MHIContext Class Reference

Contains various utility functions for interactive television. More...

#include <mhi.h>

Inheritance diagram for MHIContext:

Public Member Functions
	MHIContext (InteractiveTV *parent)
virtual	~MHIContext ()
void	QueueDSMCCPacket (unsigned char *data, int length, int componentTag, unsigned carouselId, int dataBroadcastId)
void	SetNetBootInfo (const unsigned char *data, uint length)
void	Restart (int chanid, int sourceid, bool isLive)
	Restart the MHEG engine.
bool	OfferKey (QString key)
void	UpdateOSD (InteractiveScreen osdWindow, MythPainter osdPainter)
	Update the display.
void	Reinit (const QRect &display)
	The display area has changed.
void	StopEngine (void)
	Stop the MHEG engine if it's running and waits until it has.
virtual bool	CheckCarouselObject (QString objectPath)
virtual bool	GetCarouselData (QString objectPath, QByteArray &result)
virtual void	SetInputRegister (int nReg)
virtual void	RequireRedraw (const QRegion &region)
	An area of the screen/image needs to be redrawn.
virtual bool	CheckStop (void)
	Check whether we have requested a stop.
void	GetInitialStreams (int &audioTag, int &videoTag)
	Get the initial component tags.
virtual MHDLADisplay *	CreateDynamicLineArt (bool isBoxed, MHRgba lineColour, MHRgba fillColour)
	Creation functions for various visibles.
virtual MHTextDisplay *	CreateText (void)
virtual MHBitmapDisplay *	CreateBitmap (bool tiling)
virtual void	DrawRect (int xPos, int yPos, int width, int height, MHRgba colour)
	Additional drawing functions.
virtual void	DrawBackground (const QRegion &reg)
virtual void	DrawVideo (const QRect &videoRect, const QRect &displayRect)
void	DrawImage (int x, int y, const QRect &rect, const QImage &image)
virtual int	GetChannelIndex (const QString &str)
virtual bool	GetServiceInfo (int channelId, int &netId, int &origNetId, int &transportId, int &serviceId)
	Get netId etc from the channel index.
virtual bool	TuneTo (int channel, int tuneinfo)
virtual bool	BeginAudio (const QString &stream, int tag)
	Begin playing audio from the specified stream.
virtual void	StopAudio (void)
	Stop playing audio.
virtual bool	BeginVideo (const QString &stream, int tag)
	Begin displaying video from the specified stream.
virtual void	StopVideo (void)
	Stop displaying video.
virtual const char *	GetReceiverId (void)
virtual const char *	GetDSMCCId (void)
void	AddToDisplay (const QImage &image, int x, int y)
FT_Face	GetFontFace (void)
bool	IsFaceLoaded (void)
bool	LoadFont (QString name)
bool	ImageUpdated (void)
int	GetWidth (void)
int	GetHeight (void)
Static Public Attributes
static const int	StdDisplayWidth = 720
static const int	StdDisplayHeight = 576
Protected Member Functions
void	run (void)
void	ProcessDSMCCQueue (void)
void	NetworkBootRequested (void)
void	ClearDisplay (void)
void	ClearQueue (void)
Protected Attributes
InteractiveTV *	m_parent
Dsmcc *	m_dsmcc
QMutex	m_dsmccLock
MythDeque< DSMCCPacket * >	m_dsmccQueue
QMutex	m_keyLock
MythDeque< int >	m_keyQueue
int	m_keyProfile
MHEG *	m_engine
QMutex	m_runLock
QWaitCondition	m_engine_wait
bool	m_stop
QMutex	m_display_lock
bool	m_updated
int	m_displayWidth
int	m_displayHeight
float	m_xScale
float	m_yScale
list< MHIImageData * >	m_display
FT_Face	m_face
bool	m_face_loaded
MThread *	m_engineThread
int	m_currentChannel
int	m_currentStream
bool	m_isLive
int	m_currentSource
int	m_audioTag
int	m_videoTag
QList< int >	m_tuneinfo
uint	m_lastNbiVersion
vector< unsigned char >	m_nbiData
QRect	m_videoRect
QRect	m_displayRect

Detailed Description

Contains various utility functions for interactive television.

Definition at line 42 of file mhi.h.

Constructor & Destructor Documentation

MHIContext::MHIContext ( InteractiveTV * parent )

Definition at line 52 of file mhi.cpp.

MHIContext::~MHIContext ( ) [virtual]

Definition at line 114 of file mhi.cpp.

