--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/multimediacommscontroller/mmccamrpayloadformat/src/amrpayloadformatter.cpp	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,150 @@
+/*
+* Copyright (c) 2002-2006 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 "amrpayloadformatter.h"
+#include "amrcommonutil.h"
+
+// CONSTANTS
+
+// ============================= LOCAL FUNCTIONS ===============================
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+ 
+// -----------------------------------------------------------------------------
+// CAmrPayloadFormatter::CAmrPayloadFormatter
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CAmrPayloadFormatter::CAmrPayloadFormatter( TBool aIsNb )
+  : iIsNb( aIsNb ), 
+    iChannelCount( 1 ),
+    iFrameBlockCount( 1 ),
+    iFrameCount( iChannelCount * iFrameBlockCount ),
+    iModeRequest( EAmrModeReqNone ),
+    iPayloadPtr( 0, 0, 0 )
+    {}
+    
+// Destructor
+CAmrPayloadFormatter::~CAmrPayloadFormatter( )
+    {
+    iPayload = NULL;
+    iFrameDatas.ResetAndDestroy();
+    }
+    
+// -----------------------------------------------------------------------------
+// CAmrPayloadFormatter::Initialize
+// Initialize formatter. MUST be done always when starting decoding/encoding
+// possibly after pause/stop. Redundant frames collected so far are destroyed as
+// well as frames received for redundancy detection.
+// -----------------------------------------------------------------------------
+//
+void CAmrPayloadFormatter::Initialize()
+    {
+    iFrameDatas.ResetAndDestroy();
+    DoInitialize();
+    }
+    
+// -----------------------------------------------------------------------------
+// CAmrPayloadFormatter::SetPayloadBuffer
+// Set payload buffer.
+// -----------------------------------------------------------------------------
+//
+void CAmrPayloadFormatter::SetPayloadBuffer( TDes8& aBuffer )
+    {
+    iPayload = const_cast<TUint8*>( aBuffer.Ptr( ) );
+    iPayloadSize = aBuffer.Length( );
+    iPayloadPtr.Set( iPayload, aBuffer.Length( ), aBuffer.MaxLength( ) );
+    }
+
+
+// -----------------------------------------------------------------------------
+// CAmrPayloadFormatter::SetChannelCount
+// Set number of audio channels.
+// -----------------------------------------------------------------------------
+//
+TInt CAmrPayloadFormatter::SetChannelCount( TInt aChannelCount )
+    {
+    if ( KMaxChannelCount < aChannelCount || aChannelCount < 1 )
+        {
+        return KErrArgument;
+        }
+
+    iChannelCount = aChannelCount;
+    iFrameCount = iChannelCount * iFrameBlockCount;
+    return KErrNone;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CAmrPayloadFormatter::SetFramesBlockCount
+// Set number of AMR frame blocks included in one RTP packet.
+// -----------------------------------------------------------------------------
+//
+TInt CAmrPayloadFormatter::SetFrameBlockCount( TInt aFrameblockCount )
+    {
+    if ( KMaxFrameBlocksPerPacket < aFrameblockCount || aFrameblockCount < 1 )
+        {
+        return KErrArgument;
+        }
+
+    iFrameBlockCount = aFrameblockCount;
+    iFrameCount = iChannelCount * iFrameBlockCount;
+    return KErrNone;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CAmrPayloadFormatter::SpeechBitCount
+// Get number of speech bits in an AMR frame.
+// -----------------------------------------------------------------------------
+//
+TInt CAmrPayloadFormatter::SpeechBitCount( enum TAmrFrameType aFrameType ) const
+    {
+    if ( iIsNb )
+    	{
+	    if ( aFrameType > EAmrFrameSid)
+	        {
+	        return 0;
+	        }
+		else        
+	        {
+		    return KAmrNbTotalSpeechBits[TInt( aFrameType )];
+	        }
+    	}
+    else
+    	{
+	    if ( aFrameType > EAmrWbFrameSid)
+	        {
+	        return 0;
+	        }
+		else        
+	        {
+		    return KAmrWbTotalSpeechBits[TInt( aFrameType )];
+	        }
+    	}
+    }
+
+// ========================== OTHER EXPORTED FUNCTIONS =========================
+
+//  End of File