How to play two or more videos side by side in a syncronized fashion in Linux?

Posted by Grumbel on Super User See other posts from Super User or by Grumbel
Published on 2010-05-10T10:47:51Z Indexed on 2010/05/10 10:55 UTC
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linux

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ubuntu

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video

I have two (or more) video files that I want to play side by side. I could do that simply by opening them in two seperate windows, but that would also seperate all the controls (play/pause/forward/...). I want to play them in a synchronized fashion so that pause/forwarding/... works on both videos simultaneously so that they always stay at the same timecode and they don't go out of sync. How would I accomplish that in Linux?

This is needed for viewing only, so compositing them into a new video file first should be avoided if possible, but if there isn't an easy way to do that, I welcome answers doing it with composition as well.

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