#	$OpenBSD: iff,v 1.4 2009/04/24 18:54:34 chl Exp $

#------------------------------------------------------------------------------
# iff:	file(1) magic for Interchange File Format (see also "audio" & "images")
#
# Daniel Quinlan (quinlan@yggdrasil.com) -- IFF was designed by Electronic
# Arts for file interchange.  It has also been used by Apple, SGI, and
# especially Commodore-Amiga.
#
# IFF files begin with an 8 byte FORM header, followed by a 4 character
# FORM type, which is followed by the first chunk in the FORM.

0	string		FORM		IFF data
#>4	belong		x		\b, FORM is %d bytes long
# audio formats
>8	string		AIFF		\b, AIFF audio
!:mime	audio/x-aiff
>8	string		AIFC		\b, AIFF-C compressed audio
!:mime	audio/x-aiff
>8	string		8SVX		\b, 8SVX 8-bit sampled sound voice
!:mime	audio/x-aiff
>8	string		16SV		\b, 16SV 16-bit sampled sound voice
>8	string		SAMP		\b, SAMP sampled audio
>8	string		MAUD		\b, MAUD MacroSystem audio
>8	string		SMUS		\b, SMUS simple music
>8	string		CMUS		\b, CMUS complex music
# image formats
>8	string		ILBMBMHD	\b, ILBM interleaved image
>>20	beshort		x		\b, %d x
>>22	beshort		x		%d
>8	string		RGBN		\b, RGBN 12-bit RGB image
>8	string		RGB8		\b, RGB8 24-bit RGB image
>8	string		DEEP		\b, DEEP TVPaint/XiPaint image
>8	string		DR2D		\b, DR2D 2-D object
>8	string		TDDD		\b, TDDD 3-D rendering
>8	string		LWOB		\b, LWOB 3-D object
>8	string		LWO2		\b, LWO2 3-D object, v2
>8	string		LWLO		\b, LWLO 3-D layered object
>8	string		REAL		\b, REAL Real3D rendering
>8	string		MC4D		\b, MC4D MaxonCinema4D rendering
>8	string		ANIM		\b, ANIM animation
>8	string		YAFA		\b, YAFA animation
>8	string		SSA\ 		\b, SSA super smooth animation
>8	string		ACBM		\b, ACBM continuous image
>8	string		FAXX		\b, FAXX fax image
# other formats
>8	string		FTXT		\b, FTXT formatted text
>8	string		CTLG		\b, CTLG message catalog
>8	string		PREF		\b, PREF preferences
>8	string		DTYP		\b, DTYP datatype description
>8	string		PTCH		\b, PTCH binary patch
>8	string		AMFF		\b, AMFF AmigaMetaFile format
>8	string		WZRD		\b, WZRD StormWIZARD resource
>8	string		DOC\ 		\b, DOC desktop publishing document

# These go at the end of the iff rules
#
# I don't see why these might collide with anything else.
#
# Interactive Fiction related formats
#
>8	string		IFRS		\b, Blorb Interactive Fiction
>>24	string		Exec		with executable chunk
>8	string          IFZS		\b, Z-machine or Glulx saved game file (Quetzal)