1 files changed, 52 insertions, 0 deletions
diff --git a/plugin/src/Caelestia/Services/beattracker.hpp b/plugin/src/Caelestia/Services/beattracker.hpp
new file mode 100644
index 0000000..ab18373
--- /dev/null
+++ b/plugin/src/Caelestia/Services/beattracker.hpp
@@ -0,0 +1,52 @@
+#pragma once
+
+#include "audiocollector.hpp"
+#include "audioprovider.hpp"
+#include <aubio/aubio.h>
+#include <qqmlintegration.h>
+
+namespace caelestia {
+
+class BeatProcessor : public AudioProcessor {
+    Q_OBJECT
+
+public:
+    explicit BeatProcessor(AudioCollector* collector, QObject* parent = nullptr);
+    ~BeatProcessor();
+
+signals:
+    void beat(smpl_t bpm);
+
+protected:
+    void setCollector(AudioCollector* collector) override;
+
+private:
+    aubio_tempo_t* m_tempo;
+    fvec_t* m_in;
+    fvec_t* m_out;
+
+    void process() override;
+};
+
+class BeatTracker : public AudioProvider {
+    Q_OBJECT
+    QML_ELEMENT
+
+    Q_PROPERTY(smpl_t bpm READ bpm NOTIFY bpmChanged)
+
+public:
+    explicit BeatTracker(QObject* parent = nullptr);
+
+    [[nodiscard]] smpl_t bpm() const;
+
+signals:
+    void bpmChanged();
+    void beat(smpl_t bpm);
+
+private:
+    smpl_t m_bpm;
+
+    void updateBpm(smpl_t bpm);
+};
+
+} // namespace caelestia