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# AVI section extended by Patrik R�dman <patrik+file-magic@iki.fi> 9# 100 string RIFF RIFF (little-endian) data 11# RIFF Palette format 12>8 string PAL \b, palette 13>>16 leshort x \b, version %d 14>>18 leshort x \b, %d entries 15# RIFF Device Independent Bitmap format 16>8 string RDIB \b, device-independent bitmap 17>>16 string BM 18>>>30 leshort 12 \b, OS/2 1.x format 19>>>>34 leshort x \b, %d x 20>>>>36 leshort x %d 21>>>30 leshort 64 \b, OS/2 2.x format 22>>>>34 leshort x \b, %d x 23>>>>36 leshort x %d 24>>>30 leshort 40 \b, Windows 3.x format 25>>>>34 lelong x \b, %d x 26>>>>38 lelong x %d x 27>>>>44 leshort x %d 28# RIFF MIDI format 29>8 string RMID \b, MIDI 30# RIFF Multimedia Movie File format 31>8 string RMMP \b, multimedia movie 32# RIFF wrapper for MP3 33>8 string RMP3 \b, MPEG Layer 3 audio 34# Microsoft WAVE format (*.wav) 35>8 string WAVE \b, WAVE audio 36!:mime audio/x-wav 37>>20 leshort 1 \b, Microsoft PCM 38>>>34 leshort >0 \b, %d bit 39>>20 leshort 2 \b, Microsoft ADPCM 40>>20 leshort 6 \b, ITU G.711 A-law 41>>20 leshort 7 \b, ITU G.711 mu-law 42>>20 leshort 17 \b, IMA ADPCM 43>>20 leshort 20 \b, ITU G.723 ADPCM (Yamaha) 44>>20 leshort 49 \b, GSM 6.10 45>>20 leshort 64 \b, ITU G.721 ADPCM 46>>20 leshort 80 \b, MPEG 47>>20 leshort 85 \b, MPEG Layer 3 48>>22 leshort =1 \b, mono 49>>22 leshort =2 \b, stereo 50>>22 leshort >2 \b, %d channels 51>>24 lelong >0 %d Hz 52# Corel Draw Picture 53>8 string CDRA \b, Corel Draw Picture 54!:mime image/x-coreldraw 55# AVI == Audio Video Interleave 56>8 string AVI\040 \b, AVI 57!:mime video/x-msvideo 58>>12 string LIST 59>>>20 string hdrlavih 60>>>>&36 lelong x \b, %lu x 61>>>>&40 lelong x %lu, 62>>>>&4 lelong >1000000 <1 fps, 63>>>>&4 lelong 1000000 1.00 fps, 64>>>>&4 lelong 500000 2.00 fps, 65>>>>&4 lelong 333333 3.00 fps, 66>>>>&4 lelong 250000 4.00 fps, 67>>>>&4 lelong 200000 5.00 fps, 68>>>>&4 lelong 166667 6.00 fps, 69>>>>&4 lelong 142857 7.00 fps, 70>>>>&4 lelong 125000 8.00 fps, 71>>>>&4 lelong 111111 9.00 fps, 72>>>>&4 lelong 100000 10.00 fps, 73# ]9.9,10.1[ 74>>>>&4 lelong <101010 75>>>>>&-4 lelong >99010 76>>>>>>&-4 lelong !100000 ~10 fps, 77>>>>&4 lelong 83333 12.00 fps, 78# ]11.9,12.1[ 79>>>>&4 lelong <84034 80>>>>>&-4 lelong >82645 81>>>>>>&-4 lelong !83333 ~12 fps, 82>>>>&4 lelong 66667 15.00 fps, 83# ]14.9,15.1[ 84>>>>&4 lelong <67114 85>>>>>&-4 lelong >66225 86>>>>>>&-4 lelong !66667 ~15 fps, 87>>>>&4 lelong 50000 20.00 fps, 88>>>>&4 lelong 41708 23.98 fps, 89>>>>&4 lelong 41667 24.00 fps, 90# ]23.9,24.1[ 91>>>>&4 lelong <41841 92>>>>>&-4 lelong >41494 93>>>>>>&-4 lelong !41708 94>>>>>>>&-4 lelong !41667 ~24 fps, 95>>>>&4 lelong 40000 25.00 fps, 96# ]24.9,25.1[ 97>>>>&4 lelong <40161 98>>>>>&-4 lelong >39841 99>>>>>>&-4 lelong !40000 ~25 fps, 100>>>>&4 lelong 33367 29.97 fps, 101>>>>&4 lelong 33333 30.00 fps, 102# ]29.9,30.1[ 103>>>>&4 lelong <33445 104>>>>>&-4 lelong >33223 105>>>>>>&-4 lelong !33367 106>>>>>>>&-4 lelong !33333 ~30 fps, 107>>>>&4 lelong <32224 >30 fps, 108##>>>>&4 lelong x (%lu) 109##>>>>&20 lelong x %lu frames, 110# Note: The tests below assume that the AVI has 1 or 2 streams, 111# "vids" optionally followed by "auds". 