# Install libilbc with Homebrew, Nix, pacman Packaged version of iLBC codec from the WebRTC project. Version 3.0.4 via Homebrew; verified from local package data. ## Install ```sh sudo av install brew:libilbc ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install libilbc ``` Evidence: local Homebrew formula metadata ### Linux - Nix (92%): ```sh nix profile install nixpkgs#libilbc ``` Evidence: nixpkgs package indexes: pkgs/by-name/li/libilbc/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - pacman (92%): ```sh sudo pacman -S libilbc ``` Evidence: Arch Linux sync databases: libilbc from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz ## Package facts - **Package key:** brew:libilbc - **Package manager:** Homebrew - **Package manager page:** - **Version:** 3.0.4 - **Source summary:** Packaged version of iLBC codec from the WebRTC project - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** BSD-3-Clause - **Source archive:** - **Generated:** 2026-07-08T18:08:21+00:00 ## Executables - ilbc_test (cli) - ilbc_test (alias) ## Build dependencies - cmake ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura ## Freshness - Page generated: 2026-07-08 - Package-manager version: 3.0.4 - Local data: ok - Upstream repository: https://github.com/TimothyGu/libilbc - info: No package-manager update timestamp was available. - info: No cached GitHub release or tag data was available. ## Project history and usage libilbc is a packaging-focused standalone copy of the Internet Low Bit Rate Codec implementation from the WebRTC project. Its package value is that it turns a codec otherwise embedded in a much larger communications stack into a small system library and test utility. ### Project history The underlying iLBC codec was specified for the IETF in RFC 3951, published in December 2004, with RFC 3952 defining the RTP payload format for carrying iLBC speech. The libilbc repository packages WebRTC's implementation as a distributable library rather than requiring consumers to vendor a WebRTC source subtree. Timothy Gu took over maintainership for the standalone package in the 2.0.0 release dated November 17, 2014, updated the bundled WebRTC source, cleaned the Autotools files, and added CMake support. Version 3.0.0 on December 18, 2020 updated again to WebRTC source r32829, removed Autotools, made CMake the build system, and introduced the installed ilbc_test utility. ### Adoption history Adoption is mainly through distribution packaging and projects that need the iLBC codec without a full WebRTC dependency. The README explicitly targets packagers, and Homebrew, Nix, and Arch package metadata all carry the package under the libilbc name. ### How it is used Typical use is linking against the C library for iLBC encode and decode support or running ilbc_test against raw 8 kHz mono PCM samples. The codec remains relevant where narrowband speech compatibility and packet-loss behavior matter more than modern wideband audio quality. ### Why package nerds care For package maintainers, libilbc is a classic extraction package: it keeps a small, ABI-versioned codec library available without forcing each downstream to track WebRTC internals. The 2020 CMake-only release also made the package easier to integrate into cross-platform build systems. ### Timeline - 2004-12: RFC 3951 specified iLBC as an experimental Internet codec, and RFC 3952 specified its RTP payload format. - 2014-11-17: libilbc 2.0.0 moved under Timothy Gu's maintainership and refreshed the WebRTC source snapshot. - 2014-12-14: libilbc 2.0.2 fixed release-tarball and shared-library packaging details. - 2020-12-18: libilbc 3.0.0 updated to WebRTC source r32829 and made CMake the only build system. - 2020-12-31: libilbc 3.0.4 fixed a Chromium issue and upstreamed local patches to WebRTC. ### Related projects - Related projects include WebRTC, which supplies the codec implementation packaged here; the IETF iLBC RFCs that define the codec and RTP payload; and downstream multimedia or telephony packages that prefer a small standalone codec library. ### Sources - - - - - - ## Security Notes library-like package without higher-risk signals. - **Geiger risk:** green / low - library-like package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** libilbc - **Version Scheme:** 0 - **Revision:** 0 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Other Package-Manager Records - Nix - libilbc: normalized package name match | nixpkgs package indexes: pkgs/by-name/li/libilbc/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - pacman - libilbc - 3.0.4-4: normalized package name match | Arch Linux sync databases: libilbc from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | A friendly copy of the iLBC codec from the WebRTC project | https://github.com/TimothyGu/libilbc/ ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [Media and graphics packages](https://www.automicvault.com/pkg/media-graphics-tools/) - Matched media, image, audio, video, or graphics metadata. - [cmake](https://www.automicvault.com/pkg/brew/cmake/) - Build dependency declared by Homebrew. - [adplug](https://www.automicvault.com/pkg/brew/adplug/) - Shares av.db curated category or tags: audio, cli, library, media. - [alsa-lib](https://www.automicvault.com/pkg/brew/alsa-lib/) - Shares av.db curated category or tags: audio, cli, library, media. - [chromaprint](https://www.automicvault.com/pkg/brew/chromaprint/) - Shares av.db curated category or tags: audio, cli, library, media. - [fluid-synth](https://www.automicvault.com/pkg/brew/fluid-synth/) - Shares av.db curated category or tags: audio, cli, library, media. - [freealut](https://www.automicvault.com/pkg/brew/freealut/) - Shares av.db curated category or tags: audio, cli, library, media. - [id3lib](https://www.automicvault.com/pkg/brew/id3lib/) - Shares av.db curated category or tags: audio, cli, library, media. - [libdca](https://www.automicvault.com/pkg/brew/libdca/) - Shares av.db curated category or tags: audio, cli, library, media. - [libheif](https://www.automicvault.com/pkg/brew/libheif/) - Shares av.db curated category or tags: cli, codec-library, library, media. - [codec2](https://www.automicvault.com/pkg/brew/codec2/) - Both packages work with overlapping file formats or content types. Shared terms: audio, audio-codec, bitrate, cli, codec. - [libvisual](https://www.automicvault.com/pkg/brew/libvisual/) - Both packages work with overlapping file formats or content types. Shared terms: audio, cli, library, media. ## Combined YAML source View the package source record on GitHub. [combined/libilbc.yml](https://github.com/automic-vault/db/blob/main/combined/libilbc.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph