-*- Mode: c++ -*- More...

#include <libmythtv/recorders/ExternalChannel.h>

Inheritance diagram for ExternalChannel:

Collaboration diagram for ExternalChannel:

Public Member Functions
	ExternalChannel (TVRec *parent, QString device)

	~ExternalChannel (void) override

bool	Open (void) override
	Opens the channel changing hardware for use. More...

void	Close (void) override
	Closes the channel changing hardware to use. More...

bool	Tune (const DTVMultiplex &) override
	This performs the actual frequency tuning and in some cases input switching. More...

bool	Tune (const QString &channum) override
	Leave it up to the implementation to map the channnum appropriately. More...

bool	Tune (const QString &freqid, int) override

bool	EnterPowerSavingMode (void) override
	Enters power saving mode if the card supports it. More...

bool	IsOpen (void) const override
	Reports whether channel is already open. More...

QString	GetDevice (void) const override
	Returns String representing device, useful for debugging. More...

bool	IsPIDTuningSupported (void) const override

QString	UpdateDescription (void)

QString	GetDescription (void)

bool	IsBackgroundTuning (void) const

uint	GetTuneStatus (void)

virtual bool	Tune (const DTVMultiplex &tuning)=0
	This performs the actual frequency tuning and in some cases input switching. More...

virtual bool	Tune (const IPTVTuningData &, bool)
	Performs IPTV Tuning. Only implemented by IPTVChannel. More...

virtual bool	Tune (const QString &)
	Leave it up to the implementation to map the channnum appropriately. More...

bool	Tune ([[maybe_unused]] const QString &freqid,[[maybe_unused]] int finetune) override
	This tunes on the frequency Identification parameter for hardware that supports it. More...

virtual bool	Tune ([[maybe_unused]] uint64_t frequency)

Public Member Functions inherited from DTVChannel
	DTVChannel (TVRec *parent)

	~DTVChannel () override

bool	SetChannelByString (const QString &chan) override

void	SetFormat (const QString &format) override

QString	GetFormat (void)

virtual bool	TuneMultiplex (uint mplexid, const QString &inputname)
	To be used by the channel scanner and possibly the EIT scanner. More...

virtual bool	Tune (const IPTVTuningData &, bool)
	Performs IPTV Tuning. Only implemented by IPTVChannel. More...

bool	Tune ([[maybe_unused]] const QString &freqid, [[maybe_unused]] int finetune) override
	This tunes on the frequency Identification parameter for hardware that supports it. More...

virtual bool	Tune ([[maybe_unused]] uint64_t frequency)

int	GetProgramNumber (void) const
	Returns program number in PAT, -1 if unknown. More...

uint	GetMajorChannel (void) const
	Returns major channel, 0 if unknown. More...

uint	GetMinorChannel (void) const
	Returns minor channel, 0 if unknown. More...

uint	GetOriginalNetworkID (void) const
	Returns DVB original_network_id, 0 if unknown. More...

uint	GetTransportID (void) const
	Returns DVB transport_stream_id, 0 if unknown. More...

QString	GetSIStandard (void) const
	Returns PSIP table standard: MPEG, DVB, ATSC, or OpenCable. More...

QString	GetSuggestedTuningMode (bool is_live_tv) const
	Returns suggested tuning mode: "mpeg", "dvb", or "atsc". More...

QString	GetTuningMode (void) const
	Returns tuning mode last set by SetTuningMode(). More...

virtual std::vector< DTVTunerType >	GetTunerTypes (void) const
	Returns a vector of supported tuning types. More...

void	GetCachedPids (pid_cache_t &pid_cache) const
	Returns cached MPEG PIDs for last tuned channel. More...

void	RegisterForMaster (const QString &key)

void	DeregisterForMaster (const QString &key)

virtual bool	IsMaster (void) const
	Returns true if this is the first of a number of multi-rec devs. More...

virtual bool	IsIPTV (void) const

bool	HasGeneratedPAT (void) const

bool	HasGeneratedPMT (void) const

const ProgramAssociationTable *	GetGeneratedPAT (void) const

const ProgramMapTable *	GetGeneratedPMT (void) const

void	SetTuningMode (const QString &tuning_mode)
	Sets tuning mode: "mpeg", "dvb", "atsc", etc. More...

void	SaveCachedPids (const pid_cache_t &pid_cache) const
	Saves MPEG PIDs to cache to database. More...

