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DTVChannel Class Referenceabstract

Class providing a generic interface to digital tuning hardware. More...

#include <dtvchannel.h>

Inheritance diagram for DTVChannel:
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Collaboration diagram for DTVChannel:
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Public Types

typedef DTVChannelDTVChannelP
 

Public Member Functions

 DTVChannel (TVRec *parent)
 
virtual ~DTVChannel ()
 
bool SetChannelByString (const QString &chan) override
 
void SetFormat (const QString &format) override
 
QString GetFormat (void)
 
virtual bool TuneMultiplex (uint mplexid, QString inputname)
 To be used by the channel scanner and possibly the EIT scanner. More...
 
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...
 
virtual bool EnterPowerSavingMode (void)
 Enters power saving mode if the card supports it. More...
 
bool Tune (const QString &freqid, int finetune) override
 This tunes on the frequency Identification parameter for hardware that supports it. More...
 
virtual bool Tune (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 vector< DTVTunerTypeGetTunerTypes (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 IsPIDTuningSupported (void) const
 
virtual bool IsIPTV (void) const
 
bool HasGeneratedPAT (void) const
 
bool HasGeneratedPMT (void) const
 
const ProgramAssociationTableGetGeneratedPAT (void) const
 
const ProgramMapTableGetGeneratedPMT (void) const
 
void SetTuningMode (const QString &tuningmode)
 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 bool Open (void)=0
 Opens the channel changing hardware for use. More...
 
virtual void Close (void)=0
 Closes the channel changing hardware to use. More...
 
virtual bool IsOpen (void) const =0
 Reports whether channel is already open. More...
 
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 QString GetDevice (void) const
 Returns String representing device, useful for debugging. More...
 
virtual void Renumber (uint srcid, 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)
 

Static Public Member Functions

static DTVChannelGetMasterLock (const QString &key)
 
static void ReturnMasterLock (DTVChannelP &)
 
- Static Public Member Functions inherited from ChannelBase
static ChannelBaseCreateChannel (TVRec *tv_rec, const GeneralDBOptions &genOpt, const DVBDBOptions &dvbOpt, const FireWireDBOptions &fwOpt, const QString &startchannel, bool enter_power_save_mode, QString &rbFileExt, bool setchan)
 

Protected Types

typedef QMap< QString, QList< DTVChannel * > > MasterMap
 

Protected Member Functions

void SetSIStandard (const QString &)
 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_restrtiction) const
 Switches to another input on hardware, and sets the channel is setstarting is true. More...
 
virtual bool IsExternalChannelChangeSupported (void)
 
bool KillScript (void)
 
void HandleScript (const QString &freqid)
 
uint GetScriptStatus (bool holding_lock=false)
 
bool ChangeExternalChannel (const QString &changer, const QString &newchan)
 
bool ChangeInternalChannel (const QString &newchan, uint cardinputid)
 

Protected Attributes

QMutex dtvinfo_lock
 
DTVTunerType tunerType
 
QString sistandard
 PSIP table standard: MPEG, DVB, ATSC, OpenCable. More...
 
QString tuningMode
 
QString m_tvFormat
 
int currentProgramNum
 
uint currentATSCMajorChannel
 
uint currentATSCMinorChannel
 
uint currentTransportID
 
uint currentOriginalNetworkID
 
ProgramAssociationTablegenPAT
 This is a generated PAT for RAW pid tuning. More...
 
ProgramMapTablegenPMT
 This is a generated PMT for RAW pid tuning. More...
 
- Protected Attributes inherited from ChannelBase
TVRecm_pParent
 
QString m_curchannelname
 
bool m_commfree
 
uint m_inputid
 
uint m_sourceid
 
QString m_name
 
QString m_startChanNum
 
QString m_externalChanger
 
QString m_tuneToChannel
 
ChannelInfoList m_channels
 channels across all inputs More...
 
QMutex m_system_lock
 
MythSystemLegacym_system
 
uint m_system_status
 These get mapped from the GENERIC_EXIT_* to these values for use with the signalmonitor code. More...
 

Static Protected Attributes

static QReadWriteLock master_map_lock
 
static MasterMap master_map
 

Detailed Description

Class providing a generic interface to digital tuning hardware.

Definition at line 34 of file dtvchannel.h.

Member Typedef Documentation

◆ DTVChannelP

Definition at line 127 of file dtvchannel.h.

