wp-includes/embed.php:191Determines if default embed handlers should be loaded.
3 hooks fire while wp_maybe_load_embeds() runs, in this order:
Filters whether to load the default embed handlers.
Filters the audio embed handler callback.
Filters the video embed handler callback.
function wp_maybe_load_embeds() { /** * Filters whether to load the default embed handlers. * * Returning a falsey value will prevent loading the default embed handlers. * * @since 2.9.0 * * @param bool $maybe_load_embeds Whether to load the embeds library. Default true. */ if ( ! apply_filters( 'load_default_embeds', true ) ) { return; } wp_embed_register_handler( 'youtube_embed_url', '#https?://(www.)?youtube\.com/(?:v|embed)/([^/]+)#i', 'wp_embed_handler_youtube' ); /** * Filters the audio embed handler callback. * * @since 3.6.0 * * @param callable $handler Audio embed handler callback function. */ wp_embed_register_handler( 'audio', '#^https?://.+?\.(' . implode( '|', wp_get_audio_extensions() ) . ')$#i', apply_filters( 'wp_audio_embed_handler', 'wp_embed_handler_audio' ), 9999 ); /** * Filters the video embed handler callback. * * @since 3.6.0 * * @param callable $handler Video embed handler callback function. */ wp_embed_register_handler( 'video', '#^https?://.+?\.(' . implode( '|', wp_get_video_extensions() ) . ')$#i', apply_filters( 'wp_video_embed_handler', 'wp_embed_handler_video' ), 9999 );}Introduced in 2.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/embed.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.