code.vuplus.com Git - vuplus_dvbapp/blob - 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 #include <lib/dvb/specs.h>
   8
   9 #include <errno.h>
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12 #include <unistd.h>
  13 #include <fcntl.h>
  14 #include <sys/ioctl.h>
  15
  16 DEFINE_REF(eDVBRegisteredFrontend);
  17 DEFINE_REF(eDVBRegisteredDemux);
  18
  19 DEFINE_REF(eDVBAllocatedFrontend);
  20
  21 eDVBAllocatedFrontend::eDVBAllocatedFrontend(eDVBRegisteredFrontend *fe): m_fe(fe)
  22 {
  23         m_fe->inc_use();
  24 }
  25
  26 eDVBAllocatedFrontend::~eDVBAllocatedFrontend()
  27 {
  28         m_fe->dec_use();
  29 }
  30
  31 DEFINE_REF(eDVBAllocatedDemux);
  32
  33 eDVBAllocatedDemux::eDVBAllocatedDemux(eDVBRegisteredDemux *demux): m_demux(demux)
  34 {
  35         m_demux->m_inuse++;
  36 }
  37
  38 eDVBAllocatedDemux::~eDVBAllocatedDemux()
  39 {
  40         --m_demux->m_inuse;
  41 }
  42
  43 DEFINE_REF(eDVBResourceManager);
  44
  45 eDVBResourceManager *eDVBResourceManager::instance;
  46
  47 RESULT eDVBResourceManager::getInstance(ePtr<eDVBResourceManager> &ptr)
  48 {
  49         if (instance)
  50         {
  51                 ptr = instance;
  52                 return 0;
  53         }
  54         return -1;
  55 }
  56
  57 ePtr<eDVBResourceManager> NewResourceManagerPtr(void)
  58 {
  59         ePtr<eDVBResourceManager> ptr;
  60         eDVBResourceManager::getInstance(ptr);
  61         return ptr;
  62 }
  63
  64 eDVBResourceManager::eDVBResourceManager()
  65         :m_releaseCachedChannelTimer(eTimer::create(eApp))
  66 {
  67         avail = 1;
  68         busy = 0;
  69         m_sec = new eDVBSatelliteEquipmentControl(m_frontend, m_simulate_frontend);
  70
  71         if (!instance)
  72                 instance = this;
  73
  74                 /* search available adapters... */
  75
  76                 // add linux devices
  77
  78         int num_adapter = 0;
  79         while (eDVBAdapterLinux::exist(num_adapter))
  80         {
  81                 addAdapter(new eDVBAdapterLinux(num_adapter));
  82                 num_adapter++;
  83         }
  84
  85         eDebug("found %d adapter, %d frontends(%d sim) and %d demux",
  86                 m_adapter.size(), m_frontend.size(), m_simulate_frontend.size(), m_demux.size());
  87
  88         eDVBCAService::registerChannelCallback(this);
  89
  90         CONNECT(m_releaseCachedChannelTimer->timeout, eDVBResourceManager::releaseCachedChannel);
  91 }
  92
  93 void eDVBResourceManager::feStateChanged()
  94 {
  95         int mask=0;
  96         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
  97                 if (i->m_inuse)
  98                         mask |= ( 1 << i->m_frontend->getSlotID() );
  99         /* emit */ frontendUseMaskChanged(mask);
 100 }
 101
 102 DEFINE_REF(eDVBAdapterLinux);
 103 eDVBAdapterLinux::eDVBAdapterLinux(int nr): m_nr(nr)
 104 {
 105                 // scan frontends
 106         int num_fe = 0;
 107
 108         eDebug("scanning for frontends..");
 109         while (1)
 110         {
 111                 struct stat s;
 112                 char filename[128];
 113 #if HAVE_DVB_API_VERSION < 3
 114                 sprintf(filename, "/dev/dvb/card%d/frontend%d", m_nr, num_fe);
 115 #else
 116                 sprintf(filename, "/dev/dvb/adapter%d/frontend%d", m_nr, num_fe);
 117 #endif
 118                 if (stat(filename, &s))
 119                         break;
 120                 ePtr<eDVBFrontend> fe;
 121
 122                 {
 123                         int ok = 0;
 124                         fe = new eDVBFrontend(m_nr, num_fe, ok);
 125                         if (ok)
 126                                 m_frontend.push_back(fe);
 127                 }
 128                 {
 129                         int ok = 0;
 130                         fe = new eDVBFrontend(m_nr, num_fe, ok, true);
 131                         if (ok)
 132                                 m_simulate_frontend.push_back(fe);
 133                 }
 134                 ++num_fe;
 135         }
 136
 137                 // scan demux
 138         int num_demux = 0;
 139         while (1)
 140         {
 141                 struct stat s;
 142                 char filename[128];
 143 #if HAVE_DVB_API_VERSION < 3
 144                 sprintf(filename, "/dev/dvb/card%d/demux%d", m_nr, num_demux);
 145 #else
 146                 sprintf(filename, "/dev/dvb/adapter%d/demux%d", m_nr, num_demux);
 147 #endif
 148                 if (stat(filename, &s))
 149                         break;
 150                 ePtr<eDVBDemux> demux;
 151
 152                 demux = new eDVBDemux(m_nr, num_demux);
 153                 m_demux.push_back(demux);
 154
 155                 ++num_demux;
 156         }
 157 }
 158
 159 int eDVBAdapterLinux::getNumDemux()
 160 {
 161         return m_demux.size();
 162 }
 163
 164 RESULT eDVBAdapterLinux::getDemux(ePtr<eDVBDemux> &demux, int nr)
 165 {
 166         eSmartPtrList<eDVBDemux>::iterator i(m_demux.begin());
 167         while (nr && (i != m_demux.end()))
 168         {
 169                 --nr;
 170                 ++i;
 171         }
 172
 173         if (i != m_demux.end())
 174                 demux = *i;
 175         else
 176                 return -1;
 177
 178         return 0;
 179 }
 180
 181 int eDVBAdapterLinux::getNumFrontends()
 182 {
 183         return m_frontend.size();
 184 }
 185
 186 RESULT eDVBAdapterLinux::getFrontend(ePtr<eDVBFrontend> &fe, int nr, bool simulate)
 187 {
 188         eSmartPtrList<eDVBFrontend>::iterator i(simulate ? m_simulate_frontend.begin() : m_frontend.begin());
 189         while (nr && (i != m_frontend.end()))
 190         {
 191                 --nr;
 192                 ++i;
 193         }
 194
 195         if (i != m_frontend.end())
 196                 fe = *i;
 197         else
 198                 return -1;
 199
 200         return 0;
 201 }
 202
 203 int eDVBAdapterLinux::exist(int nr)
 204 {
 205         struct stat s;
 206         char filename[128];
 207 #if HAVE_DVB_API_VERSION < 3
 208         sprintf(filename, "/dev/dvb/card%d", nr);
 209 #else
 210         sprintf(filename, "/dev/dvb/adapter%d", nr);
 211 #endif
 212         if (!stat(filename, &s))
 213                 return 1;
 214         return 0;
