--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mm_plat/audio_visualization_api/inc/Visualization.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,199 @@
+/*
+* 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:  This is the definition of the audio visualization base class.
+*
+*
+*/
+
+
+#ifndef CVISUALIZATION_H
+#define CVISUALIZATION_H
+
+// INCLUDES
+#include <e32base.h>
+
+// FORWARD DECLARATION
+class MVisualizationObserver;
+
+// CLASS DECLARATION
+
+/**
+*  This is the base class for audio visualization.
+*
+*  @lib Visualization.lib
+*  @since 3.0
+*/
+
+class CVisualization : public CBase
+	{
+
+	public: // Constructors and destructor
+
+	    /**
+        * Factory function for creating the volume object.
+        * @since 3.0
+        * @param aObserver A visualization observer.
+        * @return pointer to CVisualization object
+        */
+		IMPORT_C static CVisualization* NewL( MVisualizationObserver& aObserver );
+
+		/**
+        *	Destructor
+        */
+		virtual ~CVisualization();
+
+    public: // New functions
+
+		/**
+        * Get the data rate.
+        * @since 3.0
+        * @return data rate in Hz.
+        */
+		IMPORT_C TUint32 DataRate() const;
+
+		/**
+        * Get the upper and lower limits of the supported data rate range
+        * @since 3.0
+        * @param aMin The lower limit of the data rate range
+        * @param aMax The upper limit of the data rate range
+        */
+		IMPORT_C void DataRateRange( TUint32& aMin, TUint32& aMax );
+
+		/**
+        * Used by application enable or disable frequency data.
+        * @since 3.0
+        * @param aIndicator Set to ETrue to enable frequency, EFalse to disable frequency data.
+        */
+		IMPORT_C void EnableFrequencyData( TBool aIndicator );
+
+		/**
+        * Used by application to enable or disable waveform data.
+        * @since 3.0
+        * @param aIndicator Set to ETrue to enable waveform data, EFalse to disable waveform data.
+        */
+		IMPORT_C void EnableWaveformData( TBool aIndicator );
+
+		/**
+        * Get frequency band count.
+        * @since 3.0
+        * @return frequency band count.
+        */
+		IMPORT_C TUint32 FreqencyBandCount( ) const;
+
+		/**
+        * Get frequency band count range.
+        * @since 3.0
+        * @param aMin Lower limit of the frequency band count range
+        * @param aMax Upper limit of the frequency band count range
+        */
+		IMPORT_C void FrequencyBandCountRange( TUint32& aMin, TUint32& aMax );
+
+		/**
+        * Determine whether frequency data is enabled.
+        * @since 3.0
+        * @return ETrue, if frequency data is enabled. EFalse, if frequency data is disabled.
+        */
+		IMPORT_C TBool IsFrequencyDataEnabled( ) const;
+
+		/**
+        * Determine whether waveform data is enabled.
+        * @since 3.0
+        * @return ETrue, if waveform data is enabled. EFalse, if waveform data is disabled.
+        */
+		IMPORT_C TBool IsWaveformDataEnabled( ) const;
+
+		/**
+        * Get the sampling rate.
+        * @since 3.0
+        * @return The sampling rate.
+        */
+		IMPORT_C TUint32 SamplingRate() const;
+
+		/**
+        * Set the data rate.
+        * @since 3.0
+        * @param aDataRate The data rate.
+        */
+		IMPORT_C void SetDataRateL( TUint32 aDataRate );
+
+		/**
+        * Sets the frequency band count. Results in a call to
+        * MVisualizationObserver::FrequencyBandCountChanged().
+        * @since 3.0
+        * @param aFrequencyBandCount The frequency band count.
+        */
+		IMPORT_C void SetFrequencyBandCountL( TUint32 aFrequencyBandCount );
+
+		/**
+        * Sets the waveform band count. Results in a call to
+        * MVisualizationObserver::WaveformDataLengthChanged().
+        * @since 3.0
+        * @param aWaveformDataLength The waveform data length in samples.
+        */
+		IMPORT_C void SetWaveformDataLengthL( TUint32 aWaveformDataLength );
+
+		/**
+        * Starts visualization. Results in a call to MVisualizationObserver::VisualizationStarted()
+        * @since 3.0
+        */
+		IMPORT_C void StartL( );
+
+		/**
+        * Stops visualization. Results in a call to MVisualizationObserver::VisualizationStopped()
+        * @since 3.0
+        */
+		IMPORT_C void StopL( );
+
+		/**
+        * Get the waveform data length.
+        * @since 3.0
+        * @return The waveform data length in samples.
+        */
+		IMPORT_C TUint32 WaveformDataLength() const;
+
+		/**
+        * Get the waveform data length range in samples.
+        * @since 3.0
+        * @param aMin The lower limit of the waveform data length range
+        * @param aMax The upper limit of the waveform data length range
+        */
+		IMPORT_C void WaveformDataLengthRange( TUint32& aMin, TUint32& aMax );
+
+
+	private:
+
+		/**
+		* Private C++ constructor for this class.
+        * @since 3.0
+        */
+		CVisualization();
+
+        /**
+		* Second Phase Costructor
+		* @since 3.0
+		* @param aObserver Visualization Observer
+		*/
+        void ConstructL( MVisualizationObserver& aObserver );
+
+		class CBody;
+	
+		/**
+		CVisualization body
+		*/
+		CBody* iBody;
+	};
+
+#endif	// of CVISUALIZATION_H
+
+// End of File