1 2#------------------------------------------------------------------------------ 3# $File: jpeg,v 1.37 2022/06/17 18:03:35 christos Exp $ 4# JPEG images 5# SunOS 5.5.1 had 6# 7# 0 string \377\330\377\340 JPEG file 8# 0 string \377\330\377\356 JPG file 9# 10# both of which turn into "JPEG image data" here. 11# 120 belong 0xffd8fff7 JPEG-LS image data 13!:mime image/jls 14!:ext jls 15>0 use jpeg 16 170 belong&0xffffff00 0xffd8ff00 JPEG image data 18!:mime image/jpeg 19!:apple 8BIMJPEG 20!:strength *3 21!:ext jpeg/jpg/jpe/jfif 22>0 use jpeg 23 240 name jpeg 25>6 string JFIF \b, JFIF standard 26# The following added by Erik Rossen <rossen@freesurf.ch> 1999-09-06 27# in a vain attempt to add image size reporting for JFIF. Note that these 28# tests are not fool-proof since some perfectly valid JPEGs are currently 29# impossible to specify in magic(4) format. 30# First, a little JFIF version info: 31>>11 byte x \b %d. 32>>12 byte x \b%02d 33# Next, the resolution or aspect ratio of the image: 34>>13 byte 0 \b, aspect ratio 35>>13 byte 1 \b, resolution (DPI) 36>>13 byte 2 \b, resolution (DPCM) 37>>14 beshort x \b, density %dx 38>>16 beshort x \b%d 39>>4 beshort x \b, segment length %d 40# Next, show thumbnail info, if it exists: 41>>18 byte !0 \b, thumbnail %dx 42>>>19 byte x \b%d 43>6 string Exif \b, Exif standard: [ 44>>12 indirect/r x 45>>12 string x \b] 46 47# Jump to the first segment 48>(4.S+4) use jpeg_segment 49 50# This uses recursion... 510 name jpeg_segment 52>0 beshort 0xFFFE 53# Recursion handled by FFE0 54#>>(2.S+2) use jpeg_segment 55>>2 pstring/HJ x \b, comment: "%s" 56 57>0 beshort 0xFFC0 58>>(2.S+2) use jpeg_segment 59>>4 byte x \b, baseline, precision %d 60>>7 beshort x \b, %dx 61>>5 beshort x \b%d 62>>9 byte x \b, components %d 63 64>0 beshort 0xFFC1 65>>(2.S+2) use jpeg_segment 66>>4 byte x \b, extended sequential, precision %d 67>>7 beshort x \b, %dx 68>>5 beshort x \b%d 69>>9 byte x \b, components %d 70 71>0 beshort 0xFFC2 72>>(2.S+2) use jpeg_segment 73>>4 byte x \b, progressive, precision %d 74>>7 beshort x \b, %dx 75>>5 beshort x \b%d 76>>9 byte x \b, components %d 77 78# Define Huffman Tables 79>0 beshort 0xFFC4 80>>(2.S+2) use jpeg_segment 81 82>0 beshort 0xFFE1 83# Recursion handled by FFE0 84#>>(2.S+2) use jpeg_segment 85>>4 string Exif \b, Exif Standard: [ 86>>>10 indirect/r x 87>>>10 string x \b] 88 89# Application specific markers 90>0 beshort&0xFFE0 =0xFFE0 91>>(2.S+2) use jpeg_segment 92 93# DB: Define Quantization tables 94# DD: Define Restart interval [XXX: wrong here, it is 4 bytes] 95# D8: Start of image 96# D9: End of image 97# Dn: Restart 98>0 beshort&0xFFD0 =0xFFD0 99>>0 beshort&0xFFE0 !0xFFE0 100>>>(2.S+2) use jpeg_segment 101 102#>0 beshort x unknown %#x 103#>>(2.S+2) use jpeg_segment 104 105# HSI is Handmade Software's proprietary JPEG encoding scheme 106# Update: Joerg Jenderek 107# URL: http://fileformats.archiveteam.org/wiki/HSI_JPEG 108# Reference: