lib/dvb/dvb.cpp

   1 #include <lib/base/eerror.h>
   2 #include <lib/base/filepush.h>
   3 #include <lib/dvb/idvb.h>
   4 #include <lib/dvb/dvb.h>
   5 #include <lib/dvb/sec.h>
   6
   7 #include <errno.h>
   8 #include <sys/types.h>
   9 #include <sys/stat.h>
  10 #include <unistd.h>
  11 #include <fcntl.h>
  12 #include <sys/ioctl.h>
  13
  14 DEFINE_REF(eDVBRegisteredFrontend);
  15 DEFINE_REF(eDVBRegisteredDemux);
  16
  17 DEFINE_REF(eDVBAllocatedFrontend);
  18
  19 eDVBAllocatedFrontend::eDVBAllocatedFrontend(eDVBRegisteredFrontend *fe): m_fe(fe)
  20 {
  21         m_fe->inc_use();
  22 }
  23
  24 eDVBAllocatedFrontend::~eDVBAllocatedFrontend()
  25 {
  26         m_fe->dec_use();
  27 }
  28
  29 DEFINE_REF(eDVBAllocatedDemux);
  30
  31 eDVBAllocatedDemux::eDVBAllocatedDemux(eDVBRegisteredDemux *demux): m_demux(demux)
  32 {
  33         m_demux->m_inuse++;
  34 }
  35
  36 eDVBAllocatedDemux::~eDVBAllocatedDemux()
  37 {
  38         --m_demux->m_inuse;
  39 }
  40
  41 DEFINE_REF(eDVBResourceManager);
  42
  43 eDVBResourceManager *eDVBResourceManager::instance;
  44
  45 eDVBResourceManager::eDVBResourceManager()
  46         :m_releaseCachedChannelTimer(eApp)
  47 {
  48         avail = 1;
  49         busy = 0;
  50         m_sec = new eDVBSatelliteEquipmentControl(m_frontend);
  51         if (!instance)
  52                 instance = this;
  53
  54                 /* search available adapters... */
  55
  56                 // add linux devices
  57
  58         int num_adapter = 0;
  59         while (eDVBAdapterLinux::exist(num_adapter))
  60         {
  61                 addAdapter(new eDVBAdapterLinux(num_adapter));
  62                 num_adapter++;
  63         }
  64
  65         eDebug("found %d adapter, %d frontends and %d demux",
  66                 m_adapter.size(), m_frontend.size(), m_demux.size());
  67
  68         CONNECT(m_releaseCachedChannelTimer.timeout, eDVBResourceManager::releaseCachedChannel);
  69 }
  70
  71
  72 DEFINE_REF(eDVBAdapterLinux);
  73 eDVBAdapterLinux::eDVBAdapterLinux(int nr): m_nr(nr)
  74 {
  75                 // scan frontends
  76         int num_fe = 0;
  77
  78         eDebug("scanning for frontends..");
  79         while (1)
  80         {
  81                 struct stat s;
  82                 char filename[128];
  83 #if HAVE_DVB_API_VERSION < 3
  84                 sprintf(filename, "/dev/dvb/card%d/frontend%d", m_nr, num_fe);
  85 #else
  86                 sprintf(filename, "/dev/dvb/adapter%d/frontend%d", m_nr, num_fe);
  87 #endif
  88                 if (stat(filename, &s))
  89                         break;
  90                 ePtr<eDVBFrontend> fe;
  91
  92                 int ok = 0;
  93                 fe = new eDVBFrontend(m_nr, num_fe, ok);
  94                 if (ok)
  95                         m_frontend.push_back(fe);
  96                 ++num_fe;
  97         }
  98
  99                 // scan demux
 100         int num_demux = 0;
 101         while (1)
 102         {
 103                 struct stat s;
 104                 char filename[128];
 105 #if HAVE_DVB_API_VERSION < 3
 106                 sprintf(filename, "/dev/dvb/card%d/demux%d", m_nr, num_demux);
 107 #else
 108                 sprintf(filename, "/dev/dvb/adapter%d/demux%d", m_nr, num_demux);
 109 #endif
 110                 if (stat(filename, &s))
 111                         break;
 112                 ePtr<eDVBDemux> demux;
 113
 114                 demux = new eDVBDemux(m_nr, num_demux);
 115                 m_demux.push_back(demux);
 116
 117                 ++num_demux;
 118         }
 119 }
 120
 121 int eDVBAdapterLinux::getNumDemux()
 122 {
 123         return m_demux.size();
 124 }
 125
 126 RESULT eDVBAdapterLinux::getDemux(ePtr<eDVBDemux> &demux, int nr)
 127 {
 128         eSmartPtrList<eDVBDemux>::iterator i(m_demux.begin());
 129         while (nr && (i != m_demux.end()))
 130         {
 131                 --nr;
 132                 ++i;
 133         }
 134
 135         if (i != m_demux.end())
 136                 demux = *i;
 137         else
 138                 return -1;
 139
 140         return 0;
 141 }
 142
 143 int eDVBAdapterLinux::getNumFrontends()
 144 {
 145         return m_frontend.size();
 146 }
 147
 148 RESULT eDVBAdapterLinux::getFrontend(ePtr<eDVBFrontend> &fe, int nr)
 149 {
 150         eSmartPtrList<eDVBFrontend>::iterator i(m_frontend.begin());
 151         while (nr && (i != m_frontend.end()))
 152         {
 153                 --nr;
 154                 ++i;
 155         }
 156
 157         if (i != m_frontend.end())
 158                 fe = *i;
 159         else
 160                 return -1;
 161
 162         return 0;
 163 }
 164
 165 int eDVBAdapterLinux::exist(int nr)
 166 {
 167         struct stat s;
 168         char filename[128];
 169 #if HAVE_DVB_API_VERSION < 3
 170         sprintf(filename, "/dev/dvb/card%d", nr);
 171 #else
 172         sprintf(filename, "/dev/dvb/adapter%d", nr);
 173 #endif
 174         if (!stat(filename, &s))
 175                 return 1;
 176         return 0;
 177 }
 178
 179 eDVBResourceManager::~eDVBResourceManager()
 180 {
 181         if (instance == this)
 182                 instance = 0;
