/*

* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#include "sound_util.h"

// Translation table for RMdaDevSound::TMdaSoundEncoding set

_LIT(KStrEMdaSoundEncoding8BitPCM,			"EMdaSoundEncoding8BitPCM");

_LIT(KStrEMdaSoundEncoding16BitPCM,			"EMdaSoundEncoding16BitPCM");

_LIT(KStrEMdaSoundEncoding8BitALaw,			"EMdaSoundEncoding8BitALaw");

_LIT(KStrEMdaSoundEncoding8BitMuLaw,		"EMdaSoundEncoding8BitMuLaw");

// NB! Wrong member for negative testing

_LIT(KStrEMdaSoundEncoding40BitPCM,			"EMdaSoundEncoding40BitPCM");

_LIT(KStrNull,								"");

const CDataWrapperBase::TEnumEntryTable		TSoundUtil::iEnumTableSoundEncoding[] =

	{

//	Enum as a descriptor					Enum

	KStrEMdaSoundEncoding8BitPCM,			RMdaDevSound::EMdaSoundEncoding8BitPCM,

	KStrEMdaSoundEncoding16BitPCM,			RMdaDevSound::EMdaSoundEncoding16BitPCM,

	KStrEMdaSoundEncoding8BitALaw,			RMdaDevSound::EMdaSoundEncoding8BitALaw,

	KStrEMdaSoundEncoding8BitMuLaw,			RMdaDevSound::EMdaSoundEncoding8BitMuLaw,

	KStrEMdaSoundEncoding40BitPCM,			0x00000040,

	KStrNull,								-1

	};

/**

 * Loading of generinc sound driver required for RMDaDevSound interface

 * 

 * @param aLll 				LDD driver name

 * @param aPdd				PDD driver name

 *

 * @return					System wide error

 *

 * @leave					no

 */

TInt	TSoundUtil::LoadSoundDrivers(const TDesC& aLdd, const TDesC& aPdd)

	{

	TInt rerr = KErrNone;

	rerr = User::LoadPhysicalDevice(aPdd);

	if(rerr != KErrNone && rerr != KErrAlreadyExists)

		{

		return rerr;

		}

	rerr = User::LoadLogicalDevice(aLdd);	

	if(rerr != KErrNone && rerr != KErrAlreadyExists)

		{

		return rerr;

		}

	return KErrNone;	

	}

/**

 * Un-loading of generinc sound driver required for RMDaDevSound interface

 * 

 * @param aLll 				LDD driver name

 * @param aPdd				PDD driver name

 *

 * @return					System wide error

 *

 * @leave					no

 */

TInt	TSoundUtil::FreeSoundDrivers(const TDesC& aLdd, const TDesC& aPdd)

	{

	TInt rerr = KErrNone;

	rerr = User::FreePhysicalDevice(aPdd);

	if(rerr != KErrNone && rerr != KErrAlreadyExists)

		{

		return rerr;

		}

	rerr = User::FreeLogicalDevice(aLdd);	

	if(rerr != KErrNone && rerr != KErrAlreadyExists)

		{

		return rerr;

		}

	return KErrNone;	

	}

/**

 * Store current RBuf8 content into the binary file

 * 

 * @param aFile 			file name to save audio data

 *

 * @return					System wide error

 *

 * @leave					System wide error

 */

TInt	TSoundUtil::RAudioBuffer::SaveAudioDataL(const TDesC& aFile)

	{	

	RFs fsSession;

	::CleanupClosePushL(fsSession);

	User::LeaveIfError(fsSession.Connect()); 	

	TInt err = KErrNone;

	RFile file;

	err = file.Create(fsSession, aFile, EFileStream | EFileWrite);

	if (!err)

		{

		err = file.Write(*this);

		file.Close();

		}	

	fsSession.Close();

	CleanupStack::PopAndDestroy();		

	return err;

	}

/**

 * Load binary file content into RBuf8

 * 

 * @param aFile 			file name where to load audio data

 *

 * @return					System wide error

 *

 * @leave					System wide error

 */

TInt	TSoundUtil::RAudioBuffer::LoadAudioDataL(const TDesC& aFile)

	{

	RFs fsSession;

	::CleanupClosePushL(fsSession);

	User::LeaveIfError(fsSession.Connect());	

	TFindFile	findFile(fsSession);

	TInt err = findFile.FindByDir(aFile, KStrNull);

	if ( err == KErrNone )

		{

		const TDesC&	fileName=findFile.File();

		RFile file;

		err = file.Open(fsSession, fileName, EFileStream | EFileRead);

		if (!err)

			{

			err = file.Read(*this);

			file.Close();

			}

		}

	fsSession.Close();

	CleanupStack::PopAndDestroy();		

	return err;	

	}

/**

 * Delete file

 * 

 * @param aFile 			file name to delete

 *

 * @return					System wide error

 *

 * @leave					System wide error

 */

TInt	TSoundUtil::DeleteFileL(const TDesC& aFile)

	{

	RFs fsSession;

	CleanupClosePushL(fsSession);

	User::LeaveIfError(fsSession.Connect());

	TInt err;

	err = fsSession.Delete(aFile);	

	fsSession.Close();

	CleanupStack::PopAndDestroy();

	return err;

	}