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/pmt.h>
   6 #include <lib/dvb/sec.h>
   7
   8 #include <errno.h>
   9 #include <sys/types.h>
  10 #include <sys/stat.h>
  11 #include <unistd.h>
  12 #include <fcntl.h>
  13 #include <sys/ioctl.h>
  14
  15 DEFINE_REF(eDVBRegisteredFrontend);
  16 DEFINE_REF(eDVBRegisteredDemux);
  17
  18 DEFINE_REF(eDVBAllocatedFrontend);
  19
  20 eDVBAllocatedFrontend::eDVBAllocatedFrontend(eDVBRegisteredFrontend *fe): m_fe(fe)
  21 {
  22         m_fe->inc_use();
  23 }
  24
  25 eDVBAllocatedFrontend::~eDVBAllocatedFrontend()
  26 {
  27         m_fe->dec_use();
  28 }
  29
  30 DEFINE_REF(eDVBAllocatedDemux);
  31
  32 eDVBAllocatedDemux::eDVBAllocatedDemux(eDVBRegisteredDemux *demux): m_demux(demux)
  33 {
  34         m_demux->m_inuse++;
  35 }
  36
  37 eDVBAllocatedDemux::~eDVBAllocatedDemux()
  38 {
  39         --m_demux->m_inuse;
  40 }
  41
  42 DEFINE_REF(eDVBResourceManager);
  43
  44 eDVBResourceManager *eDVBResourceManager::instance;
  45
  46 RESULT eDVBResourceManager::getInstance(ePtr<eDVBResourceManager> &ptr)
  47 {
  48         if (instance)
  49         {
  50                 ptr = instance;
  51                 return 0;
  52         }
  53         return -1;
  54 }
  55
  56 ePtr<eDVBResourceManager> NewResourceManagerPtr(void)
  57 {
  58         ePtr<eDVBResourceManager> ptr;
  59         eDVBResourceManager::getInstance(ptr);
  60         return ptr;
  61 }
  62
  63 eDVBResourceManager::eDVBResourceManager()
  64         :m_releaseCachedChannelTimer(eTimer::create(eApp))
  65 {
  66         avail = 1;
  67         busy = 0;
  68         m_sec = new eDVBSatelliteEquipmentControl(m_frontend, m_simulate_frontend);
  69
  70         if (!instance)
  71                 instance = this;
  72
  73                 /* search available adapters... */
  74
  75                 // add linux devices
  76
  77         int num_adapter = 0;
  78         while (eDVBAdapterLinux::exist(num_adapter))
  79         {
  80                 addAdapter(new eDVBAdapterLinux(num_adapter));
  81                 num_adapter++;
  82         }
  83
  84         eDebug("found %d adapter, %d frontends(%d sim) and %d demux",
  85                 m_adapter.size(), m_frontend.size(), m_simulate_frontend.size(), m_demux.size());
  86
  87         eDVBCAService::registerChannelCallback(this);
  88
  89         CONNECT(m_releaseCachedChannelTimer->timeout, eDVBResourceManager::releaseCachedChannel);
  90 }
  91
  92 void eDVBResourceManager::feStateChanged()
  93 {
  94         int mask=0;
  95         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
  96                 if (i->m_inuse)
  97                         mask |= ( 1 << i->m_frontend->getSlotID() );
  98         /* emit */ frontendUseMaskChanged(mask);
  99 }
 100
 101 DEFINE_REF(eDVBAdapterLinux);
 102 eDVBAdapterLinux::eDVBAdapterLinux(int nr): m_nr(nr)
 103 {
 104                 // scan frontends
 105         int num_fe = 0;
 106
 107         eDebug("scanning for frontends..");
 108         while (1)
 109         {
 110                 struct stat s;
 111                 char filename[128];
 112 #if HAVE_DVB_API_VERSION < 3
 113                 sprintf(filename, "/dev/dvb/card%d/frontend%d", m_nr, num_fe);
 114 #else
 115                 sprintf(filename, "/dev/dvb/adapter%d/frontend%d", m_nr, num_fe);
 116 #endif
 117                 if (stat(filename, &s))
 118                         break;
 119                 ePtr<eDVBFrontend> fe;
 120
 121                 {
 122                         int ok = 0;
 123                         fe = new eDVBFrontend(m_nr, num_fe, ok);
 124                         if (ok)
 125                                 m_frontend.push_back(fe);
 126                 }
 127                 {
 128                         int ok = 0;
 129                         fe = new eDVBFrontend(m_nr, num_fe, ok, true);
 130                         if (ok)
 131                                 m_simulate_frontend.push_back(fe);
 132                 }
 133                 ++num_fe;
 134         }
 135
 136                 // scan demux
 137         int num_demux = 0;
 138         while (1)
 139         {
 140                 struct stat s;
 141                 char filename[128];
 142 #if HAVE_DVB_API_VERSION < 3
 143                 sprintf(filename, "/dev/dvb/card%d/demux%d", m_nr, num_demux);
 144 #else
 145                 sprintf(filename, "/dev/dvb/adapter%d/demux%d", m_nr, num_demux);
 146 #endif
 147                 if (stat(filename, &s))
 148                         break;
 149                 ePtr<eDVBDemux> demux;
 150
 151                 demux = new eDVBDemux(m_nr, num_demux);
 152                 m_demux.push_back(demux);
 153
 154                 ++num_demux;
 155         }
 156 }
 157
 158 int eDVBAdapterLinux::getNumDemux()
 159 {
 160         return m_demux.size();
 161 }
 162
 163 RESULT eDVBAdapterLinux::getDemux(ePtr<eDVBDemux> &demux, int nr)
 164 {
 165         eSmartPtrList<eDVBDemux>::iterator i(m_demux.begin());
 166         while (nr && (i != m_demux.end()))
 167         {
 168                 --nr;
 169                 ++i;
 170         }
 171
 172         if (i != m_demux.end())
 173                 demux = *i;
 174         else
 175                 return -1;
 176
 177         return 0;
 178 }
 179
 180 int eDVBAdapterLinux::getNumFrontends()
 181 {
 182         return m_frontend.size();
 183 }
 184
 185 RESULT eDVBAdapterLinux::getFrontend(ePtr<eDVBFrontend> &fe, int nr, bool simulate)
 186 {
 187         eSmartPtrList<eDVBFrontend>::iterator i(simulate ? m_simulate_frontend.begin() : m_frontend.begin());
 188         while (nr && (i != m_frontend.end()))
 189         {
 190                 --nr;
 191                 ++i;
 192         }
 193
 194         if (i != m_frontend.end())
 195                 fe = *i;
 196         else
 197                 return -1;
 198
 199         return 0;
 200 }
 201
 202 int eDVBAdapterLinux::exist(int nr)
 203 {
 204         struct stat s;
 205         char filename[128];
 206 #if HAVE_DVB_API_VERSION < 3
 207         sprintf(filename, "/dev/dvb/card%d", nr);
 208 #else
 209         sprintf(filename, "/dev/dvb/adapter%d", nr);
 210 #endif
 211         if (!stat(filename, &s))
 212                 return 1;
 213         return 0;
 214 }
 215
 216 eDVBResourceManager::~eDVBResourceManager()
 217 {
 218         if (instance == this)
 219                 instance = 0;
 220 }
 221
 222 void eDVBResourceManager::addAdapter(iDVBAdapter *adapter)
 223 {
 224         int num_fe = adapter->getNumFrontends();
 225         int num_demux = adapter->getNumDemux();
 226
 227         m_adapter.push_back(adapter);
 228
 229         int i;
 230         for (i=0; i<num_demux; ++i)
 231         {
 232                 ePtr<eDVBDemux> demux;
 233                 if (!adapter->getDemux(demux, i))
 234                         m_demux.push_back(new eDVBRegisteredDemux(demux, adapter));
 235         }
 236
 237         ePtr<eDVBRegisteredFrontend> prev_dvbt_frontend;
 238         for (i=0; i<num_fe; ++i)
 239         {
 240                 ePtr<eDVBFrontend> frontend;
 241                 if (!adapter->getFrontend(frontend, i))
 242                 {
 243                         int frontendType=0;
 244                         frontend->getFrontendType(frontendType);
 245                         eDVBRegisteredFrontend *new_fe = new eDVBRegisteredFrontend(frontend, adapter);
 246                         CONNECT(new_fe->stateChanged, eDVBResourceManager::feStateChanged);
 247                         m_frontend.push_back(new_fe);
 248                         frontend->setSEC(m_sec);
 249                         // we must link all dvb-t frontends ( for active antenna voltage )
 250                         if (frontendType == iDVBFrontend::feTerrestrial)
 251                         {
 252                                 if (prev_dvbt_frontend)
 253                                 {
 254                                         prev_dvbt_frontend->m_frontend->setData(eDVBFrontend::LINKED_NEXT_PTR, (long)new_fe);
 255                                         frontend->setData(eDVBFrontend::LINKED_PREV_PTR, (long)&(*prev_dvbt_frontend));
 256                                 }
 257                                 prev_dvbt_frontend = new_fe;
 258                         }
 259                 }
 260         }
 261
 262         prev_dvbt_frontend = 0;
 263         for (i=0; i<num_fe; ++i)
 264         {
 265                 ePtr<eDVBFrontend> frontend;
 266                 if (!adapter->getFrontend(frontend, i, true))
 267                 {
 268                         int frontendType=0;
 269                         frontend->getFrontendType(frontendType);
 270                         eDVBRegisteredFrontend *new_fe = new eDVBRegisteredFrontend(frontend, adapter);
 271 //                      CONNECT(new_fe->stateChanged, eDVBResourceManager::feStateChanged);
 272                         m_simulate_frontend.push_back(new_fe);
 273                         frontend->setSEC(m_sec);
 274                         // we must link all dvb-t frontends ( for active antenna voltage )
 275                         if (frontendType == iDVBFrontend::feTerrestrial)
 276                         {
 277                                 if (prev_dvbt_frontend)
 278                                 {
 279                                         prev_dvbt_frontend->m_frontend->setData(eDVBFrontend::LINKED_NEXT_PTR, (long)new_fe);