 183 }
 184
 185 void eDVBResourceManager::addAdapter(iDVBAdapter *adapter)
 186 {
 187         int num_fe = adapter->getNumFrontends();
 188         int num_demux = adapter->getNumDemux();
 189
 190         m_adapter.push_back(adapter);
 191
 192         int i;
 193         for (i=0; i<num_demux; ++i)
 194         {
 195                 ePtr<eDVBDemux> demux;
 196                 if (!adapter->getDemux(demux, i))
 197                         m_demux.push_back(new eDVBRegisteredDemux(demux, adapter));
 198         }
 199
 200         for (i=0; i<num_fe; ++i)
 201         {
 202                 ePtr<eDVBFrontend> frontend;
 203
 204                 if (!adapter->getFrontend(frontend, i))
 205                 {
 206                         frontend->setSEC(m_sec);
 207                         m_frontend.push_back(new eDVBRegisteredFrontend(frontend, adapter));
 208                 }
 209         }
 210 }
 211
 212 RESULT eDVBResourceManager::allocateFrontend(ePtr<eDVBAllocatedFrontend> &fe, ePtr<iDVBFrontendParameters> &feparm)
 213 {
 214         ePtr<eDVBRegisteredFrontend> best;
 215         int bestval = 0;
 216
 217         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
 218                 if (!i->m_inuse)
 219                 {
 220                         int c = i->m_frontend->isCompatibleWith(feparm);
 221                         if (c > bestval)
 222                         {
 223                                 bestval = c;
 224                                 best = i;
 225                         }
 226                 }
 227
 228         if (best)
 229         {
 230                 fe = new eDVBAllocatedFrontend(best);
 231                 return 0;
 232         }
 233
 234         fe = 0;
 235
 236         return -1;
 237 }
 238
 239 RESULT eDVBResourceManager::allocateFrontendByIndex(ePtr<eDVBAllocatedFrontend> &fe, int nr)
 240 {
 241         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i, --nr)
 242                 if ((!nr) && !i->m_inuse)
 243                 {
 244                         fe = new eDVBAllocatedFrontend(i);
 245                         return 0;
 246                 }
 247
 248         fe = 0;
 249         return -1;
 250 }
 251
 252 RESULT eDVBResourceManager::allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBAllocatedDemux> &demux, int cap)
 253 {
 254                 /* find first unused demux which is on same adapter as frontend (or any, if PVR)
 255                    never use the first one unless we need a decoding demux. */
 256
 257         eDebug("allocate demux");
 258         eSmartPtrList<eDVBRegisteredDemux>::iterator i(m_demux.begin());
 259
 260         if (i == m_demux.end())
 261                 return -1;
 262
 263         int n=0;
 264                 /* FIXME: hardware demux policy */
 265         if (!(cap & iDVBChannel::capDecode))
 266                 ++i, ++n;
 267
 268         for (; i != m_demux.end(); ++i, ++n)
 269                 if ((!i->m_inuse) && ((!fe) || (i->m_adapter == fe->m_adapter)))
 270                 {
 271                         if ((cap & iDVBChannel::capDecode) && n)
 272                                 continue;
 273
 274                         demux = new eDVBAllocatedDemux(i);
 275                         if (fe)
 276                                 demux->get().setSourceFrontend(fe->m_frontend->getID());
 277                         else
 278                                 demux->get().setSourcePVR(0);
 279                         return 0;
 280                 }
 281         eDebug("demux not found");
 282         return -1;
 283 }
 284
 285 RESULT eDVBResourceManager::setChannelList(iDVBChannelList *list)
 286 {
 287         m_list = list;
 288         return 0;
 289 }
 290
 291 RESULT eDVBResourceManager::getChannelList(ePtr<iDVBChannelList> &list)
 292 {
 293         list = m_list;
 294         if (list)
 295                 return 0;
 296         else
 297                 return -ENOENT;
 298 }
 299
 300 RESULT eDVBResourceManager::allocateChannel(const eDVBChannelID &channelid, eUsePtr<iDVBChannel> &channel)
 301 {
 302                 /* first, check if a channel is already existing. */
 303
 304         if (m_cached_channel)
 305         {
 306                 eDVBChannel *cache_chan = (eDVBChannel*)&(*m_cached_channel);
 307                 if(channelid==cache_chan->getChannelID())
 308                 {
 309                         eDebug("use cached_channel");
 310                         channel = m_cached_channel;
 311                         return 0;
 312                 }
 313                 m_cached_channel_state_changed_conn.disconnect();
 314                 m_cached_channel=0;
 315                 m_releaseCachedChannelTimer.stop();
 316         }
 317
 318 //      eDebug("allocate channel.. %04x:%04x", channelid.transport_stream_id.get(), channelid.original_network_id.get());
 319         for (std::list<active_channel>::iterator i(m_active_channels.begin()); i != m_active_channels.end(); ++i)
 320         {
 321 //              eDebug("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
 322                 if (i->m_channel_id == channelid)
 323                 {
 324 //                      eDebug("found shared channel..");