 215 }
 216
 217 eDVBResourceManager::~eDVBResourceManager()
 218 {
 219         if (instance == this)
 220                 instance = 0;
 221 }
 222
 223 void eDVBResourceManager::addAdapter(iDVBAdapter *adapter)
 224 {
 225         int num_fe = adapter->getNumFrontends();
 226         int num_demux = adapter->getNumDemux();
 227
 228         m_adapter.push_back(adapter);
 229
 230         int i;
 231         for (i=0; i<num_demux; ++i)
 232         {
 233                 ePtr<eDVBDemux> demux;
 234                 if (!adapter->getDemux(demux, i))
 235                         m_demux.push_back(new eDVBRegisteredDemux(demux, adapter));
 236         }
 237
 238         ePtr<eDVBRegisteredFrontend> prev_dvbt_frontend;
 239         for (i=0; i<num_fe; ++i)
 240         {
 241                 ePtr<eDVBFrontend> frontend;
 242                 if (!adapter->getFrontend(frontend, i))
 243                 {
 244                         int frontendType=0;
 245                         frontend->getFrontendType(frontendType);
 246                         eDVBRegisteredFrontend *new_fe = new eDVBRegisteredFrontend(frontend, adapter);
 247                         CONNECT(new_fe->stateChanged, eDVBResourceManager::feStateChanged);
 248                         m_frontend.push_back(new_fe);
 249                         frontend->setSEC(m_sec);
 250                         // we must link all dvb-t frontends ( for active antenna voltage )
 251                         if (frontendType == iDVBFrontend::feTerrestrial)
 252                         {
 253                                 if (prev_dvbt_frontend)
 254                                 {
 255                                         prev_dvbt_frontend->m_frontend->setData(eDVBFrontend::LINKED_NEXT_PTR, (long)new_fe);
 256                                         frontend->setData(eDVBFrontend::LINKED_PREV_PTR, (long)&(*prev_dvbt_frontend));
 257                                 }
 258                                 prev_dvbt_frontend = new_fe;
 259                         }
 260                 }
 261         }
 262
 263         prev_dvbt_frontend = 0;
 264         for (i=0; i<num_fe; ++i)
 265         {
 266                 ePtr<eDVBFrontend> frontend;
 267                 if (!adapter->getFrontend(frontend, i, true))
 268                 {
 269                         int frontendType=0;
 270                         frontend->getFrontendType(frontendType);
 271                         eDVBRegisteredFrontend *new_fe = new eDVBRegisteredFrontend(frontend, adapter);
 272 //                      CONNECT(new_fe->stateChanged, eDVBResourceManager::feStateChanged);
 273                         m_simulate_frontend.push_back(new_fe);
 274                         frontend->setSEC(m_sec);
 275                         // we must link all dvb-t frontends ( for active antenna voltage )
 276                         if (frontendType == iDVBFrontend::feTerrestrial)
 277                         {
 278                                 if (prev_dvbt_frontend)
 279                                 {
 280                                         prev_dvbt_frontend->m_frontend->setData(eDVBFrontend::LINKED_NEXT_PTR, (long)new_fe);
 281                                         frontend->setData(eDVBFrontend::LINKED_PREV_PTR, (long)&(*prev_dvbt_frontend));
 282                                 }
 283                                 prev_dvbt_frontend = new_fe;
 284                         }
 285                 }
 286         }
 287
 288 }
 289
 290 PyObject *eDVBResourceManager::setFrontendSlotInformations(ePyObject list)
 291 {
 292         if (!PyList_Check(list))
 293         {
 294                 PyErr_SetString(PyExc_StandardError, "eDVBResourceManager::setFrontendSlotInformations argument should be a python list");
 295                 return NULL;
 296         }
 297         if ((unsigned int)PyList_Size(list) != m_frontend.size())
 298         {
 299                 char blasel[256];
 300                 sprintf(blasel, "eDVBResourceManager::setFrontendSlotInformations list size incorrect %d frontends avail, but %d entries in slotlist",
 301                         m_frontend.size(), PyList_Size(list));
 302                 PyErr_SetString(PyExc_StandardError, blasel);
 303                 return NULL;
 304         }
 305         int pos=0;
 306         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
 307         {
 308                 ePyObject obj = PyList_GET_ITEM(list, pos++);
 309                 if (!i->m_frontend->setSlotInfo(obj))
 310                         return NULL;
 311         }
 312         pos=0;
 313         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_simulate_frontend.begin()); i != m_simulate_frontend.end(); ++i)
 314         {
 315                 ePyObject obj = PyList_GET_ITEM(list, pos++);
 316                 if (!i->m_frontend->setSlotInfo(obj))
 317                         return NULL;
 318         }
 319         Py_RETURN_NONE;
 320 }
 321
 322 RESULT eDVBResourceManager::allocateFrontend(ePtr<eDVBAllocatedFrontend> &fe, ePtr<iDVBFrontendParameters> &feparm, bool simulate)
 323 {
 324         eSmartPtrList<eDVBRegisteredFrontend> &frontends = simulate ? m_simulate_frontend : m_frontend;
 325         ePtr<eDVBRegisteredFrontend> best;
 326         int bestval = 0;
 327         int foundone = 0;
 328
 329         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(frontends.begin()); i != frontends.end(); ++i)
 330         {
 331                 int c = i->m_frontend->isCompatibleWith(feparm);
 332
 333                 if (c)  /* if we have at least one frontend which is compatible with the source, flag this. */
 334                         foundone = 1;
 335
 336                 if (!i->m_inuse)
 337                 {
 338 //                      eDebug("Slot %d, score %d", i->m_frontend->getSlotID(), c);
 339                         if (c > bestval)
 340                         {
 341                                 bestval = c;
 342                                 best = i;
 343                         }
 344                 }
 345 //              else
 346 //                      eDebug("Slot %d, score %d... but BUSY!!!!!!!!!!!", i->m_frontend->getSlotID(), c);
 347         }
 348
 349         if (best)
 350         {
 351                 fe = new eDVBAllocatedFrontend(best);
