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filter is not described

media_upload_mime_type_links filter-hook . WP 3.1.0

Filters the media upload mime type list items.

Returned values should begin with an <li> tag.

Usage

add_filter( 'media_upload_mime_type_links', 'filter_function_name_6232' );
function filter_function_name_6232( $type_links ){
	// filter...

	return $type_links;
}
$type_links(string[])
An array of list items containing mime type link HTML.

Where the hook is called

media_upload_library_form()
media_upload_mime_type_links
wp-admin/includes/media.php 2627
echo implode( ' | </li>', apply_filters( 'media_upload_mime_type_links', $type_links ) ) . '</li>';

Where the hook is used (in WP core)

Does not used.