cpal/examples/enumerate.rs

74 lines
2.7 KiB
Rust

extern crate anyhow;
extern crate cpal;
use cpal::traits::{DeviceTrait, HostTrait};
fn main() -> Result<(), anyhow::Error> {
println!("Supported hosts:\n {:?}", cpal::ALL_HOSTS);
let available_hosts = cpal::available_hosts();
println!("Available hosts:\n {:?}", available_hosts);
for host_id in available_hosts {
println!("{}", host_id.name());
let host = cpal::host_from_id(host_id)?;
let default_in = host.default_input_device().map(|e| e.name().unwrap());
let default_out = host.default_output_device().map(|e| e.name().unwrap());
println!(" Default Input Device:\n {:?}", default_in);
println!(" Default Output Device:\n {:?}", default_out);
let devices = host.devices()?;
println!(" Devices: ");
for (device_index, device) in devices.enumerate() {
println!(" {}. \"{}\"", device_index + 1, device.name()?);
// Input configs
if let Ok(fmt) = device.default_input_config() {
println!(" Default input stream config:\n {:?}", fmt);
}
let mut input_configs = match device.supported_input_configs() {
Ok(f) => f.peekable(),
Err(e) => {
println!("Error: {:?}", e);
continue;
}
};
if input_configs.peek().is_some() {
println!(" All supported input stream configs:");
for (config_index, config) in input_configs.enumerate() {
println!(
" {}.{}. {:?}",
device_index + 1,
config_index + 1,
config
);
}
}
// Output configs
if let Ok(fmt) = device.default_output_config() {
println!(" Default output stream config:\n {:?}", fmt);
}
let mut output_configs = match device.supported_output_configs() {
Ok(f) => f.peekable(),
Err(e) => {
println!("Error: {:?}", e);
continue;
}
};
if output_configs.peek().is_some() {
println!(" All supported output stream configs:");
for (config_index, config) in output_configs.enumerate() {
println!(
" {}.{}. {:?}",
device_index + 1,
config_index + 1,
config
);
}
}
}
}
Ok(())
}