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Set up a server that watches pipewire and adds devices as they appear #247

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savanni merged 2 commits from gm-dash__pipewire into main 2024-08-26 14:55:28 +00:00
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5 changed files with 373 additions and 72 deletions
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Cargo.lock generated
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@ -66,6 +66,16 @@ dependencies = [
"libc",
]
[[package]]
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@ -313,7 +323,7 @@ dependencies = [
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@ -404,6 +414,27 @@ dependencies = [
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@ -443,7 +474,7 @@ version = "2.4.1"
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@ -535,6 +566,15 @@ dependencies = [
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@ -568,7 +608,7 @@ dependencies = [
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@ -596,6 +636,17 @@ dependencies = [
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@ -672,7 +723,7 @@ version = "0.1.0"
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@ -691,6 +742,15 @@ version = "0.9.6"
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@ -972,7 +1041,7 @@ checksum = "2517b0555262aeeda0d107a40ecfbbcf185921180ffb4acf316ebe0887467e26"
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@ -984,7 +1053,7 @@ checksum = "a0b0a86c5d31c93238ff4b694fa31f3acdf67440770dc314c57d90e433914397"
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@ -1775,6 +1844,12 @@ dependencies = [
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@ -1808,6 +1883,13 @@ dependencies = [
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@ -2019,9 +2101,9 @@ dependencies = [
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@ -2446,6 +2528,12 @@ dependencies = [
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@ -2688,13 +2814,14 @@ dependencies = [
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@ -2969,7 +3096,7 @@ dependencies = [
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@ -3223,6 +3350,34 @@ dependencies = [
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@ -3701,7 +3856,7 @@ dependencies = [
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@ -3869,15 +4024,6 @@ dependencies = [
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@ -4004,18 +4150,18 @@ checksum = "34b623917345a631dc9608d5194cc206b3fe6c3554cd1c75b937e55e285254af"
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@ -4024,13 +4170,14 @@ dependencies = [
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@ -4062,7 +4209,7 @@ dependencies = [
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@ -4090,6 +4237,12 @@ dependencies = [
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@ -4298,7 +4451,7 @@ dependencies = [
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@ -4379,7 +4532,7 @@ dependencies = [
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@ -4704,9 +4856,9 @@ dependencies = [
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@ -4829,14 +4981,14 @@ checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
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@ -4967,6 +5119,12 @@ version = "1.10.1"
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@ -5045,7 +5203,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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]
[[package]]
@ -5099,7 +5257,7 @@ version = "0.1.0"
dependencies = [
"authdb",
"http 1.0.0",
"serde 1.0.193",
"serde 1.0.209",
"serde_json",
"tokio",
"warp",
@ -5146,9 +5304,9 @@ dependencies = [
[[package]]
name = "warp"
version = "0.3.6"
version = "0.3.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c1e92e22e03ff1230c03a1a8ee37d2f89cd489e2e541b7550d6afad96faed169"
checksum = "4378d202ff965b011c64817db11d5829506d3404edeadb61f190d111da3f231c"
dependencies = [
"bytes",
"futures-channel",
@ -5162,13 +5320,11 @@ dependencies = [
"multer",
"percent-encoding 2.3.1",
"pin-project",
"rustls-pemfile",
"scoped-tls",
"serde 1.0.193",
"serde 1.0.209",
"serde_json",
"serde_urlencoded",
"tokio",
"tokio-stream",
"tokio-tungstenite",
"tokio-util",
"tower-service",
@ -5466,6 +5622,15 @@ dependencies = [
"windows-sys 0.48.0",
]
[[package]]
name = "yansi-term"
version = "0.1.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fe5c30ade05e61656247b2e334a031dfd0cc466fadef865bdcdea8d537951bf1"
dependencies = [
"winapi",
]
[[package]]
name = "zerocopy"
version = "0.7.31"

2
Cargo.toml
View File

@ -30,5 +30,5 @@ members = [
"sgf",
"timezone-testing",
"tree",
"visions/server", "gm-dash",
"visions/server", "gm-dash/server",
]

5
gm-dash/server/Cargo.toml
View File

@ -6,3 +6,8 @@ edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
pipewire = "0.8.0"
serde = { version = "1.0.209", features = ["alloc", "derive"] }
serde_json = "1.0.127"
tokio = { version = "1.39.3", features = ["full"] }
warp = "0.3.7"

25
gm-dash/server/src/bin/enumerate-audio-sinks.rs Normal file
View File

@ -0,0 +1,25 @@
use pipewire::{context::Context, main_loop::MainLoop};
fn main() -> Result<(), Box<dyn std::error::Error>> {
let mainloop = MainLoop::new(None)?;
let context = Context::new(&mainloop)?;
let core = context.connect(None)?;
let registry = core.get_registry()?;
let _listener = registry
.add_listener_local()
.global(|global| {
if global.props.and_then(|p| p.get("media.class")) == Some("Audio/Sink"){
println!(
"\t{:?} {:?}",
global.props.and_then(|p| p.get("node.description")),
global.props.and_then(|p| p.get("media.class"))
);
}
})
.register();
mainloop.run();
Ok(())
}

110
gm-dash/server/src/main.rs
View File

@ -1,3 +1,109 @@
fn main() {
println!("Hello, world!");
use pipewire::{context::Context, main_loop::MainLoop};
use std::{
net::{Ipv6Addr, SocketAddrV6},
sync::{Arc, RwLock},
};
use tokio::task::spawn_blocking;
use warp::{serve, Filter};
struct State_ {
device_list: Vec<String>,
}
#[derive(Clone)]
struct State {
internal: Arc<RwLock<State_>>,
}
impl State {
fn new() -> State {
let internal = State_ {
device_list: vec![],
};
State {
internal: Arc::new(RwLock::new(internal)),
}
}
fn add_audio(&self, device: String) {
let mut st = self.internal.write().unwrap();
(*st).device_list.push(device);
}
fn audio_devices(&self) -> Vec<String> {
let st = self.internal.read().unwrap();
(*st).device_list.clone()
}
}
impl Default for State {
fn default() -> State {
State::new()
}
}
async fn server_main(state: State) {
let localhost: Ipv6Addr = "::1".parse().unwrap();
let server_addr = SocketAddrV6::new(localhost, 3001, 0, 0);
let root = warp::path!().map(|| "ok".to_string());
let list_output_devices = warp::path!("output_devices").map({
let state = state.clone();
move || {
let devices = state.audio_devices();
serde_json::to_string(&devices).unwrap()
}
});
let routes = root.or(list_output_devices);
serve(routes).run(server_addr).await;
}
fn handle_add_audio_device(state: State, props: &pipewire::spa::utils::dict::DictRef)
{
if props.get("media.class") == Some("Audio/Sink") {
if let Some(device_name) = props.get("node.description") {
state.add_audio(device_name.to_owned());
}
}
}
fn pipewire_loop(state: State) -> Result<(), Box<dyn std::error::Error>> {
let mainloop = MainLoop::new(None)?;
let context = Context::new(&mainloop)?;
let core = context.connect(None)?;
let registry = core.get_registry()?;
let _listener = registry
.add_listener_local()
.global({
let state = state.clone();
move |global_data| {
if let Some(props) = global_data.props {
handle_add_audio_device(state.clone(), props);
}
}
})
.register();
mainloop.run();
Ok(())
}
fn pipewire_main(state: State) {
pipewire_loop(state).expect("pipewire should not error");
}
#[tokio::main]
async fn main() {
let state = State::default();
spawn_blocking({
let state = state.clone();
move || pipewire_main(state)
});
server_main(state.clone()).await;
}