 280                                         frontend->setData(eDVBFrontend::LINKED_PREV_PTR, (long)&(*prev_dvbt_frontend));
 281                                 }
 282                                 prev_dvbt_frontend = new_fe;
 283                         }
 284                 }
 285         }
 286
 287 }
 288
 289 PyObject *eDVBResourceManager::setFrontendSlotInformations(ePyObject list)
 290 {
 291         if (!PyList_Check(list))
 292         {
 293                 PyErr_SetString(PyExc_StandardError, "eDVBResourceManager::setFrontendSlotInformations argument should be a python list");
 294                 return NULL;
 295         }
 296         if ((unsigned int)PyList_Size(list) != m_frontend.size())
 297         {
 298                 char blasel[256];
 299                 sprintf(blasel, "eDVBResourceManager::setFrontendSlotInformations list size incorrect %d frontends avail, but %d entries in slotlist",
 300                         m_frontend.size(), PyList_Size(list));
 301                 PyErr_SetString(PyExc_StandardError, blasel);
 302                 return NULL;
 303         }
 304         int pos=0;
 305         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
 306         {
 307                 ePyObject obj = PyList_GET_ITEM(list, pos++);
 308                 if (!i->m_frontend->setSlotInfo(obj))
 309                         return NULL;
 310         }
 311         pos=0;
 312         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_simulate_frontend.begin()); i != m_simulate_frontend.end(); ++i)
 313         {
 314                 ePyObject obj = PyList_GET_ITEM(list, pos++);
 315                 if (!i->m_frontend->setSlotInfo(obj))
 316                         return NULL;
 317         }
 318         Py_RETURN_NONE;
 319 }
 320
 321 RESULT eDVBResourceManager::allocateFrontend(ePtr<eDVBAllocatedFrontend> &fe, ePtr<iDVBFrontendParameters> &feparm, bool simulate)
 322 {
 323         eSmartPtrList<eDVBRegisteredFrontend> &frontends = simulate ? m_simulate_frontend : m_frontend;
 324         ePtr<eDVBRegisteredFrontend> best;
 325         int bestval = 0;
 326         int foundone = 0;
 327
 328         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(frontends.begin()); i != frontends.end(); ++i)
 329         {
 330                 int c = i->m_frontend->isCompatibleWith(feparm);
 331
 332                 if (c)  /* if we have at least one frontend which is compatible with the source, flag this. */
 333                         foundone = 1;
 334
 335                 if (!i->m_inuse)
 336                 {
 337 //                      eDebug("Slot %d, score %d", i->m_frontend->getSlotID(), c);
 338                         if (c > bestval)
 339                         {
 340                                 bestval = c;
 341                                 best = i;
 342                         }
 343                 }
 344 //              else
 345 //                      eDebug("Slot %d, score %d... but BUSY!!!!!!!!!!!", i->m_frontend->getSlotID(), c);
 346         }
 347
 348         if (best)
 349         {
 350                 fe = new eDVBAllocatedFrontend(best);
 351                 return 0;
 352         }
 353
 354         fe = 0;
 355
 356         if (foundone)
 357                 return errAllSourcesBusy;
 358         else
 359                 return errNoSourceFound;
 360 }
 361
 362 RESULT eDVBResourceManager::allocateFrontendByIndex(ePtr<eDVBAllocatedFrontend> &fe, int slot_index)
 363 {
 364         int err = errNoSourceFound;
 365         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
 366                 if (!i->m_inuse && i->m_frontend->getSlotID() == slot_index)
 367                 {
 368                         // check if another slot linked to this is in use
 369                         long tmp;
 370                         i->m_frontend->getData(eDVBFrontend::SATPOS_DEPENDS_PTR, tmp);
 371                         if ( tmp != -1 )
 372                         {
 373                                 eDVBRegisteredFrontend *satpos_depends_to_fe = (eDVBRegisteredFrontend *)tmp;
 374                                 if (satpos_depends_to_fe->m_inuse)
 375                                 {
 376                                         eDebug("another satpos depending frontend is in use.. so allocateFrontendByIndex not possible!");
 377                                         err = errAllSourcesBusy;
 378                                         goto alloc_fe_by_id_not_possible;
 379                                 }
 380                         }
 381                         else // check linked tuners
 382                         {
 383                                 i->m_frontend->getData(eDVBFrontend::LINKED_NEXT_PTR, tmp);
 384                                 while ( tmp != -1 )
 385                                 {
 386                                         eDVBRegisteredFrontend *next = (eDVBRegisteredFrontend *) tmp;
 387                                         if (next->m_inuse)
 388                                         {
 389                                                 eDebug("another linked frontend is in use.. so allocateFrontendByIndex not possible!");
 390                                                 err = errAllSourcesBusy;
 391                                                 goto alloc_fe_by_id_not_possible;
 392                                         }
 393                                         next->m_frontend->getData(eDVBFrontend::LINKED_NEXT_PTR, tmp);
 394                                 }
 395                                 i->m_frontend->getData(eDVBFrontend::LINKED_PREV_PTR, tmp);
 396                                 while ( tmp != -1 )
 397                                 {
 398                                         eDVBRegisteredFrontend *prev = (eDVBRegisteredFrontend *) tmp;
 399                                         if (prev->m_inuse)
 400                                         {
 401                                                 eDebug("another linked frontend is in use.. so allocateFrontendByIndex not possible!");
 402                                                 err = errAllSourcesBusy;
 403                                                 goto alloc_fe_by_id_not_possible;
 404                                         }
 405                                         prev->m_frontend->getData(eDVBFrontend::LINKED_PREV_PTR, tmp);
 406                                 }
 407                         }
 408                         fe = new eDVBAllocatedFrontend(i);
 409                         return 0;
 410                 }
 411 alloc_fe_by_id_not_possible:
 412         fe = 0;
 413         return err;
 414 }
 415
 416 RESULT eDVBResourceManager::allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBAllocatedDemux> &demux, int cap)
 417 {
 418                 /* find first unused demux which is on same adapter as frontend (or any, if PVR)
 419                    never use the first one unless we need a decoding demux. */
 420
 421         eDebug("allocate demux");
 422         eSmartPtrList<eDVBRegisteredDemux>::iterator i(m_demux.begin());
 423
 424         int n=0;
 425
 426         if (i == m_demux.end())
 427                 return -1;
 428
 429         ePtr<eDVBRegisteredDemux> unused;
 430
 431         if (m_demux.size() < 5)
 432         {
 433                 /* FIXME: hardware demux policy */
 434                 if (!(cap & iDVBChannel::capDecode))
 435                 {
 436                         if (m_demux.size() > 2)  /* assumed to be true, otherwise we have lost anyway */
 437                         {
 438                                 ++i, ++n;
 439                                 ++i, ++n;
 440                         }
 441                 }
 442
 443                 for (; i != m_demux.end(); ++i, ++n)
 444                 {
 445                         int is_decode = n < 2;
 446
 447                         int in_use = is_decode ? (i->m_demux->getRefCount() != 2) : i->m_inuse;
 448
 449                         if ((!in_use) && ((!fe) || (i->m_adapter == fe->m_adapter)))
 450                         {
 451                                 if ((cap & iDVBChannel::capDecode) && !is_decode)
 452                                         continue;
 453                                 unused = i;
 454                                 break;
 455                         }
 456                 }
 457         }
 458         else // we asume dm8000
 459         {
 460                 for (; i != m_demux.end(); ++i, ++n)
 461                 {
 462                         if (fe)
 463                         {
 464                                 if (!i->m_inuse)
 465                                 {
 466                                         if (!unused)
 467                                                 unused = i;
 468                                 }
 469                                 else if (i->m_adapter == fe->m_adapter &&
 470                                     i->m_demux->getSource() == fe->m_frontend->getDVBID())
 471                                 {
 472                                         demux = new eDVBAllocatedDemux(i);
 473                                         return 0;
 474                                 }
 475                         }
 476                         else if (n == 4) // always use demux4 for PVR (demux 4 can not descramble...)