http://mark0.net/download/triddefs_xml.7z/defs/b/bitmap-hsi1.trid.xml 109# Note: called by TrID "HSI JPEG bitmap" 1100 string hsi1 JPEG image data, HSI proprietary 111#!:mime application/octet-stream 112!:mime image/x-hsi 113!:ext hsi/jpg 114 115# From: David Santinoli <david@santinoli.com> 1160 string \x00\x00\x00\x0C\x6A\x50\x20\x20\x0D\x0A\x87\x0A JPEG 2000 117# delete from ./animation (version 1.87) with jP (=6A50h) magic at offset 4 118# From: Johan van der Knijff <johan.vanderknijff@kb.nl> 119# Added sub-entries for JP2, JPX, JPM and MJ2 formats; added mimetypes 120# https://github.com/bitsgalore/jp2kMagic 121# 122# Now read value of 'Brand' field, which yields a few possibilities: 123# Update: Joerg Jenderek 124# URL: http://fileformats.archiveteam.org/wiki/JP2 125# Reference: http://mark0.net/download/triddefs_xml.7z/defs/b/bitmap-jpeg2k.trid.xml 126# Note: called by TrID "JPEG 2000 bitmap" 127>20 string \x6a\x70\x32\x20 Part 1 (JP2) 128# aliases image/jpeg2000, image/jpeg2000-image, image/x-jpeg2000-image 129!:mime image/jp2 130!:ext jp2 131# URL: http://fileformats.archiveteam.org/wiki/JPX 132# Reference: http://mark0.net/download/triddefs_xml.7z/defs/b/bitmap-jpx.trid.xml 133# Note: called by TrID "JPEG 2000 eXtended bitmap" 134>20 string \x6a\x70\x78\x20 Part 2 (JPX) 135!:mime image/jpx 136!:ext jpf/jpx 137# URL: http://fileformats.archiveteam.org/wiki/JPM 138# Reference: http://mark0.net/download/triddefs_xml.7z/defs/b/bitmap-jpm.trid.xml 139# Note: called by TrID "JPEG 2000 eXtended bitmap" 140>20 string \x6a\x70\x6d\x20 Part 6 (JPM) 141!:mime image/jpm 142!:ext jpm 143# URL: http://fileformats.archiveteam.org/wiki/MJ2 144# Reference: http://mark0.net/download/triddefs_xml.7z/defs/v/video-mj2.trid.xml 145# Note: called by TrID "Motion JPEG 2000 video" 146>20 string \x6d\x6a\x70\x32 Part 3 (MJ2) 147!:mime video/mj2 148!:ext mj2/mjp2 149 150# Type: JPEG 2000 codesream 151# From: Mathieu Malaterre <mathieu.malaterre@gmail.com> 152# Update: Joerg Jenderek 153# URL: http://fileformats.archiveteam.org/wiki/JPEG_2000_codestream 154# Reference: http://mark0.net/download/triddefs_xml.7z/defs/b/bitmap-jpc.trid.xml 155# Note: called by TrID "JPEG-2000 Code Stream bitmap" 1560 belong 0xff4fff51 JPEG 2000 codestream 157# value like: 0701h FF50h 158#>45 ubeshort x \b, at 45 %#4.4x 159#!:mime application/octet-stream 160# https://reposcope.com/mimetype/image/x-jp2-codestream 161!:mime image/x-jp2-codestream 162!:ext jpc/j2c/j2k 163# MAYBE also JHC like in byte_causal.jhc ? 164# WHAT IS THAT? DEAD ENTRY? 165#45 beshort 0xff52 166 167# JPEG extended range 168# URL: http://fileformats.archiveteam.org/wiki/JPEG_XR 169# Reference: https://www.itu.int/rec/T-REC-T.832 170# http://mark0.net/download/triddefs_xml.7z/defs/b/bitmap-wmp.trid.xml 171# Note: called by TrID "JPEG XR bitmap" 1720 string \x49\x49\xbc 173# FILE_VERSION_ID; shall be equal to 1; other values are reserved for future use 174>3 byte 1 175# FIRST_IFD_OFFSET; shall be an integer multiple of 2; so skip DROID fmt-590-signature-id-931.wdp 176>>4 lelong%2 0 JPEG-XR 177#!:mime image/vnd.ms-photo 178!:mime image/jxr 179# NO example for HDP ! 