├── .envrc
├── .gitignore
├── Cargo.lock
├── Cargo.toml
├── Dockerfile
├── LICENSE
├── README.md
├── docker-compose.yml
├── flake.lock
├── flake.nix
├── nix
    ├── devshell.nix
    ├── homeManagerModules
    │   └── realtime-stt-server.nix
    ├── nixosModules
    │   └── realtime-stt-server.nix
    └── packages
    │   ├── realtime-stt-server.nix
    │   ├── realtime-stt.nix
    │   └── whisper-overlay.nix
├── realtime-stt-server.py
└── src
    ├── app.rs
    ├── cli.rs
    ├── hotkeys.rs
    ├── keyboard.rs
    ├── main.rs
    ├── style.css
    ├── util.rs
    └── waybar.rs


/.envrc:
--------------------------------------------------------------------------------
1 | use flake
2 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | .direnv
2 | result*
3 | .pre-commit-config.yaml
4 | /target/
5 | 


--------------------------------------------------------------------------------
/Cargo.lock:
--------------------------------------------------------------------------------
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2623 | checksum = "4e4246f76bdeff09eb48875a0fd3e2af6aada79d409d33011886d3e1581517d9"
2624 | 
2625 | [[package]]
2626 | name = "windows_x86_64_gnullvm"
2627 | version = "0.42.2"
2628 | source = "registry+https://github.com/rust-lang/crates.io-index"
2629 | checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
2630 | 
2631 | [[package]]
2632 | name = "windows_x86_64_gnullvm"
2633 | version = "0.48.5"
2634 | source = "registry+https://github.com/rust-lang/crates.io-index"
2635 | checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
2636 | 
2637 | [[package]]
2638 | name = "windows_x86_64_gnullvm"
2639 | version = "0.52.5"
2640 | source = "registry+https://github.com/rust-lang/crates.io-index"
2641 | checksum = "852298e482cd67c356ddd9570386e2862b5673c85bd5f88df9ab6802b334c596"
2642 | 
2643 | [[package]]
2644 | name = "windows_x86_64_msvc"
2645 | version = "0.42.2"
2646 | source = "registry+https://github.com/rust-lang/crates.io-index"
2647 | checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
2648 | 
2649 | [[package]]
2650 | name = "windows_x86_64_msvc"
2651 | version = "0.48.5"
2652 | source = "registry+https://github.com/rust-lang/crates.io-index"
2653 | checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
2654 | 
2655 | [[package]]
2656 | name = "windows_x86_64_msvc"
2657 | version = "0.52.5"
2658 | source = "registry+https://github.com/rust-lang/crates.io-index"
2659 | checksum = "bec47e5bfd1bff0eeaf6d8b485cc1074891a197ab4225d504cb7a1ab88b02bf0"
2660 | 
2661 | [[package]]
2662 | name = "winnow"
2663 | version = "0.5.40"
2664 | source = "registry+https://github.com/rust-lang/crates.io-index"
2665 | checksum = "f593a95398737aeed53e489c785df13f3618e41dbcd6718c6addbf1395aa6876"
2666 | dependencies = [
2667 |  "memchr",
2668 | ]
2669 | 
2670 | [[package]]
2671 | name = "winnow"
2672 | version = "0.6.13"
2673 | source = "registry+https://github.com/rust-lang/crates.io-index"
2674 | checksum = "59b5e5f6c299a3c7890b876a2a587f3115162487e704907d9b6cd29473052ba1"
2675 | dependencies = [
2676 |  "memchr",
2677 | ]
2678 | 
2679 | [[package]]
2680 | name = "wyz"
2681 | version = "0.5.1"
2682 | source = "registry+https://github.com/rust-lang/crates.io-index"
2683 | checksum = "05f360fc0b24296329c78fda852a1e9ae82de9cf7b27dae4b7f62f118f77b9ed"
2684 | dependencies = [
2685 |  "tap",
2686 | ]
2687 | 
2688 | [[package]]
2689 | name = "xkbcommon"
2690 | version = "0.7.0"
2691 | source = "registry+https://github.com/rust-lang/crates.io-index"
2692 | checksum = "13867d259930edc7091a6c41b4ce6eee464328c6ff9659b7e4c668ca20d4c91e"
2693 | dependencies = [
2694 |  "libc",
2695 |  "memmap2",
2696 |  "xkeysym",
2697 | ]
2698 | 
2699 | [[package]]
2700 | name = "xkeysym"
2701 | version = "0.2.1"
2702 | source = "registry+https://github.com/rust-lang/crates.io-index"
2703 | checksum = "b9cc00251562a284751c9973bace760d86c0276c471b4be569fe6b068ee97a56"
2704 | 
2705 | [[package]]
2706 | name = "xml-rs"
2707 | version = "0.8.20"
2708 | source = "registry+https://github.com/rust-lang/crates.io-index"
2709 | checksum = "791978798f0597cfc70478424c2b4fdc2b7a8024aaff78497ef00f24ef674193"
2710 | 


--------------------------------------------------------------------------------
/Cargo.toml:
--------------------------------------------------------------------------------
 1 | [package]
 2 | name = "whisper-overlay"
 3 | version = "1.0.0"
 4 | edition = "2021"
 5 | authors = ["oddlama <oddlama@oddlama.org>"]
 6 | description = "A wayland overlay providing speech-to-text functionality for any application via a global push-to-talk hotkey"
 7 | homepage = "https://github.com/oddlama/whisper-overlay"
 8 | repository = "https://github.com/oddlama/embedded-devices"
 9 | keywords = ["whisper", "speech-to-text", "stt", "faster-whisper", "wayland"]
10 | categories = ["command-line-utilities"]
11 | license = "MIT"
12 | 
13 | [dependencies]
14 | async-channel = "2.3.1"
15 | bytemuck = "1.16.0"
16 | clap = { version = "4.5.7", features = ["derive"] }
17 | color-eyre = "0.6.3"
18 | colorgrad = "0.6.2"
19 | cpal = "0.15.3"
20 | enigo = { version = "0.2.1", features = ["wayland"], default-features = false }
21 | evdev = { version = "0.12.2", features = ["tokio"] }
22 | futures-util = "0.3.30"
23 | gdk = { version = "0.8.2", package = "gdk4", features = ["v4_14"] }
24 | gdk-wayland = { version = "0.8.2", package = "gdk4-wayland", features = ["wayland_crate", "v4_12"] }
25 | gtk = { version = "0.8.2", package = "gtk4", features = ["v4_14"] }
26 | gtk-layer-shell = { version = "0.3.0", package = "gtk4-layer-shell" }
27 | notify = "6.1.1"
28 | serde = { version = "1.0.203", features = ["derive"] }
29 | serde_json = "1.0.117"
30 | tokio = { version = "1.38.0", features = ["rt-multi-thread", "io-util", "sync", "time", "macros", "full"] }
31 | tokio-util = { version = "0.7.11", features = ["codec"] }
32 | 