 477                         {
 478                                 if (i->m_inuse) {
 479                                         demux = new eDVBAllocatedDemux(i);
 480                                         return 0;
 481                                 }
 482                                 unused = i;
 483                         }
 484                 }
 485         }
 486
 487         if (unused)
 488         {
 489                 demux = new eDVBAllocatedDemux(unused);
 490                 if (fe)
 491                         demux->get().setSourceFrontend(fe->m_frontend->getDVBID());
 492                 else
 493                         demux->get().setSourcePVR(0);
 494                 return 0;
 495         }
 496
 497         eDebug("demux not found");
 498         return -1;
 499 }
 500
 501 RESULT eDVBResourceManager::setChannelList(iDVBChannelList *list)
 502 {
 503         m_list = list;
 504         return 0;
 505 }
 506
 507 RESULT eDVBResourceManager::getChannelList(ePtr<iDVBChannelList> &list)
 508 {
 509         list = m_list;
 510         if (list)
 511                 return 0;
 512         else
 513                 return -ENOENT;
 514 }
 515
 516 #define eDebugNoSimulate(x...) \
 517         do { \
 518                 if (!simulate) \
 519                         eDebug(x); \
 520         } while(0)
 521 //              else \
 522 //              { \
 523 //                      eDebugNoNewLine("SIMULATE:"); \
 524 //                      eDebug(x); \
 525 //              } \
 526
 527
 528 RESULT eDVBResourceManager::allocateChannel(const eDVBChannelID &channelid, eUsePtr<iDVBChannel> &channel, bool simulate)
 529 {
 530                 /* first, check if a channel is already existing. */
 531         std::list<active_channel> &active_channels = simulate ? m_active_simulate_channels : m_active_channels;
 532
 533         if (!simulate && m_cached_channel)
 534         {
 535                 eDVBChannel *cache_chan = (eDVBChannel*)&(*m_cached_channel);
 536                 if(channelid==cache_chan->getChannelID())
 537                 {
 538                         eDebug("use cached_channel");
 539                         channel = m_cached_channel;
 540                         return 0;
 541                 }
 542                 m_cached_channel_state_changed_conn.disconnect();
 543                 m_cached_channel=0;
 544                 m_releaseCachedChannelTimer->stop();
 545         }
 546
 547         eDebugNoSimulate("allocate channel.. %04x:%04x", channelid.transport_stream_id.get(), channelid.original_network_id.get());
 548         for (std::list<active_channel>::iterator i(active_channels.begin()); i != active_channels.end(); ++i)
 549         {
 550                 eDebugNoSimulate("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
 551                 if (i->m_channel_id == channelid)
 552                 {
 553                         eDebugNoSimulate("found shared channel..");
 554                         channel = i->m_channel;
 555                         return 0;
 556                 }
 557         }
 558
 559         /* no currently available channel is tuned to this channelid. create a new one, if possible. */
 560
 561         if (!m_list)
 562         {
 563                 eDebugNoSimulate("no channel list set!");
 564                 return errNoChannelList;
 565         }
 566
 567         ePtr<iDVBFrontendParameters> feparm;
 568         if (m_list->getChannelFrontendData(channelid, feparm))
 569         {
 570                 eDebugNoSimulate("channel not found!");
 571                 return errChannelNotInList;
 572         }
 573
 574         /* allocate a frontend. */
 575
 576         ePtr<eDVBAllocatedFrontend> fe;
 577
 578         int err = allocateFrontend(fe, feparm, simulate);
 579         if (err)
 580                 return err;
 581
 582         RESULT res;
 583         ePtr<eDVBChannel> ch = new eDVBChannel(this, fe);
 584
 585         res = ch->setChannel(channelid, feparm);
 586         if (res)
 587         {
 588                 channel = 0;
 589                 return errChidNotFound;
 590         }
 591
 592         if (simulate)
 593                 channel = ch;
 594         else
 595         {
 596                 m_cached_channel = channel = ch;
 597                 m_cached_channel_state_changed_conn =
 598                         CONNECT(ch->m_stateChanged,eDVBResourceManager::DVBChannelStateChanged);
 599         }
 600
 601         return 0;
 602 }
 603
 604 void eDVBResourceManager::DVBChannelStateChanged(iDVBChannel *chan)
 605 {
 606         int state=0;
 607         chan->getState(state);
 608         switch (state)
 609         {
 610                 case iDVBChannel::state_release:
 611                 case iDVBChannel::state_ok:
 612                 {
 613                         eDebug("stop release channel timer");
 614                         m_releaseCachedChannelTimer->stop();
 615                         break;
 616                 }
 617                 case iDVBChannel::state_last_instance:
 618                 {
 619                         eDebug("start release channel timer");
 620                         m_releaseCachedChannelTimer->start(3000, true);
 621                         break;
 622                 }
 623                 default: // ignore all other events
 624                         break;
 625         }
 626 }
 627
 628 void eDVBResourceManager::releaseCachedChannel()
 629 {
 630         eDebug("release cached channel (timer timeout)");
 631         m_cached_channel=0;
 632 }
 633
 634 RESULT eDVBResourceManager::allocateRawChannel(eUsePtr<iDVBChannel> &channel, int slot_index)
 635 {
 636         ePtr<eDVBAllocatedFrontend> fe;
 637
 638         if (m_cached_channel)
 639         {
 640                 m_cached_channel_state_changed_conn.disconnect();
 641                 m_cached_channel=0;
 642                 m_releaseCachedChannelTimer->stop();
 643         }
 644
 645         int err = allocateFrontendByIndex(fe, slot_index);
 646         if (err)
 647                 return err;
 648
 649         channel = new eDVBChannel(this, fe);
 650         return 0;
 651 }
 652
 653
 654 RESULT eDVBResourceManager::allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel)
 655 {
 656         ePtr<eDVBAllocatedDemux> demux;
 657
 658         if (m_cached_channel && m_releaseCachedChannelTimer->isActive())
 659         {
 660                 m_cached_channel_state_changed_conn.disconnect();
 661                 m_cached_channel=0;
 662                 m_releaseCachedChannelTimer->stop();
 663         }
 664
 665         channel = new eDVBChannel(this, 0);
 666         return 0;
 667 }
 668
 669 RESULT eDVBResourceManager::addChannel(const eDVBChannelID &chid, eDVBChannel *ch)
 670 {
 671         ePtr<iDVBFrontend> fe;
 672         if (!ch->getFrontend(fe))
 673         {
 674                 eDVBFrontend *frontend = (eDVBFrontend*)&(*fe);
 675                 if (frontend->is_simulate())
 676                         m_active_simulate_channels.push_back(active_channel(chid, ch));
 677                 else
 678                 {
 679                         m_active_channels.push_back(active_channel(chid, ch));
 680                         /* emit */ m_channelAdded(ch);
 681                 }
 682         }
 683         return 0;
 684 }
 685
 686 RESULT eDVBResourceManager::removeChannel(eDVBChannel *ch)
 687 {
 688         ePtr<iDVBFrontend> fe;
 689         if (!ch->getFrontend(fe))
 690         {
 691                 eDVBFrontend *frontend = (eDVBFrontend*)&(*fe);
 692                 std::list<active_channel> &active_channels = frontend->is_simulate() ? m_active_simulate_channels : m_active_channels;
 693                 int cnt = 0;
 694                 for (std::list<active_channel>::iterator i(active_channels.begin()); i != active_channels.end();)
 695                 {
 696                         if (i->m_channel == ch)
 697                         {
 698                                 i = active_channels.erase(i);
 699                                 ++cnt;
 700                         } else
 701                                 ++i;
 702                 }
 703                 ASSERT(cnt == 1);
 704                 if (cnt == 1)
 705                         return 0;
 706         }
 707         return -ENOENT;
 708 }
 709
 710 RESULT eDVBResourceManager::connectChannelAdded(const Slot1<void,eDVBChannel*> &channelAdded, ePtr<eConnection> &connection)
 711 {
 712         connection = new eConnection((eDVBResourceManager*)this, m_channelAdded.connect(channelAdded));
 713         return 0;
 714 }
 715
 716 int eDVBResourceManager::canAllocateFrontend(ePtr<iDVBFrontendParameters> &feparm)
 717 {
 718         ePtr<eDVBRegisteredFrontend> best;
 719         int bestval = 0;
 720
 721         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
