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pleroma/docs/installation/optional/media_graphics_packages.md
Ilja cd316d7269 Use EXIF data of image to prefill image description 
During attachment upload Pleroma returns a "description" field. Pleroma-fe has an MR to use that to pre-fill the image description field, <https://git.pleroma.social/pleroma/pleroma-fe/-/merge_requests/1399>

* This MR allows Pleroma to read the EXIF data during upload and return the description to the FE
    * If a description is already present (e.g. because a previous module added it), it will use that
    * Otherwise it will read from the EXIF data. First it will check -ImageDescription, if that's empty, it will check -iptc:Caption-Abstract
    * If no description is found, it will simply return nil, just like before
* When people set up a new instance, they will be asked if they want to read metadata and this module will be activated if so

This was taken from an MR i did on Pleroma and isn't finished yet.
2022-07-01 12:13:46 +02:00

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Optional software packages needed for specific functionality

For specific Pleroma functionality (which is disabled by default) some or all of the below packages are required: * ImageMagic * ffmpeg * exiftool

Please refer to documentation in docs/installation on how to install them on specific OS.

Note: the packages are not required with the current default settings of Pleroma.

ImageMagick

ImageMagick is a set of tools to create, edit, compose, or convert bitmap images.

It is required for the following Pleroma features: * Pleroma.Upload.Filters.Mogrify, Pleroma.Upload.Filters.Mogrifun upload filters (related config: Plaroma.Upload/filters in config/config.exs) * Media preview proxy for still images (related config: media_preview_proxy/enabled in config/config.exs)

ffmpeg

ffmpeg is software to record, convert and stream audio and video.

It is required for the following Pleroma features: * Media preview proxy for videos (related config: media_preview_proxy/enabled in config/config.exs)

exiftool

exiftool is media files metadata reader/writer.

It is required for the following Pleroma features: * Pleroma.Upload.Filters.Exiftool upload filter (related config: Plaroma.Upload/filters in config/config.exs) * Pleroma.Upload.Filters.ExiftoolReadData upload filter (related config: Plaroma.Upload/filters in config/config.exs)