1# $OpenBSD: riff,v 1.4 2021/01/23 10:18:28 espie Exp $ 2 3#------------------------------------------------------------------------------ 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 R�dman <patrik+file-magic@iki.fi> 10# 110 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 17 \b, IMA ADPCM 44>>20 leshort 20 \b, ITU G.723 ADPCM (Yamaha) 45>>20 leshort 49 \b, GSM 6.10 46>>20 leshort 64 \b, ITU G.721 ADPCM 47>>20 leshort 80 \b, MPEG 48>>20 leshort 85 \b, MPEG Layer 3 49>>22 leshort =1 \b, mono 50>>22 leshort =2 \b, stereo 51>>22 leshort >2 \b, %d channels 52>>24 lelong >0 %d Hz 53# Corel Draw Picture 54>8 string CDRA \b, Corel Draw Picture 55!:mime image/x-coreldraw 56# AVI == Audio Video Interleave 57>8 string AVI\040 \b, AVI 58!:mime video/x-msvideo 59>>12 string LIST 60>>>20 string hdrlavih 61>>>>&36 lelong x \b, %lu x 62>>>>&40 lelong x %lu, 63>>>>&4 lelong >1000000 <1 fps, 64>>>>&4 lelong 1000000 1.00 fps, 65>>>>&4 lelong 500000 2.00 fps, 66>>>>&4 lelong 333333 3.00 fps, 67>>>>&4 lelong 250000 4.00 fps, 68>>>>&4 lelong 200000 5.00 fps, 69>>>>&4 lelong 166667 6.00 fps, 70>>>>&4 lelong 142857 7.00 fps, 71>>>>&4 lelong 125000 8.00 fps, 72>>>>&4 lelong 111111 9.00 fps, 73>>>>&4 lelong 100000 10.00 fps, 74# ]9.9,10.1[ 75>>>>&4 lelong <101010 76>>>>>&-4 lelong >99010 77>>>>>>&-4 lelong !100000 ~10 fps, 78>>>>&4 lelong 83333 12.00 fps, 79# ]11.9,12.1[ 80>>>>&4 lelong <84034 81>>>>>&-4 lelong >82645 82>>>>>>&-4 lelong !83333 ~12 fps, 83>>>>&4 lelong 66667 15.00 fps, 84# ]14.9,15.1[ 85>>>>&4 lelong <67114 86>>>>>&-4 lelong >66225 87>>>>>>&-4 lelong !66667 ~15 fps, 88>>>>&4 lelong 50000 20.00 fps, 89>>>>&4 lelong 41708 23.98 fps, 90>>>>&4 lelong 41667 24.00 fps, 91# ]23.9,24.1[ 92>>>>&4 lelong <41841 93>>>>>&-4 lelong >41494 94>>>>>>&-4 lelong !41708 95>>>>>>>&-4 lelong !41667 ~24 fps, 96>>>>&4 lelong 40000 25.00 fps, 97# ]24.9,25.1[ 98>>>>&4 lelong <40161 99>>>>>&-4 lelong >39841 100>>>>>>&-4 lelong !40000 ~25 fps, 101>>>>&4 lelong 33367 29.97 fps, 102>>>>&4 lelong 33333 30.00 fps, 103# ]29.9,30.1[ 104>>>>&4 lelong <33445 105>>>>>&-4 lelong >33223 106>>>>>>&-4 lelong !33367 107>>>>>>>&-4 lelong !33333 ~30 fps, 108>>>>&4 lelong <32224 >30 fps, 109##>>>>&4 lelong x (%lu) 110##>>>>&20 lelong x %lu frames, 111# Note: The tests below assume that the AVI has 1 or 2 streams, 112# "vids" optionally followed by "auds". 113# (Should cover 99.9% of all AVIs.) 114# assuming avih length = 56 115>>>88 string LIST 116>>>>96 string strlstrh 117>>>>>108 string vids video: 118>>>>>>&0 lelong 0 uncompressed 119# skip past vids strh 120>>>>>>(104.l+108) string strf 121>>>>>>>(104.l+132) lelong 1 RLE 8bpp 122>>>>>>>(104.l+132) string/c cvid Cinepak 123>>>>>>>(104.l+132) string/c i263 Intel I.263 124>>>>>>>(104.l+132) string/c iv32 Indeo 3.2 125>>>>>>>(104.l+132) string/c iv41 Indeo 4.1 126>>>>>>>(104.l+132) string/c iv50 Indeo 5.0 127>>>>>>>(104.l+132) string/c mp42 Microsoft MPEG-4 v2 128>>>>>>>(104.l+132) string/c mp43 Microsoft MPEG-4 v3 129>>>>>>>(104.l+132) string/c fmp4 FFMpeg MPEG-4 130>>>>>>>(104.l+132) string/c mjpg Motion JPEG 131>>>>>>>(104.l+132) string/c div3 DivX 3 132>>>>>>>>112 string/c div3 Low-Motion 133>>>>>>>>112 string/c div4 Fast-Motion 134>>>>>>>(104.l+132) string/c divx DivX 4 135>>>>>>>(104.l+132) string/c dx50 DivX 5 136>>>>>>>(104.l+132) string/c xvid XviD 137>>>>>>>(104.l+132) string/c