 722                 if (!i->m_inuse)
 723                 {
 724                         int c = i->m_frontend->isCompatibleWith(feparm);
 725                         if (c > bestval)
 726                                 bestval = c;
 727                 }
 728         return bestval;
 729 }
 730
 731 int tuner_type_channel_default(ePtr<iDVBChannelList> &channellist, const eDVBChannelID &chid)
 732 {
 733         if (channellist)
 734         {
 735                 ePtr<iDVBFrontendParameters> feparm;
 736                 if (!channellist->getChannelFrontendData(chid, feparm))
 737                 {
 738                         int system;
 739                         if (!feparm->getSystem(system))
 740                         {
 741                                 switch(system)
 742                                 {
 743                                         case iDVBFrontend::feSatellite:
 744                                                 return 50000;
 745                                         case iDVBFrontend::feCable:
 746                                                 return 40000;
 747                                         case iDVBFrontend::feTerrestrial:
 748                                                 return 30000;
 749                                         default:
 750                                                 break;
 751                                 }
 752                         }
 753                 }
 754         }
 755         return 0;
 756 }
 757
 758 int eDVBResourceManager::canAllocateChannel(const eDVBChannelID &channelid, const eDVBChannelID& ignore)
 759 {
 760         int ret=0;
 761         if (m_cached_channel)
 762         {
 763                 eDVBChannel *cache_chan = (eDVBChannel*)&(*m_cached_channel);
 764                 if(channelid==cache_chan->getChannelID())
 765                         return tuner_type_channel_default(m_list, channelid);
 766         }
 767
 768                 /* first, check if a channel is already existing. */
 769 //      eDebug("allocate channel.. %04x:%04x", channelid.transport_stream_id.get(), channelid.original_network_id.get());
 770         for (std::list<active_channel>::iterator i(m_active_channels.begin()); i != m_active_channels.end(); ++i)
 771         {
 772 //              eDebug("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
 773                 if (i->m_channel_id == channelid)
 774                 {
 775 //                      eDebug("found shared channel..");
 776                         return tuner_type_channel_default(m_list, channelid);
 777                 }
 778         }
 779
 780         int *decremented_cached_channel_fe_usecount=NULL,
 781                 *decremented_fe_usecount=NULL;
 782
 783         for (std::list<active_channel>::iterator i(m_active_channels.begin()); i != m_active_channels.end(); ++i)
 784         {
 785 //              eDebug("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
 786                 if (i->m_channel_id == ignore)
 787                 {
 788                         eDVBChannel *channel = (eDVBChannel*) &(*i->m_channel);
 789                         // one eUsePtr<iDVBChannel> is used in eDVBServicePMTHandler
 790                         // another on eUsePtr<iDVBChannel> is used in the eDVBScan instance used in eDVBServicePMTHandler (for SDT scan)
 791                         // so we must check here if usecount is 3 (when the channel is equal to the cached channel)
 792                         // or 2 when the cached channel is not equal to the compared channel
 793                         if (channel == &(*m_cached_channel) ? channel->getUseCount() == 3 : channel->getUseCount() == 2)  // channel only used once..
 794                         {
 795                                 ePtr<iDVBFrontend> fe;
 796                                 if (!i->m_channel->getFrontend(fe))
 797                                 {
 798                                         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator ii(m_frontend.begin()); ii != m_frontend.end(); ++ii)
 799                                         {
 800                                                 if ( &(*fe) == &(*ii->m_frontend) )
 801                                                 {
 802                                                         --ii->m_inuse;
 803                                                         decremented_fe_usecount = &ii->m_inuse;
 804                                                         if (channel == &(*m_cached_channel))
 805                                                                 decremented_cached_channel_fe_usecount = decremented_fe_usecount;
 806                                                         break;
 807                                                 }
 808                                         }
 809                                 }
 810                         }
 811                         break;
 812                 }
 813         }
 814
 815         if (!decremented_cached_channel_fe_usecount)
 816         {
 817                 if (m_cached_channel)
 818                 {
 819                         eDVBChannel *channel = (eDVBChannel*) &(*m_cached_channel);
 820                         if (channel->getUseCount() == 1)
 821                         {
 822                                 ePtr<iDVBFrontend> fe;
 823                                 if (!channel->getFrontend(fe))
 824                                 {
 825                                         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator ii(m_frontend.begin()); ii != m_frontend.end(); ++ii)
 826                                         {
 827                                                 if ( &(*fe) == &(*ii->m_frontend) )
 828                                                 {
 829                                                         --ii->m_inuse;
 830                                                         decremented_cached_channel_fe_usecount = &ii->m_inuse;
 831                                                         break;
 832                                                 }
 833                                         }
 834                                 }
 835                         }
 836                 }
 837         }
 838         else
 839                 decremented_cached_channel_fe_usecount=NULL;
 840
 841         ePtr<iDVBFrontendParameters> feparm;
 842
 843         if (!m_list)
 844         {
 845                 eDebug("no channel list set!");
 846                 goto error;
 847         }
 848
 849         if (m_list->getChannelFrontendData(channelid, feparm))
 850         {
 851                 eDebug("channel not found!");
 852                 goto error;
 853         }
 854
 855         ret = canAllocateFrontend(feparm);
 856
 857 error:
 858         if (decremented_fe_usecount)
 859                 ++(*decremented_fe_usecount);
 860         if (decremented_cached_channel_fe_usecount)
 861                 ++(*decremented_cached_channel_fe_usecount);
 862
 863         return ret;
 864 }
 865
 866 bool eDVBResourceManager::canMeasureFrontendInputPower()
 867 {
 868         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
 869         {
 870                 return i->m_frontend->readInputpower() >= 0;
 871         }
 872         return false;
 873 }
 874
 875 class eDVBChannelFilePush: public eFilePushThread
 876 {
 877 public:
 878         eDVBChannelFilePush() { setIFrameSearch(0); setTimebaseChange(0); }
 879         void setIFrameSearch(int enabled) { m_iframe_search = enabled; m_iframe_state = 0; }
 880
 881                         /* "timebase change" is for doing trickmode playback at an exact speed, even when pictures are skipped. */
 882                         /* you need to set it to 1/16 if you want 16x playback, for example. you need video master sync. */
 883         void setTimebaseChange(int ratio) { m_timebase_change = ratio; } /* 16bit fixpoint, 0 for disable */
 884 protected:
 885         int m_iframe_search, m_iframe_state, m_pid;
 886         int m_timebase_change;
 887         int filterRecordData(const unsigned char *data, int len, size_t &current_span_remaining);
 888 };
 889
 890 int eDVBChannelFilePush::filterRecordData(const unsigned char *_data, int len, size_t &current_span_remaining)
 891 {
 892 #if 0
 893         if (m_timebase_change)
 894         {
 895                 eDebug("timebase change: %d", m_timebase_change);
 896                 int offset;
 897                 for (offset = 0; offset < len; offset += 188)
 898                 {
 899                         unsigned char *pkt = (unsigned char*)_data + offset;
 900                         if (pkt[1] & 0x40) /* pusi */
 901                         {
 902                                 if (pkt[3] & 0x20) // adaption field present?
