FlareVideo is an open source and free HTML5 video player that falls back to Flash for incompatible browsers.
The player can be customized easily using CSS-HTML and JS with its theming support (and already ships with 3 themes: default, spotify and Vimeo).
FlareVideo Player Features:
- HTML5 video with Flash fallback
- Easy CSS/HTML/JS customization and theming
- Full screen support
- Completely open source and free for commercial use
It is built on jQuery + jQuery UI and supports: