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function is not described

wp_filter_pre_oembed_result() WP 4.5.3

Filters the oEmbed result before any HTTP requests are made.

If the URL belongs to the current site, the result is fetched directly instead of going through the oEmbed discovery process.

No Hooks.

Return

null/String. The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. Null if the URL does not belong to the current site.

Usage

wp_filter_pre_oembed_result( $result, $url, $args );
$result(null/string) (required)
The UNSANITIZED (and potentially unsafe) HTML that should be used to embed.
Default: null
$url(string) (required)
The URL that should be inspected for discovery <link> tags.
$args(array) (required)
oEmbed remote get arguments.

Changelog

Since 4.5.3 Introduced.

Code of wp filter pre oembed result: wp-includes/embed.php WP 5.2.2

<?php
function wp_filter_pre_oembed_result( $result, $url, $args ) {
	$data = get_oembed_response_data_for_url( $url, $args );

	if ( $data ) {
		return _wp_oembed_get_object()->data2html( $data, $url );
	}

	return $result;
}