diff -r 000000000000 -r 1bce908db942 multimediacommscontroller/mmccamrpayloadformat/inc/amrpayloadencoderoa.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/multimediacommscontroller/mmccamrpayloadformat/inc/amrpayloadencoderoa.h Tue Feb 02 01:04:58 2010 +0200 @@ -0,0 +1,117 @@ +/* +* 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 class for decoding of RTP payload format +* for AMR ( wide band ) audio codecs. +* +*/ + + + + +#ifndef AMRPAYLOADENCODEROA_H +#define AMRPAYLOADENCODEROA_H + +// INCLUDES +#include +#include "amrpayloadencoder.h" +#include "amrframe.h" + +// CLASS DECLARATION + +/** +* The Amr payload encoder for octet aligned ( OA ) mode. +* +* @lib Mccamrplformat.dll +* @since Series 60 3.1 +*/ +class CAmrPayloadEncoderOA : public CAmrPayloadEncoder + { + +public: // Constructors and destructor + + /** + * Two-phased constructor. + */ + static CAmrPayloadEncoderOA* NewL( TBool aIsNb ); + + /** + * Destructor. + */ + ~CAmrPayloadEncoderOA(); + +public: // Functions + + /** + * Encode a received Amr frame into the payload buffer. + * @since Series 60 3.1 + * @param aChannel - [input] Channel number that the frame belongs + * to + * @param aFrameType - [input] Frame type + * @param aFrameQualityInd - [input] Frame quality indicator bit; + * 1 if frame OK; 0 if frame damaged + * @param aFrameData - [input] Frame data; its length depends on + * frame type + * @return ETrue if payload formatting is completed; otherwise EFalse + */ + virtual TBool EncodeFrame( TInt aChannel, TAmrFrameType aFrameType, + TUint8 aFrameQualityInd, const TDes8& aFrameData ); + +public: // Functions from CAmrPayloadEncoder + + /** + * Set number of audio channels. + * @since Series 60 3.1 + * @param aChannelCount - [input] Number of audio channels + * @return KErrNone if successful; system wide error code otherwise + */ + virtual TInt SetChannelCount( TInt aChannelCount ); + + /** + * Set number of Amr frame blocks included in one RTP packet. + * Each frame block contains frames for all audio channels. + * @since Series 60 3.1 + * @param aFrameblockCount - [input] Number of Amr frame blocks + * included in one RTP packet + * @return KErrNone if successful; system wide error code otherwise + */ + virtual TInt SetFrameBlockCount( TInt aFrameblockCount ); + +protected: + + /** + * Constructor. + */ + CAmrPayloadEncoderOA( TBool aIsNb ); + +private: + + /** + * By default Symbian 2nd phase constructor is private. + */ + void ConstructL(); + + /** + * Initialize frame encoder ( CStreamEncoder ). + * Information to initialize are obtained from iPayload, calculation + * using iChannelCount and iFrameBlockCount. Initialization should be + * done whenever a payload is finished. + * @since Series 60 3.1 + */ + virtual void InitializeFrameEncoder(); + + }; + + + +#endif // AMRPAYLOADENCODEROA_H