oEmbed Library Addon for WP Offload S3

wpos3-oembed-library.php

<?php
/*
Plugin Name: WP Offload S3 - oEmbed Library Addon
*/

/**
 * OEmbed in Library
 * https://wordpress.org/plugins/oembed-in-library/
 */
function wpos3_oembed_lib_init() {
    if ( ! class_exists( 'Amazon_S3_And_CloudFront_Pro' ) ) {
        return;
    }

    add_filter( 'as3cf_ignored_mime_types', 'wpos3_oembed_lib_ignore_mime_types' );
}
add_action( 'init', 'wpos3_oembed_lib_init' );

/**
 * Ignore certain mime types from get_attachments_to_upload()
 *
 * @param array $ignored_mime_types
 *
 * @return array
 */
function wpos3_oembed_lib_ignore_mime_types( $ignored_mime_types = array() ) {
	$ignored_mime_types = is_array( $ignored_mime_types ) ? $ignored_mime_types : array();

	if ( class_exists( 'OEmbedInLibrary' ) ) {
		$saved_mime_types = get_site_transient( 'wpos3_oembed_lib_ignored_mime_types' );

		if ( ! $saved_mime_types || ! is_array( $saved_mime_types ) ) {
			global $wpdb;

			$mime_types = $wpdb->get_results( "SELECT post_mime_type FROM $wpdb->posts WHERE `post_mime_type` LIKE '%oembed/%'", ARRAY_A );

			if ( is_array( $mime_types ) ) {
				$mime_types_to_ignore = wp_list_pluck( $mime_types, 'post_mime_type' );
				$ignored_mime_types   = array_unique( array_merge( $mime_types_to_ignore, $ignored_mime_types ) );
			}

			set_site_transient( 'wpos3_oembed_lib_ignored_mime_types', $ignored_mime_types, DAY_IN_SECONDS );
		} else {
			$ignored_mime_types = array_unique( array_merge( $saved_mime_types, $ignored_mime_types ) );
		}
	}

	return $ignored_mime_types;
}