How to make ffmpeg write its output to a named pipe

Question

I know i can make ffmpeg put its output to stdout and stderr using pipe:1 and pipe:2, respectively, as

Answer 1

@ab77 answer is spot on except for one major thing that I encountered myself. I do not know if this happens on Linux or other *nix'es but on Mac OS X if you do not put the appropriate extension on the pipe name then it will not pipe. So if the output format is mpeg then the pipe shold be name outpipe.mpg for instance.