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68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
#ifndef INCLUDE_SPECTRUMVIS_H
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#define INCLUDE_SPECTRUMVIS_H
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#include "dsp/samplesink.h"
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#include "dsp/fftengine.h"
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#include "fftwindow.h"
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#include "util/export.h"
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#include "util/message.h"
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class GLSpectrum;
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class MessageQueue;
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class SDRANGEL_API SpectrumVis : public SampleSink {
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public:
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class SDRANGEL_API MsgConfigureSpectrumVis : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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MsgConfigureSpectrumVis(int fftSize, int overlapPercent, FFTWindow::Function window) :
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Message(),
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m_fftSize(fftSize),
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m_overlapPercent(overlapPercent),
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m_window(window)
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{ }
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int getFFTSize() const { return m_fftSize; }
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int getOverlapPercent() const { return m_overlapPercent; }
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FFTWindow::Function getWindow() const { return m_window; }
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private:
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int m_fftSize;
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int m_overlapPercent;
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FFTWindow::Function m_window;
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};
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SpectrumVis(GLSpectrum* glSpectrum = NULL);
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virtual ~SpectrumVis();
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void configure(MessageQueue* msgQueue, int fftSize, int overlapPercent, FFTWindow::Function window);
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virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
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void feedTriggered(const SampleVector::const_iterator& triggerPoint, const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
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virtual void start();
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virtual void stop();
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virtual bool handleMessage(const Message& message);
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private:
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FFTEngine* m_fft;
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FFTWindow m_window;
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std::vector<Complex> m_fftBuffer;
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std::vector<Real> m_logPowerSpectrum;
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std::size_t m_fftSize;
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std::size_t m_overlapPercent;
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std::size_t m_overlapSize;
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std::size_t m_refillSize;
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std::size_t m_fftBufferFill;
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bool m_needMoreSamples;
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GLSpectrum* m_glSpectrum;
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void handleConfigure(int fftSize, int overlapPercent, FFTWindow::Function window);
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};
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#endif // INCLUDE_SPECTRUMVIS_H
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