This is an add-on field for the Advanced Custom Fields plugin. It allows you to capture YouTube data from a single input field and return it in a variety of ways. View Plugin.
As of ACF YouTube Field version 1.2 it is required to have a YouTube API Key. This doc shows you how to get it.
A breakdown of the video object properties.
A list of the available hooks you can use to make this plugin even more useful.
As of version 1.2 you can get even more data from the YouTube Data API V3. Here’s how!
Returns an object with all available thumbnail urls.