Description

The ToiFrontendService is the entry interface for dealing with frontends using such as DVB-T, DVB-C etc. From this interface scanner instances may be created by applications to scan these frontends for services. Frontend downloader instances may also be created to download software required to perform software upgrades or updates to splash screens. In addition to this the interface can also be used to enumerate frontends and retrieve information about their capabilities etc.

See also:: ToiScanner; ToiDvbTScanner; ToiDvbCScanner; ToiFrontendDownloader

Service:: This is a service and can be accessed through toi.frontendService

import "ToiFrontendService.idl";

Inheritance diagram for ToiFrontendService:

List of all members.

Public Member Functions
ToiOperationManager	getOperationManager ()
ToiDvbTScanner	createDvbTScanner (in TToiFrontendId frontendId) raises (TToiInvalidArgumentException, TToiNotEnoughResourcesException, TToiOperationNotSupportedException)
ToiDvbCScanner	createDvbCScanner (in TToiFrontendId frontendId) raises (TToiInvalidArgumentException, TToiNotEnoughResourcesException, TToiOperationNotSupportedException)
ToiFrontendDownloader	createFrontendDownloader (in TToiFrontendId frontendId) raises (TToiInvalidArgumentException, TToiNotEnoughResourcesException, TToiOperationNotSupportedException)
TToiFrontendIdSequence	getFrontends () raises (TToiOperationNotSupportedException)
ToiFrontendServiceFrontendInfo	getFrontendInfo (in TToiFrontendId frontendId) raises (TToiInvalidArgumentException, TToiNoDataException, TToiOperationNotSupportedException)
ToiFrontendServiceFrontendInfo	getFrontendInfoBySession (in ToiMediaSession::TToiSessionId sessionId) raises (TToiInvalidArgumentException, TToiNoDataException, TToiOperationNotSupportedException)
Public Attributes
const TToiFrontendId	FRONTEND_ID_ANY_FREE = -1
Events
const long	ON_LOCK_STATE_CHANGED = 3000
Property constants
Constants for extended frontend property identifiers.
const TToiPropertyId	PROPERTY_SIGNAL_STRENGTH_INDICATOR = 1

const TToiPropertyId	PROPERTY_SIGNAL_QUALITY_INDICATOR = 2

const TToiPropertyId	PROPERTY_DERIVED_CHANNEL_ID = 3
TToiModulationSystem
const TToiModulationSystem	CAPABILITY_SYSTEM_DVB_C = 0x1
const TToiModulationSystem	CAPABILITY_SYSTEM_DVB_S = 0x2
const TToiModulationSystem	CAPABILITY_SYSTEM_DVB_S2 = 0x4
const TToiModulationSystem	CAPABILITY_SYSTEM_DVB_T = 0x8
const TToiModulationSystem	CAPABILITY_SYSTEM_ISDB_C = 0x10
const TToiModulationSystem	CAPABILITY_SYSTEM_ISDB_S = 0x20
const TToiModulationSystem	CAPABILITY_SYSTEM_ISDB_T = 0x40
const TToiModulationSystem	CAPABILITY_SYSTEM_SBTVD = 0x80
const TToiModulationSystem	CAPABILITY_SYSTEM_SCTE = 0x100
const TToiModulationSystem	CAPABILITY_SYSTEM_ATSC = 0x200
TToiChannelBandwidth
const TToiChannelBandwidth	CAPABILITY_BANDWIDTH_1_8MHZ = 0x1
const TToiChannelBandwidth	CAPABILITY_BANDWIDTH_5MHZ = 0x2
const TToiChannelBandwidth	CAPABILITY_BANDWIDTH_6MHZ = 0x4
const TToiChannelBandwidth	CAPABILITY_BANDWIDTH_7MHZ = 0x8
const TToiChannelBandwidth	CAPABILITY_BANDWIDTH_8MHZ = 0x10
TToiModulationMode
const TToiModulationMode	CAPABILITY_MODULATION_QAM_16 = 0x1
const TToiModulationMode	CAPABILITY_MODULATION_QAM_32 = 0x2
const TToiModulationMode	CAPABILITY_MODULATION_QAM_64 = 0x4
const TToiModulationMode	CAPABILITY_MODULATION_QAM_128 = 0x8
const TToiModulationMode	CAPABILITY_MODULATION_QAM_256 = 0x10
const TToiModulationMode	CAPABILITY_MODULATION_QPSK = 0x20
const TToiModulationMode	CAPABILITY_MODULATION_DVS178_QPSK = 0x40
Public Types
typedef long	TToiFrontendId
typedef sequence< TToiFrontendId >	TToiFrontendIdSequence
typedef long	TToiPropertyId
typedef sequence < ToiFrontendServiceProperty >	TToiPropertySequence
typedef long	TToiModulationSystem
typedef long	TToiChannelBandwidth
typedef long	TToiModulationMode

