V4L2util Class Reference

#include <v4l2util.h>

Collaboration diagram for V4L2util:

Public Member Functions
	V4L2util (void)=default
	V4L2util (const QString &dev_name)
	V4L2util (const QString &dev_name, const QString &vbi_dev_name)
	~V4L2util (void)
bool	Open (const QString &dev_name, const QString &vbi_dev_name="")
void	Close (void)
int	FD (void) const
bool	operator! (void) const
bool	IsOpen (void) const
bool	GetOptions (DriverOption::Options &options)
int	GetOptionValue (DriverOption::category_t cat, const QString &desc)
bool	GetFormats (QStringList &formats)
bool	GetVideoStandard (QString &name) const
int	GetSignalStrength (void) const
bool	GetResolution (int &width, int &height) const
uint32_t	GetCapabilities (void) const
QString	GetDeviceName (void) const
QString	GetDriverName (void) const
bool	HasTuner (void) const
bool	HasAudioSupport (void) const
bool	HasStreaming (void) const
bool	HasSlicedVBI (void) const
bool	IsEncoder (void) const
bool	UserAdjustableResolution (void) const
QString	DriverName (void) const
QString	CardName (void) const
QString	ProfileName (void) const
int	GetStreamType (void) const
bool	SetStreamType (int value)
bool	SetVideoAspect (int value)
bool	SetVideoBitrateMode (int value)
bool	SetVideoBitrate (int value)
bool	SetVideoBitratePeak (int value)
bool	SetResolution (uint32_t width, uint32_t height)
bool	SetAudioInput (int value)
bool	SetAudioCodec (int value)
bool	SetVolume (int volume)
bool	SetLanguageMode (int mode)
bool	SetAudioSamplingRate (int value)
bool	SetAudioBitrateL2 (int value)
bool	StartEncoding (void)
bool	StopEncoding (void)
bool	PauseEncoding (void)
bool	ResumeEncoding (void)

Static Public Member Functions
static QString	StreamTypeDesc (int value)

Protected Member Functions
bool	SetSlicedVBI (VBIMode::vbimode_t vbimode)
int	GetExtControl (int request, const QString &ctrl_desc="") const
bool	SetExtControl (int request, int value, const QString &ctrl_desc, const QString &value_desc)
bool	SetEncoderState (int mode, const QString &desc)
void	SetDefaultOptions (DriverOption::Options &options)
void	log_qctrl (struct v4l2_queryctrl &queryctrl, DriverOption &drv_opt, QString &msg)
bool	log_control (struct v4l2_queryctrl &qctrl, DriverOption &drv_opt, QString &msg)
void	log_controls (bool show_menus)

Static Protected Member Functions
static bool	OpenVBI (const QString &vbi_dev_name)
static void	bitmask_toString (QString &result, uint32_t flags, uint32_t mask, const QString &desc)
static QString	ctrlflags_toString (uint32_t flags)
static QString	queryctrl_toString (int type)

Private Attributes
int	m_fd {-1}
int	m_vbiFd {-1}
DriverOption::Options	m_options
QString	m_deviceName
QString	m_driverName
QString	m_cardName
int	m_version {0}
uint32_t	m_capabilities {0}
bool	m_haveQueryExtCtrl {false}

Detailed Description

Definition at line 16 of file v4l2util.h.

Constructor & Destructor Documentation

V4L2util() [1/3]

V4L2util::V4L2util ( void  )

default

V4L2util() [2/3]

V4L2util::V4L2util ( const QString &  dev_name )

explicit

Definition at line 17 of file v4l2util.cpp.

V4L2util() [3/3]

V4L2util::V4L2util	(	const QString &	dev_name,
		const QString &	vbi_dev_name
	)

Definition at line 22 of file v4l2util.cpp.

~V4L2util()

V4L2util::~V4L2util

(

void

)

Definition at line 28 of file v4l2util.cpp.

