Filters the image URL sent to the editor.

Filters the list of allowed file extensions when sideloading an image from a URL.

Filters the names and labels of the default image sizes.

Filters the legacy (pre-3.5.0) media buttons.

Filters the media metadata.

Filters the HTML markup for a media item sent to the editor.

Filters the audio and video metadata fields to be shown in the publish meta box.

Filters the media upload form action URL.

Filters the media upload mime type list items.

Filters the available tabs in the legacy (pre-3.5.0) media popup.