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[enigma2.git] / lib / dvb / dvb.cpp
index 5bd8fe6af44eeb3ca232db164ae6eb0784bc0e03..ff3e4712b8ecbf6564889254031a70fa131455c9 100644 (file)
@@ -42,6 +42,16 @@ DEFINE_REF(eDVBResourceManager);
 
 eDVBResourceManager *eDVBResourceManager::instance;
 
+RESULT eDVBResourceManager::getInstance(ePtr<eDVBResourceManager> &ptr)
+{
+       if (instance)
+       {
+               ptr = instance;
+               return 0;
+       }
+       return -1;
+}
+
 eDVBResourceManager::eDVBResourceManager()
        :m_releaseCachedChannelTimer(eApp)
 {
@@ -68,6 +78,14 @@ eDVBResourceManager::eDVBResourceManager()
        CONNECT(m_releaseCachedChannelTimer.timeout, eDVBResourceManager::releaseCachedChannel);
 }
 
+void eDVBResourceManager::feStateChanged()
+{
+       int mask=0;
+       for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
+               if (i->m_inuse)
+                       mask |= ( 1 << i->m_frontend->getID() );
+       /* emit */ frontendUseMaskChanged(mask);
+}
 
 DEFINE_REF(eDVBAdapterLinux);
 eDVBAdapterLinux::eDVBAdapterLinux(int nr): m_nr(nr)
@@ -197,14 +215,28 @@ void eDVBResourceManager::addAdapter(iDVBAdapter *adapter)
                        m_demux.push_back(new eDVBRegisteredDemux(demux, adapter));
        }
 
+       ePtr<eDVBRegisteredFrontend> prev_dvbt_frontend;
        for (i=0; i<num_fe; ++i)
        {
                ePtr<eDVBFrontend> frontend;
-
                if (!adapter->getFrontend(frontend, i))
                {
+                       int frontendType=0;
+                       frontend->getFrontendType(frontendType);
+                       eDVBRegisteredFrontend *new_fe = new eDVBRegisteredFrontend(frontend, adapter);
+                       CONNECT(new_fe->stateChanged, eDVBResourceManager::feStateChanged);
+                       m_frontend.push_back(new_fe);
                        frontend->setSEC(m_sec);
-                       m_frontend.push_back(new eDVBRegisteredFrontend(frontend, adapter));
+                       // we must link all dvb-t frontends ( for active antenna voltage )
+                       if (frontendType == iDVBFrontend::feTerrestrial)
+                       {
+                               if (prev_dvbt_frontend)
+                               {
+                                       prev_dvbt_frontend->m_frontend->setData(eDVBFrontend::LINKED_NEXT_PTR, (int)new_fe);
+                                       frontend->setData(eDVBFrontend::LINKED_PREV_PTR, (int)&(*prev_dvbt_frontend));
+                               }
+                               prev_dvbt_frontend = new_fe;
+                       }
                }
        }
 }
@@ -263,12 +295,23 @@ RESULT eDVBResourceManager::allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBA
        int n=0;
                /* FIXME: hardware demux policy */
        if (!(cap & iDVBChannel::capDecode))
-               ++i, ++n;
+       {
+               if (m_demux.size() > 2)  /* assumed to be true, otherwise we have lost anyway */
+               {
+                       ++i, ++n;
+                       ++i, ++n;
+               }
+       }
        
        for (; i != m_demux.end(); ++i, ++n)
-               if ((!i->m_inuse) && ((!fe) || (i->m_adapter == fe->m_adapter)))
+       {
+               int is_decode = n < 2;
+               
+               int in_use = is_decode ? (i->m_demux->getRefCount() != 2) : i->m_inuse;
+               
+               if ((!in_use) && ((!fe) || (i->m_adapter == fe->m_adapter)))
                {
-                       if ((cap & iDVBChannel::capDecode) && n)
+                       if ((cap & iDVBChannel::capDecode) && !is_decode)
                                continue;
                        
                        demux = new eDVBAllocatedDemux(i);
@@ -278,6 +321,7 @@ RESULT eDVBResourceManager::allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBA
                                demux->get().setSourcePVR(0);
                        return 0;
                }
+       }
        eDebug("demux not found");
        return -1;
 }
@@ -422,9 +466,16 @@ RESULT eDVBResourceManager::allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel)
 {
        ePtr<eDVBAllocatedDemux> demux;
 
