {
 174         int err = doPrepare();
 175         if (err)
 176         {
 177                 m_error = errTuneFailed;
 178                 m_event((iRecordableService*)this, evRecordFailed);
 179                 return err;
 180         }
 181
 182         if (!m_tuned)
 183                 return 0; /* try it again when we are tuned in */
 184
 185         if (!m_record && m_tuned && !m_streaming && !m_simulate)
 186         {
 187                 eDebug("Recording to %s...", m_filename.c_str());
 188                 ::remove(m_filename.c_str());
 189                 int fd = ::open(m_filename.c_str(), O_WRONLY|O_CREAT|O_LARGEFILE, 0644);
 190                 if (fd == -1)
 191                 {
 192                         eDebug("eDVBServiceRecord - can't open recording file!");
 193                         m_error = errOpenRecordFile;
 194                         m_event((iRecordableService*)this, evRecordFailed);
 195                         return errOpenRecordFile;
 196                 }
 197
 198                         /* turn off kernel caching strategies */
 199                 posix_fadvise(fd, 0, 0, POSIX_FADV_RANDOM);
 200
 201                 ePtr<iDVBDemux> demux;
 202                 if (m_service_handler.getDataDemux(demux))
 203                 {
 204                         eDebug("eDVBServiceRecord - NO DEMUX available!");
 205                         m_error = errNoDemuxAvailable;
 206                         m_event((iRecordableService*)this, evRecordFailed);
 207                         return errNoDemuxAvailable;
 208                 }
 209                 demux->createTSRecorder(m_record);
 210                 if (!m_record)
 211                 {
 212                         eDebug("eDVBServiceRecord - no ts recorder available.");
 213                         m_error = errNoTsRecorderAvailable;
 214                         m_event((iRecordableService*)this, evRecordFailed);
 215                         return errNoTsRecorderAvailable;
 216                 }
 217                 m_record->setTargetFD(fd);
 218                 m_record->setTargetFilename(m_filename.c_str());
 219                 m_record->connectEvent(slot(*this, &eDVBServiceRecord::recordEvent), m_con_record_event);
 220
 221                 m_target_fd = fd;
 222         }
 223
 224         if (m_streaming)
 225         {
 226                 m_state = stateRecording;
 227                 eDebug("start streaming...");
 228         } else
 229         {
 230                 eDebug("start recording...");
 231
 232                 eDVBServicePMTHandler::program program;
 233                 if (m_service_handler.getProgramInfo(program))
 234                         eDebug("getting program info failed.");
 235                 else
 236                 {
 237                         std::set<int> pids_to_record;
 238
 239                         pids_to_record.insert(0); // PAT
 240
 241                         if (program.pmtPid != -1)
 242                                 pids_to_record.insert(program.pmtPid); // PMT
 243
 244                         int timing_pid = -1;
 245
 246                         eDebugNoNewLine("RECORD: have %d video stream(s)", program.videoStreams.size());
 247                         if (!program.videoStreams.empty())
 248                         {
 249                                 eDebugNoNewLine(" (");
 250                                 for (std::vector<eDVBServicePMTHandler::videoStream>::const_iterator
 251                                         i(program.videoStreams.begin());
 252                                         i != program.videoStreams.end(); ++i)
 253                                 {
 254                                         pids_to_record.insert(i->pid);
 255
 256                                         if (timing_pid == -1)
 257                                                 timing_pid = i->pid;
 258
 259                                         if (i != program.videoStreams.begin())
 260                                                         eDebugNoNewLine(", ");
 261                                         eDebugNoNewLine("%04x", i->pid);
 262                                 }
 263                                 eDebugNoNewLine(")");
 264                         }
 265                         eDebugNoNewLine(", and %d audio stream(s)", program.audioStreams.size());
 266                         if (!program.audioStreams.empty())
 267                         {
 268                                 eDebugNoNewLine(" (");
 269                                 for (std::vector<eDVBServicePMTHandler::audioStream>::const_iterator
 270                                         i(program.audioStreams.begin());
 271                                         i != program.audioStreams.end(); ++i)
 272                                 {
 273                                         pids_to_record.insert(i->pid);
 274
 275                                         if (timing_pid == -1)
 276                                                 timing_pid = i->pid;
 277
 278                                         if (i != program.audioStreams.begin())
 279                                                 eDebugNoNewLine(", ");
 280                                         eDebugNoNewLine("%04x", i->pid);
