retune on lostlock is now working :)
[enigma2.git] / lib / dvb / dvb.cpp
index 7156dbb88b7508304dc81dcbb34e2ee9c58fccc1..32e19308fb561f4a230b5dfe8603aaec986eacb3 100644 (file)
@@ -18,12 +18,12 @@ DEFINE_REF(eDVBAllocatedFrontend);
 
 eDVBAllocatedFrontend::eDVBAllocatedFrontend(eDVBRegisteredFrontend *fe): m_fe(fe)
 {
-       m_fe->m_inuse++;
+       m_fe->inc_use();
 }
 
 eDVBAllocatedFrontend::~eDVBAllocatedFrontend()
 {
-       --m_fe->m_inuse;
+       m_fe->dec_use();
 }
 
 DEFINE_REF(eDVBAllocatedDemux);
@@ -46,7 +46,7 @@ eDVBResourceManager::eDVBResourceManager()
 {
        avail = 1;
        busy = 0;
-       m_sec = new eDVBSatelliteEquipmentControl;
+       m_sec = new eDVBSatelliteEquipmentControl(m_frontend);
        if (!instance)
                instance = this;
                
@@ -197,23 +197,27 @@ void eDVBResourceManager::addAdapter(iDVBAdapter *adapter)
        for (i=0; i<num_fe; ++i)
        {
                ePtr<eDVBFrontend> frontend;
+
                if (!adapter->getFrontend(frontend, i))
+               {
+                       frontend->setSEC(m_sec);
                        m_frontend.push_back(new eDVBRegisteredFrontend(frontend, adapter));
+               }
        }
 }
 
-RESULT eDVBResourceManager::allocateFrontend(const eDVBChannelID &chid, ePtr<eDVBAllocatedFrontend> &fe)
+RESULT eDVBResourceManager::allocateFrontend(ePtr<eDVBAllocatedFrontend> &fe, ePtr<iDVBFrontendParameters> &feparm)
 {
        ePtr<eDVBRegisteredFrontend> best;
        int bestval = 0;
-       
+
        for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
                if (!i->m_inuse)
                {
-                       int c = i->m_frontend->isCompatibleWith(chid);
+                       int c = i->m_frontend->isCompatibleWith(feparm);
                        if (c > bestval)
                        {
-                               c = bestval;
+                               bestval = c;
                                best = i;
                        }
                }
@@ -229,6 +233,19 @@ RESULT eDVBResourceManager::allocateFrontend(const eDVBChannelID &chid, ePtr<eDV
        return -1;
 }
 
+RESULT eDVBResourceManager::allocateFrontendByIndex(ePtr<eDVBAllocatedFrontend> &fe, int nr)
+{
+       for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i, --nr)
+               if ((!nr) && !i->m_inuse)
+               {
+                       fe = new eDVBAllocatedFrontend(i);
+                       return 0;
+               }
+       
+       fe = 0;
+       return -1;
+}
+
 RESULT eDVBResourceManager::allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBAllocatedDemux> &demux, int cap)
 {
                /* find first unused demux which is on same adapter as frontend (or any, if PVR)
@@ -277,11 +294,22 @@ RESULT eDVBResourceManager::getChannelList(ePtr<iDVBChannelList> &list)
                return -ENOENT;
 }
 
-
 RESULT eDVBResourceManager::allocateChannel(const eDVBChannelID &channelid, eUsePtr<iDVBChannel> &channel)
 {
                /* first, check if a channel is already existing. */
-       
+
+       if (m_cached_channel)
+       {
+               eDVBChannel *cache_chan = (eDVBChannel*)&(*m_cached_channel);
+               if(channelid==cache_chan->getChannelID())
+               {
+                       eDebug("use cached_channel");
+                       channel=m_cached_channel;
+                       return 0;
+               }
+               m_cached_channel=0;
+       }
+
 //     eDebug("allocate channel.. %04x:%04x", channelid.transport_stream_id.get(), channelid.original_network_id.get());
        for (std::list<active_channel>::iterator i(m_active_channels.begin()); i != m_active_channels.end(); ++i)
        {
@@ -294,59 +322,56 @@ RESULT eDVBResourceManager::allocateChannel(const eDVBChannelID &channelid, eUse
                }
        }
        
