the_custom_header_markup() WordPress Function

function the_custom_header_markup() {
	$custom_header = get_custom_header_markup();
	if ( empty( $custom_header ) ) {
		return;
	}

	echo $custom_header;

	if ( is_header_video_active() && ( has_header_video() || is_customize_preview() ) ) {
		wp_enqueue_script( 'wp-custom-header' );
		wp_localize_script( 'wp-custom-header', '_wpCustomHeaderSettings', get_header_video_settings() );
	}
}
Uses	Description
wp-includes/theme.php:get_custom_header_markup()	Retrieves the markup for a custom header.
wp-includes/theme.php:is_header_video_active()	Checks whether the custom header video is eligible to show on the current page.
wp-includes/theme.php:has_header_video()	Checks whether a header video is set or not.
wp-includes/theme.php:get_header_video_settings()	Retrieves header video settings.
wp-includes/theme.php:is_customize_preview()	Whether the site is being previewed in the Customizer.
wp-includes/functions.wp-scripts.php:wp_enqueue_script()	Enqueue a script.
wp-includes/functions.wp-scripts.php:wp_localize_script()	Localize a script.