/*

* Copyright (c) 2005-2006 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:   This class acts as a high level wrapper around the media server

*                playback and recording functionalities.

*

*/

#ifndef AUDIOMESSAGERECORDER_H

#define AUDIOMESSAGERECORDER_H

#include <e32base.h>

#include <mdaaudiosampleeditor.h>

class MAmsVoiceObserver;

class CAudioOutput;

class CAudioInput;

class CMdaAudioRecorderUtility;

class CAudioMessageBeep;

const TInt KAmsDisplayUpdateDelay = 200000;

/**

 *	Class for control recording and playing operations

 *

 *  @lib audiomessage.exe

 *  @since S60 v3.1

 */

class CAudioMessageRecorder 

	: public CBase, public MMdaObjectStateChangeObserver

	{

	public:

		/**

		 * Default constructor

		 */

		CAudioMessageRecorder(); 

		/**

		 * Destructor

		 */

		~CAudioMessageRecorder();

		static CAudioMessageRecorder* NewL(const RFile& aFile, const TBool aAudioOutput );

    private:

   		void ConstructL(const RFile& aFile, const TBool aAudioOutput  );

	public:

		/**

		 * Encapsulates the interface for handling the change of state of

		 * an audio data sample object.

		 * @param aObject A pointer to the audio sample object that has

		 *				 changed state.

		 * @param aPreviousState The state before the change

		 * @param aCurrentState The state after the change

		 * @param aErrorCode If not KErrNone, then the error that

		 *					caused the state change

		 */

	    void MoscoStateChangeEvent(CBase* aObject, TInt aPreviousState, 

	    	TInt aCurrentState, TInt aErrorCode);

		/**

		 * Registers an observer for receiving update notifications.

		 * @param aObserver The observer object.

		 */

		void SetObserver( MAmsVoiceObserver* aObserver );

		/**

		 * Starts recording.

		 */

		void StartRecordingL();

		/**

		 * Starts playback.

		 */

		void StartPlayingL();

		/**

		 * Stops playback or recording.

		 */

		void StopL(); 

		/**

		 * Pauses recording.

		 */

		void Pause(); 

		/**

		 * Continues recording.

		 */

		void ContinueL();

		/**

		 * Position for pause use

		 * @return position in ms

		 */

	    TTimeIntervalMicroSeconds GetPosition();

		/**

		 * Duration for playing use

		 * @return position in ms

		 */

	    TTimeIntervalMicroSeconds GetDuration();

		/**

		 * bitrate for size calc.

		 */

		TUint GetBitRateL();

		/**

		 * Stops and deletes the timer object.

		 */

		void StopTimer();

		/**

		 * increace vol.

		 */

		void IncrementVol();

		/**

		 * dec vol.

		 */

		void DecrementVol();

		/**

		 * Gets volume

		 * @return currentvolume

		 */

		TInt GetCurrentVolume();

		/**

		 * Sets volume

		 * @param aVal wanted volume

		 */

		void SetVol(TInt aVal);

		/**

		 * Sets audiorouting 

		 * @param EFalse earpiece,ETrue loudspkr

		 */

		TInt SetAudioOutput(TBool aOutputPublic);

		/**

		 * Initialize routing

		 */

		void InitializeAudioRoutingL();

	private:

		/**

		* Creates and starts a CPeriodic timer object

		* with a resolution of one second.

		*/

		void StartTimer();

		static TInt TimerCallBack( TAny* aMdaRecorder );

		void HandleTick();

		void ResetAudioInputL();

	private: //data

		/**

		 * Pointer to the media server audio recorder object. 

		 * Owned.

		 */

		CMdaAudioRecorderUtility* iRecUtility;

		/**

		 * CActiveScheduler wrapper object.

		 * Owned.

		 */

		CActiveSchedulerWait iActiveWait;

		/**

		 * Pointer to the timer object. 

		 * Owned.

		 */

		CPeriodic* iTimer;

		/**

		 * Pointer to the status observer. 

		 * Not owned.

		 */

		MAmsVoiceObserver* iObserver;

		/**

		 * Pointer to the audiorouting object. 

		 * Owned.

		 */

	 	CAudioOutput* iAudioOutput;

	 	CAudioInput* iAudioInput;

		/**

		 * For storing current volume

		 */

	    TInt iCurrentVolume;   

		/**

		 * True if outputrouting is supported

		 */

	    TBool iSupportAudioOutput;

		/**

		* For playing the recording start and stop tones. 

		* Owned.

		*/

	    CAudioMessageBeep* iBeepPlayer;

		/**

		 * ETrue if pause

		 */

		TBool iPause;

      	TInt iErrorCode; 

	};

#endif // AUDIOMESSAGERECORDER_H