Josh Betz

This plugin gets the current dimensions of the video you post and increases them to a set width and increases the height accordingly, keeping the same width-height ratio as the original player.

Resize Vimeo

lepileppanen

luuptek

Responsive video embed plugin is a lightweight and simple video embedding plugin that will create responsive video embeds to your site.
It is possible to create responsive video embed by:
1) Simply copy pasting embed video URL into editor
2) Using a shortcode manually
[rve src=”embed video url” ratio=”video aspect ratio”]
src = URL of the embedded video
ratio = either ’16by9′ / ‘4by3′ / ’21by9’ / ‘1by1’ (optional), 16by9 is by default
3) Using the shortcode automatically by clicking on Embed video button and typing in video embed URL and selecting aspect ratio.

Responsive video embed

Enables you three simple ways to embed responsive video into your content.

Resize Vimeo vs Responsive video embed