| blob | 4fffafacf31fa60649acb4c99afed565923b44f9 |
2 #------------------------------------------------------------------------------
3 # $File: riff,v 1.22 2011/09/06 11:00:06 christos Exp $
4 # riff: file(1) magic for RIFF format
5 # See
6 #
7 # http://www.seanet.com/users/matts/riffmci/riffmci.htm
8 #
9 # AVI section extended by Patrik Rådman <patrik+file-magic@iki.fi>
10 #
11 0 string RIFF RIFF (little-endian) data
12 # RIFF Palette format
13 >8 string PAL \b, palette
14 >>16 leshort x \b, version %d
15 >>18 leshort x \b, %d entries
16 # RIFF Device Independent Bitmap format
17 >8 string RDIB \b, device-independent bitmap
18 >>16 string BM
19 >>>30 leshort 12 \b, OS/2 1.x format
20 >>>>34 leshort x \b, %d x
21 >>>>36 leshort x %d
22 >>>30 leshort 64 \b, OS/2 2.x format
23 >>>>34 leshort x \b, %d x
24 >>>>36 leshort x %d
25 >>>30 leshort 40 \b, Windows 3.x format
26 >>>>34 lelong x \b, %d x
27 >>>>38 lelong x %d x
28 >>>>44 leshort x %d
29 # RIFF MIDI format
30 >8 string RMID \b, MIDI
31 # RIFF Multimedia Movie File format
32 >8 string RMMP \b, multimedia movie
33 # RIFF wrapper for MP3
34 >8 string RMP3 \b, MPEG Layer 3 audio
35 # Microsoft WAVE format (*.wav)
36 >8 string WAVE \b, WAVE audio
37 !:mime audio/x-wav
38 >>20 leshort 1 \b, Microsoft PCM
39 >>>34 leshort >0 \b, %d bit
40 >>20 leshort 2 \b, Microsoft ADPCM
41 >>20 leshort 6 \b, ITU G.711 A-law
42 >>20 leshort 7 \b, ITU G.711 mu-law
43 >>20 leshort 8 \b, Microsoft DTS
44 >>20 leshort 17 \b, IMA ADPCM
45 >>20 leshort 20 \b, ITU G.723 ADPCM (Yamaha)
46 >>20 leshort 49 \b, GSM 6.10
47 >>20 leshort 64 \b, ITU G.721 ADPCM
48 >>20 leshort 80 \b, MPEG
49 >>20 leshort 85 \b, MPEG Layer 3
50 >>20 leshort 0x2001 \b, DTS
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 # Corel Draw Picture
56 >8 string CDRA \b, Corel Draw Picture
57 !:mime image/x-coreldraw
58 # AVI == Audio Video Interleave
59 >8 string AVI\040 \b, AVI
60 !:mime video/x-msvideo
61 >>12 string LIST
62 >>>20 string hdrlavih
63 >>>>&36 lelong x \b, %lu x
64 >>>>&40 lelong x %lu,
65 >>>>&4 lelong >1000000 <1 fps,
66 >>>>&4 lelong 1000000 1.00 fps,
67 >>>>&4 lelong 500000 2.00 fps,
68 >>>>&4 lelong 333333 3.00 fps,
69 >>>>&4 lelong 250000 4.00 fps,
70 >>>>&4 lelong 200000 5.00 fps,
71 >>>>&4 lelong 166667 6.00 fps,
72 >>>>&4 lelong 142857 7.00 fps,
73 >>>>&4 lelong 125000 8.00 fps,
74 >>>>&4 lelong 111111 9.00 fps,
75 >>>>&4 lelong 100000 10.00 fps,
76 # ]9.9,10.1[
77 >>>>&4 lelong <101010
78 >>>>>&-4 lelong >99010
79 >>>>>>&-4 lelong !100000 ~10 fps,
80 >>>>&4 lelong 83333 12.00 fps,
81 # ]11.9,12.1[
82 >>>>&4 lelong <84034
83 >>>>>&-4 lelong >82645
84 >>>>>>&-4 lelong !83333 ~12 fps,
85 >>>>&4 lelong 66667 15.00 fps,
86 # ]14.9,15.1[
87 >>>>&4 lelong <67114
88 >>>>>&-4 lelong >66225
89 >>>>>>&-4 lelong !66667 ~15 fps,
90 >>>>&4 lelong 50000 20.00 fps,
91 >>>>&4 lelong 41708 23.98 fps,
92 >>>>&4 lelong 41667 24.00 fps,
93 # ]23.9,24.1[
94 >>>>&4 lelong <41841
95 >>>>>&-4 lelong >41494
96 >>>>>>&-4 lelong !41708
97 >>>>>>>&-4 lelong !41667 ~24 fps,
98 >>>>&4 lelong 40000 25.00 fps,
99 # ]24.9,25.1[
100 >>>>&4 lelong <40161
101 >>>>>&-4 lelong >39841
102 >>>>>>&-4 lelong !40000 ~25 fps,
103 >>>>&4 lelong 33367 29.97 fps,
104 >>>>&4 lelong 33333 30.00 fps,
105 # ]29.9,30.1[
106 >>>>&4 lelong <33445
107 >>>>>&-4 lelong >33223
108 >>>>>>&-4 lelong !33367
109 >>>>>>>&-4 lelong !33333 ~30 fps,
110 >>>>&4 lelong <32224 >30 fps,
111 ##>>>>&4 lelong x (%lu)
112 ##>>>>&20 lelong x %lu frames,
113 # Note: The tests below assume that the AVI has 1 or 2 streams,
114 # "vids" optionally followed by "auds".
