Manual:$wgExiv2Command

Images: $wgExiv2Command
Path to the exiv2 executable.
Introduced in version:1.18.0 (r90919)
Removed in version:Still in use
Allowed values:(string)
Default value:'/usr/bin/exiv2'

Details

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One of the MediaWiki PHP unit tests uses exiv2 to manipulate EXIF metadata.

Everyone who is not a MediaWiki developer can ignore this setting.