// Copyright (c) 2003-2009 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:

// This is a test codec which takes MP3 data & gives it back to the datapath

// pretending it has converted it to PCM16 data thus producing lots of noise

// 

//

#include <e32std.h>

#include <mmf/plugin/mmfcodecimplementationuids.hrh>

#include <ecom/implementationproxy.h>

#include "MP3Uids.hrh"

#include "mmfmp3Codec.h"

//*******************************************************************

//*  MP3 Codec to 16 bit PCM Class:

//*******************************************************************

// __________________________________________________________________________

// Implementation

CMMFCodec* CMMFMP3To16PcmCodec::NewL(TAny* aInitParams)

	{

	CMMFMP3To16PcmCodec* self=new(ELeave) CMMFMP3To16PcmCodec();

	CleanupStack::PushL(self);

	self->ConstructL(aInitParams);

	CleanupStack::Pop(self);

	return STATIC_CAST( CMMFCodec*, self );

	}

CMMFMP3To16PcmCodec::~CMMFMP3To16PcmCodec()

	{

	}

CMMFMP3To16PcmCodec::CMMFMP3To16PcmCodec()

	{

	}

void CMMFMP3To16PcmCodec::ConstructL(TAny* /*aInitParams*/)

	{

	}

void CMMFMP3To16PcmCodec::ResetL()

	{

	}

TCodecProcessResult CMMFMP3To16PcmCodec::ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDst)

	{

	TCodecProcessResult result;

	result.iStatus = TCodecProcessResult::EProcessIncomplete; // dest full

	result.iSrcBytesProcessed = 0;

	result.iDstBytesAdded = 0;

	// convert from generic CMMFBuffer to CMMFDataBuffer

	const CMMFDataBuffer* src = STATIC_CAST(const CMMFDataBuffer*, &aSrc);

	CMMFDataBuffer* dst = STATIC_CAST(CMMFDataBuffer*, &aDst);

	TUint srcLen = src->Data().Length() - src->Position();

	TUint dstMaxLen = dst->Data().MaxLength() - dst->Position();

	TUint dstLen = dstMaxLen;

	dst->Data().SetLength(0);

	if (srcLen == 0)

		{

		result.iStatus = TCodecProcessResult::EDstNotFilled;	// get some more source data

		}

	else

		{

		TPtrC8 srcPtrC(src->Data().Ptr(), dstLen);

		dst->Data() = srcPtrC;

		result.iSrcBytesProcessed = srcLen;

		result.iDstBytesAdded = dst->Data().Length();

		result.iStatus = TCodecProcessResult::EProcessIncomplete; // dest full

		}

	return result;

	}

// __________________________________________________________________________

// Exported proxy for instantiation method resolution

// Define the interface UIDs

const TImplementationProxy ImplementationTable[] = 

	{

		IMPLEMENTATION_PROXY_ENTRY(KUidMP3ImplementationCodec,	CMMFMP3To16PcmCodec::NewL)

	};

EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)

	{

	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);

	return ImplementationTable;

	}