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37 lines
749 B
C++
37 lines
749 B
C++
#pragma once
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#include "tools/music.h"
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#include "tools/beatutils.h"
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#include <memory>
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class BPMCalculator
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{
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public:
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explicit BPMCalculator();
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void start();
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void stop();
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void click(const microsec& offset);
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bool calculating() const;
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const beat_utils::BeatInfo& fetchApproximatedInfo();
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microsec fetchTimeUntilNextBeat(const microsec& offset);
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microsec getStartingOffset() const;
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void setStartingOffset(microsec offset);
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void moveStartingOffsetBy(microsec shift);
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private:
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bool _need_recalculate;
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bool _calculating;
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std::vector<microsec> _deltas;
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microsec _previous_click_offset;
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microsec _first_click_offset;
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beat_utils::BeatInfo _approximated_info;
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inline void reset();
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};
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