The plugin uses the Essence library to extend Vanilla's already sublime media embed capabilities. Check out the Essence documentation for a list of the supported providers.
If you come across any bugs or if you have a feature request, please file an issue using the GitHub Issue tracker. OEmbed for Vanilla won't be supported through http://vanillaforums.org so please stick to using GitHub for inquiries about bugs and feature requests. Thanks!
File a new issue or feature request