Public Member Functions inherited from ChannelBase
	ChannelBase (TVRec *parent)

virtual	~ChannelBase (void)

virtual bool	Init (QString &startchannel, bool setchan)

virtual bool	IsTunable (const QString &channum) const

virtual int	SetFreqTable (const QString &)

virtual void	SetFd (int fd)
	Sets file descriptor. More...

virtual int	GetFd (void) const
	Returns file descriptor, -1 if it does not exist. More...

virtual bool	IsExternalChannelChangeInUse (void)

virtual uint	GetNextChannel (uint chanid, ChannelChangeDirection direction) const

virtual uint	GetNextChannel (const QString &channum, ChannelChangeDirection direction) const

virtual QString	GetChannelName (void) const

virtual int	GetChanID (void) const

virtual int	GetInputID (void) const

virtual QString	GetInputName (void) const

virtual uint	GetSourceID (void) const

bool	IsCommercialFree (void) const
	Returns true iff commercial detection is not required. More...

virtual void	Renumber (uint sourceid, const QString &oldChanNum, const QString &newChanNum)
	Changes a channum if we have it cached anywhere. More...

virtual bool	InitializeInput (void)
	Fills in input map from DB. More...

virtual bool	Retune (void)

virtual void	StoreInputChannels (void)
	Saves current channel as the default channel for the current input. More...

virtual bool	InitPictureAttributes (void)

virtual int	GetPictureAttribute (PictureAttribute) const

virtual int	ChangePictureAttribute (PictureAdjustType, PictureAttribute, bool)

bool	CheckChannel (const QString &channum) const

void	SetInputID (uint _inputid)

int	GetMajorID (void)

Protected Member Functions
bool	IsExternalChannelChangeSupported (void) override

Protected Member Functions inherited from DTVChannel
void	SetSIStandard (const QString &si_std)
	Sets PSIP table standard: MPEG, DVB, ATSC, or OpenCable. More...

void	SetDTVInfo (uint atsc_major, uint atsc_minor, uint dvb_orig_netid, uint mpeg_tsid, int mpeg_pnum)

void	ClearDTVInfo (void)

virtual void	CheckOptions (DTVMultiplex &) const
	Checks tuning for problems, and tries to fix them. More...

void	HandleScriptEnd (bool ok) override

Protected Member Functions inherited from ChannelBase
virtual bool	IsInputAvailable (uint &mplexid_restriction, uint &chanid_restriction) const
	Switches to another input on hardware, and sets the channel is setstarting is true. More...

bool	KillScript (void)

void	HandleScript (const QString &freqid)

uint	GetScriptStatus (bool holding_lock=false)

bool	ChangeExternalChannel (const QString &changer, const QString &freqid)

bool	ChangeInternalChannel (const QString &freqid, uint cardinputid) const

Private Attributes
std::chrono::milliseconds	m_tuneTimeout { -1ms }

bool	m_backgroundTuning {false}

QString	m_device

QStringList	m_args

ExternalStreamHandler *	m_streamHandler {nullptr}

QString	m_loc

Additional Inherited Members
Public Types inherited from DTVChannel
using	DTVChannelP = DTVChannel *

Static Public Member Functions inherited from DTVChannel
static DTVChannel *	GetMasterLock (const QString &key)

static void	ReturnMasterLock (DTVChannelP &chan)

Static Public Member Functions inherited from ChannelBase
static ChannelBase *	CreateChannel (TVRec *tvrec, const GeneralDBOptions &genOpt, const DVBDBOptions &dvbOpt, const FireWireDBOptions &fwOpt, const QString &startchannel, bool enter_power_save_mode, QString &rbFileExt, bool setchan)

Protected Types inherited from DTVChannel
using	MasterMap = QMap< QString, QList< DTVChannel * > >

Protected Attributes inherited from DTVChannel
QMutex	m_dtvinfoLock

DTVTunerType	m_tunerType {DTVTunerType::kTunerTypeUnknown}

QString	m_sistandard {"mpeg"}
	PSIP table standard: MPEG, DVB, ATSC, OpenCable. More...