 352                 return 0;
 353         }
 354
 355         fe = 0;
 356
 357         if (foundone)
 358                 return errAllSourcesBusy;
 359         else
 360                 return errNoSourceFound;
 361 }
 362
 363 RESULT eDVBResourceManager::allocateFrontendByIndex(ePtr<eDVBAllocatedFrontend> &fe, int slot_index)
 364 {
 365         int err = errNoSourceFound;
 366         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
 367                 if (!i->m_inuse && i->m_frontend->getSlotID() == slot_index)
 368                 {
 369                         // check if another slot linked to this is in use
 370                         long tmp;
 371                         i->m_frontend->getData(eDVBFrontend::SATPOS_DEPENDS_PTR, tmp);
 372                         if ( tmp != -1 )
 373                         {
 374                                 eDVBRegisteredFrontend *satpos_depends_to_fe = (eDVBRegisteredFrontend *)tmp;
 375                                 if (satpos_depends_to_fe->m_inuse)
 376                                 {
 377                                         eDebug("another satpos depending frontend is in use.. so allocateFrontendByIndex not possible!");
 378                                         err = errAllSourcesBusy;
 379                                         goto alloc_fe_by_id_not_possible;
 380                                 }
 381                         }
 382                         else // check linked tuners
 383                         {
 384                                 i->m_frontend->getData(eDVBFrontend::LINKED_NEXT_PTR, tmp);
 385                                 while ( tmp != -1 )
 386                                 {
 387                                         eDVBRegisteredFrontend *next = (eDVBRegisteredFrontend *) tmp;
 388                                         if (next->m_inuse)
 389                                         {
 390                                                 eDebug("another linked frontend is in use.. so allocateFrontendByIndex not possible!");
 391                                                 err = errAllSourcesBusy;
 392                                                 goto alloc_fe_by_id_not_possible;
 393                                         }
 394                                         next->m_frontend->getData(eDVBFrontend::LINKED_NEXT_PTR, tmp);
 395                                 }
 396                                 i->m_frontend->getData(eDVBFrontend::LINKED_PREV_PTR, tmp);
 397                                 while ( tmp != -1 )
 398                                 {
 399                                         eDVBRegisteredFrontend *prev = (eDVBRegisteredFrontend *) tmp;
 400                                         if (prev->m_inuse)
 401                                         {
 402                                                 eDebug("another linked frontend is in use.. so allocateFrontendByIndex not possible!");
 403                                                 err = errAllSourcesBusy;
 404                                                 goto alloc_fe_by_id_not_possible;
 405                                         }
 406                                         prev->m_frontend->getData(eDVBFrontend::LINKED_PREV_PTR, tmp);
 407                                 }
 408                         }
 409                         fe = new eDVBAllocatedFrontend(i);
 410                         return 0;
 411                 }
 412 alloc_fe_by_id_not_possible:
 413         fe = 0;
 414         return err;
 415 }
 416
 417 RESULT eDVBResourceManager::allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBAllocatedDemux> &demux, int cap)
 418 {
 419                 /* find first unused demux which is on same adapter as frontend (or any, if PVR)
 420                    never use the first one unless we need a decoding demux. */
 421
 422         eDebug("allocate demux");
 423         eSmartPtrList<eDVBRegisteredDemux>::iterator i(m_demux.begin());
 424
 425         int n=0;
 426
 427         if (i == m_demux.end())
 428                 return -1;
 429
 430         ePtr<eDVBRegisteredDemux> unused;
 431
 432         if (m_demux.size() < 5)
 433         {
 434                 /* FIXME: hardware demux policy */
 435                 if (!(cap & iDVBChannel::capDecode))
 436                 {
 437                         if (m_demux.size() > 2)  /* assumed to be true, otherwise we have lost anyway */
 438                         {
 439                                 ++i, ++n;
 440                                 ++i, ++n;
 441                         }
 442                 }
 443
 444                 for (; i != m_demux.end(); ++i, ++n)
 445                 {
 446                         int is_decode = n < 2;
 447
 448                         int in_use = is_decode ? (i->m_demux->getRefCount() != 2) : i->m_inuse;
 449
 450                         if ((!in_use) && ((!fe) || (i->m_adapter == fe->m_adapter)))
 451                         {
 452                                 if ((cap & iDVBChannel::capDecode) && !is_decode)
 453                                         continue;
 454                                 unused = i;
 455                                 break;
 456                         }
 457                 }
 458         }
 459         else // we asume dm8000
 460         {
 461                 for (; i != m_demux.end(); ++i, ++n)
 462                 {
 463                         if (fe)
 464                         {
 465                                 if (!i->m_inuse)
 466                                 {
 467                                         if (!unused)
 468                                                 unused = i;
 469                                 }
 470                                 else if (i->m_adapter == fe->m_adapter &&
 471                                     i->m_demux->getSource() == fe->m_frontend->getDVBID())
 472                                 {
 473                                         demux = new eDVBAllocatedDemux(i);
 474                                         return 0;
 475                                 }
 476                         }
 477                         else if (n == 4) // always use demux4 for PVR (demux 4 can not descramble...)
