* commit '84f2847d':
  xl: return a meaningful error code.
  xan: return a meaningful error code.
  xxan: return meaningful error codes.
  zmbv: return more meaningful error codes.
  yop: use a meaningful error code.
  c93: return meaningful error codes.
  bmv: return meaningful error codes.
  bmp: return meaningful error codes.
  bink: operate with pointers to AVFrames instead of whole structs.
  bink: return meaningful error codes.
  bfi: return meaningful error codes.
  bethsoftvideo: return meaningful error codes.

Conflicts:
	libavcodec/c93.c
	libavcodec/xl.c
	libavcodec/xxan.c
	libavcodec/yop.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>