 903                                         pkt += pkt[4] + 4 + 1;  /* skip adaption field and header */
 904                                 else
 905                                         pkt += 4; /* skip header */
 906                                 if (pkt[0] || pkt[1] || (pkt[2] != 1))
 907                                 {
 908                                         eWarning("broken startcode");
 909                                         continue;
 910                                 }
 911
 912                                 pts_t pts = 0;
 913
 914                                 if (pkt[7] & 0x80) // PTS present?
 915                                 {
 916                                         pts  = ((unsigned long long)(pkt[ 9]&0xE))  << 29;
 917                                         pts |= ((unsigned long long)(pkt[10]&0xFF)) << 22;
 918                                         pts |= ((unsigned long long)(pkt[11]&0xFE)) << 14;
 919                                         pts |= ((unsigned long long)(pkt[12]&0xFF)) << 7;
 920                                         pts |= ((unsigned long long)(pkt[13]&0xFE)) >> 1;
 921
 922 #if 0
 923                                         off_t off = 0;
 924                                         RESULT r = m_tstools.fixupPTS(off, pts);
 925                                         if (r)
 926                                                 eWarning("fixup PTS while trickmode playback failed.\n");
 927 #endif
 928
 929                                         int sec = pts / 90000;
 930                                         int frm = pts % 90000;
 931                                         int min = sec / 60;
 932                                         sec %= 60;
 933                                         int hr = min / 60;
 934                                         min %= 60;
 935                                         int d = hr / 24;
 936                                         hr %= 24;
 937
 938 //                                      eDebug("original, fixed pts: %016llx %d:%02d:%02d:%02d:%05d", pts, d, hr, min, sec, frm);
 939
 940                                         pts += 0x80000000LL;
 941                                         pts *= m_timebase_change;
 942                                         pts >>= 16;
 943
 944                                         sec = pts / 90000;
 945                                         frm = pts % 90000;
 946                                         min = sec / 60;
 947                                         sec %= 60;
 948                                         hr = min / 60;
 949                                         min %= 60;
 950                                         d = hr / 24;
 951                                         hr %= 24;
 952
 953 //                                      eDebug("new pts (after timebase change): %016llx %d:%02d:%02d:%02d:%05d", pts, d, hr, min, sec, frm);
 954
 955                                         pkt[9] &= ~0xE;
 956                                         pkt[10] = 0;
 957                                         pkt[11] &= ~1;
 958                                         pkt[12] = 0;
 959                                         pkt[13] &= ~1;
 960
 961                                         pkt[9]  |= (pts >> 29) & 0xE;
 962                                         pkt[10] |= (pts >> 22) & 0xFF;
 963                                         pkt[11] |= (pts >> 14) & 0xFE;
 964                                         pkt[12] |= (pts >> 7) & 0xFF;
 965                                         pkt[13] |= (pts << 1) & 0xFE;
 966                                 }
 967                         }
 968                 }
 969         }
 970 #endif
 971
 972 #if 1 /* not yet */
 973         if (!m_iframe_search)
 974                 return len;
 975
 976         unsigned char *data = (unsigned char*)_data; /* remove that const. we know what we are doing. */
 977
 978 //      eDebug("filterRecordData, size=%d (mod 188=%d), first byte is %02x", len, len %188, data[0]);
 979
 980         unsigned char *d = data;
 981         while ((d = (unsigned char*)memmem(d, data + len - d, "\x00\x00\x01", 3)))
 982         {
 983                 int offset = d - data;
 984                 int ts_offset = offset - offset % 188; /* offset to the start of TS packet */
 985                 unsigned char *ts = data + ts_offset;
 986                 int pid = ((ts[1] << 8) | ts[2]) & 0x1FFF;
 987
 988                 if ((d[3] == 0) && (m_pid == pid))  /* picture start */
 989                 {
 990                         int picture_type = (d[5] >> 3) & 7;
 991                         d += 4;
 992
 993 //                      eDebug("%d-frame at %d, offset in TS packet: %d, pid=%04x", picture_type, offset, offset % 188, pid);
 994
 995                         if (m_iframe_state == 1)
 996                         {
 997                                         /* we are allowing data, and stop allowing data on the next frame.
