opldecode(1)

💖 opldecode — the manual page, but make it make sense 💖

okay so bestie, you know how opldecode is a command from the General Commands Manual (section 1, the classic "run it in your shell" section, iykyk)? Yeah. This is that page, but actually fun to read. Let's go. 🫶

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✨ NAME ✨

opldecode — decode a Raster Object (opl) stream into human readable form.

like. it takes the cryptic printer bytes and turns them into something your eyeballs can actually enjoy. iconic behaviour fr fr. 💅

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✨ SYNOPSIS ✨

opldecode [options] <zjs-file

note the lil < there — this baby reads its input from stdin, so you pipe stuff in or redirect a file into it. no filename argument, periodt.

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✨ DESCRIPTION ✨

opldecode decodes a Raster Object (opl) stream into human readable form.

A Raster Object stream is the printer language used by some Konica Minolta printers, such as the KM magicolor 2480 MF. 💖

so yeah, if your printer speaks opl and you want to know what it's actually saying, this is your girl. 🌸

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✨ COMMAND LINE OPTIONS ✨

These are the options that can appear on the command line. short list, but every single one slays:

• -d basename — basename of .pbm file for saving decompressed planes. 🎀
• -h — print hex file offsets. yes bestie, hex. 0x-core. 🔥
• -o — print file offsets (just plain offsets, no hex energy). ✨
• -D level — set Debug level [0]. the default is 0, so if you want the tea you gotta ask for it. 👑

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✨ EXAMPLES ✨

Decode a Raster Object stream file created by foo2lava-wrapper -z1. 🦋

$ foo2lava-wrapper -z1 testpage.ps | opldecode -h
     0:   Event=StartOfJob;
    11:  OSVersion=WindowsXP;
    25:  DrvVersion=2.0.1410.0;
    3b:  Resolution=1200x600;
    4f:  RasterObject.Compression=JBIG;
    6d:  Sides=OneSided;
    7c:  MediaSize=custom_size_8.5x11in;
    9b:  MediaType=plain;
    ab:  MediaInputTrayCheck=top;
    c3:  RasterObject.BitsPerPixel=1;
    df:  RasterObject.Planes=00FFFF,0,0,0,0,0,0;
   106: RasterObject.Width=9792;
   11e: RasterObject.Height=6400;
   137: RasterObject.Data#20=

                    DL = 0, D = 0, P = 1, - = 0, XY = 9792 x 6400
                    L0 = 128, MX = 0, MY = 0
                    Order   = 3  ILEAVE SMID
                    Options = 92  LRLTWO TPDON TPBON DPON
                    50 stripes, 0 layers, 1 planes
   161: RasterObject.Data#32768=
  817a:     RasterObject.Data#32768=
 10193:    RasterObject.Data#3168=
 10e0b:    RasterObject.Planes=FF00FF,0,0,0,0,0,0;
 10e32:    RasterObject.Width=9792;
 10e4a:    RasterObject.Height=6400;
 10e63:    RasterObject.Data#20=

                    DL = 0, D = 0, P = 1, - = 0, XY = 9792 x 6400
                    L0 = 128, MX = 0, MY = 0
                    Order   = 3  ILEAVE SMID
                    Options = 92  LRLTWO TPDON TPBON DPON
                    50 stripes, 0 layers, 1 planes
 10e8d:    RasterObject.Data#32768=
 18ea6:    RasterObject.Data#32768=
 20ebf:    RasterObject.Data#19200=
 259d8:    RasterObject.Planes=FFFF00,0,0,0,0,0,0;
 259ff:    RasterObject.Width=9792;
 25a17:    RasterObject.Height=6400;
 25a30:    RasterObject.Data#20=

                    DL = 0, D = 0, P = 1, - = 0, XY = 9792 x 6400
                    L0 = 128, MX = 0, MY = 0
                    Order   = 3  ILEAVE SMID
                    Options = 92  LRLTWO TPDON TPBON DPON
                    50 stripes, 0 layers, 1 planes
 25a5a:    RasterObject.Data#32768=
 2da73:    RasterObject.Data#32768=
 35a8c:    RasterObject.Data#32768=
 3daa5:    RasterObject.Data#7056=
 3f64d:    RasterObject.Planes=000000,0,0,0,0,0,0;
 3f674:    RasterObject.Width=9792;
 3f68c:    RasterObject.Height=6400;
 3f6a5:    RasterObject.Data#20=

                    DL = 0, D = 0, P = 1, - = 0, XY = 9792 x 6400
                    L0 = 128, MX = 0, MY = 0
                    Order   = 3  ILEAVE SMID
                    Options = 92  LRLTWO TPDON TPBON DPON
                    50 stripes, 0 layers, 1 planes
 3f6cf:    RasterObject.Data#32768=
 476e8:    RasterObject.Data#17472=
 4bb41:    Event=EndOfPage;
 4bb51:    Event=EndOfJob;

see how the -h gives you all those cute lil hex offsets down the left side? that's the whole vibe. 👑 the RasterObject.Planes=... lines cycle through the colours — 00FFFF, FF00FF, FFFF00, 000000 — and every RasterObject.Data#... chunk gets its own offset so you can follow the stream like a story. 📖✨

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✨ FILES ✨

• /usr/bin/opldecode

that's where she lives. 🏠💖

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✨ SEE ALSO ✨

• foo2lava-wrapper(1)
• foo2opl(1)

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✨ AUTHOR ✨

Rick Richardson <rick.richardson@comcast.net> http://foo2lava.rkkda.com/

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and that's the whole page bestie!! 🎀 this came straight out of the General Commands Manual, section 1 — opldecode(1), no cap. go decode something gorgeous. 💜🦋