Exempi is an implementation of XMP. Version 2.x is based on Adobe XMP SDK and released under a BSD-style license like Adobe’s. The 3 clause BSD (aka New-BSD) license is compatible with GPL. The licensing is kept identical in order to allow two-way merging of the code (ie sending our change to the XMP SDK to Adobe for integration).

The API is C based and means to be used from any language and be easier to maintain ABI stability.

The overall changes include:

STABLE C API/ABI for the library, instead of a C++ template based version.
Rust bindings (available separately).
No CLA to contribute.
Build system based on automake.
Code changes for more UNIX systems compatibility.
Broader architecture support.
WebP support.
Test suite.

There is also a work in progress “exempi” command line tool starting in 2.2.0

Download Exempi

2.x series

version 2.6.5 .tar.xz - GPG signature - .tar.bz2 - GPG signature
version 2.5.2 .tar.bz2 - GPG signature
version 2.4.5 .tar.bz2 - GPG signature
version 2.3.0 .tar.bz2 - GPG signature
version 2.2.2 .tar.bz2 - GPG signature
older releases

Changelog

Rust crate

To use Exempi 2.4.0 (or later) from Rust, juste use the crates: exempi2 and exempi-sys

Just specify in your Cargo.toml file the following:

[dependencies]
exempi2 = "0.1.3"

Use the appropriate version as you see fit. See the documentation.

Note: the crate exempi2 replace the crate exempi. It is mostly API compatible.

Binary packages

check your favorite distribution.

Obsolete 1.0 series

Before the XMP SDK was available, Exempi started as a new implementation.

version 0.5.1 .tar.gz - GPG signature
version 0.5.0 .tar.gz - GPG signature

Bugs reporting

Bugs can be reported in the Gitlab issue tracker: Report a bug

Mailing list

There is a mailing list exempi-devel to discuss of exempi development and exempi use (as a developer). https://lists.freedesktop.org/mailman/listinfo/exempi-devel

Source Code repository

You can access everything from the Gitlab project