WordPress save youtube or vimeo thumbnail as featured image

How to save youtube or vimeo thumbnail as featured image of wordpress post.For a examaple if you add the video url as custom meta data or post content you need to get it’s video thumbnail and save it as featured image automatically.
This post is discussing how to save youtube vimeo thumbnail as featured image in wordpress post or page or custom post types.

Continue reading WordPress save youtube or vimeo thumbnail as featured image