 325                         channel = i->m_channel;
 326                         return 0;
 327                 }
 328         }
 329
 330         /* no currently available channel is tuned to this channelid. create a new one, if possible. */
 331
 332         if (!m_list)
 333         {
 334                 eDebug("no channel list set!");
 335                 return -ENOENT;
 336         }
 337
 338         ePtr<iDVBFrontendParameters> feparm;
 339         if (m_list->getChannelFrontendData(channelid, feparm))
 340         {
 341                 eDebug("channel not found!");
 342                 return -ENOENT;
 343         }
 344
 345         /* allocate a frontend. */
 346
 347         ePtr<eDVBAllocatedFrontend> fe;
 348
 349         if (allocateFrontend(fe, feparm))
 350                 return errNoFrontend;
 351
 352         RESULT res;
 353         ePtr<eDVBChannel> ch;
 354         ch = new eDVBChannel(this, fe);
 355
 356         res = ch->setChannel(channelid, feparm);
 357         if (res)
 358         {
 359                 channel = 0;
 360                 return errChidNotFound;
 361         }
 362         m_cached_channel = channel = ch;
 363         m_cached_channel_state_changed_conn =
 364                 CONNECT(ch->m_stateChanged,eDVBResourceManager::DVBChannelStateChanged);
 365
 366         return 0;
 367 }
 368
 369 void eDVBResourceManager::DVBChannelStateChanged(iDVBChannel *chan)
 370 {
 371         int state=0;
 372         chan->getState(state);
 373         switch (state)
 374         {
 375                 case iDVBChannel::state_release:
 376                 case iDVBChannel::state_ok:
 377                 {
 378                         eDebug("stop release channel timer");
 379                         m_releaseCachedChannelTimer.stop();
 380                         break;
 381                 }
 382                 case iDVBChannel::state_last_instance:
 383                 {
 384                         eDebug("start release channel timer");
 385                         m_releaseCachedChannelTimer.start(3000, true);
 386                         break;
 387                 }
 388                 default: // ignore all other events
 389                         break;
 390         }
 391 }
 392
 393 void eDVBResourceManager::releaseCachedChannel()
 394 {
 395         eDebug("release cached channel (timer timeout)");
 396         m_cached_channel=0;
 397 }
 398
 399 RESULT eDVBResourceManager::allocateRawChannel(eUsePtr<iDVBChannel> &channel, int frontend_index)
 400 {
 401         ePtr<eDVBAllocatedFrontend> fe;
 402
 403         if (m_cached_channel)
 404         {
 405                 m_cached_channel_state_changed_conn.disconnect();
 406                 m_cached_channel=0;
 407                 m_releaseCachedChannelTimer.stop();
 408         }
 409
 410         if (allocateFrontendByIndex(fe, frontend_index))
 411                 return errNoFrontend;
 412
 413         eDVBChannel *ch;
 414         ch = new eDVBChannel(this, fe);
 415
 416         channel = ch;
 417         return 0;
 418 }
 419
 420
 421 RESULT eDVBResourceManager::allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel)
 422 {
 423         ePtr<eDVBAllocatedDemux> demux;
 424
 425         eDVBChannel *ch;
 426         ch = new eDVBChannel(this, 0);
 427
 428         channel = ch;
 429         return 0;
 430 }
 431
 432 RESULT eDVBResourceManager::addChannel(const eDVBChannelID &chid, eDVBChannel *ch)
 433 {
 434         m_active_channels.push_back(active_channel(chid, ch));
 435         /* emit */ m_channelAdded(ch);
 436         return 0;
 437 }
 438
 439 RESULT eDVBResourceManager::removeChannel(eDVBChannel *ch)
 440 {
 441         int cnt = 0;
 442         for (std::list<active_channel>::iterator i(m_active_channels.begin()); i != m_active_channels.end();)
 443         {
 444                 if (i->m_channel == ch)
 445                 {
 446                         i = m_active_channels.erase(i);
 447                         ++cnt;
 448                 } else
 449                         ++i;
 450         }
 451         ASSERT(cnt == 1);
 452         if (cnt == 1)
 453                 return 0;
 454         return -ENOENT;
 455 }
 456
 457 RESULT eDVBResourceManager::connectChannelAdded(const Slot1<void,eDVBChannel*> &channelAdded, ePtr<eConnection> &connection)
 458 {
 459         connection = new eConnection((eDVBResourceManager*)this, m_channelAdded.connect(channelAdded));
 460         return 0;
 461 }
 462
 463 bool eDVBResourceManager::canAllocateFrontend(ePtr<iDVBFrontendParameters> &feparm)
 464 {
 465         ePtr<eDVBRegisteredFrontend> best;
 466         int bestval = 0;
 467
 468         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
 469                 if (!i->m_inuse)
 470                 {
 471                         int c = i->m_frontend->isCompatibleWith(feparm);
 472                         if (c > bestval)
 473                                 bestval = c;
 474                 }
 475
 476         return bestval>0;
 477 }
 478
 479 bool eDVBResourceManager::canAllocateChannel(const eDVBChannelID &channelid, const eDVBChannelID& ignore)
 480 {
 481         bool ret=true;
