Расширить общие API графиков и GAS обмена

c/set-protocol/include/set_spectrum.h

@@ -28,6 +28,15 @@ PCAN_ABI_API int set_spectrum_analyze(const double *times, const double *values,
     size_t max_size, int window, int filter, double low_hz, double high_hz, int remove_mean,
     double *amplitudes, size_t capacity, double *meta);
 
+/** Find the strongest non-DC local maximum above both the absolute floor and
+ * relative_threshold * median(non-DC amplitudes). The caller supplies scratch
+ * storage of at least count-1 doubles. peak = {frequency_hz, amplitude}.
+ * Returns 1 when found, 0 when no narrow-band peak exists, -1 on invalid input.
+ */
+PCAN_ABI_API int set_spectrum_dominant_peak(const double *amplitudes, size_t count,
+    double bin_hz, double relative_threshold, double absolute_floor,
+    double *scratch, size_t scratch_capacity, double *peak, size_t peak_capacity);
+
 #ifdef __cplusplus
 }
 #endif