wp-includes/theme.php:1657Retrieves header video URL for custom header.
string|falseOne hook fires while get_header_video_url() runs, in this order:
Filters the header video URL.
function get_header_video_url() { $id = absint( get_theme_mod( 'header_video' ) ); if ( $id ) { // Get the file URL from the attachment ID. $url = wp_get_attachment_url( $id ); } else { $url = get_theme_mod( 'external_header_video' ); } /** * Filters the header video URL. * * @since 4.7.3 * * @param string $url Header video URL, if available. */ $url = apply_filters( 'get_header_video_url', $url ); if ( ! $id && ! $url ) { return false; } return sanitize_url( set_url_scheme( $url ) );}Introduced in 4.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/theme.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.