--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/devsoundrefplugin/src/swcodecwrapper/mmfSwCodecPlayDataPath.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,136 @@
+// 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:
+//
+
+#ifndef __MMFSWCODECPLAYDATAPATH_H__
+#define __MMFSWCODECPLAYDATAPATH_H__
+
+
+#include "mmfSwCodecDataPath.h"
+#include <mmf/server/mmfswcodecwrapper.h>
+
+
+class CMMFSwCodecPlayDataPath; //fwd ref
+class CMMFSwCodecUtility;	// fwd ref
+class MEmptyBuffersCustomInterface;	// fwd ref
+class MSetVbrFlagCustomInterface;	// fwd ref
+
+/**
+ * Active object used by the CMMFSwCodecPlayDataPath to send data to the sound
+ * driver  This particular active object encapsulates the asynchronous play 
+ * function, where a buffer of data is sent to the WINS audio device, and the
+ * active object's RunL is called when the buffer has been consumed by the 
+ * WINS audio device.
+ * @internalComponent
+ */
+class CDataPathPlayer : public CActive
+	{
+public:
+	CDataPathPlayer(CMMFSwCodecPlayDataPath& aParent, TInt aPriority);
+	~CDataPathPlayer();
+	void Start();
+	void ResumePlaying();
+	void PlayData(const CMMFDataBuffer& aData);
+	void Stop();
+	virtual void RunL();
+	virtual TInt RunError(TInt aError);
+	virtual void DoCancel();
+	virtual void Error(TInt aError);
+private:
+	CMMFSwCodecPlayDataPath& iParent;
+	const CMMFDataBuffer* iDataFromSource;
+	TBool iResumePlaying;
+	};
+
+/*
+* Active object used by CMMFSwCodecPlayDataPath to listening for error messages
+* from the WINS audio device.  If this object's RunL is called, playback has 
+* been terminated for some reason.  The active object then 
+* notifies its parent the datapath, so that proper cleanup and client 
+* notification can occur.
+* @internalComponent
+*/
+class CSoundDevPlayErrorReceiver : public CActive
+	{
+public:
+	CSoundDevPlayErrorReceiver(CMMFSwCodecPlayDataPath& aParent, TInt aPriority);
+	~CSoundDevPlayErrorReceiver();
+	void Start();
+	void Stop();
+	virtual void RunL();
+	virtual void DoCancel();
+private:
+	CMMFSwCodecPlayDataPath& iParent;
+	};
+
+
+/**
+ *  Derived class for play datapath internal to the Sw codec wrapper
+ *  @internalComponent
+ */
+class CMMFSwCodecPlayDataPath : public CMMFSwCodecDataPathX, 
+								public MEmptyBuffersCustomInterface, 
+								public MSetVbrFlagCustomInterface,
+								public MTimePlayedCustomInterface,
+								public MIgnoreUnderflowEventsCustomInterface
+	{ 
+public:	
+	static CMMFSwCodecPlayDataPath* NewL();
+	virtual ~CMMFSwCodecPlayDataPath(); 
+	virtual TInt SetObserver(MMMFHwDeviceObserver &aHwObserver);
+	virtual TInt AddCodec(CMMFSwCodec& aCodec);
+	virtual TInt Start();
+	virtual void Stop();
+	virtual void Pause();
+	virtual void BufferFilledL(CMMFDataBuffer& aBuffer);
+	virtual void BufferEmptiedL(const CMMFDataBuffer& aBuffer);
+	virtual void SoundDeviceException(TInt aError);
+	virtual RMdaDevSound& Device();
+	virtual void SetPlayCustomInterface(MPlayCustomInterface& aCustomInterface);
+	virtual TInt EmptyBuffers();
+	virtual TAny* CustomInterface(TUid aInterfaceId);
+	//From MSetVbrFlagCustomInterface
+	virtual void SetVbrFlag();
+	virtual TInt GetTimePlayed(TTimeIntervalMicroSeconds& aTime);
+	virtual void IgnoreUnderflowEvents();
+protected:	
+	CMMFSwCodecPlayDataPath() {};
+	void ConstructL();
+	void FillSourceBufferL();
+	void FillSoundDeviceBufferL();
+protected: 
+	CDataPathPlayer* iAudioPlayer;
+	CSoundDevPlayErrorReceiver* iSoundDeviceErrorReceiver;
+	RMdaDevSound iSoundDevice;
+	CMMFDataBuffer* iSourceBuffer;
+	CMMFDataBuffer* iSoundDeviceBuffer;
+	TBool iNoMoreSourceData;
+	TBool iSinkCanReceive;
+	TUint iSourceBufferSize;
+	TUint iSoundDevBufferSize;
+	CMMFSwCodecUtility* iUtility;
+	TBool iRampAudioSample;
+	MPlayCustomInterface* iCustomInterface;	// not owned
+	TTimeIntervalMicroSeconds iVolumeRamp;
+	// DEF048512
+	TInt iSampleRate;
+	TInt iChannels;
+	TBool iVbrFlag;
+	TInt64 iBytesPlayed;
+	TBool iNoMoreSoundDeviceData;
+	TBool iIgnoreUnderflow;
+	};
+
+#endif
+