 482         if (m_cached_channel)
 483         {
 484                 eDVBChannel *cache_chan = (eDVBChannel*)&(*m_cached_channel);
 485                 if(channelid==cache_chan->getChannelID())
 486                         return ret;
 487         }
 488
 489                 /* first, check if a channel is already existing. */
 490 //      eDebug("allocate channel.. %04x:%04x", channelid.transport_stream_id.get(), channelid.original_network_id.get());
 491         for (std::list<active_channel>::iterator i(m_active_channels.begin()); i != m_active_channels.end(); ++i)
 492         {
 493 //              eDebug("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
 494                 if (i->m_channel_id == channelid)
 495                 {
 496 //                      eDebug("found shared channel..");
 497                         return ret;
 498                 }
 499         }
 500
 501         int *decremented_cached_channel_fe_usecount=NULL,
 502                 *decremented_fe_usecount=NULL;
 503
 504         for (std::list<active_channel>::iterator i(m_active_channels.begin()); i != m_active_channels.end(); ++i)
 505         {
 506 //              eDebug("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
 507                 if (i->m_channel_id == ignore)
 508                 {
 509                         eDVBChannel *channel = (eDVBChannel*) &(*i->m_channel);
 510                         if (channel == &(*m_cached_channel) ? channel->getUseCount() == 2 : channel->getUseCount() == 1)  // channel only used once..
 511                         {
 512                                 ePtr<iDVBFrontend> fe;
 513                                 if (!i->m_channel->getFrontend(fe))
 514                                 {
 515                                         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator ii(m_frontend.begin()); ii != m_frontend.end(); ++ii)
 516                                         {
 517                                                 if ( &(*fe) == &(*ii->m_frontend) )
 518                                                 {
 519                                                         --ii->m_inuse;
 520                                                         decremented_fe_usecount = &ii->m_inuse;
 521                                                         if (channel == &(*m_cached_channel))
 522                                                                 decremented_cached_channel_fe_usecount = decremented_fe_usecount;
 523                                                         break;
 524                                                 }
 525                                         }
 526                                 }
 527                         }
 528                         break;
 529                 }
 530         }
 531
 532         if (!decremented_cached_channel_fe_usecount)
 533         {
 534                 if (m_cached_channel)
 535                 {
 536                         eDVBChannel *channel = (eDVBChannel*) &(*m_cached_channel);
 537                         if (channel->getUseCount() == 1)
 538                         {
 539                                 ePtr<iDVBFrontend> fe;
 540                                 if (!channel->getFrontend(fe))
 541                                 {
 542                                         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator ii(m_frontend.begin()); ii != m_frontend.end(); ++ii)
 543                                         {
 544                                                 if ( &(*fe) == &(*ii->m_frontend) )
 545                                                 {
 546                                                         --ii->m_inuse;
 547                                                         decremented_cached_channel_fe_usecount = &ii->m_inuse;
 548                                                         break;
 549                                                 }
 550                                         }
 551                                 }
 552                         }
 553                 }
 554         }
 555         else
 556                 decremented_cached_channel_fe_usecount=NULL;
 557
 558         ePtr<iDVBFrontendParameters> feparm;
 559
 560         if (!m_list)
 561         {
 562                 eDebug("no channel list set!");
 563                 ret = false;
 564                 goto error;
 565         }
 566
 567         if (m_list->getChannelFrontendData(channelid, feparm))
 568         {
 569                 eDebug("channel not found!");
 570                 ret = false;
 571                 goto error;
 572         }
 573
 574         ret = canAllocateFrontend(feparm);
 575
 576 error:
 577         if (decremented_fe_usecount)
 578                 ++(*decremented_fe_usecount);
 579         if (decremented_cached_channel_fe_usecount)
 580                 ++(*decremented_cached_channel_fe_usecount);
 581
 582         return ret;
 583 }
 584
 585 DEFINE_REF(eDVBChannel);
 586
 587 eDVBChannel::eDVBChannel(eDVBResourceManager *mgr, eDVBAllocatedFrontend *frontend): m_state(state_idle), m_mgr(mgr)
 588 {
 589         m_frontend = frontend;
 590
 591         m_pvr_thread = 0;
 592
