Hi,
The embedded video integration is displayed when you are in Html source code (mirror code). But when you want to embed a video with the TinyMCE editor by inserting a media, the functionality does not work.
Moreover, if I modify an article with the Tiny editor and I have embedded the ifram in mirror code, the ifram disappears. It is removed by Tiny.

Thanks for your help

Hello, its a Joomla problem.
The Joomla Tiny Editor always delete unknown HTML code like iframes.
Please use Google search how to manage it.