X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/1aeefd997cc362c3b37c1587c5f08891b35c3a75..8ef240801bf66e543cdea9df3b32fc09cebcc7e5:/lib/dvb/dvb.h

diff --git a/lib/dvb/dvb.h b/lib/dvb/dvb.h
index 52dd9a07..6209f281 100644
--- a/lib/dvb/dvb.h
+++ b/lib/dvb/dvb.h
@@ -1,26 +1,176 @@
 #ifndef __dvb_dvb_h
 #define __dvb_dvb_h
 
+#include <lib/base/ebase.h>
+#include <lib/base/filepush.h>
+#include <lib/base/elock.h>
 #include <lib/dvb/idvb.h>
 #include <lib/dvb/demux.h>
 #include <lib/dvb/frontend.h>
+#include <lib/dvb/tstools.h>
 #include <connection.h>
 
 class eDVBChannel;
 
-class eDVBResourceManager: public iDVBResourceManager
+	/* we do NOT handle resource conflicts here. instead, the allocateChannel
+	   fails, and the application has to see why the channel is allocated
+	   (and how to deallocate it). */
+class iDVBAdapter;
+
+class eDVBRegisteredFrontend: public iObject, public Object
+{
+	DECLARE_REF(eDVBRegisteredFrontend);
+	eTimer *disable;
+	void closeFrontend()
+	{
+		if (!m_inuse && m_frontend->closeFrontend()) // frontend busy
+			disable->start(60000, true);  // retry close in 60secs
+	}
+public:
+	eDVBRegisteredFrontend(eDVBFrontend *fe, iDVBAdapter *adap)
+		:disable(new eTimer(eApp)), m_adapter(adap), m_frontend(fe), m_inuse(0)
+	{
+		disable = new eTimer(eApp);
+		CONNECT(disable->timeout, eDVBRegisteredFrontend::closeFrontend);
+	}
+	void dec_use()
+	{
+		if (!--m_inuse)
+			disable->start(3000, true);
+	}
+	void inc_use()
+	{
+		if (++m_inuse == 1)
+			m_frontend->openFrontend();
+	}
+	iDVBAdapter *m_adapter;
+	ePtr<eDVBFrontend> m_frontend;
+	int m_inuse;
+};
+
+struct eDVBRegisteredDemux
 {
-	DECLARE_REF;
+DECLARE_REF(eDVBRegisteredDemux);
+public:
+	iDVBAdapter *m_adapter;
+	ePtr<eDVBDemux> m_demux;
+	int m_inuse;
+	eDVBRegisteredDemux(eDVBDemux *demux, iDVBAdapter *adap): m_adapter(adap), m_demux(demux), m_inuse(0) { }
+};
+
+class eDVBAllocatedFrontend
+{
+DECLARE_REF(eDVBAllocatedFrontend);
+public:
+	
+	eDVBAllocatedFrontend(eDVBRegisteredFrontend *fe);
+	~eDVBAllocatedFrontend();
+	eDVBFrontend &get() { return *m_fe->m_frontend; }
+	operator eDVBRegisteredFrontend*() { return m_fe; }
+	operator eDVBFrontend*() { return m_fe->m_frontend; }
+
+private:
+	eDVBRegisteredFrontend *m_fe;
+};
+
+class eDVBAllocatedDemux
+{
+DECLARE_REF(eDVBAllocatedDemux);
+public:
+	
+	eDVBAllocatedDemux(eDVBRegisteredDemux *demux);
+	~eDVBAllocatedDemux();
+	eDVBDemux &get() { return *m_demux->m_demux; }
+	operator eDVBRegisteredDemux*() { return m_demux; }
+	operator eDVBDemux*() { return m_demux->m_demux; }
+	
+private:
+	eDVBRegisteredDemux *m_demux;
+};
+
+class iDVBAdapter: public iObject
+{
+public:
+	virtual int getNumDemux() = 0;
+	virtual RESULT getDemux(ePtr<eDVBDemux> &demux, int nr) = 0;
+	