 593         m_skipmode_n = m_skipmode_m = 0;
 594
 595         if (m_frontend)
 596                 m_frontend->get().connectStateChange(slot(*this, &eDVBChannel::frontendStateChanged), m_conn_frontendStateChanged);
 597 }
 598
 599 eDVBChannel::~eDVBChannel()
 600 {
 601         if (m_channel_id)
 602                 m_mgr->removeChannel(this);
 603
 604         stopFile();
 605 }
 606
 607 void eDVBChannel::frontendStateChanged(iDVBFrontend*fe)
 608 {
 609         int state, ourstate = 0;
 610
 611                 /* if we are already in shutdown, don't change state. */
 612         if (m_state == state_release)
 613                 return;
 614
 615         if (fe->getState(state))
 616                 return;
 617
 618         if (state == iDVBFrontend::stateLock)
 619         {
 620                 eDebug("OURSTATE: ok");
 621                 ourstate = state_ok;
 622         } else if (state == iDVBFrontend::stateTuning)
 623         {
 624                 eDebug("OURSTATE: tuning");
 625                 ourstate = state_tuning;
 626         } else if (state == iDVBFrontend::stateLostLock)
 627         {
 628                         /* on managed channels, we try to retune in order to re-acquire lock. */
 629                 if (m_feparm)
 630                 {
 631                         eDebug("OURSTATE: lost lock, trying to retune");
 632                         ourstate = state_tuning;
 633                         m_frontend->get().tune(*m_feparm);
 634                 } else
 635                         /* on unmanaged channels, we don't do this. the client will do this. */
 636                 {
 637                         eDebug("OURSTATE: lost lock, unavailable now.");
 638                         ourstate = state_unavailable;
 639                 }
 640         } else if (state == iDVBFrontend::stateFailed)
 641         {
 642                 eDebug("OURSTATE: failed");
 643                 ourstate = state_failed;
 644         } else
 645                 eFatal("state unknown");
 646
 647         if (ourstate != m_state)
 648         {
 649                 m_state = ourstate;
 650                 m_stateChanged(this);
 651         }
 652 }
 653
 654 void eDVBChannel::pvrEvent(int event)
 655 {
 656         switch (event)
 657         {
 658         case eFilePushThread::evtEOF:
 659                 eDebug("eDVBChannel: End of file!");
 660                 m_event(this, evtEOF);
 661                 break;
 662         case eFilePushThread::evtUser: /* start */
 663                 eDebug("SOF");
 664                 m_event(this, evtSOF);
 665                 break;
 666         }
 667 }
 668
 669 void eDVBChannel::cueSheetEvent(int event)
 670 {
 671         switch (event)
 672         {
 673         case eCueSheet::evtSeek:
 674                 eDebug("seek.");
 675                 flushPVR(m_cue->m_decoding_demux);
 676                 break;
 677         case eCueSheet::evtSkipmode:
 678         {
 679                 {
 680                         eSingleLocker l(m_cue->m_lock);
 681                         m_cue->m_seek_requests.push_back(std::pair<int, pts_t>(1, 0)); /* resync */
 682                         if (m_cue->m_skipmode_ratio)
 683                         {
 684                                 int bitrate = m_tstools.calcBitrate(); /* in bits/s */
 685                                 eDebug("skipmode ratio is %lld:90000, bitrate is %d bit/s", m_cue->m_skipmode_ratio, bitrate);
 686                                                 /* i agree that this might look a bit like black magic. */
 687                                 m_skipmode_n = 512*1024; /* must be 1 iframe at least. */
 688                                 m_skipmode_m = bitrate / 8 / 90000 * m_cue->m_skipmode_ratio / 8;
 689
 690                                 if (m_cue->m_skipmode_ratio < 0)
 691                                         m_skipmode_m -= m_skipmode_n;
 692
 693                                 eDebug("resolved to: %d %d", m_skipmode_m, m_skipmode_n);
 694
 695                                 if (abs(m_skipmode_m) < abs(m_skipmode_n))
 696                                 {
 697                                         eWarning("something is wrong with this calculation");
 698                                         m_skipmode_n = m_skipmode_m = 0;
 699                                 }
 700
 701                         } else
 702                         {
 703                                 eDebug("skipmode ratio is 0, normal play");
 704                                 m_skipmode_n = m_skipmode_m = 0;
 705                         }
 706                 }
 707                 flushPVR(m_cue->m_decoding_demux);
 708                 break;
 709         }
 710         case eCueSheet::evtSpanChanged:
 711         {
 712                 m_source_span.clear();
 713                 for (std::list<std::pair<pts_t, pts_t> >::const_iterator i(m_cue->m_spans.begin()); i != m_cue->m_spans.end(); ++i)
 714                 {
 715                         off_t offset_in, offset_out;
 716                         pts_t pts_in = i->first, pts_out = i->second;
 717                         if (m_tstools.getOffset(offset_in, pts_in) || m_tstools.getOffset(offset_out, pts_out))
