diff options
Diffstat (limited to 'magic/Magdir/modem')
| -rw-r--r-- | magic/Magdir/modem | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/magic/Magdir/modem b/magic/Magdir/modem new file mode 100644 index 0000000..5d59401 --- /dev/null +++ b/magic/Magdir/modem @@ -0,0 +1,92 @@ + +#------------------------------------------------------------------------------ +# $File: modem,v 1.11 2022/10/19 20:15:16 christos Exp $ +# modem: file(1) magic for modem programs +# +# From: Florian La Roche <florian@knorke.saar.de> +1 string PC\ Research,\ Inc Digifax-G3-File +>29 byte 1 \b, fine resolution +>29 byte 0 \b, normal resolution + +# Summary: CCITT Group 3 Facsimile in "raw" form (i.e. no header). +# Modified by: Joerg Jenderek +# URL: https://de.wikipedia.org/wiki/Fax +# http://fileformats.archiveteam.org/wiki/CCITT_Group_3 +# Reference: https://web.archive.org/web/20020628195336/http://www.netnam.vn/unescocourse/computervision/104.htm +# GRR: EOL of G3 is too general as it catches also TrueType fonts, Postscript PrinterFontMetric, others +0 short 0x0100 +# 16 0-bits near beginning like True Type fonts *.ttf, Postscript PrinterFontMetric *.pfm, FTYPE.HYPERCARD, XFER +>2 search/9 \0\0 +# maximal 7 0-bits for pixel sequences or 11 0-bits for EOL in G3 +>2 default x +# skip IRCAM file (VAX big-endian) ./audio +>>0 belong !0x0001a364 +# skip GEM Image data ./images +>>>2 beshort !0x0008 +# look for first keyword of Panorama database *.pan +>>>>11 search/262 \x06DESIGN +# skip Panorama database +>>>>11 default x +# old Apple DreamWorld DreamGrafix *.3200 with keyword at end of g3 looking files +>>>>>27118 search/1864 DreamWorld +>>>>>27118 default x +# skip MouseTrap/Mt.Defaults with file size 16 found on Golden Orchard Apple II CD Rom +>>>>>>8 ubequad !0x2e01010454010203 +# skip PICTUREH.SML found on Golden Orchard Apple II CD Rom +>>>>>>>8 ubequad !0x5dee74ad1aa56394 +# skip few (5/41) DEGAS mid-res bitmap (GEMINI01.PI2 GEMINI02.PI2 GEMINI03.PI2 CODE_RAM.PI2 TBX_DEMO.PI2) +# with file size 32034 +>>>>>>>>-0 offset !32034 raw G3 (Group 3) FAX, byte-padded +# version 5.25 labeled the entry above "raw G3 data, byte-padded" +!:mime image/g3fax +#!:apple ????TIFF +!:ext g3 +# unusual image starting with black pixel +#0 short 0x1300 raw G3 (Group 3) FAX +0 short 0x1400 +# 16 0-bits near beginning like PicturePuzzler found on Golden Orchard Apple CD Rom +>2 search/9 \0\0 +# maximal 7 0-bits for pixel sequences or 11 0-bits for EOL in G3 +>2 default x +# skip some (84/1246) MacBinary II/III (Cyberdog2.068k.smi.bin FileMakerPro4.img.bin Hypercard1.25.image.bin UsbStorage1.3.5.smi.bin) with "non random" numbers by versions values 81h/82h + 81h +>>122 ubeshort&0xFcFf !0x8081 raw G3 (Group 3) FAX +# version 5.25 labeled the above entry as "raw G3 data" +!:mime image/g3fax +!:ext g3 +# unusual image with black pixel near beginning +#0 short 0x1900 raw G3 (Group 3) FAX + +# +# Magic data for vgetty voice formats +# (Martin Seine & Marc Eberhard) + +# +# raw modem data version 1 +# +0 string RMD1 raw modem data +>4 string >\0 (%s / +>20 short >0 compression type %#04x) + +# +# portable voice format 1 +# +0 string PVF1\n portable voice format +>5 string >\0 (binary %s) + +# +# portable voice format 2 +# +0 string PVF2\n portable voice format +>5 string >\0 (ascii %s) + +# From: Bernd Nuernberger <bernd.nuernberger@web.de> +# Brooktrout G3 fax data incl. 128 byte header +# Common suffixes: 3??, BRK, BRT, BTR +0 leshort 0x01bb +>2 leshort 0x0100 Brooktrout 301 fax image, +>>9 leshort x %d x +>>0x2d leshort x %d +>>6 leshort 200 \b, fine resolution +>>6 leshort 100 \b, normal resolution +>>11 byte 1 \b, G3 compression +>>11 byte 2 \b, G32D compression |