diff -r 000000000000 -r 1bce908db942 multimediacommscontroller/mmccamrpayloadformat/inc/amrpayloaddecoderoa.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/multimediacommscontroller/mmccamrpayloadformat/inc/amrpayloaddecoderoa.h Tue Feb 02 01:04:58 2010 +0200 @@ -0,0 +1,95 @@ +/* +* 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: Formatter classes for decoding of RTP payload format +* for AMR ( wide band ) audio codecs. +* +*/ + + + + +#ifndef AMRPAYLOADDECODEROA_H +#define AMRPAYLOADDECODEROA_H + +// INCLUDES +#include +#include "amrpayloaddecoder.h" +#include "amrpayloadheaderoa.h" +#include "amrtocentryoa.h" +#include "amrframe.h" + + +/** +* The Amr payload decoder for octet aligned ( OA ) mode. +* +* @lib Mccamrplformat.dll +* @since Series 60 3.1 +*/ +class CAmrPayloadDecoderOA : public CAmrPayloadDecoder + { + +public: // Constructors and destructor + + /** + * Two-phased constructor. + */ + static CAmrPayloadDecoderOA* NewL( TBool aIsNb ); + + /** + * Destructor. + */ + ~CAmrPayloadDecoderOA(); + +public: // Functions + + /** + * Decode payload data received in the payload buffer. If AMR FEC is + * used and redundant frames are discarded, time stamp is increased to + * correspond start of remaining frames. + * @since Series 60 3.1 + * @param aTimeStamp Time stamp from RTP header + * @param aTimeStampInc Unit for time stamp incrementing + * @return TInt - Number of AMR frames decoded + */ + virtual TInt DecodePayload( TUint32& aTimeStamp, TUint32 aTimeStampInc ); + +private: + + /** + * Constructor. + */ + CAmrPayloadDecoderOA( TBool aIsNb ); + + /** + * By default Symbian 2nd phase constructor is private. + */ + void ConstructL(); + +protected: + + /** + * Calculate frames' starting Byte and Bit positions in a given payload + * buffer and update `iFrames' array with the frames' positions. + * @since Series 60 3.1 + * @param aBuffer - [input] Payload buffer. + * @param aFrameCount - [input] Number of frames included in the + * payload buffer. + */ + virtual void CalculateFramePosition( const TUint8* aBuffer, + TInt aFrameCount ); + + + }; + +#endif // AMRPAYLOADDECODEROA_H \ No newline at end of file