 998                                            we now found a frame. so stop here. */
 999                                 memset(data + offset, 0, 188 - (offset%188)); /* zero out rest of TS packet */
1000                                 current_span_remaining = 0;
1001                                 m_iframe_state = 0;
1002                                 unsigned char *fts = ts + 188;
1003                                 while (fts < (data + len))
1004                                 {
1005                                         fts[1] |= 0x1f;
1006                                         fts[2] |= 0xff; /* drop packet */
1007                                         fts += 188;
1008                                 }
1009
1010                                 return len; // ts_offset + 188; /* deliver this packet, but not more. */
1011                         } else
1012                         {
1013                                 if (picture_type != 1) /* we are only interested in I frames */
1014                                         continue;
1015
1016                                 unsigned char *fts = data;
1017                                 while (fts < ts)
1018                                 {
1019                                         fts[1] |= 0x1f;
1020                                         fts[2] |= 0xff; /* drop packet */
1021
1022                                         fts += 188;
1023                                 }
1024                                                 /* force payload only */
1025                                 ts[3] &= ~0x30;
1026                                 ts[3] |=  0x10;
1027
1028 //                              memset(ts + 4, 0xFF, (offset % 188) - 4);
1029
1030                                 m_iframe_state = 1;
1031                         }
1032                 } else if ((d[3] & 0xF0) == 0xE0) /* video stream */
1033                 {
1034                         if (m_pid != pid)
1035                         {
1036                                 eDebug("now locked to pid %04x", pid);
1037                                 m_pid = pid;
1038                         }
1039 //                      m_pid = 0x6e;
1040                         d += 4;
1041                 } else
1042                         d += 4; /* ignore */
1043
1044         }
1045
1046         if (m_iframe_state == 1)
1047                 return len;
1048         else
1049                 return 0; /* we need find an iframe first */
1050 #else
1051         return len;
1052 #endif
1053 }
1054
1055 DEFINE_REF(eDVBChannel);
1056
1057 eDVBChannel::eDVBChannel(eDVBResourceManager *mgr, eDVBAllocatedFrontend *frontend): m_state(state_idle), m_mgr(mgr)
1058 {
1059         m_frontend = frontend;
1060
1061         m_pvr_thread = 0;
1062
1063         m_skipmode_n = m_skipmode_m = 0;
1064
1065         if (m_frontend)
1066                 m_frontend->get().connectStateChange(slot(*this, &eDVBChannel::frontendStateChanged), m_conn_frontendStateChanged);
1067 }
1068
1069 eDVBChannel::~eDVBChannel()
1070 {
1071         if (m_channel_id)
1072                 m_mgr->removeChannel(this);
1073
1074         stopFile();
1075 }
1076
1077 void eDVBChannel::frontendStateChanged(iDVBFrontend*fe)
1078 {
1079         int state, ourstate = 0;
1080
1081                 /* if we are already in shutdown, don't change state. */
1082         if (m_state == state_release)
1083                 return;
1084
1085         if (fe->getState(state))
1086                 return;
1087
1088         if (state == iDVBFrontend::stateLock)
1089         {
1090                 eDebug("OURSTATE: ok");
1091                 ourstate = state_ok;
1092         } else if (state == iDVBFrontend::stateTuning)
1093         {
1094                 eDebug("OURSTATE: tuning");
1095                 ourstate = state_tuning;
1096         } else if (state == iDVBFrontend::stateLostLock)
1097         {
1098                         /* on managed channels, we try to retune in order to re-acquire lock. */
1099                 if (m_current_frontend_parameters)
1100                 {
1101                         eDebug("OURSTATE: lost lock, trying to retune");
1102                         ourstate = state_tuning;
1103                         m_frontend->get().tune(*m_current_frontend_parameters);
1104                 } else
1105                         /* on unmanaged channels, we don't do this. the client will do this. */
1106                 {
1107                         eDebug("OURSTATE: lost lock, unavailable now.");
1108                         ourstate = state_unavailable;
1109                 }
1110         } else if (state == iDVBFrontend::stateFailed)
1111         {
1112                 eDebug("OURSTATE: failed");
1113                 ourstate = state_failed;
1114         } else
1115                 eFatal("state unknown");
1116
1117         if (ourstate != m_state)
1118         {
1119                 m_state = ourstate;
1120                 m_stateChanged(this);
1121         }
1122 }
1123
1124 void eDVBChannel::pvrEvent(int event)
1125 {
1126         switch (event)
1127         {
1128         case eFilePushThread::evtEOF:
1129                 eDebug("eDVBChannel: End of file!");
1130                 m_event(this, evtEOF);
1131                 break;
1132         case eFilePushThread::evtUser: /* start */
1133                 eDebug("SOF");
1134                 m_event(this, evtSOF);
1135                 break;
1136         }
1137 }
1138
1139 void eDVBChannel::cueSheetEvent(int event)
1140 {
1141                 /* we might end up here if playing failed or stopped, but the client hasn't (yet) noted. */
1142         if (!m_pvr_thread)
1143                 return;
1144         switch (event)
1145         {
1146         case eCueSheet::evtSeek:
1147                 eDebug("seek.");
1148                 flushPVR(m_cue->m_decoding_demux);
1149                 break;
1150         case eCueSheet::evtSkipmode:
1151         {
1152                 {
1153                         m_cue->m_lock.WrLock();
1154                         m_cue->m_seek_requests.push_back(std::pair<int, pts_t>(1, 0)); /* resync */
1155                         m_cue->m_lock.Unlock();
1156                         eRdLocker l(m_cue->m_lock);
1157                         if (m_cue->m_skipmode_ratio)
1158                         {
1159                                 int bitrate = m_tstools.calcBitrate(); /* in bits/s */
1160                                 eDebug("skipmode ratio is %lld:90000, bitrate is %d bit/s", m_cue->m_skipmode_ratio, bitrate);
1161                                                 /* i agree that this might look a bit like black magic. */
1162                                 m_skipmode_n = 512*1024; /* must be 1 iframe at least. */
1163                                 m_skipmode_m = bitrate / 8 / 90000 * m_cue->m_skipmode_ratio / 8;
1164
1165                                 if (m_cue->m_skipmode_ratio < 0)
1166                                         m_skipmode_m -= m_skipmode_n;
1167
1168                                 eDebug("resolved to: %d %d", m_skipmode_m, m_skipmode_n);
1169
1170                                 if (abs(m_skipmode_m) < abs(m_skipmode_n))
1171                                 {
1172                                         eWarning("something is wrong with this calculation");
1173                                         m_skipmode_n = m_skipmode_m = 0;
1174                                 }
1175                         } else
1176                         {
1177                                 eDebug("skipmode ratio is 0, normal play");
1178                                 m_skipmode_n = m_skipmode_m = 0;
1179                         }
1180                 }
1181                 m_pvr_thread->setIFrameSearch(m_skipmode_n != 0);
1182                 if (m_cue->m_skipmode_ratio != 0)
1183                         m_pvr_thread->setTimebaseChange(0x10000 * 9000 / (m_cue->m_skipmode_ratio / 10)); /* negative values are also ok */
1184                 else
1185                         m_pvr_thread->setTimebaseChange(0); /* normal playback */
1186                 eDebug("flush pvr");
1187                 flushPVR(m_cue->m_decoding_demux);
1188                 eDebug("done");
1189                 break;
1190         }
1191         case eCueSheet::evtSpanChanged:
1192         {
1193                 m_source_span.clear();
1194                 for (std::list<std::pair<pts_t, pts_t> >::const_iterator i(m_cue->m_spans.begin()); i != m_cue->m_spans.end(); ++i)
1195                 {
1196                         off_t offset_in, offset_out;
1197                         pts_t pts_in = i->first, pts_out = i->second;
1198                         if (m_tstools.getOffset(offset_in, pts_in, -1) || m_tstools.getOffset(offset_out, pts_out, 1))
1199                         {
1200                                 eDebug("span translation failed.\n");
1201                                 continue;
1202                         }
1203                         eDebug("source span: %llx .. %llx, translated to %llx..%llx", pts_in, pts_out, offset_in, offset_out);
1204                         m_source_span.push_back(std::pair<off_t, off_t>(offset_in, offset_out));
1205                 }
1206                 break;
1207         }
1208         }
1209 }
1210
1211         /* align toward zero */
1212 static inline long long align(long long x, int align)
1213 {
1214         int sign = x < 0;
1215
1216         if (sign)
1217                 x = -x;
1218
1219         x -= x % align;
1220
1221         if (sign)
1222                 x = -x;
1223
1224         return x;
1225 }
1226
1227         /* remember, this gets called from another thread. */
1228 void eDVBChannel::getNextSourceSpan(off_t current_offset, size_t bytes_read, off_t &start, size_t &size)
1229 {
1230         const int blocksize = 188;
1231         unsigned int max = align(10*1024*1024, blocksize);
1232         current_offset = align(current_offset, blocksize);
1233
1234         if (!m_cue)
1235         {
1236                 eDebug("no cue sheet. forcing normal play");
1237                 start = current_offset;
1238                 size = max;
1239                 return;
1240         }
1241
1242         m_cue->m_lock.RdLock();
1243         if (!m_cue->m_decoding_demux)
1244         {
1245                 start = current_offset;
1246                 size = max;
1247                 eDebug("getNextSourceSpan, no decoding demux. forcing normal play");
1248                 m_cue->m_lock.Unlock();
1249                 return;
1250         }
1251
1252         if (m_skipmode_n)
1253         {
1254                 eDebug("skipmode %d:%d", m_skipmode_m, m_skipmode_n);
1255                 max = align(m_skipmode_n, blocksize);
1256         }
1257
1258         eDebug("getNextSourceSpan, current offset is %08llx, m_skipmode_m = %d!", current_offset, m_skipmode_m);
1259
1260         current_offset += align(m_skipmode_m, blocksize);
1261
1262         while (!m_cue->m_seek_requests.empty())
