1 files changed, 28 insertions, 0 deletions
diff --git a/tuner.h b/tuner.h
new file mode 100644
index 0000000..df17c0f
--- /dev/null
+++ b/tuner.h
@@ -0,0 +1,28 @@
+#pragma once
+
+#include <complex>
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace RIT {
+
+struct Pitch {
+	double f{}; // in Hz
+	double deviation{}; // 0.0 == perfect, +/-1.0: at next note
+	std::string name; // "" for none, "A", "A#", ... for notes
+};
+
+class Tuner {
+public:
+	Tuner(int size, int f_sample);
+	~Tuner();
+
+	Pitch operator() (const std::vector<std::complex<double>> &v);
+
+private:
+	struct Impl;
+	std::unique_ptr<Impl> mImpl;
+}; // class Tuner
+
+} // namespace RIT