xref: /openbsd-src/usr.bin/file/magdir/iff (revision b2ea75c1b17e1a9a339660e7ed45cd24946b230e)
1
2#------------------------------------------------------------------------------
3# iff:	file(1) magic for Interchange File Format (see also "audio" & "images")
4#
5# Daniel Quinlan (quinlan@yggdrasil.com) -- IFF was designed by Electronic
6# Arts for file interchange.  It has also been used by Apple, SGI, and
7# especially Commodore-Amiga.
8#
9# IFF files begin with an 8 byte FORM header, followed by a 4 character
10# FORM type, which is followed by the first chunk in the FORM.
11
120	string		FORM		IFF data
13#>4	belong		x		\b, FORM is %d bytes long
14# audio formats
15>8	string		AIFF		\b, AIFF audio
16>8	string		AIFC		\b, AIFF-C compressed audio
17>8	string		8SVX		\b, 8SVX 8-bit sampled sound voice
18>8	string		SAMP		\b, SAMP sampled audio
19# image formats
20>8	string		ILBMBMHD	\b, ILBM interleaved image
21>>20	beshort		x		\b, %d x
22>>22	beshort		x		%d
23>8	string		RGBN		\b, RGBN 12-bit RGB image
24>8	string		RGB8		\b, RGB8 24-bit RGB image
25>8	string		DR2D		\b, DR2D 2-D object
26>8	string		TDDD		\b, TDDD 3-D rendering
27# other formats
28>8	string		FTXT		\b, FTXT formatted text
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