◆ MasterMap

typedef QMap<QString,QList<DTVChannel*> > DTVChannel::MasterMap
protected

Definition at line 178 of file dtvchannel.h.

Constructor & Destructor Documentation

◆ DTVChannel()

DTVChannel::DTVChannel ( TVRec parent)
explicit

Definition at line 17 of file dtvchannel.cpp.

◆ ~DTVChannel()

DTVChannel::~DTVChannel ( )
virtual

Definition at line 28 of file dtvchannel.cpp.

Member Function Documentation

◆ SetChannelByString()

bool DTVChannel::SetChannelByString ( const QString &  chan)
overridevirtual

Implements ChannelBase.

Reimplemented in HDHRChannel.

Definition at line 167 of file dtvchannel.cpp.

Referenced by CetonChannel::SetChannelByString(), and HDHRChannel::SetChannelByString().

◆ SetFormat()

void DTVChannel::SetFormat ( const QString &  format)
inlineoverridevirtual

Reimplemented from ChannelBase.

Reimplemented in V4LChannel.

Definition at line 45 of file dtvchannel.h.

Referenced by SetChannelByString().

◆ GetFormat()

QString DTVChannel::GetFormat ( void  )
inline

◆ TuneMultiplex()

bool DTVChannel::TuneMultiplex ( uint  mplexid,
QString  inputname 
)
virtual

To be used by the channel scanner and possibly the EIT scanner.

Definition at line 393 of file dtvchannel.cpp.

Referenced by ChannelScanSM::Tune().

◆ Tune() [1/5]

virtual bool DTVChannel::Tune ( const DTVMultiplex tuning)
pure virtual

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.

Implemented in DVBChannel, HDHRChannel, CetonChannel, V4LChannel, IPTVChannel, ExternalChannel, FirewireChannel, and ASIChannel.

Referenced by SetChannelByString(), ChannelScanSM::Tune(), and TuneMultiplex().

◆ Tune() [2/5]

virtual bool DTVChannel::Tune ( const IPTVTuningData ,
bool   
)
inlinevirtual

Performs IPTV Tuning. Only implemented by IPTVChannel.

Reimplemented in IPTVChannel.

Definition at line 59 of file dtvchannel.h.

◆ Tune() [3/5]

virtual bool DTVChannel::Tune ( const QString &  )
inlinevirtual

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

Used by the ExternalRecorder.

Reimplemented in ExternalChannel.

Definition at line 64 of file dtvchannel.h.

◆ EnterPowerSavingMode()

virtual bool DTVChannel::EnterPowerSavingMode ( void  )
inlinevirtual

Enters power saving mode if the card supports it.

Reimplemented in IPTVChannel, ExternalChannel, CetonChannel, and HDHRChannel.

Definition at line 66 of file dtvchannel.h.

Referenced by ChannelBase::CreateChannel(), and TVRec::TeardownRecorder().

◆ Tune() [4/5]

bool DTVChannel::Tune ( const QString &  freqid,
int  finetune 
)
inlineoverridevirtual

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.

Reimplemented from ChannelBase.

Reimplemented in HDHRChannel, V4LChannel, ExternalChannel, and FirewireChannel.

Definition at line 76 of file dtvchannel.h.

◆ Tune() [5/5]

virtual bool DTVChannel::Tune ( uint64_t  frequency)
inlinevirtual

Reimplemented in V4LChannel, and ASIChannel.

Definition at line 82 of file dtvchannel.h.

◆ GetProgramNumber()

int DTVChannel::GetProgramNumber ( void  ) const
inline

Returns program number in PAT, -1 if unknown.

Definition at line 91 of file dtvchannel.h.

Referenced by ASIRecorder::ASIRecorder(), and TVRec::SetupDTVSignalMonitor().

◆ GetMajorChannel()

uint DTVChannel::GetMajorChannel ( void  ) const
inline

Returns major channel, 0 if unknown.

Definition at line 95 of file dtvchannel.h.

Referenced by TVRec::SetupDTVSignalMonitor().

◆ GetMinorChannel()

uint DTVChannel::GetMinorChannel ( void  ) const
inline

Returns minor channel, 0 if unknown.

Definition at line 99 of file dtvchannel.h.

Referenced by ASIRecorder::ASIRecorder(), and TVRec::SetupDTVSignalMonitor().

◆ GetOriginalNetworkID()

uint DTVChannel::GetOriginalNetworkID ( void  ) const
inline

Returns DVB original_network_id, 0 if unknown.

