Media sources can now be searched

Media sources can now implement search. By adding an async_search_media method to your MediaSource, users can search through your media directly from the media browser.

from homeassistant.components.media_player import SearchMedia, SearchMediaQuery

async def async_search_media(
    self, item: MediaSourceItem, query: SearchMediaQuery
) -> SearchMedia:
    """Search media."""
    results = [...]  # list of BrowseMediaSource items
    return SearchMedia(result=results)

To tell the media browser which items can be searched, set the can_search flag to True on the BrowseMediaSource items you return while browsing (typically directories). Other integrations can trigger a search through the new media_source.async_search_media helper.

For more info, see the updated documentation.