 718                         {
 719                                 eDebug("span translation failed.\n");
 720                                 continue;
 721                         }
 722                         eDebug("source span: %llx .. %llx, translated to %llx..%llx", pts_in, pts_out, offset_in, offset_out);
 723                         m_source_span.push_back(std::pair<off_t, off_t>(offset_in, offset_out));
 724                 }
 725                 break;
 726         }
 727         }
 728 }
 729
 730         /* remember, this gets called from another thread. */
 731 void eDVBChannel::getNextSourceSpan(off_t current_offset, size_t bytes_read, off_t &start, size_t &size)
 732 {
 733         unsigned int max = 10*1024*1024;
 734
 735         if (!m_cue)
 736         {
 737                 eDebug("no cue sheet. forcing normal play");
 738                 start = current_offset;
 739                 size = max;
 740                 return;
 741         }
 742
 743         eSingleLocker l(m_cue->m_lock);
 744
 745         if (!m_cue->m_decoding_demux)
 746         {
 747                 start = current_offset;
 748                 size = max;
 749                 eDebug("getNextSourceSpan, no decoding demux. forcing normal play");
 750                 return;
 751         }
 752
 753         if (m_skipmode_n)
 754         {
 755                 eDebug("skipmode %d:%d", m_skipmode_m, m_skipmode_n);
 756                 max = m_skipmode_n;
 757         }
 758
 759         eDebug("getNextSourceSpan, current offset is %08llx!", current_offset);
 760
 761         current_offset += m_skipmode_m;
 762
 763         while (!m_cue->m_seek_requests.empty())
 764         {
 765                 std::pair<int, pts_t> seek = m_cue->m_seek_requests.front();
 766                 m_cue->m_seek_requests.pop_front();
 767                 int relative = seek.first;
 768                 pts_t pts = seek.second;
 769
 770                 if (relative)
 771                 {
 772                         pts_t now;
 773                         if (!m_cue->m_decoder)
 774                         {
 775                                 eDebug("no decoder - can't seek relative");
 776                                 continue;
 777                         }
 778                         if (m_cue->m_decoder->getPTS(0, now))
 779                         {
 780                                 eDebug("decoder getPTS failed, can't seek relative");
 781                                 continue;
 782                         }
 783                         if (getCurrentPosition(m_cue->m_decoding_demux, now, 1))
 784                         {
 785                                 eDebug("seekTo: getCurrentPosition failed!");
 786                                 continue;
 787                         }
 788                         pts += now;
 789                 }
 790
 791                 if (pts < 0)
 792                         pts = 0;
 793
 794                 off_t offset = 0;
 795                 if (m_tstools.getOffset(offset, pts))
 796                         continue;
 797
 798                 eDebug("ok, resolved skip (rel: %d, diff %lld), now at %08llx", relative, pts, offset);
 799                 current_offset = offset;
 800         }
 801
 802         for (std::list<std::pair<off_t, off_t> >::const_iterator i(m_source_span.begin()); i != m_source_span.end(); ++i)
 803         {
 804                 if ((current_offset >= i->first) && (current_offset < i->second))
 805                 {
 806                         start = current_offset;
 807                         size = i->second - current_offset;
 808                         if (size > max)
 809                                 size = max;
 810                         eDebug("HIT, %lld < %lld < %lld", i->first, current_offset, i->second);
 811                         return;
 812                 }
 813                 if (current_offset < i->first)
 814                 {
 815                                 /* ok, our current offset is in an 'out' zone. */
 816                         if ((m_skipmode_m >= 0) || (i == m_source_span.begin()))
 817                         {
 818                                         /* in normal playback, just start at the next zone. */
 819                                 start = i->first;
 820                                 size = i->second - i->first;
 821                                 if (size > max)
 822                                         size = max;
 823                                 eDebug("skip");
 824                                 if (m_skipmode_m < 0)
 825                                 {
 826                                         eDebug("reached SOF");
 827                                                 /* reached SOF */
 828                                         m_skipmode_m = 0;
 829                                         m_pvr_thread->sendEvent(eFilePushThread::evtUser);
 830                                 }
 831                         } else
 832                         {
 833                                         /* when skipping reverse, however, choose the zone before. */
 834                                 --i;
