* qatar/master:
  dsicinvideo: validate buffer offset before copying pixels.
  cook: error out on quant_index values outside [-63, 63] range.
  mpc: pad mpc_CC/SCF[] tables to allow for negative indices.

Conflicts:
	libavcodec/cook.c
	libavcodec/dsicinav.c
	libavcodec/mpc.c
	libavcodec/mpc7.c
	libavcodec/mpcdata.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>