Merge commit '5bf208f6'

* commit '5bf208f6':
  jpeg2000: Use separate fields for int and float codepaths
  jpeg2000: Split int/float codepaths depending on the DWT

Conflicts:
	libavcodec/jpeg2000.c
	libavcodec/jpeg2000dec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>