Member Typedef Documentation

typedef long ToiFrontendService::TToiChannelBandwidth

Specifies the bit-map position for channel bandwidth capabilities.

typedef long ToiFrontendService::TToiFrontendId

Identifier for a frontend, starting from 0

typedef sequence< TToiFrontendId > ToiFrontendService::TToiFrontendIdSequence

Sequence of frontend identifiers.

typedef long ToiFrontendService::TToiModulationMode

Specifies the bit-map position for modulation mode capabilities.

typedef long ToiFrontendService::TToiModulationSystem

Specifies the bit-map position for modulation system capabilities.

typedef long ToiFrontendService::TToiPropertyId

Identifier for a frontend property

typedef sequence< ToiFrontendServiceProperty > ToiFrontendService::TToiPropertySequence

Sequence of properties.

Member Function Documentation

ToiDvbCScanner ToiFrontendService::createDvbCScanner ( in TToiFrontendId frontendId ) raises (TToiInvalidArgumentException, TToiNotEnoughResourcesException, TToiOperationNotSupportedException)

This function creates a new DVB-C scanner instance and associates it with the calling application. System resources are allocated when this function is called and released when ToiScanner::releaseInstance() is called.

When the application no longer needs the scanner instance, it must release it by calling ToiScanner::releaseInstance().

Parameters:

frontendId The frontend identifier which will be used to bind this specific frontend for the scan operation.

Return values:

IToiDvbCScanner
scannerAddress	The address to the ToiDvbCScanner instance.

Exceptions:

TToiInvalidArgumentException	Raised if the specified application identifier is invalid, or if frontend id is invalid.
TToiNotEnoughResourcesException	Raised if the specified frontend resource is in use.
TToiOperationNotSupportedException	Raised if DVB-C is not supported.

See also:: ToiScanner; ToiDvbCScanner; ToiScanner::releaseInstance()

ToiDvbTScanner ToiFrontendService::createDvbTScanner ( in TToiFrontendId frontendId ) raises (TToiInvalidArgumentException, TToiNotEnoughResourcesException, TToiOperationNotSupportedException)

Technical Preview:: This method is a TECHNICAL PREVIEW, it may change. This function creates a new DVB-T scanner instance and associates it with the calling application. System resources are allocated when this function is called and released when ToiScanner::releaseInstance() is called.

When the application no longer needs the scanner instance, it must release it by calling ToiScanner::releaseInstance().

Parameters:

frontendId The frontend identifier which will be used to bind this specific frontend for the scan operation.

Return values:

IToiDvbTScanner
scannerAddress	The address to the ToiDvbTScanner instance.

Exceptions:

TToiInvalidArgumentException	Raised if the specified application identifier is invalid, or raised if the frontend id is invalid.
TToiNotEnoughResourcesException	Raised if the specified frontend resource is in use.
TToiOperationNotSupportedException	Raised if DVB-T is not supported.

See also:: ToiScanner; ToiDvbTScanner; ToiScanner::releaseInstance()

ToiFrontendDownloader ToiFrontendService::createFrontendDownloader ( in TToiFrontendId frontendId ) raises (TToiInvalidArgumentException, TToiNotEnoughResourcesException, TToiOperationNotSupportedException)

Technical Preview:: This method is a TECHNICAL PREVIEW, it may change. This function creates a new frontend downloader instance and associates it with the calling application. System resources are allocated when this function is called and released when ToiFrontendDownloader::releaseInstance() is called.

When the application no longer needs the frontend downloader instance, it must release it by calling ToiFrontendDownloader::releaseInstance().

Parameters:

frontendId The frontend identifier which will be used to bind this specific frontend to the downloader instance.

Return values:

IToiFrontendDownloader
downloaderAddress	The address to the ToiFrontendDownloader instance.

Exceptions:

TToiInvalidArgumentException	Raised if the specified application identifier is invalid, or if frontend id is invalid.
TToiNotEnoughResourcesException	Raised if the specified frontend resource is in use.
TToiOperationNotSupportedException	Raised if the function is not supported.

See also:: ToiFrontendDownloader; ToiFrontendDownloader::releaseInstance()

ToiFrontendServiceFrontendInfo ToiFrontendService::getFrontendInfo ( in TToiFrontendId frontendId ) raises (TToiInvalidArgumentException, TToiNoDataException, TToiOperationNotSupportedException)

Get status information about the frontend, i.e. tuner and demodulator, for the dedicated frontend.

Parameters:

frontendId The frontend identifier.

Return values:

info	The frontend status information.

Exceptions:

TToiInvalidArgumentException	Raised if the frontend id is not valid.
TToiNoDataException	Raised if the frontend information is not available.
TToiOperationNotSupportedException	Raised if there is no frontend available.

ToiFrontendServiceFrontendInfo ToiFrontendService::getFrontendInfoBySession ( in ToiMediaSession::TToiSessionId sessionId ) raises (TToiInvalidArgumentException, TToiNoDataException, TToiOperationNotSupportedException)

Get status information about the frontend, i.e. tuner and demodulator, for the dedicated session.

Parameters:

sessionId The media session identifier.

Return values:

info	The frontend status information.

Exceptions:

TToiInvalidArgumentException	Raised if the session id is not valid or if the session does not exist.
TToiNoDataException	Raised if the frontend information is not available.
TToiOperationNotSupportedException	Raised if there is no frontend available or if the given media session is not using a frontend.

TToiFrontendIdSequence ToiFrontendService::getFrontends ( ) raises (TToiOperationNotSupportedException)

This function is used to get the frontend identifiers for the available frontends.

Return values:

identifiers A list of frontend identifiers.

Exceptions:

TToiOperationNotSupportedException Raised if there is no frontend available.

ToiOperationManager ToiFrontendService::getOperationManager ( )

Returns the operation manager that handles asynchronous operations for all services derived from the Frontend service. The procedure of executing asynchronous operations is generic and looks like this:

Get a handle to the operation manager.
Register an observer to get operation events from the operation manager.
Create an operation in order to get an operation identifier.
Call a asynchronous operation using the operation identifier.
Receive progress events for the asynchronous operation.
When the operation is completed, get result data (if any).
Release the operation or reuse the identifier for another asynchronous call.

Return values:

IToiOperationManager
address	The address to the ToiOperationManager.

Member Data Documentation

const TToiChannelBandwidth ToiFrontendService::CAPABILITY_BANDWIDTH_1_8MHZ = 0x1

Bandwidth of 1.8MHz used for SCTE OOB.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_BANDWIDTH_1_8MHZ.

const TToiChannelBandwidth ToiFrontendService::CAPABILITY_BANDWIDTH_5MHZ = 0x2

Bandwidth of 5MHz.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_BANDWIDTH_5MHZ.

const TToiChannelBandwidth ToiFrontendService::CAPABILITY_BANDWIDTH_6MHZ = 0x4

Bandwidth of 6MHz.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_BANDWIDTH_6MHZ.

const TToiChannelBandwidth ToiFrontendService::CAPABILITY_BANDWIDTH_7MHZ = 0x8

Bandwidth of 7MHz.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_BANDWIDTH_7MHZ.

const TToiChannelBandwidth ToiFrontendService::CAPABILITY_BANDWIDTH_8MHZ = 0x10

Bandwidth of 8MHz.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_BANDWIDTH_8MHZ.

const TToiModulationMode ToiFrontendService::CAPABILITY_MODULATION_DVS178_QPSK = 0x40

Modulation mode of QVS178_QPSK.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_MODULATION_DVS178_QPSK.

const TToiModulationMode ToiFrontendService::CAPABILITY_MODULATION_QAM_128 = 0x8

Modulation mode of QAM128.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_MODULATION_QAM_128.

const TToiModulationMode ToiFrontendService::CAPABILITY_MODULATION_QAM_16 = 0x1

Modulation mode of QAM16.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_MODULATION_QAM_16.

const TToiModulationMode ToiFrontendService::CAPABILITY_MODULATION_QAM_256 = 0x10

Modulation mode of QAM256.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_MODULATION_QAM_256.

