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CRadioPlayerUtility Class Reference

class CRadioPlayerUtility : public CBase

This class provides an interface to initiate and control playback of audio from the tuner.

RadioUtility.lib

Since: S60 3.2

Inherits from

CRadioPlayerUtility
- CBase

Nested Classes and Structures

CRadioPlayerUtility::CBody

Public Member Functions
IMPORT_C void	Close()
IMPORT_C TAny *	CustomInterface(TUid)
IMPORT_C TInt	GetBalance(TInt &, TInt &)
IMPORT_C TInt	GetMaxVolume(TInt &)
IMPORT_C TInt	GetVolume(TInt &)
IMPORT_C TBool	IsMute()
IMPORT_C TInt	Mute(TBool)
IMPORT_C void	Play()
IMPORT_C TPlayerState	PlayerState()
IMPORT_C TInt	SetBalance(TInt, TInt)
IMPORT_C TInt	SetVolume(TInt)
IMPORT_C TInt	SetVolumeRamp(const TTimeIntervalMicroSeconds &)
IMPORT_C void	Stop()

Private Member Functions
	CRadioPlayerUtility()
	~CRadioPlayerUtility()
void	ConstructL()
CRadioPlayerUtility *	NewL(RRadioSession &, MRadioPlayerObserver &)

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()

Private Attributes
CBody *	iBody

Constructor & Destructor Documentation

CRadioPlayerUtility()

CRadioPlayerUtility

(

)

[private]

~CRadioPlayerUtility()

~CRadioPlayerUtility

(

)

[private]

Member Functions Documentation

Close()

IMPORT_C void

(

)

Close the radio player and free all memory allocated. Any ongoing playing activity will be stopped if no other clients need it.

Since: S60 3.2

ConstructL()

void

ConstructL

(

)

[private]

CustomInterface(TUid)

IMPORT_C TAny *

CustomInterface

(

TUid

aInterfaceId

)

Retrieves a custom interface to the device. (Used by Audio Enhancement)

Since: S60 3.2

Parameters

TUid aInterfaceId

The interface UID, defined with the custom interface.

GetBalance(TInt &, TInt &)

IMPORT_C TInt	GetBalance	(	TInt &	aLeftPercentage,
			TInt &	aRightPercentage
		)	const

Get the speaker balance set for playing.

Since: S60 3.2

Parameters

TInt & aLeftPercentage	On return contains left speaker volume perecentage. This can be any value from zero to 100. Zero value means left speaker is muted.
TInt & aRightPercentage	On return contains right speaker volume perecentage. This can be any value from zero to 100. Zero value means right speaker is muted.

GetMaxVolume(TInt &)

IMPORT_C TInt

GetMaxVolume

(

TInt &

aMaxVolume

)

const

Get the maximum volume supported by the device. Volume range from 0 to max. Setting volume to zero will mute the speakers.

Since: S60 3.2

Parameters

TInt & aMaxVolume

On return contains the maximum volume supported.

GetVolume(TInt &)

IMPORT_C TInt

GetVolume

(

TInt &

aVolume

)

const

Get the current volume.

Since: S60 3.2

Parameters

TInt & aVolume

On return contains the current volume.

IsMute()

IMPORT_C TBool

IsMute

(

)

Find out if the audio is muted or not.

Since: S60 3.2

Mute(TBool)

IMPORT_C TInt

Mute

(

TBool

aMute

)

Mutes or unmutes radio playback.

Since: S60 3.2

Parameters

TBool aMute

ETrue to mute the audio, EFalse to unmute it.

NewL(RRadioSession &, MRadioPlayerObserver &)

CRadioPlayerUtility *	NewL	(	RRadioSession &	aRadioSession,
			MRadioPlayerObserver &	aObserver
		)	[private, static]

Factory function to create a new instance of the radio player utility.

Since: S60 3.2

Parameters

RRadioSession & aRadioSession	Reference to radio session
MRadioPlayerObserver & aObserver	The observer object for receiving async completion callbacks

Play()

IMPORT_C void

Play

(

)

Asynchronous request to start playing the radio.

User must be ready to receive callback method MrpoStateChange. If radio plays successfully, the user will receive callback method MrpoStateChange with ERadioPlayerPlaying and KErrNone. If a problem is encountered, user will receive callback MrpoStateChange with ERadioPlayerIdle with an error code.

Since: S60 3.2

MRadioPlayerObserver::MrpoStateChange

PlayerState()

IMPORT_C TPlayerState

PlayerState

(

)

const

Retrieve the current state of the player. If the radio is already playing, client should simply retrieve current settings such as volume, etc.

Since: S60 3.2

SetBalance(TInt, TInt)

IMPORT_C TInt	SetBalance	(	TInt	aLeftPercentage,
			TInt	aRightPercentage
		)

Set the speaker balance for playing.

Since: S60 3.2

Parameters

TInt aLeftPercentage	Left speaker volume percentage. This can be any value from zero to 100. Setting a zero value mutes the sound on left speaker.
TInt aRightPercentage	Right speaker volume percentage. This can be any value from zero to 100. Setting a zero value mutes the sound on right speaker.

SetVolume(TInt)

IMPORT_C TInt

SetVolume

(

TInt

aVolume

)

Set the volume to the specified level. This can be any value from zero to max returned by GetMaxVolume.

Since: S60 3.2

Parameters

TInt aVolume

The volume level to set.

SetVolumeRamp(const TTimeIntervalMicroSeconds &)

IMPORT_C TInt

SetVolumeRamp

(

const TTimeIntervalMicroSeconds &

aRampInterval

)

Set a volume ramp. Must be called before Play.

Since: S60 3.2

Parameters

const TTimeIntervalMicroSeconds & aRampInterval

The time interval over which the volume should be increased from zero to the current volume setting.

Stop()

IMPORT_C void

Stop

(

)

Asynchronous request to stop the radio.

This will stop radio for all client applications playing the radio. If the application wishes to terminate without disrupting the radio playback (in case of multiple active applications running), the application should terminate without issuing Stop. User must be ready to receive callback method MrpoStateChange.

Since: S60 3.2

MRadioPlayerObserver::MrpoStateChange

Member Data Documentation

CBody * iBody

CBody *

iBody

[private]

Radio player utility implementation body Own.