115 # (Should cover 99.9% of all AVIs.)
116 # assuming avih length = 56
117 >>>88 string LIST
118 >>>>96 string strlstrh
119 >>>>>108 string vids video:
120 >>>>>>&0 lelong 0 uncompressed
121 # skip past vids strh
122 >>>>>>(104.l+108) string strf
123 >>>>>>>(104.l+132) lelong 1 RLE 8bpp
124 >>>>>>>(104.l+132) string/c cvid Cinepak
125 >>>>>>>(104.l+132) string/c i263 Intel I.263
126 >>>>>>>(104.l+132) string/c iv32 Indeo 3.2
127 >>>>>>>(104.l+132) string/c iv41 Indeo 4.1
128 >>>>>>>(104.l+132) string/c iv50 Indeo 5.0
129 >>>>>>>(104.l+132) string/c mp42 Microsoft MPEG-4 v2
130 >>>>>>>(104.l+132) string/c mp43 Microsoft MPEG-4 v3
131 >>>>>>>(104.l+132) string/c fmp4 FFMpeg MPEG-4
132 >>>>>>>(104.l+132) string/c mjpg Motion JPEG
133 >>>>>>>(104.l+132) string/c div3 DivX 3
134 >>>>>>>>112 string/c div3 Low-Motion
135 >>>>>>>>112 string/c div4 Fast-Motion
136 >>>>>>>(104.l+132) string/c divx DivX 4
137 >>>>>>>(104.l+132) string/c dx50 DivX 5
138 >>>>>>>(104.l+132) string/c xvid XviD
139 >>>>>>>(104.l+132) string/c h264 H.264
140 >>>>>>>(104.l+132) string/c wmv3 Windows Media Video 9
141 >>>>>>>(104.l+132) string/c h264 X.264 or H.264
142 >>>>>>>(104.l+132) lelong 0
143 ##>>>>>>>(104.l+132) string x (%.4s)
144 # skip past first (video) LIST
145 >>>>(92.l+96) string LIST
146 >>>>>(92.l+104) string strlstrh
147 >>>>>>(92.l+116) string auds \b, audio:
148 # auds strh length = 56:
149 >>>>>>>(92.l+172) string strf
150 >>>>>>>>(92.l+180) leshort 0x0001 uncompressed PCM
151 >>>>>>>>(92.l+180) leshort 0x0002 ADPCM
152 >>>>>>>>(92.l+180) leshort 0x0006 aLaw
153 >>>>>>>>(92.l+180) leshort 0x0007 uLaw
154 >>>>>>>>(92.l+180) leshort 0x0050 MPEG-1 Layer 1 or 2
155 >>>>>>>>(92.l+180) leshort 0x0055 MPEG-1 Layer 3
156 >>>>>>>>(92.l+180) leshort 0x2000 Dolby AC3
157 >>>>>>>>(92.l+180) leshort 0x0161 DivX
158 ##>>>>>>>>(92.l+180) leshort x (0x%.4x)
159 >>>>>>>>(92.l+182) leshort 1 (mono,
160 >>>>>>>>(92.l+182) leshort 2 (stereo,
161 >>>>>>>>(92.l+182) leshort >2 (%d channels,
162 >>>>>>>>(92.l+184) lelong x %d Hz)
163 # auds strh length = 64:
164 >>>>>>>(92.l+180) string strf
165 >>>>>>>>(92.l+188) leshort 0x0001 uncompressed PCM
166 >>>>>>>>(92.l+188) leshort 0x0002 ADPCM
167 >>>>>>>>(92.l+188) leshort 0x0055 MPEG-1 Layer 3
168 >>>>>>>>(92.l+188) leshort 0x2000 Dolby AC3
169 >>>>>>>>(92.l+188) leshort 0x0161 DivX
170 ##>>>>>>>>(92.l+188) leshort x (0x%.4x)
171 >>>>>>>>(92.l+190) leshort 1 (mono,
172 >>>>>>>>(92.l+190) leshort 2 (stereo,
173 >>>>>>>>(92.l+190) leshort >2 (%d channels,
174 >>>>>>>>(92.l+192) lelong x %d Hz)
175 # Animated Cursor format
176 >8 string ACON \b, animated cursor
177 # SoundFont 2 <mpruett@sgi.com>
178 >8 string sfbk SoundFont/Bank
179 # MPEG-1 wrapped in a RIFF, apparently
180 >8 string CDXA \b, wrapped MPEG-1 (CDXA)
181 >8 string 4XMV \b, 4X Movie file
182 # AMV-type AVI file: http://wiki.multimedia.cx/index.php?title=AMV
183 >8 string AMV\040 \b, AMV
185 #
186 # XXX - some of the below may only appear in little-endian form.
