author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 01:08:46 +0200 | |
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permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Class definition for the 3gpDataSourceAdapter functions. |
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* |
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*/ |
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#ifndef C3GPDATASOURCEADAPTER_H |
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#define C3GPDATASOURCEADAPTER_H |
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// INCLUDES |
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#include "DataSourceAdapter.h" |
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//#include <mmf/server/mmfdatasource.h> |
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//#include <caf/caf.h> |
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#include <MultimediaDataSource.h> |
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#include <mmf/server/mmfdatasink.h> |
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#include <mp4lib.h> |
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// FORWARD DECLARATIONS |
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// CLASS DEFINITIONS |
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/** |
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* This class provides C3gpDataSourceAdapter functions. |
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* |
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* @lib C3gpDataSourceAdapter.lib |
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* @since 3.2 |
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*/ |
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class C3gpDataSourceAdapter : |
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public CDataSourceAdapter, |
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public MDataSink, |
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public M3GPMP4LibAsyncObserver, |
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public MMultimediaDataSourceObserver |
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{ |
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public: // Constructors and destructor |
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/** |
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* Two-phased constructor. |
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*/ |
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IMPORT_C static C3gpDataSourceAdapter* NewL(); |
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/** |
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* Destructor. |
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*/ |
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IMPORT_C virtual ~C3gpDataSourceAdapter(); |
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// From MMultimediaDataSourceObserver |
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IMPORT_C virtual void BufferFilled(CMMFBuffer* aBuffer); |
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IMPORT_C virtual void Event(TUid aEvent); |
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IMPORT_C virtual TInt GetBitRate(TUint& aBitRate); |
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// From CDataSourceAdapter |
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IMPORT_C virtual void FillBufferL( CMMFBuffer* aBuffer, MDataSink* aConsumer, TMediaId aMediaId); |
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IMPORT_C virtual void SourcePrimeL(); |
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IMPORT_C virtual void SourceStopL(); |
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IMPORT_C virtual TInt SeekToTime(TUint aTimeMs, TUint& aFoundTimeMs); |
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IMPORT_C virtual void SetDataSourceL(MDataSource* aDataSource, |
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MMultimediaDataSourceObserver* aMMultimediaDataSourceObserver, |
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MAsyncEventHandler* aMAsyncEventHandler); |
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// From MDataSink |
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// The following functions are declared as pure virtual in MDataSink, therefore |
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// declared here. However, they are not implemented. |
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IMPORT_C virtual void BufferFilledL ( CMMFBuffer* aBuffer ); |
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IMPORT_C virtual void EmptyBufferL( CMMFBuffer* aBuffer, MDataSource* aSupplier, TMediaId aMediaId ); |
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IMPORT_C virtual TFourCC SinkDataTypeCode( TMediaId aMediaId ); |
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IMPORT_C virtual TBool CanCreateSinkBuffer(); |
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IMPORT_C virtual CMMFBuffer* CreateSinkBufferL( TMediaId aMediaId, TBool& aReference ); |
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IMPORT_C virtual void ConstructSinkL( const TDesC8& aInitData ); |
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// New |
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IMPORT_C virtual TInt ReadHeader(TUint32& aAudioLength, TUint32& aAudioType, |
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TUint8& aFramesPerSample, TUint32& aTimeScale, TUint32& aAverateBitRate); |
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IMPORT_C virtual TInt ReadAudioSpecificConfig(TUint8* aDecSpecInfo, TUint32 aDecSpecInfoSizeIn, TUint32* aDecSpecInfoSizeOut); |
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IMPORT_C virtual TBool IsPositonSeekable(); |
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// From M3GPMP4LibAsyncObserver |
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void M3GPMP4LibAudioFramesAvailable(MP4Err aError, |
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mp4_u32 aAudioSize, |
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mp4_u32 aTimeStamp, |
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mp4_u32 aReturnedFrames, |
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mp4_u32 aTimestamp2); |
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void M3GPMP4LibVideoFrameAvailable(MP4Err aError, |
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mp4_u32 aFrameSize, |
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mp4_u32 aTimeStamp, |
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mp4_bool aKeyFrame, |
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mp4_u32 aTimestamp2); |
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private: |
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class CAsyncProxyFillBuffer : public CActive |
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{ |
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public: // may want to export constructor and fillbuffer for 3gpdatasourceadapter |
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CAsyncProxyFillBuffer(C3gpDataSourceAdapter& a3gpDataSourceAdapter); |
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~CAsyncProxyFillBuffer(); |
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void ReadSync(); |
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protected: |
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void RunL(); |
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TInt RunError(TInt aError); |
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void DoCancel(); |
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private: |
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TRequestStatus* iRequestStatus; |
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C3gpDataSourceAdapter& i3gpDataSourceAdapter; |
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}; |
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/** |
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* C++ default constructor. |
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*/ |
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C3gpDataSourceAdapter(); |
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|
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/** |
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* By default Symbian 2nd phase constructor is private. |
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*/ |
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void ConstructL(); |
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void PrepareMP4ParserL(); |
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TInt TranslateMP4Err(MP4Err aError); |
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CMMFDataBuffer* CreateSourceBufferOfSizeL(TUint aSize); |
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void StartReadingSourceL(); |
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TInt ReadAsync(); |
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TInt ReadSyncL(); |
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void ResetVariables(); |
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// currently filling buffer |
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CMMFBuffer* iFillingBuffer; |
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MP4Handle iMP4Handle; |
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// for getting data out from MP4Lib and keeping the extra data that cannot fit into shared buffers |
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CMMFDataBuffer* iParserBuf; |
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TUint iSourceReadPosition; |
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ContentAccess::CData* iCafHandle; |
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CMMFDataBuffer* iSrcBuf; |
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TBool iContinueReading; |
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CMMFClip* iClip; |
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MDataSink* iControllerMDataSink; |
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RPointerArray<CMMFBuffer> iQueuedAsyncBuffers; |
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TInt iBufferIndex; |
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TMediaId iMediaId; |
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TBool iQueValid; |
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CAsyncProxyFillBuffer* iAsyncProxyFillBuffer; |
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TBool iReadMp4LibSync; |
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TBool iRestartSyncRead; |
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TBool iLastBufferWrittenToMp4Lib; |
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TBool iMp4HeaderAvail; |
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mp4_u32 iAudioType; |
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MMultimediaDataSourceObserver* iControllerMMultimediaDataSourceObserver; |
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}; |
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#endif // C3GPDATASOURCEADAPTER_H |
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// End of File |