Jpeg: more precise definition of int types
Jpeg: more precise definition of int types

Tighter definition of int types, tightening of code, improved
change to type definition for win32 compilation

Signed-off-by: Jean-Baptiste Kempf <7b85a41a628204b76aba4326273a3ccc74bd009a@videolan.org>

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc