pkg.soopen package index

brew / rank 610

Install libultrahdr with Homebrew, dnf, Nix, pacman

Reference codec for the Ultra HDR format. Version 1.5.1 via Homebrew; verified from local package data. Also installable with nix: nix profile install nixpkgs#libultrahdr.

Install commandSecurity notes

install

Additional install commands

macOS

Homebrewverified · 100%
brew install libultrahdr

local Homebrew formula metadata

Linux

Fedora dnfverified · 92%
sudo dnf install libultrahdr

Fedora Rawhide package metadata · libultrahdr · source: dl.fedoraproject.org

Nixverified · 92%
nix profile install nixpkgs#libultrahdr

nixpkgs package indexes · pkgs/by-name/li/libultrahdr/package.nix · source: api.github.com

Arch Linux pacmanverified · 92%
sudo pacman -S libultrahdr

Arch Linux sync databases · libultrahdr · source: geo.mirror.pkgbuild.com

overview

Package summary

Reference codec for the Ultra HDR format

Commands and aliases

  • ultrahdr_app

history

Project history and usage

libultrahdr is Google's reference codec for Ultra HDR, a backward-compatible HDR image format that stores an SDR base image plus a gain map and metadata so legacy JPEG readers can still display the SDR rendition.

Project history

Android's Ultra HDR specification defines a JPEG-based format that encodes a logarithmic range gain map. libultrahdr implements the codec side: it can compute a gain map from SDR and HDR renditions, store the base image, gain map, and metadata, and decode them back into an HDR rendering on compatible displays.

The GitHub release history starts with version 1.0.0 on October 24, 2023. The 1.1.0 release in August 2024 added image-quality features, command-line tool updates, editing support, and ISO 21496-1 standard support. The 1.4.0 release in January 2025 added per-channel content boost configuration and alternate color-space handling.

Adoption history

Ultra HDR entered Android developer workflows with Android 14 API level 34 support for displaying Ultra HDR images. Android documentation tells app developers to detect gain maps and switch windows into HDR color mode when displaying these images.

Google's Android Developers Blog described Instagram as an early adopter that began implementing Ultra HDR in late September 2023, highlighting the format's movement from platform feature to high-volume social media use.

How it is used

Developers use libultrahdr to encode HDR still images into a backward-compatible JPEG container and to decode Ultra HDR images for HDR-capable displays. The bundled ultrahdr_app command-line tool makes it useful for testing encodes, decodes, performance, and format behavior outside Android app code.

Why package nerds care

libultrahdr matters to package nerds because it turns a mobile platform media feature into a portable codec library that distributions can ship. It also captures the practical transition from SDR-only JPEG workflows to gain-map HDR images that still degrade cleanly in old software.

Timeline

  • 2023: Android 14 introduced platform support for Ultra HDR images.
  • 2023: libultrahdr 1.0.0 was released on October 24, 2023.
  • 2024: libultrahdr 1.1.0 added editing support and ISO 21496-1 support on August 22, 2024.
  • 2024: libultrahdr 1.2.0 added a Java library and sample app on September 20, 2024.
  • 2025: libultrahdr v1.4.0 was released on January 10, 2025.

Related projects

  • Android 14 and later Android media APIs provide platform display support for Ultra HDR.
  • ISO 21496-1 is an adjacent gain-map HDR standard named in the libultrahdr release notes.
  • JPEG, XMP, and CIPA Multi-Picture Format are normative or container-level building blocks cited by the Ultra HDR specification.

security posture

Risk level: green

library-like package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

  • library-like package without higher-risk signals

Signals

  • metadata:library-like

Install behavior

  • No Homebrew post-install hook is recorded in formula metadata.
  • Homebrew bottle metadata is available for 6 platform targets.
  • Installs with 1 runtime dependencies.
  • Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

CommandKindExposureNote
ultrahdr_appcliglobal executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-08-04
manager version1.5.1
manager updated
local dataok
upstreamcurrent
latest detectedv1.5.1

https://github.com/google/libultrahdr

  • infoNo package-manager update timestamp was available.low confidence

install metadata

Package metadata

Package keybrew:libultrahdr
Version1.5.1
Package managerHomebrew
Package manager pagehttps://formulae.brew.sh/formula/libultrahdr
Homepagehttps://developer.android.com/media/platform/hdr-image-format
Repositoryhttps://github.com/google/libultrahdr
Upstream docshttps://developer.android.com/media/platform/hdr-image-format
LicenseApache-2.0
Source archivehttps://github.com/google/libultrahdr/archive/refs/tags/v1.5.1.tar.gz
Dependenciesjpeg-turbo
Build dependenciescmake
Bottleavailable (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-installnot defined
Servicenone declared

registry facts

Source database details

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Namelibultrahdr
Version Scheme0
Revision0
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

libultrahdr

nix profile install nixpkgs#libultrahdr
  • normalized package name match
  • Matched by: Libultrahdr
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/li/libultrahdr/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
dnf95%

libultrahdr 1.4.0^20251202git8cbc983-2.fc45

Reference codec for the Ultra HDR format

https://github.com/google/libultrahdr

sudo dnf install libultrahdr
  • License: Apache-2.0 AND BSD-3-Clause
  • Category: Unspecified
  • Architecture: i686
  • Source Package: libultrahdr
  • 6 dependencies
  • 3 provides
  • normalized package name match
  • Matched by: Libultrahdr
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: libultrahdr from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-primary.xml.zst
dnf95%

libultrahdr-devel 1.4.0^20251202git8cbc983-2.fc45

Development files for libultrahdr

https://github.com/google/libultrahdr

sudo dnf install libultrahdr-devel
  • License: Apache-2.0 AND BSD-3-Clause
  • Category: Unspecified
  • Architecture: i686
  • Source Package: libultrahdr
  • 10 dependencies
  • 2 provides
  • normalized package name match
  • Matched by: Libultrahdr
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: libultrahdr-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/210a2053c8e007daf9ae39c2a21daaed9b2ddd07d63ecffa597050361e73650c-primary.xml.zst
pacman95%

libultrahdr 1.5.1-1

The reference codec for the Ultra HDR format

https://github.com/google/libultrahdr

sudo pacman -S libultrahdr
  • License: Apache-2.0
  • Architecture: x86_64
  • 4 dependencies
  • normalized package name match
  • Matched by: Libultrahdr
Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: libultrahdr from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

Related tools

  • jpeg-turboRuntime dependency declared by Homebrew.
  • cmakeBuild dependency declared by Homebrew.
  • vipsPopular package that depends on this formula.
  • imagemagick-fullPopular package that depends on this formula.

Same workflow

  • libheifShares pkgdb curated category or tags: cli, image-codec, image-processing, media.
  • giflibShares pkgdb curated category or tags: cli, image-processing, media.
  • leptonicaShares pkgdb curated category or tags: cli, image-processing, media.
  • netpbmShares pkgdb curated category or tags: cli, image-processing, media.
  • epsilonShares pkgdb curated category or tags: cli, image-processing, media.
  • gifsicleShares pkgdb curated category or tags: cli, image-processing, media.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Used sources

  • Geiger risk classifier
  • cross-ecosystem install command graph
  • curated package history
  • external package-manager database matches
  • package relationship graph
  • package version freshness
  • package-page enrichment
  • pkg.so package database
  • pkgdb category and tag curation