sl@0: /*
sl@0: * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). 
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description:   Implementation of the Audio Equalizer effect class
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: 
sl@0: 
sl@0: // INCLUDE FILES
sl@0: 
sl@0: #ifdef _DEBUG
sl@0: #include <e32svr.h>
sl@0: #endif
sl@0: 
sl@0: #include <AudioEqualizerBase.h>
sl@0: #include <CustomInterfaceUtility.h>
sl@0: #include "AudioEqualizerProxy.h"
sl@0: #include <s32mem.h>
sl@0: #include <DrmAudioSamplePlayer.h>
sl@0: #include <mdaaudioinputstream.h>
sl@0: #include <mdaaudiooutputstream.h>
sl@0: #include <mdaaudiotoneplayer.h>
sl@0: #include <mmf/server/sounddevice.h>
sl@0: 
sl@0: #ifdef _DEBUG
sl@0: #define DEBPRN0         RDebug::Printf( "%s", __PRETTY_FUNCTION__);
sl@0: #define DEBPRN1(str)    RDebug::Printf( "%s %s", __PRETTY_FUNCTION__, str );
sl@0: #else
sl@0: #define DEBPRN0
sl@0: #define DEBPRN1(str)
sl@0: #endif
sl@0: 
sl@0: // ============================ MEMBER FUNCTIONS ===============================
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::CAudioEqualizer
sl@0: // C++ default constructor can NOT contain any code, that
sl@0: // might leave.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer::CAudioEqualizer()
sl@0:     : 	iAudioEqualizerData(0, 0),
sl@0:     	iDataPckgTo(iAudioEqualizerData),
sl@0:     	iBandChange(0)
sl@0:     {
sl@0:     }
sl@0: 
sl@0: // Destructor
sl@0: EXPORT_C CAudioEqualizer::~CAudioEqualizer()
sl@0:     {
sl@0:         delete iBandDataBuf;
sl@0: 	iBandsData.Close();
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL()
sl@0: 	{
sl@0: 	User::Leave(KErrNotSupported);
sl@0: 	return NULL;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL(
sl@0: 	CMdaAudioConvertUtility& aUtility )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0:    	CCustomInterfaceUtility* customInterface = CCustomInterfaceUtility::NewL(aUtility);
sl@0:     CleanupStack::PushL(customInterface);
sl@0: 
sl@0: 	CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)customInterface->CustomInterface(KUidAudioEqualizerEffect);
sl@0: 
sl@0: 	if ( !audioEqualizerProxy )
sl@0: 		{
sl@0:         DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0: 
sl@0: 	CleanupStack::Pop(customInterface);
sl@0: 
sl@0:     return audioEqualizerProxy;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL(
sl@0: 	CMdaAudioInputStream& aUtility )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0:     CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)aUtility.CustomInterface(KUidAudioEqualizerEffect);
sl@0: 	if (audioEqualizerProxy == NULL)
sl@0: 		{
sl@0:         DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0:     return audioEqualizerProxy;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL(
sl@0: 	CMdaAudioOutputStream& aUtility )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0:     CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)aUtility.CustomInterface(KUidAudioEqualizerEffect);
sl@0: 	if (audioEqualizerProxy == NULL)
sl@0: 		{
sl@0:         DEBPRN1("No Adaptation Support - leaving");    
sl@0:     	User::Leave(KErrNotSupported);
sl@0: 		}
sl@0:     return audioEqualizerProxy;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL(
sl@0: 	CMdaAudioPlayerUtility& aUtility )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0:    	CCustomInterfaceUtility* customInterface = CCustomInterfaceUtility::NewL(aUtility);
sl@0:     CleanupStack::PushL(customInterface);
sl@0: 
sl@0: 	CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)customInterface->CustomInterface(KUidAudioEqualizerEffect);
sl@0: 
sl@0: 	if ( !audioEqualizerProxy )
sl@0: 		{
sl@0:         DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0: 
sl@0: 	CleanupStack::Pop(customInterface);
sl@0: 
sl@0:     return audioEqualizerProxy;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL(
sl@0: 	CMdaAudioRecorderUtility& aUtility,
sl@0: 	TBool aRecordStream )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0:    	CCustomInterfaceUtility* customInterface = CCustomInterfaceUtility::NewL(aUtility, aRecordStream);
sl@0:     CleanupStack::PushL(customInterface);
sl@0: 
sl@0: 	CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)customInterface->CustomInterface(KUidAudioEqualizerEffect);
sl@0: 
sl@0: 	if ( !audioEqualizerProxy )
sl@0: 		{
sl@0:         DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0: 
sl@0:     CleanupStack::Pop(customInterface);
sl@0: 
sl@0:     return audioEqualizerProxy;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL(
