http://sourceforge.net/projects/ffmpeg-examples/
Nothing elaborate here, just some examples with ffmpeg. But they are supposed to build under Linux, and the author said they were done in cdt. It may be worth searching more on places like sourceforge for things like this.
http://sourceforge.net/projects/gcov-eclipse/ You mention testing with other plugins. Not sure how mature this one is, but it sounds like one that would be interesting to test with cdt. :)