apply_filters( 'wp_video_shortcode_override', string $html, array $attr, string $content, int $instance )

3668	 *3669	 * @param string $html     Empty variable to be replaced with shortcode markup.3670	 * @param array  $attr     Attributes of the shortcode. See {@see wp_video_shortcode()}.3671	 * @param string $content  Video shortcode content.3672	 * @param int    $instance Unique numeric ID of this video shortcode instance.3673	 */3674	$override = apply_filters( 'wp_video_shortcode_override', '', $attr, $content, $instance );3675 3676	if ( '' !== $override ) {3677		return $override;3678	}3679 3680	$video = null;