sl@0: 	CMdaAudioToneUtility& aUtility )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0:     CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)aUtility.CustomInterface(KUidAudioEqualizerEffect);
sl@0: 	if (audioEqualizerProxy == NULL)
sl@0: 		{
sl@0:         DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0:     return audioEqualizerProxy;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL(
sl@0: 	CMMFDevSound& aDevSound )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0:     CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)aDevSound.CustomInterface(KUidAudioEqualizerEffect);
sl@0: 	if (audioEqualizerProxy == NULL)
sl@0: 		{
sl@0:         DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0:     return audioEqualizerProxy;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL(
sl@0: 	CCustomCommandUtility* aUtility )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0:    	CCustomInterfaceUtility* customInterface = CCustomInterfaceUtility::NewL(aUtility);
sl@0:     CleanupStack::PushL(customInterface);
sl@0: 
sl@0: 	CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)customInterface->CustomInterface(KUidAudioEqualizerEffect);
sl@0: 	if ( !audioEqualizerProxy )
sl@0: 		{
sl@0: 		DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0: 
sl@0:     CleanupStack::Pop(customInterface);
sl@0: 
sl@0:     return audioEqualizerProxy;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL(
sl@0: 	MCustomInterface& aCustomInterface )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0: 	CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)aCustomInterface.CustomInterface(KUidAudioEqualizerEffect);
sl@0: 
sl@0: 	if ( !audioEqualizerProxy )
sl@0: 		{
sl@0: 		DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0: 
sl@0:     return audioEqualizerProxy;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL( 
sl@0: 	CMidiClientUtility& aUtility )
sl@0:     {
sl@0:     DEBPRN0;
sl@0:    	CCustomInterfaceUtility* customInterface = CCustomInterfaceUtility::NewL(aUtility);
sl@0:     CleanupStack::PushL(customInterface);
sl@0: 
sl@0: 	CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)customInterface->CustomInterface(KUidAudioEqualizerEffect);
sl@0: 
sl@0: 	if ( !audioEqualizerProxy )
sl@0: 		{
sl@0: 		DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0: 
sl@0:     CleanupStack::Pop(customInterface);
sl@0: 
sl@0:     return audioEqualizerProxy;
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL( 
sl@0: 	CDrmPlayerUtility& aUtility )
sl@0:     {
sl@0:     DEBPRN0;
sl@0:    	CCustomInterfaceUtility* customInterface = CCustomInterfaceUtility::NewL(aUtility);
sl@0:     CleanupStack::PushL(customInterface);
sl@0: 
sl@0: 	CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)customInterface->CustomInterface(KUidAudioEqualizerEffect);
sl@0: 
sl@0: 	if ( !audioEqualizerProxy )
sl@0: 		{
sl@0:         DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0: 
sl@0:     CleanupStack::Pop(customInterface);
sl@0: 
sl@0:     return audioEqualizerProxy;
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::NewL
sl@0: // Static function for creating an instance of the AudioEqualizer object.
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C CAudioEqualizer* CAudioEqualizer::NewL( 
sl@0: 	CVideoPlayerUtility& aUtility )
sl@0:     {
sl@0:     DEBPRN0;
sl@0:    	CCustomInterfaceUtility* customInterface = CCustomInterfaceUtility::NewL(aUtility);
sl@0:     CleanupStack::PushL(customInterface);
sl@0: 
sl@0: 	CAudioEqualizerProxy* audioEqualizerProxy = (CAudioEqualizerProxy*)customInterface->CustomInterface(KUidAudioEqualizerEffect);
sl@0: 
sl@0: 	if ( !audioEqualizerProxy )
sl@0: 		{
sl@0:         DEBPRN1("No Adaptation Support - leaving"); 
sl@0: 		User::Leave(KErrNotSupported);
sl@0: 		}
sl@0: 
sl@0:     CleanupStack::Pop(customInterface);
sl@0: 
sl@0:     return audioEqualizerProxy;
sl@0:     }
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::BandLevel
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C TInt32 CAudioEqualizer::BandLevel(
sl@0: 	TUint8 aBand ) const
sl@0: 	{
sl@0: 	if( aBand > NumberOfBands() )
sl@0: 		{
sl@0: 		return KErrArgument;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return iBandsData[aBand-1].iBandLevel;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::BandWidth
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C TInt32 CAudioEqualizer::BandWidth(
sl@0: 	TUint8 aBand ) const
sl@0: 	{
sl@0: 	if( aBand > NumberOfBands() )
sl@0: 		{
sl@0: 		return KErrArgument;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return iBandsData[aBand-1].iBandWidth;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::CenterFrequency
