// 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