Function rodio::input_devices

Important traits for Filter<I, P>

impl<I, P> Iterator for Filter<I, P> where
    I: Iterator,
    P: FnMut(&<I as Iterator>::Item) -> bool,  type Item = <I as Iterator>::Item;

pub fn input_devices() -> Filter<Devices, fn(&Device) -> bool>

An iterator yielding all Devices currently available to the system that support one or more input stream formats.

Can be empty if the system does not support audio input.