1263         {
1264                 std::pair<int, pts_t> seek = m_cue->m_seek_requests.front();
1265                 m_cue->m_lock.Unlock();
1266                 m_cue->m_lock.WrLock();
1267                 m_cue->m_seek_requests.pop_front();
1268                 m_cue->m_lock.Unlock();
1269                 m_cue->m_lock.RdLock();
1270                 int relative = seek.first;
1271                 pts_t pts = seek.second;
1272
1273                 pts_t now = 0;
1274                 if (relative)
1275                 {
1276                         if (!m_cue->m_decoder)
1277                         {
1278                                 eDebug("no decoder - can't seek relative");
1279                                 continue;
1280                         }
1281                         if (m_cue->m_decoder->getPTS(0, now))
1282                         {
1283                                 eDebug("decoder getPTS failed, can't seek relative");
1284                                 continue;
1285                         }
1286                         if (getCurrentPosition(m_cue->m_decoding_demux, now, 1))
1287                         {
1288                                 eDebug("seekTo: getCurrentPosition failed!");
1289                                 continue;
1290                         }
1291                 } else if (pts < 0) /* seek relative to end */
1292                 {
1293                         pts_t len;
1294                         if (!getLength(len))
1295                         {
1296                                 eDebug("seeking relative to end. len=%lld, seek = %lld", len, pts);
1297                                 pts += len;
1298                         } else
1299                         {
1300                                 eWarning("getLength failed - can't seek relative to end!");
1301                                 continue;
1302                         }
1303                 }
1304
1305                 if (relative == 1) /* pts relative */
1306                 {
1307                         pts += now;
1308                         if (pts < 0)
1309                                 pts = 0;
1310                 }
1311
1312                 if (relative != 2)
1313                         if (pts < 0)
1314                                 pts = 0;
1315
1316                 if (relative == 2) /* AP relative */
1317                 {
1318                         eDebug("AP relative seeking: %lld, at %lld", pts, now);
1319                         pts_t nextap;
1320                         if (m_tstools.getNextAccessPoint(nextap, now, pts))
1321                         {
1322                                 pts = now - 90000; /* approx. 1s */
1323                                 eDebug("AP relative seeking failed!");
1324                         } else
1325                         {
1326                                 pts = nextap;
1327                                 eDebug("next ap is %llx\n", pts);
1328                         }
1329                 }
1330
1331                 off_t offset = 0;
1332                 if (m_tstools.getOffset(offset, pts, -1))
1333                 {
1334                         eDebug("get offset for pts=%lld failed!", pts);
1335                         continue;
1336                 }
1337
1338                 eDebug("ok, resolved skip (rel: %d, diff %lld), now at %08llx", relative, pts, offset);
1339                 current_offset = align(offset, blocksize); /* in case tstools return non-aligned offset */
1340         }
1341
1342         m_cue->m_lock.Unlock();
1343
1344         for (std::list<std::pair<off_t, off_t> >::const_iterator i(m_source_span.begin()); i != m_source_span.end(); ++i)
1345         {
1346                 long long aligned_start = align(i->first, blocksize);
1347                 long long aligned_end = align(i->second, blocksize);
1348
1349                 if ((current_offset >= aligned_start) && (current_offset < aligned_end))
1350                 {
1351                         start = current_offset;
1352                                 /* max can not exceed max(size_t). aligned_end - current_offset, however, can. */
1353                         if ((aligned_end - current_offset) > max)
1354                                 size = max;
1355                         else
1356                                 size = aligned_end - current_offset;
1357                         eDebug("HIT, %lld < %lld < %lld, size: %d", i->first, current_offset, i->second, size);
1358                         return;
1359                 }
1360                 if (current_offset < aligned_start)
1361                 {
1362                                 /* ok, our current offset is in an 'out' zone. */
1363                         if ((m_skipmode_m >= 0) || (i == m_source_span.begin()))
1364                         {
1365                                         /* in normal playback, just start at the next zone. */
1366                                 start = i->first;
1367
1368                                         /* size is not 64bit! */
1369                                 if ((i->second - i->first) > max)
1370                                         size = max;
1371                                 else
1372                                         size = aligned_end - aligned_start;
1373
1374                                 eDebug("skip");
1375                                 if (m_skipmode_m < 0)
1376                                 {
1377                                         eDebug("reached SOF");
1378                                                 /* reached SOF */
1379                                         m_skipmode_m = 0;
1380                                         m_pvr_thread->sendEvent(eFilePushThread::evtUser);
1381                                 }
1382                         } else
1383                         {
1384                                         /* when skipping reverse, however, choose the zone before. */
1385                                 --i;
1386                                 eDebug("skip to previous block, which is %llx..%llx", i->first, i->second);
1387                                 size_t len;
1388
1389                                 aligned_start = align(i->first, blocksize);
1390                                 aligned_end = align(i->second, blocksize);
1391
1392                                 if ((aligned_end - aligned_start) > max)
1393                                         len = max;
1394                                 else
1395                                         len = aligned_end - aligned_start;
1396
1397                                 start = aligned_end - len;
1398                                 eDebug("skipping to %llx, %d", start, len);
1399                         }
1400
1401                         eDebug("result: %llx, %x (%llx %llx)", start, size, aligned_start, aligned_end);
1402                         return;
1403                 }
1404         }
1405
1406         if (m_source_span.empty()) {
1407                 if ((current_offset < -m_skipmode_m) && (m_skipmode_m < 0))
1408                 {
1409                         eDebug("reached SOF");
1410                         m_skipmode_m = 0;
1411                         m_pvr_thread->sendEvent(eFilePushThread::evtUser);
1412                 }
1413                 start = current_offset;
1414                 size = max;
1415         } else {
1416                 off_t tmp = align(m_source_span.rbegin()->second, blocksize);
1417                 if (current_offset == tmp) {
1418                         start = current_offset;
1419                         size = 0;
1420                 } else {
1421                         start = tmp - align(512*1024, blocksize);
1422                         size = align(512*1024, blocksize);
1423                 }
1424         }
1425
1426         eDebug("END OF CUESHEET. (%08llx, %d)", start, size);
1427         return;
1428 }
1429
1430 void eDVBChannel::AddUse()
1431 {
1432         if (++m_use_count > 1 && m_state == state_last_instance)
1433         {
1434                 m_state = state_ok;
1435                 m_stateChanged(this);
1436         }
1437 }
1438
1439 void eDVBChannel::ReleaseUse()
1440 {
1441         if (!--m_use_count)
1442         {
1443                 m_state = state_release;
1444                 m_stateChanged(this);
1445         }
1446         else if (m_use_count == 1)
1447         {
1448                 m_state = state_last_instance;
1449                 m_stateChanged(this);
1450         }
1451 }
1452
1453 RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid, ePtr<iDVBFrontendParameters> &feparm)
1454 {
1455         if (m_channel_id)
1456                 m_mgr->removeChannel(this);
1457
1458         if (!channelid)
1459                 return 0;
1460
1461         if (!m_frontend)
1462         {
1463                 eDebug("no frontend to tune!");
1464                 return -ENODEV;
1465         }
1466
1467         m_channel_id = channelid;
1468         m_mgr->addChannel(channelid, this);
1469         m_state = state_tuning;
1470                         /* if tuning fails, shutdown the channel immediately. */
1471         int res;
1472         res = m_frontend->get().tune(*feparm);
1473         m_current_frontend_parameters = feparm;
1474
1475         if (res)
1476         {
1477                 m_state = state_release;
1478                 m_stateChanged(this);
1479                 return res;
1480         }
1481
1482         return 0;
1483 }
1484
1485 RESULT eDVBChannel::connectStateChange(const Slot1<void,iDVBChannel*> &stateChange, ePtr<eConnection> &connection)
1486 {
1487         connection = new eConnection((iDVBChannel*)this, m_stateChanged.connect(stateChange));
1488         return 0;
1489 }
1490
1491 RESULT eDVBChannel::connectEvent(const Slot2<void,iDVBChannel*,int> &event, ePtr<eConnection> &connection)
1492 {
1493         connection = new eConnection((iDVBChannel*)this, m_event.connect(event));
1494         return 0;
1495 }
1496
1497 RESULT eDVBChannel::getState(int &state)
1498 {
1499         state = m_state;
1500         return 0;
1501 }
1502
1503 RESULT eDVBChannel::setCIRouting(const eDVBCIRouting &routing)
1504 {
1505         return -1;
1506 }
1507
1508 RESULT eDVBChannel::getDemux(ePtr<iDVBDemux> &demux, int cap)
1509 {
1510         ePtr<eDVBAllocatedDemux> &our_demux = (cap & capDecode) ? m_decoder_demux : m_demux;
1511
1512         if (!our_demux)
1513         {
1514                 demux = 0;
1515
1516                 if (m_mgr->allocateDemux(m_frontend ? (eDVBRegisteredFrontend*)*m_frontend : (eDVBRegisteredFrontend*)0, our_demux, cap))
1517                         return -1;
1518         }
1519
1520         demux = *our_demux;
1521                 /* don't hold a reference to the decoding demux, we don't need it. */
1522
1523                 /* FIXME: by dropping the 'allocated demux' in favour of the 'iDVBDemux',
1524                    the refcount is lost. thus, decoding demuxes are never allocated.