Member Function Documentation

Open()

bool V4L2util::Open	(	const QString &	dev_name,
		const QString &	vbi_dev_name = ""
	)

Definition at line 33 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Open(), V4L2encStreamHandler::SetBitrateForResolution(), V4L2encSignalMonitor::V4L2encSignalMonitor(), and V4L2util().

Close()

void V4L2util::Close

(

void

)

Definition at line 82 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Close(), V4L2encStreamHandler::Configure(), Open(), V4L2encStreamHandler::Open(), V4L2encStreamHandler::SetBitrateForResolution(), and ~V4L2util().

FD()

int V4L2util::FD ( void  ) const

inline

Definition at line 26 of file v4l2util.h.

Referenced by MythV4L2M2MContext::GetProfiles().

operator!()

bool V4L2util::operator! ( void  ) const

inline

Definition at line 28 of file v4l2util.h.

IsOpen()

bool V4L2util::IsOpen ( void  ) const

inline

Definition at line 29 of file v4l2util.h.

Referenced by RecordingProfile::CompleteLoad(), CardUtil::GetInputTypes(), V4L2encSignalMonitor::HasLock(), V4L2encStreamHandler::IsOpen(), RecordingProfile::loadByType(), V4L2encStreamHandler::Open(), V4L2encGroup::probeCard(), and V4L2encSignalMonitor::V4L2encSignalMonitor().

GetOptions()

bool V4L2util::GetOptions

(

DriverOption::Options &

options

)

Definition at line 536 of file v4l2util.cpp.

Referenced by GetOptionValue().

GetOptionValue()

int V4L2util::GetOptionValue	(	DriverOption::category_t	cat,
		const QString &	desc
	)

Definition at line 564 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::SetOption().

GetFormats()

bool V4L2util::GetFormats

(

QStringList &

formats

)

Definition at line 509 of file v4l2util.cpp.

GetVideoStandard()

bool V4L2util::GetVideoStandard

(

QString &

name

)

const

Definition at line 593 of file v4l2util.cpp.

GetSignalStrength()

int V4L2util::GetSignalStrength

(

void

)

const

Definition at line 632 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::GetSignalStrength(), and V4L2encSignalMonitor::HasLock().

GetResolution()

bool V4L2util::GetResolution	(	int &	width,
		int &	height
	)		const

Definition at line 653 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::GetResolution(), V4L2encStreamHandler::SetBitrateForResolution(), and V4L2encSignalMonitor::StableResolution().

GetCapabilities()

uint32_t V4L2util::GetCapabilities

(

void

)

const

Definition at line 673 of file v4l2util.cpp.

Referenced by MythV4L2M2MContext::GetProfiles().

GetDeviceName()

QString V4L2util::GetDeviceName

(

void

)

const

Definition at line 678 of file v4l2util.cpp.

Referenced by MythV4L2M2MContext::GetProfiles().

GetDriverName()

QString V4L2util::GetDriverName

(

void

)

const

Definition at line 683 of file v4l2util.cpp.

Referenced by MythV4L2M2MContext::GetProfiles().

HasTuner()

bool V4L2util::HasTuner

(

void

)

const

Definition at line 688 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure(), V4L2encStreamHandler::HasTuner(), and CardUtil::HasTuner().

HasAudioSupport()

bool V4L2util::HasAudioSupport

(

void

)

const

Definition at line 693 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure(), and V4L2encStreamHandler::HasAudio().

HasStreaming()

bool V4L2util::HasStreaming

(

void

)

const

Definition at line 93 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::StartEncoding().

HasSlicedVBI()

bool V4L2util::HasSlicedVBI

(

void

)

const

Definition at line 117 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::HasSlicedVBI(), and V4L2encGroup::probeCard().

IsEncoder()

bool V4L2util::IsEncoder

(

void

)

const

Definition at line 698 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Open().

UserAdjustableResolution()

bool V4L2util::UserAdjustableResolution

(

void

)

const

Definition at line 707 of file v4l2util.cpp.

Referenced by RecordingProfile::CompleteLoad(), and V4L2encStreamHandler::StartEncoding().

