--- /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 <e32std.h>
+#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