187 #
188 # Also "MV93" appears to be for one form of Macromedia Director
189 # files, and "GDMF" appears to be another multimedia format.
190 #
191 0 string RIFX RIFF (big-endian) data
192 # RIFF Palette format
193 >8 string PAL \b, palette
194 >>16 beshort x \b, version %d
195 >>18 beshort x \b, %d entries
196 # RIFF Device Independent Bitmap format
197 >8 string RDIB \b, device-independent bitmap
198 >>16 string BM
199 >>>30 beshort 12 \b, OS/2 1.x format
200 >>>>34 beshort x \b, %d x
201 >>>>36 beshort x %d
202 >>>30 beshort 64 \b, OS/2 2.x format
203 >>>>34 beshort x \b, %d x
204 >>>>36 beshort x %d
205 >>>30 beshort 40 \b, Windows 3.x format
206 >>>>34 belong x \b, %d x
207 >>>>38 belong x %d x
208 >>>>44 beshort x %d
209 # RIFF MIDI format
210 >8 string RMID \b, MIDI
211 # RIFF Multimedia Movie File format
212 >8 string RMMP \b, multimedia movie
213 # Microsoft WAVE format (*.wav)
214 >8 string WAVE \b, WAVE audio
215 >>20 leshort 1 \b, Microsoft PCM
216 >>>34 leshort >0 \b, %d bit
217 >>22 beshort =1 \b, mono
218 >>22 beshort =2 \b, stereo
219 >>22 beshort >2 \b, %d channels
220 >>24 belong >0 %d Hz
221 # Corel Draw Picture
222 >8 string CDRA \b, Corel Draw Picture
223 # AVI == Audio Video Interleave
224 >8 string AVI\040 \b, AVI
225 # Animated Cursor format
226 >8 string ACON \b, animated cursor
227 # Notation Interchange File Format (big-endian only)
228 >8 string NIFF \b, Notation Interchange File Format
229 # SoundFont 2 <mpruett@sgi.com>
230 >8 string sfbk SoundFont/Bank
232 #------------------------------------------------------------------------------
233 # Sony Wave64
234 # see http://www.vcs.de/fileadmin/user_upload/MBS/PDF/Whitepaper/Informations_about_Sony_Wave64.pdf
235 # 128 bit RIFF-GUID { 66666972-912E-11CF-A5D6-28DB04C10000 } in little-endian
236 0 string riff\x2E\x91\xCF\x11\xA5\xD6\x28\xDB\x04\xC1\x00\x00 Sony Wave64 RIFF data
237 # 128 bit + total file size (64 bits) so 24 bytes
238 # then WAVE-GUID { 65766177-ACF3-11D3-8CD1-00C04F8EDB8A }
239 >24 string wave\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A \b, WAVE 64 audio
240 !:mime audio/x-w64
241 # FMT-GUID { 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A }
242 >>40 search/256 fmt\x20\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A \b
243 >>>&10 leshort =1 \b, mono
244 >>>&10 leshort =2 \b, stereo
245 >>>&10 leshort >2 \b, %d channels
246 >>>&12 lelong >0 %d Hz
248 #------------------------------------------------------------------------------
249 # MBWF/RF64
250 # see EBU – TECH 3306 http://tech.ebu.ch/docs/tech/tech3306-2009.pdf
251 0 string RF64\xff\xff\xff\xffWAVEds64 MBWF/RF64 audio
252 !:mime audio/x-wav
253 >40 search/256 fmt\x20 \b
254 >>&6 leshort =1 \b, mono
255 >>&6 leshort =2 \b, stereo
256 >>&6 leshort >2 \b, %d channels
257 >>&8 lelong >0 %d Hz