libultrahdr ☆
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Description:
Reference codec for the Ultra HDR format
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Multimedia
Tags: ultra-hdr hdr image-processing codec multimedia
Install: brew install libultrahdr
About:
Libultrahdr is the official reference library and codec for Android's Ultra HDR format (JPEG gain map). It provides tools to encode and decode HDR images with SDR fallbacks, enabling rich color and brightness on supported displays. This library is essential for developers integrating Ultra HDR support into their applications.
Key Features:
  • Reference implementation of the Ultra HDR specification
  • Encoding and decoding of JPEG gain map images
  • Cross-platform C++ library
  • Provides both library and command-line tools
Use Cases:
  • Adding Ultra HDR support to image processing applications
  • Converting between SDR and HDR image formats
  • Researching and testing the Ultra HDR specification
Alternatives:
  • libavif – Focuses on the AVIF format, which also supports HDR, but is a different codec standard.
  • ImageMagick – A general-purpose tool that may handle HDR formats but is not a reference implementation for Ultra HDR.
Version History
Detected Version Rev Change Commit
Sep 16, 2025 10:36am 0 VERSION_BUMP fd531160
Jan 10, 2025 5:14am 0 VERSION_BUMP 787c0fe7
Jan 10, 2025 4:59am 0 VERSION_BUMP a15e1628
Nov 24, 2024 8:38am 0 VERSION_BUMP 1922dc64
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