feat: add clipper node

core/Clipper.cpp

@@ -0,0 +1,16 @@
+#include "Clipper.hpp"
+
+Clipper::Clipper(float init_clip) : clip_(init_clip) {}
+
+void Clipper::process(const float *in, float *out, uint32_t frames) {
+  for (uint32_t i = 0; i < frames; ++i) {
+    out[i] = in[i] > clip_ ? clip_ : in[i];
+  }
+}
+void Clipper::processStereo(const float *inLeft, const float *inRight,
+                            float *outLeft, float *outRight, uint32_t frames) {
+  for (uint32_t i = 0; i < frames; ++i) {
+    outLeft[i] = inLeft[i] > clip_ ? clip_ : inLeft[i];
+    outRight[i] = inRight[i] > clip_ ? clip_ : inRight[i];
+  }
+}

core/Clipper.hpp

@@ -0,0 +1,22 @@
+#ifndef CLIPPER_HPP_INCLUDED
+#define CLIPPER_HPP_INCLUDED
+
+#include <cstdint>
+
+class Clipper {
+public:
+  Clipper(float init_clip = 1.0f);
+
+  void process(const float *in, float *out, uint32_t frames);
+  void processStereo(const float *inLeft, const float *inRight, float *outLeft,
+                     float *outRight, uint32_t frames);
+
+private:
+  float clip_;
+
+public:
+  void setGain(float c) { clip_ = c; }
+  float getGain() const { return clip_; }
+};
+
+#endif // CLIPPER_HPP_INCLUDED