--------------------------------------------------------------------------------
/Dockerfile:
--------------------------------------------------------------------------------
 1 | FROM nvidia/cuda:12.4.1-runtime-ubuntu22.04 as gpu
 2 | 
 3 | WORKDIR /app
 4 | 
 5 | RUN apt-get update -y && \
 6 |   apt-get install -y git python3 python3-pip libcudnn8 libcudnn8-dev libcublas-12-4 portaudio19-dev
 7 | 
 8 | RUN pip3 install torch==2.3.0 torchaudio==2.3.0
 9 | 
10 | RUN git clone https://github.com/oddlama/RealtimeSTT
11 | RUN pip3 install -r RealtimeSTT/requirements-gpu.txt
12 | RUN cp -va RealtimeSTT/RealtimeSTT /app
13 | COPY realtime-stt-server.py /app/realtime-stt-server.py
14 | 
15 | EXPOSE 7007
16 | ENV PYTHONPATH "${PYTHONPATH}:/app"
17 | RUN export PYTHONPATH="${PYTHONPATH}:/app"
18 | CMD ["python3", "realtime-stt-server.py", "--host", "0.0.0.0"]
19 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | Copyright (c) 2024 oddlama
 2 | 
 3 | Permission is hereby granted, free of charge, to any
 4 | person obtaining a copy of this software and associated
 5 | documentation files (the "Software"), to deal in the
 6 | Software without restriction, including without
 7 | limitation the rights to use, copy, modify, merge,
 8 | publish, distribute, sublicense, and/or sell copies of
 9 | the Software, and to permit persons to whom the Software
10 | is furnished to do so, subject to the following
11 | conditions:
12 | 
13 | The above copyright notice and this permission notice
14 | shall be included in all copies or substantial portions
15 | of the Software.
16 | 
17 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
18 | ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
19 | TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
20 | PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
21 | SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
22 | CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
24 | IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25 | DEALINGS IN THE SOFTWARE.
26 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
  1 | [Quick Start](#-quick-start) \| [Installation](#-installation) \| [Usage](#-usage) \| [Limitations](#-limitations)
  2 | 
  3 | https://github.com/oddlama/whisper-overlay/assets/31919558/5670df1f-ec46-44f3-ba85-23a7e8d3fd55
  4 | 
  5 | [![Crate](https://img.shields.io/crates/v/whisper-overlay.svg)](https://crates.io/crates/whisper-overlay)
  6 | 
  7 | ## 💬 whisper-overlay
  8 | 
  9 | A wayland overlay providing speech-to-text functionality for any application via a global push-to-talk hotkey.
 10 | Anything you are saying while holding the hotkey will be transcribed in real-time and shown on-screen.
 11 | The live transcriptions use a faster but less accurate model but as soon as you pause speaking or release
 12 | the hotkey, the transcription will be updated using a second, more accurate model.
 13 | This resulting text will then be typed into the window that is currently focused.
 14 | 
 15 | - On-screen, realtime live transcriptions via CUDA and faster-whisper
 16 | - The server-client based architecture allows you to host the model on another machine
 17 | - Native waybar integration for status display
 18 | - Utilizes `layer-shell` and `virtual-keyboard-v1` to support most wayland compositors
 19 | 
 20 | This makes use of the [RealtimeSTT](https://github.com/KoljaB/RealtimeSTT) python library to provide
 21 | live transcriptions, which in turn uses [faster-whisper](https://github.com/SYSTRAN/faster-whisper)
 22 | for both the actual realtime and high-fidelity transcription model.
 23 | 
 24 | Requirements:
 25 | 
 26 | - A wayland compositor (sway, hyprland, ...)
 27 | - A GPU with CUDA support is highly recommended, otherwise translation will have a significantly latency even
 28 |   on a modern CPU (1 second latency for live transcription and ~5 seconds for the result)
 29 | 
 30 | ## 🚀 Quick Start
 31 | 
 32 | - Clone and enter the repository
 33 |   ```
 34 |   git clone https://github.com/oddlama/whisper-overlay
 35 |   cd whisper-overlay
 36 |   ```
 37 | 
 38 | - Start the realtime-stt-server using docker
 39 |   ```
 40 |   docker-compose up
 41 |   ```
 42 | 
 43 | - Install and run whisper-overlay
 44 |   ```
 45 |   cargo install whisper-overlay
 46 |   whisper-overlay overlay
 47 |   # Or alternatively select a hotkey:
 48 |   #whisper-overlay overlay --hotkey KEY_F12
 49 |   ```
 50 | 
 51 | Now press and hold <kbd>Right Ctrl</kbd> to transcribe. For a permanent installation
 52 | I recommend starting the server as a systemd service and adding the `whisper-overlay overlay`
 53 | as a startup command to your desktop environment / compositor.
 54 | 
 55 | ## ⚙️ Usage
 56 | 
 57 | In principle you just need to start `./realtime-stt-server.py` and it will be listening for requests on `localhost:7007`.
 58 | You can then start `whisper-overlay overlay` to transcribe text. The default hotkey is <kbd>Right Ctrl</kbd>,
 59 | but you can change this by specifying any name from [evdev::Key](https://docs.rs/evdev/latest/evdev/struct.Key.html),
 60 | for example `KEY_F12` for <kbd>F12</kbd>. Beware that the hotkey is only observed and will still be passed to the application that is focused.
 61 | 
 62 | #### Server (realtime-stt-server)
 63 | 
 64 | If you want to change the server settings, it comes with the following options:
 65 | 
 66 | ```bash
 67 | > realtime-stt-server.py --help
 68 | usage: realtime-stt-server.py [-h] [--host HOST] [--port PORT] [--device DEVICE] [--model MODEL]
 69 |                               [--model-realtime MODEL_REALTIME] [--language LANGUAGE] [--debug]
 70 | 
 71 | options:
 72 |   -h, --help            show this help message and exit
 73 |   --host HOST           The host to listen on [default: 'localhost']
 74 |   --port PORT           The port to listen on [default: 7007]
 75 |   --device DEVICE       Device to run the models on, defaults to cuda if available, else cpu [default: 'cuda']
 76 |   --model MODEL         Main model used to generate the final transcription [default: 'large-v3']
 77 |   --model-realtime MODEL_REALTIME
 78 |                         Faster model used to generate live transcriptions [default: 'base']
 79 |   --language LANGUAGE   Set the spoken language. Leave empty to auto-detect. [default: '']
 80 |   --debug               Enable debug log output [default: unset]
 81 | ```
 82 | 
 83 | #### Client (whisper-overlay)
 84 | 
 85 | The actual overlay can also be customized, for example by providing your own gtk style
 86 | (refer to [the builtin style.css](./src/style.css) as a reference), or by changing the hotkey.
 87 | It has the following options:
 88 | 
 89 | ```bash
 90 | > whisper-overlay overlay --help
 91 | Usage: whisper-overlay overlay [OPTIONS]
 92 | 
 93 | Options:
 94 |   -a, --address <ADDRESS>  The address of the the whisper streaming instance (host:port) [default: localhost:7007]
 95 |   -s, --style <STYLE>      An optional stylesheet for the overlay, which replaces the internal style
 96 |       --hotkey <HOTKEY>    Specifies the hotkey to activate voice input. You can use any key or button name from [evdev::Key](https://docs.rs/evdev/latest/evdev/struct.Key.html) [default: KEY_RIGHTCTRL]
 97 |   -h, --help               Print help
 98 | ```
 99 | 
100 | ## 📦 Installation
101 | 
102 | <details>
103 | <summary>
104 | 
105 | ### 🐳 Docker & cargo
106 | </summary>
107 | 
108 | For a quick and simple install, you can run the server using docker and
109 | install the overlay directly via cargo:
110 | 
111 | ```bash
112 | git clone https://github.com/oddlama/whisper-overlay
113 | cd whisper-overlay
114 | 
115 | # Start realtime-stt-server
116 | docker-compose up
117 | 
118 | # Install and run overlay
119 | cargo install whisper-overlay
120 | whisper-overlay overlay
121 | ```
122 | 
123 | </details>
124 | <details>
125 | <summary>
126 | 
127 | ### ❄️ NixOS
128 | </summary>
129 | 
130 | This application comes with both a NixOS module and a Home Manager module.
131 | If you just want the packages, there's also an overlay available which is automatically
132 | added by the two modules. If you want to run the service at all times, use the NixOS module (e.g. if running on a network host).
133 | If you want to be able to start and stop the service as your user, use the home manager module.
134 | 
135 | In any case, add this flake as an input:
136 | 
137 | ```nix
138 | {
139 |   inputs = {
140 |     # ...
141 |     whisper-overlay.url = "github:oddlama/whisper-overlay";
142 |     whisper-overlay.inputs.nixpkgs.follows = "nixpkgs";
143 |   };
144 | }
145 | ```
146 | 
147 | #### Home Manager service
148 | 
149 | Import the HomeManager module exposed by this flake to your configuration,
150 | and set `services.realtime-stt-server.enable` in your user configuration.
151 | 
152 | ```nix
153 | # This is a home-manager config module
154 | {
155 |   imports = [
156 |     inputs.whisper-overlay.homeManagerModules.default
157 |   ];
158 | 
159 |   # Also make sure to enable cuda support in nixpkgs, otherwise transcription will
160 |   # be painfully slow. But be prepared to let your computer build packages for 2-3 hours.
161 |   nixpkgs.config.cudaSupport = true;
162 | 
163 |   # Enable the user service
164 |   services.realtime-stt-server.enable = true;
165 |   # If you want to automatically start the service with your graphical session,
166 |   # enable this too. If you want to start and stop the service on demand to save
167 |   # resources, don't enable this and use `systemctl --user <start|stop> realtime-stt-server`.
168 |   services.realtime-stt-server.autoStart = true;
169 | 
170 |   # Add the whisper-overlay package so you can start it manually.
171 |   # Alternatively add it to the autostart of your display environment or window manager.
172 |   home.packages = [pkgs.whisper-overlay];
173 | }
174 | ```
175 | 
176 | #### NixOS service
177 | 
178 | Import the NixOS module exposed by this flake to your configuration,
179 | and set `services.realtime-stt-server.enable`.
180 | You can also add the whisper-overlay package to your system or user,
181 | so you can start it with your desktop environment or window manager.
182 | 
183 | ```nix
184 | # This is a NixOS config module
185 | {
186 |   imports = [
187 |     inputs.whisper-overlay.nixosModules.default
188 |   ];
189 | 
190 |   # Also make sure to enable cuda support in nixpkgs, otherwise transcription will
191 |   # be painfully slow. But be prepared to let your computer build packages for 2-3 hours.
192 |   nixpkgs.config.cudaSupport = true;
193 | 
194 |   # Start the service and expose the port to your local network.
195 |   services.realtime-stt-server.enable = true;
196 |   services.realtime-stt-server.openFirewall = true;
197 | 
198 |   # If you are running this system-wide on your local machine,
199 |   # Add the whisper-overlay package so you can start the overlayit manually.
200 |   # Alternatively add it to the autostart of your display environment or window manager.
201 |   environment.systemPackages = [pkgs.whisper-overlay];
202 | }
203 | ```
204 | 
205 | </details>
206 | <details>
207 | <summary>
208 | 
209 | ### 🧰 Manually
210 | </summary>
211 | 
212 | First, install and start the server:
213 | 
214 | ```bash
215 | # Create virtualenv
216 | python -m venv venv
217 | source venv/bin/activate
218 | 
219 | # Install RealtimeSTT (fork)
220 | # Follow this for GPU support:
221 | # https://github.com/KoljaB/RealtimeSTT?tab=readme-ov-file#gpu-support-with-cuda-recommended
222 | git clone https://github.com/oddlama/RealtimeSTT
223 | cd RealtimeSTT
224 | pip install -r requirements.txt
225 | cd ..
226 | 
227 | # Run server script
228 | git clone https://github.com/oddlama/whisper-overlay
229 | python ./realtime-stt-server.py
230 | ```
231 | 
232 | Second, start the overlay by tunning the client from source:
233 | 
234 | ```bash
235 | # Clone repository (or reuse the previous checkout)
236 | git clone https://github.com/oddlama/whisper-overlay
237 | cargo build --release
238 | ./target/release/whisper-overlay overlay
239 | ```
240 | 
241 | </details>
242 | 
243 | ## 🌟 Waybar integration
244 | 
245 | The whisper-overlay natively supports a waybar status command to
246 | display the server status in your waybar.
247 | 
248 | Add this to your waybar config:
249 | 
250 | ```jsonc
251 | "custom/whisper_overlay": {
252 |     "escape": true,
253 |     "exec": "/path/to/whisper-overlay waybar-status",
254 |     "format": "{icon} {}",
255 |     "format-icons": {
256 |         "disconnected": "<span foreground='gray'></span>",
257 |         "connected": "<span foreground='#4ab0fa'></span>",
258 |         "connected-active": "<span foreground='red'></span>"
259 |     },
260 |     "return-type": "json",
261 |     "tooltip": true
262 | },
263 | ```
264 | 
265 | And instanciate the module somewhere:
266 | 
267 | ```jsonc
268 | "modules-left": [
269 |     // ...
270 |     "custom/whisper_overlay"
271 |     // ...
272 | ],
273 | ```
274 | 
275 | <details>
276 | <summary>
277 | 
278 | ### Nix: Home-Manager configuration for waybar integration with start and stop scripts
279 | </summary>
280 | 
281 | Here's how I'd recommend to use the waybar module, showing the current status as a colored dot
282 | while allowing you to toggle the server on and off with a right-click.
283 | 
284 | ```nix
285 | programs.waybar.settings.main."custom/whisper_overlay" = {
286 |   tooltip = true;
287 |   format = "{icon}";
288 |   format-icons = {
289 |     disconnected = "<span foreground='gray'></span>";
290 |     connected = "<span foreground='#4ab0fa'></span>";
291 |     connected-active = "<span foreground='red'></span>";
292 |   };
293 |   return-type = "json";
294 |   exec = "${lib.getExe pkgs.whisper-overlay} waybar-status";
295 |   on-click-right = lib.getExe (pkgs.writeShellApplication {
296 |     name = "toggle-realtime-stt-server";
297 |     runtimeInputs = [
298 |       pkgs.systemd
299 |       pkgs.libnotify
300 |     ];
301 |     text = ''
302 |       if systemctl --user is-active --quiet realtime-stt-server; then
303 |         systemctl --user stop realtime-stt-server.service
304 |         notify-send "Stopped realtime-stt-server" "⛔ Stopped" --transient || true
305 |       else
306 |         systemctl --user start realtime-stt-server.service
307 |         notify-send "Started realtime-stt-server" "✅ Started" --transient || true
308 |       fi
309 |     '';
310 |   });
311 |   escape = true;
312 | };
313 | ```
314 | 
315 | </details>
316 | 
317 | ## ❌ Limitations
318 | 
319 | #### Requires RealtimeSTT fork
320 | 
321 | Currently, you need to use my fork of [RealtimeSTT](https://github.com/oddlama/RealtimeSTT) which allows the client
322 | to read token probabilities and fixes some shutdown issues. Already requested this to be upstreamed,
323 | so hopefully this won't be required for long.
324 | 
325 | #### Single active client
326 | 
327 | The provided `realtime-stt-server` implementation allows you to host the server either locally on your machine, or on another machine
328 | in your network. Our end of the implementation is techincally ready for multiple clients, but due to the way `RealtimeSTT` works, it cannot process
329 | multiple requests simultaneously at this point in time. So you will have to wait for other clients to disconnect before your transcription can begin.
330 | 
331 | #### Wayland only
332 | 
333 | Currently, this project _requires_ the use of a wayland compositor that supports the layer-shell and virtual-keyboard-v1 protocol extensions.
334 | Thus it should work out-of-the-box on any wlroots based compositor (sway, ...) and on hyprland. X11 support is currently not planned.
335 | There is a branch with a partial implementation for X11, but getting GTK4 to create a reliable overlay window has proven to be hard and
336 | auto-type doesn't work properly with enigo (the rust library in use for virtual input). But I'm of course happy to accept contributions
337 | in that regard if someone knows how to address the remaining issues.
338 | 
339 | #### Global hotkeys via evdev
340 | 
341 | The global hotkey is detected using `evdev`, since I didn't manage to get the GlobalShortcuts desktop portal
342 | to work with windows using the layer-shell protocol ([related issue](https://github.com/bilelmoussaoui/ashpd/issues/213)).
343 | In the future this might change, but for now your user must be in the `input` group for this to work.
344 | 
345 | ## 📜 License
346 | 
347 | Licensed under the MIT license ([LICENSE](LICENSE) or <https://opensource.org/licenses/MIT>).
348 | Unless you explicitly state otherwise, any contribution intentionally
349 | submitted for inclusion in this project by you, shall be licensed as above, without any additional terms or conditions.
350 | 


--------------------------------------------------------------------------------
/docker-compose.yml:
--------------------------------------------------------------------------------
 1 | services:
 2 |   realtime-stt-server:
 3 |     build:
 4 |       context: .
 5 |       target: gpu # or cpu
 6 |     image: realtime-stt-server
 7 |     container_name: realtime-stt-server
 8 |     volumes:
 9 |       - cache:/root/.cache
10 |     ports:
11 |       - "7007:7007"
12 | 
13 |     # if 'gpu' target
14 |     deploy:
15 |       resources:
16 |         reservations:
17 |           devices:
18 |           - capabilities: ["gpu"]
19 | 
20 | volumes:
21 |   cache:
22 | 