-               /* no currently available channel is tuned to this channelid. create a new one, if possible. */
-               
-               /* allocate a frontend. */
+       /* no currently available channel is tuned to this channelid. create a new one, if possible. */
+
+       if (!m_list)
+       {
+               eDebug("no channel list set!");
+               return -ENOENT;
+       }
+
+       ePtr<iDVBFrontendParameters> feparm;
+       if (m_list->getChannelFrontendData(channelid, feparm))
+       {
+               eDebug("channel not found!");
+               return -ENOENT;
+       }
+
+       /* allocate a frontend. */
        
        ePtr<eDVBAllocatedFrontend> fe;
        
-       if (allocateFrontend(channelid, fe))
+       if (allocateFrontend(fe, feparm))
                return errNoFrontend;
-       
-// will be allocated on demand:
-//     ePtr<eDVBAllocatedDemux> demux;
-//     
-//     if (allocateDemux(*fe, demux))
-//             return errNoDemux;
-       
+
        RESULT res;
        ePtr<eDVBChannel> ch;
        ch = new eDVBChannel(this, fe);
 
-       ePtr<iDVBFrontend> myfe;
-       if (!ch->getFrontend(myfe))
-               myfe->setSEC(m_sec);
-
-       res = ch->setChannel(channelid);
+       res = ch->setChannel(channelid, feparm);
        if (res)
        {
                channel = 0;
                return errChidNotFound;
        }
-       
-       channel = ch;
+       m_cached_channel = channel = ch;
+
        return 0;
 }
 
-RESULT eDVBResourceManager::allocateRawChannel(eUsePtr<iDVBChannel> &channel)
+RESULT eDVBResourceManager::allocateRawChannel(eUsePtr<iDVBChannel> &channel, int frontend_index)
 {
        ePtr<eDVBAllocatedFrontend> fe;
-       
-       if (allocateFrontend(eDVBChannelID(), fe))
+
+       if (m_cached_channel)
+               m_cached_channel=0;
+
+       if (allocateFrontendByIndex(fe, frontend_index))
                return errNoFrontend;
        
-//     ePtr<eDVBAllocatedDemux> demux;
-       //
-//     if (allocateDemux(*fe, demux))
-//             return errNoDemux;
-       
        eDVBChannel *ch;
        ch = new eDVBChannel(this, fe);
 
-       ePtr<iDVBFrontend> myfe;
-       if (!ch->getFrontend(myfe))
-               myfe->setSEC(m_sec);
-
        channel = ch;
        return 0;
 }
@@ -355,10 +380,10 @@ RESULT eDVBResourceManager::allocateRawChannel(eUsePtr<iDVBChannel> &channel)
 RESULT eDVBResourceManager::allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel)
 {
        ePtr<eDVBAllocatedDemux> demux;
-       
-//     if (allocateDemux(0, demux))
-//             return errNoDemux;
-       
+
+       if (m_cached_channel)
+               m_cached_channel=0;
+
        eDVBChannel *ch;
        ch = new eDVBChannel(this, 0);
        
@@ -397,6 +422,128 @@ RESULT eDVBResourceManager::connectChannelAdded(const Slot1<void,eDVBChannel*> &
        return 0;
 }
 
