schaermu/node-fluent-ffmpeg — pull request #128 by stf1981 (2013-06-27 15:09:07+00:00)
Title: Added a new config option to "takeScreenshots" function to use your own fileextension instead of ".jpg", default is already ".jpg"

I don't know how useful is this for other people. We need that for our application and i want to share it :-)