h264 H.264 138>>>>>>>(104.l+132) string/c wmv3 Windows Media Video 9 139>>>>>>>(104.l+132) string/c h264 X.264 140>>>>>>>(104.l+132) lelong 0 141##>>>>>>>(104.l+132) string x (%.4s) 142# skip past first (video) LIST 143>>>>(92.l+96) string LIST 144>>>>>(92.l+104) string strlstrh 145>>>>>>(92.l+116) string auds \b, audio: 146# auds strh length = 56: 147>>>>>>>(92.l+172) string strf 148>>>>>>>>(92.l+180) leshort 0x0001 uncompressed PCM 149>>>>>>>>(92.l+180) leshort 0x0002 ADPCM 150>>>>>>>>(92.l+180) leshort 0x0006 aLaw 151>>>>>>>>(92.l+180) leshort 0x0007 uLaw 152>>>>>>>>(92.l+180) leshort 0x0050 MPEG-1 Layer 1 or 2 153>>>>>>>>(92.l+180) leshort 0x0055 MPEG-1 Layer 3 154>>>>>>>>(92.l+180) leshort 0x2000 Dolby AC3 155>>>>>>>>(92.l+180) leshort 0x0161 DivX 156##>>>>>>>>(92.l+180) leshort x (0x%.4x) 157>>>>>>>>(92.l+182) leshort 1 (mono, 158>>>>>>>>(92.l+182) leshort 2 (stereo, 159>>>>>>>>(92.l+182) leshort >2 (%d channels, 160>>>>>>>>(92.l+184) lelong x %d Hz) 161# auds strh length = 64: 162>>>>>>>(92.l+180) string strf 163>>>>>>>>(92.l+188) leshort 0x0001 uncompressed PCM 164>>>>>>>>(92.l+188) leshort 0x0002 ADPCM 165>>>>>>>>(92.l+188) leshort 0x0055 MPEG-1 Layer 3 166>>>>>>>>(92.l+188) leshort 0x2000 Dolby AC3 167>>>>>>>>(92.l+188) leshort 0x0161 DivX 168##>>>>>>>>(92.l+188) leshort x (0x%.4x) 169>>>>>>>>(92.l+190) leshort 1 (mono, 170>>>>>>>>(92.l+190) leshort 2 (stereo, 171>>>>>>>>(92.l+190) leshort >2 (%d channels, 172>>>>>>>>(92.l+192) lelong x %d Hz) 173# Animated Cursor format 174>8 string ACON \b, animated cursor 175# SoundFont 2 <mpruett@sgi.com> 176>8 string sfbk SoundFont/Bank 177# MPEG-1 wrapped in a RIFF, apparently 178>8 string CDXA \b, wrapped MPEG-1 (CDXA) 179>8 string 4XMV \b, 4X Movie file 180>8 string WEBP \b, Web/P image 181!:mime image/webp 182 183# 184# XXX - some of the below may only appear in little-endian form. 185# 186# Also "MV93" appears to be for one form of Macromedia Director 187# files, and "GDMF" appears to be another multimedia format. 188# 1890 string RIFX RIFF (big-endian) data 190# RIFF Palette format 191>8 string PAL \b, palette 192>>16 beshort x \b, version %d 193>>18 beshort x \b, %d entries 194# RIFF Device Independent Bitmap format 195>8 string RDIB \b, device-independent bitmap 196>>16 string BM 197>>>30 beshort 12 \b, OS/2 1.x format 198>>>>34 beshort x \b, %d x 199>>>>36 beshort x %d 200>>>30 beshort 64 \b, OS/2 2.x format 201>>>>34 beshort x \b, %d x 202>>>>36 beshort x %d 203>>>30 beshort 40 \b, Windows 3.x format 204>>>>34 belong x \b, %d x 205>>>>38 belong x %d x 206>>>>44 beshort x %d 207# RIFF MIDI format 208>8 string RMID \b, MIDI 209# RIFF Multimedia Movie File format 210>8 string RMMP \b, multimedia movie 211# Microsoft WAVE format (*.wav) 212>8 string WAVE \b, WAVE audio 213>>20 leshort 1 \b, Microsoft PCM 214>>>34 leshort >0 \b, %d bit 215>>22 beshort =1 \b, mono 216>>22 beshort =2 \b, stereo 217>>22 beshort >2 \b, %d channels 218>>24 belong >0 %d Hz 219# Corel Draw Picture 220>8 string CDRA \b, Corel Draw Picture 221# AVI == Audio Video Interleave 222>8 string AVI\040 \b, AVI 223# Animated Cursor format 224>8 string ACON \b, animated cursor 225# Notation Interchange File Format (big-endian only) 226>8 string NIFF \b, Notation Interchange File Format 227# SoundFont 2 <mpruett@sgi.com> 228>8 string sfbk SoundFont/Bank 229