--------------------------------------------------------------------------------
/flake.lock:
--------------------------------------------------------------------------------
  1 | {
  2 |   "nodes": {
  3 |     "devshell": {
  4 |       "inputs": {
  5 |         "flake-utils": "flake-utils",
  6 |         "nixpkgs": [
  7 |           "nixpkgs"
  8 |         ]
  9 |       },
 10 |       "locked": {
 11 |         "lastModified": 1717408969,
 12 |         "narHash": "sha256-Q0OEFqe35fZbbRPPRdrjTUUChKVhhWXz3T9ZSKmaoVY=",
 13 |         "owner": "numtide",
 14 |         "repo": "devshell",
 15 |         "rev": "1ebbe68d57457c8cae98145410b164b5477761f4",
 16 |         "type": "github"
 17 |       },
 18 |       "original": {
 19 |         "owner": "numtide",
 20 |         "repo": "devshell",
 21 |         "type": "github"
 22 |       }
 23 |     },
 24 |     "flake-compat": {
 25 |       "flake": false,
 26 |       "locked": {
 27 |         "lastModified": 1696426674,
 28 |         "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
 29 |         "owner": "edolstra",
 30 |         "repo": "flake-compat",
 31 |         "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
 32 |         "type": "github"
 33 |       },
 34 |       "original": {
 35 |         "owner": "edolstra",
 36 |         "repo": "flake-compat",
 37 |         "type": "github"
 38 |       }
 39 |     },
 40 |     "flake-parts": {
 41 |       "inputs": {
 42 |         "nixpkgs-lib": "nixpkgs-lib"
 43 |       },
 44 |       "locked": {
 45 |         "lastModified": 1717285511,
 46 |         "narHash": "sha256-iKzJcpdXih14qYVcZ9QC9XuZYnPc6T8YImb6dX166kw=",
 47 |         "owner": "hercules-ci",
 48 |         "repo": "flake-parts",
 49 |         "rev": "2a55567fcf15b1b1c7ed712a2c6fadaec7412ea8",
 50 |         "type": "github"
 51 |       },
 52 |       "original": {
 53 |         "owner": "hercules-ci",
 54 |         "repo": "flake-parts",
 55 |         "type": "github"
 56 |       }
 57 |     },
 58 |     "flake-utils": {
 59 |       "inputs": {
 60 |         "systems": "systems"
 61 |       },
 62 |       "locked": {
 63 |         "lastModified": 1701680307,
 64 |         "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
 65 |         "owner": "numtide",
 66 |         "repo": "flake-utils",
 67 |         "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
 68 |         "type": "github"
 69 |       },
 70 |       "original": {
 71 |         "owner": "numtide",
 72 |         "repo": "flake-utils",
 73 |         "type": "github"
 74 |       }
 75 |     },
 76 |     "gitignore": {
 77 |       "inputs": {
 78 |         "nixpkgs": [
 79 |           "pre-commit-hooks",
 80 |           "nixpkgs"
 81 |         ]
 82 |       },
 83 |       "locked": {
 84 |         "lastModified": 1709087332,
 85 |         "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
 86 |         "owner": "hercules-ci",
 87 |         "repo": "gitignore.nix",
 88 |         "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
 89 |         "type": "github"
 90 |       },
 91 |       "original": {
 92 |         "owner": "hercules-ci",
 93 |         "repo": "gitignore.nix",
 94 |         "type": "github"
 95 |       }
 96 |     },
 97 |     "nixpkgs": {
 98 |       "locked": {
 99 |         "lastModified": 1718714799,
100 |         "narHash": "sha256-FUZpz9rg3gL8NVPKbqU8ei1VkPLsTIfAJ2fdAf5qjak=",
101 |         "owner": "NixOS",
102 |         "repo": "nixpkgs",
103 |         "rev": "c00d587b1a1afbf200b1d8f0b0e4ba9deb1c7f0e",
104 |         "type": "github"
105 |       },
106 |       "original": {
107 |         "owner": "NixOS",
108 |         "ref": "nixos-unstable",
109 |         "repo": "nixpkgs",
110 |         "type": "github"
111 |       }
112 |     },
113 |     "nixpkgs-lib": {
114 |       "locked": {
115 |         "lastModified": 1717284937,
116 |         "narHash": "sha256-lIbdfCsf8LMFloheeE6N31+BMIeixqyQWbSr2vk79EQ=",
117 |         "type": "tarball",
118 |         "url": "https://github.com/NixOS/nixpkgs/archive/eb9ceca17df2ea50a250b6b27f7bf6ab0186f198.tar.gz"
119 |       },
120 |       "original": {
121 |         "type": "tarball",
122 |         "url": "https://github.com/NixOS/nixpkgs/archive/eb9ceca17df2ea50a250b6b27f7bf6ab0186f198.tar.gz"
123 |       }
124 |     },
125 |     "nixpkgs-stable": {
126 |       "locked": {
127 |         "lastModified": 1718447546,
128 |         "narHash": "sha256-JHuXsrC9pr4kA4n7LuuPfWFJUVlDBVJ1TXDVpHEuUgM=",
129 |         "owner": "NixOS",
130 |         "repo": "nixpkgs",
131 |         "rev": "842253bf992c3a7157b67600c2857193f126563a",
132 |         "type": "github"
133 |       },
134 |       "original": {
135 |         "owner": "NixOS",
136 |         "ref": "nixos-23.11",
137 |         "repo": "nixpkgs",
138 |         "type": "github"
139 |       }
140 |     },
141 |     "pre-commit-hooks": {
142 |       "inputs": {
143 |         "flake-compat": "flake-compat",
144 |         "gitignore": "gitignore",
145 |         "nixpkgs": [
146 |           "nixpkgs"
147 |         ],
148 |         "nixpkgs-stable": "nixpkgs-stable"
149 |       },
150 |       "locked": {
151 |         "lastModified": 1718879355,
152 |         "narHash": "sha256-RTyqP4fBX2MdhNuMP+fnR3lIwbdtXhyj7w7fwtvgspc=",
153 |         "owner": "cachix",
154 |         "repo": "pre-commit-hooks.nix",
155 |         "rev": "8cd35b9496d21a6c55164d8547d9d5280162b07a",
156 |         "type": "github"
157 |       },
158 |       "original": {
159 |         "owner": "cachix",
160 |         "repo": "pre-commit-hooks.nix",
161 |         "type": "github"
162 |       }
163 |     },
164 |     "root": {
165 |       "inputs": {
166 |         "devshell": "devshell",
167 |         "flake-parts": "flake-parts",
168 |         "nixpkgs": "nixpkgs",
169 |         "pre-commit-hooks": "pre-commit-hooks"
170 |       }
171 |     },
172 |     "systems": {
173 |       "locked": {
174 |         "lastModified": 1681028828,
175 |         "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
176 |         "owner": "nix-systems",
177 |         "repo": "default",
178 |         "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
179 |         "type": "github"
180 |       },
181 |       "original": {
182 |         "owner": "nix-systems",
183 |         "repo": "default",
184 |         "type": "github"
185 |       }
186 |     }
187 |   },
188 |   "root": "root",
189 |   "version": 7
190 | }
191 | 


--------------------------------------------------------------------------------
/flake.nix:
--------------------------------------------------------------------------------
 1 | {
 2 |   inputs = {
 3 |     devshell = {
 4 |       url = "github:numtide/devshell";
 5 |       inputs.nixpkgs.follows = "nixpkgs";
 6 |     };
 7 | 
 8 |     flake-parts.url = "github:hercules-ci/flake-parts";
 9 |     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
10 | 
11 |     pre-commit-hooks = {
12 |       url = "github:cachix/pre-commit-hooks.nix";
13 |       inputs.nixpkgs.follows = "nixpkgs";
14 |     };
15 |   };
16 | 
17 |   outputs = inputs:
18 |     inputs.flake-parts.lib.mkFlake {inherit inputs;} {
19 |       imports = [
20 |         ./nix/devshell.nix
21 |         ./nix/packages/realtime-stt-server.nix
22 |         ./nix/packages/whisper-overlay.nix
23 | 
24 |         # Derive the output overlay automatically from all packages that we define.
25 |         inputs.flake-parts.flakeModules.easyOverlay
26 |       ];
27 | 
28 |       systems = [
29 |         "x86_64-linux"
30 |         "aarch64-linux"
31 |       ];
32 | 
33 |       flake = {config, ...}: {
34 |         nixosModules.default = {
35 |           imports = [./nix/nixosModules/realtime-stt-server.nix];
36 |           nixpkgs.overlays = [config.overlays.default];
37 |         };
38 | 
39 |         homeManagerModules.default = {
40 |           imports = [./nix/homeManagerModules/realtime-stt-server.nix];
41 |           nixpkgs.overlays = [config.overlays.default];
42 |         };
43 |       };
44 | 
45 |       perSystem = {system, ...}: {
46 |         _module.args.pkgs = import inputs.nixpkgs {
47 |           inherit system;
48 |           config.allowUnfree = true;
49 |           #config.cudaSupport = true;
50 |         };
51 |       };
52 |     };
53 | }
54 | 


--------------------------------------------------------------------------------
/nix/devshell.nix:
--------------------------------------------------------------------------------
 1 | {inputs, ...}: {
 2 |   imports = [
 3 |     inputs.devshell.flakeModule
 4 |     inputs.pre-commit-hooks.flakeModule
 5 |   ];
 6 | 
 7 |   perSystem = {
 8 |     config,
 9 |     pkgs,
10 |     ...
11 |   }: {
12 |     pre-commit.settings.hooks = {
13 |       alejandra.enable = true;
14 |       deadnix.enable = true;
15 |       statix.enable = true;
16 |     };
17 | 
18 |     devshells.default = {
19 |       commands = [
20 |         {
21 |           package = pkgs.alejandra;
22 |           help = "Format nix code";
23 |         }
24 |         {
25 |           package = pkgs.statix;
26 |           help = "Lint nix code";
27 |         }
28 |         {
29 |           package = pkgs.deadnix;
30 |           help = "Find unused expressions in nix code";
31 |         }
32 |       ];
33 | 
34 |       devshell.startup.pre-commit.text = config.pre-commit.installationScript;
35 |     };
36 | 
37 |     # `nix fmt`
38 |     formatter = pkgs.alejandra;
39 |   };
40 | }
41 | 


--------------------------------------------------------------------------------
/nix/homeManagerModules/realtime-stt-server.nix:
--------------------------------------------------------------------------------
  1 | {
  2 |   config,
  3 |   lib,
  4 |   pkgs,
  5 |   ...
  6 | }: let
  7 |   inherit
  8 |     (lib)
  9 |     escapeShellArgs
 10 |     getExe
 11 |     mkEnableOption
 12 |     mkIf
 13 |     optionals
 14 |     mkOption
 15 |     mkPackageOption
 16 |     types
 17 |     ;
 18 | 
 19 |   cfg = config.services.realtime-stt-server;
 20 | in {
 21 |   options.services.realtime-stt-server = {
 22 |     enable = mkEnableOption "realtime-stt-server";
 23 |     autoStart = mkOption {
 24 |       type = types.bool;
 25 |       default = false;
 26 |       description = ''
 27 |         Automatically start the server when graphical-session.target is reached.
 28 |         Not enabled by default due to high VRAM memory allocation - it is probably
 29 |         better to start and stop this service on demand.
 30 |       '';
 31 |     };
 32 |     package = mkPackageOption pkgs "realtime-stt-server" {};
 33 | 
 34 |     host = mkOption {
 35 |       type = types.str;
 36 |       description = "Host to bind to";
 37 |       default = "localhost";
 38 |     };
 39 | 
 40 |     port = mkOption {
 41 |       type = types.port;
 42 |       default = 7007;
 43 |       description = "Port to bind to";
 44 |     };
 45 | 
 46 |     model = mkOption {
 47 |       type = types.nullOr types.str;
 48 |       default = null;
 49 |       description = "Main model used to generate the final transcription. Set to null to use default value.";
 50 |     };
 51 | 
 52 |     modelRealtime = mkOption {
 53 |       type = types.nullOr types.str;
 54 |       default = null;
 55 |       description = "Faster model used to generate live transcriptions. Set to null to use default value.";
 56 |     };
 57 | 
 58 |     language = mkOption {
 59 |       type = types.nullOr types.str;
 60 |       default = null;
 61 |       description = "Set the spoken language. Set to null to let the model auto-detect.";
 62 |     };
 63 | 
 64 |     extraOptions = mkOption {
 65 |       type = types.listOf types.str;
 66 |       default = [];
 67 |       example = ["--debug"];
 68 |       description = "Additional command-line arguments to pass to realtime-stt-server";
 69 |     };
 70 |   };
 71 | 
 72 |   config = mkIf cfg.enable {
 73 |     systemd.user.services.realtime-stt-server = {
 74 |       Install.WantedBy = mkIf cfg.autoStart ["graphical-session.target"];
 75 |       Unit = {
 76 |         Description = "A server for RealtimeSTT made to be used with whisper-overlay";
 77 |         PartOf = mkIf cfg.autoStart ["graphical-session.target"];
 78 |       };
 79 |       Service = {
 80 |         Restart = "on-failure";
 81 |         ExecStart =
 82 |           "${getExe cfg.package} "
 83 |           + escapeShellArgs (
 84 |             ["--host" cfg.host "--port" cfg.port]
 85 |             ++ optionals (cfg.model != null) ["--model" cfg.model]
 86 |             ++ optionals (cfg.modelRealtime != null) ["--model-realtime" cfg.modelRealtime]
 87 |             ++ optionals (cfg.language != null) ["--language" cfg.language]
 88 |             ++ cfg.extraOptions
 89 |           );
 90 |         Environment = [
 91 |           "HOME=%S/realtime-stt-server"
 92 |           "HF_HOME=%S/realtime-stt-server"
 93 |         ];
 94 |         WorkingDirectory = "%S/realtime-stt-server";
 95 |         StateDirectory = "realtime-stt-server";
 96 | 
 97 |         # Hardening
 98 |         #MemoryDenyWriteExecute = true;
 99 |         #PrivateTmp = true;     # Can't use as user service
100 |         #PrivateDevices = true; # Needs CUDA
101 |         #PrivateMounts = true;  # Can't use as user service
102 |         ProtectClock = true;
103 |         ProtectControlGroups = true;
104 |         #ProtectHome = true;    # We need our home
105 |         ProtectHostname = true;
106 |         ProtectKernelLogs = true;
107 |         ProtectKernelModules = true;
108 |         ProtectKernelTunables = true;
109 |         # ProtectProc = "invisible"; Needs /proc/cpuinfo
110 |         ProtectSystem = "strict";
111 |         RemoveIPC = true;
112 |         RestrictAddressFamilies = [
113 |           "AF_INET"
114 |           "AF_INET6"
115 |           "AF_UNIX"
116 |         ];
117 |         RestrictNamespaces = true;
118 |         RestrictRealtime = true;
119 |         RestrictSUIDSGID = true;
120 |         SystemCallArchitectures = "native";
121 |         SystemCallFilter = [
122 |           "@system-service"
123 |           "~@privileged"
124 |         ];
125 |         UMask = "0077";
126 |       };
127 |     };
128 |   };
129 | }
130 | 