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C TInt32 CAudioEqualizer::CenterFrequency(
sl@0: 	TUint8 aBand ) const
sl@0: 	{
sl@0: 	if( aBand > NumberOfBands() )
sl@0: 		{
sl@0: 		return KErrArgument;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return iBandsData[aBand-1].iCenterFrequency;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::CrossoverFrequency
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C TInt32 CAudioEqualizer::CrossoverFrequency(
sl@0: 	TUint8 aBand ) const
sl@0: 	{
sl@0: 	if( aBand > NumberOfBands() )
sl@0: 		{
sl@0: 		return KErrArgument;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		return iBandsData[aBand-1].iCrossoverFrequency;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::DbLevelLimits
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C void CAudioEqualizer::DbLevelLimits(
sl@0: 	TInt32& aMin,
sl@0: 	TInt32& aMax )
sl@0: 	{
sl@0: 	aMin = iAudioEqualizerData.iMindB;
sl@0: 	aMax = iAudioEqualizerData.iMaxdB;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::CrossoverFrequency
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C TUint8 CAudioEqualizer::NumberOfBands() const
sl@0: 
sl@0: 	{
sl@0: 	return iBandsData.Count();
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::SetBandLevelL
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C void CAudioEqualizer::SetBandLevelL(
sl@0: 	TInt8 aBand,
sl@0: 	TInt32 aLevel )
sl@0: 	{
sl@0: 	if( aBand > NumberOfBands() )
sl@0: 		{
sl@0: 		User::Leave(KErrArgument);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		TUint32 mask = 1;
sl@0: 		iBandChange = iBandChange | (mask << aBand-1);
sl@0: 		iBandsData[aBand-1].iBandLevel = aLevel;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::Uid
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C TUid CAudioEqualizer::Uid() const
sl@0: 	{
sl@0: 	return KUidAudioEqualizerEffect;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::DoEffectData
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C const TDesC8& CAudioEqualizer::DoEffectData()
sl@0: 	{
sl@0:     DEBPRN0;
sl@0: 	iDataPckgTo = iAudioEqualizerData;
sl@0: 	return iDataPckgTo;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::SetEffectData
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C void CAudioEqualizer::SetEffectData(
sl@0: 	const TDesC8& aEffectDataBuffer )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0: 	TEfAudioEqualizerDataPckg dataPckg;
sl@0: 	dataPckg.Copy(aEffectDataBuffer);
sl@0: 	iAudioEqualizerData = dataPckg();
sl@0: 	iEnabled = iAudioEqualizerData.iEnabled;
sl@0: 	iEnforced = iAudioEqualizerData.iEnforced;
sl@0: 	iHaveUpdateRights = iAudioEqualizerData.iHaveUpdateRights;
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::DoBandData
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C const TDesC8& CAudioEqualizer::DoBandDataL(
sl@0: 	TUint8 aBand,
sl@0: 	TBool aAllBands )
sl@0: 	{
sl@0: 	    
sl@0:     DEBPRN0;
sl@0: 	if ( aAllBands )
sl@0: 		{
sl@0: 		if ( iBandDataBuf )
sl@0: 			{
sl@0: 			delete iBandDataBuf;
sl@0: 			iBandDataBuf = NULL;
sl@0: 			}
sl@0: 
sl@0: 		iBandDataBuf = HBufC8::NewL(NumberOfBands() * sizeof(TEfAudioEqualizerBand));
sl@0: 		TPtr8 des = iBandDataBuf->Des();
sl@0: 		des.SetLength(iBandDataBuf->Size());
sl@0: 		RDesWriteStream writeStream(des);
sl@0: 
sl@0: 		for (TInt i=0; i<NumberOfBands(); i++)
sl@0: 			{
sl@0: 			writeStream << iBandsData[i];
sl@0: 			}
sl@0: 		writeStream.CommitL();
sl@0: 		return *iBandDataBuf;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		if ( aBand > NumberOfBands() )
sl@0: 			{
sl@0: 			User::Leave(KErrArgument);
sl@0: 			}
sl@0: 		iBandDataPckgTo = iBandsData[aBand-1];
sl@0: 		return iBandDataPckgTo;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CAudioEqualizer::SetBandData
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: EXPORT_C void CAudioEqualizer::SetBandDataL(
sl@0: 	TInt aNumberOfBands,
sl@0: 	const TDesC8& aBandDataBuffer )
sl@0: 	{
sl@0:     DEBPRN0;
sl@0: 	if ( aNumberOfBands > 1 )
sl@0: 		{
sl@0: 		RDesReadStream readStream(aBandDataBuffer);
sl@0: 		for (TInt i=0; i<NumberOfBands(); i++)
sl@0: 			{
sl@0: 			readStream >> iBandsData[i];
sl@0: 			}
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		TEfAudioEqualizerBandDataPckg dataPckg;
sl@0: 		TEfAudioEqualizerBand band;
sl@0: 		dataPckg.Copy(aBandDataBuffer);
sl@0: 		band = dataPckg();
sl@0: 		if ( band.iBandId > NumberOfBands() )
sl@0: 			{
sl@0: 			User::Leave(KErrArgument);
sl@0: 			}
sl@0: 		iBandsData[band.iBandId-1] = band;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: // ========================== OTHER EXPORTED FUNCTIONS =========================
sl@0: 
sl@0: