ring buffer init

src/fir.rs

@@ -0,0 +1,32 @@
+// Finite Impulse response + Decimation
+use num_complex::Complex32;
+use crate::utils::ring_buffer::RingBuffer;
+
+pub struct Fir {
+    // Filter coefs
+    pub taps: Vec<f32>,
+
+    // Ring Buffer of samples
+    pub history: RingBuffer<Complex32>,
+
+    decimation_factor: usize,
+
+    // When to keep a sample
+    decimator_counter: usize,
+}
+
+impl Fir {
+    fn new(decimation_factor: usize) -> Self {
+        Self {
+            // TODO: precalulate filter coefs + ring buffer
+            taps: vec![],
+            history: 
+            decimation_factor,
+            decimator_counter: 0,
+        }
+    }
+
+    fn () {
+        
+    }
+}