Collapse all Symbian^3 Application Developer Library

CErrorConcealmentIntfc Class Reference

class CErrorConcealmentIntfc : public CBase

Interface for error concealment. Used for providing error concealment for lost data. This abstract class just provides the static NewL function for the creation of the proxy, and also defines the custom interface to be implemented by the proxy and the real custom interface implementation.

ErrorConcealmentIntfc.lib

Since: S60 3.0

Inherits from

CErrorConcealmentIntfc
- CBase

Public Member Functions
IMPORT_C TInt	ConcealErrorForNextBuffer ()
IMPORT_C TInt	FrameModeRqrdForEC ( TBool &)
IMPORT_C CErrorConcealmentIntfc *	NewL ( CMMFDevSound &)
IMPORT_C CErrorConcealmentIntfc *	NewL ( CMdaAudioOutputStream &)
IMPORT_C TInt	SetFrameMode ( TBool )

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()

Member Functions Documentation

ConcealErrorForNextBuffer()

IMPORT_C TInt

ConcealErrorForNextBuffer

(

)

[pure virtual]

Indicates that an frame of encoded audio is lost and that error concealment should be performed for a lost frame. By definition, the next buffer sent to the decoder will contain no valid audio data.

Since: S60 3.0

FrameModeRqrdForEC(TBool &)

IMPORT_C TInt

FrameModeRqrdForEC

(

TBool &

aFrameModeRqrd

)

[pure virtual]

Query to find out if frame-based interface is required by hwdevice for supporting error concealment.

Since: S60 3.0

Parameters

TBool & aFrameModeRqrd

indicates if frame mode is required.

NewL(CMMFDevSound &)

IMPORT_C CErrorConcealmentIntfc *

NewL

(

CMMFDevSound &

aDevSound

)

[static]

Creates the interface.

Parameters

CMMFDevSound & aDevSound

NewL(CMdaAudioOutputStream &)

IMPORT_C CErrorConcealmentIntfc *

NewL

(

CMdaAudioOutputStream &

aUtility

)

[static]

Creates the interface.

Parameters

CMdaAudioOutputStream & aUtility

SetFrameMode(TBool)

IMPORT_C TInt

SetFrameMode

(

TBool

aFrameMode

)

[pure virtual]

Puts the hwdevice into a frame-based interface. The alternate mode of interface would be buffer-based.

Since: S60 3.0

Parameters

TBool aFrameMode