 478                         {
 479                                 if (i->m_inuse) {
 480                                         demux = new eDVBAllocatedDemux(i);
 481                                         return 0;
 482                                 }
 483                                 unused = i;
 484                         }
 485                 }
 486         }
 487
 488         if (unused)
 489         {
 490                 demux = new eDVBAllocatedDemux(unused);
 491                 if (fe)
 492                         demux->get().setSourceFrontend(fe->m_frontend->getDVBID());
 493                 else
 494                         demux->get().setSourcePVR(0);
 495                 return 0;
 496         }
 497
 498         eDebug("demux not found");
 499         return -1;
 500 }
 501
 502 RESULT eDVBResourceManager::setChannelList(iDVBChannelList *list)
 503 {
 504         m_list = list;
 505         return 0;
 506 }
 507
 508 RESULT eDVBResourceManager::getChannelList(ePtr<iDVBChannelList> &list)
 509 {
 510         list = m_list;
 511         if (list)
 512                 return 0;
 513         else
 514                 return -ENOENT;
 515 }
 516
 517 #define eDebugNoSimulate(x...) \
 518         do { \
 519                 if (!simulate) \
 520                         eDebug(x); \
 521         } while(0)
 522 //              else \
 523 //              { \
 524 //                      eDebugNoNewLine("SIMULATE:"); \
 525 //                      eDebug(x); \
 526 //              } \
 527
 528
 529 RESULT eDVBResourceManager::allocateChannel(const eDVBChannelID &channelid, eUsePtr<iDVBChannel> &channel, bool simulate)
 530 {
 531                 /* first, check if a channel is already existing. */
 532         std::list<active_channel> &active_channels = simulate ? m_active_simulate_channels : m_active_channels;
 533
 534         if (!simulate && m_cached_channel)
 535         {
 536                 eDVBChannel *cache_chan = (eDVBChannel*)&(*m_cached_channel);
 537                 if(channelid==cache_chan->getChannelID())
 538                 {
 539                         eDebug("use cached_channel");
 540                         channel = m_cached_channel;
 541                         return 0;
 542                 }
 543                 m_cached_channel_state_changed_conn.disconnect();
 544                 m_cached_channel=0;
 545                 m_releaseCachedChannelTimer->stop();
 546         }
 547
 548         eDebugNoSimulate("allocate channel.. %04x:%04x", channelid.transport_stream_id.get(), channelid.original_network_id.get());
 549         for (std::list<active_channel>::iterator i(active_channels.begin()); i != active_channels.end(); ++i)
 550         {
 551                 eDebugNoSimulate("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
 552                 if (i->m_channel_id == channelid)
 553                 {
 554                         eDebugNoSimulate("found shared channel..");
 555                         channel = i->m_channel;
 556                         return 0;
 557                 }
 558         }
 559
 560         /* no currently available channel is tuned to this channelid. create a new one, if possible. */
 561
 562         if (!m_list)
 563         {
 564                 eDebugNoSimulate("no channel list set!");
 565                 return errNoChannelList;
 566         }
 567
 568         ePtr<iDVBFrontendParameters> feparm;
 569         if (m_list->getChannelFrontendData(channelid, feparm))
 570         {
 571                 eDebugNoSimulate("channel not found!");
 572                 return errChannelNotInList;
 573         }
 574
 575         /* allocate a frontend. */
 576
 577         ePtr<eDVBAllocatedFrontend> fe;
 578
 579         int err = allocateFrontend(fe, feparm, simulate);
 580         if (err)
 581                 return err;
 582
 583         RESULT res;
 584         ePtr<eDVBChannel> ch = new eDVBChannel(this, fe);
 585
 586         res = ch->setChannel(channelid, feparm);
 587         if (res)
 588         {
 589                 channel = 0;
 590                 return errChidNotFound;
 591         }
 592
 593         if (simulate)
 594                 channel = ch;
 595         else
 596         {
 597                 m_cached_channel = channel = ch;
 598                 m_cached_channel_state_changed_conn =
 599                         CONNECT(ch->m_stateChanged,eDVBResourceManager::DVBChannelStateChanged);
 600         }
 601
 602         return 0;
 603 }
 604
 605 void eDVBResourceManager::DVBChannelStateChanged(iDVBChannel *chan)
 606 {
 607         int state=0;
 608         chan->getState(state);
 609         switch (state)
 610         {
 611                 case iDVBChannel::state_release:
 612                 case iDVBChannel::state_ok:
 613                 {
 614                         eDebug("stop release channel timer");
 615                         m_releaseCachedChannelTimer->stop();
 616                         break;
 617                 }
 618                 case iDVBChannel::state_last_instance:
 619                 {
 620                         eDebug("start release channel timer");
 621                         m_releaseCachedChannelTimer->start(3000, true);
 622                         break;
 623                 }
 624                 default: // ignore all other events
 625                         break;
 626         }
 627 }
 628
 629 void eDVBResourceManager::releaseCachedChannel()
 630 {
 631         eDebug("release cached channel (timer timeout)");
 632         m_cached_channel=0;
 633 }
 634
 635 RESULT eDVBResourceManager::allocateRawChannel(eUsePtr<iDVBChannel> &channel, int slot_index)
 636 {
 637         ePtr<eDVBAllocatedFrontend> fe;
 638
 639         if (m_cached_channel)
 640         {
 641                 m_cached_channel_state_changed_conn.disconnect();
 642                 m_cached_channel=0;
 643                 m_releaseCachedChannelTimer->stop();
 644         }
 645
 646         int err = allocateFrontendByIndex(fe, slot_index);
 647         if (err)
 648                 return err;
 649
 650         channel = new eDVBChannel(this, fe);
 651         return 0;
 652 }
 653
 654
 655 RESULT eDVBResourceManager::allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel)
 656 {
 657         ePtr<eDVBAllocatedDemux> demux;
 658
 659         if (m_cached_channel && m_releaseCachedChannelTimer->isActive())
 660         {
 661                 m_cached_channel_state_changed_conn.disconnect();
 662                 m_cached_channel=0;
 663                 m_releaseCachedChannelTimer->stop();
 664         }
 665
 666         channel = new eDVBChannel(this, 0);
 667         return 0;
 668 }
 669
 670 RESULT eDVBResourceManager::addChannel(const eDVBChannelID &chid, eDVBChannel *ch)
 671 {
 672         ePtr<iDVBFrontend> fe;
 673         if (!ch->getFrontend(fe))
 674         {
 675                 eDVBFrontend *frontend = (eDVBFrontend*)&(*fe);
 676                 if (frontend->is_simulate())
 677                         m_active_simulate_channels.push_back(active_channel(chid, ch));
 678                 else
 679                 {
 680                         m_active_channels.push_back(active_channel(chid, ch));
 681                         /* emit */ m_channelAdded(ch);
 682                 }
 683         }
 684         return 0;
 685 }
 686
 687 RESULT eDVBResourceManager::removeChannel(eDVBChannel *ch)
 688 {
 689         ePtr<iDVBFrontend> fe;
 690         if (!ch->getFrontend(fe))
 691         {
 692                 eDVBFrontend *frontend = (eDVBFrontend*)&(*fe);
 693                 std::list<active_channel> &active_channels = frontend->is_simulate() ? m_active_simulate_channels : m_active_channels;
 694                 int cnt = 0;
 695                 for (std::list<active_channel>::iterator i(active_channels.begin()); i != active_channels.end();)
 696                 {
 697                         if (i->m_channel == ch)
 698                         {
 699                                 i = active_channels.erase(i);
 700                                 ++cnt;
 701                         } else
 702                                 ++i;
 703                 }
 704                 ASSERT(cnt == 1);
 705                 if (cnt == 1)
 706                         return 0;
 707         }
 708         return -ENOENT;
 709 }
 710
 711 RESULT eDVBResourceManager::connectChannelAdded(const Slot1<void,eDVBChannel*> &channelAdded, ePtr<eConnection> &connection)
 712 {
 713         connection = new eConnection((eDVBResourceManager*)this, m_channelAdded.connect(channelAdded));
 714         return 0;
 715 }
 716
 717 int eDVBResourceManager::canAllocateFrontend(ePtr<iDVBFrontendParameters> &feparm, bool simulate)
 718 {
 719         eSmartPtrList<eDVBRegisteredFrontend> &frontends = simulate ? m_simulate_frontend : m_frontend;
 720         ePtr<eDVBRegisteredFrontend> best;
 721         int bestval = 0;
 722
 723         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(frontends.begin()); i != frontends.end(); ++i)
 724                 if (!i->m_inuse)
 725                 {