 835                                 eDebug("skip to previous block, which is %llx..%llx", i->first, i->second);
 836                                 size_t len = i->second - i->first;
 837                                 if (max > len)
 838                                         max = len;
 839                                 start = i->second - max;
 840                                 size = max;
 841                                 eDebug("skipping to %llx, %d", start, size);
 842                         }
 843                         return;
 844                 }
 845         }
 846
 847         if ((current_offset < -m_skipmode_m) && (m_skipmode_m < 0))
 848         {
 849                 eDebug("reached SOF");
 850                 m_skipmode_m = 0;
 851                 m_pvr_thread->sendEvent(eFilePushThread::evtUser);
 852         }
 853
 854         start = current_offset;
 855         size = max;
 856         eDebug("END OF CUESHEET. (%08llx, %d)", start, size);
 857
 858         if (size < 4096)
 859                 eFatal("blub");
 860         return;
 861 }
 862
 863 void eDVBChannel::AddUse()
 864 {
 865         if (++m_use_count > 1 && m_state == state_last_instance)
 866         {
 867                 m_state = state_ok;
 868                 m_stateChanged(this);
 869         }
 870 }
 871
 872 void eDVBChannel::ReleaseUse()
 873 {
 874         if (!--m_use_count)
 875         {
 876                 m_state = state_release;
 877                 m_stateChanged(this);
 878         }
 879         else if (m_use_count == 1)
 880         {
 881                 m_state = state_last_instance;
 882                 m_stateChanged(this);
 883         }
 884 }
 885
 886 RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid, ePtr<iDVBFrontendParameters> &feparm)
 887 {
 888         if (m_channel_id)
 889                 m_mgr->removeChannel(this);
 890
 891         if (!channelid)
 892                 return 0;
 893
 894         if (!m_frontend)
 895         {
 896                 eDebug("no frontend to tune!");
 897                 return -ENODEV;
 898         }
 899
 900         m_channel_id = channelid;
 901         m_mgr->addChannel(channelid, this);
 902         m_state = state_tuning;
 903                         /* if tuning fails, shutdown the channel immediately. */
 904         int res;
 905         res = m_frontend->get().tune(*feparm);
 906         m_feparm = feparm;
 907
 908         if (res)
 909         {
 910                 m_state = state_release;
 911                 m_stateChanged(this);
 912                 return res;
 913         }
 914
 915         return 0;
 916 }
 917
 918 RESULT eDVBChannel::connectStateChange(const Slot1<void,iDVBChannel*> &stateChange, ePtr<eConnection> &connection)
 919 {
 920         connection = new eConnection((iDVBChannel*)this, m_stateChanged.connect(stateChange));
 921         return 0;
 922 }
 923
 924 RESULT eDVBChannel::connectEvent(const Slot2<void,iDVBChannel*,int> &event, ePtr<eConnection> &connection)
 925 {
 926         connection = new eConnection((iDVBChannel*)this, m_event.connect(event));
 927         return 0;
 928 }
 929
 930 RESULT eDVBChannel::getState(int &state)
 931 {
 932         state = m_state;
 933         return 0;
 934 }
 935
 936 RESULT eDVBChannel::setCIRouting(const eDVBCIRouting &routing)
 937 {
 938         return -1;
 939 }
 940
 941 RESULT eDVBChannel::getDemux(ePtr<iDVBDemux> &demux, int cap)
 942 {
 943         ePtr<eDVBAllocatedDemux> &our_demux = (cap & capDecode) ? m_decoder_demux : m_demux;
 944
 945         if (!our_demux)
 946         {
 947                 demux = 0;
 948
 949                 if (m_mgr->allocateDemux(m_frontend ? (eDVBRegisteredFrontend*)*m_frontend : (eDVBRegisteredFrontend*)0, our_demux, cap))
 950                         return -1;
 951         }
 952
 953         demux = *our_demux;
 954                 /* don't hold a reference to the decoding demux, we don't need it. */
 955         if (cap & capDecode)
 956                 our_demux = 0;
 957         return 0;
 958 }
 959
 960 RESULT eDVBChannel::getFrontend(ePtr<iDVBFrontend> &frontend)
 961 {
 962         frontend = &m_frontend->get();
 963         if (frontend)
 964                 return 0;
 965         else
 966                 return -ENODEV;
 967 }
 968
 969 RESULT eDVBChannel::playFile(const char *file)
 970 {
 971         ASSERT(!m_frontend);
 972         if (m_pvr_thread)
 973         {
 974                 m_pvr_thread->stop();
 975                 delete m_pvr_thread;
 976                 m_pvr_thread = 0;
 977         }
 978
 979         m_tstools.openFile(file);
 980
 981                 /* DON'T EVEN THINK ABOUT FIXING THIS. FIX THE ATI SOURCES FIRST,
 982                    THEN DO A REAL FIX HERE! */
 983
 984                 /* (this codepath needs to be improved anyway.) */
 985 #if HAVE_DVB_API_VERSION < 3
 986         m_pvr_fd_dst = open("/dev/pvr", O_WRONLY);
 987 #else
 988         m_pvr_fd_dst = open("/dev/misc/pvr", O_WRONLY);
 989 #endif
 990         if (m_pvr_fd_dst < 0)
 991         {
 992                 eDebug("can't open /dev/misc/pvr - you need to buy the new(!) $$$ box! (%m)"); // or wait for the driver to be improved.