const TToiModulationMode ToiFrontendService::CAPABILITY_MODULATION_QAM_32 = 0x2

Modulation mode of QAM32.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_MODULATION_QAM_32.

const TToiModulationMode ToiFrontendService::CAPABILITY_MODULATION_QAM_64 = 0x4

Modulation mode of QAM64.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_MODULATION_QAM_64.

const TToiModulationMode ToiFrontendService::CAPABILITY_MODULATION_QPSK = 0x20

Modulation mode of QPSK.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_MODULATION_QPSK.

const TToiModulationSystem ToiFrontendService::CAPABILITY_SYSTEM_ATSC = 0x200

Modulation system ATSC, i.e. US Terrestrial.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_SYSTEM_ATSC.

const TToiModulationSystem ToiFrontendService::CAPABILITY_SYSTEM_DVB_C = 0x1

Modulation system DVB_C.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_SYSTEM_DVB_C.

const TToiModulationSystem ToiFrontendService::CAPABILITY_SYSTEM_DVB_S = 0x2

Modulation system DVB_S.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_SYSTEM_DVB_S.

const TToiModulationSystem ToiFrontendService::CAPABILITY_SYSTEM_DVB_S2 = 0x4

Modulation system DVB_S2.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_SYSTEM_DVB_S2.

const TToiModulationSystem ToiFrontendService::CAPABILITY_SYSTEM_DVB_T = 0x8

Modulation system DVB_T.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_SYSTEM_DVB_T.

const TToiModulationSystem ToiFrontendService::CAPABILITY_SYSTEM_ISDB_C = 0x10

Modulation system ISDB_C.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_SYSTEM_ISDB_C.

const TToiModulationSystem ToiFrontendService::CAPABILITY_SYSTEM_ISDB_S = 0x20

Modulation system ISDB_S.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_SYSTEM_ISDB_S.

const TToiModulationSystem ToiFrontendService::CAPABILITY_SYSTEM_ISDB_T = 0x40

Modulation system ISDB_T.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_SYSTEM_ISDB_T.

const TToiModulationSystem ToiFrontendService::CAPABILITY_SYSTEM_SBTVD = 0x80

Modulation system SBTVD, i.e. ISDB_T International.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_SYSTEM_SBTVD.

const TToiModulationSystem ToiFrontendService::CAPABILITY_SYSTEM_SCTE = 0x100

Modulation system SCTE, i.e. US Cable.

This constant can also be accessed from toi.consts.ToiFrontendService.CAPABILITY_SYSTEM_SCTE.

const TToiFrontendId ToiFrontendService::FRONTEND_ID_ANY_FREE = -1

Predefined value to identify any appropriate free frontend

This constant can also be accessed from toi.consts.ToiFrontendService.FRONTEND_ID_ANY_FREE.

const long ToiFrontendService::ON_LOCK_STATE_CHANGED = 3000

This is an Event identifier for ToiFrontendLockStateChangedEvent.

This constant can also be accessed from toi.consts.ToiFrontendService.ON_LOCK_STATE_CHANGED.

const TToiPropertyId ToiFrontendService::PROPERTY_DERIVED_CHANNEL_ID = 3

Property used to indicate to which channel id a frontend is currently tuned to. This is derived from the centre frequency, see NORDIG requirement for DVB.

This constant can also be accessed from toi.consts.ToiFrontendService.PROPERTY_DERIVED_CHANNEL_ID.

const TToiPropertyId ToiFrontendService::PROPERTY_SIGNAL_QUALITY_INDICATOR = 2

Property for the signal quality indicator. The value is between -1 and 100, where 100 means that the quality is the best possible and -1 means that the quality is not available. See NORDIG requirement for DVB.

This constant can also be accessed from toi.consts.ToiFrontendService.PROPERTY_SIGNAL_QUALITY_INDICATOR.

const TToiPropertyId ToiFrontendService::PROPERTY_SIGNAL_STRENGTH_INDICATOR = 1

Property for Signal Strength Indicator (SSI) of a frontend. See NORDIG requirement for DVB.

This constant can also be accessed from toi.consts.ToiFrontendService.PROPERTY_SIGNAL_STRENGTH_INDICATOR.

Description

Public Member Functions

Public Attributes

Public Types

Member Typedef Documentation

Member Function Documentation

Member Data Documentation