 726                         int c = i->m_frontend->isCompatibleWith(feparm);
 727                         if (c > bestval)
 728                                 bestval = c;
 729                 }
 730         return bestval;
 731 }
 732
 733 int tuner_type_channel_default(ePtr<iDVBChannelList> &channellist, const eDVBChannelID &chid)
 734 {
 735         if (channellist)
 736         {
 737                 ePtr<iDVBFrontendParameters> feparm;
 738                 if (!channellist->getChannelFrontendData(chid, feparm))
 739                 {
 740                         int system;
 741                         if (!feparm->getSystem(system))
 742                         {
 743                                 switch(system)
 744                                 {
 745                                         case iDVBFrontend::feSatellite:
 746                                                 return 50000;
 747                                         case iDVBFrontend::feCable:
 748                                                 return 40000;
 749                                         case iDVBFrontend::feTerrestrial:
 750                                                 return 30000;
 751                                         default:
 752                                                 break;
 753                                 }
 754                         }
 755                 }
 756         }
 757         return 0;
 758 }
 759
 760 int eDVBResourceManager::canAllocateChannel(const eDVBChannelID &channelid, const eDVBChannelID& ignore, bool simulate)
 761 {
 762         std::list<active_channel> &active_channels = simulate ? m_active_simulate_channels : m_active_channels;
 763         int ret=0;
 764         if (!simulate && m_cached_channel)
 765         {
 766                 eDVBChannel *cache_chan = (eDVBChannel*)&(*m_cached_channel);
 767                 if(channelid==cache_chan->getChannelID())
 768                         return tuner_type_channel_default(m_list, channelid);
 769         }
 770
 771                 /* first, check if a channel is already existing. */
 772 //      eDebug("allocate channel.. %04x:%04x", channelid.transport_stream_id.get(), channelid.original_network_id.get());
 773         for (std::list<active_channel>::iterator i(active_channels.begin()); i != active_channels.end(); ++i)
 774         {
 775 //              eDebug("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
 776                 if (i->m_channel_id == channelid)
 777                 {
 778 //                      eDebug("found shared channel..");
 779                         return tuner_type_channel_default(m_list, channelid);
 780                 }
 781         }
 782
 783         int *decremented_cached_channel_fe_usecount=NULL,
 784                 *decremented_fe_usecount=NULL;
 785
 786         for (std::list<active_channel>::iterator i(active_channels.begin()); i != active_channels.end(); ++i)
 787         {
 788                 eSmartPtrList<eDVBRegisteredFrontend> &frontends = simulate ? m_simulate_frontend : m_frontend;
 789 //              eDebug("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
 790                 if (i->m_channel_id == ignore)
 791                 {
 792                         eDVBChannel *channel = (eDVBChannel*) &(*i->m_channel);
 793                         // one eUsePtr<iDVBChannel> is used in eDVBServicePMTHandler
 794                         // another on eUsePtr<iDVBChannel> is used in the eDVBScan instance used in eDVBServicePMTHandler (for SDT scan)
 795                         // so we must check here if usecount is 3 (when the channel is equal to the cached channel)
 796                         // or 2 when the cached channel is not equal to the compared channel
 797                         if (channel == &(*m_cached_channel) ? channel->getUseCount() == 3 : channel->getUseCount() == 2)  // channel only used once..
 798                         {
 799                                 ePtr<iDVBFrontend> fe;
 800                                 if (!i->m_channel->getFrontend(fe))
 801                                 {
 802                                         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator ii(frontends.begin()); ii != frontends.end(); ++ii)
 803                                         {
 804                                                 if ( &(*fe) == &(*ii->m_frontend) )
 805                                                 {
 806                                                         --ii->m_inuse;
 807                                                         decremented_fe_usecount = &ii->m_inuse;
 808                                                         if (channel == &(*m_cached_channel))
 809                                                                 decremented_cached_channel_fe_usecount = decremented_fe_usecount;
 810                                                         break;
 811                                                 }
 812                                         }
 813                                 }
 814                         }
 815                         break;
 816                 }
 817         }
 818
 819         if (!decremented_cached_channel_fe_usecount)
 820         {
 821                 if (m_cached_channel)
 822                 {
 823                         eDVBChannel *channel = (eDVBChannel*) &(*m_cached_channel);
 824                         if (channel->getUseCount() == 1)
 825                         {
 826                                 ePtr<iDVBFrontend> fe;
 827                                 if (!channel->getFrontend(fe))
 828                                 {
 829                                         eSmartPtrList<eDVBRegisteredFrontend> &frontends = simulate ? m_simulate_frontend : m_frontend;
 830                                         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator ii(frontends.begin()); ii != frontends.end(); ++ii)
 831                                         {
 832                                                 if ( &(*fe) == &(*ii->m_frontend) )
 833                                                 {
 834                                                         --ii->m_inuse;
 835                                                         decremented_cached_channel_fe_usecount = &ii->m_inuse;
 836                                                         break;
 837                                                 }
 838                                         }
 839                                 }
 840                         }
 841                 }
 842         }
 843         else
 844                 decremented_cached_channel_fe_usecount=NULL;
 845
 846         ePtr<iDVBFrontendParameters> feparm;
 847
 848         if (!m_list)
 849         {
 850                 eDebug("no channel list set!");
 851                 goto error;
 852         }
 853
 854         if (m_list->getChannelFrontendData(channelid, feparm))
 855         {
 856                 eDebug("channel not found!");
 857                 goto error;
 858         }
 859
 860         ret = canAllocateFrontend(feparm, simulate);
 861
 862 error:
 863         if (decremented_fe_usecount)
 864                 ++(*decremented_fe_usecount);
 865         if (decremented_cached_channel_fe_usecount)
 866                 ++(*decremented_cached_channel_fe_usecount);
 867
 868         return ret;
 869 }
 870
 871 bool eDVBResourceManager::canMeasureFrontendInputPower()
 872 {
 873         for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
 874         {
 875                 return i->m_frontend->readInputpower() >= 0;
 876         }
 877         return false;
 878 }
 879
 880 class eDVBChannelFilePush: public eFilePushThread
 881 {
 882 public:
 883         eDVBChannelFilePush() { setIFrameSearch(0); setTimebaseChange(0); }
 884         void setIFrameSearch(int enabled) { m_iframe_search = enabled; m_iframe_state = 0; }
 885
 886                         /* "timebase change" is for doing trickmode playback at an exact speed, even when pictures are skipped. */
 887                         /* you need to set it to 1/16 if you want 16x playback, for example. you need video master sync. */
 888         void setTimebaseChange(int ratio) { m_timebase_change = ratio; } /* 16bit fixpoint, 0 for disable */
 889 protected:
 890         int m_iframe_search, m_iframe_state, m_pid;
 891         int m_timebase_change;
 892         int filterRecordData(const unsigned char *data, int len, size_t &current_span_remaining);
 893 };
 894
 895 int eDVBChannelFilePush::filterRecordData(const unsigned char *_data, int len, size_t &current_span_remaining)
 896 {
 897 #if 0
 898         if (m_timebase_change)
 899         {
 900                 eDebug("timebase change: %d", m_timebase_change);
 901                 int offset;
 902                 for (offset = 0; offset < len; offset += 188)
 903                 {
 904                         unsigned char *pkt = (unsigned char*)_data + offset;
 905                         if (pkt[1] & 0x40) /* pusi */
 906                         {
 907                                 if (pkt[3] & 0x20) // adaption field present?
