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Interactive 3D Spectrum Analyzer Visualization for Windows Media Player

, 17 May 2009 CPOL 90.1K 4.3K 40
Interactive 3D Spectrum Analyzer for Windows Media Player using DirectX 9 and some light GPGPU.
///////////////////////////////////////////////////////////////////////////////
//  Copyright (c) 2009 Carlo McWhirter. All Rights Reserved.	
//  Copyright (c) 2009 Hyteq Systems. All Rights Reserved.	
//  
//  http://www.hyteq.com
//
//	Hyteq Systems Educational License
//
//  This file is part of WM3DSpectrum, also known as 3D Spectrum Analyzer for
//  Windows Media Player. This file, the project that this file is part of, and
//  the resulting compiled program files are intended to be used for educational
//  purposes only. Use of this file or this project for any non-educational or
//  non-observatory purpose is strictly prohibited without the express written 
//  consent of all of the copyright holders listed above.
//
//  This file may only be modified and later redistributed by one or more of the
//  copyright holders listed above. Suggestions for bug fixes, enhancements,
//  and other modifications must be sent directly to one of the copyright holders.
//  
//  This file may be modified without being redistributed by any recipient of 
//  this file provided the modifications are NOT intentionaly or unintentionaly 
//  directed toward malicious or illegal purposes, but, instead, toward educational
//  purposes only.
//
//	THIS SOFTWARE IS PROVIDED 'AS-IS', WITHOUT ANY EXPRESS OR IMPLIED
//  WARRANTY. IN NO EVENT WILL THE AUTHORS BE HELD LIABLE FOR ANY DAMAGES
//  ARISING FROM THE USE OF THIS SOFTWARE.
//
//  This notice may not be removed from this file or altered in any manner.
//
///////////////////////////////////////////////////////////////////////////////

#pragma once
#include "rendererinterface.h"


// CLinearInterpolater is used to interpolate the 1024 frequencies provided by windows
// media player into 512 frequencies.
class CSmoothInterpolator :
	public IInterpolateFreq
{
public:
	CSmoothInterpolator(void);
	~CSmoothInterpolator(void);

	// Prepare the interpolation
	virtual void PrepareInterpolation( TimedLevel* pLevel );

	// Get the amplitudes as an interpolated color value.
	virtual void GetAplitudesAtIndex( int index, float* fAudioAsColorL, float* fAudioAsColorR );

protected:
	unsigned char m_LevelCacheL[512];
	unsigned char m_LevelCacheR[512];
	char		  m_cAverage;
};

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Carlo McWhirter
Software Developer (Senior) Hyteq Systems
United States United States
I'm a Microsoft Certified Professional (MCP) in C++. I'm fluent in C/C++, C# and many other languages.

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