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