/*

* Copyright (c) 2004 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:  Class definition for the 3gpDataSourceAdapter functions.

*

*/

#ifndef C3GPDATASOURCEADAPTER_H

#define C3GPDATASOURCEADAPTER_H

//  INCLUDES

#include "DataSourceAdapter.h"

//#include <mmf/server/mmfdatasource.h>

//#include <caf/caf.h>

#include <MultimediaDataSource.h>

#include <mmf/server/mmfdatasink.h>

#include <mp4lib.h>

// FORWARD DECLARATIONS

// CLASS DEFINITIONS

/**

*  This class provides C3gpDataSourceAdapter functions.

*

*  @lib C3gpDataSourceAdapter.lib

*  @since 3.2

*/

class C3gpDataSourceAdapter : 

	public CDataSourceAdapter,

	public MDataSink,

	public M3GPMP4LibAsyncObserver,

	public MMultimediaDataSourceObserver

    {

	public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        IMPORT_C static C3gpDataSourceAdapter* NewL();

        /**

        * Destructor.

        */

        IMPORT_C virtual ~C3gpDataSourceAdapter();

		// From MMultimediaDataSourceObserver

        IMPORT_C virtual void BufferFilled(CMMFBuffer* aBuffer);

        IMPORT_C virtual void Event(TUid aEvent);

        IMPORT_C virtual TInt GetBitRate(TUint& aBitRate);

		// From CDataSourceAdapter

		IMPORT_C virtual void FillBufferL( CMMFBuffer* aBuffer, MDataSink* aConsumer, TMediaId aMediaId);

		IMPORT_C virtual void SourcePrimeL();

		IMPORT_C virtual void SourceStopL();

        IMPORT_C virtual TInt SeekToTime(TUint aTimeMs, TUint& aFoundTimeMs);

		IMPORT_C virtual void SetDataSourceL(MDataSource* aDataSource,

											MMultimediaDataSourceObserver* aMMultimediaDataSourceObserver,

											MAsyncEventHandler* aMAsyncEventHandler);

		// From MDataSink

		// The following functions are declared as pure virtual in MDataSink, therefore

		// declared here.  However, they are not implemented.

		IMPORT_C virtual void BufferFilledL ( CMMFBuffer* aBuffer );

		IMPORT_C virtual void EmptyBufferL( CMMFBuffer* aBuffer, MDataSource* aSupplier, TMediaId aMediaId );

		IMPORT_C virtual TFourCC SinkDataTypeCode( TMediaId aMediaId );

		IMPORT_C virtual TBool CanCreateSinkBuffer();

		IMPORT_C virtual CMMFBuffer* CreateSinkBufferL( TMediaId aMediaId, TBool& aReference );

		IMPORT_C virtual void ConstructSinkL( const TDesC8& aInitData );

		// New

        IMPORT_C virtual TInt ReadHeader(TUint32& aAudioLength, TUint32& aAudioType, 

                                         TUint8& aFramesPerSample, TUint32& aTimeScale, TUint32& aAverateBitRate);

		IMPORT_C virtual TInt ReadAudioSpecificConfig(TUint8* aDecSpecInfo, TUint32 aDecSpecInfoSizeIn, TUint32* aDecSpecInfoSizeOut);

        IMPORT_C virtual TBool IsPositonSeekable();		

		// From M3GPMP4LibAsyncObserver

	    void M3GPMP4LibAudioFramesAvailable(MP4Err aError,

        								    mp4_u32 aAudioSize, 

        									mp4_u32 aTimeStamp, 

        									mp4_u32 aReturnedFrames,

 					                        mp4_u32 aTimestamp2);

        void M3GPMP4LibVideoFrameAvailable(MP4Err aError,

        								   mp4_u32 aFrameSize, 

        								   mp4_u32 aTimeStamp, 

        								   mp4_bool aKeyFrame, 

        								   mp4_u32 aTimestamp2);

	private:

        class CAsyncProxyFillBuffer : public CActive

            {

            public: // may want to export constructor and fillbuffer for 3gpdatasourceadapter

                CAsyncProxyFillBuffer(C3gpDataSourceAdapter& a3gpDataSourceAdapter);

            	~CAsyncProxyFillBuffer();

            	void ReadSync();

            protected:	

                void RunL();

                TInt RunError(TInt aError);

                void DoCancel();

            private:

                TRequestStatus* iRequestStatus;

                C3gpDataSourceAdapter& i3gpDataSourceAdapter;

            };

        /**

        * C++ default constructor.

        */

		C3gpDataSourceAdapter();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

		void ConstructL();

        void PrepareMP4ParserL();

        TInt TranslateMP4Err(MP4Err aError);

        CMMFDataBuffer* CreateSourceBufferOfSizeL(TUint aSize);

        void StartReadingSourceL();

        TInt ReadAsync();

        TInt ReadSyncL();

		void ResetVariables();

        // currently filling buffer

        CMMFBuffer* iFillingBuffer;

        MP4Handle iMP4Handle;

		// for getting data out from MP4Lib and keeping the extra data that cannot fit into shared buffers

        CMMFDataBuffer* iParserBuf;

        TUint iSourceReadPosition;

		ContentAccess::CData* iCafHandle;

		CMMFDataBuffer* iSrcBuf;

		TBool iContinueReading;

		CMMFClip* iClip;

        MDataSink* iControllerMDataSink;

		RPointerArray<CMMFBuffer> iQueuedAsyncBuffers;

		TInt iBufferIndex;

		TMediaId iMediaId;

		TBool iQueValid;

		CAsyncProxyFillBuffer*	iAsyncProxyFillBuffer;

		TBool iReadMp4LibSync;

		TBool iRestartSyncRead;

	    TBool iLastBufferWrittenToMp4Lib;

		TBool iMp4HeaderAvail;

		mp4_u32 iAudioType;

		MMultimediaDataSourceObserver* iControllerMMultimediaDataSourceObserver;

};

#endif 		// C3GPDATASOURCEADAPTER_H

// End of File