 281                                 }
 282                                 eDebugNoNewLine(")");
 283                         }
 284                         if (!program.subtitleStreams.empty())
 285                         {
 286                                 eDebugNoNewLine(" (");
 287                                 for (std::vector<eDVBServicePMTHandler::subtitleStream>::const_iterator
 288                                         i(program.subtitleStreams.begin());
 289                                         i != program.subtitleStreams.end(); ++i)
 290                                 {
 291                                         pids_to_record.insert(i->pid);
 292
 293                                         if (i != program.subtitleStreams.begin())
 294                                                 eDebugNoNewLine(", ");
 295                                         eDebugNoNewLine("%04x", i->pid);
 296                                 }
 297                                 eDebugNoNewLine(")");
 298                         }
 299                         eDebugNoNewLine(", and the pcr pid is %04x", program.pcrPid);
 300                         if (program.pcrPid != 0x1fff)
 301                                 pids_to_record.insert(program.pcrPid);
 302                         eDebug(", and the text pid is %04x", program.textPid);
 303                         if (program.textPid != -1)
 304                                 pids_to_record.insert(program.textPid); // Videotext
 305
 306                                 /* find out which pids are NEW and which pids are obsolete.. */
 307                         std::set<int> new_pids, obsolete_pids;
 308
 309                         std::set_difference(pids_to_record.begin(), pids_to_record.end(),
 310                                         m_pids_active.begin(), m_pids_active.end(),
 311                                         std::inserter(new_pids, new_pids.begin()));
 312
 313                         std::set_difference(
 314                                         m_pids_active.begin(), m_pids_active.end(),
 315                                         pids_to_record.begin(), pids_to_record.end(),
 316                                         std::inserter(new_pids, new_pids.begin())
 317                                         );
 318
 319                         for (std::set<int>::iterator i(new_pids.begin()); i != new_pids.end(); ++i)
 320                         {
 321                                 eDebug("ADD PID: %04x", *i);
 322                                 m_record->addPID(*i);
 323                         }
 324
 325                         for (std::set<int>::iterator i(obsolete_pids.begin()); i != obsolete_pids.end(); ++i)
 326                         {
 327                                 eDebug("REMOVED PID: %04x", *i);
 328                                 m_record->removePID(*i);
 329                         }
 330
 331                         if (timing_pid != -1)
 332                                 m_record->setTimingPID(timing_pid);
 333
 334                         m_pids_active = pids_to_record;
 335
 336                         if (m_state != stateRecording)
 337                         {
 338                                 m_record->start();
 339                                 m_state = stateRecording;
 340                         }
 341                 }
 342         }
 343         m_error = 0;
 344         m_event((iRecordableService*)this, evRecordRunning);
 345         return 0;
 346 }
 347
 348 RESULT eDVBServiceRecord::frontendInfo(ePtr<iFrontendInformation> &ptr)
 349 {
 350         ptr = this;
 351         return 0;
 352 }
 353
 354 RESULT eDVBServiceRecord::connectEvent(const Slot2<void,iRecordableService*,int> &event, ePtr<eConnection> &connection)
 355 {
 356         connection = new eConnection((iRecordableService*)this, m_event.connect(event));
 357         return 0;
 358 }
 359
 360 RESULT eDVBServiceRecord::stream(ePtr<iStreamableService> &ptr)
 361 {
 362         ptr = this;
 363         return 0;
 364 }
 365
 366 extern void PutToDict(ePyObject &dict, const char*key, long val);  // defined in dvb/frontend.cpp
 367
 368 PyObject *eDVBServiceRecord::getStreamingData()
 369 {
 370         eDVBServicePMTHandler::program program;
 371         if (!m_tuned || m_service_handler.getProgramInfo(program))
 372         {
 373                 Py_RETURN_NONE;
 374         }
 375
 376         ePyObject r = program.createPythonObject();
 377         ePtr<iDVBDemux> demux;
 378         if (!m_service_handler.getDataDemux(demux))
 379         {
 380                 uint8_t demux_id;
 381                 if (!demux->getCADemuxID(demux_id))
 382                         PutToDict(r, "demux", demux_id);
 383         }
 384
 385         return r;
 386 }
 387
 388 void eDVBServiceRecord::recordEvent(int event)
 389 {
 390         switch (event)
 391         {
 392         case iDVBTSRecorder::eventWriteError:
 393                 eWarning("[eDVBServiceRecord] record write error");
 394                 stop();
 395                 m_event((iRecordableService*)this, evRecordWriteError);
 396                 return;
 397         default:
 398                 eDebug("unhandled record event %d", event);
 399         }
 400 }