Glint is a project mainly written in JavaScript, it's free.
A tiny HTML5 video player
A tiny HTML5 video player for Chrome/Safari/FF4/Opera10/IE9.
Include glint.js
in your page and wrap video elements the following way:
<div class="glint-video-player">
<video>...</video>
</div>
Finally call setup:
<script> glint.setup('video'); </script>