Provenance

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RustyOpus vendors no third-party source code; it depends on published crates from crates.io and published Hex packages. This page records the exact upstream revisions and licenses so a build is reproducible and the third-party surface is auditable.

Codec: opus-rs

  • Crate: opus-rs
  • Version: 0.1.29 (pinned exactly with =0.1.29 in native/rusty_opus_native/Cargo.toml and Cargo.lock)
  • Repository: https://github.com/restsend/opus-rs
  • License: BSD-3-Clause (see NOTICE)
  • Features: default std + heap. The std feature enables OS-backed runtime x86 SIMD detection; the heap feature keeps OpusEncoder/OpusDecoder on the heap so the public structs are small and fit ordinary stacks.
  • Edition: 2024 (requires Rust 1.85+; RustyOpus pins 1.89.0).

RustyOpus does not modify opus-rs. It wraps the public OpusEncoder/OpusDecoder API through Rustler for packet/PCM work, and uses the same codec behind thin in-crate Ogg Opus family-0 demux/mux for RustyOpus.reencode/2 (ADR003). The pinned revision is exactly what Cargo.lock records.

NIF layer: rustler

  • Crate: rustler
  • Version: 0.36.2 (pinned exactly)
  • License: MIT / Apache-2.0
  • NIF version: 2.15

Elixir tooling

  • rustler_precompiled (~> 0.9), Apache/MIT — checksum-verified precompiled NIFs with a source-build fallback.
  • ex_doc (~> 0.40, dev only), Apache-2.0 — documentation.

License policy

  • The RustyOpus package itself is Apache-2.0 (LICENSE).
  • Third-party licenses are recorded in NOTICE. No vendored source is committed; all dependencies are pinned in Cargo.lock and mix.lock.

Fixtures

  • PCM / raw-packet fixtures are imported by scripts/import_fixtures.sh (developer-side; ffmpeg only there).
  • test/fixtures/speech_ogg_1.ogg is a committed Ogg Opus speech blob used by reencode/2 tests. Tests never open an external database. The native NIF is always built in release mode so multi-second Opus work stays in the millisecond–low-second range under mix test.