VOOplayer is a video player for WordPress that allows you to fully-customize, analyze and optimize your videos (including .flv, mp4, youtube and any other self-hosted videos you may want to publish) on you WordPress site. There are free and premium versions.
Add unlimited clickable text overlays and buttons (at any given moment!)
Add opt-in forms inside your videos
Set up split-tests to see what video performs best
See average completion rate and exit points (who watches the whole video, and when do they leave)
Automatically redirect visitors to any URL when they finish watching the video
Show a clickable image ad when users pause the video
Set it to auto-pause the video when users leave your page, then continue the video when they return.
Lock your video content at a particular time and ask viewers to share it on social sites to continue.
Plugin homepage: http://www.vooplayer.com/