+bool eDVBResourceManager::canAllocateFrontend(ePtr<iDVBFrontendParameters> &feparm)
+{
+       ePtr<eDVBRegisteredFrontend> best;
+       int bestval = 0;
+
+       for (eSmartPtrList<eDVBRegisteredFrontend>::iterator i(m_frontend.begin()); i != m_frontend.end(); ++i)
+               if (!i->m_inuse)
+               {
+                       int c = i->m_frontend->isCompatibleWith(feparm);
+                       if (c > bestval)
+                               bestval = c;
+               }
+
+       return bestval>0;
+}
+
+bool eDVBResourceManager::canAllocateChannel(const eDVBChannelID &channelid, const eDVBChannelID& ignore)
+{
+       bool ret=true;
+       if (m_cached_channel)
+       {
+               eDVBChannel *cache_chan = (eDVBChannel*)&(*m_cached_channel);
+               if(channelid==cache_chan->getChannelID())
+                       return ret;
+       }
+
+               /* first, check if a channel is already existing. */
+//     eDebug("allocate channel.. %04x:%04x", channelid.transport_stream_id.get(), channelid.original_network_id.get());
+       for (std::list<active_channel>::iterator i(m_active_channels.begin()); i != m_active_channels.end(); ++i)
+       {
+//             eDebug("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
+               if (i->m_channel_id == channelid)
+               {
+//                     eDebug("found shared channel..");
+                       return ret;
+               }
+       }
+
+       int *decremented_cached_channel_fe_usecount=NULL,
+               *decremented_fe_usecount=NULL;
+
+       for (std::list<active_channel>::iterator i(m_active_channels.begin()); i != m_active_channels.end(); ++i)
+       {
+//             eDebug("available channel.. %04x:%04x", i->m_channel_id.transport_stream_id.get(), i->m_channel_id.original_network_id.get());
+               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..
+                       {
+                               ePtr<iDVBFrontend> fe;
+                               if (!i->m_channel->getFrontend(fe))
+                               {
+                                       for (eSmartPtrList<eDVBRegisteredFrontend>::iterator ii(m_frontend.begin()); ii != m_frontend.end(); ++ii)
+                                       {
+                                               if ( &(*fe) == &(*ii->m_frontend) )
+                                               {
+                                                       --ii->m_inuse;
+                                                       decremented_fe_usecount = &ii->m_inuse;
+                                                       if (channel == &(*m_cached_channel))
+                                                               decremented_cached_channel_fe_usecount = decremented_fe_usecount;
+                                                       break;
+                                               }
+                                       }
+                               }
+                       }
+                       break;
+               }
+       }
+
+       if (!decremented_cached_channel_fe_usecount)
+       {
+               if (m_cached_channel)
+               {
+                       eDVBChannel *channel = (eDVBChannel*) &(*m_cached_channel);
+                       if (channel->getUseCount() == 1)
+                       {
+                               ePtr<iDVBFrontend> fe;
+                               if (!channel->getFrontend(fe))
+                               {
+                                       for (eSmartPtrList<eDVBRegisteredFrontend>::iterator ii(m_frontend.begin()); ii != m_frontend.end(); ++ii)
+                                       {
+                                               if ( &(*fe) == &(*ii->m_frontend) )
+                                               {
+                                                       --ii->m_inuse;
+                                                       decremented_cached_channel_fe_usecount = &ii->m_inuse;
+                                                       break;
+                                               }
+                                       }
+                               }
+                       }
+               }
+       }
+       else
+               decremented_cached_channel_fe_usecount=NULL;
+
+       ePtr<iDVBFrontendParameters> feparm;
+
+       if (!m_list)
+       {
+               eDebug("no channel list set!");
+               ret = false;
+               goto error;
+       }
+
+       if (m_list->getChannelFrontendData(channelid, feparm))
+       {
+               eDebug("channel not found!");
+               ret = false;
+               goto error;
+       }
+
+       ret = canAllocateFrontend(feparm);
+
+error:
+       if (decremented_fe_usecount)
+               ++(*decremented_fe_usecount);
+       if (decremented_cached_channel_fe_usecount)
+               ++(*decremented_cached_channel_fe_usecount);
+
+       return ret;
+}
+
 DEFINE_REF(eDVBChannel);
 
