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

3618	 *3619	 * @param string $html     Empty variable to be replaced with shortcode markup.3620	 * @param array  $attr     Attributes of the shortcode. See {@see wp_video_shortcode()}.3621	 * @param string $content  Video shortcode content.3622	 * @param int    $instance Unique numeric ID of this video shortcode instance.3623	 */3624	$override = apply_filters( 'wp_video_shortcode_override', '', $attr, $content, $instance );3625 3626	if ( '' !== $override ) {3627		return $override;3628	}3629 3630	$video = null;