raw_html_filter.php

<?php

/**
 * Make the `vc_raw_html` shortcodes content available to the video seo plugin for indexing.
 * 
 * @param string $content The post content
 * 
 * @return string
 */
function yst_make_raw_html_detectable( $content ) {
	preg_match_all( '/(\[vc_raw_html\](.*)\[\/vc_raw_html\])?/', $content, $matches, PREG_SET_ORDER );
	foreach ( $matches as $match ) {
		if ( isset( $matches[2] ) ) {
			$content = str_replace( $match[0], urldecode( base64_decode( $match[2] ) ), $content );
		}
	}
	
	return $content;
}
add_filter( 'wpseo_video_index_content', 'yst_make_raw_html_detectable' );