180!:ext jxr/wdp/hdp 181# MAYBE also WMP ? 182#!:ext jxr/wdp/hdp/wmp 183# moved from ./images (version 1.205 ), merged and 184# partly verified by XnView `nconvert -info abydos.jxr FLOWER.wdp` 185# example: https://web.archive.org/web/20160403012904/ 186# http://shikino.co.jp/solution/upfile/FLOWER.wdp.zip 187>90 bequad 0x574D50484F544F00 188>>98 byte&0x08 =0x08 \b, hard tiling 189>>99 byte&0x80 =0x80 \b, tiling present 190>>99 byte&0x40 =0x40 \b, codestream present 191>>99 byte&0x38 x \b, spatial xform= 192>>99 byte&0x38 0x00 \bTL 193>>99 byte&0x38 0x08 \bBL 194>>99 byte&0x38 0x10 \bTR 195>>99 byte&0x38 0x18 \bBR 196>>99 byte&0x38 0x20 \bBT 197>>99 byte&0x38 0x28 \bRB 198>>99 byte&0x38 0x30 \bLT 199>>99 byte&0x38 0x38 \bLB 200>>100 byte&0x80 =0x80 \b, short header 201>>>102 beshort+1 x \b, %d 202>>>104 beshort+1 x \bx%d 203>>100 byte&0x80 =0x00 \b, long header 204>>>102 belong+1 x \b, %x 205>>>106 belong+1 x \bx%x 206>>101 beshort&0xf x \b, bitdepth= 207>>>101 beshort&0xf 0x0 \b1-WHITE=1 208>>>101 beshort&0xf 0x1 \b8 209>>>101 beshort&0xf 0x2 \b16 210>>>101 beshort&0xf 0x3 \b16-SIGNED 211>>>101 beshort&0xf 0x4 \b16-FLOAT 212>>>101 beshort&0xf 0x5 \b(reserved 5) 213>>>101 beshort&0xf 0x6 \b32-SIGNED 214>>>101 beshort&0xf 0x7 \b32-FLOAT 215>>>101 beshort&0xf 0x8 \b5 216>>>101 beshort&0xf 0x9 \b10 217>>>101 beshort&0xf 0xa \b5-6-5 218>>>101 beshort&0xf 0xb \b(reserved %d) 219>>>101 beshort&0xf 0xc \b(reserved %d) 220>>>101 beshort&0xf 0xd \b(reserved %d) 221>>>101 beshort&0xf 0xe \b(reserved %d) 222>>>101 beshort&0xf 0xf \b1-BLACK=1 223>>101 beshort&0xf0 x \b, colorfmt= 224>>>101 beshort&0xf0 0x00 \bYONLY 225>>>101 beshort&0xf0 0x10 \bYUV240 226>>>101 beshort&0xf0 0x20 \bYWV422 227>>>101 beshort&0xf0 0x30 \bYWV444 228>>>101 beshort&0xf0 0x40 \bCMYK 229>>>101 beshort&0xf0 0x50 \bCMYKDIRECT 230>>>101 beshort&0xf0 0x60 \bNCOMPONENT 231>>>101 beshort&0xf0 0x70 \bRGB 232>>>101 beshort&0xf0 0x80 \bRGBE 233>>>101 beshort&0xf0 >0x80 \b(reserved %#x) 234 235# JPEG XL 236# From: Ian Tester 237# Update: Joerg Jenderek 238# URL: http://fileformats.archiveteam.org/wiki/JPEG_XL 239# Reference: http://mark0.net/download/triddefs_xml.7z/defs/b/bitmap-jxl.trid.xml 240# Note: called by TrID "JPEG XL bitmap" 2410 string \xff\x0a JPEG XL codestream 242#!:mime image/jxl 243!:mime image/x-jxl 244!:ext jxl 245 246# JPEG XL (transcoded JPEG file) 247# Update: Joerg Jenderek 248# URL: http://fileformats.archiveteam.org/wiki/JPEG_XL 249# Reference: http://mark0.net/download/triddefs_xml.7z/defs/b/bitmap-jxl-iso.trid.xml 250# Note: called by TrID "JPEG XL bitmap (ISOBMFF)" 2510 string \x00\x00\x00\x0cJXL\x20\x0d\x0a\x87\x0a JPEG XL container 252#!:mime image/jxl 253!:mime image/x-jxl 254!:ext jxl 255