--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/multimediacommscontroller/mmccamrpayloadformat/src/amrpayloadheader.cpp	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,112 @@
+/*
+* 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:    PayloadFormat plugin capable to read RTP payload containing
+*                Amr audio.
+*
+*/
+
+
+
+
+// INCLUDE FILES
+#include "amrpayloadheader.h"
+#include "streamformatter.h"
+
+// CONSTANTS
+
+
+// ============================= LOCAL FUNCTIONS ===============================
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// ---------------------------------------------------------------------------
+// CAmrPayloadHeader::CAmrPayloadHeader
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// ---------------------------------------------------------------------------
+//
+CAmrPayloadHeader::CAmrPayloadHeader() :iCmr( EAmrModeReqNone )
+    {
+    DP_AMR_ENCODE( "CAmrPayloadHeader::CAmrPayloadHeader" );        
+    }
+
+
+// ---------------------------------------------------------------------------
+// CAmrPayloadHeader::NewL
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CAmrPayloadHeader* CAmrPayloadHeader::NewL()
+    {
+    DP_AMR_ENCODE( "CAmrPayloadHeader::NewL" );
+    
+    CAmrPayloadHeader* self = new( ELeave ) CAmrPayloadHeader( );
+    
+    return self;
+    }
+
+
+// Destructor
+CAmrPayloadHeader::~CAmrPayloadHeader()
+    {
+    DP_AMR_ENCODE( "CAmrPayloadHeader::~CAmrPayloadHeader" );
+    }
+
+
+// ---------------------------------------------------------------------------
+// CAmrPayloadHeader::Encode
+// Encode the payload header fields into a given buffer at the given position.
+// ---------------------------------------------------------------------------
+//
+void CAmrPayloadHeader::Encode( TUint8* aBuffer,
+        TInt& aByteIndex, TInt& aBitIndex )
+    {
+    DP_AMR_ENCODE( "CAmrPayloadHeader::Encode" );
+        
+    TStreamEncoder encoder;
+    encoder.Initialize( aBuffer, aByteIndex, aBitIndex );
+    
+    //In bandwidth-efficient mode, the payload header simply consists of a
+    //4 bit codec mode request:
+    //  0 1 2 3
+    // +-+-+-+-+
+    // |  CMR  |
+    // +-+-+-+-+
+    encoder.Encode( iCmr, KCMRFieldBits );
+
+    // Update Byte and Bit positions
+    aByteIndex = encoder.ByteIndex( ); 
+    aBitIndex = encoder.BitIndex( );
+    }
+
+
+// ---------------------------------------------------------------------------
+// CAmrPayloadHeader::Decode
+// Decode the payload header from a given buffer at the given position.
+// ---------------------------------------------------------------------------
+//
+void CAmrPayloadHeader::Decode( const TUint8* aBuffer,
+        TInt& aByteIndex, TInt& aBitIndex )
+    {
+    DP_AMR_ENCODE( "CAmrPayloadHeader::Decode" );
+    
+    TStreamDecoder decoder;
+    decoder.Initialize( aBuffer, aByteIndex, aBitIndex );
+    iCmr = TAmrModeRequest( decoder.Decode( KCMRFieldBits ) );
+
+    // Update Byte and Bit positions
+    aByteIndex = decoder.ByteIndex( );
+    aBitIndex = decoder.BitIndex( );
+    }
+