112# (Should cover 99.9% of all AVIs.) 113# assuming avih length = 56 114>>>88 string LIST 115>>>>96 string strlstrh 116>>>>>108 string vids video: 117>>>>>>&0 lelong 0 uncompressed 118# skip past vids strh 119>>>>>>(104.l+108) string strf 120>>>>>>>(104.l+132) lelong 1 RLE 8bpp 121>>>>>>>(104.l+132) string/c cvid Cinepak 122>>>>>>>(104.l+132) string/c i263 Intel I.263 123>>>>>>>(104.l+132) string/c iv32 Indeo 3.2 124>>>>>>>(104.l+132) string/c iv41 Indeo 4.1 125>>>>>>>(104.l+132) string/c iv50 Indeo 5.0 126>>>>>>>(104.l+132) string/c mp42 Microsoft MPEG-4 v2 127>>>>>>>(104.l+132) string/c mp43 Microsoft MPEG-4 v3 128>>>>>>>(104.l+132) string/c fmp4 FFMpeg MPEG-4 129>>>>>>>(104.l+132) string/c mjpg Motion JPEG 130>>>>>>>(104.l+132) string/c div3 DivX 3 131>>>>>>>>112 string/c div3 Low-Motion 132>>>>>>>>112 string/c div4 Fast-Motion 133>>>>>>>(104.l+132) string/c divx DivX 4 134>>>>>>>(104.l+132) string/c dx50 DivX 5 135>>>>>>>(104.l+132) string/c xvid XviD 136>>>>>>>(104.l+132) string/c h264 H.264 137>>>>>>>(104.l+132) string/c wmv3 Windows Media Video 9 138>>>>>>>(104.l+132) string/c h264 X.264 or H.264 139>>>>>>>(104.l+132) lelong 0 140##>>>>>>>(104.l+132) string x (%.4s) 141# skip past first (video) LIST 142>>>>(92.l+96) string LIST 143>>>>>(92.l+104) string strlstrh 144>>>>>>(92.l+116) string auds \b, audio: 145# auds strh length = 56: 146>>>>>>>(92.l+172) string strf 147>>>>>>>>(92.l+180) leshort 0x0001 uncompressed PCM 148>>>>>>>>(92.l+180) leshort 0x0002 ADPCM 149>>>>>>>>(92.l+180) leshort 0x0006 aLaw 150>>>>>>>>(92.l+180) leshort 0x0007 uLaw 151>>>>>>>>(92.l+180) leshort 0x0050 MPEG-1 Layer 1 or 2 152>>>>>>>>(92.l+180) leshort 0x0055 MPEG-1 Layer 3 153>>>>>>>>(92.l+180) leshort 0x2000 Dolby AC3 154>>>>>>>>(92.l+180) leshort 0x0161 DivX 155##>>>>>>>>(92.l+180) leshort x (0x%.4x) 156>>>>>>>>(92.l+182) leshort 1 (mono, 157>>>>>>>>(92.l+182) leshort 2 (stereo, 158>>>>>>>>(92.l+182) leshort >2 (%d channels, 159>>>>>>>>(92.l+184) lelong x %d Hz) 160# auds strh length = 64: 161>>>>>>>(92.l+180) string strf 162>>>>>>>>(92.l+188) leshort 0x0001 uncompressed PCM 163>>>>>>>>(92.l+188) leshort 0x0002 ADPCM 164>>>>>>>>(92.l+188) leshort 0x0055 MPEG-1 Layer 3 165>>>>>>>>(92.l+188) leshort 0x2000 Dolby AC3 166>>>>>>>>(92.l+188) leshort 0x0161 DivX 167##>>>>>>>>(92.l+188) leshort x (0x%.4x) 168>>>>>>>>(92.l+190) leshort 1 (mono, 169>>>>>>>>(92.l+190) leshort 2 (stereo, 170>>>>>>>>(92.l+190) leshort >2 (%d channels, 171>>>>>>>>(92.l+192) lelong x %d Hz) 172# Animated Cursor format 173>8 string ACON \b, animated cursor 174# SoundFont 2 <mpruett@sgi.com> 175>8 string sfbk SoundFont/Bank 176# MPEG-1 wrapped in a RIFF, apparently 177>8 string CDXA \b, wrapped MPEG-1 (CDXA) 178>8 string 4XMV \b, 4X Movie file 179 180# 181# XXX - some of the below may only appear in little-endian form. 182# 183# Also "MV93" appears to be for one form of Macromedia Director 184# files, and "GDMF" appears to be another multimedia format. 185# 1860 string RIFX RIFF (big-endian) data 187# RIFF Palette format 188>8 string PAL \b, palette 189>>16 beshort x \b, version %d 190>>18 beshort x \b, %d entries 191# RIFF Device Independent Bitmap format 192>8 string RDIB \b, device-independent bitmap 193>>16 string BM 194>>>30 beshort 12 \b, OS/2 1.x format 195>>>>34 beshort x \b, %d x 196>>>>36 beshort x %d 197>>>30 beshort 64 \b, OS/2 2.x format 198>>>>34 beshort x \b, %d x 199>>>>36 beshort x %d 200>>>30 beshort 40 \b, Windows 3.x format 201>>>>34 belong x \b, %d x 202>>>>38 belong x %d x 203>>>>44 beshort x %d 204# RIFF MIDI format 205>8 string RMID \b, MIDI 206# RIFF Multimedia Movie File format 207>8 string RMMP \b, multimedia movie 208# Microsoft WAVE format (*.wav) 209>8 string WAVE \b, WAVE audio 210>>20 leshort 1 \b, Microsoft PCM 211>>>34 leshort >0 \b, %d bit 212>>22 beshort =1 \b, mono 213>>22 beshort =2 \b, stereo 214>>22 beshort >2 \b, %d channels 215>>24 belong >0 %d Hz 216# Corel Draw Picture 217>8 string CDRA \b, Corel Draw Picture 218# AVI == Audio Video Interleave 219>8 string AVI\040 \b, AVI 220# Animated Cursor format 221>8 string ACON \b, animated cursor 222# Notation Interchange File Format (big-endian only) 223>8 string NIFF \b, Notation Interchange File Format 224# SoundFont 2 <mpruett@sgi.com> 225>8 string sfbk SoundFont/Bank 226