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copied!<p>Firstly, I might suggest only capturing a small part of the screen, rather than downscaling and potentially losing information, perhaps with something like a sliding window which can be moved around by pushing the edges with a cursor. This is really just a small design suggestion though.</p> <p>As for compression, I would think that a series of images would not compress separately as well as with a decent video compression scheme, especially as frames are likely to remain consistent between captures in this scenario.</p> <p>One option would be to use Xuggle, which is capable of capturing the desktop via Robot in a number of video formats afaiu, but I can't tell if you can stream and decode with this.</p> <p>For capturing jpegs and converting them, then you can also use <a href="http://www.koders.com/java/fid8AE9208DC5FB846910DFD3F935D64E7C9A5BB784.aspx?s=jpegimagestomovie.java#L4" rel="nofollow">this</a>.</p> <p>Streaming these videos seems to be a little more complicated, though.</p> <p>Also, it seems that the abandoned Java Media Framework supports this functionality.</p> <p>My knowledge in this area is not fantastic tbh, so sorry if I have wasted your time, but it looks like some more useful information on the feasibility of using Xuggle as a screensharer has been compiled <a href="http://wiki.xuggle.com/Xuggle_Screensharing_Implementation" rel="nofollow">here</a>. This also appears to link to their own notes on existing approaches.</p> <p>If it doesn't need to be pure Java I reckon this would all be much easier using just by interfacing with a native screen capture tool...</p> <p>Maybe it would be easiest just to send video as a series of jpegs after all! You could always implement your own compression scheme if you were feeling a little crazy...</p>

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