imp module

Cargo.toml

@@ -4,22 +4,22 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-dioxus = { version = "0.5.6", features = ["web"] }
-dioxus-web = "0.5.6"
+dioxus = { version = "0.5.6" }
+dioxus-web = { version="0.5.6", optional = true }
 manganis = "0.2.2"
 once_cell = "1.19.0"
 asynchronous-codec = "0.6.2"
 futures = "0.3.30"
 merge-io = "0.3.0"
 mumble-protocol = { version = "0.5.0", package = "mumble-protocol-2x", default-features = false, features = ["asynchronous-codec"]}
-serde-wasm-bindgen = "0.6.5"
 serde_json = "1.0.117"
 tokio-util = { version = "0.7.11", features = ["codec"]}
-wasm-bindgen = "0.2.92"
-wasm-bindgen-futures = "0.4.42"
-wasm-streams = "0.4.0"
-js-sys = "0.3.70"
-web-sys = { version = "0.3.70", features = ["WebTransport", "console", "WebTransportOptions", "WebTransportBidirectionalStream", "WebTransportSendStream", "WebTransportReceiveStream", "Navigator", "MediaDevices", "AudioDecoder", "AudioDecoderInit", "AudioData", "AudioEncoderConfig", "AudioDecoderConfig", "EncodedAudioChunk", "EncodedAudioChunkInit", "EncodedAudioChunkType", "CodecState", "MediaStreamTrackGenerator", "MediaStreamTrackGeneratorInit", "AudioContext", "AudioContextOptions", "MediaStream", "GainNode", "MediaStreamAudioSourceNode", "BaseAudioContext", "AudioDestinationNode", "AudioWorkletNode", "AudioWorklet", "AudioWorkletProcessor", "MediaStreamConstraints", "WorkletOptions", "AudioEncoder", "AudioEncoderInit", "AudioDataInit", "HtmlAnchorElement", "Url", "Blob", "AudioDataCopyToOptions", "AudioSampleFormat"] }
+wasm-bindgen = { version = "0.2.92", optional = true }
+wasm-bindgen-futures = { version = "0.4.42", optional = true }
+wasm-streams = { version = "0.4.0", optional = true }
+serde-wasm-bindgen = { version = "0.6.5", optional = true }
+js-sys = { version = "0.3.70", optional = true }
+web-sys = { version = "0.3.70", features = ["WebTransport", "console", "WebTransportOptions", "WebTransportBidirectionalStream", "WebTransportSendStream", "WebTransportReceiveStream", "Navigator", "MediaDevices", "AudioDecoder", "AudioDecoderInit", "AudioData", "AudioEncoderConfig", "AudioDecoderConfig", "EncodedAudioChunk", "EncodedAudioChunkInit", "EncodedAudioChunkType", "CodecState", "MediaStreamTrackGenerator", "MediaStreamTrackGeneratorInit", "AudioContext", "AudioContextOptions", "MediaStream", "GainNode", "MediaStreamAudioSourceNode", "BaseAudioContext", "AudioDestinationNode", "AudioWorkletNode", "AudioWorklet", "AudioWorkletProcessor", "MediaStreamConstraints", "WorkletOptions", "AudioEncoder", "AudioEncoderInit", "AudioDataInit", "HtmlAnchorElement", "Url", "Blob", "AudioDataCopyToOptions", "AudioSampleFormat"], optional = true }
 anyhow = "1.0.86"
 byteorder = "1.5.0"
 ogg = "0.9.1"
@@ -29,3 +29,8 @@ markdown = "0.3.0"
 gloo-timers = { version = "0.3.0", features = ["futures"] }
 futures-channel = "0.3.30"
 sir = { version = "0.5.0", features = ["dioxus"] }
+
+[features]
+default = ["web"]
+web = ["dioxus/web", "dioxus-web", "wasm-bindgen", "wasm-bindgen-futures", "wasm-streams", "serde-wasm-bindgen", "js-sys", "web-sys"]
+desktop = ["dioxus/desktop"]

src/imp/desktop.rs

@@ -0,0 +1,6 @@
+pub async fn network_connect(
+    address: String,
+    username: String,
+    event_rx: &mut UnboundedReceiver<Command>,
+) -> Result<(), JsValue> {
+}

src/imp/web.rs

@@ -0,0 +1,488 @@
+use crate::app::ChannelId;
+use crate::app::Chat;
+use crate::app::Command;
+use crate::app::ConnectionState;
+use crate::app::STATE;
+use crate::bail;
+use dioxus::prelude::*;
+use futures::select;
+use futures::FutureExt;
+use futures::SinkExt;
+use futures::StreamExt;
+use futures_channel::mpsc::UnboundedSender;
+use gloo_timers::future::TimeoutFuture;
+use manganis::{file, mg};
+use markdown;
+use mumble_protocol::control::ControlPacket;
+use mumble_protocol::control::{msgs, ClientControlCodec};
+use mumble_protocol::voice::VoicePacket;
+use mumble_protocol::voice::VoicePacketPayload;
+use std::collections::hash_map::Entry;
+use std::collections::HashMap;
+use std::fmt;
+use wasm_bindgen::prelude::*;
+use wasm_bindgen_futures::spawn_local as spawn;
+use wasm_bindgen_futures::{future_to_promise, JsFuture};
+use web_sys::console;
+use web_sys::js_sys::Promise;
+use web_sys::js_sys::Reflect;
+use web_sys::js_sys::Uint8Array;
+use web_sys::window;
+use web_sys::AudioContextOptions;
+use web_sys::AudioData;
+use web_sys::AudioDecoder;
+use web_sys::AudioDecoderConfig;
+use web_sys::AudioDecoderInit;
+use web_sys::AudioEncoder;
+use web_sys::AudioEncoderConfig;
+use web_sys::AudioEncoderInit;
+use web_sys::AudioWorkletNode;
+use web_sys::EncodedAudioChunk;
+use web_sys::EncodedAudioChunkInit;
+use web_sys::EncodedAudioChunkType;
+use web_sys::MediaStream;
+use web_sys::MediaStreamConstraints;
+use web_sys::MediaStreamTrackGenerator;
+use web_sys::MediaStreamTrackGeneratorInit;
+use web_sys::MessageEvent;
+use web_sys::WebTransport;
+use web_sys::WebTransportBidirectionalStream;
+use web_sys::WebTransportOptions;
+use web_sys::WorkletOptions;
+
+pub use web_sys::AudioContext;
+
+pub struct AudioPlayer(AudioDecoder);
+
+impl AudioPlayer {
+    pub fn play_opus(&mut self, payload: &[u8]) {
+        let js_audio_payload = Uint8Array::from(payload);
+        let _ = self.0.decode(
+            &EncodedAudioChunk::new(&EncodedAudioChunkInit::new(
+                &js_audio_payload.into(),
+                0.0,
+                EncodedAudioChunkType::Key,
+            ))
+            .unwrap(),
+        );
+    }
+}
+
+pub struct Error(JsValue);
+
+impl From<anyhow::Error> for Error {
+    fn from(value: anyhow::Error) -> Self {
+        Error(JsError::new(&value.to_string()).into())
+    }
+}
+
+impl From<JsValue> for Error {
+    fn from(value: JsValue) -> Self {
+        Error(value)
+    }
+}
+
+impl From<JsError> for Error {
+    fn from(value: JsError) -> Self {
+        Error(JsError::from(value).into())
+    }
+}
+
+impl Error {
+    pub fn new(text: String) -> Self {
+        wasm_bindgen::JsError::new(&text).into()
+    }
+
+    pub fn log(&self) {
+        console::error_1(&self.0);
+    }
+}
+
+impl std::error::Error for Error {}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let text: String = js_sys::Object::from(self.0.clone()).to_string().into();
+        f.write_str(&text)
+    }
+}
+
+impl fmt::Debug for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let text: String = js_sys::Object::from(self.0.clone()).to_string().into();
+        f.write_str(&text)
+    }
+}
+
+// Borrowed from
+// https://github.com/security-union/videocall-rs/blob/main/videocall-client/src/decode/config.rs#L6
+fn configure_audio_context() -> AudioContext {
+    let mut audio_context_options = AudioContextOptions::new();
+    audio_context_options.sample_rate(48000 as f32);
+    let audio_context = AudioContext::new_with_context_options(&audio_context_options).unwrap();
+    audio_context
+}
+
+trait PromiseExt {
+    fn into_future(self) -> JsFuture;
+}
+
+impl PromiseExt for Promise {
+    fn into_future(self) -> JsFuture {
+        self.into()
+    }
+}
+
+async fn create_encoder_worklet(
+    audio_context: &AudioContext,
+    packets: UnboundedSender<ControlPacket<mumble_protocol::Serverbound>>,
+) -> Result<AudioWorkletNode, Error> {
+    let stream = window()
+        .unwrap()
+        .navigator()
+        .media_devices()?
+        .get_user_media_with_constraints(MediaStreamConstraints::new().audio(&JsValue::TRUE))?
+        .into_future()
+        .await?
+        .dyn_into()
+        .map_err(|e| JsError::new(&format!("not a stream: {e:?}")))?;
+
+    let options = WorkletOptions::new();
+    Reflect::set(
+        &options,
+        &"processorOptions".into(),
+        &wasm_bindgen::module(),
+    )?;
+
+    let module = "rust_mic_worklet.js";
+    console::log_1(&format!("Loading mic worklet from {module:?}").into());
+    audio_context
+        .audio_worklet()?
+        .add_module_with_options(module, &options)?
+        .into_future()
+        .await?;
+
+    let source = audio_context.create_media_stream_source(&stream)?;
+    let worklet_node = AudioWorkletNode::new(audio_context, "rust_mic_worklet")?;
+
+    let error: Closure<dyn FnMut(JsValue)> = Closure::new(|e| console::error_1(&e));
+
+    let mut download_buffer = std::cell::RefCell::new(Vec::new());
+
+    // This knows what MediaStreamTrackGenerator to use as it closes around it
+    let mut sequence_num = 0;
+    let output: Closure<dyn FnMut(EncodedAudioChunk)> =
+        Closure::new(move |audio_data: EncodedAudioChunk| {
+            let mut array = vec![0u8; audio_data.byte_length() as usize];
+            audio_data.copy_to_with_u8_array(&mut array);
+
+            download_buffer.borrow_mut().push(array.clone());
+            if download_buffer.borrow().len() > 200 {
+                //download_data(download_buffer.borrow().to_vec(), "download_buffer.opus");
+                //download_data(
+                //    ass::encode(download_buffer.borrow().to_vec(), 960, 0),
+                //    "download_buffer.opus",