 eDVBChannel::eDVBChannel(eDVBResourceManager *mgr, eDVBAllocatedFrontend *frontend): m_state(state_idle), m_mgr(mgr)
@@ -444,8 +591,9 @@ void eDVBChannel::frontendStateChanged(iDVBFrontend*fe)
                ourstate = state_tuning;
        } else if (state == iDVBFrontend::stateLostLock)
        {
-               eDebug("OURSTATE: lost lock");
-               ourstate = state_unavailable;
+               eDebug("OURSTATE: lost lock.. retune");
+               ourstate = state_tuning;
+               m_frontend->get().tune(*m_feparm);
        } else if (state == iDVBFrontend::stateFailed)
        {
                eDebug("OURSTATE: failed");
@@ -460,6 +608,17 @@ void eDVBChannel::frontendStateChanged(iDVBFrontend*fe)
        }
 }
 
+void eDVBChannel::pvrEvent(int event)
+{
+       switch (event)
+       {
+       case eFilePushThread::evtEOF:
+               eDebug("eDVBChannel: End of file!");
+               m_event(this, evtEOF);
+               break;
+       }
+}
+
 void eDVBChannel::AddUse()
 {
        ++m_use_count;
@@ -474,7 +633,7 @@ void eDVBChannel::ReleaseUse()
        }
 }
 
-RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid)
+RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid, ePtr<iDVBFrontendParameters> &feparm)
 {
        if (m_channel_id)
                m_mgr->removeChannel(this);
@@ -482,24 +641,6 @@ RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid)
        if (!channelid)
                return 0;
 
-       ePtr<iDVBChannelList> list;
-       
-       if (m_mgr->getChannelList(list))
-       {
-               eDebug("no channel list set!");
-               return -ENOENT;
-       }
-       
-       eDebug("tuning to chid: ns: %08x tsid %04x onid %04x",
-               channelid.dvbnamespace.get(), channelid.transport_stream_id.get(), channelid.original_network_id.get());
-
-       ePtr<iDVBFrontendParameters> feparm;
-       if (list->getChannelFrontendData(channelid, feparm))
-       {
-               eDebug("channel not found!");
-               return -ENOENT;
-       }
-       
        if (!m_frontend)
        {
                eDebug("no frontend to tune!");
@@ -512,6 +653,7 @@ RESULT eDVBChannel::setChannel(const eDVBChannelID &channelid)
                        /* if tuning fails, shutdown the channel immediately. */
        int res;
        res = m_frontend->get().tune(*feparm);
+       m_feparm = feparm;
        
        if (res)
        {
@@ -529,6 +671,12 @@ RESULT eDVBChannel::connectStateChange(const Slot1<void,iDVBChannel*> &stateChan
        return 0;
 }
 
+RESULT eDVBChannel::connectEvent(const Slot2<void,iDVBChannel*,int> &event, ePtr<eConnection> &connection)
+{
+       connection = new eConnection((iDVBChannel*)this, m_event.connect(event));
+       return 0;
+}
+
 RESULT eDVBChannel::getState(int &state)
 {
        state = m_state;
@@ -542,7 +690,6 @@ RESULT eDVBChannel::setCIRouting(const eDVBCIRouting &routing)
 
 RESULT eDVBChannel::getDemux(ePtr<iDVBDemux> &demux, int cap)
 {
-       eDebug("get %d demux", cap);
        ePtr<eDVBAllocatedDemux> &our_demux = (cap & capDecode) ? m_decoder_demux : m_demux;
        
        if (!our_demux)
@@ -551,14 +698,12 @@ RESULT eDVBChannel::getDemux(ePtr<iDVBDemux> &demux, int cap)
                
                if (m_mgr->allocateDemux(m_frontend ? (eDVBRegisteredFrontend*)*m_frontend : (eDVBRegisteredFrontend*)0, our_demux, cap))
                        return -1;
-               
        }
        
        demux = *our_demux;
+               /* don't hold a reference to the decoding demux, we don't need it. */
        if (cap & capDecode)
-       {
                our_demux = 0;
-       }
        return 0;
 }
 