+       if (m_cached_channel && m_releaseCachedChannelTimer.isActive())
+       {
+               m_cached_channel_state_changed_conn.disconnect();
+               m_cached_channel=0;
+               m_releaseCachedChannelTimer.stop();
+       }
+
        eDVBChannel *ch;
        ch = new eDVBChannel(this, 0);
-       
+
        channel = ch;
        return 0;
 }
@@ -507,7 +558,11 @@ bool eDVBResourceManager::canAllocateChannel(const eDVBChannelID &channelid, con
                if (i->m_channel_id == ignore)
                {
                        eDVBChannel *channel = (eDVBChannel*) &(*i->m_channel);
-                       if (channel == &(*m_cached_channel) ? channel->getUseCount() == 2 : channel->getUseCount() == 1)  // channel only used once..
+                       // one eUsePtr<iDVBChannel> is used in eDVBServicePMTHandler
+                       // another on eUsePtr<iDVBChannel> is used in the eDVBScan instance used in eDVBServicePMTHandler (for SDT scan)
+                       // so we must check here if usecount is 3 (when the channel is equal to the cached channel)
+                       // or 2 when the cached channel is not equal to the compared channel
+                       if (channel == &(*m_cached_channel) ? channel->getUseCount() == 3 : channel->getUseCount() == 2)  // channel only used once..
                        {
                                ePtr<iDVBFrontend> fe;
                                if (!i->m_channel->getFrontend(fe))
@@ -626,11 +681,11 @@ void eDVBChannel::frontendStateChanged(iDVBFrontend*fe)
        } else if (state == iDVBFrontend::stateLostLock)
        {
                        /* on managed channels, we try to retune in order to re-acquire lock. */
-               if (m_feparm)
+               if (m_current_frontend_parameters)
                {
                        eDebug("OURSTATE: lost lock, trying to retune");
                        ourstate = state_tuning;
-                       m_frontend->get().tune(*m_feparm);
+                       m_frontend->get().tune(*m_current_frontend_parameters);
                } else
                        /* on unmanaged channels, we don't do this. the client will do this. */
                {
@@ -767,9 +822,9 @@ void eDVBChannel::getNextSourceSpan(off_t current_offset, size_t bytes_read, off
                int relative = seek.first;
                pts_t pts = seek.second;
 
+               pts_t now = 0;
                if (relative)
                {
-                       pts_t now;
                        if (!m_cue->m_decoder)
                        {
                                eDebug("no decoder - can't seek relative");
@@ -785,11 +840,33 @@ void eDVBChannel::getNextSourceSpan(off_t current_offset, size_t bytes_read, off
                                eDebug("seekTo: getCurrentPosition failed!");
                                continue;
                        }
+               }
+               
+               if (relative == 1) /* pts relative */
+               {
                        pts += now;
+                       if (pts < 0)
+                               pts = 0;
                }
 
-               if (pts < 0)
-                       pts = 0;
+               if (relative != 2)
+                       if (pts < 0)
+                               pts = 0;
+               
+               if (relative == 2) /* AP relative */
+               {
+                       eDebug("AP relative seeking: %lld, at %lld", pts, now);
+                       pts_t nextap;
+                       if (m_tstools.getNextAccessPoint(nextap, now, pts))
+                       {
+                               pts = now;
+                               eDebug("AP relative seeking failed!");
+                       } else
+                       {
+                               eDebug("next ap is %llx\n", pts);
+                               pts = nextap;
+                       }
+               }
                