 908                                         pkt += pkt[4] + 4 + 1;  /* skip adaption field and header */
 909                                 else
 910                                         pkt += 4; /* skip header */
 911                                 if (pkt[0] || pkt[1] || (pkt[2] != 1))
 912                                 {
 913                                         eWarning("broken startcode");
 914                                         continue;
 915                                 }
 916
 917                                 pts_t pts = 0;
 918
 919                                 if (pkt[7] & 0x80) // PTS present?
 920                                 {
 921                                         pts  = ((unsigned long long)(pkt[ 9]&0xE))  << 29;
 922                                         pts |= ((unsigned long long)(pkt[10]&0xFF)) << 22;
 923                                         pts |= ((unsigned long long)(pkt[11]&0xFE)) << 14;
 924                                         pts |= ((unsigned long long)(pkt[12]&0xFF)) << 7;
 925                                         pts |= ((unsigned long long)(pkt[13]&0xFE)) >> 1;
 926
 927 #if 0
 928                                         off_t off = 0;
 929                                         RESULT r = m_tstools.fixupPTS(off, pts);
 930                                         if (r)
 931                                                 eWarning("fixup PTS while trickmode playback failed.\n");
 932 #endif
 933
 934                                         int sec = pts / 90000;
 935                                         int frm = pts % 90000;
 936                                         int min = sec / 60;
 937                                         sec %= 60;
 938                                         int hr = min / 60;
 939                                         min %= 60;
 940                                         int d = hr / 24;
 941                                         hr %= 24;
 942
 943 //                                      eDebug("original, fixed pts: %016llx %d:%02d:%02d:%02d:%05d", pts, d, hr, min, sec, frm);
 944
 945                                         pts += 0x80000000LL;
 946                                         pts *= m_timebase_change;
 947                                         pts >>= 16;
 948
 949                                         sec = pts / 90000;
 950                                         frm = pts % 90000;
 951                                         min = sec / 60;
 952                                         sec %= 60;
 953                                         hr = min / 60;
 954                                         min %= 60;
 955                                         d = hr / 24;
 956                                         hr %= 24;
 957
 958 //                                      eDebug("new pts (after timebase change): %016llx %d:%02d:%02d:%02d:%05d", pts, d, hr, min, sec, frm);
 959
 960                                         pkt[9] &= ~0xE;
 961                                         pkt[10] = 0;
 962                                         pkt[11] &= ~1;
 963                                         pkt[12] = 0;
 964                                         pkt[13] &= ~1;
 965
 966                                         pkt[9]  |= (pts >> 29) & 0xE;
 967                                         pkt[10] |= (pts >> 22) & 0xFF;
 968                                         pkt[11] |= (pts >> 14) & 0xFE;
 969                                         pkt[12] |= (pts >> 7) & 0xFF;
 970                                         pkt[13] |= (pts << 1) & 0xFE;
 971                                 }
 972                         }
 973                 }
 974         }
 975 #endif
 976
 977 #if 1 /* not yet */
 978         if (!m_iframe_search)
 979                 return len;
 980
 981         unsigned char *data = (unsigned char*)_data; /* remove that const. we know what we are doing. */
 982
 983 //      eDebug("filterRecordData, size=%d (mod 188=%d), first byte is %02x", len, len %188, data[0]);
 984
 985         unsigned char *d = data;
 986         while ((d + 3 < data + len) && (d = (unsigned char*)memmem(d, data + len - d, "\x00\x00\x01", 3)))
 987         {
 988                 int offset = d - data;
 989                 int ts_offset = offset - offset % 188; /* offset to the start of TS packet */
 990                 unsigned char *ts = data + ts_offset;
 991                 int pid = ((ts[1] << 8) | ts[2]) & 0x1FFF;
 992
 993                 if ((d[3] == 0) && (m_pid == pid))  /* picture start */
 994                 {
 995                         int picture_type = (d[5] >> 3) & 7;
 996                         d += 4;
 997
 998 //                      eDebug("%d-frame at %d, offset in TS packet: %d, pid=%04x", picture_type, offset, offset % 188, pid);
 999
1000                         if (m_iframe_state == 1)
1001                         {
1002                                         /* we are allowing data, and stop allowing data on the next frame.