@@ -590,11 +735,11 @@ RESULT eDVBChannel::playFile(const char *file)
        m_pvr_fd_dst = open("/dev/misc/pvr", O_WRONLY);
        if (m_pvr_fd_dst < 0)
        {
-               eDebug("can't open /dev/misc/pvr - you need to buy the new(!) $$$ box! (%m)");
+               eDebug("can't open /dev/misc/pvr - you need to buy the new(!) $$$ box! (%m)"); // or wait for the driver to be improved.
                return -ENODEV;
        }
        
-       m_pvr_fd_src = open(file, O_RDONLY);
+       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);
@@ -606,7 +751,9 @@ RESULT eDVBChannel::playFile(const char *file)
        m_stateChanged(this);
        
        m_pvr_thread = new eFilePushThread();
+       m_pvr_thread->enablePVRCommit(1);
        m_pvr_thread->start(m_pvr_fd_src, m_pvr_fd_dst);
+       CONNECT(m_pvr_thread->m_event, eDVBChannel::pvrEvent);
 
        return 0;
 }
@@ -616,9 +763,9 @@ RESULT eDVBChannel::getLength(pts_t &len)
        return m_tstools.calcLen(len);
 }
 
-RESULT eDVBChannel::getCurrentPosition(pts_t &pos)
+RESULT eDVBChannel::getCurrentPosition(iDVBDemux *decoding_demux, pts_t &pos, int mode)
 {
-       if (!m_decoder_demux)
+       if (!decoding_demux)
                return -1;
        
        off_t begin = 0;
@@ -632,7 +779,8 @@ RESULT eDVBChannel::getCurrentPosition(pts_t &pos)
        
        pts_t now;
        
-       r = m_decoder_demux->get().getSTC(now);
+                       /* TODO: this is a gross hack. */
+       r = decoding_demux->getSTC(now, mode ? 128 : 0);
 
        if (r)
        {
@@ -657,7 +805,7 @@ RESULT eDVBChannel::getCurrentPosition(pts_t &pos)
        return 0;
 }
 
-RESULT eDVBChannel::seekTo(int relative, pts_t &pts)
+RESULT eDVBChannel::seekTo(iDVBDemux *decoding_demux, int relative, pts_t &pts)
 {
        int bitrate = m_tstools.calcBitrate(); /* in bits/s */
        
@@ -667,7 +815,7 @@ RESULT eDVBChannel::seekTo(int relative, pts_t &pts)
        if (relative)
        {
                pts_t now;
-               if (getCurrentPosition(now))
+               if (getCurrentPosition(decoding_demux, now, 0))
                {
                        eDebug("seekTo: getCurrentPosition failed!");
                        return -1;
@@ -680,11 +828,11 @@ RESULT eDVBChannel::seekTo(int relative, pts_t &pts)
        
        off_t offset = (pts * (pts_t)bitrate) / 8ULL / 90000ULL;
        
-       seekToPosition(offset);
+       seekToPosition(decoding_demux, offset);
        return 0;
 }
 
-RESULT eDVBChannel::seekToPosition(const off_t &r)
+RESULT eDVBChannel::seekToPosition(iDVBDemux *decoding_demux, const off_t &r)
 {
                        /* when seeking, we have to ensure that all buffers are flushed.
                           there are basically 3 buffers:
@@ -706,8 +854,8 @@ RESULT eDVBChannel::seekToPosition(const off_t &r)
        ::ioctl(m_pvr_fd_dst, 0);
        
                /* flush ratebuffers (video, audio) */
-       if (m_decoder_demux)
-               m_decoder_demux->get().flush();
+       if (decoding_demux)
+               decoding_demux->flush();
 
                /* demux will also flush all decoder.. */
        m_pvr_thread->seek(SEEK_SET, r);