// 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 __MMFBTSWCODECPLAYDATAPATH_H__

 #define __MMFBTSWCODECPLAYDATAPATH_H__

 #include "mmfBtSwCodecDataPath.h"

 #include "mmfbtswcodecwrapper.h"

 class CMMFSwCodecPlayDataPath; //fwd ref

 class CMMFSwCodecUtility;	// fwd ref

 class CRoutingSoundPlayDevice;	// 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 CMMFSwCodecDataPath

 	{ 

 public:	

 	static CMMFSwCodecPlayDataPath* NewL(CRoutingSoundPlayDevice* aSoundDevice,

 										 TUid aDeviceUid);

 	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 CRoutingSoundPlayDevice* Device();

 	virtual void SetPlayCustomInterface(MPlayCustomInterface& aCustomInterface);

 	virtual void SetConfigForAudioRamp(TUint aSampleRate, TUint aChannels); //need for audio ramper

 protected:	

 	CMMFSwCodecPlayDataPath(CRoutingSoundPlayDevice* aSoundDevice, TUid aDeviceUid) :

 							iSoundDevice(aSoundDevice), iDeviceUid(aDeviceUid) {};

 	void ConstructL();

 	void FillSourceBufferL();

 	void FillSoundDeviceBufferL();

 protected: 

 	CDataPathPlayer* iAudioPlayer;

 	CSoundDevPlayErrorReceiver* iSoundDeviceErrorReceiver;

 	CRoutingSoundPlayDevice* iSoundDevice;	// Not owned

 	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;

 	TUid iDeviceUid;	// required to close the RoutingSoundPlayDevice

 	};

 #endif