QString	m_tuningMode

QString	m_tvFormat

int	m_currentProgramNum {-1}

uint	m_currentATSCMajorChannel {0}

uint	m_currentATSCMinorChannel {0}

uint	m_currentTransportID {0}

uint	m_currentOriginalNetworkID {0}

ProgramAssociationTable *	m_genPAT {nullptr}
	This is a generated PAT for RAW pid tuning. More...

ProgramMapTable *	m_genPMT {nullptr}
	This is a generated PMT for RAW pid tuning. More...

Protected Attributes inherited from ChannelBase
TVRec *	m_pParent {nullptr}

QString	m_curChannelName

bool	m_commFree {false}

uint	m_inputId {0}

uint	m_sourceId {0}

QString	m_name

QString	m_startChanNum

QString	m_externalChanger

QString	m_tuneToChannel

ChannelInfoList	m_channels
	channels across all inputs More...

QMutex	m_systemLock

MythSystemLegacy *	m_system {nullptr}

uint	m_systemStatus {0}
	These get mapped from the GENERIC_EXIT_* to these values for use with the signalmonitor code. More...

Static Protected Attributes inherited from DTVChannel
static QReadWriteLock	s_master_map_lock

static MasterMap	s_master_map

Detailed Description

-*- Mode: c++ -*-

Definition at line 20 of file ExternalChannel.h.

Constructor & Destructor Documentation

◆ ExternalChannel()

ExternalChannel::ExternalChannel	(	TVRec *	parent,
		QString	device
	)

inline

Definition at line 23 of file ExternalChannel.h.

◆ ~ExternalChannel()

ExternalChannel::~ExternalChannel ( void )

override

Definition at line 14 of file ExternalChannel.cpp.

Member Function Documentation

◆ Open()

bool ExternalChannel::Open ( void )

overridevirtual

Opens the channel changing hardware for use.

Implements ChannelBase.

Definition at line 20 of file ExternalChannel.cpp.

◆ Close()

void ExternalChannel::Close ( void )

overridevirtual

Closes the channel changing hardware to use.

Implements ChannelBase.

Definition at line 58 of file ExternalChannel.cpp.

Referenced by EnterPowerSavingMode(), Open(), and ~ExternalChannel().

◆ Tune() [1/8]

bool ExternalChannel::Tune ( const DTVMultiplex & tuning )

inlineoverridevirtual

This performs the actual frequency tuning and in some cases input switching.

In rare cases such as ASI this does nothing since all the channels are in the same MPTS stream on the same input. But generally you will need to implement this when adding support for new hardware.

Implements DTVChannel.

Definition at line 34 of file ExternalChannel.h.

Referenced by Tune().

◆ Tune() [2/8]

bool ExternalChannel::Tune ( const QString & )

overridevirtual

Leave it up to the implementation to map the channnum appropriately.

Used by the ExternalRecorder.

Reimplemented from DTVChannel.

Definition at line 89 of file ExternalChannel.cpp.

◆ Tune() [3/8]

bool ExternalChannel::Tune	(	const QString &	freqid,
		int
	)

overridevirtual

Reimplemented from ChannelBase.

Definition at line 205 of file ExternalChannel.cpp.

◆ EnterPowerSavingMode()

bool ExternalChannel::EnterPowerSavingMode ( void )

overridevirtual

Enters power saving mode if the card supports it.

Reimplemented from DTVChannel.

Definition at line 210 of file ExternalChannel.cpp.

◆ IsOpen()

bool ExternalChannel::IsOpen ( void ) const

inlineoverridevirtual

Reports whether channel is already open.

Implements ChannelBase.

Definition at line 42 of file ExternalChannel.h.

Referenced by Close(), Open(), Tune(), and ~ExternalChannel().

◆ GetDevice()

QString ExternalChannel::GetDevice ( void ) const

inlineoverridevirtual

Returns String representing device, useful for debugging.

Reimplemented from ChannelBase.

Definition at line 44 of file ExternalChannel.h.

Referenced by GetDescription(), ExternalRecorder::Open(), and UpdateDescription().

◆ IsPIDTuningSupported()

bool ExternalChannel::IsPIDTuningSupported ( void ) const

inlineoverridevirtual

Reimplemented from DTVChannel.

Definition at line 46 of file ExternalChannel.h.

◆ UpdateDescription()

QString ExternalChannel::UpdateDescription ( void )

Definition at line 69 of file ExternalChannel.cpp.

Referenced by GetTuneStatus(), and Tune().

