* commit '488f87be':
  roqvideodec: check dimensions validity
  vqavideo: check chunk sizes before reading chunks
  qdm2: check array index before use, fix out of array accesses

Conflicts:
	libavcodec/qdm2.c
	libavcodec/roqvideodec.c
	libavcodec/vqavideo.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>