libkate ☆

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Description:
Overlay codec for multiplexed audio/video in Ogg

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Multimedia

Tags: codec ogg multimedia subtitles audio

Install: brew install libkate

About:
Libkate is a lightweight overlay codec designed for the Ogg container format. It enables the multiplexing of text-based data, such as subtitles, lyrics, and karaoke, alongside existing audio and video streams. Its primary value is providing a standardized, open method for adding rich, timed text overlays to Ogg-based media projects.

Key Features:

Defines a codec for text overlays within the Ogg container
Supports advanced text formatting, styling, and positioning
Includes tools for encoding and decoding Kate streams
Designed for low overhead and high performance
Integrates with the Ogg multimedia ecosystem

Use Cases:

Adding subtitles or closed captions to Ogg Theora video files
Displaying synchronized lyrics for Ogg Vorbis or Opus audio tracks
Creating interactive karaoke applications with timed text prompts

Alternatives:

Ogg Text (OggText) – An older, less feature-rich subtitle format for Ogg; Libkate offers more advanced styling and positioning capabilities.
Matroska (MKV) Subtitles – A different container format with extensive built-in subtitle support; Libkate provides a similar capability specifically for the Ogg ecosystem.

Version History

Detected	Version	Rev	Change	Commit
Sep 11, 2025 10:47am		0	VERSION_BUMP	3ba2e31a
Sep 11, 2024 6:28am		1	VERSION_BUMP	ccf627a3