+                //);
+                download_buffer.borrow_mut().clear();
+            }
+
+            let _ =
+                packets.unbounded_send(ControlPacket::UDPTunnel(Box::new(VoicePacket::Audio {
+                    _dst: std::marker::PhantomData,
+                    target: 0,
+                    session_id: (),
+                    seq_num: sequence_num,
+                    payload: VoicePacketPayload::Opus(array.into(), false),
+                    position_info: None,
+                })));
+            sequence_num = sequence_num.wrapping_add(2);
+        });
+
+    let audio_encoder = AudioEncoder::new(&AudioEncoderInit::new(
+        error.as_ref().unchecked_ref(),
+        output.as_ref().unchecked_ref(),
+    ))
+    .unwrap();
+
+    // This is required to prevent these from being deallocated
+    error.forget();
+    output.forget();
+    let encoder_config = AudioEncoderConfig::new("opus");
+    encoder_config.set_number_of_channels(1);
+    encoder_config.set_sample_rate(48000);
+    encoder_config.set_bitrate(72_000.0);
+
+    audio_encoder.configure(&encoder_config);
+    console::log_1(&"Created Audio Encoder".into());
+
+    let mut download_buffer = std::cell::RefCell::new(Vec::new());
+
+    let onmessage: Closure<dyn FnMut(MessageEvent)> = Closure::new(move |event: MessageEvent| {
+        match AudioData::new(event.data().unchecked_ref()) {
+            Ok(data) => {
+                let x = web_sys::AudioDataCopyToOptions::new(0);
+                x.set_format(web_sys::AudioSampleFormat::F32);
+                let mut sub_buffer = vec![0; data.allocation_size(&x).unwrap() as usize];
+                data.copy_to_with_u8_array(&mut sub_buffer, &x);
+                download_buffer.borrow_mut().append(&mut sub_buffer);
+                if download_buffer.borrow().len() > 48000 * 10 * 4 {
+                    //pub fn download_data(data: Vec<u8>, filename: &str) -> Result<(), JsValue> {
+                    //download_data(download_buffer.borrow().to_vec(), "download_buffer.pcm32");
+                    download_buffer.borrow_mut().clear();
+                }
+
+                audio_encoder.encode(&data);
+            }
+            Err(err) => {
+                console::error_1(&err);
+                console::debug_1(&event);
+            }
+        }
+    });
+    Reflect::set(
+        &Reflect::get(&worklet_node, &"port".into())?,
+        &"onmessage".into(),
+        onmessage.as_ref(),
+    )?;
+    onmessage.forget();
+
+    source.connect_with_audio_node(&worklet_node)?;
+    worklet_node.connect_with_audio_node(&audio_context.destination())?;
+
+    Ok(worklet_node)
+}
+
+pub fn create_player(audio_context: &AudioContext) -> Result<AudioPlayer, Error> {
+    let audio_stream_generator =
+        MediaStreamTrackGenerator::new(&MediaStreamTrackGeneratorInit::new("audio"))?;
+
+    // Create MediaStream from MediaStreamTrackGenerator
+    let js_tracks = web_sys::js_sys::Array::new();
+    js_tracks.push(&audio_stream_generator);
+    let media_stream = MediaStream::new_with_tracks(&js_tracks)?;
+
+    // Create MediaStreamAudioSourceNode
+    let audio_source = audio_context.create_media_stream_source(&media_stream)?;
+    // Connect output of audio_source to audio_context (browser audio)
+    audio_source.connect_with_audio_node(&audio_context.destination())?;
+
+    // Create callback functions for AudioDecoder
+    let error = Closure::wrap(Box::new(move |e: JsValue| {
+        console::error_1(&e);
+    }) as Box<dyn FnMut(JsValue)>);
+
+    // This knows what MediaStreamTrackGenerator to use as it closes around it
+    let output = Closure::wrap(Box::new(move |audio_data: AudioData| {
+        let writable = audio_stream_generator.writable();
+        if writable.locked() {
+            return;
+        }
+        if let Err(e) = writable.get_writer().map(|writer| {
+            spawn(async move {
+                if let Err(e) = JsFuture::from(writer.ready()).await {
+                    console::error_1(&format!("write chunk ready error {:?}", e).into());
+                }
+                if let Err(e) = JsFuture::from(writer.write_with_chunk(&audio_data)).await {
+                    console::error_1(&format!("write chunk error {:?}", e).into());
+                };
+                writer.release_lock();
+            });
+        }) {
+            console::error_1(&e);
+        }
+    }) as Box<dyn FnMut(AudioData)>);
+
+    let audio_decoder = AudioDecoder::new(&AudioDecoderInit::new(
+        error.as_ref().unchecked_ref(),
+        output.as_ref().unchecked_ref(),
+    ))?;
+
+    audio_decoder.configure(&AudioDecoderConfig::new("opus", 1, 48000));
+    console::log_1(&"Created Audio Decoder".into());
+
+    // This is required to prevent these from being deallocated
+    error.forget();
+    output.forget();
+
+    Ok(AudioPlayer(audio_decoder))
+}
+
+pub async fn network_connect(
+    address: String,
+    username: String,
+    event_rx: &mut UnboundedReceiver<Command>,
+) -> Result<(), Error> {
+    *STATE.server.write() = Default::default();
+    *STATE.status.write() = ConnectionState::Connecting;
+
+    console::log_1(&"Rust via WASM!".into());
+
+    let Ok(server_hash): Result<Vec<u8>, _> = include_str!("../../server_hash.txt")
+        .trim()
+        .trim_matches(&['[', ']'])
+        .split(',')
+        .map(|x| x.trim().parse())
+        .collect()
+    else {
+        bail!("could not parse server hash");
+    };
+    let hash = web_sys::js_sys::Uint8Array::from(server_hash.as_slice());
+
+    let object = web_sys::js_sys::Object::new();
+
+    Reflect::set(
+        &object,
+        &JsValue::from_str("algorithm"),
