--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camcordermmfplugin/mediarecorder/Inc/CCMRAacCodecData.h	Thu Dec 17 08:51:24 2009 +0200
@@ -0,0 +1,176 @@
+/*
+* Copyright (c) 2004 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:  Header file for AMR audio codec data class
+*
+*/
+
+
+#ifndef CCMRAACCODECDATA_H
+#define CCMRAACCODECDATA_H
+
+// INCLUDES
+#include "CCMRAudioCodecData.h"
+#include "CCMRSupportedCodecs.h"
+
+
+// CONSTANTS
+// this is the max buffer size that the corresponding HW codec implementation will output, so it is not necessarily == 1 framelength
+const TInt KCMRMaxAACBufferLength = 240;
+
+// UId of the AAC CMMFCodec
+const TUid KCMRAACSWCodecUid = {0x1020382F};    //KAdvancedUidCodecPCM16ToAAC
+
+
+// CLASS DECLARATION
+
+
+/**
+*  Base class for audio codec data
+*
+*  @lib
+*  @since 2.6
+*/
+class CCMRAACCodecData : public CCMRAudioCodecData
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * C++ default constructor.
+        */
+        CCMRAACCodecData(TCMRCodecType aType);
+
+        /**
+        * Destructor.
+        */
+        virtual ~CCMRAACCodecData();
+
+    public: // functions from baseclass
+
+        /**
+        * From CCMRAudioCodecData Check if the codec is supported in this configuration
+        * @return TBool ETrue if supported
+        */
+        TBool Supported();
+
+        /**
+        * Return frame duration in microseconds
+        * @return TReal duration in microseconds
+        */
+        TReal GetFrameDurationUs() const;
+
+        /**
+        * Return preferred duration of PCM capture in microseconds, relevant only for CMMFCodecs
+        * @return TReal duration in milliseconds
+        */
+        TReal GetPCMCaptureDurationMs() const;
+
+        /**
+        * From CCMRAudioCodecData Set bitrate for the codec
+        * @param aBitRate in bps
+        * @return void
+        */
+        void SetBitRateL(TInt aBitRate);
+
+        /**
+        * From CCMRAudioCodecData Get the current bitrate
+        * @return TInt bitrate in bps
+        */
+        TInt GetBitRateL() const;
+
+        /**
+        * Set sample rate for the codec, leaves by default, but can be overridden, then leaves if not supported
+        */
+        void SetSampleRateL(TUint aSampleRate);
+
+        /**
+        * Return the supported sample rate for the codec
+        * @return TUint sample rate (Hz)
+        */
+        TUint GetSampleRate() const;
+
+        /**
+        * Set channel mode for the codec, leaves by default.
+        */
+        void SetChannelModeL(TUint aChannelMode);
+
+        /**
+        * From CCMRAudioCodecData Get the max frame length (single coded frame)
+        * @return TInt framelength in bytes
+        */
+        TInt MaxFrameLengthL() const;
+
+        /**
+        * From CCMRAudioCodecData Get the configuration parameters for the codec
+        * @param aDataSource    MMF audio input
+        * @return TDes8* configuration parameter structure
+        */
+        TDes8* GetCodecConfigParamL(MDataSource* aDataSource);
+
+        /**
+        * From CCMRAudioCodecData Reads the framelength from the header of the given buffer
+        * @param const TUint8* aBuf
+        * @return TInt frame length in bytes
+        */
+        TInt FrameLength( const TUint8* aBuf, TInt aDataLen ) const;
+
+        /**
+        * From CCMRAudioCodecData Returns the max used buffer length for this codec. Client can then e.g. allocate buffers based on it
+        * @return TInt Max frame length in bytes
+        */
+        TInt inline MaxBufferLength() const { return KCMRMaxAACBufferLength; };
+
+        /**
+        * From CCMRAudioCodecData Configures sample DevSound HW device
+        * @since 2.1
+        * @return TInt error code
+        */
+        TInt AudioHWConfigL(MDataSource* aDataSource, const TDesC8& aParams );
+
+        /**
+        * From CCMRAudioCodecData Get the decoder configuration info
+        * @return HBufC8* info structure
+        */
+        HBufC8* GetDecoderConfigInfoLC();
+
+        /**
+        * From CCMRAudioCodecData Configures sample DevSound HW device
+        * @return TUid Uid
+        */
+        inline TUid SWCodecUid() {return KCMRAACSWCodecUid;} ;
+
+        /**
+        * From CCMRAudioCodecData Preferred samplecount per inputbuffer.
+        * @return TInt samplecount.
+        */
+        TInt PreferredSampleCountPerInputBuffer();
+
+        /**
+        * Get the preferred framecount per PCM inputbuffer.
+        * @return TInt samplecount.
+        */
+        TInt PreferredFrameCountPerInputBuffer();
+
+    private:
+
+        // AAC codec interprets the input as array of TInts, not as a class like other codecs
+    	RArray<TInt> iAACConfigData;
+
+        // In AAC, the max allowed bitrate is variable, depends on sampling rate etc. Hence we need member variable instead of const
+        TInt iMaxBitRate;
+
+    };
+
+#endif      // CCMRAMRNBCODECDATA_H
+
+// End of File