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

3775	 *3776	 * @param string $html     Empty variable to be replaced with shortcode markup.3777	 * @param array  $attr     Attributes of the shortcode. See {@see wp_video_shortcode()}.3778	 * @param string $content  Video shortcode content.3779	 * @param int    $instance Unique numeric ID of this video shortcode instance.3780	 */3781	$override = apply_filters( 'wp_video_shortcode_override', '', $attr, $content, $instance );3782 3783	if ( '' !== $override ) {3784		return $override;3785	}3786 3787	$video = null;