Customizing how videos are embedded within an RTE

Within Umbraco 7, when working with the embed option in an RTE, When an editor clicks on the embed icon, I would like RTE to add an iframe video source code like this…

<div class="embed-responsive embed-responsive-16by9">
<iframe class="embed-responsive-item" width="..." height="..." src="the-youtube-video-address" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
</div>

This is Bootstrap’s formula for responsive video embeds. I don’t want editors to put in this code manually every-time when they need to add a video. I would prefer for this code to automatically load into the RTE when an editor clicks the embed icon option.

Is this possible?


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/90631-customizing-how-videos-are-embedded-within-an-rte