DriverName()

QString V4L2util::DriverName ( void  ) const

inline

Definition at line 48 of file v4l2util.h.

Referenced by RecordingProfile::CompleteLoad(), V4L2encStreamHandler::Driver(), CardUtil::GetInputTypes(), GetStreamType(), V4L2encGroup::probeCard(), SetAudioCodec(), SetAudioSamplingRate(), and SetStreamType().

CardName()

QString V4L2util::CardName ( void  ) const

inline

Definition at line 49 of file v4l2util.h.

Referenced by CardUtil::GetInputTypes(), and V4L2encGroup::probeCard().

ProfileName()

QString V4L2util::ProfileName ( void  ) const

inline

Definition at line 50 of file v4l2util.h.

Referenced by RecordingProfile::loadByType().

GetStreamType()

int V4L2util::GetStreamType

(

void

)

const

Definition at line 798 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::GetStreamType(), and V4L2encSignalMonitor::V4L2encSignalMonitor().

SetStreamType()

bool V4L2util::SetStreamType

(

int

value

)

Definition at line 817 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure().

SetVideoAspect()

bool V4L2util::SetVideoAspect

(

int

value

)

Definition at line 831 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure().

SetVideoBitrateMode()

bool V4L2util::SetVideoBitrateMode

(

int

value

)

Definition at line 856 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure(), and V4L2encStreamHandler::SetBitrate().

SetVideoBitrate()

bool V4L2util::SetVideoBitrate

(

int

value

)

Definition at line 873 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure(), and V4L2encStreamHandler::SetBitrate().

SetVideoBitratePeak()

bool V4L2util::SetVideoBitratePeak

(

int

value

)

Definition at line 880 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure(), and V4L2encStreamHandler::SetBitrate().

SetResolution()

bool V4L2util::SetResolution	(	uint32_t	width,
		uint32_t	height
	)

Definition at line 887 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure().

SetAudioInput()

bool V4L2util::SetAudioInput

(

int

value

)

Definition at line 923 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure().

SetAudioCodec()

bool V4L2util::SetAudioCodec

(

int

value

)

Definition at line 948 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure().

SetVolume()

bool V4L2util::SetVolume

(

int

volume

)

Definition at line 992 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure().

SetLanguageMode()

bool V4L2util::SetLanguageMode

(

int

mode

)

Definition at line 1027 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::SetLanguageMode().

SetAudioSamplingRate()

bool V4L2util::SetAudioSamplingRate

(

int

value

)

Definition at line 1080 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure().

SetAudioBitrateL2()

bool V4L2util::SetAudioBitrateL2

(

int

value

)

Definition at line 1117 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure().

StartEncoding()

bool V4L2util::StartEncoding

(

void

)

Definition at line 1192 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::StartEncoding().

StopEncoding()

bool V4L2util::StopEncoding

(

void

)

Definition at line 1197 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::StopEncoding().

PauseEncoding()

bool V4L2util::PauseEncoding

(

void

)

Definition at line 1202 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::StopEncoding().

ResumeEncoding()

bool V4L2util::ResumeEncoding

(

void

)

Definition at line 1207 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::StartEncoding().

StreamTypeDesc()

QString V4L2util::StreamTypeDesc ( int  value )

static

Definition at line 778 of file v4l2util.cpp.

Referenced by V4L2encStreamHandler::Configure(), GetStreamType(), and SetStreamType().

OpenVBI()

bool V4L2util::OpenVBI ( const QString &  vbi_dev_name )

staticprotected

Definition at line 1212 of file v4l2util.cpp.

Referenced by Open().

SetSlicedVBI()

bool V4L2util::SetSlicedVBI ( VBIMode::vbimode_t  vbimode )

protected

Definition at line 1217 of file v4l2util.cpp.

GetExtControl()

int V4L2util::GetExtControl ( int  request, const QString &  ctrl_desc = ""  ) const

protected

Definition at line 715 of file v4l2util.cpp.

Referenced by GetStreamType(), and SetExtControl().