Member Function Documentation

void MHIContext::QueueDSMCCPacket	(	unsigned char *	data,
		int	length,
		int	componentTag,
		unsigned	carouselId,
		int	dataBroadcastId
	)

Definition at line 287 of file mhi.cpp.

Referenced by InteractiveTV::ProcessDSMCCSection().

void MHIContext::SetNetBootInfo	(	const unsigned char *	data,
		uint	length
	)

Definition at line 309 of file mhi.cpp.

Referenced by InteractiveTV::SetNetBootInfo().

void MHIContext::Restart	(	int	chanid,
		int	sourceid,
		bool	isLive
	)

Restart the MHEG engine.

Definition at line 159 of file mhi.cpp.

Referenced by InteractiveTV::Restart().

bool MHIContext::OfferKey ( QString key )

Definition at line 407 of file mhi.cpp.

Referenced by InteractiveTV::OfferKey().

void MHIContext::UpdateOSD	(	InteractiveScreen *	osdWindow,
		MythPainter *	osdPainter
	)

Update the display.

Definition at line 502 of file mhi.cpp.

Referenced by InteractiveTV::UpdateOSD().

void MHIContext::Reinit ( const QRect & display )

The display area has changed.

Definition at line 483 of file mhi.cpp.

Referenced by InteractiveTV::Reinit().

void MHIContext::StopEngine ( void )

Stop the MHEG engine if it's running and waits until it has.

Definition at line 142 of file mhi.cpp.

Referenced by Restart(), and ~MHIContext().

bool MHIContext::CheckCarouselObject ( QString objectPath ) [virtual]

Implements MHContext.

Definition at line 360 of file mhi.cpp.

bool MHIContext::GetCarouselData	(	QString	objectPath,
		QByteArray &	result
	)			`[virtual]`

Implements MHContext.

Definition at line 369 of file mhi.cpp.

void MHIContext::SetInputRegister ( int nReg ) [virtual]

Implements MHContext.

Definition at line 493 of file mhi.cpp.

void MHIContext::RequireRedraw ( const QRegion & region ) [virtual]

An area of the screen/image needs to be redrawn.

Implements MHContext.

Definition at line 545 of file mhi.cpp.

virtual bool MHIContext::CheckStop ( void ) [inline, virtual]

Check whether we have requested a stop.

Implements MHContext.

Definition at line 86 of file mhi.h.

void MHIContext::GetInitialStreams	(	int &	audioTag,
		int &	videoTag
	)

Get the initial component tags.

Definition at line 535 of file mhi.cpp.

Referenced by InteractiveTV::GetInitialStreams().

MHDLADisplay * MHIContext::CreateDynamicLineArt	(	bool	isBoxed,
		MHRgba	lineColour,
		MHRgba	fillColour
	)			`[virtual]`

Creation functions for various visibles.

Implements MHContext.

Definition at line 821 of file mhi.cpp.

MHTextDisplay * MHIContext::CreateText ( void ) [virtual]

Implements MHContext.

Definition at line 828 of file mhi.cpp.

MHBitmapDisplay * MHIContext::CreateBitmap ( bool tiling ) [virtual]

Implements MHContext.

Definition at line 834 of file mhi.cpp.

void MHIContext::DrawRect	(	int	xPos,
		int	yPos,
		int	width,
		int	height,
		MHRgba	colour
	)			`[virtual]`

Additional drawing functions.

Implements MHContext.

Definition at line 840 of file mhi.cpp.

Referenced by MHIDLA::Draw(), and DrawBackground().

void MHIContext::DrawBackground ( const QRegion & reg ) [virtual]

Implements MHContext.

Definition at line 910 of file mhi.cpp.

void MHIContext::DrawVideo	(	const QRect &	videoRect,
		const QRect &	displayRect
	)			`[virtual]`

Implements MHContext.

Definition at line 575 of file mhi.cpp.

void MHIContext::DrawImage	(	int	x,
		int	y,
		const QRect &	rect,
		const QImage &	image
	)

Definition at line 869 of file mhi.cpp.

Referenced by MHIBitmap::Draw(), MHIDLA::Draw(), and MHIText::Draw().

int MHIContext::GetChannelIndex ( const QString & str ) [virtual]

Implements MHContext.

Definition at line 635 of file mhi.cpp.

Referenced by BeginAudio(), and BeginVideo().

bool MHIContext::GetServiceInfo	(	int	channelId,
		int &	netId,
		int &	origNetId,
		int &	transportId,
		int &	serviceId
	)			`[virtual]`

Get netId etc from the channel index.

Implements MHContext.

Definition at line 717 of file mhi.cpp.

bool MHIContext::TuneTo	(	int	channel,
		int	tuneinfo
	)			`[virtual]`

Implements MHContext.