--------------------------------------------------------------------------------
/nix/nixosModules/realtime-stt-server.nix:
--------------------------------------------------------------------------------
  1 | {
  2 |   config,
  3 |   lib,
  4 |   pkgs,
  5 |   ...
  6 | }: let
  7 |   inherit
  8 |     (lib)
  9 |     escapeShellArgs
 10 |     getExe
 11 |     mkEnableOption
 12 |     mkIf
 13 |     optionals
 14 |     mkOption
 15 |     mkPackageOption
 16 |     types
 17 |     ;
 18 | 
 19 |   cfg = config.services.realtime-stt-server;
 20 | in {
 21 |   options.services.realtime-stt-server = {
 22 |     enable = mkEnableOption "realtime-stt-server";
 23 |     package = mkPackageOption pkgs "realtime-stt-server" {};
 24 | 
 25 |     openFirewall = mkOption {
 26 |       type = types.bool;
 27 |       default = false;
 28 |       description = "Whether to open the relevant port for realtime-stt-server in your firewall";
 29 |     };
 30 | 
 31 |     host = mkOption {
 32 |       type = types.str;
 33 |       description = "Host to bind to";
 34 |       default = "localhost";
 35 |     };
 36 | 
 37 |     port = mkOption {
 38 |       type = types.port;
 39 |       default = 7007;
 40 |       description = "Port to bind to";
 41 |     };
 42 | 
 43 |     model = mkOption {
 44 |       type = types.nullOr types.str;
 45 |       default = null;
 46 |       description = "Main model used to generate the final transcription. Set to null to use default value.";
 47 |     };
 48 | 
 49 |     modelRealtime = mkOption {
 50 |       type = types.nullOr types.str;
 51 |       default = null;
 52 |       description = "Faster model used to generate live transcriptions. Set to null to use default value.";
 53 |     };
 54 | 
 55 |     language = mkOption {
 56 |       type = types.nullOr types.str;
 57 |       default = null;
 58 |       description = "Set the spoken language. Set to null to let the model auto-detect.";
 59 |     };
 60 | 
 61 |     extraOptions = mkOption {
 62 |       type = types.listOf types.str;
 63 |       default = [];
 64 |       example = ["--debug"];
 65 |       description = "Additional command-line arguments to pass to realtime-stt-server";
 66 |     };
 67 |   };
 68 | 
 69 |   config = mkIf cfg.enable {
 70 |     systemd.services.realtime-stt-server = {
 71 |       description = "A server for RealtimeSTT made to be used with whisper-overlay";
 72 |       wantedBy = ["multi-user.target"];
 73 |       after = ["network.target"];
 74 | 
 75 |       environment.HOME = "/var/lib/realtime-stt-server";
 76 |       environment.HF_HOME = "/var/lib/realtime-stt-server";
 77 |       serviceConfig = {
 78 |         Restart = "on-failure";
 79 |         ExecStart =
 80 |           "${getExe cfg.package} "
 81 |           + escapeShellArgs (
 82 |             ["--host" cfg.host "--port" cfg.port]
 83 |             ++ optionals (cfg.model != null) ["--model" cfg.model]
 84 |             ++ optionals (cfg.modelRealtime != null) ["--model-realtime" cfg.modelRealtime]
 85 |             ++ optionals (cfg.language != null) ["--language" cfg.language]
 86 |             ++ cfg.extraOptions
 87 |           );
 88 |         DynamicUser = true;
 89 |         User = "realtime-stt-server";
 90 |         Group = "realtime-stt-server";
 91 | 
 92 |         WorkingDirectory = "/var/lib/realtime-stt-server";
 93 |         StateDirectory = "realtime-stt-server";
 94 |         StateDirectoryMode = "0750";
 95 | 
 96 |         # Hardening
 97 |         CapabilityBoundingSet = "";
 98 |         LockPersonality = true;
 99 |         #MemoryDenyWriteExecute = true;
100 |         NoNewPrivileges = true;
101 |         PrivateUsers = true;
102 |         PrivateTmp = true;
103 |         #PrivateDevices = true; # Needs CUDA
104 |         PrivateMounts = true;
105 |         ProtectClock = true;
106 |         ProtectControlGroups = true;
107 |         ProtectHome = true;
108 |         ProtectHostname = true;
109 |         ProtectKernelLogs = true;
110 |         ProtectKernelModules = true;
111 |         ProtectKernelTunables = true;
112 |         # ProtectProc = "invisible"; Needs /proc/cpuinfo
113 |         ProtectSystem = "strict";
114 |         RemoveIPC = true;
115 |         RestrictAddressFamilies = [
116 |           "AF_INET"
117 |           "AF_INET6"
118 |           "AF_UNIX"
119 |         ];
120 |         RestrictNamespaces = true;
121 |         RestrictRealtime = true;
122 |         RestrictSUIDSGID = true;
123 |         SystemCallArchitectures = "native";
124 |         SystemCallFilter = [
125 |           "@system-service"
126 |           "~@privileged"
127 |         ];
128 |         UMask = "0077";
129 |       };
130 |     };
131 | 
132 |     networking.firewall.allowedTCPPorts = mkIf cfg.openFirewall [cfg.port];
133 |   };
134 | }
135 | 


--------------------------------------------------------------------------------
/nix/packages/realtime-stt-server.nix:
--------------------------------------------------------------------------------
 1 | {
 2 |   perSystem = {
 3 |     config,
 4 |     pkgs,
 5 |     lib,
 6 |     ...
 7 |   }: {
 8 |     overlayAttrs = {
 9 |       inherit (config.packages) realtime-stt-server;
10 |     };
11 | 
12 |     packages.realtime-stt = pkgs.python3Packages.callPackage ./realtime-stt.nix {};
13 |     packages.realtime-stt-server = pkgs.stdenv.mkDerivation {
14 |       pname = "realtime-stt-server";
15 |       inherit (config.packages.whisper-overlay) version;
16 | 
17 |       dontUnpack = true;
18 |       propagatedBuildInputs = [
19 |         (pkgs.python3.withPackages (_: [config.packages.realtime-stt]))
20 |       ];
21 | 
22 |       installPhase = ''
23 |         install -Dm755 ${../../realtime-stt-server.py} $out/bin/realtime-stt-server
24 |       '';
25 | 
26 |       meta = {
27 |         description = "A server for RealtimeSTT made to be used with whisper-overlay";
28 |         homepage = "https://github.com/oddlama/whisper-overlay";
29 |         license = lib.licenses.mit;
30 |         maintainers = with lib.maintainers; [oddlama];
31 |         mainProgram = "realtime-stt-server";
32 |       };
33 |     };
34 | 
35 |     devshells.default = {
36 |       packages = [
37 |         (pkgs.python3.withPackages (_: [config.packages.realtime-stt]))
38 |       ];
39 |     };
40 |   };
41 | }
42 | 


--------------------------------------------------------------------------------
/nix/packages/realtime-stt.nix:
--------------------------------------------------------------------------------
 1 | {
 2 |   lib,
 3 |   buildPythonPackage,
 4 |   fetchFromGitHub,
 5 |   setuptools,
 6 |   wheel,
 7 |   faster-whisper,
 8 |   pyaudio,
 9 |   scipy,
10 |   torch,
11 |   torchaudio,
12 |   webrtcvad,
13 | }:
14 | buildPythonPackage rec {
15 |   pname = "realtime-stt";
16 |   version = "0.1.16";
17 | 
18 |   src = fetchFromGitHub {
19 |     owner = "oddlama";
20 |     repo = "RealtimeSTT";
21 |     rev = "master";
22 |     hash = "sha256-64RE/aT5PxuFFUTvjNefqTlAKWG1fftKV0wcY/hFlcg=";
23 |   };
24 | 
25 |   nativeBuildInputs = [
26 |     setuptools
27 |     wheel
28 |   ];
29 | 
30 |   propagatedBuildInputs = [
31 |     faster-whisper
32 |     pyaudio
33 |     scipy
34 |     torch
35 |     torchaudio
36 |     webrtcvad
37 |   ];
38 | 
39 |   postPatch = ''
40 |     # Remove unneded modules
41 |     substituteInPlace RealtimeSTT/audio_recorder.py \
42 |       --replace-fail 'import pvporcupine' "" \
43 |       --replace-fail 'import halo' ""
44 |   '';
45 | 
46 |   preBuild = ''
47 |     cat > setup.py << EOF
48 |     from setuptools import setup
49 | 
50 |     setup(
51 |       name='realtime-stt',
52 |       packages=['RealtimeSTT'],
53 |       version='${version}',
54 |       install_requires=[
55 |           "PyAudio",
56 |           "faster-whisper",
57 |           #"pvporcupine",
58 |           "webrtcvad",
59 |           #"halo",
60 |           "torch",
61 |           "torchaudio",
62 |           "scipy",
63 |       ],
64 |     )
65 |     EOF
66 |   '';
67 | 
68 |   dontUseSetuptoolsCheck = true;
69 |   pythonImportsCheck = ["RealtimeSTT"];
70 | 
71 |   meta = {
72 |     description = "A robust, efficient, low-latency speech-to-text library with advanced voice activity detection, wake word activation and instant transcription";
73 |     homepage = "https://github.com/KoljaB/RealtimeSTT";
74 |     license = lib.licenses.mit;
75 |     maintainers = with lib.maintainers; [oddlama];
76 |   };
77 | }
78 | 


--------------------------------------------------------------------------------
/nix/packages/whisper-overlay.nix:
--------------------------------------------------------------------------------
 1 | {inputs, ...}: {
 2 |   perSystem = {
 3 |     config,
 4 |     lib,
 5 |     pkgs,
 6 |     ...
 7 |   }: let
 8 |     libraries = [
 9 |       pkgs.libxkbcommon
10 |     ];
11 | 
12 |     includes = [
13 |       pkgs.gtk4
14 |       pkgs.gtk4-layer-shell
15 |       pkgs.wayland
16 |       pkgs.pango
17 |       pkgs.glib
18 |       pkgs.cairo
19 |       pkgs.graphene
20 |       pkgs.gdk-pixbuf
21 |       pkgs.harfbuzz
22 |       pkgs.vulkan-loader
23 |       pkgs.alsa-lib
24 |     ];
25 |   in {
26 |     overlayAttrs = {
27 |       inherit (config.packages) whisper-overlay;
28 |     };
29 | 
30 |     packages.default = config.packages.whisper-overlay;
31 |     packages.whisper-overlay = pkgs.rustPlatform.buildRustPackage {
32 |       pname = "whisper-overlay";
33 |       inherit ((builtins.fromTOML (builtins.readFile ../../Cargo.toml)).package) version;
34 | 
35 |       src = ../../.;
36 |       cargoHash = "sha256-HBbQ14Kxx09qpC5Jwe6mMal0F4NJ+Zb2rl/YvClzVl4=";
37 | 
38 |       nativeBuildInputs = [
39 |         pkgs.pkg-config
40 |         pkgs.wrapGAppsHook4
41 |       ];
42 |       buildInputs = includes ++ libraries;
43 | 
44 |       meta = {
45 |         description = "A wayland overlay providing speech-to-text functionality for any application via a global push-to-talk hotkey ";
46 |         homepage = "https://github.com/oddlama/whisper-overlay";
47 |         license = lib.licenses.mit;
48 |         maintainers = with lib.maintainers; [oddlama];
49 |         mainProgram = "whisper-overlay";
50 |       };
51 |     };
52 | 
53 |     devshells.default = {
54 |       imports = [
55 |         "${inputs.devshell}/extra/language/c.nix"
56 |         "${inputs.devshell}/extra/language/rust.nix"
57 |       ];
58 | 
59 |       packages = [
60 |         pkgs.pkg-config
61 |         pkgs.rust-analyzer
62 |       ];
63 | 
64 |       language.c.libraries = libraries;
65 |       language.c.includes = includes;
66 | 
67 |       env = [
68 |         {
69 |           # This is what wrapGAppsHook4 would do. Without it, text rendering will be broken for some reason.
70 |           name = "XDG_DATA_DIRS";
71 |           prefix = pkgs.lib.concatStringsSep ":" [
72 |             "${pkgs.gsettings-desktop-schemas}/share/gsettings-schemas/${pkgs.gsettings-desktop-schemas.name}"
73 |             "${pkgs.gtk4}/share/gsettings-schemas/${pkgs.gtk4.name}"
74 |           ];
75 |         }
76 |       ];
77 |     };
78 |   };
79 | }
80 | 