+        &JsValue::from_str("sha-256"),
+    )?;
+
+    web_sys::js_sys::Reflect::set(&object, &"value".into(), &hash)?;
+
+    let array = web_sys::js_sys::Array::new();
+    array.push(&object);
+
+    console::log_1(&object.clone().into());
+    console::log_1(&"Created option object!".into());
+
+    let mut options = WebTransportOptions::new();
+    options.server_certificate_hashes(&array);
+
+    console::log_1(&"Created WebTransportOptions!".into());
+
+    let transport = WebTransport::new_with_options(&address, &options)?;
+    console::log_1(&"Created WebTransport connection object.".into());
+    console::log_1(&transport.clone().into());
+
+    if let Err(e) = wasm_bindgen_futures::JsFuture::from(transport.ready()).await {
+        bail!("could not connect to transport: {e:?}");
+    }
+
+    console::log_1(&"Transport is ready.".into());
+
+    let stream: WebTransportBidirectionalStream =
+        wasm_bindgen_futures::JsFuture::from(transport.create_bidirectional_stream())
+            .await?
+            .into();
+
+    let wasm_stream_readable = wasm_streams::ReadableStream::from_raw(stream.readable().into());
+    let wasm_stream_writable = wasm_streams::WritableStream::from_raw(stream.writable().into());
+
+    let read_codec = ClientControlCodec::new();
+    let write_codec = ClientControlCodec::new();
+
+    let mut reader =
+        asynchronous_codec::FramedRead::new(wasm_stream_readable.into_async_read(), read_codec);
+    let mut writer =
+        asynchronous_codec::FramedWrite::new(wasm_stream_writable.into_async_write(), write_codec);
+
+    let (mut send_chan, mut writer_recv_chan) = futures_channel::mpsc::unbounded();
+
+    // Spawn worker to send packets.
+    spawn(async move {
+        while let Some(msg) = writer_recv_chan.next().await {
+            if !matches!(msg, ControlPacket::Ping(_) | ControlPacket::UDPTunnel(_)) {
+                console::log_1(&format!("sending {:#?}", msg).into());
+            }
+            if let Err(e) = writer.send(msg).await {
+                console::error_1(&e.to_string().into());
+                break;
+            }
+        }
+    });
+
+    // Get version packet
+    let version = match reader.next().await {
+        Some(Ok(v)) => v,
+        Some(Err(err)) => bail!("bad version packet: {err:?}"),
+        None => bail!("no version was recieved"),
+    };
+    console::log_1(&"Got version packet".into());
+    console::log_1(&format!("{:#?}", version).into());
+
+    // Send version packet
+    let mut msg = msgs::Version::new();
+    msg.set_version(0x000010204);
+    msg.set_release(format!("{} {}", "mumbleweb2", "6.9.0"));
+    //msg.set_os("Chrome".to_string());
+    send_chan.send(msg.into()).await.unwrap();
+
+    // Send authenticate packet
+    let mut msg = msgs::Authenticate::new();
+    msg.set_username(username);
+    msg.set_opus(true);
+    send_chan.send(msg.into()).await.unwrap();
+
+    // Spawn worker to send pings
+    {
+        let mut send_chan = send_chan.clone();
+        spawn(async move {
+            loop {
+                if let Err(e) = send_chan.send(msgs::Ping::new().into()).await {
+                    console::log_1(&"could not ping".into());
+                    console::log_1(&e.to_string().into());
+                    break;
+                }
+
+                TimeoutFuture::new(3000).await;
+            }
+        });
+    }
+
+    // Create MediaStreams to playback decoded audio
+    // The audio context is used to reproduce audio.
+    let audio_context = configure_audio_context();
+
+    let audio_context_worklet = audio_context.clone();
+    let packet_sender_worklet = send_chan.clone();
+    spawn(async move {
+        match create_encoder_worklet(&audio_context_worklet, packet_sender_worklet).await {
+            Ok(node) => console::log_2(&"Created audio worklet:".into(), &node),
+            Err(err) => err.log(),
+        }
+    });
+
+    // Create map of session_id -> AudioDecoder
+    let mut decoder_map = HashMap::new();
+
+    let mut reader_future = reader.next().fuse();
+    let mut command_future = event_rx.next();
+    loop {
+        select! {
+            packet = reader_future => {
+                reader_future = reader.next().fuse();
+                match packet {
+                    Some(Ok(msg)) => {
+                        if !matches!(msg, ControlPacket::UDPTunnel(_) | ControlPacket::Ping(_)) {
+                            console::log_1(&format!("receiving {:#?}", msg).into());
+                        }
+                        let res = super::accept_packet(msg, &audio_context, &mut decoder_map);
+                        if let Err(err) = res {
+                            err.log();
+                        }
+                    },
+                    Some(Err(err)) => console::error_1(&err.to_string().into()),
+                    None => break,
+                }
+            }
+            command = command_future => {
+                command_future = event_rx.next();
+                if let Some(command) = &command {
+                    console::log_1(&format!("commanding {:#?}", command).into());
+                }
+                match command {
+                    Some(Command::Disconnect) => break,
+                    Some(command) => {
+                        let res = super::accept_command(command, &mut send_chan);
+                        if let Err(err) = res {
+                            err.log();
+                        }
+                    }
+                    None => continue,
+                }
+            }
+        }
+    }
+    let _ = send_chan.close();
+    *STATE.status.write() = ConnectionState::Disconnected;
+    Ok(())
+}