Definition at line 738 of file mhi.cpp.

Referenced by BeginAudio(), and BeginVideo().

bool MHIContext::BeginAudio	(	const QString &	stream,
		int	tag
	)			`[virtual]`

Begin playing audio from the specified stream.

Implements MHContext.

Definition at line 759 of file mhi.cpp.

void MHIContext::StopAudio ( void ) [virtual]

Stop playing audio.

Implements MHContext.

Definition at line 786 of file mhi.cpp.

bool MHIContext::BeginVideo	(	const QString &	stream,
		int	tag
	)			`[virtual]`

Begin displaying video from the specified stream.

Implements MHContext.

Definition at line 792 of file mhi.cpp.

void MHIContext::StopVideo ( void ) [virtual]

Stop displaying video.

Implements MHContext.

Definition at line 815 of file mhi.cpp.

virtual const char* MHIContext::GetReceiverId ( void ) [inline, virtual]

Implements MHContext.

Definition at line 121 of file mhi.h.

virtual const char* MHIContext::GetDSMCCId ( void ) [inline, virtual]

Implements MHContext.

Definition at line 123 of file mhi.h.

void MHIContext::AddToDisplay	(	const QImage &	image,
		int	x,
		int	y
	)

Definition at line 555 of file mhi.cpp.

Referenced by DrawImage(), and DrawRect().

FT_Face MHIContext::GetFontFace ( void ) [inline]

Definition at line 130 of file mhi.h.

Referenced by MHIText::AddText(), and MHIText::GetBounds().

bool MHIContext::IsFaceLoaded ( void ) [inline]

Definition at line 131 of file mhi.h.

Referenced by MHIText::AddText(), and MHIText::GetBounds().

bool MHIContext::LoadFont ( QString name )

Definition at line 84 of file mhi.cpp.

Referenced by MHIContext().

bool MHIContext::ImageUpdated ( void ) [inline]

Definition at line 133 of file mhi.h.

Referenced by InteractiveTV::ImageHasChanged().

int MHIContext::GetWidth ( void ) [inline]

Definition at line 137 of file mhi.h.

int MHIContext::GetHeight ( void ) [inline]

Definition at line 138 of file mhi.h.

void MHIContext::run ( void ) [protected]

Definition at line 226 of file mhi.cpp.

void MHIContext::ProcessDSMCCQueue ( void ) [protected]

Definition at line 265 of file mhi.cpp.

Referenced by GetCarouselData(), and run().

void MHIContext::NetworkBootRequested ( void ) [protected]

Definition at line 334 of file mhi.cpp.

Referenced by run().

void MHIContext::ClearDisplay ( void ) [protected]

Definition at line 125 of file mhi.cpp.

Referenced by NetworkBootRequested(), RequireRedraw(), Restart(), and ~MHIContext().

void MHIContext::ClearQueue ( void ) [protected]

Definition at line 133 of file mhi.cpp.

Referenced by Restart(), and ~MHIContext().

Member Data Documentation

const int MHIContext::StdDisplayWidth = 720 [static]

Definition at line 135 of file mhi.h.

Referenced by MHIContext(), Reinit(), and RequireRedraw().

const int MHIContext::StdDisplayHeight = 576 [static]

Definition at line 136 of file mhi.h.

Referenced by MHIContext(), Reinit(), and RequireRedraw().

InteractiveTV* MHIContext::m_parent [protected]

Definition at line 147 of file mhi.h.

Referenced by BeginAudio(), BeginVideo(), and DrawVideo().

Dsmcc* MHIContext::m_dsmcc [protected]

Definition at line 149 of file mhi.h.

Referenced by CheckCarouselObject(), GetCarouselData(), NetworkBootRequested(), ProcessDSMCCQueue(), Restart(), and ~MHIContext().

QMutex MHIContext::m_dsmccLock [protected]

Definition at line 150 of file mhi.h.

Referenced by NetworkBootRequested(), ProcessDSMCCQueue(), QueueDSMCCPacket(), Restart(), SetNetBootInfo(), and TuneTo().

MythDeque<DSMCCPacket*> MHIContext::m_dsmccQueue [protected]

Definition at line 151 of file mhi.h.

Referenced by ClearQueue(), ProcessDSMCCQueue(), and QueueDSMCCPacket().

QMutex MHIContext::m_keyLock [protected]

Definition at line 153 of file mhi.h.

Referenced by OfferKey(), Restart(), run(), and SetInputRegister().

MythDeque<int> MHIContext::m_keyQueue [protected]

Definition at line 154 of file mhi.h.