◆ GetDescription()

QString ExternalChannel::GetDescription ( void )

Definition at line 79 of file ExternalChannel.cpp.

Referenced by Open().

◆ IsBackgroundTuning()

bool ExternalChannel::IsBackgroundTuning ( void ) const

inline

Definition at line 51 of file ExternalChannel.h.

Referenced by ExternalSignalMonitor::ExternalSignalMonitor(), and ExternalSignalMonitor::UpdateValues().

◆ GetTuneStatus()

uint ExternalChannel::GetTuneStatus ( void )

Definition at line 216 of file ExternalChannel.cpp.

Referenced by ExternalSignalMonitor::UpdateValues().

◆ IsExternalChannelChangeSupported()

bool ExternalChannel::IsExternalChannelChangeSupported ( void )

inlineoverrideprotectedvirtual

Reimplemented from ChannelBase.

Definition at line 55 of file ExternalChannel.h.

◆ Tune() [4/8]

virtual bool DTVChannel::Tune

This performs the actual frequency tuning and in some cases input switching.

In rare cases such as ASI this does nothing since all the channels are in the same MPTS stream on the same input. But generally you will need to implement this when adding support for new hardware.

◆ Tune() [5/8]

virtual bool DTVChannel::Tune

inline

Performs IPTV Tuning. Only implemented by IPTVChannel.

Definition at line 58 of file dtvchannel.h.

◆ Tune() [6/8]

virtual bool DTVChannel::Tune

inline

Leave it up to the implementation to map the channnum appropriately.

Used by the ExternalRecorder.

Definition at line 63 of file dtvchannel.h.

◆ Tune() [7/8]

bool DTVChannel::Tune

inlineoverride

This tunes on the frequency Identification parameter for hardware that supports it.

This is only called when there is no frequency set. This is used to implement "Channel Numbers" in analog tuning scenarios and to implement "Virtual Channels" in the OCUR and Firewire tuners.

Definition at line 75 of file dtvchannel.h.

◆ Tune() [8/8]

virtual bool DTVChannel::Tune

inline

Definition at line 81 of file dtvchannel.h.

Member Data Documentation

◆ m_tuneTimeout

std::chrono::milliseconds ExternalChannel::m_tuneTimeout { -1ms }

private

Definition at line 59 of file ExternalChannel.h.

Referenced by Tune().

◆ m_backgroundTuning

bool ExternalChannel::m_backgroundTuning {false}

private

Definition at line 60 of file ExternalChannel.h.

Referenced by GetTuneStatus(), IsBackgroundTuning(), and Tune().

◆ m_device

QString ExternalChannel::m_device

private

Definition at line 61 of file ExternalChannel.h.

Referenced by GetDevice(), and Open().

◆ m_args

QStringList ExternalChannel::m_args

private

Definition at line 62 of file ExternalChannel.h.

◆ m_streamHandler

ExternalStreamHandler* ExternalChannel::m_streamHandler {nullptr}

private

Definition at line 63 of file ExternalChannel.h.

Referenced by Close(), GetDescription(), GetTuneStatus(), IsOpen(), Open(), Tune(), and UpdateDescription().

◆ m_loc

QString ExternalChannel::m_loc

private

Definition at line 64 of file ExternalChannel.h.

Referenced by GetDescription(), and UpdateDescription().

The documentation for this class was generated from the following files:

mythtv/libs/libmythtv/recorders/ExternalChannel.h
mythtv/libs/libmythtv/recorders/ExternalChannel.cpp

Public Member Functions

Protected Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ExternalChannel()

◆ ~ExternalChannel()

Member Function Documentation

◆ Open()

◆ Close()

◆ Tune() [1/8]

◆ Tune() [2/8]

◆ Tune() [3/8]

◆ EnterPowerSavingMode()

◆ IsOpen()

◆ GetDevice()

◆ IsPIDTuningSupported()

◆ UpdateDescription()

◆ GetDescription()

◆ IsBackgroundTuning()

◆ GetTuneStatus()

◆ IsExternalChannelChangeSupported()

◆ Tune() [4/8]

◆ Tune() [5/8]

◆ Tune() [6/8]

◆ Tune() [7/8]

◆ Tune() [8/8]

Member Data Documentation

◆ m_tuneTimeout

◆ m_backgroundTuning

◆ m_device

◆ m_args

◆ m_streamHandler

◆ m_loc