--------------------------------------------------------------------------------
/realtime-stt-server.py:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/env python3
  2 | 
  3 | """
  4 | A server for RealtimeSTT made to be used with whisper-overlay.
  5 | """
  6 | 
  7 | import argparse
  8 | import json
  9 | import logging
 10 | import queue
 11 | import socket
 12 | import struct
 13 | import time
 14 | import sys
 15 | import threading
 16 | 
 17 | def send_message(sock, message):
 18 |     message_str = json.dumps(message)
 19 |     message_bytes = message_str.encode("utf-8")
 20 |     message_length = len(message_bytes)
 21 |     sock.sendall(struct.pack("!I", message_length))
 22 |     sock.sendall(message_bytes)
 23 | 
 24 | def recv_message(sock):
 25 |     length_bytes = sock.recv(4)
 26 |     if not length_bytes or len(length_bytes) == 0:
 27 |         return None
 28 |     message_length = struct.unpack("!I", length_bytes)[0]
 29 |     if message_length & 0x80000000 != 0:
 30 |         # Raw audio data
 31 |         message_length &= ~0x80000000
 32 |         message_bytes = sock.recv(message_length)
 33 |         return message_bytes
 34 | 
 35 |     message_bytes = sock.recv(message_length)
 36 |     message_str = message_bytes.decode("utf-8")
 37 |     return json.loads(message_str)
 38 | 
 39 | class Client:
 40 |     def __init__(self, tag, conn):
 41 |         self.tag = tag
 42 |         self.conn = conn
 43 |         self.thread = threading.current_thread()
 44 |         self.mode = None
 45 |         self.is_true_client = False
 46 |         self.waiting = False
 47 |         self.queue = queue.Queue()
 48 | 
 49 | clients = {}
 50 | active_client = None
 51 | model_lock = threading.Lock()
 52 | 
 53 | def publish(obj, client=None):
 54 |     msg = json.dumps(obj)
 55 |     if client is None:
 56 |         for c in clients.values():
 57 |             if c.mode == "status":
 58 |                 c.queue.put(msg)
 59 |     else:
 60 |         client.queue.put(msg)
 61 | 
 62 | def refresh_status(client=None):
 63 |     publish(dict(refresh_status=True), client=client)
 64 | 
 65 | def handle_client(conn, addr):
 66 |     global recorder
 67 |     global active_client
 68 |     tag = f"{addr[0]}:{addr[1]}"
 69 |     client = Client(tag, conn)
 70 |     clients[addr] = client
 71 | 
 72 |     try:
 73 |         logger.info(f'{tag} Connected to client')
 74 |         init = recv_message(conn)
 75 |         logger.info(f'{tag} Client requested mode {init["mode"]}')
 76 |         client.mode = init["mode"]
 77 |         client.is_true_client = init["mode"] == "stream"
 78 | 
 79 |         if init["mode"] == "status":
 80 |             refresh_status(client) # refresh once after startup
 81 | 
 82 |             while True:
 83 |                 message = json.loads(client.queue.get())
 84 | 
 85 |                 if "refresh_status" in message and message["refresh_status"] == True:
 86 |                     n_clients = len(list(filter(lambda x: x.is_true_client, clients.values())))
 87 |                     n_waiting = len(list(filter(lambda x: x.is_true_client and x.waiting, clients.values())))
 88 |                     status = {
 89 |                         "clients": n_clients,
 90 |                         "waiting": n_waiting,
 91 |                     }
 92 |                     send_message(conn, status)
 93 |                     client.queue.task_done()
 94 |         else:
 95 |             logger.info(f'{tag} Acquiring lock')
 96 |             client.waiting = True
 97 |             refresh_status()
 98 |             send_message(conn, dict(status="waiting for lock"))
 99 | 
100 |             with model_lock:
101 |                 active_client = client
102 |                 client.waiting = False
103 |                 refresh_status()
104 |                 send_message(conn, dict(status="lock acquired"))
105 |                 recorder.start()
106 | 
107 |                 def send_queue():
108 |                     try:
109 |                         while True:
110 |                             message = client.queue.get()
111 |                             if message is None:
112 |                                 return
113 |                             send_message(conn, message)
114 |                             client.queue.task_done()
115 |                     except (OSError, ConnectionError):
116 |                         logger.info(f"{tag} error in send queue: connection closed?")
117 | 
118 |                 sender_thread = threading.Thread(target=send_queue)
119 |                 sender_thread.daemon = True
120 |                 sender_thread.start()
121 | 
122 |                 try:
123 |                     while True:
124 |                         msg = recv_message(conn)
125 |                         if msg is None:
126 |                             break
127 | 
128 |                         if isinstance(msg, bytes):
129 |                             recorder.feed_audio(msg)
130 |                             continue
131 | 
132 |                         if "action" in msg and msg["action"] == "flush":
133 |                             logger.info(f"{tag} flushing on client request")
134 |                             # input some silence
135 |                             for i in range(10):
136 |                                 recorder.feed_audio(bytes(1000))
137 |                             recorder.stop()
138 |                             logger.info(f"{tag} flushed")
139 |                             continue
140 |                         else:
141 |                             logger.info(f"{tag} error in recv: invalid message: {msg}")
142 |                             continue
143 |                 except (OSError, ConnectionError):
144 |                     logger.info(f"{tag} error in recv: connection closed?")
145 |                 finally:
146 |                     client.queue.put(None)
147 |                     active_client = None
148 |                     recorder.stop()
149 |                     sender_thread.join()
150 |     except Exception as e:
151 |         import traceback
152 |         traceback.print_exc()
153 |         logger.error(f'{tag} Error handling client: {e}')
154 |     finally:
155 |         refresh_status()
156 |         del clients[addr]
157 |         conn.close()
158 |         logger.info(f'{tag} Connection closed')
159 | 
160 | if __name__ == "__main__":
161 |     logging.basicConfig(format="%(levelname)s %(message)s")
162 |     logger = logging.getLogger("realtime-stt-server")
163 |     logger.setLevel(logging.INFO)
164 | 
165 |     parser = argparse.ArgumentParser()
166 |     parser.add_argument("--host", type=str, default='localhost',
167 |         help="The host to listen on [default: 'localhost']")
168 |     parser.add_argument("--port", type=int, default=7007,
169 |         help="The port to listen on [default: 7007]")
170 |     parser.add_argument("--device", type=str, default="cuda",
171 |         help="Device to run the models on, defaults to cuda if available, else cpu [default: 'cuda']")
172 |     parser.add_argument("--model", type=str, default="large-v3",
173 |         help="Main model used to generate the final transcription [default: 'large-v3']")
174 |     parser.add_argument("--model-realtime", type=str, default="base",
175 |         help="Faster model used to generate live transcriptions [default: 'base']")
176 |     parser.add_argument("--language", type=str, default="",
177 |         help="Set the spoken language. Leave empty to auto-detect. [default: '']")
178 |     parser.add_argument("--debug", action="store_true",
179 |         help="Enable debug log output [default: unset]")
180 | 
181 |     args = parser.parse_args()
182 |     if args.debug:
183 |         logger.setLevel(logging.DEBUG)
184 |         logging.getLogger().setLevel(logging.DEBUG)
185 | 
186 |     # FIXME: workaround until we can update RealtimeSTT to support device params
187 |     if args.device == "cpu":
188 |         import torch
189 |         torch.cuda.is_available = lambda: False
190 | 
191 |     logger.info("Importing runtime")
192 |     from RealtimeSTT import AudioToTextRecorder
193 | 
194 |     def text_detected(ts):
195 |         text, segments = ts
196 |         global active_client
197 |         if active_client is not None:
198 |             segments = [x._asdict() for x in segments]
199 |             active_client.queue.put(dict(kind="realtime", text=text, segments=segments))
200 | 
201 |     recorder_ready = threading.Event()
202 |     recorder_config = {
203 |         'init_logging': False,
204 |         # FIXME: once fixed upstream 'device': args.device,
205 | 
206 |         'use_microphone': False,
207 |         'spinner': False,
208 |         'model': args.model,
209 |         'return_segments': True,
210 |         'language': args.language,
211 | 
212 |         'silero_sensitivity': 0.4,
213 |         'webrtc_sensitivity': 2,
214 |         'post_speech_silence_duration': 0.7,
215 |         'min_length_of_recording': 0.0,
216 |         'min_gap_between_recordings': 0,
217 | 
218 |         'enable_realtime_transcription': True,
219 |         'realtime_processing_pause': 0,
220 |         'realtime_model_type': args.model_realtime,
221 | 
222 |         'on_realtime_transcription_stabilized': text_detected,
223 |     }
224 | 
225 |     def recorder_thread():
226 |         global recorder
227 |         global active_client
228 |         logger.info("Initializing RealtimeSTT...")
229 |         recorder = AudioToTextRecorder(**recorder_config)
230 |         logger.info("AudioToTextRecorder ready")
231 |         recorder_ready.set()
232 |         try:
233 |             while not recorder.is_shut_down:
234 |                 text, segments = recorder.text()
235 |                 if text == "":
236 |                     continue
237 |                 if active_client is not None:
238 |                     segments = [x._asdict() for x in segments]
239 |                     active_client.queue.put(dict(kind="result", text=text, segments=segments))
240 |         except (OSError, EOFError) as e:
241 |             logger.info(f"recorder thread failed: {e}")
242 |             return
243 | 
244 |     recorder_thread = threading.Thread(target=recorder_thread)
245 |     recorder_thread.start()
246 |     recorder_ready.wait()
247 | 
248 |     logger.info(f'Starting server on {args.host}:{args.port}')
249 |     with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
250 |         s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
251 |         s.bind((args.host, args.port))
252 |         s.listen()
253 |         logger.info(f'Server ready to accept connections')
254 | 
255 |         try:
256 |             while True:
257 |                 # Accept incoming connection
258 |                 conn, addr = s.accept()
259 |                 conn.setblocking(True)
260 | 
261 |                 # Create a new thread to handle the client
262 |                 client_thread = threading.Thread(target=handle_client, args=(conn, addr))
263 |                 client_thread.daemon = True # die with main thread
264 |                 client_thread.start()
265 | 
266 |                 # Note: The main thread continues to accept new connections
267 |         except KeyboardInterrupt:
268 |             logger.info(f'Received shutdown request')
269 | 
270 |         for c in clients.values():
271 |             try:
272 |                 c.conn.close()
273 |             except (OSError, ConnectionError):
274 |                 pass
275 |         try:
276 |             s.close()
277 |         except (OSError, ConnectionError):
278 |             pass
279 | 
280 |         recorder.shutdown()
281 | 
282 |     logger.info('Server terminated')
283 | 


