shithub: aubio

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src/musicutils.h: add fvec_clamp, basic limiter

--- a/src/mathutils.c

+++ b/src/mathutils.c

@@ -297,6 +297,17 @@

   in->data[in->length - 1] = new_elem;

 }

+void fvec_clamp(fvec_t *in, smpl_t absmax) {

+  uint_t i;

+  for (i = 0; i < in->length; i++) {

+    if (in->data[i] > 0 && in->data[i] > ABS(absmax)) {

+      in->data[i] = absmax;

+    } else if (in->data[i] < 0 && in->data[i] < -ABS(absmax)) {

+      in->data[i] = -absmax;

+    }

+  }

+}

+

 smpl_t

 aubio_level_lin (const fvec_t * f)

 {

--- a/src/musicutils.h

+++ b/src/musicutils.h

@@ -156,6 +156,14 @@

 */

 smpl_t aubio_level_detection (const fvec_t * v, smpl_t threshold);

+/** clamp the values of a vector within the range [-abs(max), abs(max)]

+

+  \param in vector to clamp

+  \param max maximum value over which input vector elements should be clamped

+

+*/

+void fvec_clamp(fvec_t *in, smpl_t absmax);

+

 #ifdef __cplusplus

 }

 #endif