src/lib.rs

@@ -1,18 +1,16 @@
-pub mod app;
-
 use app::ChannelId;
 use app::Chat;
 use app::Command;
 use app::ConnectionState;
-use dioxus::prelude::*;
-
 use app::STATE;
+use dioxus::prelude::*;
 use futures::select;
 use futures::FutureExt;
 use futures::SinkExt;
 use futures::StreamExt;
 use futures_channel::mpsc::UnboundedSender;
 use gloo_timers::future::TimeoutFuture;
+pub use imp::Error;
 use manganis::{file, mg};
 use markdown;
 use mumble_protocol::control::ControlPacket;
@@ -22,324 +20,24 @@ use mumble_protocol::voice::VoicePacketPayload;
 use std::collections::hash_map::Entry;
 use std::collections::HashMap;
 use std::fmt;
-use wasm_bindgen::prelude::*;
-use wasm_bindgen_futures::spawn_local as spawn;
-use wasm_bindgen_futures::{future_to_promise, JsFuture};
-use web_sys::console;
-use web_sys::js_sys::Promise;
-use web_sys::js_sys::Reflect;
-use web_sys::js_sys::Uint8Array;
-use web_sys::window;
-use web_sys::AudioContext;
-use web_sys::AudioContextOptions;
-use web_sys::AudioData;
-use web_sys::AudioDecoder;
-use web_sys::AudioDecoderConfig;
-use web_sys::AudioDecoderInit;
-use web_sys::AudioEncoder;
-use web_sys::AudioEncoderConfig;
-use web_sys::AudioEncoderInit;
-use web_sys::AudioWorkletNode;
-use web_sys::EncodedAudioChunk;
-use web_sys::EncodedAudioChunkInit;
-use web_sys::EncodedAudioChunkType;
-use web_sys::MediaStream;
-use web_sys::MediaStreamConstraints;
-use web_sys::MediaStreamTrackGenerator;
-use web_sys::MediaStreamTrackGeneratorInit;
-use web_sys::MessageEvent;
-use web_sys::WebTransport;
-use web_sys::WebTransportBidirectionalStream;
-use web_sys::WebTransportOptions;
-use web_sys::WorkletOptions;
 
-mod ass {
-    use byteorder::{ByteOrder, LittleEndian};
-    use ogg::PacketWriter;
+pub mod app;
 
-    const VER: &str = "ballz";
+#[cfg(feature = "web")]
+#[path = "imp/web.rs"]
+pub mod imp;
 
-    const fn to_samples<const S_PS: u32>(ms: u32) -> usize {
-        ((S_PS * ms) / 1000) as usize
-    }
+/*
+#[cfg(feature = "desktop")]
+#[path = "imp/desktop.rs"]
+pub mod imp;
+*/
 
