Struct futuresdr::blocks::ApplyNM

pub struct ApplyNM<F, A, B, const N: usize, const M: usize>where
    F: FnMut(&[A], &mut [B]) + Send + 'static,
    A: Send + 'static,
    B: Send + 'static,{ /* private fields */ }

Apply a function to each N input samples, producing M output samples.

Applies a function on N samples in the input stream, and creates M samples in the output stream. Handy for interleaved samples for example. See examples/audio/play_stereo.rs

Inputs

in: Input

Outputs

out: Output after function applied

Usage

use futuresdr::blocks::ApplyNM;
use futuresdr::runtime::Flowgraph;
use num_complex::Complex;

let mut fg = Flowgraph::new();

// Convert mono stream to stereo interleaved stream
let mono_to_stereo = fg.add_block(ApplyNM::<_, _, _, 1, 2>::new(move |v: &[f32], d: &mut [f32]| {
    d[0] =  v[0] * 0.5; // gain left
    d[1] =  v[0] * 0.9; // gain right
}));
// Note that the closure can also hold state
// Additionally, the closure can change the type of the sample

Implementations

impl<F, A, B, const N: usize, const M: usize> ApplyNM<F, A, B, N, M>where F: FnMut(&[A], &mut [B]) + Send + 'static, A: Send + 'static, B: Send + 'static,

pub fn new(f: F) -> Block

Create ApplyNM block