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

3637	 *3638	 * @param string $html     Empty variable to be replaced with shortcode markup.3639	 * @param array  $attr     Attributes of the shortcode. See {@see wp_video_shortcode()}.3640	 * @param string $content  Video shortcode content.3641	 * @param int    $instance Unique numeric ID of this video shortcode instance.3642	 */3643	$override = apply_filters( 'wp_video_shortcode_override', '', $attr, $content, $instance );3644 3645	if ( '' !== $override ) {3646		return $override;3647	}3648 3649	$video = null;