/*
* 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:
*
*/
#ifndef AMRPAYLOADHEADER_H
#define AMRPAYLOADHEADER_H
#include <e32base.h>
#include "amrpayloadformatter.h"
// FORWARD DECLARATIONS
class TStreamEncoder;
class TStreamDecoder;
// MACROS
// CLASS DECLARATION
/**
* The Amr payload header in bandwidth efficient mode.
*
* @lib Mccamrplformat.dll
* @since Series 60 3.1
*/
class CAmrPayloadHeader : public CBase
{
public: // Constructors and destructor
public: // Constructors and destructor
/**
* Two-phased constructor.
*/
static CAmrPayloadHeader* NewL();
/**
* Destructor.
*/
~CAmrPayloadHeader();
public: // New functions
/**
* Encode the payload header fields into a given buffer at the given
* position. Values to encode are obtained from the corresponding
* header fields. Byte and bit positions are updated after encoding
* is done.
* @since Series 60 3.1
* @param aBuffer - [output] Buffer to store encoded data.
* @param aByteIndex - [input] Starting byte index ( starts from
* zero ).
* [output] Byte index updated after encoding.
* @param aBitIndex - [input] Starting bit index
* ( starts from zero ).
* [output] Bit index updated after encoding.
*/
virtual void Encode( TUint8* aBuffer, TInt& aByteIndex,
TInt& aBitIndex );
/**
* Decode the payload header from a given buffer at the given position.
* Decoded values are returned in the corresponding header fields.
* Byte and bit positions are updated after decoding is done.
* @since Series 60 3.1
* @param aBuffer - [input] Buffer to decode data from.
* @param aByteIndex - [input] Starting byte index ( starts from
* zero ).
* [output] Byte index updated after decoding.
* @param aBitIndex - [input] Starting bit index
* ( starts from zero ).
* [output] Bit index updated after decoding.
*/
virtual void Decode( const TUint8* aBuffer, TInt& aByteIndex,
TInt& aBitIndex );
protected: // Functions
/**
* Constructor.
*/
CAmrPayloadHeader();
public: // Data. Payload header fields
// Codec mode request ( CMR, 4 bits )
TAmrModeRequest iCmr;
};
#endif // AMRPAYLOADHEADER_H