--------------------------------------------------------------------------------
/src/app.rs:
--------------------------------------------------------------------------------
  1 | use color_eyre::eyre::{bail, Context, Result};
  2 | use cpal::traits::{DeviceTrait, HostTrait, StreamTrait};
  3 | use futures_util::StreamExt;
  4 | use gdk::glib::ExitCode;
  5 | use gdk_wayland::{prelude::*, WaylandSurface};
  6 | use gtk::cairo::{RectangleInt, Region};
  7 | use gtk::gdk::Display;
  8 | use gtk::{glib, Application, ApplicationWindow, Label};
  9 | use gtk::{prelude::*, CssProvider};
 10 | use gtk_layer_shell::{Layer, LayerShell};
 11 | use serde::Deserialize;
 12 | use serde_json::json;
 13 | use std::path::PathBuf;
 14 | use std::sync::{Arc, Mutex};
 15 | use std::time::{Duration, SystemTime};
 16 | use tokio::net::tcp::{OwnedReadHalf, OwnedWriteHalf};
 17 | use tokio::net::TcpStream;
 18 | use tokio::sync::{mpsc, watch};
 19 | use tokio::task::JoinHandle;
 20 | use tokio_util::codec::LengthDelimitedCodec;
 21 | 
 22 | use crate::cli::{Command, ConnectionOpts};
 23 | use crate::hotkeys::HotkeyEvent;
 24 | use crate::keyboard::spawn_virtual_keyboard;
 25 | use crate::runtime;
 26 | use crate::util::{recv_message, send_audio_data, send_message};
 27 | 
 28 | const APP_ID: &str = "org.oddlama.whisper-overlay";
 29 | 
 30 | #[derive(Debug)]
 31 | pub enum UiAction {
 32 |     ModelResult(serde_json::Value),
 33 |     Disconnected(Option<String>),
 34 |     Connecting,
 35 |     Connected,
 36 |     Locking,
 37 |     HideWindow,
 38 |     ShowWindow,
 39 | }
 40 | 
 41 | #[derive(Debug, PartialEq, Eq, Copy, Clone)]
 42 | pub enum ConnectionState {
 43 |     Connected,
 44 |     Disconnected,
 45 | }
 46 | 
 47 | #[derive(Debug, Deserialize)]
 48 | pub struct Word {
 49 |     #[allow(unused)]
 50 |     begin: f32,
 51 |     #[allow(unused)]
 52 |     end: f32,
 53 |     word: String,
 54 |     probability: f32,
 55 | }
 56 | 
 57 | #[derive(Debug, Deserialize)]
 58 | pub struct Segment {
 59 |     words: Vec<Word>,
 60 | }
 61 | 
 62 | #[derive(Debug, Deserialize)]
 63 | pub struct ModelResult {
 64 |     kind: String,
 65 |     #[allow(unused)]
 66 |     text: String,
 67 |     segments: Vec<Segment>,
 68 | }
 69 | 
 70 | async fn connect_whisper(
 71 |     connection_opts: &ConnectionOpts,
 72 | ) -> Result<(OwnedReadHalf, OwnedWriteHalf)> {
 73 |     println!("Connecting to {}", connection_opts.address);
 74 |     let (socket_read, mut socket_write) = TcpStream::connect(&connection_opts.address)
 75 |         .await?
 76 |         .into_split();
 77 |     println!("Connected to {}", connection_opts.address);
 78 | 
 79 |     send_message(&mut socket_write, json!({"mode": "stream"})).await?;
 80 |     Ok((socket_read, socket_write))
 81 | }
 82 | 
 83 | async fn set_disconnect_status(ui_sender: &mpsc::Sender<UiAction>, message: &serde_json::Value) {
 84 |     let text = if let Some(status) = message.get("status").and_then(|x| x.as_str()) {
 85 |         status.to_string()
 86 |     } else {
 87 |         message.to_string()
 88 |     };
 89 |     ui_sender
 90 |         .send(UiAction::Disconnected(Some(text)))
 91 |         .await
 92 |         .unwrap();
 93 | }
 94 | 
 95 | async fn handle_connection(
 96 |     mut connection_receiver: watch::Receiver<ConnectionState>,
 97 |     ui_sender: mpsc::Sender<UiAction>,
 98 |     connection_opts: ConnectionOpts,
 99 | ) {
100 |     ui_sender.send(UiAction::Disconnected(None)).await.unwrap();
101 | 
102 |     let bytes = Arc::new(Mutex::new(Vec::<u8>::new()));
103 |     let bytes_2 = bytes.clone();
104 |     let (audio_tx, mut audio_rx) = watch::channel(());
105 |     let (audio_shutdown_tx, audio_shutdown_rx) = std::sync::mpsc::channel();
106 |     let audio_active = Arc::new(Mutex::new(false));
107 |     let audio_active_2 = audio_active.clone();
108 | 
109 |     let audio_thread = std::thread::spawn(move || {
110 |         let host = cpal::default_host();
111 |         let device = host
112 |             .default_input_device()
113 |             .expect("No input device available");
114 | 
115 |         println!("Input device: {}", device.name().unwrap());
116 | 
117 |         let config = cpal::StreamConfig {
118 |             channels: 1,
119 |             sample_rate: cpal::SampleRate(16000),
120 |             buffer_size: cpal::BufferSize::Default,
121 |         };
122 | 
123 |         let err_fn = move |err| {
124 |             eprintln!("an error occurred on the audio stream: {}", err);
125 |         };
126 | 
127 |         let stream = device
128 |             .build_input_stream(
129 |                 &config,
130 |                 move |data: &[i16], _: &_| {
131 |                     if !*audio_active_2.lock().expect("Could not lock audio stop") {
132 |                         // BUG: https://github.com/RustAudio/cpal/issues/771
133 |                         return;
134 |                     }
135 |                     bytes_2
136 |                         .lock()
137 |                         .expect("Could not lock mutex to write audio data")
138 |                         .extend_from_slice(bytemuck::cast_slice(data));
139 |                     let _ = audio_tx.send(());
140 |                 },
141 |                 err_fn,
142 |                 None,
143 |             )
144 |             .expect("Failed to build audio input stream");
145 | 
146 |         stream.play().expect("Failed to start audio stream");
147 |         let _ = audio_shutdown_rx.recv();
148 |     });
149 | 
150 |     loop {
151 |         {
152 |             if connection_receiver.changed().await.is_err() {
153 |                 break;
154 |             }
155 | 
156 |             // Wait until we should connect
157 |             let desired_state = *connection_receiver.borrow_and_update();
158 |             match desired_state {
159 |                 ConnectionState::Connected => {
160 |                     ui_sender.send(UiAction::ShowWindow).await.unwrap();
161 |                 }
162 |                 ConnectionState::Disconnected => {
163 |                     ui_sender.send(UiAction::HideWindow).await.unwrap();
164 |                     continue;
165 |                 }
166 |             }
167 | 
168 |             ui_sender.send(UiAction::Connecting).await.unwrap();
169 |             let (mut socket_read, mut socket_write) = match connect_whisper(&connection_opts).await
170 |             {
171 |                 Ok(s) => s,
172 |                 Err(e) => {
173 |                     eprintln!("Failed to connect to {}: {}", connection_opts.address, e);
174 |                     ui_sender
175 |                         .send(UiAction::Disconnected(Some(e.to_string())))
176 |                         .await
177 |                         .unwrap();
178 |                     continue;
179 |                 }
180 |             };
181 | 
182 |             match recv_message(&mut socket_read).await {
183 |                 Ok(message) => {
184 |                     if message.get("status") != Some(&json!("waiting for lock")) {
185 |                         eprintln!("error: received unexpected message: {}", message);
186 |                         set_disconnect_status(&ui_sender, &message).await;
187 |                         continue;
188 |                     }
189 |                 }
190 |                 Err(e) => {
191 |                     eprintln!("could not receive message from socket: {}", e);
192 |                     ui_sender
193 |                         .send(UiAction::Disconnected(Some(e.to_string())))
194 |                         .await
195 |                         .unwrap();
196 |                     continue;
197 |                 }
198 |             }
199 | 
200 |             ui_sender.send(UiAction::Locking).await.unwrap();
201 | 
202 |             match recv_message(&mut socket_read).await {
203 |                 Ok(message) => {
204 |                     if message.get("status") != Some(&json!("lock acquired")) {
205 |                         eprintln!("error: received unexpected message: {}", message);
206 |                         set_disconnect_status(&ui_sender, &message).await;
207 |                         continue;
208 |                     }
209 |                 }
210 |                 Err(e) => {
211 |                     eprintln!("could not receive message from socket: {}", e);
212 |                     ui_sender
213 |                         .send(UiAction::Disconnected(Some(e.to_string())))
214 |                         .await
215 |                         .unwrap();
216 |                     continue;
217 |                 }
218 |             }
219 | 
220 |             ui_sender.send(UiAction::Connected).await.unwrap();
221 | 
222 |             let (shutdown_tx, mut shutdown_rx) = watch::channel(());
223 |             // Start audio thread
224 |             *audio_active.lock().expect("Could not lock audio stop") = true;
225 | 
226 |             let mut shutdown_timer: Option<JoinHandle<()>> = None;
227 |             let mut read_message_frame = LengthDelimitedCodec::builder()
228 |                 .length_field_offset(0) // default value
229 |                 .length_field_length(4)
230 |                 .length_adjustment(0) // default value
231 |                 .num_skip(4) // skip the first 4 bytes
232 |                 .new_read(socket_read);
233 | 
234 |             loop {
235 |                 tokio::select! {
236 |                     message = read_message_frame.next() => {
237 |                         let Some(message) = message else {
238 |                             continue;
239 |                         };
240 | 
241 |                         let message: Result<serde_json::Value> = message.wrap_err("Failed to read next message")
242 |                             .and_then(|x| String::from_utf8(x.to_vec()).wrap_err("Failed to convert message to utf8"))
243 |                             .and_then(|x| serde_json::from_str(&x).wrap_err("Failed to parse json"));
244 | 
245 |                         match message {
246 |                             Ok(message) => {
247 |                                 if message.get("segments").is_some() {
248 |                                     if message.get("kind") != Some(&json!("result")) {
249 |                                         // If this is a result message, and we have a running shutdown timer
250 |                                         // (i.e. we want to disconnect), we use this as the final result.
251 |                                         if let Some(ref timer) = shutdown_timer {
252 |                                             timer.abort();
253 |                                             shutdown_timer = None;
254 |                                             let _ = shutdown_tx.send(());
255 |                                             println!("Received final result for this session in time, signalling shutdown");
256 |                                         }
257 |                                     }
258 |                                     ui_sender.send(UiAction::ModelResult(message)).await.unwrap();
259 |                                 } else {
260 |                                     eprintln!("ignoring unsolicited message: {}", message.to_string());
261 |                                 }
262 |                             },
263 |                             Err(e) => {
264 |                                 eprintln!("could not receive message from socket: {:#}", e);
265 |                                 ui_sender
266 |                                     .send(UiAction::Disconnected(Some(e.to_string())))
267 |                                     .await
268 |                                     .unwrap();
269 |                                 break;
270 |                             },
271 |                         }
272 |                     }
273 |                     _ = shutdown_rx.changed() => {
274 |                         println!("Ready to disconnect.");
275 |                         // Processing is finished
276 |                         shutdown_rx.mark_unchanged(); // Mark state seen
277 |                         ui_sender.send(UiAction::Disconnected(None)).await.unwrap();
278 |                         break;
279 |                     }
280 |                     _ = audio_rx.changed() => {
281 |                         audio_rx.mark_unchanged(); // Mark state seen
282 |                         let data = std::mem::take(&mut *bytes.lock().expect("Could not lock mutex to read audio data"));
283 | 
284 |                         if let Err(e) = send_audio_data(&mut socket_write, &data).await {
285 |                             eprintln!("could not write audio data to socket: {}", e);
286 |                             ui_sender
287 |                                 .send(UiAction::Disconnected(Some(e.to_string())))
288 |                                 .await
289 |                                 .unwrap();
290 |                             break;
291 |                         }
292 |                     }
293 |                     _ = connection_receiver.changed() => {
294 |                         // Wait until we should disconnect
295 |                         if *connection_receiver.borrow_and_update() == ConnectionState::Disconnected {
296 |                             println!("Done, notifying server to finish...");
297 |                             // Pause audio thread
298 |                             *audio_active.lock().expect("Could not lock audio stop") = false;
299 | 
300 |                             // Don't disconnect immediately, instead instruct the server to flush
301 |                             if let Err(e) = send_message(&mut socket_write, json!({"action": "flush"})).await {
302 |                                 eprintln!("could not send flush action to socket: {}", e);
303 |                                 ui_sender
304 |                                     .send(UiAction::Disconnected(Some(e.to_string())))
305 |                                     .await
306 |                                     .unwrap();
307 |                                 break;
308 |                             }
309 | 
310 |                             // If the server fails to respond within a short timeframe, we will force-kill.
311 |                             let shutdown_tx_2 = shutdown_tx.clone();
312 |                             let timer = runtime().spawn(async move {
313 |                                 tokio::time::sleep(Duration::from_millis(2000)).await;
314 |                                 println!("Server has not responded to flush, forcing disconnect now.");
315 |                                 let _ = shutdown_tx_2.send(());
316 |                             });
317 |                             shutdown_timer = Some(timer);
318 |                         } else {
319 |                             // If the client wants to reconnect, cancel any running disconnect timers
320 |                             if let Some(ref timer) = shutdown_timer {
321 |                                 timer.abort();
322 |                                 shutdown_timer = None;
323 |                             }
324 |                             // Restart audio thread
325 |                             *audio_active.lock().expect("Could not lock audio stop") = true;
326 |                             println!("Staying connected due to user request...");
327 |                         }
328 |                     }
329 |                 };
330 |             }
331 | 
332 |             println!("Disconnecting.");
333 |         }
334 | 
335 |         // Keep the window open for another 4 seconds if no other event takes priority
336 |         tokio::select! {
337 |             _ = tokio::time::sleep(Duration::from_millis(4000)) => {
338 |                 ui_sender.send(UiAction::HideWindow).await.unwrap();
339 |             },
340 |             _ = connection_receiver.changed() => {
341 |                 connection_receiver.mark_changed();
342 |                 // Early break so the request can be prioritized
343 |             }
344 |         };
345 | 
346 |         println!("Waiting for next connection request");
347 |     }
348 | 
349 |     // Stop and join audio thread
350 |     let _ = audio_shutdown_tx.send(());
351 |     audio_thread.join().expect("Could not join audio_thread");
352 | }
353 | 
354 | async fn handle_hotkey(
355 |     mut hotkey_receiver: mpsc::Receiver<HotkeyEvent>,
356 |     connection_sender: watch::Sender<ConnectionState>,
357 | ) {
358 |     while let Some(event) = hotkey_receiver.recv().await {
359 |         match event {
360 |             HotkeyEvent::Pressed => {
361 |                 let _ = connection_sender.send(ConnectionState::Connected);
362 |                 // window will be hidden as soon as connection task is ready
363 |             }
364 |             HotkeyEvent::Released => {
365 |                 let _ = connection_sender.send(ConnectionState::Disconnected);
366 |                 // window will be hidden as soon as transcription task is finished
367 |             }
368 |         }
369 |     }
370 | }
371 | 
372 | pub fn launch_app(opts: Command) -> Result<()> {
373 |     // Create a new application
374 |     let app = Application::builder().application_id(APP_ID).build();
375 | 
376 |     let Command::Overlay { style, .. } = opts.clone() else {
377 |         bail!("got invalid command options");
378 |     };
379 | 
380 |     // Connect to signals
381 |     app.connect_startup(move |_| load_css(style.clone()));
382 |     app.connect_activate(move |app| build_ui(app, opts.clone()));
383 | 
384 |     // Run the application
385 |     let exit_code = app.run_with_args::<&str>(&[]);
386 |     if exit_code != ExitCode::SUCCESS {
387 |         bail!("Could not launch gtk application: {:?}", exit_code);
388 |     };
389 | 
390 |     Ok(())
391 | }
392 | 
393 | fn load_css(style: Option<PathBuf>) {
394 |     // Load the CSS file and add it to the provider
395 |     let provider = CssProvider::new();
396 |     if let Some(path) = style {
397 |         provider.load_from_path(path);
398 |     } else {
399 |         provider.load_from_string(include_str!("style.css"));
400 |     }
401 | 
402 |     // Add the provider to the default screen
403 |     gtk::style_context_add_provider_for_display(
404 |         &Display::default().expect("Could not connect to a display."),
405 |         &provider,
406 |         gtk::STYLE_PROVIDER_PRIORITY_APPLICATION,
407 |     );
408 | }
409 | 
410 | fn build_ui(app: &Application, opts: Command) {
411 |     let Command::Overlay {
412 |         connection_opts,
413 |         hotkey,
414 |         ..
415 |     } = opts
416 |     else {
417 |         panic!("build_ui() got invalid command options");
418 |     };
419 | 
420 |     let main_box = gtk::Box::builder()
421 |         .orientation(gtk::Orientation::Vertical)
422 |         .spacing(5)
423 |         .can_target(false)
424 |         .can_focus(false)
425 |         .focus_on_click(false)
426 |         .build();
427 |     main_box.add_css_class("main-box");
428 | 
429 |     let live_text = Label::builder()
430 |         .wrap(true)
431 |         .wrap_mode(gdk::pango::WrapMode::WordChar)
432 |         .justify(gtk::Justification::Left)
433 |         .halign(gtk::Align::Start)
434 |         .can_target(false)
435 |         .can_focus(false)
436 |         .focus_on_click(false)
437 |         .build();
438 |     live_text.add_css_class("live-text");
439 |     live_text.add_tick_callback(move |widget, _| {
440 |         widget.queue_draw();
441 |         glib::ControlFlow::Continue
442 |     });
443 |     main_box.append(&live_text);
444 | 
445 |     let status_label = Label::builder()
446 |         .halign(gtk::Align::Start)
447 |         .can_target(false)
448 |         .can_focus(false)
449 |         .focus_on_click(false)
450 |         .build();
451 |     status_label.add_css_class("connection-status");
452 |     main_box.append(&status_label);
453 | 
454 |     // Create a new window and present it
455 |     let window = ApplicationWindow::builder()
456 |         .application(app)
457 |         .title("Whisper Overlay")
458 |         .decorated(false)
459 |         .focus_on_click(false)
460 |         .resizable(false)
461 |         .can_target(false)
462 |         .focusable(false)
463 |         .default_width(1600)
464 |         .default_height(0)
465 |         .child(&main_box)
466 |         .build();
467 | 
468 |     window.init_layer_shell();
469 |     window.set_layer(Layer::Overlay);
470 |     window.set_keyboard_mode(gtk_layer_shell::KeyboardMode::None);
471 |     window.set_anchor(gtk_layer_shell::Edge::Bottom, true);
472 |     window.set_margin(gtk_layer_shell::Edge::Bottom, 200);
473 |     window.set_namespace("whisper-overlay");
474 | 
475 |     window.connect_realize(|window| {
476 |         let wayland_surface = window.surface().and_downcast::<WaylandSurface>().unwrap();
477 |         wayland_surface.set_input_region(&Region::create_rectangle(&RectangleInt::new(0, 0, 0, 0)));
478 |         window.set_visible(false);
479 |     });
480 | 
481 |     window.present();
482 | 
483 |     let (ui_sender, mut ui_receiver) = mpsc::channel(64);
484 |     let (connection_sender, connection_receiver) = watch::channel(ConnectionState::Disconnected);
485 |     let (hotkey_sender, hotkey_receiver) = mpsc::channel(64);
486 |     let (virtual_keyboard_sender, virtual_keyboard_receiver) = mpsc::channel(64);
487 | 
488 |     // Spawn connection manager
489 |     runtime().spawn(
490 |         glib::clone!(@strong connection_receiver, @strong ui_sender => async move {
491 |             handle_connection(connection_receiver, ui_sender, connection_opts.clone()).await;
492 |         }),
493 |     );
494 | 
495 |     // Spawn hotkey detector
496 |     runtime().spawn(glib::clone!(@strong hotkey_sender => async move {
497 |         crate::hotkeys::register_and_watch(hotkey_sender, hotkey).await;
498 |     }));
499 | 
500 |     // Spawn hotkey processor
501 |     runtime().spawn(glib::clone!(@strong connection_sender => async move {
502 |         handle_hotkey(hotkey_receiver, connection_sender).await;
503 |     }));
504 | 
505 |     spawn_virtual_keyboard(virtual_keyboard_receiver).expect("Failed to spawn virutal keyboard");
506 | 
507 |     // Ui updater
508 |     glib::spawn_future_local(async move {
509 |         let keep_duration = Duration::from_millis(6000);
510 |         let mut line_history: Vec<(SystemTime, String)> = vec![];
511 | 
512 |         let gradient = colorgrad::CustomGradient::new()
513 |             .html_colors(&[
514 |                 "#fe0000", "#fb3209", "#f74811", "#f35918", "#ef671e", "#ea7423", "#e67f28",
515 |                 "#e18a2c", "#dc9430", "#d79e34", "#d1a738", "#cbb03b", "#c4b93d", "#bcc23e",
516 |                 "#b2cc3d", "#a6d53a", "#97df36", "#82e92e", "#62f321", "#00ff00",
517 |             ])
518 |             .build()
519 |             .expect("Could not build color gradient");
520 | 
521 |         while let Some(ui_action) = ui_receiver.recv().await {
522 |             match ui_action {
523 |                 UiAction::ModelResult(value) => {
524 |                     match serde_json::from_value::<ModelResult>(value) {
525 |                         Ok(res) => {
526 |                             let now = SystemTime::now();
527 | 
528 |                             // Expire old history
529 |                             line_history.retain(|&(time, _)| {
530 |                                 now.duration_since(time)
531 |                                     .map_or(false, |x| x <= keep_duration)
532 |                             });
533 | 
534 |                             let mut to_type = "".to_string();
535 |                             let mut line_markup = "".to_string();
536 |                             let mut markup = line_history
537 |                                 .iter()
538 |                                 .map(|(_, markup)| markup)
539 |                                 .cloned()
540 |                                 .collect::<Vec<String>>()
541 |                                 .join("\n");
542 | 
543 |                             for (si, segment) in res.segments.iter().enumerate() {
544 |                                 if si != 0 {
545 |                                     line_markup += "\n";
546 |                                 }
547 | 
548 |                                 for (wi, word) in segment.words.iter().enumerate() {
549 |                                     let color = gradient.at(word.probability.into());
550 |                                     let word = if wi == 0 {
551 |                                         word.word.trim_start()
552 |                                     } else {
553 |                                         &word.word
554 |                                     };
555 | 
556 |                                     //let rgba = color.to_rgba8();
557 |                                     //print!("{}", word.color(Rgb(rgba[0], rgba[1], rgba[2])));
558 |                                     //let _ = std::io::stdout().flush();
559 | 
560 |                                     to_type += &word;
561 |                                     line_markup += &format!(
562 |                                         "<span color=\"{fg}\">{text}</span>",
563 |                                         fg = color.to_hex_string(),
564 |                                         text = glib::markup_escape_text(word)
565 |                                     );
566 |                                 }
567 | 
568 |                                 to_type = to_type.trim_end().to_string() + "\n";
569 |                             }
570 | 
571 |                             if !markup.is_empty() {
572 |                                 markup += "\n";
573 |                             }
574 |                             markup += &line_markup;
575 |                             live_text.set_markup(&markup);
576 | 
577 |                             // Add line to history if we have a result
578 |                             if res.kind == "result" {
579 |                                 if !to_type.is_empty() {
580 |                                     let _ = virtual_keyboard_sender.send(to_type).await;
581 |                                 }
582 |                                 line_history.push((now, line_markup))
583 |                             }
584 |                         }
585 |                         Err(e) => eprintln!("error: ignoring invalid model result data: {e}"),
586 |                     }
587 |                 }
588 |                 UiAction::HideWindow => {
589 |                     window.set_visible(false);
590 |                     window.queue_draw();
591 |                     live_text.set_markup("");
592 |                 }
593 |                 UiAction::ShowWindow => {
594 |                     // Just don't ask, this is not an oversight!
595 |                     // If the window is not toggled, on, off, on, it won't show the first time.
596 |                     // This is somehow related to hiding the window in connect_realize.
597 |                     window.set_visible(true);
598 |                     window.set_visible(false);
599 |                     window.set_visible(true);
600 |                     window.queue_draw();
601 |                     status_label.queue_draw();
602 |                 }
603 |                 UiAction::Disconnected(reason) => {
604 |                     let mut message = "<span color='gray'></span> Disconnected".to_string();
605 |                     if let Some(reason) = reason {
606 |                         message += &format!(" <span color='gray'>{}</span>", reason);
607 |                     }
608 |                     status_label.set_markup(&message);
609 |                     status_label.queue_draw();
610 |                 }
611 |                 UiAction::Connecting => {
612 |                     status_label.set_markup("<span color='yellow'></span> Connecting");
613 |                     status_label.queue_draw();
614 |                 }
615 |                 UiAction::Locking => {
616 |                     status_label.set_markup("<span color='orange'></span> Waiting for model lock");
617 |                     status_label.queue_draw();
618 |                 }
619 |                 UiAction::Connected => {
620 |                     status_label.set_markup("<span color='#4ab0fa'></span> Connected");
621 |                     status_label.queue_draw();
622 |                 }
623 |             }
624 |         }
625 |     });
626 | }
627 | 