 993                 return -ENODEV;
 994         }
 995
 996         m_pvr_fd_src = open(file, O_RDONLY|O_LARGEFILE);
 997         if (m_pvr_fd_src < 0)
 998         {
 999                 eDebug("can't open PVR m_pvr_fd_src file %s (%m)", file);
1000                 close(m_pvr_fd_dst);
1001                 return -ENOENT;
1002         }
1003
1004         m_state = state_ok;
1005         m_stateChanged(this);
1006
1007         m_pvr_thread = new eFilePushThread();
1008         m_pvr_thread->enablePVRCommit(1);
1009         m_pvr_thread->setScatterGather(this);
1010
1011         m_pvr_thread->start(m_pvr_fd_src, m_pvr_fd_dst);
1012         CONNECT(m_pvr_thread->m_event, eDVBChannel::pvrEvent);
1013
1014         return 0;
1015 }
1016
1017 void eDVBChannel::stopFile()
1018 {
1019         if (m_pvr_thread)
1020         {
1021                 m_pvr_thread->stop();
1022                 ::close(m_pvr_fd_src);
1023                 ::close(m_pvr_fd_dst);
1024                 delete m_pvr_thread;
1025                 m_pvr_thread = 0;
1026         }
1027 }
1028
1029 void eDVBChannel::setCueSheet(eCueSheet *cuesheet)
1030 {
1031         m_conn_cueSheetEvent = 0;
1032         m_cue = cuesheet;
1033         if (m_cue)
1034                 m_cue->connectEvent(slot(*this, &eDVBChannel::cueSheetEvent), m_conn_cueSheetEvent);
1035 }
1036
1037 RESULT eDVBChannel::getLength(pts_t &len)
1038 {
1039         return m_tstools.calcLen(len);
1040 }
1041
1042 RESULT eDVBChannel::getCurrentPosition(iDVBDemux *decoding_demux, pts_t &pos, int mode)
1043 {
1044         if (!decoding_demux)
1045                 return -1;
1046
1047         pts_t now;
1048
1049         int r;
1050
1051         if (mode == 0) /* demux */
1052         {
1053                 r = decoding_demux->getSTC(now, 0);
1054                 if (r)
1055                 {
1056                         eDebug("demux getSTC failed");
1057                         return -1;
1058                 }
1059         } else
1060                 now = pos; /* fixup supplied */
1061
1062         off_t off = 0; /* TODO: fixme */
1063         r = m_tstools.fixupPTS(off, now);
1064         if (r)
1065         {
1066                 eDebug("fixup PTS failed");
1067                 return -1;
1068         }
1069
1070         pos = now;
1071
1072         return 0;
1073 }
1074
1075 void eDVBChannel::flushPVR(iDVBDemux *decoding_demux)
1076 {
1077                         /* when seeking, we have to ensure that all buffers are flushed.
1078                            there are basically 3 buffers:
1079                            a.) the filepush's internal buffer
1080                            b.) the PVR buffer (before demux)
1081                            c.) the ratebuffer (after demux)
1082
1083                            it's important to clear them in the correct order, otherwise
1084                            the ratebuffer (for example) would immediately refill from
1085                            the not-yet-flushed PVR buffer.
1086                         */
1087
1088         m_pvr_thread->pause();
1089                 /* flush internal filepush buffer */
1090         m_pvr_thread->flush();
1091                 /* HACK: flush PVR buffer */
1092         ::ioctl(m_pvr_fd_dst, 0);
1093
1094                 /* flush ratebuffers (video, audio) */
1095         if (decoding_demux)
1096                 decoding_demux->flush();
1097
1098                 /* demux will also flush all decoder.. */
1099                 /* resume will re-query the SG */
1100         m_pvr_thread->resume();
1101 }
1102
1103 DEFINE_REF(eCueSheet);
1104
1105 eCueSheet::eCueSheet()
1106 {
1107         m_skipmode_ratio = 0;
1108 }
1109
1110 void eCueSheet::seekTo(int relative, const pts_t &pts)
1111 {
1112         {
1113                 eSingleLock l(m_lock);
1114                 m_seek_requests.push_back(std::pair<int, pts_t>(relative, pts));
1115         }
1116         m_event(evtSeek);
1117 }
1118
1119 void eCueSheet::clear()
1120 {
1121         eSingleLock l(m_lock);
1122         m_spans.clear();
1123 }
1124
1125 void eCueSheet::addSourceSpan(const pts_t &begin, const pts_t &end)
1126 {
1127         {
1128                 eSingleLock l(m_lock);
1129                 m_spans.push_back(std::pair<pts_t, pts_t>(begin, end));
1130         }
1131 }
1132
1133 void eCueSheet::commitSpans()
1134 {
1135         m_event(evtSpanChanged);
1136 }
1137
1138 void eCueSheet::setSkipmode(const pts_t &ratio)
1139 {
1140         {
1141                 eSingleLock l(m_lock);
1142                 m_skipmode_ratio = ratio;
1143         }
1144         m_event(evtSkipmode);
1145 }
1146
1147 void eCueSheet::setDecodingDemux(iDVBDemux *demux, iTSMPEGDecoder *decoder)
1148 {
1149         m_decoding_demux = demux;
1150         m_decoder = decoder;
1151 }
1152
1153 RESULT eCueSheet::connectEvent(const Slot1<void,int> &event, ePtr<eConnection> &connection)
1154 {
1155         connection = new eConnection(this, m_event.connect(event));
1156         return 0;
1157 }