Definition at line 103 of file dtvchannel.h.

Referenced by TVRec::SetupDTVSignalMonitor().

◆ GetTransportID()

uint DTVChannel::GetTransportID ( void  ) const
inline

Returns DVB transport_stream_id, 0 if unknown.

Definition at line 107 of file dtvchannel.h.

Referenced by TVRec::SetupDTVSignalMonitor().

◆ GetSIStandard()

QString DTVChannel::GetSIStandard ( void  ) const

◆ GetSuggestedTuningMode()

QString DTVChannel::GetSuggestedTuningMode ( bool  is_live_tv) const

Returns suggested tuning mode: "mpeg", "dvb", or "atsc".

Definition at line 67 of file dtvchannel.cpp.

Referenced by TVRec::TuningFrequency().

◆ GetTuningMode()

QString DTVChannel::GetTuningMode ( void  ) const

Returns tuning mode last set by SetTuningMode().

Definition at line 83 of file dtvchannel.cpp.

Referenced by TVRec::SetupDTVSignalMonitor().

◆ GetTunerTypes()

vector< DTVTunerType > DTVChannel::GetTunerTypes ( void  ) const
virtual

Returns a vector of supported tuning types.

Reimplemented in ASIChannel, CetonChannel, and HDHRChannel.

Definition at line 89 of file dtvchannel.cpp.

Referenced by ChannelScanSM::GuessDTVTunerType().

◆ GetCachedPids()

void DTVChannel::GetCachedPids ( pid_cache_t pid_cache) const

Returns cached MPEG PIDs for last tuned channel.

Parameters
pid_cacheList of PIDs with their TableID types is returned in pid_cache.

Definition at line 107 of file dtvchannel.cpp.

Referenced by ApplyCachedPids(), and TVRec::SetupDTVSignalMonitor().

◆ RegisterForMaster()

void DTVChannel::RegisterForMaster ( const QString &  key)

Definition at line 124 of file dtvchannel.cpp.

Referenced by HDHRChannel::HDHRChannel().

◆ DeregisterForMaster()

void DTVChannel::DeregisterForMaster ( const QString &  key)

Definition at line 131 of file dtvchannel.cpp.

Referenced by HDHRChannel::~HDHRChannel().

◆ GetMasterLock()

DTVChannel * DTVChannel::GetMasterLock ( const QString &  key)
static

Definition at line 146 of file dtvchannel.cpp.

Referenced by DVBChannel::GetMasterLock(), and HDHRChannel::IsMaster().

◆ ReturnMasterLock()

void DTVChannel::ReturnMasterLock ( DTVChannelP chan)
static

◆ IsMaster()

virtual bool DTVChannel::IsMaster ( void  ) const
inlinevirtual

Returns true if this is the first of a number of multi-rec devs.

Reimplemented in DVBChannel, and HDHRChannel.

Definition at line 131 of file dtvchannel.h.

◆ IsPIDTuningSupported()

virtual bool DTVChannel::IsPIDTuningSupported ( void  ) const
inlinevirtual

Reimplemented in IPTVChannel, ExternalChannel, and ASIChannel.

Definition at line 133 of file dtvchannel.h.

Referenced by SetChannelByString().

◆ IsIPTV()

virtual bool DTVChannel::IsIPTV ( void  ) const
inlinevirtual

Reimplemented in IPTVChannel.

Definition at line 135 of file dtvchannel.h.

Referenced by SetChannelByString().

◆ HasGeneratedPAT()

bool DTVChannel::HasGeneratedPAT ( void  ) const
inline

Definition at line 137 of file dtvchannel.h.

Referenced by ExternalRecorder::run(), V4L2encRecorder::run(), and ASIRecorder::run().

◆ HasGeneratedPMT()

bool DTVChannel::HasGeneratedPMT ( void  ) const
inline

Definition at line 138 of file dtvchannel.h.

◆ GetGeneratedPAT()

const ProgramAssociationTable* DTVChannel::GetGeneratedPAT ( void  ) const
inline

Definition at line 139 of file dtvchannel.h.

Referenced by ExternalRecorder::run(), V4L2encRecorder::run(), and ASIRecorder::run().

◆ GetGeneratedPMT()

const ProgramMapTable* DTVChannel::GetGeneratedPMT ( void  ) const
inline

Definition at line 140 of file dtvchannel.h.