-    const fn calc_sr_u64(val: u64, from: u32, to: u32) -> u64 {
-        (val * to as u64) / from as u64
-    }
-
-    pub fn encode(pre_encoded_frames: Vec<Vec<u8>>, frame_size: usize, skip: u16) -> Vec<u8> {
-        let mut buffer: Vec<u8> = Vec::new();
-        let mut packet_writer = PacketWriter::new(&mut buffer);
-
-        // Hardcoded serial number
-        let serial = 12345;
-
-        let skip_48 = calc_sr_u64(skip.into(), 48000, 48000);
-
-        let opus_head: [u8; 19] = [
-            b'O', b'p', b'u', b's', b'H', b'e', b'a', b'd', 1, 1, // NUM_CHANNELS = 1
-            0, 0, 0, 0, 0, 0, 0, 0, 0,
-        ];
-
-        let mut head = opus_head;
-        LittleEndian::write_u16(&mut head[10..12], skip_48 as u16);
-        LittleEndian::write_u32(&mut head[12..16], 48000);
-
-        let mut opus_tags: Vec<u8> = Vec::with_capacity(60);
-        let vendor_str = format!("ogg-opus {}", VER);
-        opus_tags.extend(b"OpusTags");
-        let mut len_bf = [0u8; 4];
-        LittleEndian::write_u32(&mut len_bf, vendor_str.len() as u32);
-        opus_tags.extend(&len_bf);
-        opus_tags.extend(vendor_str.bytes());
-        opus_tags.extend(&[0u8; 4]);
-
-        let _ = packet_writer.write_packet(&head, serial, ogg::PacketWriteEndInfo::EndPage, 0);
-        let _ = packet_writer.write_packet(&opus_tags, serial, ogg::PacketWriteEndInfo::EndPage, 0);
-
-        for (i, frame) in pre_encoded_frames.iter().enumerate() {
-            let is_last = i == pre_encoded_frames.len() - 1;
-            //let granule_pos = 0;
-            let granule_pos =
-                calc_sr_u64((skip as usize + (i + 1) * frame_size) as u64, 48000, 48000);
-
-            let _ = packet_writer.write_packet(
-                frame.clone(),
-                serial,
-                if is_last {
-                    ogg::PacketWriteEndInfo::EndStream
-                } else {
-                    ogg::PacketWriteEndInfo::NormalPacket
-                },
-                granule_pos,
-            );
-        }
-
-        buffer
-    }
-}
-
-// Function to download data as a file
-pub fn download_data(data: Vec<u8>, filename: &str) -> Result<(), JsValue> {
-    use wasm_bindgen::prelude::*;
-    use web_sys::{window, Blob, HtmlAnchorElement, Url};
-    // Create a new Blob from the data
-    let array = web_sys::js_sys::Uint8Array::from(&data[..]);
-    let blob = Blob::new_with_u8_array_sequence(&vec![array].into())?;
-
-    // Create a URL for the Blob
-    let url = Url::create_object_url_with_blob(&blob)?;
-
-    // Create an anchor element and set its href to the Blob URL
-    let document = window().unwrap().document().unwrap();
-    let a = document
-        .create_element("a")?
-        .dyn_into::<HtmlAnchorElement>()?;
-    a.set_href(&url);
-    a.set_download(filename);
-
-    // Append the anchor to the document body, click it, and remove it
-    document.body().unwrap().append_child(&a)?;
-    a.click();
-    document.body().unwrap().remove_child(&a)?;
-
-    // Revoke the object URL to free resources
-    Url::revoke_object_url(&url)?;
-
-    Ok(())
-}
-
-// Borrowed from
-// https://github.com/security-union/videocall-rs/blob/main/videocall-client/src/decode/config.rs#L6
-fn configure_audio_context() -> AudioContext {
-    let mut audio_context_options = AudioContextOptions::new();
-    audio_context_options.sample_rate(48000 as f32);
-    let audio_context = AudioContext::new_with_context_options(&audio_context_options).unwrap();
-    audio_context
-}
-
-trait PromiseExt {
-    fn into_future(self) -> JsFuture;
-}
-
-impl PromiseExt for Promise {
-    fn into_future(self) -> JsFuture {
-        self.into()
-    }
-}
-
-async fn create_encoder_worklet(
-    audio_context: &AudioContext,
-    packets: UnboundedSender<ControlPacket<mumble_protocol::Serverbound>>,
-) -> Result<AudioWorkletNode, JsValue> {
-    let stream = window()
-        .unwrap()
-        .navigator()
-        .media_devices()?
-        .get_user_media_with_constraints(MediaStreamConstraints::new().audio(&JsValue::TRUE))?
-        .into_future()
-        .await?
-        .dyn_into()
-        .map_err(|e| JsError::new(&format!("not a stream: {e:?}")))?;
-
-    let options = WorkletOptions::new();
-    Reflect::set(
-        &options,
-        &"processorOptions".into(),
-        &wasm_bindgen::module(),
-    )?;
-
-    let module = "rust_mic_worklet.js";
-    console::log_1(&format!("Loading mic worklet from {module:?}").into());
-    audio_context
-        .audio_worklet()?
-        .add_module_with_options(module, &options)?
-        .into_future()
-        .await?;
-
-    let source = audio_context.create_media_stream_source(&stream)?;
-    let worklet_node = AudioWorkletNode::new(audio_context, "rust_mic_worklet")?;
-
-    let error: Closure<dyn FnMut(JsValue)> = Closure::new(|e| console::error_1(&e));
-
-    let mut download_buffer = std::cell::RefCell::new(Vec::new());
-
-    // This knows what MediaStreamTrackGenerator to use as it closes around it
-    let mut sequence_num = 0;
-    let output: Closure<dyn FnMut(EncodedAudioChunk)> =
-        Closure::new(move |audio_data: EncodedAudioChunk| {
-            let mut array = vec![0u8; audio_data.byte_length() as usize];
-            audio_data.copy_to_with_u8_array(&mut array);
-
-            download_buffer.borrow_mut().push(array.clone());
