/*

* Copyright (c) 2006-2007 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:  Implementation of streaming and playback on ASF channel url

*

*/

/* ---------------------------------------------------------------------------

*  Version history:

*  Template version:

*  <ccm_history>

*

*  Version: 1, Fri Sep 19 13:00:00 2008 by Rohit

*  Ref:

*  Created

*

*  </ccm_history>

* ============================================================================

*/

#ifndef IRASFPLAYER_H

#define IRASFPLAYER_H

//#include "ircontrolparams.h"

//#include "irmediaenginedef.h"

//#include "irmediaengineinterface.h"

#include <mdaaudiosampleplayer.h>	// MMdaAudioPlayerCallback

// Forward declarations

class MIRCtrlCmdObserver;

class MIRStreamSourceObserver;

class CIRMetaData;

//==============================class declaration CIRAsfPlayer==============================

/*

MIRCtrlCmdObserver functions invoked by AsfPlayer

	FetchVolume

MIRStreamSourceObserver functions invoked by AsfPlayer

	Asf_ErrorConnecting

	Asf_ConnectionEstablished

	Asf_UpdateProgress

	Asf_HandleMetaDataReceivedL

*/

/**

 * This class is the implementation of Asf format streaming and playback

 * 

 * @code

 * @endcode

 */

NONSHARABLE_CLASS(CIRAsfPlayer) : public MMdaAudioPlayerCallback,

								  public MAudioLoadingObserver 

	{

public:

									//Member Functions

	/**

	 * Function : NewL

	 * function returns an instance of CIRAsfPlayer

	 * Two phase constructor

	 * @return instance of CIRAsfPlayer

	 */

	IMPORT_C static CIRAsfPlayer* NewL(MIRStreamSourceObserver& aStreamObserver, 

									   MIRCtrlCmdObserver& aCtrlCmdObserver);

	/**

	 * Function : NewLC

	 * function creates an instance of CIRAsfPlayer

	 * Two phase constructor

	 * @return instance of CIRAsfPlayer

	 */

	IMPORT_C static CIRAsfPlayer* NewLC(MIRStreamSourceObserver& aStreamObserver, 

										MIRCtrlCmdObserver& aCtrlCmdObserver);

	/**

	 * Function : ~CIRAsfPlayer

	 * Default Destructor

	 */

	virtual ~CIRAsfPlayer();

//Function which control the play

	/**

	 * Function : Play

	 * function to which intiate the player

	 */

	IMPORT_C void PlayL(const TDesC& aUri);

	/**

	 * Function : Play

	 * function to which intiate the player

	 */

	IMPORT_C void Play();

	/**

	 * Function : Stop

	 * function to which stop the player

	 */

	IMPORT_C void Stop();   	     

//Function to control the volume

	IMPORT_C void SetVolume(TInt aVolume);

	IMPORT_C TInt Volume() const;

	IMPORT_C TInt MaxVolume() const;

// Helper functions

	IMPORT_C static TBool DetectAsfChannel(const TDesC& aUri);

private:

	/**

	 * Function: CIRAsfPlayer

	 * This function is the default constructor

	 */

	CIRAsfPlayer(MIRStreamSourceObserver& aStreamObserver, MIRCtrlCmdObserver& aCtrlCmdObserver);

	/**

	 * Function: ConstructL

	 * Two phase constructor is used to intialize data members

	 */

	void ConstructL();

	/**

	 * Function: ReadMetadataL

	 * Reads the meta data from the CMdaAudioPlayerUtility

	 */

	void ReadMetadataL();

//Call back functions

public:	

	// MMdaAudioPlayerCallback members

	void MapcInitComplete(TInt aError, const TTimeIntervalMicroSeconds& aDuration);

	void MapcPlayComplete(TInt aError);

	// MAudioLoadingObserver

	void MaloLoadingStarted();

	void MaloLoadingComplete();

private:	

	//Enum for Play State

	enum TState

		{

		ENotReady,    //Not ready to play

		EReadyToPlay, //Ready to play

		EPlaying      //Playing

		};

	//For implement Player functionalities

    /**

     * CMdaAudioPlayerUtility instance to stream Asf stream

     * Owned

     */

    CMdaAudioPlayerUtility* iMdaAudioPlayer;

    /**

     * Current meta data information.

     * Owned

     */

    CIRMetaData* iMetaData;

    /**

     * URI of the station server

     * Owned

     */

	RBuf	iStationUri;

	// Observer for streaming and playback events

	/**

	 * MIRCtrlCmdObserver reference to get volume setting

	 */

    MIRCtrlCmdObserver& iCtrlCmdObserver;

	/**

	 * Reference of the Stream source observer

	 */

    MIRStreamSourceObserver& iStreamObserver;

	// Player state	

	TState iState; 		

	};  

#endif//IRASFPLAYER_H