Merge commit '3d95d27376e59de14f984e7a22a52e066d85df35'

* commit '3d95d27376e59de14f984e7a22a52e066d85df35':
  audio_mix: initialize the data pointers to NULL

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

diff --cc libavresample/audio_mix.c
Simple merge