Wires the SSTV decoder into the stack, from the audio the server already has to a panel in the browser that shows the picture arriving. Server: a decoder task alongside the WEFAX one, running whenever the decoder is enabled and the rig is in a mode SSTV is sent in. A finished picture is written to the cache as a PNG and sent on as a message; the rows are sent as they decode, so a client can watch two minutes of Martin M1 fill in rather than waiting for it. Pictures join the decode history, are replayed to a client that connects later, and survive a restart. Protocol: SetSstvDecodeEnabled and ResetSstvDecoder, a sstv_decode _enabled flag in the rig state, two audio message types, and Sstv and SstvProgress on DecodedMessage. The history stores the message without its base64 payload -- the picture is already on disk, and a megabyte per entry is not what a history is for. Client: pictures land in their own history, and the PNG the server sent is written to the local cache so /sstv-images/ can serve it back. That endpoint and the WEFAX one now share their filename checks rather than each carrying a copy: no separators, no parent references, .png only. Web UI: an SSTV sub-tab beside WEFAX, with a live canvas the rows paint into at the line number they carry, a card for the last picture, and a filterable history with links to the files. Rows below the one arriving are grey rather than black -- not yet received is a different thing from received as black. A picture is not a spot, so neither pictures nor their progress updates reach the decode statistics; that exclusion list had grown by hand for LRPT and WEFAX and is now one named set. The decoder crate gains what the server needed to hand a picture on: to_png, to_png_base64 and save_png, with file names stamped in UTC so they sort. Panel behaviour is tested with the plugin runtime: rows painting at their own line numbers rather than in arrival order, a completed picture linked by file name alone with no server path in the page, a cut-off picture reported as partial, clearing, and the toggle following the rig state. Signed-off-by: Stan Grams <sjg@haxx.space>
trx-rs splits radio hardware access from user-facing interfaces so you can run
rig control, SDR DSP, decoding, audio streaming, and web access as separate,
composable pieces.
| Backends | Yaesu FT-817, Yaesu FT-450D, SoapySDR |
| Frontends | Web UI, rigctl-compatible TCP, JSON-over-TCP |
| Decoders | AIS, APRS, CW, FT8, RDS, VDES, WSPR |
| Audio | Opus streaming between server, client, and browser |
Quick Start
1. Install dependencies
Debian / Ubuntu
sudo apt install build-essential pkg-config cmake libopus-dev libasound2-dev
# Optional — SDR support
sudo apt install libsoapysdr-dev
Fedora
sudo dnf install gcc pkg-config cmake opus-devel alsa-lib-devel
# Optional — SDR support
sudo dnf install SoapySDR-devel
Arch Linux
sudo pacman -S base-devel pkgconf cmake opus alsa-lib
# Optional — SDR support
sudo pacman -S soapysdr
macOS (Homebrew)
brew install cmake opus
# Optional — SDR support
brew install soapysdr
See Build Requirements in the wiki for details on each library.
Note:
cmakeis required even when a system Opus library is installed. Theaudiopus_syscrate probes for Opus viapkg-config; if it is not found (orpkg-configis unavailable), it falls back to compiling a vendored copy of Opus with CMake. A missingcmaketherefore fails the build withis cmake not installed?rather than a missing-Opus error.
2. Build
cargo build --release
Build without SDR support: cargo build --release --no-default-features
3. Configure
Run the interactive setup wizard to generate config files for your station:
./target/release/trx-configurator
The wizard walks you through rig selection, serial port detection, audio
settings, and frontend options, then writes trx-server.toml and
trx-client.toml.
Alternatively, generate example configs and edit them by hand:
./target/release/trx-server --print-config > trx-server.toml
./target/release/trx-client --print-config > trx-client.toml
4. Run
./target/release/trx-server --config trx-server.toml
./target/release/trx-client --config trx-client.toml
Open the configured HTTP frontend address in a browser (default http://localhost:8080).
How It Works
graph TD
SDR1["SDR #1"] & SDR2["SDR #2"] <-->|USB| S1["trx-server A"]
SDR3["SDR #3"] & FT817["FT-817"] <-->|USB / serial| S2["trx-server B"]
S1 <-->|"JSON-TCP :4530"| C1["trx-client"]
S1 -->|"Opus-TCP per rig"| C1
S2 <-->|"JSON-TCP :4530"| C1
S2 -->|"Opus-TCP per rig"| C1
C1 <-->|internal channels| F1["Web UI :8080"]
C1 <-->|internal channels| F2["rigctl :4532"]
Each trx-server owns one or more rigs and runs DSP, decoding, and audio capture locally.
A trx-client connects to any number of servers over TCP and exposes them through
a unified set of frontends.
Documentation
| Resource | Description |
|---|---|
| User Manual | Configuration, features, and usage |
| Architecture | System design, crate layout, data flow, and internals |
| Optimization Guidelines | Performance guidelines for the real-time DSP pipeline |
| Planned Features | Roadmap and design notes |
| Contributing | Commit conventions, workflow, and code style |
License
GPL-2.0-or-later. See LICENSES for the full license text and
bundled third-party license files. Bundled third-party components retain their
original licenses: Leaflet is BSD-2-Clause, DSEG is OFL-1.1, and opus-decoder
is MIT. The APRS symbol sprites come from
hessu/aprs-symbols; their per-symbol
copyright status is catalogued in
LICENSES/LicenseRef-APRS-Symbols.txt.
