NilsBriggenandClaude Opus 5.5
3571124685
Control app and device volumes on Linux with a MIDI controller (Rust + egui). Renamed from the working title "midimixer"; settings in ~/.config/midimixer are copied over on first start. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
49 lines
1.9 KiB
Rust
49 lines
1.9 KiB
Rust
//! A pretend Korg nanoKONTROL2 on virtual ALSA ports (client "FakeNano",
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//! so it never shadows a real device), for testing without hardware. Reads commands from stdin:
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//! f <strip 1-8> <0-127> move a fader
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//! k <knob 1-8> <0-127> turn a knob
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//! b <cc> press and release a button (e.g. 48 = M1)
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//! and prints every message the app sends back (LED feedback).
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use std::io::BufRead;
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use midir::os::unix::{VirtualInput, VirtualOutput};
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use midir::{MidiInput, MidiOutput};
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fn main() {
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let mut out =
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MidiOutput::new("FakeNano").unwrap().create_virtual("nanoKONTROL2 MIDI 1").expect("create virtual output");
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let _in = MidiInput::new("FakeNano")
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.unwrap()
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.create_virtual(
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"nanoKONTROL2 LEDs",
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|_, msg, _| {
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let hex: Vec<String> = msg.iter().map(|b| format!("{b:02X}")).collect();
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println!("LED <- {}", hex.join(" "));
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},
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(),
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)
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.expect("create virtual input");
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println!("fake nanoKONTROL2 ready");
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for line in std::io::stdin().lock().lines() {
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let line = line.unwrap();
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let parts: Vec<&str> = line.split_whitespace().collect();
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match parts.as_slice() {
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["f", n, v] => {
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let _ = out.send(&[0xB0, n.parse::<u8>().unwrap() - 1, v.parse().unwrap()]);
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}
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["k", n, v] => {
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let _ = out.send(&[0xB0, 15 + n.parse::<u8>().unwrap(), v.parse().unwrap()]);
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}
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["b", cc] => {
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let cc: u8 = cc.parse().unwrap();
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let _ = out.send(&[0xB0, cc, 127]);
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std::thread::sleep(std::time::Duration::from_millis(30));
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let _ = out.send(&[0xB0, cc, 0]);
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}
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["sleep", ms] => std::thread::sleep(std::time::Duration::from_millis(ms.parse().unwrap())),
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_ => eprintln!("?"),
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}
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}
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}
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