shady-audio is the audio backend for the other shady tools. Its interface let's you easily fetch the frequency presence of the given audio source by selecting an audio source which implemented the Fetcher trait.

Example

use std::num::NonZero;
use shady_audio::{SampleProcessor, BarProcessor, BarProcessorConfig, fetcher::DummyFetcher};

let mut sample_processor = SampleProcessor::new(DummyFetcher::new());

let mut bar_processor = BarProcessor::new(
    &sample_processor,
    BarProcessorConfig {
        amount_bars: NonZero::new(20).unwrap(),
        ..Default::default()
    }
);
let mut bar_processor2 = BarProcessor::new(
    &sample_processor,
    BarProcessorConfig {
        amount_bars: NonZero::new(10).unwrap(),
        ..Default::default()
    }
);

loop {
    // the sample processor needs to compute the new samples only once
    // for both bar processors (to reduce computation)
    sample_processor.process_next_samples();

    let bars = bar_processor.process_bars(&sample_processor);
    let bars2 = bar_processor2.process_bars(&sample_processor);

    assert_eq!(bars.len(), 20);
    assert_eq!(bars2.len(), 10);

    break;
}