diff -r 000000000000 -r b8ed18f6c07b mmaudio_plat/frametable_api/inc/FrameTable.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mmaudio_plat/frametable_api/inc/FrameTable.h Thu Oct 07 22:34:12 2010 +0100 @@ -0,0 +1,138 @@ +/* +* Copyright (c) 2006 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 frame table functions. + * +*/ + + +#ifndef CFRAMETABLE_H +#define CFRAMETABLE_H + +// INCLUDES +#include + +// FORWARD DECLARATIONS +class MFrameTableEventObserver; + +// CLASS DEFINITIONS + +/** + * This class provides AAC utility functions. + * + * @lib AACAudioControllerUtility.lib + * @since 3.0 + */ +class CFrameTable : public CBase + { +public: + // Constructors and destructor + + enum TFrameTableEvent + { + EPosReached, + EDecodeInterval, + EPlayWindowEndPosReached + }; + + /** + * Two-phased constructor. + */ + IMPORT_C static CFrameTable* NewL(); + + /** + * Destructor. + */ + IMPORT_C virtual ~CFrameTable(); + +public: + // New functions + + IMPORT_C TInt InitFrameTable(TInt aSampleRate, TInt aSamplesPerFrame); + IMPORT_C TInt SubmitTableEntry(TUint aPos); + + IMPORT_C TInt FindFramePosFromTime(TUint& aTimeMs, TUint& aPos); + IMPORT_C TInt FindFrameTimeFromPos(TUint& aTimeMs, TUint& aPos); + IMPORT_C TInt LastFramePos(TUint& aPos); + IMPORT_C TInt LastFrameTime(TUint& aTimeMs); + + IMPORT_C void ShrinkTable(); + IMPORT_C void ResetTable(); + + IMPORT_C TInt SetSourceReference(TUint aTimeMs, TUint aPos); + + IMPORT_C TInt RegisterForEvent(TFrameTableEvent aEvent, + MFrameTableEventObserver* aObserver, TUint aParam); + IMPORT_C TInt UnRegisterForEvent(TFrameTableEvent aEvent, + MFrameTableEventObserver* aObserver); + IMPORT_C TInt Bitrate(); + IMPORT_C TInt IsSeeking(TBool& aIsSeeking); + IMPORT_C TInt GetLastPosEvent(TUint& aPos); + +private: + + class TBufRefPosEntry + { +public: + TUint iPos; + TUint iFrameNum; + }; + + /** + * C++ default constructor. + */ + CFrameTable(); + + /** + * By default Symbian 2nd phase constructor is private. + */ + void ConstructL(); + + TUint CalcFrameFromTimeMs(TUint aTimeMs); + TInt SubmitLowResTableEntry(TBufRefPosEntry& aEntry); + +private: + // Data + + RArray iFrameTable; + RArray iLowResFrameTable; + TUint iSampleRate; + TUint iSamplesPerFrame; + TUint iMsecPerFrame; + TUint iLastBytePos; + TUint iAvgBitrate; + TUint iOffset; + TUint iTimeRefMs; + TUint iBufCnt; + TUint iPosEventMs; + TUint iPlayWindowEndPosEventMs; + TInt iIntervalRef; + TUint iIntervalEvent; + MFrameTableEventObserver* iObserver; + TUint iEventPos; + TUint iCurrentFrameCount; + TUint iFramesPerLowResInterval; + TUint iLowResIntervalMs; + TUint iFrameNum; + TBool iOkToShrink; + }; + +class MFrameTableEventObserver + { +public: + virtual TInt + HandleFrameTableEvent(CFrameTable::TFrameTableEvent aEvent) = 0; + }; + +#endif // CFRAMETABLE_H +// End of File