MHIContext Class Reference

#include <mhi.h>

Inheritance diagram for MHIContext:

Detailed Description

Contains various utility functions for interactive television.

Definition at line 41 of file mhi.h.


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 (uint chanid, uint cardid, bool isLive)
	Restart the MHEG engine.
bool	OfferKey (QString key)
void	UpdateOSD (OSDSet *osdSet)
	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)
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	RunMHEGEngine (void)
void	ProcessDSMCCQueue (void)
void	NetworkBootRequested (void)
Static Protected Member Functions
static void *	StartMHEGEngine (void *param)
Protected Attributes
InteractiveTV *	m_parent
Dsmcc *	m_dsmcc
QMutex	m_dsmccLock
QPtrQueue< DSMCCPacket >	m_dsmccQueue
QMutex	m_keyLock
QValueList< int >	m_keyQueue
int	m_keyProfile
MHEG *	m_engine
QWaitCondition	m_engine_wait
bool	m_stop
bool	m_stopped
QMutex	m_display_lock
bool	m_updated
int	m_displayWidth
int	m_displayHeight
QPtrList< MHIImageData >	m_display
FT_Face	m_face
bool	m_face_loaded
pthread_t	m_engineThread
int	m_currentChannel
bool	m_isLive
int	m_currentCard
int	m_audioTag
int	m_videoTag
int	m_tuningTo
uint	m_lastNbiVersion
QMemArray< unsigned char >	m_nbiData
QRect	m_videoRect

Constructor & Destructor Documentation

MHIContext::MHIContext ( InteractiveTV * parent )

Definition at line 30 of file mhi.cpp.

MHIContext::~MHIContext ( ) [virtual]

Definition at line 87 of file mhi.cpp.

Member Function Documentation

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

Definition at line 238 of file mhi.cpp.

Referenced by InteractiveTV::ProcessDSMCCSection().

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

Definition at line 257 of file mhi.cpp.

Referenced by InteractiveTV::SetNetBootInfo().

void MHIContext::Restart	(	uint	chanid,
		uint	cardid,
		bool	isLive
	)

Restart the MHEG engine.

Definition at line 112 of file mhi.cpp.

Referenced by InteractiveTV::Restart().

bool MHIContext::OfferKey ( QString key )

Definition at line 328 of file mhi.cpp.

Referenced by InteractiveTV::OfferKey().

void MHIContext::UpdateOSD ( OSDSet * osdSet )

Update the display.

Definition at line 418 of file mhi.cpp.

Referenced by InteractiveTV::UpdateOSD().

void MHIContext::Reinit ( const QRect & display )

The display area has changed.

Definition at line 402 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 96 of file mhi.cpp.

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

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

Implements MHContext.

Definition at line 291 of file mhi.cpp.

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

Implements MHContext.

Definition at line 300 of file mhi.cpp.

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

Implements MHContext.

Definition at line 409 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 444 of file mhi.cpp.

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

Check whether we have requested a stop.

Implements MHContext.

Definition at line 85 of file mhi.h.

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

Get the initial component tags.

Definition at line 434 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 744 of file mhi.cpp.

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

Implements MHContext.

Definition at line 751 of file mhi.cpp.

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

Implements MHContext.

Definition at line 757 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 763 of file mhi.cpp.

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

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

Implements MHContext.

Definition at line 839 of file mhi.cpp.

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

Implements MHContext.

Definition at line 515 of file mhi.cpp.

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

Definition at line 795 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 572 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 654 of file mhi.cpp.

bool MHIContext::TuneTo ( int channel ) [virtual]

Implements MHContext.

Definition at line 674 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 690 of file mhi.cpp.

void MHIContext::StopAudio ( void ) [virtual]

Stop playing audio.

Implements MHContext.

Definition at line 713 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 719 of file mhi.cpp.

void MHIContext::StopVideo ( void ) [virtual]

Stop displaying video.

Implements MHContext.

Definition at line 738 of file mhi.cpp.

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

Implements MHContext.

Definition at line 120 of file mhi.h.

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

Implements MHContext.

Definition at line 122 of file mhi.h.

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

Definition at line 454 of file mhi.cpp.

Referenced by DrawImage(), and DrawRect().

FT_Face MHIContext::GetFontFace ( void ) [inline]

Definition at line 129 of file mhi.h.

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

bool MHIContext::IsFaceLoaded ( void ) [inline]

Definition at line 130 of file mhi.h.

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

bool MHIContext::LoadFont ( QString name )

Definition at line 61 of file mhi.cpp.

Referenced by MHIContext().

bool MHIContext::ImageUpdated ( void ) [inline]

Definition at line 132 of file mhi.h.

Referenced by InteractiveTV::ImageHasChanged().

int MHIContext::GetWidth ( void ) [inline]

Definition at line 136 of file mhi.h.

