/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:    RTP clip repairer for common recording engine.*

*/

#ifndef CRTPCLIPREPAIRER_H

#define CRTPCLIPREPAIRER_H

// INCLUDES

#include <ipvideo/CRtpFileBase.h>

#include "CCRRtpFileSource.h"

#include <ipvideo/MRtpClipRepairObserver.h>

// CONSTANTS

// None

// MACROS

// None

// DATA TYPES

// None

// FORWARD DECLARATIONS

class CRtpMetaHeader;

// CLASS DECLARATION

/**

*  Repairs corrupted DVB-H RTP clip.

*  

*  @lib DvrRtpClipHandler.lib

*  @since Series 60 3.0

*/

class CRtpClipRepairer : public CRtpFileBase

    {

public: // Constructors and destructor

    /**

    * Two-phased constructor.

    * @since Series 60 3.0

    * @param aObs observer for repair status

    * @return None.

    */

    static CRtpClipRepairer* NewL( MRtpClipRepairObserver* aObs );

    /**

    * Destructor.

    */

    virtual ~CRtpClipRepairer();

public: // New functions

    /**

    * Check if corrupted meta header can be fixed.

    * @since Series 60 3.0

    * @param aClipName a full path of the clip.

    * @return None.

    */

    void CheckMetaHeaderL( const TDesC& aClipName ); 

    /**

    * Getter for the clip name under repairing.

    * @since Series 60 3.0

    * @return a full path of the clip under repairing.

    */

    TPtrC CurrentClipName(); 

private: // Constructors and destructor

    /**

    * C++ default constructor.

    * @since Series 60 3.0

    * @param aObs observer for repair status

    */

    CRtpClipRepairer( MRtpClipRepairObserver* aObs );

    /**

    * Symbian 2nd phase constructor can leave and is private by default.

    */

    void ConstructL();

private: // Functions from base classes

    /**

    * From CRtpFileBase.

    * Called when request completion event occurs.

    * @since Series 60 3.0

    * @param none.

    * @return none.

    */

    void RunL();

    /**

    * From CRtpFileBase.

    * Handles a leave occurring in the request completion event handler RunL().

    * @since Series 60 3.0

    * @param aError the leave code.

    * @return a status of function.

    */

    TInt RunError( TInt aError );

    /**

    * From CRtpFileBase : Called when request completion event cancelled.

    * @since Series 60 3.0

    * @param none.

    * @return None.

    */

    void DoCancel();

private: // New functions

    /**

    * Veryfies that seek header and array are valid.

    * @since Series 60 3.0

    * @param none.

    * @return true if are, otherwise false.

    */

    TBool ValidSeekHeaderL();

    /**

    * Scans whole clip and updates seek array for it.

    * @since Series 60 3.0

    * @param none.

    * @return none.

    */

    void UpdateSeekArrayL();

    /**

    * Activates asyncronous group header reading.

    * @since Series 60 3.0

    * @param none.

    * @return none.

    */

    void ReadNextGroupHeaderFromFileL();

    /**

    * Appends rec groups to seek array in 30s interval.

    * @since Series 60 3.0

    * @param none.

    * @return none.

    */

    void GroupToSeekArrayL();

    /**

    * Adds special packet to the end.

    * @since Series 60 3.0

    * @param aType a type of special packet.

    * @return none.

    */

    void AddSpecialPacketL( const MRtpFileWriteObserver::TRtpType aType );

    /**

    * Saves readed seek array.

    * @since Series 60 3.0

    * @param aError a error code.

    * @return none.

    */

    void FinalizeSeekArrayL( const TInt aError );

private: // Data

    /**

    * Repair observer.

    */

    MRtpClipRepairObserver* iObs;

    /**

    * File data buffer.

    */

    HBufC8* iFileData;

    /**

    * Meta header.

    */

    CRtpMetaHeader* iMetaHeader;

    /**

    * Last group time.

    */

    TUint iLastGroupTime;

    /**

    * Seek array point.

    */

    TInt iSeekArrayPoint;

  };

#endif // CRTPCLIPREPAIRER_H

// End of File