Installer apngasm avec Homebrew

Liens du projet

• Page d'accueil

Commandes et alias

• apngasm

Historique du projet

The older SourceForge-hosted APNG Assembler page describes a command-line and GUI tool that creates APNG animations from PNG or TGA image sequences. It emphasizes inter-frame optimization, palette and color-type optimization, and zlib, 7zip, and Zopfli compression options.

The current GitHub project was created in July 2013 and calls itself the next generation of apngasm. Its README documents a CMake-based cross-platform build, CLI and library packaging, Java and Ruby wrappers generated through SWIG, and copyright shared as a joint production by Max Stepin and K.K. GenSouSha.

Official GitHub releases show the 3.1.x line in 2014 and 2015, followed by a 3.1.10 release in 2021 for newer build and packaging systems plus small fixes.

Historique d'adoption

The README recommends Homebrew for the latest macOS apngasm, GitHub releases for Windows, and a Launchpad PPA for GNU/Linux. The supplied package metadata also records Homebrew, Debian, Nix, Scoop, and Ubuntu packages, indicating broad packaging for a specialized image tool.

The SourceForge feed shows prebuilt 2.91 artifacts for Linux, macOS, and Windows in 2016, while the GitHub repository shows the later source-control home for the next-generation codebase.

Modes d'utilisation

The SourceForge documentation shows commands such as apngasm output.png frame001.png [options] and apngasm output.png frame*.png [options]. Options include frame delay, loop count, skipping the first frame, keeping palette or color type, compression backend, and iteration counts.

The GitHub README is more build- and packaging-oriented, with platform-specific dependency lists and package-building instructions rather than a fixed user config file.

Pourquoi les passionnés de paquets s'y intéressent

apngasm matters because APNG is a format niche where small command-line utilities define the practical toolchain. It gives packagers a native assembler that can be scripted, built through CMake, wrapped as a library, and distributed through distro repositories.

Its evolution from SourceForge binaries and GUI/CLI zips to a GitHub-hosted CMake project is a compact example of how older image-format utilities migrated into modern package-manager ecosystems.

Chronologie

• 2013: Current apngasm/apngasm GitHub repository was created.
• 2014: GitHub 3.1.x releases began, including libapngasm updates.
• 2016: SourceForge feed records APNG Assembler 2.91 source and platform binary releases.
• 2021: GitHub 3.1.10 release updated builds and packaging for newer systems.

Related projects

• The official SourceForge page links apngdis, gif2apng, apng2gif, and apngopt as related APNG utilities. The GitHub README also points Ruby users toward the rapngasm gem.

Sources

• http://apngasm.sourceforge.net/
• https://api.github.com/repos/apngasm/apngasm
• https://api.github.com/repos/apngasm/apngasm/releases
• https://github.com/apngasm/apngasm#readme
• https://sourceforge.net/projects/apngasm/rss?path=/
• source_facts.package-manager