comparison SpectrogramProcessor.h @ 14:c11367df624d

* Renamed NoveltyCurve.* and Spectrogram.* to $(Name)Processor.*
* Aligned novelty curve with audio - when performing FIRFilter::process(params), take inputLength after group delay.
* Removed trail of Spectrogram.
* General tidying!

+//
+//  Spectrogram.h
+//  Tempogram
+//
+//  Created by Carl Bussey on 07/08/2014.
+//  Copyright (c) 2014 Carl Bussey. All rights reserved.
+//
+
+#ifndef __Tempogram__Spectrogram__
+#define __Tempogram__Spectrogram__
+#include <vector>
+#include <vamp-sdk/FFT.h>
+#include <cmath>
+
+typedef std::vector <std::vector<float> > Spectrogram;
+typedef std::vector <std::vector<float> > SpectrogramTransposed;
+
+class SpectrogramProcessor{
+    size_t m_windowLength;
+    size_t m_fftLength;
+    size_t m_hopSize;
+    size_t m_numberOfOutputBins;
+    double * m_pFftInput;
+    double * m_pFftOutputReal;
+    double * m_pFftOutputImag;
+    
+    void initialise();
+    void cleanup();
+public:
+    SpectrogramProcessor(const size_t &windowLength, const size_t &fftLength, const size_t &hopSize);
+    ~SpectrogramProcessor();
+    
+    std::vector< std::vector<float> > process(const float * const pInput, const size_t &inputLength, const float * pWindow, const bool &transposeOutput = false) const;
+    static SpectrogramTransposed transpose(const Spectrogram &spectrogram);
+};
+
+#endif /* defined(__Tempogram__Spectrogram__) */