#17 Support for 'dummy' wave input via pipe in flaccl

[Selur]

Since I'd like to use flacl in a console and feeding it through a pipe, it would be nice if flaccl would support 'dummy' wave files like sox sends them out via pipe.
To be a bit more precise I decode a source using ffmpeg pipe the output to sox, so all my filtering through sox and then pipe to flaccl, see: http://forum.doom9.org/showthread.php?t=167831

Cu Selur