Referenced by OfferKey(), Restart(), run(), and SetInputRegister().

int MHIContext::m_keyProfile [protected]

Definition at line 155 of file mhi.h.

Referenced by OfferKey(), and SetInputRegister().

MHEG* MHIContext::m_engine [protected]

Definition at line 157 of file mhi.h.

Referenced by NetworkBootRequested(), RequireRedraw(), Restart(), run(), and ~MHIContext().

QMutex MHIContext::m_runLock [mutable, protected]

Definition at line 159 of file mhi.h.

Referenced by GetCarouselData(), OfferKey(), QueueDSMCCPacket(), run(), SetNetBootInfo(), and StopEngine().

QWaitCondition MHIContext::m_engine_wait [protected]

Definition at line 160 of file mhi.h.

Referenced by GetCarouselData(), OfferKey(), QueueDSMCCPacket(), run(), SetNetBootInfo(), and StopEngine().

bool MHIContext::m_stop [protected]

Definition at line 161 of file mhi.h.

Referenced by CheckStop(), GetCarouselData(), Restart(), run(), and StopEngine().

QMutex MHIContext::m_display_lock [protected]

Definition at line 162 of file mhi.h.

Referenced by AddToDisplay(), DrawVideo(), RequireRedraw(), and UpdateOSD().

bool MHIContext::m_updated [protected]

Definition at line 163 of file mhi.h.

Referenced by ImageUpdated(), NetworkBootRequested(), RequireRedraw(), Restart(), and UpdateOSD().

int MHIContext::m_displayWidth [protected]

Definition at line 164 of file mhi.h.

Referenced by GetWidth(), MHIContext(), and Reinit().

int MHIContext::m_displayHeight [protected]

Definition at line 165 of file mhi.h.

Referenced by GetHeight(), MHIContext(), and Reinit().

float MHIContext::m_xScale [protected]

Definition at line 166 of file mhi.h.

Referenced by MHIContext(), and Reinit().

float MHIContext::m_yScale [protected]

Definition at line 167 of file mhi.h.

Referenced by MHIContext(), and Reinit().

list<MHIImageData*> MHIContext::m_display [protected]

Definition at line 169 of file mhi.h.

Referenced by AddToDisplay(), ClearDisplay(), DrawVideo(), and UpdateOSD().

FT_Face MHIContext::m_face [protected]

Definition at line 171 of file mhi.h.

Referenced by GetFontFace(), LoadFont(), and ~MHIContext().

bool MHIContext::m_face_loaded [protected]

Definition at line 172 of file mhi.h.

Referenced by IsFaceLoaded(), MHIContext(), and ~MHIContext().

MThread* MHIContext::m_engineThread [protected]

Definition at line 174 of file mhi.h.

Referenced by Restart(), and StopEngine().

int MHIContext::m_currentChannel [protected]

Definition at line 176 of file mhi.h.

Referenced by GetChannelIndex(), and Restart().

int MHIContext::m_currentStream [protected]

Definition at line 177 of file mhi.h.

Referenced by BeginAudio(), BeginVideo(), GetChannelIndex(), and Restart().

bool MHIContext::m_isLive [protected]

Definition at line 178 of file mhi.h.

Referenced by Restart(), and TuneTo().

int MHIContext::m_currentSource [protected]

Definition at line 179 of file mhi.h.

Referenced by GetChannelIndex(), and Restart().

int MHIContext::m_audioTag [protected]

Definition at line 181 of file mhi.h.

Referenced by BeginAudio(), GetInitialStreams(), and Restart().

int MHIContext::m_videoTag [protected]

Definition at line 182 of file mhi.h.

Referenced by BeginVideo(), GetInitialStreams(), and Restart().

QList<int> MHIContext::m_tuneinfo [protected]

Definition at line 183 of file mhi.h.

Referenced by Restart(), and TuneTo().

uint MHIContext::m_lastNbiVersion [protected]

Definition at line 185 of file mhi.h.

Referenced by NetworkBootRequested(), SetNetBootInfo(), and TuneTo().

vector<unsigned char> MHIContext::m_nbiData [protected]

Definition at line 186 of file mhi.h.

Referenced by NetworkBootRequested(), SetNetBootInfo(), and TuneTo().

QRect MHIContext::m_videoRect [protected]

Definition at line 188 of file mhi.h.

Referenced by DrawVideo(), and Reinit().

QRect MHIContext::m_displayRect [protected]

Definition at line 189 of file mhi.h.

Referenced by AddToDisplay(), DrawVideo(), and Reinit().

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

MHIContext Class Reference

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation