riff revision 328875
1187712Sraj 2187712Sraj#------------------------------------------------------------------------------ 3187712Sraj# $File: riff,v 1.32 2017/03/17 21:35:28 christos Exp $ 4187712Sraj# riff: file(1) magic for RIFF format 5187712Sraj# See 6187712Sraj# 7187712Sraj# http://www.seanet.com/users/matts/riffmci/riffmci.htm 8187712Sraj# 9187712Sraj 10187712Sraj# audio format tag. Assume limits: max 1024 bit, 128 channels, 1 MHz 11187712Sraj0 name riff-wave 12187712Sraj>0 leshort 1 \b, Microsoft PCM 13187712Sraj>>14 leshort >0 14187712Sraj>>>14 leshort <1024 \b, %d bit 15187712Sraj>0 leshort 2 \b, Microsoft ADPCM 16187712Sraj>0 leshort 6 \b, ITU G.711 A-law 17187712Sraj>0 leshort 7 \b, ITU G.711 mu-law 18187712Sraj>0 leshort 8 \b, Microsoft DTS 19187712Sraj>0 leshort 17 \b, IMA ADPCM 20187712Sraj>0 leshort 20 \b, ITU G.723 ADPCM (Yamaha) 21187712Sraj>0 leshort 49 \b, GSM 6.10 22187712Sraj>0 leshort 64 \b, ITU G.721 ADPCM 23187712Sraj>0 leshort 80 \b, MPEG 24187712Sraj>0 leshort 85 \b, MPEG Layer 3 25187712Sraj>0 leshort 0x2001 \b, DTS 26187712Sraj>2 leshort =1 \b, mono 27187712Sraj>2 leshort =2 \b, stereo 28187712Sraj>2 leshort >2 29187712Sraj>>2 leshort <128 \b, %d channels 30187712Sraj>4 lelong >0 31187712Sraj>>4 lelong <1000000 %d Hz 32187712Sraj 33187712Sraj# try to find "fmt " 34187712Sraj0 name riff-walk 35187712Sraj>0 string fmt\x20 36187712Sraj>>4 lelong <0x80 37187712Sraj>>>8 use riff-wave 38187712Sraj>0 string LIST 39187712Sraj>>&(4.l+4) use riff-walk 40187712Sraj>0 string DISP 41187712Sraj>>&(4.l+4) use riff-walk 42187712Sraj>0 string bext 43187712Sraj>>&(4.l+4) use riff-walk 44187712Sraj>0 string Fake 45187712Sraj>>&(4.l+4) use riff-walk 46187712Sraj>0 string fact 47187712Sraj>>&(4.l+4) use riff-walk 48187712Sraj>0 string VP8 49187712Sraj>>11 byte 0x9d 50187712Sraj>>>12 byte 0x01 51187712Sraj>>>>13 byte 0x2a \b, VP8 encoding 52187712Sraj>>>>>14 leshort&0x3fff x \b, %d 53187712Sraj>>>>>16 leshort&0x3fff x \bx%d, Scaling: 54187712Sraj>>>>>14 leshort&0xc000 0x0000 \b [none] 55187712Sraj>>>>>14 leshort&0xc000 0x1000 \b [5/4] 56187712Sraj>>>>>14 leshort&0xc000 0x2000 \b [5/3] 57187712Sraj>>>>>14 leshort&0xc000 0x3000 \b [2] 58187712Sraj>>>>>14 leshort&0xc000 0x0000 \bx[none] 59187712Sraj>>>>>14 leshort&0xc000 0x1000 \bx[5/4] 60187712Sraj>>>>>14 leshort&0xc000 0x2000 \bx[5/3] 61187712Sraj>>>>>14 leshort&0xc000 0x3000 \bx[2] 62187712Sraj>>>>>15 byte&0x80 =0x00 \b, YUV color 63187712Sraj>>>>>15 byte&0x80 =0x80 \b, bad color specification 64187712Sraj>>>>>15 byte&0x40 =0x40 \b, no clamping required 65187712Sraj>>>>>15 byte&0x40 =0x00 \b, decoders should clamp 66187712Sraj#>0 string x we got %s 67187712Sraj#>>&(4.l+4) use riff-walk 68187712Sraj 69187712Sraj# AVI section extended by Patrik Radman <patrik+file-magic@iki.fi> 70187712Sraj# 71187712Sraj0 string RIFF RIFF (little-endian) data 72187712Sraj# RIFF Palette format 73187712Sraj>8 string PAL \b, palette 74187712Sraj>>16 leshort x \b, version %d 75187712Sraj>>18 leshort x \b, %d entries 76187712Sraj# RIFF Device Independent Bitmap format 77187712Sraj>8 string RDIB \b, device-independent bitmap 78187712Sraj>>16 string BM 79187712Sraj>>>30 leshort 12 \b, OS/2 1.x format 80187712Sraj>>>>34 leshort x \b, %d x 81187712Sraj>>>>36 leshort x %d 82187712Sraj>>>30 leshort 64 \b, OS/2 2.x format 83187712Sraj>>>>34 leshort x \b, %d x 84187712Sraj>>>>36 leshort x %d 85187712Sraj>>>30 leshort 40 \b, Windows 3.x format 86187712Sraj>>>>34 lelong x \b, %d x 87187712Sraj>>>>38 lelong x %d x 88187712Sraj>>>>44 leshort x %d 89187712Sraj# RIFF MIDI format 90187712Sraj>8 string RMID \b, MIDI 91187712Sraj# RIFF Multimedia Movie File format 92187712Sraj>8 string RMMP \b, multimedia movie 93187712Sraj# RIFF wrapper for MP3 94187712Sraj>8 string RMP3 \b, MPEG Layer 3 audio 95187712Sraj# Microsoft WAVE format (*.wav) 96187712Sraj>8 string WAVE \b, WAVE audio 97187712Sraj!:mime audio/x-wav 98187712Sraj>>12 string >\0 99187712Sraj>>>12 use riff-walk 100187712Sraj# Corel Draw Picture 101187712Sraj>8 string CDRA \b, Corel Draw Picture 102187712Sraj!:mime image/x-coreldraw 103187712Sraj>8 string CDR6 \b, Corel Draw Picture, version 6 104187712Sraj!:mime image/x-coreldraw 105187712Sraj>8 string NUNDROOT \b, Steinberg CuBase 106187712Sraj# AVI == Audio Video Interleave 107187712Sraj>8 string AVI\040 \b, AVI 108187712Sraj!:mime video/x-msvideo 109187712Sraj>>12 string LIST 110187712Sraj>>>20 string hdrlavih 111187712Sraj>>>>&36 lelong x \b, %u x 112187712Sraj>>>>&40 lelong x %u, 113187712Sraj>>>>&4 lelong >1000000 <1 fps, 114187712Sraj>>>>&4 lelong 1000000 1.00 fps, 115187712Sraj>>>>&4 lelong 500000 2.00 fps, 116187712Sraj>>>>&4 lelong 333333 3.00 fps, 117187712Sraj>>>>&4 lelong 250000 4.00 fps, 118187712Sraj>>>>&4 lelong 200000 5.00 fps, 119187712Sraj>>>>&4 lelong 166667 6.00 fps, 120187712Sraj>>>>&4 lelong 142857 7.00 fps, 121187712Sraj>>>>&4 lelong 125000 8.00 fps, 122187712Sraj>>>>&4 lelong 111111 9.00 fps, 123187712Sraj>>>>&4 lelong 100000 10.00 fps, 124187712Sraj# ]9.9,10.1[ 125187712Sraj>>>>&4 lelong <101010 126187712Sraj>>>>>&-4 lelong >99010 127187712Sraj>>>>>>&-4 lelong !100000 ~10 fps, 128187712Sraj>>>>&4 lelong 83333 12.00 fps, 129187712Sraj# ]11.9,12.1[ 130187712Sraj>>>>&4 lelong <84034 131187712Sraj>>>>>&-4 lelong >82645 132187712Sraj>>>>>>&-4 lelong !83333 ~12 fps, 133187712Sraj>>>>&4 lelong 66667 15.00 fps, 134187712Sraj# ]14.9,15.1[ 135187712Sraj>>>>&4 lelong <67114 136187712Sraj>>>>>&-4 lelong >66225 137187712Sraj>>>>>>&-4 lelong !66667 ~15 fps, 138187712Sraj>>>>&4 lelong 50000 20.00 fps, 139187712Sraj>>>>&4 lelong 41708 23.98 fps, 140187712Sraj>>>>&4 lelong 41667 24.00 fps, 141187712Sraj# ]23.9,24.1[ 142187712Sraj>>>>&4 lelong <41841 143187712Sraj>>>>>&-4 lelong >41494 144187712Sraj>>>>>>&-4 lelong !41708 145274416Sloos>>>>>>>&-4 lelong !41667 ~24 fps, 146187712Sraj>>>>&4 lelong 40000 25.00 fps, 147187712Sraj# ]24.9,25.1[ 148187712Sraj>>>>&4 lelong <40161 149187712Sraj>>>>>&-4 lelong >39841 150187712Sraj>>>>>>&-4 lelong !40000 ~25 fps, 151187712Sraj>>>>&4 lelong 33367 29.97 fps, 152187712Sraj>>>>&4 lelong 33333 30.00 fps, 153187712Sraj# ]29.9,30.1[ 154274416Sloos>>>>&4 lelong <33445 155187712Sraj>>>>>&-4 lelong >33223 156187712Sraj>>>>>>&-4 lelong !33367 157187712Sraj>>>>>>>&-4 lelong !33333 ~30 fps, 158187712Sraj>>>>&4 lelong <32224 >30 fps, 159187712Sraj##>>>>&4 lelong x (%lu) 160187712Sraj##>>>>&20 lelong x %lu frames, 161187712Sraj# Note: The tests below assume that the AVI has 1 or 2 streams, 162187712Sraj# "vids" optionally followed by "auds". 163187712Sraj# (Should cover 99.9% of all AVIs.) 164187712Sraj# assuming avih length = 56 165187712Sraj>>>88 string LIST 166187712Sraj>>>>96 string strlstrh 167187712Sraj>>>>>108 string vids video: 168187712Sraj>>>>>>&0 lelong 0 uncompressed 169187712Sraj# skip past vids strh 170187712Sraj>>>>>>(104.l+108) string strf 171187712Sraj>>>>>>>(104.l+132) lelong 1 RLE 8bpp 172187712Sraj>>>>>>>(104.l+132) string/c cvid Cinepak 173187712Sraj>>>>>>>(104.l+132) string/c i263 Intel I.263 174187712Sraj>>>>>>>(104.l+132) string/c iv32 Indeo 3.2 175187712Sraj>>>>>>>(104.l+132) string/c iv41 Indeo 4.1 176187712Sraj>>>>>>>(104.l+132) string/c iv50 Indeo 5.0 177187712Sraj>>>>>>>(104.l+132) string/c mp42 Microsoft MPEG-4 v2 178187712Sraj>>>>>>>(104.l+132) string/c mp43 Microsoft MPEG-4 v3 179187712Sraj>>>>>>>(104.l+132) string/c fmp4 FFMpeg MPEG-4 180187712Sraj>>>>>>>(104.l+132) string/c mjpg Motion JPEG 181187712Sraj>>>>>>>(104.l+132) string/c div3 DivX 3 182187712Sraj>>>>>>>>112 string/c div3 Low-Motion 183187712Sraj>>>>>>>>112 string/c div4 Fast-Motion 184187712Sraj>>>>>>>(104.l+132) string/c divx DivX 4 185187712Sraj>>>>>>>(104.l+132) string/c dx50 DivX 5 186187712Sraj>>>>>>>(104.l+132) string/c xvid XviD 187187712Sraj>>>>>>>(104.l+132) string/c h264 H.264 188187712Sraj>>>>>>>(104.l+132) string/c wmv3 Windows Media Video 9 189187712Sraj>>>>>>>(104.l+132) string/c h264 X.264 or H.264 190187712Sraj>>>>>>>(104.l+132) lelong 0 191187712Sraj##>>>>>>>(104.l+132) string x (%.4s) 192187712Sraj# skip past first (video) LIST 193187712Sraj>>>>(92.l+96) string LIST 194187712Sraj>>>>>(92.l+104) string strlstrh 195187712Sraj>>>>>>(92.l+116) string auds \b, audio: 196187712Sraj# auds strh length = 56: 197187712Sraj>>>>>>>(92.l+172) string strf 198187712Sraj>>>>>>>>(92.l+180) leshort 0x0001 uncompressed PCM 199187712Sraj>>>>>>>>(92.l+180) leshort 0x0002 ADPCM 200187712Sraj>>>>>>>>(92.l+180) leshort 0x0006 aLaw 201187712Sraj>>>>>>>>(92.l+180) leshort 0x0007 uLaw 202187712Sraj>>>>>>>>(92.l+180) leshort 0x0050 MPEG-1 Layer 1 or 2 203187712Sraj>>>>>>>>(92.l+180) leshort 0x0055 MPEG-1 Layer 3 204187712Sraj>>>>>>>>(92.l+180) leshort 0x2000 Dolby AC3 205187712Sraj>>>>>>>>(92.l+180) leshort 0x0161 DivX 206187712Sraj##>>>>>>>>(92.l+180) leshort x (0x%.4x) 207187712Sraj>>>>>>>>(92.l+182) leshort 1 (mono, 208187712Sraj>>>>>>>>(92.l+182) leshort 2 (stereo, 209187712Sraj>>>>>>>>(92.l+182) leshort >2 (%d channels, 210187712Sraj>>>>>>>>(92.l+184) lelong x %d Hz) 211187712Sraj# auds strh length = 64: 212187712Sraj>>>>>>>(92.l+180) string strf 213187712Sraj>>>>>>>>(92.l+188) leshort 0x0001 uncompressed PCM 214187712Sraj>>>>>>>>(92.l+188) leshort 0x0002 ADPCM 215187712Sraj>>>>>>>>(92.l+188) leshort 0x0055 MPEG-1 Layer 3 216187712Sraj>>>>>>>>(92.l+188) leshort 0x2000 Dolby AC3 217187712Sraj>>>>>>>>(92.l+188) leshort 0x0161 DivX 218187712Sraj##>>>>>>>>(92.l+188) leshort x (0x%.4x) 219187712Sraj>>>>>>>>(92.l+190) leshort 1 (mono, 220187712Sraj>>>>>>>>(92.l+190) leshort 2 (stereo, 221187712Sraj>>>>>>>>(92.l+190) leshort >2 (%d channels, 222187712Sraj>>>>>>>>(92.l+192) lelong x %d Hz) 223187712Sraj# Animated Cursor format 224187712Sraj>8 string ACON \b, animated cursor 225187712Sraj# SoundFont 2 <mpruett@sgi.com> 226187712Sraj>8 string sfbk SoundFont/Bank 227187712Sraj# MPEG-1 wrapped in a RIFF, apparently 228187712Sraj>8 string CDXA \b, wrapped MPEG-1 (CDXA) 229187712Sraj>8 string 4XMV \b, 4X Movie file 230187712Sraj# AMV-type AVI file: http://wiki.multimedia.cx/index.php?title=AMV 231187712Sraj>8 string AMV\040 \b, AMV 232187712Sraj>8 string WEBP \b, Web/P image 233187712Sraj!:mime image/webp 234187712Sraj>>12 use riff-walk 235187712Sraj 236187712Sraj# 237187712Sraj# XXX - some of the below may only appear in little-endian form. 238187712Sraj# 239187712Sraj# Also "MV93" appears to be for one form of Macromedia Director 240187712Sraj# files, and "GDMF" appears to be another multimedia format. 241187712Sraj# 242187712Sraj0 string RIFX RIFF (big-endian) data 243187712Sraj# RIFF Palette format 244187712Sraj>8 string PAL \b, palette 245187712Sraj>>16 beshort x \b, version %d 246187712Sraj>>18 beshort x \b, %d entries 247187712Sraj# RIFF Device Independent Bitmap format 248187712Sraj>8 string RDIB \b, device-independent bitmap 249187712Sraj>>16 string BM 250187712Sraj>>>30 beshort 12 \b, OS/2 1.x format 251187712Sraj>>>>34 beshort x \b, %d x 252187712Sraj>>>>36 beshort x %d 253187712Sraj>>>30 beshort 64 \b, OS/2 2.x format 254187712Sraj>>>>34 beshort x \b, %d x 255187712Sraj>>>>36 beshort x %d 256187712Sraj>>>30 beshort 40 \b, Windows 3.x format 257187712Sraj>>>>34 belong x \b, %d x 258187712Sraj>>>>38 belong x %d x 259187712Sraj>>>>44 beshort x %d 260187712Sraj# RIFF MIDI format 261187712Sraj>8 string RMID \b, MIDI 262187712Sraj# RIFF Multimedia Movie File format 263187712Sraj>8 string RMMP \b, multimedia movie 264187712Sraj# Microsoft WAVE format (*.wav) 265187712Sraj>8 string WAVE \b, WAVE audio 266187712Sraj>>20 leshort 1 \b, Microsoft PCM 267187712Sraj>>>34 leshort >0 \b, %d bit 268187712Sraj>>22 beshort =1 \b, mono 269187712Sraj>>22 beshort =2 \b, stereo 270187712Sraj>>22 beshort >2 \b, %d channels 271187712Sraj>>24 belong >0 %d Hz 272187712Sraj# Corel Draw Picture 273187712Sraj>8 string CDRA \b, Corel Draw Picture 274187712Sraj>8 string CDR6 \b, Corel Draw Picture, version 6 275187712Sraj# AVI == Audio Video Interleave 276187712Sraj>8 string AVI\040 \b, AVI 277187712Sraj# Animated Cursor format 278187712Sraj>8 string ACON \b, animated cursor 279187712Sraj# Notation Interchange File Format (big-endian only) 280187712Sraj>8 string NIFF \b, Notation Interchange File Format 281187712Sraj# SoundFont 2 <mpruett@sgi.com> 282187712Sraj>8 string sfbk SoundFont/Bank 283187712Sraj 284187712Sraj#------------------------------------------------------------------------------ 285187712Sraj# Sony Wave64 286187712Sraj# see http://www.vcs.de/fileadmin/user_upload/MBS/PDF/Whitepaper/Informations_about_Sony_Wave64.pdf 287187712Sraj# 128 bit RIFF-GUID { 66666972-912E-11CF-A5D6-28DB04C10000 } in little-endian 288187712Sraj0 string riff\x2E\x91\xCF\x11\xA5\xD6\x28\xDB\x04\xC1\x00\x00 Sony Wave64 RIFF data 289187712Sraj# 128 bit + total file size (64 bits) so 24 bytes 290187712Sraj# then WAVE-GUID { 65766177-ACF3-11D3-8CD1-00C04F8EDB8A } 291187712Sraj>24 string wave\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A \b, WAVE 64 audio 292187712Sraj!:mime audio/x-w64 293187712Sraj# FMT-GUID { 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A } 294187712Sraj>>40 search/256 fmt\x20\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A \b 295187712Sraj>>>&10 leshort =1 \b, mono 296187712Sraj>>>&10 leshort =2 \b, stereo 297299682Spfg>>>&10 leshort >2 \b, %d channels 298299586Spfg>>>&12 lelong >0 %d Hz 299299682Spfg 300299682Spfg#------------------------------------------------------------------------------ 301187712Sraj# MBWF/RF64 302287820Szbb# see EBU TECH 3306 http://tech.ebu.ch/docs/tech/tech3306-2009.pdf 303287820Szbb0 string RF64\xff\xff\xff\xffWAVEds64 MBWF/RF64 audio 304287820Szbb!:mime audio/x-wav 305287820Szbb>40 search/256 fmt\x20 \b 306287820Szbb>>&6 leshort =1 \b, mono 307287820Szbb>>&6 leshort =2 \b, stereo 308287820Szbb>>&6 leshort >2 \b, %d channels 309287820Szbb>>&8 lelong >0 %d Hz 310287820Szbb