X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Faudioscopes%2Faudiospectrum.h;h=b159f682993a08164e19b3907a90794d27abc396;hb=062997dba4bf4cd216f3ab855995c16b275c655c;hp=a70ab0ca3902b568d607f30ff62889ad9870a0e3;hpb=db2025fcae30800f798975dedc94c951c7b51a93;p=kdenlive

diff --git a/src/audioscopes/audiospectrum.h b/src/audioscopes/audiospectrum.h
index a70ab0ca..b159f682 100644
--- a/src/audioscopes/audiospectrum.h
+++ b/src/audioscopes/audiospectrum.h
@@ -1,35 +1,83 @@
+/***************************************************************************
+ *   Copyright (C) 2010 by Simon Andreas Eugster (simon.eu@gmail.com)      *
+ *   This file is part of kdenlive. See www.kdenlive.org.                  *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ ***************************************************************************/
+
+/**
+   Displays a spectral power distribution of audio samples.
+   The frequency distribution is calculated by means of a Fast Fourier Transformation.
+   For more information see Wikipedia:FFT and the code comments.
+*/
+
 #ifndef AUDIOSPECTRUM_H
 #define AUDIOSPECTRUM_H
 
 #include <QtCore>
+#include <QVector>
+#include <QHash>
 
 #include "abstractaudioscopewidget.h"
 #include "ui_audiospectrum_ui.h"
+#include "tools/kiss_fftr.h"
+#include "ffttools.h"
 
 class AudioSpectrum_UI;
-
 class AudioSpectrum : public AbstractAudioScopeWidget {
     Q_OBJECT
 
 public:
-    AudioSpectrum(Monitor *projMonitor, Monitor *clipMonitor, QWidget *parent = 0);
+    AudioSpectrum(QWidget *parent = 0);
+    ~AudioSpectrum();
 
     // Implemented virtual methods
     QString widgetName() const;
 
+
 protected:
     ///// Implemented methods /////
     QRect scopeRect();
     QImage renderHUD(uint accelerationFactor);
-    QImage renderScope(uint accelerationFactor, const QVector<int16_t> audioFrame, const int freq, const int num_channels, const int num_samples);
+    QImage renderAudioScope(uint accelerationFactor, const QVector<int16_t> audioFrame, const int freq, const int num_channels, const int num_samples);
     QImage renderBackground(uint accelerationFactor);
     bool isHUDDependingOnInput() const;
     bool isScopeDependingOnInput() const;
     bool isBackgroundDependingOnInput() const;
     virtual void readConfig();
+    void writeConfig();
+
+    virtual void handleMouseDrag(const QPoint movement, const RescaleDirection rescaleDirection, const Qt::KeyboardModifiers rescaleModifiers);
 
 private:
     Ui::AudioSpectrum_UI *ui;
+
+    QAction *m_aResetHz;
+
+    FFTTools m_fftTools;
+
+    /** Contains the plot only; m_scopeRect contains text and widgets as well */
+    QRect m_innerScopeRect;
+
+    /** Lower bound for the dB value to display */
+    int m_dBmin;
+    /** Upper bound (max: 0) */
+    int m_dBmax;
+
+    /** Maximum frequency (limited by the sampling rate if determined automatically).
+        Stored for the painters. */
+    uint m_freqMax;
+    /** The user has chosen a custom frequency. */
+    bool m_customFreq;
+
+
+
+private slots:
+    void slotResetMaxFreq();
+
 };
 
 #endif // AUDIOSPECTRUM_H