--------------------------------------------------------------------------------
/src/cli.rs:
--------------------------------------------------------------------------------
 1 | use clap::{Args, Parser, Subcommand};
 2 | use std::path::PathBuf;
 3 | 
 4 | #[derive(Parser)]
 5 | #[command(version, about)]
 6 | pub struct Cli {
 7 |     #[clap(subcommand)]
 8 |     pub command: Command,
 9 | }
10 | 
11 | #[derive(Debug, Subcommand, Clone)]
12 | pub enum Command {
13 |     WaybarStatus {
14 |         #[clap(flatten)]
15 |         connection_opts: ConnectionOpts,
16 |     },
17 |     Overlay {
18 |         #[clap(flatten)]
19 |         connection_opts: ConnectionOpts,
20 | 
21 |         /// An optional stylesheet for the overlay, which replaces the internal style.
22 |         #[arg(short, short, long, default_value=None)]
23 |         style: Option<PathBuf>,
24 | 
25 |         /// Specifies the hotkey to activate voice input. You can use any
26 |         /// key or button name from [evdev::Key](https://docs.rs/evdev/latest/evdev/struct.Key.html)
27 |         #[arg(long, default_value="KEY_RIGHTCTRL")]
28 |         hotkey: String,
29 |     },
30 | }
31 | 
32 | #[derive(Debug, Args, Clone)]
33 | pub struct ConnectionOpts {
34 |     /// The address of the the whisper streaming instance (host:port)
35 |     #[clap(short, long, default_value="localhost:7007")]
36 |     pub address: String,
37 | }
38 | 


