51 lines
1.1 KiB
Rust
51 lines
1.1 KiB
Rust
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extern crate alsa;
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use self::alsa::card::{Card};
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use self::alsa::mixer::{Mixer, Selem};
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pub fn get_default_alsa_card() -> Card {
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let default_card: Card = Card::new(0);
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return default_card;
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}
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pub fn get_mixer(card: Card) -> Mixer {
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let mixer = Mixer::new(&format!("hw:{}", card.get_index()),
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false).unwrap();
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for elem in mixer.iter() {
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let selem: Selem = Selem::new(elem).unwrap();
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println!("Elem: {}", selem.get_id().get_name().unwrap());
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}
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return mixer;
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}
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pub fn get_channels(mixer: &Mixer) -> alsa::mixer::Iter {
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return mixer.iter();
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}
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pub fn get_channel_by_name<'a>(mixer: &'a Mixer, name: String) -> Option<Selem<'a>> {
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for elem in mixer.iter() {
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let m_selem = Selem::new(elem);
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let m_name = m_selem.and_then(|x| x.get_id().get_name().ok());
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let retval = m_name.map_or(false, |n| {
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return n == name;
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});
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if retval {
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return Selem::new(elem);
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}
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}
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return None;
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}
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// pub fn list_channels(card: Card, hctl: HCtl) -> [str] {
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// }
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