wp-includes/media.php:3612Returns a filtered list of supported video formats.
string[]One hook fires while wp_get_video_extensions() runs, in this order:
Filters the list of supported video formats.
function wp_get_video_extensions() { /** * Filters the list of supported video formats. * * @since 3.6.0 * * @param string[] $extensions An array of supported video formats. Defaults are * 'mp4', 'm4v', 'webm', 'ogv', 'flv'. */ return apply_filters( 'wp_video_extensions', array( 'mp4', 'm4v', 'webm', 'ogv', 'flv' ) );}Introduced in 3.6.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/media.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.