adding advertising clips for HTML5 videoPlayer

I'm using HTML 5 video player and I need to add advertising clips at the begging of my videos . Is it possible to do that?If so ,How should I do that?

Thanks

Very large question, many solutions!

It's very hard to implement it yourself but, for exemple, VideoJS (free HTML5 video player) with the plugin "contrib-ads" fill your needs.

• VideoJS: http://videojs.com/
• VideoJS ads-contrib: https://github.com/videojs/videojs-contrib-ads

Hope this help you.