sl@0: // Copyright (c) 2003-2009 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:
sl@0: // This is a test codec which takes MP3 data & gives it back to the datapath
sl@0: // pretending it has converted it to PCM16 data thus producing lots of noise
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32std.h>
sl@0: 
sl@0: #include <mmf/plugin/mmfcodecimplementationuids.hrh>
sl@0: #include <ecom/implementationproxy.h>
sl@0: 
sl@0: #include "MP3Uids.hrh"
sl@0: 
sl@0: #include "mmfmp3Codec.h"
sl@0: 
sl@0: //*******************************************************************
sl@0: //*  MP3 Codec to 16 bit PCM Class:
sl@0: //*******************************************************************
sl@0: 
sl@0: // __________________________________________________________________________
sl@0: // Implementation
sl@0: 
sl@0: CMMFCodec* CMMFMP3To16PcmCodec::NewL(TAny* aInitParams)
sl@0: 	{
sl@0: 	CMMFMP3To16PcmCodec* self=new(ELeave) CMMFMP3To16PcmCodec();
sl@0: 	CleanupStack::PushL(self);
sl@0: 	self->ConstructL(aInitParams);
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return STATIC_CAST( CMMFCodec*, self );
sl@0: 	}
sl@0: 
sl@0: CMMFMP3To16PcmCodec::~CMMFMP3To16PcmCodec()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: CMMFMP3To16PcmCodec::CMMFMP3To16PcmCodec()
sl@0: 	{
sl@0: 
sl@0: 	}
sl@0: 
sl@0: void CMMFMP3To16PcmCodec::ConstructL(TAny* /*aInitParams*/)
sl@0: 	{
sl@0: 	
sl@0: 	}
sl@0: 
sl@0: void CMMFMP3To16PcmCodec::ResetL()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: 
sl@0: TCodecProcessResult CMMFMP3To16PcmCodec::ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDst)
sl@0: 	{
sl@0: 
sl@0: 	TCodecProcessResult result;
sl@0: 	result.iStatus = TCodecProcessResult::EProcessIncomplete; // dest full
sl@0: 	result.iSrcBytesProcessed = 0;
sl@0: 	result.iDstBytesAdded = 0;
sl@0: 
sl@0: 	// convert from generic CMMFBuffer to CMMFDataBuffer
sl@0: 	const CMMFDataBuffer* src = STATIC_CAST(const CMMFDataBuffer*, &aSrc);
sl@0: 	CMMFDataBuffer* dst = STATIC_CAST(CMMFDataBuffer*, &aDst);
sl@0: 
sl@0: 	TUint srcLen = src->Data().Length() - src->Position();
sl@0: 	TUint dstMaxLen = dst->Data().MaxLength() - dst->Position();
sl@0: 	TUint dstLen = dstMaxLen;
sl@0: 	
sl@0: 	dst->Data().SetLength(0);
sl@0: 
sl@0: 	if (srcLen == 0)
sl@0: 		{
sl@0: 		result.iStatus = TCodecProcessResult::EDstNotFilled;	// get some more source data
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		TPtrC8 srcPtrC(src->Data().Ptr(), dstLen);
sl@0: 
sl@0: 		dst->Data() = srcPtrC;
sl@0: 		
sl@0: 		result.iSrcBytesProcessed = srcLen;
sl@0: 		result.iDstBytesAdded = dst->Data().Length();
sl@0: 		result.iStatus = TCodecProcessResult::EProcessIncomplete; // dest full
sl@0: 		}
sl@0: 
sl@0: 	return result;
sl@0: 	}
sl@0: 
sl@0: 
sl@0: // __________________________________________________________________________
sl@0: // Exported proxy for instantiation method resolution
sl@0: // Define the interface UIDs
sl@0: 
sl@0: 
sl@0: const TImplementationProxy ImplementationTable[] = 
sl@0: 	{
sl@0: 		IMPLEMENTATION_PROXY_ENTRY(KUidMP3ImplementationCodec,	CMMFMP3To16PcmCodec::NewL)
sl@0: 	};
sl@0: 
sl@0: 
sl@0: 
sl@0: EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
sl@0: 	{
sl@0: 	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
sl@0: 
sl@0: 	return ImplementationTable;
sl@0: 	}
sl@0: