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Node / ReticulumProjects / LXST.git rns://8b8c1d7fe59ff5a49edd723b02df1a06/ReticulumProjects/LXST.git
Lightweight and flexible real-time streaming format and delivery protocol for Reticulum - MIRROR
>Lightweight Extensible Signal Transport
LXST is a simple and flexible real-time streaming format and delivery protocol that allows a wide variety of implementations, while using as little bandwidth as possible. It is built on top of Reticulum and offers zero-conf stream routing, end-to-end encryption and Forward Secrecy, and can be transported over any kind of medium that Reticulum supports.
• Cross-platform, works on Linux, Android, Windows and Mac
• Provides a variety of ready-to-use primitives, for easily creating applications such as:
• Telephony and live voice calls
• Two-way radio systems
• Direct peer-to-peer radio communications
• Trunked and routed real-time radio systems
• Media streaming
• Broadcast radio
• Public address systems
• Can handle real-time signal streams with end-to-end latencies below 10 milliseconds
• Supports encoding and decoding stream contents with a range of different codecs
• Raw and lossless streams with arbitrary sample rates
• Up to 32 channels
• Up to 128-bit sample precision
• Efficient, high-quality voice and audio with OPUS
• Many different built-in profiles, from ~4.5kbps to ~96kbps
• Profiles are pre-tuned for different applications, such as:
• Low-bandwidth voice
• Medium quality voice
• High quality, perceptually lossless voice
• Media content such as podcasts
• Perceptually lossless stereo music
• Ultra low-bandwidth voice communications with Codec2
• Provides intelligible voice between 700bps and 3200bps
• Can dynamically switch codecs mid-stream without stream re-initialization or frame loss
• Has in-band signalling support for call signalling, communications, metadata embedding, media and stream management
• Uses a fully staged signal pipelining, allowing arbitrary stream routing
• Provides built-in signal mixing support for any number of channels
Transport Encryption
LXST uses encryption provided by Reticulum, and thus provides end-to-end encryption, guaranteed data integrity and authenticity, as well as forward secrecy by default.
Project Status & License
This software and its interfaces will change rapidly with ongoing development. Consider no APIs stable. Consider everything explosive. Not all features are implemented. Nothing is documented. For a fully functional LXST program, take a look at Sideband or the included T383838rnphone program, which provides telephony service over Reticulum. Everything else will currently be a voyage of your own making.
The LXST project is available under a T383838CC BY-NC-ND 4.0 license. You can deploy LXST freely for non-commercial, personal and humanitarian purposes. For commercial (including institutionalised educational) licensing, contact me.
Installation
If you want to try out LXST, you can install it with pip:
T282828
pip install lxst
On Raspberry Pi (assuming Trixie / Debian 13), install various dependencies with:
T282828
T8b949e# Audio codecs
sudo apt install python3-pyaudio codec2
T8b949e# For hardware control over I2C:
pip install smbus2 --break-system-packages T8b949e# Install smbus module if not already installed
sudo raspi-config T8b949e# Enable the I2C bus under "Interface Options"
sudo apt install python3-rpi.gpio T8b949e# Install gpio module system-wide
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