X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/bcd7710513b1dcf713807530318c33832de962d6..2e3ac8d64148ce6fd4d932e882e89d9c6305e500:/lib/dvb/dvb.cpp

diff --git a/lib/dvb/dvb.cpp b/lib/dvb/dvb.cpp
index 4d78292a..0a5bb45e 100644
--- a/lib/dvb/dvb.cpp
+++ b/lib/dvb/dvb.cpp
@@ -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);
@@ -200,8 +200,6 @@ void eDVBResourceManager::addAdapter(iDVBAdapter *adapter)
 
 		if (!adapter->getFrontend(frontend, i))
 		{
-			frontend->setTone(iDVBFrontend::toneOff);
-			frontend->setVoltage(iDVBFrontend::voltageOff);
 			frontend->setSEC(m_sec);
 			m_frontend.push_back(new eDVBRegisteredFrontend(frontend, adapter));
 		}
@@ -296,11 +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)
 	{
@@ -334,7 +343,7 @@ RESULT eDVBResourceManager::allocateChannel(const eDVBChannelID &channelid, eUse
 	
 	if (allocateFrontend(fe, feparm))
 		return errNoFrontend;
-	
+
 	RESULT res;
 	ePtr<eDVBChannel> ch;
 	ch = new eDVBChannel(this, fe);
@@ -345,8 +354,8 @@ RESULT eDVBResourceManager::allocateChannel(const eDVBChannelID &channelid, eUse
 		channel = 0;
 		return errChidNotFound;
 	}
-	
-	channel = ch;
+	m_cached_channel = channel = ch;
+
 	return 0;
 }
 
@@ -354,6 +363,9 @@ RESULT eDVBResourceManager::allocateRawChannel(eUsePtr<iDVBChannel> &channel, in
 {
 	ePtr<eDVBAllocatedFrontend> fe;
 
+	if (m_cached_channel)
+		m_cached_channel=0;
+
 	if (allocateFrontendByIndex(fe, frontend_index))
 		return errNoFrontend;
 	
@@ -368,7 +380,10 @@ RESULT eDVBResourceManager::allocateRawChannel(eUsePtr<iDVBChannel> &channel, in
 RESULT eDVBResourceManager::allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel)
 {
 	ePtr<eDVBAllocatedDemux> demux;
-	
+
+	if (m_cached_channel)
+		m_cached_channel=0;
+
 	eDVBChannel *ch;
 	ch = new eDVBChannel(this, 0);
 	
@@ -407,6 +422,85 @@ 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)
+{
+		/* 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 true;
+		}
+	}
+
+	int *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;
+							break;
+						}
+					}
+				}
+			}
+			break;
+		}
+	}
+
+	if (!m_list)
+	{
+		eDebug("no channel list set!");
+		return false;
+	}
+
+	ePtr<iDVBFrontendParameters> feparm;
+	if (m_list->getChannelFrontendData(channelid, feparm))
+	{
+		eDebug("channel not found!");
+		return false;
+	}
+
+	bool ret = canAllocateFrontend(feparm);
+
+	if (decremented_fe_usecount)
+		++(*decremented_fe_usecount);
+
+	return ret;
+}
+
 DEFINE_REF(eDVBChannel);
 
 eDVBChannel::eDVBChannel(eDVBResourceManager *mgr, eDVBAllocatedFrontend *frontend): m_state(state_idle), m_mgr(mgr)