-            if download_buffer.borrow().len() > 200 {
-                //download_data(download_buffer.borrow().to_vec(), "download_buffer.opus");
-                //download_data(
-                //    ass::encode(download_buffer.borrow().to_vec(), 960, 0),
-                //    "download_buffer.opus",
-                //);
-                download_buffer.borrow_mut().clear();
-            }
-
-            let _ =
-                packets.unbounded_send(ControlPacket::UDPTunnel(Box::new(VoicePacket::Audio {
-                    _dst: std::marker::PhantomData,
-                    target: 0,
-                    session_id: (),
-                    seq_num: sequence_num,
-                    payload: VoicePacketPayload::Opus(array.into(), false),
-                    position_info: None,
-                })));
-            sequence_num = sequence_num.wrapping_add(2);
-        });
-
-    let audio_encoder = AudioEncoder::new(&AudioEncoderInit::new(
-        error.as_ref().unchecked_ref(),
-        output.as_ref().unchecked_ref(),
-    ))
-    .unwrap();
-
-    // This is required to prevent these from being deallocated
-    error.forget();
-    output.forget();
-    let encoder_config = AudioEncoderConfig::new("opus");
-    encoder_config.set_number_of_channels(1);
-    encoder_config.set_sample_rate(48000);
-    encoder_config.set_bitrate(72_000.0);
-
-    audio_encoder.configure(&encoder_config);
-    console::log_1(&"Created Audio Encoder".into());
-
-    let mut download_buffer = std::cell::RefCell::new(Vec::new());
-
-    let onmessage: Closure<dyn FnMut(MessageEvent)> = Closure::new(move |event: MessageEvent| {
-        match AudioData::new(event.data().unchecked_ref()) {
-            Ok(data) => {
-                let x = web_sys::AudioDataCopyToOptions::new(0);
-                x.set_format(web_sys::AudioSampleFormat::F32);
-                let mut sub_buffer = vec![0; data.allocation_size(&x).unwrap() as usize];
-                data.copy_to_with_u8_array(&mut sub_buffer, &x);
-                download_buffer.borrow_mut().append(&mut sub_buffer);
-                if download_buffer.borrow().len() > 48000 * 10 * 4 {
-                    //pub fn download_data(data: Vec<u8>, filename: &str) -> Result<(), JsValue> {
-                    //download_data(download_buffer.borrow().to_vec(), "download_buffer.pcm32");
-                    download_buffer.borrow_mut().clear();
-                }
-
-                audio_encoder.encode(&data);
-            }
-            Err(err) => {
-                console::error_1(&err);
-                console::debug_1(&event);
-            }
-        }
-    });
-    Reflect::set(
-        &Reflect::get(&worklet_node, &"port".into())?,
-        &"onmessage".into(),
-        onmessage.as_ref(),
-    )?;
-    onmessage.forget();
-
-    source.connect_with_audio_node(&worklet_node)?;
-    worklet_node.connect_with_audio_node(&audio_context.destination())?;
-
-    Ok(worklet_node)
-}
-
-fn create_decoder(audio_context: &AudioContext) -> Result<AudioDecoder, JsValue> {
-    let audio_stream_generator =
-        MediaStreamTrackGenerator::new(&MediaStreamTrackGeneratorInit::new("audio"))?;
-
-    // Create MediaStream from MediaStreamTrackGenerator
-    let js_tracks = web_sys::js_sys::Array::new();
-    js_tracks.push(&audio_stream_generator);
-    let media_stream = MediaStream::new_with_tracks(&js_tracks)?;
-
-    // Create MediaStreamAudioSourceNode
-    let audio_source = audio_context.create_media_stream_source(&media_stream)?;
-    // Connect output of audio_source to audio_context (browser audio)
-    audio_source.connect_with_audio_node(&audio_context.destination())?;
-
-    // Create callback functions for AudioDecoder
-    let error = Closure::wrap(Box::new(move |e: JsValue| {
-        console::error_1(&e);
-    }) as Box<dyn FnMut(JsValue)>);
-
-    // This knows what MediaStreamTrackGenerator to use as it closes around it
-    let output = Closure::wrap(Box::new(move |audio_data: AudioData| {
-        let writable = audio_stream_generator.writable();
-        if writable.locked() {
-            return;
-        }
-        if let Err(e) = writable.get_writer().map(|writer| {
-            spawn(async move {
-                if let Err(e) = JsFuture::from(writer.ready()).await {
-                    console::error_1(&format!("write chunk ready error {:?}", e).into());
-                }
-                if let Err(e) = JsFuture::from(writer.write_with_chunk(&audio_data)).await {
-                    console::error_1(&format!("write chunk error {:?}", e).into());
-                };
-                writer.release_lock();
-            });
-        }) {
-            console::error_1(&e);
-        }
-    }) as Box<dyn FnMut(AudioData)>);
-
-    let audio_decoder = AudioDecoder::new(&AudioDecoderInit::new(
-        error.as_ref().unchecked_ref(),
-        output.as_ref().unchecked_ref(),
-    ))?;
-
-    audio_decoder.configure(&AudioDecoderConfig::new("opus", 1, 48000));
-    console::log_1(&"Created Audio Decoder".into());
-
-    // This is required to prevent these from being deallocated
-    error.forget();
-    output.forget();
-
-    Ok(audio_decoder)
+#[macro_export]
+macro_rules! bail {
+    ($($x:tt)*) => {
+        return Err(crate::Error::new(format!($($x)*)))
+    };
 }
 
