riff revision 276415
1 2#------------------------------------------------------------------------------ 3# $File: riff,v 1.30 2014/09/23 17:02:12 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 10# audio format tag. Assume limits: max 1024 bit, 128 channels, 1 MHz 110 name riff-wave 12>0 leshort 1 \b, Microsoft PCM 13>>14 leshort >0 14>>>14 leshort <1024 \b, %d bit 15>0 leshort 2 \b, Microsoft ADPCM 16>0 leshort 6 \b, ITU G.711 A-law 17>0 leshort 7 \b, ITU G.711 mu-law 18>0 leshort 8 \b, Microsoft DTS 19>0 leshort 17 \b, IMA ADPCM 20>0 leshort 20 \b, ITU G.723 ADPCM (Yamaha) 21>0 leshort 49 \b, GSM 6.10 22>0 leshort 64 \b, ITU G.721 ADPCM 23>0 leshort 80 \b, MPEG 24>0 leshort 85 \b, MPEG Layer 3 25>0 leshort 0x2001 \b, DTS 26>2 leshort =1 \b, mono 27>2 leshort =2 \b, stereo 28>2 leshort >2 29>>2 leshort <128 \b, %d channels 30>4 lelong >0 31>>4 lelong <1000000 %d Hz 32 33# try to find "fmt " 340 name riff-walk 35>0 string fmt\x20 36>>4 lelong <0x80 37>>>8 use riff-wave 38>0 string LIST 39>>&(4.l+4) use riff-walk 40>0 string DISP 41>>&(4.l+4) use riff-walk 42>0 string bext 43>>&(4.l+4) use riff-walk 44>0 string Fake 45>>&(4.l+4) use riff-walk 46>0 string fact 47>>&(4.l+4) use riff-walk 48>0 string VP8 49>>11 byte 0x9d 50>>>12 byte 0x01 51>>>>13 byte 0x2a \b, VP8 encoding 52>>>>>14 leshort&0x3fff x \b, %d 53>>>>>16 leshort&0x3fff x \bx%d, Scaling: 54>>>>>14 leshort&0xc000 0x0000 \b [none] 55>>>>>14 leshort&0xc000 0x1000 \b [5/4] 56>>>>>14 leshort&0xc000 0x2000 \b [5/3] 57>>>>>14 leshort&0xc000 0x3000 \b [2] 58>>>>>14 leshort&0xc000 0x0000 \bx[none] 59>>>>>14 leshort&0xc000 0x1000 \bx[5/4] 60>>>>>14 leshort&0xc000 0x2000 \bx[5/3] 61>>>>>14 leshort&0xc000 0x3000 \bx[2] 62>>>>>15 byte&0x80 =0x00 \b, YUV color 63>>>>>15 byte&0x80 =0x80 \b, bad color specification 64>>>>>15 byte&0x40 =0x40 \b, no clamping required 65>>>>>15 byte&0x40 =0x00 \b, decoders should clamp 66#>0 string x we got %s 67#>>&(4.l+4) use riff-walk 68 69# AVI section extended by Patrik Radman <patrik+file-magic@iki.fi> 70# 710 string RIFF RIFF (little-endian) data 72# RIFF Palette format 73>8 string PAL \b, palette 74>>16 leshort x \b, version %d 75>>18 leshort x \b, %d entries 76# RIFF Device Independent Bitmap format 77>8 string RDIB \b, device-independent bitmap 78>>16 string BM 79>>>30 leshort 12 \b, OS/2 1.x format 80>>>>34 leshort x \b, %d x 81>>>>36 leshort x %d 82>>>30 leshort 64 \b, OS/2 2.x format 83>>>>34 leshort x \b, %d x 84>>>>36 leshort x %d 85>>>30 leshort 40 \b, Windows 3.x format 86>>>>34 lelong x \b, %d x 87>>>>38 lelong x %d x 88>>>>44 leshort x %d 89# RIFF MIDI format 90>8 string RMID \b, MIDI 91# RIFF Multimedia Movie File format 92>8 string RMMP \b, multimedia movie 93# RIFF wrapper for MP3 94>8 string RMP3 \b, MPEG Layer 3 audio 95# Microsoft WAVE format (*.wav) 96>8 string WAVE \b, WAVE audio 97!:mime audio/x-wav 98>>12 string >\0 99>>>12 use riff-walk 100# Corel Draw Picture 101>8 string CDRA \b, Corel Draw Picture 102!:mime image/x-coreldraw 103>8 string CDR6 \b, Corel Draw Picture, version 6 104!:mime image/x-coreldraw 105>8 string NUNDROOT \b, Steinberg CuBase 106# AVI == Audio Video Interleave 107>8 string AVI\040 \b, AVI 108!:mime video/x-msvideo 109>>12 string LIST 110>>>20 string hdrlavih 111>>>>&36 lelong x \b, %u x 112>>>>&40 lelong x %u, 113>>>>&4 lelong >1000000 <1 fps, 114>>>>&4 lelong 1000000 1.00 fps, 115>>>>&4 lelong 500000 2.00 fps, 116>>>>&4 lelong 333333 3.00 fps, 117>>>>&4 lelong 250000 4.00 fps, 118>>>>&4 lelong 200000 5.00 fps, 119>>>>&4 lelong 166667 6.00 fps, 120>>>>&4 lelong 142857 7.00 fps, 121>>>>&4 lelong 125000 8.00 fps, 122>>>>&4 lelong 111111 9.00 fps, 123>>>>&4 lelong 100000 10.00 fps, 124# ]9.9,10.1[ 125>>>>&4 lelong <101010 126>>>>>&-4 lelong >99010 127>>>>>>&-4 lelong !100000 ~10 fps, 128>>>>&4 lelong 83333 12.00 fps, 129# ]11.9,12.1[ 130>>>>&4 lelong <84034 131>>>>>&-4 lelong >82645 132>>>>>>&-4 lelong !83333 ~12 fps, 133>>>>&4 lelong 66667 15.00 fps, 134# ]14.9,15.1[ 135>>>>&4 lelong <67114 136>>>>>&-4 lelong >66225 137>>>>>>&-4 lelong !66667 ~15 fps, 138>>>>&4 lelong 50000 20.00 fps, 139>>>>&4 lelong 41708 23.98 fps, 140>>>>&4 lelong 41667 24.00 fps, 141# ]23.9,24.1[ 142>>>>&4 lelong <41841 143>>>>>&-4 lelong >41494 144>>>>>>&-4 lelong !41708 145>>>>>>>&-4 lelong !41667 ~24 fps, 146>>>>&4 lelong 40000 25.00 fps, 147# ]24.9,25.1[ 148>>>>&4 lelong <40161 149>>>>>&-4 lelong >39841 150>>>>>>&-4 lelong !40000 ~25 fps, 151>>>>&4 lelong 33367 29.97 fps, 152>>>>&4 lelong 33333 30.00 fps, 153# ]29.9,30.1[ 154>>>>&4 lelong <33445 155>>>>>&-4 lelong >33223 156>>>>>>&-4 lelong !33367 157>>>>>>>&-4 lelong !33333 ~30 fps, 158>>>>&4 lelong <32224 >30 fps, 159##>>>>&4 lelong x (%lu) 160##>>>>&20 lelong x %lu frames, 161# Note: The tests below assume that the AVI has 1 or 2 streams, 162# "vids" optionally followed by "auds". 163# (Should cover 99.9% of all AVIs.) 164# assuming avih length = 56 165>>>88 string LIST 166>>>>96 string strlstrh 167>>>>>108 string vids video: 168>>>>>>&0 lelong 0 uncompressed 169# skip past vids strh 170>>>>>>(104.l+108) string strf 171>>>>>>>(104.l+132) lelong 1 RLE 8bpp 172>>>>>>>(104.l+132) string/c cvid Cinepak 173>>>>>>>(104.l+132) string/c i263 Intel I.263 174>>>>>>>(104.l+132) string/c iv32 Indeo 3.2 175>>>>>>>(104.l+132) string/c iv41 Indeo 4.1 