+	virtual int getNumFrontends() = 0;
+	virtual RESULT getFrontend(ePtr<eDVBFrontend> &fe, int nr) = 0;
+};
+
+class eDVBAdapterLinux: public iDVBAdapter
+{
+DECLARE_REF(eDVBAdapterLinux);
+public:
+	eDVBAdapterLinux(int nr);
+
+	int getNumDemux();
+	RESULT getDemux(ePtr<eDVBDemux> &demux, int nr);
+	
+	int getNumFrontends();
+	RESULT getFrontend(ePtr<eDVBFrontend> &fe, int nr);
+	
+	static int exist(int nr);
+private:
+	int m_nr;
+	eSmartPtrList<eDVBFrontend> m_frontend;
+	eSmartPtrList<eDVBDemux>    m_demux;
+};
+
+class eDVBResourceManager: public iObject, public Object
+{
+	DECLARE_REF(eDVBResourceManager);
 	int avail, busy;
-	struct adapter
+
+	eSmartPtrList<iDVBAdapter> m_adapter;
+	
+	eSmartPtrList<eDVBRegisteredDemux> m_demux;
+	eSmartPtrList<eDVBRegisteredFrontend> m_frontend;
+	
+	void addAdapter(iDVBAdapter *adapter);
+	
+			/* allocates a frontend able to tune to frontend paramters 'feperm'.
+			   the frontend must be tuned lateron. there is no guarante
+			   that tuning will succeed - it just means that if this frontend
+			   can't tune, no other frontend could do it.
+			   
+			   there might be a priority given to certain frontend/chid 
+			   combinations. this will be evaluated here. */
+			   
+	RESULT allocateFrontend(ePtr<eDVBAllocatedFrontend> &fe, ePtr<iDVBFrontendParameters> &feparm);
+	RESULT allocateFrontendByIndex(ePtr<eDVBAllocatedFrontend> &fe, int index);
+	
+			/* allocate a demux able to filter on the selected frontend. */
+	RESULT allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBAllocatedDemux> &demux, int cap);
+	
+	struct active_channel
 	{
-		eSmartPtrList<eDVBFrontend> fe;
-		eSmartPtrList<eDVBDemux> demux;
+		eDVBChannelID m_channel_id;
+			/* we don't hold a reference here. */
+		eDVBChannel *m_channel;
+		
+		active_channel(const eDVBChannelID &chid, eDVBChannel *ch) : m_channel_id(chid), m_channel(ch) { }
 	};
-	std::multimap<eDVBChannelID,eDVBChannel*> m_active_channels;
+	
+	std::list<active_channel> m_active_channels;
+	
 	ePtr<iDVBChannelList> m_list;
 	ePtr<iDVBSatelliteEquipmentControl> m_sec;
 	static eDVBResourceManager *instance;
+	
+	friend class eDVBChannel;
+	RESULT addChannel(const eDVBChannelID &chid, eDVBChannel *ch);
+	RESULT removeChannel(eDVBChannel *ch);
+
+	Signal1<void,eDVBChannel*> m_channelAdded;
+
+	bool canAllocateFrontend(ePtr<iDVBFrontendParameters> &feparm);
+
+	eUsePtr<iDVBChannel> m_cached_channel;
+	Connection m_cached_channel_state_changed_conn;
+	eTimer m_releaseCachedChannelTimer;
+	void DVBChannelStateChanged(iDVBChannel*);
+	void releaseCachedChannel();
 public:
 	eDVBResourceManager();
 	virtual ~eDVBResourceManager();
@@ -30,40 +180,96 @@ public:
 	RESULT setChannelList(iDVBChannelList *list);
 	RESULT getChannelList(ePtr<iDVBChannelList> &list);
 	
