File indexing completed on 2024-06-23 05:42:09 

0001 /*
0002  * Copyright (c) 2016 Daniel Holanda Noronha. All rights reserved.
0003  *
0004  * This work is licensed under the terms of the MIT license.
0005  * For a copy, see <https://opensource.org/licenses/MIT>.
0006  *
0007  */
0008 
0009 #ifndef FFTCALC_H
0010 #define FFTCALC_H
0011 
0012 #include <QThread>
0013 #include <QWaitCondition>
0014 #include <QMutex>
0015 #include <QVector>
0016 #include <QDebug>
0017 #include <QTimer>
0018 #include <QObject>
0019 #include "fft.h"
0020 
0021 #define SPECSIZE 512
0022 
0023 class BufferProcessor: public QObject{
0024     Q_OBJECT
0025     QVector<double> array;
0026     QVector<double> window;
0027     QVector<double> spectrum;
0028     QVector<double> logscale;
0029     QTimer *timer;
0030     bool compressed;
0031     bool running;
0032     int numberOfChunks;
0033     int interval;
0034     int pass;
0035     CArray complexFrame;
0036 
0037 public slots:
0038     void processBuffer(QVector<double> _array, int duration);
0039 signals:
0040     void calculatedSpectrum(QVector<double> spectrum);
0041     void allDone(void);
0042 protected slots:
0043     void run();
0044 public:
0045     explicit BufferProcessor(QObject *parent=0);
0046     ~BufferProcessor();
0047     void calc(QVector<double> &_array, int duration);
0048 };
0049 class FFTCalc : public QObject{
0050     Q_OBJECT
0051 private:
0052     bool isBusy;
0053     BufferProcessor processor;
0054     QThread processorThread;
0055 
0056 public:
0057     explicit FFTCalc(QObject *parent = 0);
0058     ~FFTCalc();
0059     void calc(QVector<double> &_array, int duration);
0060 public slots:
0061     void setSpectrum(QVector<double> spectrum);
0062     void freeCalc();
0063 signals:
0064     void calculatedSpectrum(QVector<double> spectrum);
0065 };
0066 
0067 #endif // FFTCALC_H