176>>>>>>>(104.l+132) string/c iv50 Indeo 5.0 177>>>>>>>(104.l+132) string/c mp42 Microsoft MPEG-4 v2 178>>>>>>>(104.l+132) string/c mp43 Microsoft MPEG-4 v3 179>>>>>>>(104.l+132) string/c fmp4 FFMpeg MPEG-4 180>>>>>>>(104.l+132) string/c mjpg Motion JPEG 181>>>>>>>(104.l+132) string/c div3 DivX 3 182>>>>>>>>112 string/c div3 Low-Motion 183>>>>>>>>112 string/c div4 Fast-Motion 184>>>>>>>(104.l+132) string/c divx DivX 4 185>>>>>>>(104.l+132) string/c dx50 DivX 5 186>>>>>>>(104.l+132) string/c xvid XviD 187>>>>>>>(104.l+132) string/c h264 H.264 188>>>>>>>(104.l+132) string/c wmv3 Windows Media Video 9 189>>>>>>>(104.l+132) string/c h264 X.264 or H.264 190>>>>>>>(104.l+132) lelong 0 191##>>>>>>>(104.l+132) string x (%.4s) 192# skip past first (video) LIST 193>>>>(92.l+96) string LIST 194>>>>>(92.l+104) string strlstrh 195>>>>>>(92.l+116) string auds \b, audio: 196# auds strh length = 56: 197>>>>>>>(92.l+172) string strf 198>>>>>>>>(92.l+180) leshort 0x0001 uncompressed PCM 199>>>>>>>>(92.l+180) leshort 0x0002 ADPCM 200>>>>>>>>(92.l+180) leshort 0x0006 aLaw 201>>>>>>>>(92.l+180) leshort 0x0007 uLaw 202>>>>>>>>(92.l+180) leshort 0x0050 MPEG-1 Layer 1 or 2 203>>>>>>>>(92.l+180) leshort 0x0055 MPEG-1 Layer 3 204>>>>>>>>(92.l+180) leshort 0x2000 Dolby AC3 205>>>>>>>>(92.l+180) leshort 0x0161 DivX 206##>>>>>>>>(92.l+180) leshort x (0x%.4x) 207>>>>>>>>(92.l+182) leshort 1 (mono, 208>>>>>>>>(92.l+182) leshort 2 (stereo, 209>>>>>>>>(92.l+182) leshort >2 (%d channels, 210>>>>>>>>(92.l+184) lelong x %d Hz) 211# auds strh length = 64: 212>>>>>>>(92.l+180) string strf 213>>>>>>>>(92.l+188) leshort 0x0001 uncompressed PCM 214>>>>>>>>(92.l+188) leshort 0x0002 ADPCM 215>>>>>>>>(92.l+188) leshort 0x0055 MPEG-1 Layer 3 216>>>>>>>>(92.l+188) leshort 0x2000 Dolby AC3 217>>>>>>>>(92.l+188) leshort 0x0161 DivX 218##>>>>>>>>(92.l+188) leshort x (0x%.4x) 219>>>>>>>>(92.l+190) leshort 1 (mono, 220>>>>>>>>(92.l+190) leshort 2 (stereo, 221>>>>>>>>(92.l+190) leshort >2 (%d channels, 222>>>>>>>>(92.l+192) lelong x %d Hz) 223# Animated Cursor format 224>8 string ACON \b, animated cursor 225# SoundFont 2 <mpruett@sgi.com> 226>8 string sfbk SoundFont/Bank 227# MPEG-1 wrapped in a RIFF, apparently 228>8 string CDXA \b, wrapped MPEG-1 (CDXA) 229>8 string 4XMV \b, 4X Movie file 230# AMV-type AVI file: http://wiki.multimedia.cx/index.php?title=AMV 231>8 string AMV\040 \b, AMV 232>8 string WEBP \b, Web/P image 233>>12 use riff-walk 234 235# 236# XXX - some of the below may only appear in little-endian form. 237# 238# Also "MV93" appears to be for one form of Macromedia Director 239# files, and "GDMF" appears to be another multimedia format. 