Tessell is available in the
Note Tessell has very frequent releases, so these will be out of date; check the repo for the latest.
For integrating Tessell into your project, see getting started.
Note if you have problems on FF/Ubuntu with stream not found, you might try installing the Flash-Aid extension and using a Flayer directly from Adobe. See this forum thread about FF/Flowplayer issues.
Tessell is licensed under the Apache Software License and available on github: tessell.
Following the github project is also the best way to stay in the loop on changes.