Merge remote-tracking branch 'qatar/master'

* qatar/master:
  Use deinterleavers for demangling audio packets in RealMedia.
  vf_scale: don't leak SWS context.
  doxygen: drop another pointless star from pointer variable name

Merged-by: Michael Niedermayer <michaelni@gmx.at>

diff --cc libavformat/rmdec.c
Simple merge

diff --cc libavutil/fifo.h
Simple merge