1003                                            we now found a frame. so stop here. */
1004                                 memset(data + offset, 0, 188 - (offset%188)); /* zero out rest of TS packet */
1005                                 current_span_remaining = 0;
1006                                 m_iframe_state = 0;
1007                                 unsigned char *fts = ts + 188;
1008                                 while (fts < (data + len))
1009                                 {
1010                                         fts[1] |= 0x1f;
1011                                         fts[2] |= 0xff; /* drop packet */
1012                                         fts += 188;
1013                                 }
1014
1015                                 return len; // ts_offset + 188; /* deliver this packet, but not more. */
1016                         } else
1017                         {
1018                                 if (picture_type != 1) /* we are only interested in I frames */
1019                                         continue;
1020
1021                                 unsigned char *fts = data;
1022                                 while (fts < ts)
1023                                 {
1024                                         fts[1] |= 0x1f;
1025                                         fts[2] |= 0xff; /* drop packet */
1026
1027                                         fts += 188;
1028                                 }
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) || m_tstools.getOffset(offset_out, pts_out))
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                                 eDebug("next ap is %llx\n", pts);
1327                                 pts = nextap;
1328                         }
1329                 }
1330
1331                 off_t offset = 0;
1332                 if (m_tstools.getOffset(offset, pts))
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 ((current_offset < -m_skipmode_m) && (m_skipmode_m < 0))
1407         {
1408                 eDebug("reached SOF");
1409                 m_skipmode_m = 0;
1410                 m_pvr_thread->sendEvent(eFilePushThread::evtUser);
1411         }
1412
1413         start = current_offset;
1414         size = max;
1415
1416         eDebug("END OF CUESHEET. (%08llx, %d)", start, size);
1417         return;
1418 }
1419
1420 void eDVBChannel::AddUse()
1421 {
1422         if (++m_use_count > 1 && m_state == state_last_instance)
1423         {
1424                 m_state = state_ok;
1425                 m_stateChanged(this);
1426         }
1427 }
1428
1429 void eDVBChannel::ReleaseUse()
1430 {
1431         if (!--m_use_count)
1432         {
1433                 m_state = state_release;
1434                 m_stateChanged(this);
1435         }
1436         else if (m_use_count == 1)
1437         {
1438                 m_state = state_last_instance;
1439                 m_stateChanged(this);
1440         }
1441 }
1442
1443 RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid, ePtr<iDVBFrontendParameters> &feparm)
1444 {
1445         if (m_channel_id)
1446                 m_mgr->removeChannel(this);
1447
1448         if (!channelid)
1449                 return 0;
1450
1451         if (!m_frontend)
1452         {
1453                 eDebug("no frontend to tune!");
1454                 return -ENODEV;
1455         }
1456
1457         m_channel_id = channelid;
1458         m_mgr->addChannel(channelid, this);
1459         m_state = state_tuning;
1460                         /* if tuning fails, shutdown the channel immediately. */
1461         int res;
1462         res = m_frontend->get().tune(*feparm);
1463         m_current_frontend_parameters = feparm;
1464
1465         if (res)
1466         {
1467                 m_state = state_release;
1468                 m_stateChanged(this);
1469                 return res;
1470         }
1471
1472         return 0;
1473 }
1474
1475 RESULT eDVBChannel::connectStateChange(const Slot1<void,iDVBChannel*> &stateChange, ePtr<eConnection> &connection)
1476 {
1477         connection = new eConnection((iDVBChannel*)this, m_stateChanged.connect(stateChange));
1478         return 0;
1479 }
1480
1481 RESULT eDVBChannel::connectEvent(const Slot2<void,iDVBChannel*,int> &event, ePtr<eConnection> &connection)
1482 {
1483         connection = new eConnection((iDVBChannel*)this, m_event.connect(event));
1484         return 0;
1485 }
1486
1487 RESULT eDVBChannel::getState(int &state)
1488 {
1489         state = m_state;
1490         return 0;
1491 }
1492
1493 RESULT eDVBChannel::setCIRouting(const eDVBCIRouting &routing)
1494 {
1495         return -1;
1496 }
1497
1498 void eDVBChannel::SDTready(int result)
1499 {
1500         ePyObject args = PyTuple_New(2), ret;
1501         bool ok=false;
1502         if (!result)
1503         {
1504                 for (std::vector<ServiceDescriptionSection*>::const_iterator i = m_SDT->getSections().begin(); i != m_SDT->getSections().end(); ++i)
1505                 {
1506                         ok = true;
1507                         PyTuple_SET_ITEM(args, 0, PyInt_FromLong((*i)->getTransportStreamId()));
1508                         PyTuple_SET_ITEM(args, 1, PyInt_FromLong((*i)->getOriginalNetworkId()));
1509                         break;
1510                 }
1511         }
1512         if (!ok)
1513         {
1514                 PyTuple_SET_ITEM(args, 0, Py_None);
1515                 PyTuple_SET_ITEM(args, 1, Py_None);
1516                 Py_INCREF(Py_None);
1517                 Py_INCREF(Py_None);
1518         }
1519         ret = PyObject_CallObject(m_tsid_onid_callback, args);
1520         if (ret)
1521                 Py_DECREF(ret);
1522         Py_DECREF(args);
1523         Py_DECREF(m_tsid_onid_callback);
1524         m_tsid_onid_callback = ePyObject();
1525         m_tsid_onid_demux = 0;
1526         m_SDT = 0;
1527 }
1528
1529 RESULT eDVBChannel::requestTsidOnid(ePyObject callback)
1530 {
1531         if (PyCallable_Check(callback))
1532         {
1533                 if (!getDemux(m_tsid_onid_demux, 0))
1534                 {
1535                         m_SDT = new eTable<ServiceDescriptionSection>;
1536                         CONNECT(m_SDT->tableReady, eDVBChannel::SDTready);
1537                         if (m_SDT->start(m_tsid_onid_demux, eDVBSDTSpec()))
1538                         {
1539                                 m_tsid_onid_demux = 0;
1540                                 m_SDT = 0;
1541                         }
1542                         else
1543                         {
1544                                 Py_INCREF(callback);
1545                                 m_tsid_onid_callback = callback;
1546                                 return 0;
1547                         }
1548                 }
1549         }
1550         return -1;
1551 }
1552
1553 RESULT eDVBChannel::getDemux(ePtr<iDVBDemux> &demux, int cap)
1554 {
1555         ePtr<eDVBAllocatedDemux> &our_demux = (cap & capDecode) ? m_decoder_demux : m_demux;
1556
1557         if (!our_demux)
1558         {
1559                 demux = 0;
1560
1561                 if (m_mgr->allocateDemux(m_frontend ? (eDVBRegisteredFrontend*)*m_frontend : (eDVBRegisteredFrontend*)0, our_demux, cap))
1562                         return -1;
1563         }
1564
1565         demux = *our_demux;
1566                 /* don't hold a reference to the decoding demux, we don't need it. */
1567
1568                 /* FIXME: by dropping the 'allocated demux' in favour of the 'iDVBDemux',
1569                    the refcount is lost. thus, decoding demuxes are never allocated.