1525
1526                    this poses a big problem for PiP. */
1527         if (cap & capDecode)
1528                 our_demux = 0;
1529         return 0;
1530 }
1531
1532 RESULT eDVBChannel::getFrontend(ePtr<iDVBFrontend> &frontend)
1533 {
1534         frontend = 0;
1535         if (!m_frontend)
1536                 return -ENODEV;
1537         frontend = &m_frontend->get();
1538         if (frontend)
1539                 return 0;
1540         return -ENODEV;
1541 }
1542
1543 RESULT eDVBChannel::getCurrentFrontendParameters(ePtr<iDVBFrontendParameters> &param)
1544 {
1545         param = m_current_frontend_parameters;
1546         return 0;
1547 }
1548
1549 RESULT eDVBChannel::playFile(const char *file)
1550 {
1551         ASSERT(!m_frontend);
1552         if (m_pvr_thread)
1553         {
1554                 m_pvr_thread->stop();
1555                 delete m_pvr_thread;
1556                 m_pvr_thread = 0;
1557         }
1558
1559         m_tstools.openFile(file);
1560
1561                 /* DON'T EVEN THINK ABOUT FIXING THIS. FIX THE ATI SOURCES FIRST,
1562                    THEN DO A REAL FIX HERE! */
1563
1564                 /* (this codepath needs to be improved anyway.) */
1565 #if HAVE_DVB_API_VERSION < 3
1566         m_pvr_fd_dst = open("/dev/pvr", O_WRONLY);
1567 #else
1568         m_pvr_fd_dst = open("/dev/misc/pvr", O_WRONLY);
1569 #endif
1570         if (m_pvr_fd_dst < 0)
1571         {
1572                 eDebug("can't open /dev/misc/pvr - you need to buy the new(!) $$$ box! (%m)"); // or wait for the driver to be improved.
1573                 return -ENODEV;
1574         }
1575
1576         m_pvr_thread = new eDVBChannelFilePush();
1577         m_pvr_thread->enablePVRCommit(1);
1578         m_pvr_thread->setStreamMode(1);
1579         m_pvr_thread->setScatterGather(this);
1580
1581         if (m_pvr_thread->start(file, m_pvr_fd_dst))
1582         {
1583                 delete m_pvr_thread;
1584                 m_pvr_thread = 0;
1585                 eDebug("can't open PVR file %s (%m)", file);
1586                 return -ENOENT;
1587         }
1588         CONNECT(m_pvr_thread->m_event, eDVBChannel::pvrEvent);
1589
1590         m_state = state_ok;
1591         m_stateChanged(this);
1592
1593         return 0;
1594 }
1595
1596 void eDVBChannel::stopFile()
1597 {
1598         if (m_pvr_thread)
1599         {
1600                 m_pvr_thread->stop();
1601                 ::close(m_pvr_fd_dst);
1602                 delete m_pvr_thread;
1603                 m_pvr_thread = 0;
1604         }
1605 }
1606
1607 void eDVBChannel::setCueSheet(eCueSheet *cuesheet)
1608 {
1609         m_conn_cueSheetEvent = 0;
1610         m_cue = cuesheet;
1611         if (m_cue)
1612                 m_cue->connectEvent(slot(*this, &eDVBChannel::cueSheetEvent), m_conn_cueSheetEvent);
1613 }
1614
1615 RESULT eDVBChannel::getLength(pts_t &len)
1616 {
1617         return m_tstools.calcLen(len);
1618 }
1619
1620 RESULT eDVBChannel::getCurrentPosition(iDVBDemux *decoding_demux, pts_t &pos, int mode)
1621 {
1622         if (!decoding_demux)
1623                 return -1;
1624
1625         pts_t now;
1626
1627         int r;
1628
1629         if (mode == 0) /* demux */
1630         {
1631                 r = decoding_demux->getSTC(now, 0);
1632                 if (r)
1633                 {
1634                         eDebug("demux getSTC failed");
1635                         return -1;
1636                 }
1637         } else
1638                 now = pos; /* fixup supplied */
1639
1640         off_t off = 0; /* TODO: fixme */
1641         r = m_tstools.fixupPTS(off, now);
1642         if (r)
1643         {
1644                 eDebug("fixup PTS failed");
1645                 return -1;
1646         }
1647
1648         pos = now;
1649
1650         return 0;
1651 }
1652
1653 void eDVBChannel::flushPVR(iDVBDemux *decoding_demux)
1654 {
1655                         /* when seeking, we have to ensure that all buffers are flushed.
1656                            there are basically 3 buffers:
1657                            a.) the filepush's internal buffer
1658                            b.) the PVR buffer (before demux)
1659                            c.) the ratebuffer (after demux)
1660
1661                            it's important to clear them in the correct order, otherwise
1662                            the ratebuffer (for example) would immediately refill from
1663                            the not-yet-flushed PVR buffer.
1664                         */
1665
1666         m_pvr_thread->pause();
1667                 /* flush internal filepush buffer */
1668         m_pvr_thread->flush();
1669                 /* HACK: flush PVR buffer */
1670         ::ioctl(m_pvr_fd_dst, 0);
1671
1672                 /* flush ratebuffers (video, audio) */
1673         if (decoding_demux)
1674                 decoding_demux->flush();
1675
1676                 /* demux will also flush all decoder.. */
1677                 /* resume will re-query the SG */
1678         m_pvr_thread->resume();
1679 }
1680
1681 DEFINE_REF(eCueSheet);
1682
1683 eCueSheet::eCueSheet()
1684 {
1685         m_skipmode_ratio = 0;
1686 }
1687
1688 void eCueSheet::seekTo(int relative, const pts_t &pts)
1689 {
1690         m_lock.WrLock();
1691         m_seek_requests.push_back(std::pair<int, pts_t>(relative, pts));
1692         m_lock.Unlock();
1693         m_event(evtSeek);
1694 }
1695
1696 void eCueSheet::clear()
1697 {
1698         m_lock.WrLock();
1699         m_spans.clear();
1700         m_lock.Unlock();
1701 }
1702
1703 void eCueSheet::addSourceSpan(const pts_t &begin, const pts_t &end)
1704 {
1705         assert(begin < end);
1706         m_lock.WrLock();
1707         m_spans.push_back(std::pair<pts_t, pts_t>(begin, end));
1708         m_lock.Unlock();
1709 }
1710
1711 void eCueSheet::commitSpans()
1712 {
1713         m_event(evtSpanChanged);
1714 }
1715
1716 void eCueSheet::setSkipmode(const pts_t &ratio)
1717 {
1718         m_lock.WrLock();
1719         m_skipmode_ratio = ratio;
1720         m_lock.Unlock();
1721         m_event(evtSkipmode);
1722 }
1723
1724 void eCueSheet::setDecodingDemux(iDVBDemux *demux, iTSMPEGDecoder *decoder)
1725 {
1726         m_decoding_demux = demux;
1727         m_decoder = decoder;
1728 }
1729
1730 RESULT eCueSheet::connectEvent(const Slot1<void,int> &event, ePtr<eConnection> &connection)
1731 {
1732         connection = new eConnection(this, m_event.connect(event));
1733         return 0;
1734 }