Original commit message from CVS:
I don't know how I ever got to introducing this madness, but I was wrong. *REALLY* wrong. It hasn't even worked, it still doesn't work and it will never work because the whole concept of doing a multifile output in filesink is completely braindead. Signal EOS, close file, set new filename and reset to PLAYING is so much easier. This patch removes all the multifile output cruft that I introduced and makes filesink simply work.