riff revision 80588 
1
2#------------------------------------------------------------------------------
3# riff:  file(1) magic for RIFF format
4# See
5#
6#	http://www.seanet.com/users/matts/riffmci/riffmci.htm
7#
8# and
9#
10#	http://www.ora.com/centers/gff/formats/micriff/index.htm
11#
12# and
13#
14#	http://www.jtauber.com/music/encoding/niff/spec/
15#
160	string		RIFF		RIFF (little-endian) data
17# RIFF Palette format
18>8	string		PAL		\b, palette
19>>16	leshort		x		\b, version %d
20>>18	leshort		x		\b, %d entries
21# RIFF Device Independent Bitmap format
22>8	string		RDIB		\b, device-independent bitmap
23>>16	string		BM		
24>>>30	leshort		12		\b, OS/2 1.x format
25>>>>34	leshort		x		\b, %d x
26>>>>36	leshort		x		%d
27>>>30	leshort		64		\b, OS/2 2.x format
28>>>>34	leshort		x		\b, %d x
29>>>>36	leshort		x		%d
30>>>30	leshort		40		\b, Windows 3.x format
31>>>>34	lelong		x		\b, %d x
32>>>>38	lelong		x		%d x
33>>>>44	leshort		x		%d
34# RIFF MIDI format
35>8	string		RMID		\b, MIDI
36# RIFF Multimedia Movie File format
37>8	string		RMMP		\b, multimedia movie
38# Microsoft WAVE format (*.wav)
39>8	string		WAVE		\b, WAVE audio
40>>20	leshort		1		\b, Microsoft PCM
41>>>34	leshort		>0		\b, %d bit
42>>20	leshort		2		\b, Microsoft ADPCM
43>>20	leshort		6		\b, ITU G.711 a-law
44>>20	leshort		7		\b, ITU G.711 u-law
45>>20	leshort		17		\b, IMA ADPCM
46>>20	leshort		20		\b, ITU G.723 ADPCM (Yamaha)
47>>20	leshort		49		\b, GSM 6.10
48>>20	leshort		64		\b, ITU G.721 ADPCM
49>>20	leshort		80		\b, MPEG
50>>20	leshort		85		\b, MPEG Layer 3
51>>22	leshort		=1		\b, mono
52>>22	leshort		=2		\b, stereo
53>>22	leshort		>2		\b, %d channels
54>>24	lelong		>0		%d Hz
55# AVI == Audio Video Interleave
56>8      string          AVI\            \b, AVI
57# Animated Cursor format
58>8	string		ACON		\b, animated cursor
59
60#
61# XXX - some of the below may only appear in little-endian form.
62#
63# Also "MV93" appears to be for one form of Macromedia Director
64# files, and "GDMF" appears to be another multimedia format.
65#
660	string		RIFX		RIFF (big-endian) data
67# RIFF Palette format
68>8	string		PAL		\b, palette
69>>16	beshort		x		\b, version %d
70>>18	beshort		x		\b, %d entries
71# RIFF Device Independent Bitmap format
72>8	string		RDIB		\b, device-independent bitmap
73>>16	string		BM		
74>>>30	beshort		12		\b, OS/2 1.x format
75>>>>34	beshort		x		\b, %d x
76>>>>36	beshort		x		%d
77>>>30	beshort		64		\b, OS/2 2.x format
78>>>>34	beshort		x		\b, %d x
79>>>>36	beshort		x		%d
80>>>30	beshort		40		\b, Windows 3.x format
81>>>>34	belong		x		\b, %d x
82>>>>38	belong		x		%d x
83>>>>44	beshort		x		%d
84# RIFF MIDI format
85>8	string		RMID		\b, MIDI
86# RIFF Multimedia Movie File format
87>8	string		RMMP		\b, multimedia movie
88# Microsoft WAVE format (*.wav)
89>8	string		WAVE		\b, WAVE audio
90>>20	leshort		1		\b, Microsoft PCM
91>>>34	leshort		>0		\b, %d bit
92>>22	beshort		=1		\b, mono
93>>22	beshort		=2		\b, stereo
94>>22	beshort		>2		\b, %d channels
95>>24	belong		>0		%d Hz
96# AVI == Audio Video Interleave
97>8      string          AVI\            \b, AVI
98# Animated Cursor format
99>8	string		ACON		\b, animated cursor
100# Notation Interchange File Format (big-endian only)
101>8	string		NIFF		\b, Notation Interchange File Format
102
103# SoundFont 2 <mpruett@sgi.com>
104>8	string		sfbk		SoundFont 2
105