1570
1571                    this poses a big problem for PiP. */
1572         if (cap & capDecode)
1573                 our_demux = 0;
1574         return 0;
1575 }
1576
1577 RESULT eDVBChannel::getFrontend(ePtr<iDVBFrontend> &frontend)
1578 {
1579         frontend = 0;
1580         if (!m_frontend)
1581                 return -ENODEV;
1582         frontend = &m_frontend->get();
1583         if (frontend)
1584                 return 0;
1585         return -ENODEV;
1586 }
1587
1588 RESULT eDVBChannel::getCurrentFrontendParameters(ePtr<iDVBFrontendParameters> &param)
1589 {
1590         param = m_current_frontend_parameters;
1591         return 0;
1592 }
1593
1594 RESULT eDVBChannel::playFile(const char *file)
1595 {
1596         ASSERT(!m_frontend);
1597         if (m_pvr_thread)
1598         {
1599                 m_pvr_thread->stop();
1600                 delete m_pvr_thread;
1601                 m_pvr_thread = 0;
1602         }
1603
1604         m_tstools.openFile(file);
1605
1606                 /* DON'T EVEN THINK ABOUT FIXING THIS. FIX THE ATI SOURCES FIRST,
1607                    THEN DO A REAL FIX HERE! */
1608
1609                 /* (this codepath needs to be improved anyway.) */
1610 #if HAVE_DVB_API_VERSION < 3
1611         m_pvr_fd_dst = open("/dev/pvr", O_WRONLY);
1612 #else
1613         m_pvr_fd_dst = open("/dev/misc/pvr", O_WRONLY);
1614 #endif
1615         if (m_pvr_fd_dst < 0)
1616         {
1617                 eDebug("can't open /dev/misc/pvr - you need to buy the new(!) $$$ box! (%m)"); // or wait for the driver to be improved.
1618                 return -ENODEV;
1619         }
1620
1621         m_pvr_thread = new eDVBChannelFilePush();
1622         m_pvr_thread->enablePVRCommit(1);
1623         m_pvr_thread->setStreamMode(1);
1624         m_pvr_thread->setScatterGather(this);
1625
1626         if (m_pvr_thread->start(file, m_pvr_fd_dst))
1627         {
1628                 delete m_pvr_thread;
1629                 m_pvr_thread = 0;
1630                 eDebug("can't open PVR file %s (%m)", file);
1631                 return -ENOENT;
1632         }
1633         CONNECT(m_pvr_thread->m_event, eDVBChannel::pvrEvent);
1634
1635         m_state = state_ok;
1636         m_stateChanged(this);
1637
1638         return 0;
1639 }
1640
1641 void eDVBChannel::stopFile()
1642 {
1643         if (m_pvr_thread)
1644         {
1645                 m_pvr_thread->stop();
1646                 ::close(m_pvr_fd_dst);
1647                 delete m_pvr_thread;
1648                 m_pvr_thread = 0;
1649         }
1650 }
1651
1652 void eDVBChannel::setCueSheet(eCueSheet *cuesheet)
1653 {
1654         m_conn_cueSheetEvent = 0;
1655         m_cue = cuesheet;
1656         if (m_cue)
1657                 m_cue->connectEvent(slot(*this, &eDVBChannel::cueSheetEvent), m_conn_cueSheetEvent);
1658 }
1659
1660 RESULT eDVBChannel::getLength(pts_t &len)
1661 {
1662         return m_tstools.calcLen(len);
1663 }
1664
1665 RESULT eDVBChannel::getCurrentPosition(iDVBDemux *decoding_demux, pts_t &pos, int mode)
1666 {
1667         if (!decoding_demux)
1668                 return -1;
1669
1670         pts_t now;
1671
1672         int r;
1673
1674         if (mode == 0) /* demux */
1675         {
1676                 r = decoding_demux->getSTC(now, 0);
1677                 if (r)
1678                 {
1679                         eDebug("demux getSTC failed");
1680                         return -1;
1681                 }
1682         } else
1683                 now = pos; /* fixup supplied */
1684
1685         off_t off = 0; /* TODO: fixme */
1686         r = m_tstools.fixupPTS(off, now);
1687         if (r)
1688         {
1689                 eDebug("fixup PTS failed");
1690                 return -1;
1691         }
1692
1693         pos = now;
1694
1695         return 0;
1696 }
1697
1698 void eDVBChannel::flushPVR(iDVBDemux *decoding_demux)
1699 {
1700                         /* when seeking, we have to ensure that all buffers are flushed.
1701                            there are basically 3 buffers:
1702                            a.) the filepush's internal buffer
1703                            b.) the PVR buffer (before demux)
1704                            c.) the ratebuffer (after demux)
1705
1706                            it's important to clear them in the correct order, otherwise
1707                            the ratebuffer (for example) would immediately refill from
1708                            the not-yet-flushed PVR buffer.
1709                         */
1710
1711         m_pvr_thread->pause();
1712                 /* flush internal filepush buffer */
1713         m_pvr_thread->flush();
1714                 /* HACK: flush PVR buffer */
1715         ::ioctl(m_pvr_fd_dst, 0);
1716
1717                 /* flush ratebuffers (video, audio) */
1718         if (decoding_demux)
1719                 decoding_demux->flush();
1720
1721                 /* demux will also flush all decoder.. */
1722                 /* resume will re-query the SG */
1723         m_pvr_thread->resume();
1724 }
1725
1726 DEFINE_REF(eCueSheet);
1727
1728 eCueSheet::eCueSheet()
1729 {
1730         m_skipmode_ratio = 0;
1731 }
1732
1733 void eCueSheet::seekTo(int relative, const pts_t &pts)
1734 {
1735         m_lock.WrLock();
1736         m_seek_requests.push_back(std::pair<int, pts_t>(relative, pts));
1737         m_lock.Unlock();
1738         m_event(evtSeek);
1739 }
1740
1741 void eCueSheet::clear()
1742 {
1743         m_lock.WrLock();
1744         m_spans.clear();
1745         m_lock.Unlock();
1746 }
1747
1748 void eCueSheet::addSourceSpan(const pts_t &begin, const pts_t &end)
1749 {
1750         assert(begin < end);
1751         m_lock.WrLock();
1752         m_spans.push_back(std::pair<pts_t, pts_t>(begin, end));
1753         m_lock.Unlock();
1754 }
1755
1756 void eCueSheet::commitSpans()
1757 {
1758         m_event(evtSpanChanged);
1759 }
1760
1761 void eCueSheet::setSkipmode(const pts_t &ratio)
1762 {
1763         m_lock.WrLock();
1764         m_skipmode_ratio = ratio;
1765         m_lock.Unlock();
1766         m_event(evtSkipmode);
1767 }
1768
1769 void eCueSheet::setDecodingDemux(iDVBDemux *demux, iTSMPEGDecoder *decoder)
1770 {
1771         m_decoding_demux = demux;
1772         m_decoder = decoder;
1773 }
1774
1775 RESULT eCueSheet::connectEvent(const Slot1<void,int> &event, ePtr<eConnection> &connection)
1776 {
1777         connection = new eConnection(this, m_event.connect(event));
1778         return 0;
1779 }