Source
File: wp-includes/embed.php
function wp_embed_handler_video( $matches, $attr, $url, $rawattr ) {
$dimensions = '';
if ( ! empty( $rawattr['width'] ) && ! empty( $rawattr['height'] ) ) {
$dimensions .= sprintf( 'width="%d" ', (int) $rawattr['width'] );
$dimensions .= sprintf( 'height="%d" ', (int) $rawattr['height'] );
}
$video = sprintf( '[video %s src="%s" /]', $dimensions, esc_url( $url ) );
/**
* Filters the video embed output.
*
* @since 3.6.0
*
* @param string $video Video embed output.
* @param array $attr An array of embed attributes.
* @param string $url The original URL that was matched by the regex.
* @param array $rawattr The original unmodified attributes.
*/
return apply_filters( 'wp_embed_handler_video', $video, $attr, $url, $rawattr );
}