# $OpenBSD: images,v 1.10 2009/04/24 18:54:34 chl Exp $ #------------------------------------------------------------------------------ # images: file(1) magic for image formats (see also "iff", and "c-lang" for # XPM bitmaps) # # originally from jef@helios.ee.lbl.gov (Jef Poskanzer), # additions by janl@ifi.uio.no as well as others. Jan also suggested # merging several one- and two-line files into here. # # little magic: PCX (first byte is 0x0a) # Tag Image File Format, from Daniel Quinlan (quinlan@yggdrasil.com) # The second word of TIFF files is the TIFF version number, 42, which has # never changed. The TIFF specification recommends testing for it. 0 string MM\x00\x2a TIFF image data, big-endian !:mime image/tiff 0 string II\x2a\x00 TIFF image data, little-endian !:mime image/tiff # PNG [Portable Network Graphics, or "PNG's Not GIF"] images # (Greg Roelofs, newt@uchicago.edu) # (Albert Cahalan, acahalan@cs.uml.edu) # # 137 P N G \r \n ^Z \n [4-byte length] H E A D [HEAD data] [HEAD crc] ... # 0 string \x89PNG PNG image data, !:mime image/png >4 belong !0x0d0a1a0a CORRUPTED, >4 belong 0x0d0a1a0a >>16 belong x %ld x >>20 belong x %ld, >>24 byte x %d-bit >>25 byte 0 grayscale, >>25 byte 2 \b/color RGB, >>25 byte 3 colormap, >>25 byte 4 gray+alpha, >>25 byte 6 \b/color RGBA, #>>26 byte 0 deflate/32K, >>28 byte 0 non-interlaced >>28 byte 1 interlaced 1 string PNG PNG image data, CORRUPTED # GIF 0 string GIF8 GIF image data !:mime image/gif >4 string 7a \b, version 8%s, >4 string 9a \b, version 8%s, >6 leshort >0 %hd x >8 leshort >0 %hd #>10 byte &0x80 color mapped, #>10 byte&0x07 =0x00 2 colors #>10 byte&0x07 =0x01 4 colors #>10 byte&0x07 =0x02 8 colors #>10 byte&0x07 =0x03 16 colors #>10 byte&0x07 =0x04 32 colors #>10 byte&0x07 =0x05 64 colors #>10 byte&0x07 =0x06 128 colors #>10 byte&0x07 =0x07 256 colors # ITC (CMU WM) raster files. It is essentially a byte-reversed Sun raster, # 1 plane, no encoding. 0 string \361\0\100\273 CMU window manager raster image data >4 lelong >0 %d x >8 lelong >0 %d, >12 lelong >0 %d-bit # Magick Image File Format 0 string id=ImageMagick MIFF image data # FIG (Facility for Interactive Generation of figures), an object-based format 0 search/1 #FIG FIG image text >5 string x \b, version %.3s # XPM icons (Greg Roelofs, newt@uchicago.edu) # note possible collision with C/REXX entry in c-lang; currently commented out 0 search/1 /*\ XPM\ */ X pixmap image text # Utah Raster Toolkit RLE images (janl@ifi.uio.no) #0 leshort 0xcc52 RLE image data, #>6 leshort x %d x #>8 leshort x %d #>2 leshort >0 \b, lower left corner: %d #>4 leshort >0 \b, lower right corner: %d #>10 byte&0x1 =0x1 \b, clear first #>10 byte&0x2 =0x2 \b, no background #>10 byte&0x4 =0x4 \b, alpha channel #>10 byte&0x8 =0x8 \b, comment #>11 byte >0 \b, %d color channels #>12 byte >0 \b, %d bits per pixel #>13 byte >0 \b, %d color map channels # #2048 string PCD_IPI Kodak Photo CD image pack file #>0xe02 byte&0x03 0x00 , landscape mode #>0xe02 byte&0x03 0x01 , portrait mode #>0xe02 byte&0x03 0x02 , landscape mode #>0xe02 byte&0x03 0x03 , portrait mode #0 string PCD_OPA Kodak Photo CD overview pack file # FITS format. Jeff Uphoff # FITS is the Flexible Image Transport System, the de facto standard for # data and image transfer, storage, etc., for the astronomical community. # (FITS floating point formats are big-endian.) 0 string SIMPLE\ \ = FITS image data >109 string 8 \b, 8-bit, character or unsigned binary integer >108 string 16 \b, 16-bit, two's complement binary integer >107 string \ 32 \b, 32-bit, two's complement binary integer >107 string -32 \b, 32-bit, floating point, single precision >107 string -64 \b, 64-bit, floating point, double precision # SMJPEG. A custom Motion JPEG format used by Loki Entertainment # Software Torbjorn Andersson . # 0 string \0\nSMJPEG SMJPEG >8 belong x %d.x data # According to the specification you could find any number of _TXT # headers here, but I can't think of any way of handling that. None of # the SMJPEG files I tried it on used this feature. Even if such a # file is encountered the output should still be reasonable. >16 string _SND \b, >>24 beshort >0 %d Hz >>26 byte 8 8-bit >>26 byte 16 16-bit >>28 string NONE uncompressed # >>28 string APCM ADPCM compressed >>27 byte 1 mono >>28 byte 2 stereo # Help! Isn't there any way to avoid writing this part twice? >>32 string _VID \b, # >>>48 string JFIF JPEG >>>40 belong >0 %d frames >>>44 beshort >0 (%d x >>>46 beshort >0 %d) >16 string _VID \b, # >>32 string JFIF JPEG >>24 belong >0 %d frames >>28 beshort >0 (%d x >>30 beshort >0 %d) 0 string Paint\ Shop\ Pro\ Image\ File Paint Shop Pro Image File # "thumbnail file" (icon) # descended from "xv", but in use by other applications as well (Wolfram Kleff) 0 string P7\ 332 XV "thumbnail file" (icon) data # partimage: file(1) magic for PartImage files (experimental, incomplete) # Author: Hans-Joachim Baader 0 string PaRtImAgE-VoLuMe PartImage >0x0020 string 0.6.1 file version %s >>0x0060 lelong >-1 volume %ld #>>0x0064 8 byte identifier #>>0x007c reserved >>0x0200 string >\0 type %s >>0x1400 string >\0 device %s, >>0x1600 string >\0 original filename %s, # Some fields omitted >>0x2744 lelong 0 not compressed >>0x2744 lelong 1 gzip compressed >>0x2744 lelong 2 bzip2 compressed >>0x2744 lelong >2 compressed with unknown algorithm >0x0020 string >0.6.1 file version %s >0x0020 string <0.6.1 file version %s # DCX is multi-page PCX, using a simple header of up to 1024 # offsets for the respective PCX components. # From: Joerg Wunsch 0 lelong 987654321 DCX multi-page PCX image data # Simon Walton # Kodak Cineon format for scanned negatives # http://www.kodak.com/US/en/motion/support/dlad/ # 0 lelong 0xd75f2a80 Cineon image data # >200 belong >0 \b, %ld x # >204 belong >0 %ld #----------------------------------------------------------------------- # From Albert Cahalan # uncompressed 5:6:5 HighColor image for OLPC XO firmware icons 0 string C565 OLPC firmware icon image data >4 leshort x %u x >6 leshort x %u