--------------------------------------------------------------------------------
/src/hotkeys.rs:
--------------------------------------------------------------------------------
  1 | use std::{
  2 |     collections::HashMap,
  3 |     path::{Path, PathBuf},
  4 |     str::FromStr,
  5 |     time::Duration,
  6 | };
  7 | 
  8 | use color_eyre::eyre::Result;
  9 | use evdev::{Device, InputEventKind, Key};
 10 | use gtk::glib;
 11 | use notify::{event::CreateKind, EventKind, RecommendedWatcher, RecursiveMode, Watcher};
 12 | use tokio::sync::mpsc::{self, channel};
 13 | 
 14 | use crate::runtime;
 15 | 
 16 | #[derive(Debug)]
 17 | pub enum HotkeyEvent {
 18 |     Pressed,
 19 |     Released,
 20 | }
 21 | 
 22 | pub async fn evdev_listen_device(
 23 |     sender: mpsc::Sender<HotkeyEvent>,
 24 |     path: PathBuf,
 25 |     device: Device,
 26 |     key: Key,
 27 | ) {
 28 |     let name = device.name().unwrap_or("Unnamed device");
 29 |     let name = format!("{} ({})", name, path.display());
 30 | 
 31 |     println!("listening for events on {}", name);
 32 |     let mut events = match device.into_event_stream() {
 33 |         Ok(events) => events,
 34 |         Err(e) => {
 35 |             eprintln!("Error while starting event stream on {}: {}", name, e);
 36 |             return;
 37 |         }
 38 |     };
 39 |     loop {
 40 |         let ev = match events.next_event().await {
 41 |             Ok(ev) => ev,
 42 |             Err(e) => {
 43 |                 eprintln!(
 44 |                     "Error while processing events on {} (device disconnected?): {}",
 45 |                     name, e
 46 |                 );
 47 |                 return;
 48 |             }
 49 |         };
 50 | 
 51 |         if let InputEventKind::Key(k) = ev.kind() {
 52 |             if k == key {
 53 |                 if ev.value() == 0 {
 54 |                     let _ = sender.send(HotkeyEvent::Released).await;
 55 |                 } else if ev.value() == 1 {
 56 |                     let _ = sender.send(HotkeyEvent::Pressed).await;
 57 |                 }
 58 |             }
 59 |         }
 60 |     }
 61 | }
 62 | 
 63 | pub async fn register_and_watch(sender: mpsc::Sender<HotkeyEvent>, hotkey: String) {
 64 |     let key = Key::from_str(&hotkey).expect(&format!("Could not find key with name {hotkey}"));
 65 |     evdev::enumerate()
 66 |         .filter(|(_, device)| {
 67 |             device
 68 |                 .supported_keys()
 69 |                 .map_or(false, |keys| keys.contains(key))
 70 |         })
 71 |         .for_each(|(path, device)| {
 72 |             runtime().spawn(glib::clone!(@strong sender => async move {
 73 |                 evdev_listen_device(sender, path, device, key).await;
 74 |             }));
 75 |         });
 76 | 
 77 |     // Watch for new devices in /dev/input
 78 |     let (tx, mut rx) = channel(1);
 79 |     let mut watcher = RecommendedWatcher::new(
 80 |         move |res| {
 81 |             tx.blocking_send(res).unwrap();
 82 |         },
 83 |         notify::Config::default(),
 84 |     )
 85 |     .expect("Failed to setup /dev/input watcher");
 86 | 
 87 |     watcher
 88 |         .watch(Path::new("/dev/input"), RecursiveMode::NonRecursive)
 89 |         .expect("Failed to watch /dev/input");
 90 | 
 91 |     let mut wait_for_permissions = HashMap::new();
 92 |     let try_spawn_listener = |path: PathBuf| -> Result<()> {
 93 |         let device = Device::open(&path)?;
 94 |         runtime().spawn(glib::clone!(@strong sender => async move {
 95 |             evdev_listen_device(sender, path, device, key).await;
 96 |         }));
 97 | 
 98 |         Ok(())
 99 |     };
100 | 
101 |     loop {
102 |         let timeout = tokio::time::sleep(Duration::from_secs(1));
103 |         tokio::pin!(timeout);
104 |         tokio::select! {
105 |             res = rx.recv() => {
106 |                 if let Some(res) = res {
107 |                     match res {
108 |                         Ok(event) => match event.kind {
109 |                             EventKind::Create(CreateKind::File) => {
110 |                                 for path in event.paths {
111 |                                     if let Err(_) = try_spawn_listener(path.clone()) {
112 |                                         // Udev might take some time to modify the file permissions
113 |                                         // so we can actually access the device. This also prevents
114 |                                         // us from installing a file watcher, so instead we will
115 |                                         // recheck up to 5 times, with a 1 second delay.
116 |                                         wait_for_permissions.insert(path, 5);
117 |                                     }
118 |                                 }
119 |                             }
120 |                             _ => {}
121 |                         },
122 |                         Err(e) => eprintln!("watch error: {:?}", e),
123 |                     }
124 |                 } else {
125 |                     break;
126 |                 }
127 |             }
128 |             _ = &mut timeout => {
129 |                 wait_for_permissions.retain(|path, remaining_tries| {
130 |                     if *remaining_tries == 0 {
131 |                         return false;
132 |                     }
133 | 
134 |                     if try_spawn_listener(path.clone()).is_ok() {
135 |                         // We are now listening, so don't spawn new listeners
136 |                         return false;
137 |                     }
138 | 
139 |                     *remaining_tries -= 1;
140 |                     return true;
141 |                 });
142 |             }
143 |         }
144 |     }
145 | }
146 | 


--------------------------------------------------------------------------------
/src/keyboard.rs:
--------------------------------------------------------------------------------
 1 | use color_eyre::eyre::Result;
 2 | use enigo::{Enigo, Keyboard, Settings};
 3 | use tokio::sync::mpsc;
 4 | 
 5 | use crate::runtime;
 6 | 
 7 | pub fn spawn_virtual_keyboard(mut virtual_keyboard_receiver: mpsc::Receiver<String>) -> Result<()> {
 8 |     runtime().spawn(async move {
 9 |         while let Some(line) = virtual_keyboard_receiver.recv().await {
10 |             // Don't ask why we do this each time. Sometimes the wayland connection
11 |             // breaks and this allows us to be more robust.
12 |             let mut enigo = Enigo::new(&Settings::default()).unwrap();
13 |             if let Err(e) = enigo.text(&line) {
14 |                 eprintln!("Failed to type text: {e}")
15 |             }
16 |         }
17 |     });
18 | 
19 |     Ok(())
20 | }
21 | 


--------------------------------------------------------------------------------
/src/main.rs:
--------------------------------------------------------------------------------
 1 | use clap::Parser;
 2 | use color_eyre::eyre::Result;
 3 | use std::sync::OnceLock;
 4 | use tokio::runtime::Runtime;
 5 | 
 6 | mod app;
 7 | mod cli;
 8 | mod hotkeys;
 9 | mod keyboard;
10 | mod util;
11 | mod waybar;
12 | 
13 | pub fn runtime() -> &'static Runtime {
14 |     static RUNTIME: OnceLock<Runtime> = OnceLock::new();
15 |     RUNTIME.get_or_init(|| Runtime::new().expect("Setting up tokio runtime needs to succeed."))
16 | }
17 | 
18 | fn main() -> Result<()> {
19 |     color_eyre::install()?;
20 |     let args = cli::Cli::parse();
21 | 
22 |     match args.command {
23 |         cli::Command::WaybarStatus { connection_opts } => {
24 |             runtime()
25 |                 .block_on(async move { waybar::main_waybar_status(&connection_opts).await })?;
26 |         }
27 |         command @ cli::Command::Overlay { .. } => {
28 |             app::launch_app(command)?;
29 |         }
30 |     }
31 | 
32 |     Ok(())
33 | }
34 | 


--------------------------------------------------------------------------------
/src/style.css:
--------------------------------------------------------------------------------
 1 | window {
 2 | 	background-color: transparent;
 3 | }
 4 | 
 5 | .main-box {
 6 | 	border-radius: 24px;
 7 | 	background-color: alpha(#000000, 0.8);
 8 | 	padding-bottom: 12px;
 9 | 	padding-top: 0px;
10 | 	padding-left: 24px;
11 | 	padding-right: 24px;
12 | 	border: 4px solid alpha(#000000, 0.4);
13 | }
14 | 
15 | .connection-status {
16 | 	color: #e3e6eb;
17 | 	font-size: 1.5rem;
18 | 	margin-top: 12px;
19 | }
20 | 
21 | .live-text {
22 | 	color: #e3e6eb;
23 | 	font-size: 3rem;
24 | }
25 | 


--------------------------------------------------------------------------------
/src/util.rs:
--------------------------------------------------------------------------------
 1 | use color_eyre::eyre::Result;
 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
 3 | 
 4 | pub async fn send_message<S: AsyncWriteExt + std::marker::Unpin>(
 5 |     socket: &mut S,
 6 |     value: serde_json::Value,
 7 | ) -> Result<()> {
 8 |     let json_str = value.to_string();
 9 |     let data = json_str.as_bytes();
10 |     let message_length = (data.len() as u32).to_be_bytes();
11 | 
12 |     socket.write_all(&message_length).await?;
13 |     socket.write_all(data).await?;
14 |     socket.flush().await?;
15 | 
16 |     Ok(())
17 | }
18 | 
19 | pub async fn send_audio_data<S: AsyncWriteExt + std::marker::Unpin>(
20 |     socket: &mut S,
21 |     data: &[u8],
22 | ) -> Result<()> {
23 |     if !data.is_empty() {
24 |         let message_length = (data.len() as u32 | 0x80000000).to_be_bytes();
25 |         socket.write_all(&message_length).await?;
26 |         socket.write_all(data).await?;
27 |         socket.flush().await?;
28 |     }
29 | 
30 |     Ok(())
31 | }
32 | 
33 | pub async fn recv_message<S: AsyncReadExt + std::marker::Unpin>(
34 |     socket: &mut S,
35 | ) -> Result<serde_json::Value> {
36 |     let mut length_buf = [0u8; 4];
37 |     socket.read_exact(&mut length_buf).await?;
38 | 
39 |     let message_length = u32::from_be_bytes(length_buf) as usize;
40 |     let mut data_buf = vec![0u8; message_length];
41 |     socket.read_exact(&mut data_buf).await?;
42 | 
43 |     let json_str = String::from_utf8(data_buf)?;
44 |     let value = serde_json::from_str(&json_str)?;
45 |     Ok(value)
46 | }
47 | 


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/src/waybar.rs:
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 1 | use crate::cli::ConnectionOpts;
 2 | use crate::util::{recv_message, send_message};
 3 | use color_eyre::eyre::Result;
 4 | use serde::Deserialize;
 5 | use serde_json::json;
 6 | use std::time::Duration;
 7 | use tokio::net::TcpStream;
 8 | 
 9 | #[derive(Debug, Deserialize)]
10 | struct StatusMessage {
11 |     clients: u32,
12 |     waiting: u32,
13 | }
14 | 
15 | pub async fn main_waybar_status(connection_opts: &ConnectionOpts) -> Result<()> {
16 |     let status_offline = json!({
17 |         "text": "Disconnected",
18 |         "alt": "disconnected",
19 |         "tooltip": format!("Server: {}\nStatus: Disconnected", connection_opts.address),
20 |         "class": "disconnected",
21 |         "clients": 0,
22 |         "waiting": 0,
23 |     });
24 | 
25 |     let mut last_status = json!({});
26 |     let mut update_status = |s: serde_json::Value| {
27 |         if last_status != s {
28 |             println!("{}", s);
29 |             last_status = s;
30 |         }
31 |     };
32 | 
33 |     'outer: loop {
34 |         let mut socket = match TcpStream::connect(&connection_opts.address).await {
35 |             Ok(socket) => socket,
36 |             Err(_) => {
37 |                 //eprintln!("error: {e}");
38 |                 update_status(status_offline.clone());
39 |                 tokio::time::sleep(Duration::from_secs(5)).await;
40 |                 continue;
41 |             }
42 |         };
43 | 
44 |         if let Err(e) = send_message(&mut socket, json!({"mode": "status"})).await {
45 |             eprintln!("error: {e}");
46 |             update_status(status_offline.clone());
47 |             tokio::time::sleep(Duration::from_secs(5)).await;
48 |             continue;
49 |         }
50 | 
51 |         loop {
52 |             let message = match recv_message(&mut socket).await {
53 |                 Ok(value) => value,
54 |                 Err(e) => {
55 |                     eprintln!("error: {e}");
56 |                     update_status(status_offline.clone());
57 |                     tokio::time::sleep(Duration::from_secs(5)).await;
58 |                     continue 'outer;
59 |                 }
60 |             };
61 | 
62 |             let message: StatusMessage = match serde_json::from_value(message) {
63 |                 Ok(value) => value,
64 |                 Err(e) => {
65 |                     eprintln!("error: {e}");
66 |                     update_status(status_offline.clone());
67 |                     tokio::time::sleep(Duration::from_secs(5)).await;
68 |                     continue 'outer;
69 |                 }
70 |             };
71 | 
72 |             let class = format!(
73 |                 "connected{}",
74 |                 (if message.waiting < message.clients {
75 |                     "-active"
76 |                 } else {
77 |                     ""
78 |                 })
79 |             );
80 |             let status = json!({
81 |                 "text": (if message.waiting < message.clients { "-active" } else { "" }),
82 |                 "alt": class,
83 |                 "tooltip": format!(
84 |                     "Server: {}\nStatus: Connected\nActive clients: {}\nWaiting clients: {}",
85 |                     connection_opts.address,
86 |                     message.clients - message.waiting,
87 |                     message.waiting
88 |                 ),
89 |                 "class": class,
90 |                 "clients": message.clients,
91 |                 "waiting": message.waiting,
92 |             });
93 | 
94 |             update_status(status);
95 |         }
96 |     }
97 | }
98 | 


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