/*

* Copyright (c) 2006-2009 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:  Harvests meta data from video file.*

*/

#ifndef __CHARVESTERVIDEOPLUGIN_H__

#define __CHARVESTERVIDEOPLUGIN_H__

#include <e32base.h>

#include "harvesterplugin.h"

#include "mimetypemapping.h"

// FORWARD DECLARATION

class CMdEObjectDef;

class CMdEPropertyDef;

class CMdEObject;

class CHarvesterData;

class TVideoMetadataHandling

	{

	public:

		enum TVideoMetadataHandlingLibrary

			{

			EMp4LibHandling,

			EHexilMetadataHandling

			};

		TVideoMetadataHandlingLibrary iLibrary;

		TPtrC iObjectDef;

		TPtrC iVideoMime;

		TPtrC iAudioMime;

		TVideoMetadataHandling()

			{		

			}

		TVideoMetadataHandling(TVideoMetadataHandlingLibrary aLibrary, 

				TPtrC aObjectDef, TPtrC aVideoMime, TPtrC aAudioMime) :

			iLibrary( aLibrary ), iObjectDef( aObjectDef ),

			iVideoMime( aVideoMime ), iAudioMime( aAudioMime ) 

			{		

			}

		TVideoMetadataHandling(const TVideoMetadataHandling& aHandling) :

			iLibrary( aHandling.iLibrary ), iObjectDef( aHandling.iObjectDef ),

			iVideoMime( aHandling.iVideoMime ), iAudioMime( aHandling.iAudioMime )

			{

			}

	};

typedef TMimeTypeMapping<TVideoMetadataHandling> THarvestingHandling;

/**

* A data transfer class for harvested video metadata.

*/

class CVideoHarvestData : public CBase

    {

    public:

    	TBool iVideoObject; // Is object video or audio

    	TTime iModified;

    	TInt64 iFileSize; // in bytes

        TReal32 iDuration; // in seconds

        TReal32 iFrameRate; // in frames per second

        TReal32 iSamplingFrequency; // in kHz 

        TInt iVideoBitrate; // in kbps

        TInt iAudioBitrate; // in kbps

        TInt iClipBitrate; // in kbps

        TInt16 iFrameWidth;

        TInt16 iFrameHeight;

        HBufC* iCopyright;

        HBufC* iAuthor;

        HBufC* iGenre;

        HBufC* iPerformer; // Artist

        HBufC* iDescription;

        HBufC* iTitle;

        HBufC* iMimeBuf;

        TUint32 iCodec;

        CVideoHarvestData() : CBase()

        	{

        	}

        ~CVideoHarvestData()

        	{

        	delete iCopyright;

            delete iAuthor;

            delete iGenre;

            delete iPerformer;

            delete iDescription;

            delete iTitle;

        	delete iMimeBuf;

        	}

    };

/**

 * Helper class to hold all property definitions 

 * (pointers are not owned) used in harvester video plug-in.

 */

class CHarvesterVideoPluginPropertyDefs : public CBase

	{

	public:

		// Common property definitions

		CMdEPropertyDef* iCreationDatePropertyDef;

		CMdEPropertyDef* iLastModifiedDatePropertyDef;

		CMdEPropertyDef* iSizePropertyDef;

		CMdEPropertyDef* iTimeOffsetPropertyDef;

		CMdEPropertyDef* iItemTypePropertyDef;

		CMdEPropertyDef* iTitlePropertyDef;

		// Media property definitions

		CMdEPropertyDef* iReleaseDatePropertyDef;

		CMdEPropertyDef* iCaptureDatePropertyDef;

		CMdEPropertyDef* iDurationPropertyDef;

		CMdEPropertyDef* iWidthPropertyDef;

		CMdEPropertyDef* iHeightPropertyDef;

		CMdEPropertyDef* iBitratePropertyDef;

		CMdEPropertyDef* iCopyrightPropertyDef;

		CMdEPropertyDef* iAuthorPropertyDef;

		CMdEPropertyDef* iGenrePropertyDef;

		CMdEPropertyDef* iArtistPropertyDef;

		CMdEPropertyDef* iDescriptionPropertyDef;

		CMdEPropertyDef* iAudioFourCCDef;

		// Video property definitions

		CMdEPropertyDef* iFrameratePropertyDef;

		// Audio property definitions

		CMdEPropertyDef* iSamplingFrequencyPropertyDef;

	private:

		CHarvesterVideoPluginPropertyDefs();

		void ConstructL(CMdEObjectDef& aObjectDef);

	public:	

		static CHarvesterVideoPluginPropertyDefs* NewL(CMdEObjectDef& aObjectDef);

	};

class CHarvesterVideoPlugin : public CHarvesterPlugin

  	{

	public:

		/**

		* Constructs a new CHarvesterVideoPlugin implementation.

		*

		* @return A pointer to the new CHarvesterVideoPlugin implementation

		*/

		static CHarvesterVideoPlugin* NewL();

		/**

		* Destructor

		*/

		virtual ~CHarvesterVideoPlugin();

		void GetObjectType( const TDesC& aUri, TDes& aObjectType );

		/**

		* Harvests several files. Inherited from CHarvestPlugin.

		*

		* @param aHarvesterData  CHarvesterData datatype containing needed harvest data

 		* @param aClientData  TAny* to client specific data

		*/

		void HarvestL( CHarvesterData* aHD );

    protected: // from CHarvesterPlugin

        void GetMimeType( const TDesC& aUri, TDes& aMimeType );

	private:

		/**

		* C++ constructor - not exported;

		* implicitly called from NewL()

		*

		* @return an instance of CHarvesterVideoPlugin.

		*/

		CHarvesterVideoPlugin();

		/**

		* 2nd phase construction, called by NewLC()

		*/

		void ConstructL();

		/**

        * Gathers data from file to meta data object.

        *

        * @param aMetadataObject  A reference to meta data object to gather the data.

        * @param aHarvestData  An object to store harvested video file data.

        */

        void GatherDataL( CMdEObject& aMetadataObject, CVideoHarvestData& aHarvestData );

        /**

         * Handle addition of new mde video objects.

         *

         * @param aMetadataObject  A reference to meta data object to gather the data.

         * @param aHarvestData  An object containing harvested video file data.

         */

        void HandleObjectPropertiesL( CHarvesterData& aHD, CVideoHarvestData& aVHD, TBool aIsAdd );

	private:

		void GetMp4Type( RFile64& aFile, TDes& aType );

		void GetRmTypeL( RFile64& aFile, TDes& aType );

		const THarvestingHandling* FindHandler( const TDesC& aUri );

		void CheckForCodecSupport( HBufC* aMimeBuffer, CVideoHarvestData& aVHD );

	private:

		RArray<THarvestingHandling> iMimeTypeMappings;

		CHarvesterVideoPluginPropertyDefs* iPropDefs;

	};

#endif // __CHARVESTERVIDEOPLUGIN_H__