SetExtControl()

bool V4L2util::SetExtControl ( int  request, int  value, const QString &  ctrl_desc, const QString &  value_desc  )

protected

Definition at line 738 of file v4l2util.cpp.

Referenced by SetAudioBitrateL2(), SetAudioCodec(), SetAudioSamplingRate(), SetSlicedVBI(), SetStreamType(), SetVideoAspect(), SetVideoBitrate(), SetVideoBitrateMode(), and SetVideoBitratePeak().

SetEncoderState()

bool V4L2util::SetEncoderState ( int  mode, const QString &  desc  )

protected

Definition at line 1173 of file v4l2util.cpp.

Referenced by PauseEncoding(), ResumeEncoding(), StartEncoding(), and StopEncoding().

SetDefaultOptions()

void V4L2util::SetDefaultOptions ( DriverOption::Options &  options )

protected

Definition at line 427 of file v4l2util.cpp.

Referenced by GetOptions().

bitmask_toString()

void V4L2util::bitmask_toString ( QString &  result, uint32_t  flags, uint32_t  mask, const QString &  desc  )

staticprotected

Definition at line 122 of file v4l2util.cpp.

Referenced by ctrlflags_toString().

ctrlflags_toString()

QString V4L2util::ctrlflags_toString ( uint32_t  flags )

staticprotected

Definition at line 133 of file v4l2util.cpp.

Referenced by log_qctrl().

queryctrl_toString()

QString V4L2util::queryctrl_toString ( int  type )

staticprotected

Definition at line 161 of file v4l2util.cpp.

Referenced by log_qctrl().

log_qctrl()

void V4L2util::log_qctrl ( struct v4l2_queryctrl &  queryctrl, DriverOption &  drv_opt, QString &  msg  )

protected

Definition at line 192 of file v4l2util.cpp.

Referenced by log_control().

log_control()

bool V4L2util::log_control ( struct v4l2_queryctrl &  qctrl, DriverOption &  drv_opt, QString &  msg  )

protected

Definition at line 353 of file v4l2util.cpp.

Referenced by GetOptions().

log_controls()

void V4L2util::log_controls ( bool  show_menus )

protected

Member Data Documentation

m_fd

int V4L2util::m_fd {-1}

private

Definition at line 99 of file v4l2util.h.

Referenced by Close(), GetExtControl(), GetFormats(), GetOptions(), GetResolution(), GetSignalStrength(), GetVideoStandard(), HasStreaming(), IsEncoder(), log_control(), log_qctrl(), Open(), SetAudioInput(), SetEncoderState(), SetExtControl(), SetLanguageMode(), SetResolution(), SetSlicedVBI(), and SetVolume().

m_vbiFd

int V4L2util::m_vbiFd {-1}

private

Definition at line 100 of file v4l2util.h.

Referenced by SetSlicedVBI().

m_options

DriverOption::Options V4L2util::m_options

private

Definition at line 101 of file v4l2util.h.

Referenced by Close(), GetOptions(), and GetOptionValue().

m_deviceName

QString V4L2util::m_deviceName

private

Definition at line 102 of file v4l2util.h.

Referenced by GetDeviceName(), and Open().

m_driverName

QString V4L2util::m_driverName

private

Definition at line 103 of file v4l2util.h.

Referenced by GetDriverName(), Open(), and UserAdjustableResolution().

m_cardName

QString V4L2util::m_cardName

private

Definition at line 104 of file v4l2util.h.

Referenced by Open().

m_version

int V4L2util::m_version {0}

private

Definition at line 105 of file v4l2util.h.

Referenced by Open().

m_capabilities

uint32_t V4L2util::m_capabilities {0}

private

Definition at line 106 of file v4l2util.h.

Referenced by GetCapabilities(), HasAudioSupport(), HasSlicedVBI(), HasStreaming(), HasTuner(), and Open().

m_haveQueryExtCtrl

bool V4L2util::m_haveQueryExtCtrl {false}

private

Definition at line 107 of file v4l2util.h.

Referenced by Open().

---

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

• v4l2util.h
• v4l2util.cpp