Referenced by DrawImage(), and DrawRect().

int MHIContext::GetHeight ( void ) [inline]

Definition at line 137 of file mhi.h.

Referenced by DrawImage(), and DrawRect().

void * MHIContext::StartMHEGEngine ( void * param ) [static, protected]

Definition at line 168 of file mhi.cpp.

Referenced by Restart().

void MHIContext::RunMHEGEngine ( void ) [protected]

Definition at line 177 of file mhi.cpp.

Referenced by StartMHEGEngine().

void MHIContext::ProcessDSMCCQueue ( void ) [protected]

Definition at line 216 of file mhi.cpp.

Referenced by GetCarouselData(), and RunMHEGEngine().

void MHIContext::NetworkBootRequested ( void ) [protected]

Definition at line 273 of file mhi.cpp.

Referenced by RunMHEGEngine().

Member Data Documentation

const int MHIContext::StdDisplayWidth = 720 [static]

Definition at line 134 of file mhi.h.

Referenced by DrawImage(), DrawRect(), DrawVideo(), and RequireRedraw().

const int MHIContext::StdDisplayHeight = 576 [static]

Definition at line 135 of file mhi.h.

Referenced by DrawImage(), DrawRect(), DrawVideo(), and RequireRedraw().

InteractiveTV* MHIContext::m_parent [protected]

Definition at line 145 of file mhi.h.

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

Dsmcc* MHIContext::m_dsmcc [protected]

Definition at line 147 of file mhi.h.

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

QMutex MHIContext::m_dsmccLock [protected]

Definition at line 148 of file mhi.h.

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

QPtrQueue<DSMCCPacket> MHIContext::m_dsmccQueue [protected]

Definition at line 149 of file mhi.h.

Referenced by MHIContext(), ProcessDSMCCQueue(), QueueDSMCCPacket(), and Restart().

QMutex MHIContext::m_keyLock [protected]

Definition at line 151 of file mhi.h.

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

QValueList<int> MHIContext::m_keyQueue [protected]

Definition at line 152 of file mhi.h.

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

int MHIContext::m_keyProfile [protected]

Definition at line 153 of file mhi.h.

Referenced by OfferKey(), and SetInputRegister().

MHEG* MHIContext::m_engine [protected]

Definition at line 155 of file mhi.h.

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

QWaitCondition MHIContext::m_engine_wait [protected]

Definition at line 157 of file mhi.h.

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

bool MHIContext::m_stop [protected]

Definition at line 158 of file mhi.h.

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

bool MHIContext::m_stopped [protected]

Definition at line 159 of file mhi.h.

Referenced by Restart(), StartMHEGEngine(), and StopEngine().

QMutex MHIContext::m_display_lock [protected]

Definition at line 160 of file mhi.h.

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

bool MHIContext::m_updated [protected]

Definition at line 161 of file mhi.h.

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

int MHIContext::m_displayWidth [protected]

Definition at line 162 of file mhi.h.

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

int MHIContext::m_displayHeight [protected]

Definition at line 163 of file mhi.h.

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

QPtrList<MHIImageData> MHIContext::m_display [protected]

Definition at line 166 of file mhi.h.

Referenced by AddToDisplay(), DrawVideo(), MHIContext(), NetworkBootRequested(), RequireRedraw(), Restart(), and UpdateOSD().

FT_Face MHIContext::m_face [protected]

Definition at line 168 of file mhi.h.

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

bool MHIContext::m_face_loaded [protected]

Definition at line 169 of file mhi.h.

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

pthread_t MHIContext::m_engineThread [protected]

Definition at line 171 of file mhi.h.

Referenced by Restart(), and StopEngine().

int MHIContext::m_currentChannel [protected]

Definition at line 173 of file mhi.h.

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

bool MHIContext::m_isLive [protected]

Definition at line 174 of file mhi.h.

Referenced by Restart(), and TuneTo().

int MHIContext::m_currentCard [protected]

Definition at line 175 of file mhi.h.

Referenced by GetChannelIndex(), and Restart().

int MHIContext::m_audioTag [protected]

Definition at line 177 of file mhi.h.

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

int MHIContext::m_videoTag [protected]

Definition at line 178 of file mhi.h.

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

int MHIContext::m_tuningTo [protected]

Definition at line 179 of file mhi.h.

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

uint MHIContext::m_lastNbiVersion [protected]

Definition at line 181 of file mhi.h.

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

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

Definition at line 182 of file mhi.h.

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

QRect MHIContext::m_videoRect [protected]

Definition at line 184 of file mhi.h.

Referenced by DrawVideo(), and Reinit().

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

MHIContext Class Reference

Detailed Description

Public Member Functions

Static Public Attributes

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation