So far, I've done simple video blending using OpenGL together with ffmpeg to decode the video stream(s) and re-encode the output stream. I haven't seen any convenient (free / open source) video editor to easily mix two video streams or do a split-screen setup. You could use http://youtubedoubler.com/ or a setup like this.

As a solution for conferences, I would go for "live recording" of such talks by simultaneously recording the presenters screen and one or two video sources, and also having a director who selects what screen to "show" when. Then, the mix of the final video can be generated offline from the (synchronized) stream sources. This would address the fact that there is far too little time outside of conferences to polish the content produced there.

In reply to Re: Blending videosources of perl talks... by Corion
in thread (OT) Blending videosources of perl talks... by LanX

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