Fountain Library Project

Rust crates for fountain codes: engine, schemes (LT and Raptor-style), utilities, optional high-performance operators, RFC Raptor implementations, and rateless UDP file transfer. Live site

The fountain library project is a collection of Rust crates for building and analyzing fountain codes. It provides a reusable engine for encoding and decoding, configurable schemes (LT and Raptor-style codes), and utilities for testing and benchmarking.

Getting Started

1. Add fountain_engine plus one scheme crate (for example fountain_scheme, fountain_raptor_q, or fountain_raptor_10) to your Cargo.toml.
2. Try fountain_transfer for rateless UDP file transfer.
3. Read doc-engine.pdf for engine and operator concepts, or doc-scheme.pdf for building custom schemes.

Published Crates

Core

• fountain_engine — Core fountain code engine
  Crates.io · GitHub

Utility

• fountain_utility — In-memory operators, padding wrappers, and testing utilities
  Crates.io · GitHub

Operators

• fountain_operators — Experimental. High-performance DataOperator backends (SlabDataOperator, SimdDataOperator, GF(256) kernels, replay/testing). API may change. Requires fountain_engine 1.3+.
  GitHub · README

Schemes

• fountain_scheme — Configurable schemes (LT, LDPC-LT, HDPC-LT, systematic) on fountain_engine
  Crates.io · GitHub
• fountain_raptor_q — RFC 6330 RaptorQ scheme on fountain_engine
  Crates.io · GitHub
• fountain_raptor_10 — RFC 5053 Raptor-10 scheme on fountain_engine
  Crates.io · GitHub

Transfer

• fountain_transfer — CLI Rateless UDP file transfer.
  GitHub · README

More

Additional tooling (profiling, multicast transport, etc.) may appear as the ecosystem evolves.

Project Documentation

PDF guides for the engine and scheme-building workflow. Raptor scheme crates also publish API docs on docs.rs (links above).

• Fountain engine and utility usage (PDF)
• Fountain code scheme building introduction and examples (PDF)

Contributors

• Shenghao Yang
• Zigeng Xu