                off_t offset = 0;
                if (m_tstools.getOffset(offset, pts))
@@ -804,10 +881,12 @@ void eDVBChannel::getNextSourceSpan(off_t current_offset, size_t bytes_read, off
                if ((current_offset >= i->first) && (current_offset < i->second))
                {
                        start = current_offset;
-                       size = i->second - current_offset;
-                       if (size > max)
+                               /* max can not exceed max(size_t). i->second - current_offset, however, can. */
+                       if ((i->second - current_offset) > max)
                                size = max;
-                       eDebug("HIT, %lld < %lld < %lld", i->first, current_offset, i->second);
+                       else
+                               size = i->second - current_offset;
+                       eDebug("HIT, %lld < %lld < %lld, size: %d", i->first, current_offset, i->second, size);
                        return;
                }
                if (current_offset < i->first)
@@ -817,9 +896,13 @@ void eDVBChannel::getNextSourceSpan(off_t current_offset, size_t bytes_read, off
                        {
                                        /* in normal playback, just start at the next zone. */
                                start = i->first;
-                               size = i->second - i->first;
-                               if (size > max)
+                               
+                                       /* size is not 64bit! */
+                               if ((i->second - i->first) > max)
                                        size = max;
+                               else
+                                       size = i->second - i->first;
+
                                eDebug("skip");
                                if (m_skipmode_m < 0)
                                {
@@ -833,12 +916,15 @@ void eDVBChannel::getNextSourceSpan(off_t current_offset, size_t bytes_read, off
                                        /* when skipping reverse, however, choose the zone before. */
                                --i;
                                eDebug("skip to previous block, which is %llx..%llx", i->first, i->second);
-                               size_t len = i->second - i->first;
-                               if (max > len)
-                                       max = len;
-                               start = i->second - max;
-                               size = max;
-                               eDebug("skipping to %llx, %d", start, size);
+                               size_t len;
+                               
+                               if ((i->second - i->first) > max)
+                                       len = max;
+                               else
+                                       len = i->second - i->first;
+
+                               start = i->second - len;
+                               eDebug("skipping to %llx, %d", start, len);
                        }
                        return;
                }
@@ -854,9 +940,6 @@ void eDVBChannel::getNextSourceSpan(off_t current_offset, size_t bytes_read, off
        start = current_offset;
        size = max;
        eDebug("END OF CUESHEET. (%08llx, %d)", start, size);
-       
-       if (size < 4096)
-               eFatal("blub");
        return;
 }
 
@@ -903,7 +986,7 @@ RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid, ePtr<iDVBFrontend
                        /* if tuning fails, shutdown the channel immediately. */
        int res;
        res = m_frontend->get().tune(*feparm);
-       m_feparm = feparm;
+       m_current_frontend_parameters = feparm;
        
        if (res)
        {
@@ -952,6 +1035,11 @@ RESULT eDVBChannel::getDemux(ePtr<iDVBDemux> &demux, int cap)
        
        demux = *our_demux;
                /* don't hold a reference to the decoding demux, we don't need it. */
+               
+               /* FIXME: by dropping the 'allocated demux' in favour of the 'iDVBDemux',
+                  the refcount is lost. thus, decoding demuxes are never allocated. 
+                  
+                  this poses a big problem for PiP. */
        if (cap & capDecode)
                our_demux = 0;
        return 0;
@@ -959,11 +1047,19 @@ RESULT eDVBChannel::getDemux(ePtr<iDVBDemux> &demux, int cap)
 
 RESULT eDVBChannel::getFrontend(ePtr<iDVBFrontend> &frontend)
 {
+       frontend = 0;
+       if (!m_frontend)
+               return -ENODEV;
        frontend = &m_frontend->get();
        if (frontend)
                return 0;
-       else
-               return -ENODEV;
+       return -ENODEV;
+}
+
+RESULT eDVBChannel::getCurrentFrontendParameters(ePtr<iDVBFrontendParameters> &param)
+{
+       param = m_current_frontend_parameters;
+       return 0;
 }
 
 RESULT eDVBChannel::playFile(const char *file)
@@ -992,25 +1088,23 @@ RESULT eDVBChannel::playFile(const char *file)
                eDebug("can't open /dev/misc/pvr - you need to buy the new(!) $$$ box! (%m)"); // or wait for the driver to be improved.
                return -ENODEV;
        }
-       
-       m_pvr_fd_src = open(file, O_RDONLY|O_LARGEFILE);
-       if (m_pvr_fd_src < 0)
-       {
-               eDebug("can't open PVR m_pvr_fd_src file %s (%m)", file);
-               close(m_pvr_fd_dst);
-               return -ENOENT;
-       }
-       
-       m_state = state_ok;
-       m_stateChanged(this);
-       
+
        m_pvr_thread = new eFilePushThread();
        m_pvr_thread->enablePVRCommit(1);
        m_pvr_thread->setScatterGather(this);
 
-       m_pvr_thread->start(m_pvr_fd_src, m_pvr_fd_dst);
+       if (m_pvr_thread->start(file, m_pvr_fd_dst))
+       {
+               delete m_pvr_thread;
+               m_pvr_thread = 0;
+               eDebug("can't open PVR file %s (%m)", file);
+               return -ENOENT;
+       }
        CONNECT(m_pvr_thread->m_event, eDVBChannel::pvrEvent);
 
+       m_state = state_ok;
+       m_stateChanged(this);
+
        return 0;
 }
 
@@ -1019,7 +1113,6 @@ void eDVBChannel::stopFile()
        if (m_pvr_thread)
        {
                m_pvr_thread->stop();
-               ::close(m_pvr_fd_src);
                ::close(m_pvr_fd_dst);
                delete m_pvr_thread;
                m_pvr_thread = 0;