240# 2410 string RIFX RIFF (big-endian) data 242# RIFF Palette format 243>8 string PAL \b, palette 244>>16 beshort x \b, version %d 245>>18 beshort x \b, %d entries 246# RIFF Device Independent Bitmap format 247>8 string RDIB \b, device-independent bitmap 248>>16 string BM 249>>>30 beshort 12 \b, OS/2 1.x format 250>>>>34 beshort x \b, %d x 251>>>>36 beshort x %d 252>>>30 beshort 64 \b, OS/2 2.x format 253>>>>34 beshort x \b, %d x 254>>>>36 beshort x %d 255>>>30 beshort 40 \b, Windows 3.x format 256>>>>34 belong x \b, %d x 257>>>>38 belong x %d x 258>>>>44 beshort x %d 259# RIFF MIDI format 260>8 string RMID \b, MIDI 261# RIFF Multimedia Movie File format 262>8 string RMMP \b, multimedia movie 263# Microsoft WAVE format (*.wav) 264>8 string WAVE \b, WAVE audio 265>>20 leshort 1 \b, Microsoft PCM 266>>>34 leshort >0 \b, %d bit 267>>22 beshort =1 \b, mono 268>>22 beshort =2 \b, stereo 269>>22 beshort >2 \b, %d channels 270>>24 belong >0 %d Hz 271# Corel Draw Picture 272>8 string CDRA \b, Corel Draw Picture 273>8 string CDR6 \b, Corel Draw Picture, version 6 274# AVI == Audio Video Interleave 275>8 string AVI\040 \b, AVI 276# Animated Cursor format 277>8 string ACON \b, animated cursor 278# Notation Interchange File Format (big-endian only) 279>8 string NIFF \b, Notation Interchange File Format 280# SoundFont 2 <mpruett@sgi.com> 281>8 string sfbk SoundFont/Bank 282 283#------------------------------------------------------------------------------ 284# Sony Wave64 285# see http://www.vcs.de/fileadmin/user_upload/MBS/PDF/Whitepaper/Informations_about_Sony_Wave64.pdf 286# 128 bit RIFF-GUID { 66666972-912E-11CF-A5D6-28DB04C10000 } in little-endian 2870 string riff\x2E\x91\xCF\x11\xA5\xD6\x28\xDB\x04\xC1\x00\x00 Sony Wave64 RIFF data 288# 128 bit + total file size (64 bits) so 24 bytes 289# then WAVE-GUID { 65766177-ACF3-11D3-8CD1-00C04F8EDB8A } 290>24 string wave\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A \b, WAVE 64 audio 291!:mime audio/x-w64 292# FMT-GUID { 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A } 293>>40 search/256 fmt\x20\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A \b 294>>>&10 leshort =1 \b, mono 295>>>&10 leshort =2 \b, stereo 296>>>&10 leshort >2 \b, %d channels 297>>>&12 lelong >0 %d Hz 298 299#------------------------------------------------------------------------------ 300# MBWF/RF64 301# see EBU TECH 3306 http://tech.ebu.ch/docs/tech/tech3306-2009.pdf 3020 string RF64\xff\xff\xff\xffWAVEds64 MBWF/RF64 audio 303!:mime audio/x-wav 304>40 search/256 fmt\x20 \b 305>>&6 leshort =1 \b, mono 306>>&6 leshort =2 \b, stereo 307>>&6 leshort >2 \b, %d channels 308>>&8 lelong >0 %d Hz 309