Referenced by ExternalRecorder::run(), V4L2encRecorder::run(), and ASIRecorder::run().

◆ SetTuningMode()

void DTVChannel::SetTuningMode ( const QString &  tuningmode)

Sets tuning mode: "mpeg", "dvb", "atsc", etc.

Definition at line 97 of file dtvchannel.cpp.

Referenced by TVRec::TuningFrequency().

◆ SaveCachedPids()

void DTVChannel::SaveCachedPids ( const pid_cache_t pid_cache) const

Saves MPEG PIDs to cache to database.

Parameters
pid_cacheList of PIDs with their TableID types to be saved.

Definition at line 117 of file dtvchannel.cpp.

Referenced by TVRec::TeardownSignalMonitor().

◆ SetSIStandard()

void DTVChannel::SetSIStandard ( const QString &  si_std)
protected

Sets PSIP table standard: MPEG, DVB, ATSC, or OpenCable.

Definition at line 61 of file dtvchannel.cpp.

Referenced by SetChannelByString(), CetonChannel::Tune(), HDHRChannel::Tune(), and DVBChannel::Tune().

◆ SetDTVInfo()

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

Definition at line 43 of file dtvchannel.cpp.

Referenced by SetChannelByString().

◆ ClearDTVInfo()

void DTVChannel::ClearDTVInfo ( void  )
inlineprotected

Definition at line 155 of file dtvchannel.h.

Referenced by SetChannelByString().

◆ CheckOptions()

virtual void DTVChannel::CheckOptions ( DTVMultiplex ) const
inlineprotectedvirtual

Checks tuning for problems, and tries to fix them.

Reimplemented in DVBChannel.

Definition at line 157 of file dtvchannel.h.

Referenced by SetChannelByString(), and TuneMultiplex().

◆ HandleScriptEnd()

void DTVChannel::HandleScriptEnd ( bool  ok)
overrideprotectedvirtual
Note
m_system_lock must be held when this is called

Reimplemented from ChannelBase.

Definition at line 384 of file dtvchannel.cpp.

Member Data Documentation

◆ dtvinfo_lock

QMutex DTVChannel::dtvinfo_lock
mutableprotected

◆ tunerType

DTVTunerType DTVChannel::tunerType
protected

◆ sistandard

QString DTVChannel::sistandard
protected

PSIP table standard: MPEG, DVB, ATSC, OpenCable.

Definition at line 164 of file dtvchannel.h.

Referenced by GetSIStandard(), GetSuggestedTuningMode(), DVBChannel::ProbeTuningParams(), and SetSIStandard().

◆ tuningMode

QString DTVChannel::tuningMode
protected

Definition at line 165 of file dtvchannel.h.

Referenced by GetTuningMode(), and SetTuningMode().

◆ m_tvFormat

QString DTVChannel::m_tvFormat
protected

Definition at line 166 of file dtvchannel.h.

◆ currentProgramNum

int DTVChannel::currentProgramNum
protected

Definition at line 167 of file dtvchannel.h.

Referenced by CetonChannel::SetChannelByString(), and SetDTVInfo().

◆ currentATSCMajorChannel

uint DTVChannel::currentATSCMajorChannel
protected

Definition at line 168 of file dtvchannel.h.

Referenced by SetDTVInfo().

◆ currentATSCMinorChannel

uint DTVChannel::currentATSCMinorChannel
protected

Definition at line 169 of file dtvchannel.h.

Referenced by SetDTVInfo().

◆ currentTransportID

uint DTVChannel::currentTransportID
protected

Definition at line 170 of file dtvchannel.h.

Referenced by SetDTVInfo().

◆ currentOriginalNetworkID

uint DTVChannel::currentOriginalNetworkID
protected

Definition at line 171 of file dtvchannel.h.

Referenced by SetDTVInfo().

◆ genPAT

ProgramAssociationTable* DTVChannel::genPAT
protected

This is a generated PAT for RAW pid tuning.

Definition at line 174 of file dtvchannel.h.

Referenced by SetChannelByString(), and ~DTVChannel().

◆ genPMT

ProgramMapTable* DTVChannel::genPMT
protected

This is a generated PMT for RAW pid tuning.

Definition at line 176 of file dtvchannel.h.

Referenced by SetChannelByString(), and ~DTVChannel().

◆ master_map_lock

QReadWriteLock DTVChannel::master_map_lock
staticprotected

◆ master_map

MasterMap DTVChannel::master_map
staticprotected

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