-	RESULT allocateChannel(const eDVBChannelID &channelid, ePtr<iDVBChannel> &channel);
-	RESULT allocateRawChannel(ePtr<iDVBChannel> &channel);
-	RESULT allocatePVRChannel(int caps);
-	
-	RESULT addChannel(const eDVBChannelID &chid, eDVBChannel *ch);
-	RESULT removeChannel(const eDVBChannelID &chid, eDVBChannel *ch);
+	enum {
+		errNoFrontend = -1,
+		errNoDemux    = -2,
+		errChidNotFound = -3
+	};
+
+		/* allocate channel... */
+	RESULT allocateChannel(const eDVBChannelID &channelid, eUsePtr<iDVBChannel> &channel);
+	RESULT allocateRawChannel(eUsePtr<iDVBChannel> &channel, int frontend_index);
+	RESULT allocatePVRChannel(eUsePtr<iDVBPVRChannel> &channel);
+
+	RESULT connectChannelAdded(const Slot1<void,eDVBChannel*> &channelAdded, ePtr<eConnection> &connection);
+
+	bool canAllocateChannel(const eDVBChannelID &channelid, const eDVBChannelID &ignore);
 };
 
-class eDVBChannel: public iDVBChannel, public eDVBDemux, public Object
+	/* iDVBPVRChannel includes iDVBChannel. don't panic. */
+class eDVBChannel: public iDVBPVRChannel, public iFilePushScatterGather, public Object
 {
-	DECLARE_REF;
+	DECLARE_REF(eDVBChannel);
+	friend class eDVBResourceManager;
+public:
+	eDVBChannel(eDVBResourceManager *mgr, eDVBAllocatedFrontend *frontend);
+	virtual ~eDVBChannel();
+
+		/* only for managed channels - effectively tunes to the channelid. should not be used... */
+		/* cannot be used for PVR channels. */
+	RESULT setChannel(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &feparam);
+	eDVBChannelID getChannelID() { return m_channel_id; }
+
+	RESULT connectStateChange(const Slot1<void,iDVBChannel*> &stateChange, ePtr<eConnection> &connection);
+	RESULT connectEvent(const Slot2<void,iDVBChannel*,int> &eventChange, ePtr<eConnection> &connection);
+	
+	RESULT getState(int &state);
+
+	RESULT setCIRouting(const eDVBCIRouting &routing);
+	RESULT getDemux(ePtr<iDVBDemux> &demux, int cap);
+	RESULT getFrontend(ePtr<iDVBFrontend> &frontend);
+	
+		/* iDVBPVRChannel */
+	RESULT playFile(const char *file);
+	void stopFile();
+	
+	void setCueSheet(eCueSheet *cuesheet);
+	
+	RESULT getLength(pts_t &len);
+	RESULT getCurrentPosition(iDVBDemux *decoding_demux, pts_t &pos, int mode);
+
+	int getUseCount() { return m_use_count; }
 private:
-	ePtr<eDVBFrontend> m_frontend;
+	ePtr<iDVBFrontendParameters> m_feparm; // for retune on lostlock
+	ePtr<eDVBAllocatedFrontend> m_frontend;
+	ePtr<eDVBAllocatedDemux> m_demux, m_decoder_demux;
+	
 	ePtr<iDVBFrontendParameters> m_current_frontend_parameters;
 	eDVBChannelID m_channel_id;
 	Signal1<void,iDVBChannel*> m_stateChanged;
+	Signal2<void,iDVBChannel*,int> m_event;
 	int m_state;
+
+			/* for channel list */
 	ePtr<eDVBResourceManager> m_mgr;
 	
 	void frontendStateChanged(iDVBFrontend*fe);
 	ePtr<eConnection> m_conn_frontendStateChanged;
-public:
-	eDVBChannel(eDVBResourceManager *mgr, int adapter, int frontend, int demux);
-	virtual ~eDVBChannel();
-
-		/* only for managed channels */
-	RESULT setChannel(const eDVBChannelID &id);
 	
-	RESULT connectStateChange(const Slot1<void,iDVBChannel*> &stateChange, ePtr<eConnection> &connection);
-	RESULT getState(int &state);
+		/* for PVR playback */
+	eFilePushThread *m_pvr_thread;
+	void pvrEvent(int event);
+	
+	int m_pvr_fd_dst;
+	eDVBTSTools m_tstools;
+	
+	ePtr<eCueSheet> m_cue;
+	
+	void cueSheetEvent(int event);
+	ePtr<eConnection> m_conn_cueSheetEvent;
+	int m_skipmode_m, m_skipmode_n;
+	
+	std::list<std::pair<off_t, off_t> > m_source_span;
+	void getNextSourceSpan(off_t current_offset, size_t bytes_read, off_t &start, size_t &size);
+	void flushPVR(iDVBDemux *decoding_demux=0);
+	
+	eSingleLock m_cuesheet_lock;
 
-	RESULT setCIRouting(const eDVBCIRouting &routing);
-	RESULT getDemux(ePtr<iDVBDemux> &demux);
-	RESULT getFrontend(ePtr<iDVBFrontend> &frontend);
+	friend class eUsePtr<eDVBChannel>;
+		/* use count */
+	oRefCount m_use_count;
+	void AddUse();
+	void ReleaseUse();
 };
 
 #endif