WordPress at a glance
filter is not described

wp_get_attachment_id3_keys filter-hook . WP 3.9.0

Filters the editable list of keys to look up data from an attachment's metadata.

Usage

add_filter( 'wp_get_attachment_id3_keys', 'filter_function_name_1719', 10, 3 );
function filter_function_name_1719( $fields, $attachment, $context ){
	// filter...

	return $fields;
}
$fields(array)
Key/value pairs of field keys to labels.
$attachment(WP_Post)
Attachment object.
$context(string)
The context. Accepts 'edit', 'display'.
Default: 'display'

Where the hook is called

wp_get_attachment_id3_keys()
wp-includes/media.php 2198
return apply_filters( 'wp_get_attachment_id3_keys', $fields, $attachment, $context );

Where the hook is used (in WP core)

Does not used.