--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmfenh/advancedaudiocontroller/audiocontrollerpluginsvariant/3gpDataSourceAdapter/Inc/3gpDataSourceAdapter.h	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,175 @@
+/*
+* 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