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

3591	 *3592	 * @param string $html     Empty variable to be replaced with shortcode markup.3593	 * @param array  $attr     Attributes of the shortcode. See {@see wp_video_shortcode()}.3594	 * @param string $content  Video shortcode content.3595	 * @param int    $instance Unique numeric ID of this video shortcode instance.3596	 */3597	$override = apply_filters( 'wp_video_shortcode_override', '', $attr, $content, $instance );3598 3599	if ( '' !== $override ) {3600		return $override;3601	}3602 3603	$video = null;