Struct RingSource 

pub struct RingSource<const N: usize> { /* private fields */ }

A fixed-capacity ring buffer residual source for embedded/bare-metal.

Accepts streamed residual norms one at a time and exposes the most recent N observations as a contiguous slice. All storage is stack-allocated.

Implementations

impl<const N: usize> RingSource<N>

pub const fn new(snr_db: f32) -> Self

Create a new ring source.

pub fn push(&mut self, norm: f32)

Push a new residual norm into the ring buffer.

pub fn set_snr_db(&mut self, snr_db: f32)

Update the SNR estimate.

Trait Implementations

impl<const N: usize> ResidualSource for RingSource<N>

fn residual_norms(&self) -> &[f32]

Borrow the current residual norm buffer as an immutable slice.

fn snr_estimate_db(&self) -> f32

Current SNR estimate in dB. Return f32::NAN if unknown.

fn sample_count(&self) -> usize

Number of valid samples in the current buffer.