 pub async fn network_entrypoint(mut event_rx: UnboundedReceiver<Command>) {
@@ -353,201 +51,17 @@ pub async fn network_entrypoint(mut event_rx: UnboundedReceiver<Command>) {
             panic!("Did not receive connect command")
         };
 
-        if let Err(error) = network_connect(address, username, &mut event_rx).await {
-            console::error_1(&error);
-            let text = js_sys::Object::from(error).to_string().into();
-            *STATE.status.write() = ConnectionState::Failed(text);
+        if let Err(error) = imp::network_connect(address, username, &mut event_rx).await {
+            error.log();
+            *STATE.status.write() = ConnectionState::Failed(error.to_string());
         }
     }
 }
 
-macro_rules! bail {
-    ($($x:tt)*) => {
-        return Err(wasm_bindgen::JsError::new(&format!($($x)*)).into())
-    };
-}
-
-async fn network_connect(
-    address: String,
-    username: String,
-    event_rx: &mut UnboundedReceiver<Command>,
-) -> Result<(), JsValue> {
-    *STATE.server.write() = Default::default();
-    *STATE.status.write() = ConnectionState::Connecting;
-
-    console::log_1(&"Rust via WASM!".into());
-
-    let Ok(server_hash): Result<Vec<u8>, _> = include_str!("../server_hash.txt")
-        .trim()
-        .trim_matches(&['[', ']'])
-        .split(',')
-        .map(|x| x.trim().parse())
-        .collect()
-    else {
-        bail!("could not parse server hash");
-    };
-    let hash = web_sys::js_sys::Uint8Array::from(server_hash.as_slice());
-
-    let object = web_sys::js_sys::Object::new();
-
-    Reflect::set(
-        &object,
-        &JsValue::from_str("algorithm"),
-        &JsValue::from_str("sha-256"),
-    )?;
-
-    web_sys::js_sys::Reflect::set(&object, &"value".into(), &hash)?;
-
-    let array = web_sys::js_sys::Array::new();
-    array.push(&object);
-
-    console::log_1(&object.clone().into());
-    console::log_1(&"Created option object!".into());
-
-    let mut options = WebTransportOptions::new();
-    options.server_certificate_hashes(&array);
-
-    console::log_1(&"Created WebTransportOptions!".into());
-
-    let transport = WebTransport::new_with_options(&address, &options)?;
-    console::log_1(&"Created WebTransport connection object.".into());
-    console::log_1(&transport.clone().into());
-
-    if let Err(e) = wasm_bindgen_futures::JsFuture::from(transport.ready()).await {
-        bail!("could not connect to transport: {e:?}");
-    }
-
-    console::log_1(&"Transport is ready.".into());
-
-    let stream: WebTransportBidirectionalStream =
-        wasm_bindgen_futures::JsFuture::from(transport.create_bidirectional_stream())
-            .await?
-            .into();
-
-    let wasm_stream_readable = wasm_streams::ReadableStream::from_raw(stream.readable().into());
-    let wasm_stream_writable = wasm_streams::WritableStream::from_raw(stream.writable().into());
-
-    let read_codec = ClientControlCodec::new();
-    let write_codec = ClientControlCodec::new();
-
-    let mut reader =
-        asynchronous_codec::FramedRead::new(wasm_stream_readable.into_async_read(), read_codec);
-    let mut writer =
-        asynchronous_codec::FramedWrite::new(wasm_stream_writable.into_async_write(), write_codec);
-
-    let (mut send_chan, mut writer_recv_chan) = futures_channel::mpsc::unbounded();
-
-    // Spawn worker to send packets.
-    spawn(async move {
-        while let Some(msg) = writer_recv_chan.next().await {
-            if !matches!(msg, ControlPacket::Ping(_) | ControlPacket::UDPTunnel(_)) {
-                console::log_1(&format!("sending {:#?}", msg).into());
-            }
-            if let Err(e) = writer.send(msg).await {
-                console::error_1(&e.to_string().into());
-                break;
-            }
-        }
-    });
-
-    // Get version packet
-    let version = match reader.next().await {
-        Some(Ok(v)) => v,
-        Some(Err(err)) => bail!("bad version packet: {err:?}"),
-        None => bail!("no version was recieved"),
-    };
-    console::log_1(&"Got version packet".into());
-    console::log_1(&format!("{:#?}", version).into());
-
-    // Send version packet
-    let mut msg = msgs::Version::new();
-    msg.set_version(0x000010204);
-    msg.set_release(format!("{} {}", "mumbleweb2", "6.9.0"));
-    //msg.set_os("Chrome".to_string());
-    send_chan.send(msg.into()).await.unwrap();
-
-    // Send authenticate packet
-    let mut msg = msgs::Authenticate::new();
-    msg.set_username(username);
-    msg.set_opus(true);
-    send_chan.send(msg.into()).await.unwrap();
-
-    // Spawn worker to send pings
-    {
-        let mut send_chan = send_chan.clone();
-        spawn(async move {
-            loop {
-                if let Err(e) = send_chan.send(msgs::Ping::new().into()).await {
-                    console::log_1(&"could not ping".into());
-                    console::log_1(&e.to_string().into());
-                    break;
-                }
-
-                TimeoutFuture::new(3000).await;
-            }
-        });
-    }
-
-    // Create MediaStreams to playback decoded audio
-    // The audio context is used to reproduce audio.
-    let audio_context = configure_audio_context();
-
-    let audio_context_worklet = audio_context.clone();
-    let packet_sender_worklet = send_chan.clone();
-    spawn(async move {
-        match create_encoder_worklet(&audio_context_worklet, packet_sender_worklet).await {
-            Ok(node) => console::log_2(&"Created audio worklet:".into(), &node),
-            Err(err) => console::error_1(&err),
-        }
-    });
-
-    // Create map of session_id -> AudioDecoder
-    let mut decoder_map = HashMap::new();
-
-    let mut reader_future = reader.next().fuse();
-    let mut command_future = event_rx.next();
-    loop {
-        select! {
-            packet = reader_future => {
-                reader_future = reader.next().fuse();
-                match packet {
-                    Some(Ok(msg)) => {
-                        let res =accept_packet(msg, &audio_context, &mut decoder_map);
-                        if let Err(err) = res {
-                            console::error_1(&err.into());
-                        }
-                    },
-                    Some(Err(err)) => console::error_1(&err.to_string().into()),
-                    None => break,
-                }
-            }
-            command = command_future => {
-                command_future = event_rx.next();
-                if let Some(command) = &command {
-                    console::log_1(&format!("commanding {:#?}", command).into());
-                }
-                match command {
-                    Some(Command::Disconnect) => break,
-                    Some(command) => {
-                        let res = accept_command(command, &mut send_chan);
-                        if let Err(err) = res {
-                            console::error_1(&err.into());
-                        }
-                    }
-                    None => continue,
-                }
-            }
-        }
-    }
-    let _ = send_chan.close();
-    *STATE.status.write() = ConnectionState::Disconnected;
-    Ok(())
-}
-
 fn accept_command(
     command: Command,
     send_chan: &mut UnboundedSender<ControlPacket<mumble_protocol::Serverbound>>,
-) -> Result<(), JsValue> {
+) -> Result<(), Error> {
     match command {
         Command::SendChat { markdown, channels } => {
             use markdown::*;
@@ -591,12 +105,9 @@ fn accept_command(
 
 fn accept_packet(
     msg: ControlPacket<mumble_protocol::Clientbound>,
-    audio_context: &AudioContext,
-    decoder_map: &mut HashMap<u32, AudioDecoder>,
-) -> Result<(), JsValue> {
-    if !matches!(msg, ControlPacket::UDPTunnel(_) | ControlPacket::Ping(_)) {
-        console::log_1(&format!("receiving {:#?}", msg).into());
-    }
+    audio_context: &imp::AudioContext,
+    player_map: &mut HashMap<u32, imp::AudioPlayer>,
+) -> Result<(), Error> {
     match msg {
         ControlPacket::UDPTunnel(u) => {
             match *u.clone() {
@@ -609,10 +120,10 @@ fn accept_packet(
                     position_info,
                 } => {
                     // Get or create audio decoder for this user
-                    let audio_decoder = match decoder_map.entry(session_id) {
+                    let audio_player = match player_map.entry(session_id) {
                         Entry::Occupied(occupied_entry) => occupied_entry.into_mut(),
                         Entry::Vacant(vacant_entry) => {
-                            vacant_entry.insert(create_decoder(&audio_context)?)
+                            vacant_entry.insert(imp::create_player(&audio_context)?)
                         }
                     };
                     // This will over time (as users join and leave) leak
@@ -621,15 +132,7 @@ fn accept_packet(
                     // infra on channel join and update it as new users join the channel, dropping
                     // any audio packets that come in the meantime.
                     if let VoicePacketPayload::Opus(audio_payload, end_bit) = payload {
-                        let js_audio_payload = Uint8Array::from(audio_payload.as_ref());
-                        let _ = audio_decoder.decode(
-                            &EncodedAudioChunk::new(&EncodedAudioChunkInit::new(
-                                &js_audio_payload.into(),
-                                0.0,
-                                EncodedAudioChunkType::Key,
-                            ))
-                            .unwrap(),
-                        );
+                        audio_player.play_opus(audio_payload.as_ref());
                         //console::log_1(&"Oueued audio chunk for decoding".into());
                     }
                 }