Re: [Flightgear-bugs] Issue 950 in flightgear-bugs: Add video "save/export" capability to instant replay

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Comment #5 on issue 950 by wonco...@gmail.com: Add video "save/export"  
capability to instant replay
http://code.google.com/p/flightgear-bugs/issues/detail?id=950

WRT "natural place": It may seem natural/intuitive to you, but actually  
the "replay" feature doesn't do any screen capturing at all.

It's basically just a "property recorder" that samples properties over a  
certain period of time and then literally REPLAYS the flight by using the  
raw flight data, NOT some captured video stream.

Which is exactly the reason why you are able to switch views, zoom in/out,  
change weather settings and even interrupt/continue a flight by taking  
controls.

So conventional video editing is a completely different thing, even though  
some replay system's features like panning and zooming may seem identical.

In order to literally capture the screen and save the flight as a video  
that can be viewed without requiring FG, one would really need to write  
each frame to a buffer and turn that into some known video format via  
conversion/encoding.