lavadecode(1)

📦
version 20200505dfsg0 · 11 versions
, in ubuntu noble, ubuntu questing

🌸 NAME 🌸

lavadecode — she decodes a LAVAFLOW stream into human readable form. That's the whole gig, and she does it flawlessly 💅 (this is the lavadecode(1) page, bestie, so you know it's a command, not some library nonsense).

✨ SYNOPSIS ✨

lavadecode [options] <lavaflow-file

see that little <? yeah. the lavaflow file comes in on stdin. no arguments, just vibes and a redirect 🫶

🦋 DESCRIPTION 🦋

okay so lavadecode decodes a LAVAFLOW stream into human readable form. that's it. that's the mission. periodt.

A LAVAFLOW stream is the printer language used by some Konica Minolta printers, such as the KM magicolor 2530 DL. so if you've got one of those bad boys and a raw dump you can't read, this is your girl 🖨️✨

💅 COMMAND LINE OPTIONS 💅

these are the options that can appear on the command line. there are only four. she's low-maintenance like that 🎀

  • -d basename — the basename of the .pbm file where she saves the decompressed planes. like, you give her the name, she gives you the planes 🦋
  • -h — print hex file offsets. hex girlies rise 🙈
  • -o — print file offsets. no hex, just plain offsets, we keep it simple 💜
  • -D level — set the Debug level. default is [0], so if you want the tea, crank it up 🔥

🍓 EXAMPLES 🍓

okay bestie, watch this. decode an LAVAFLOW stream file created by foo2lava:

$ lavadecode -h < testpage.prn
     0: \033%-12345X@PJL JOB NAME="stdin"
    1f: \033%-12345X@PJL JOB USERNAME=""
    3d: \033%-12345X@PJL JOB TIMESTAMP="07/20/2007"
    66: \033%-12345X@PJL JOB OSINFO="Linux/2.6.20-1.2316.fc5"
    99: \033%-12345X@PJL ENTER LANGUAGE=LAVAFLOW
    bf: \033E                  RESET
    c1: \033&l0S               DUPLEX: [off]
    c6: \033&l0G
    cb: \033&u1200D            X RESOLUTION: [1200]
    d3: \033&l1X               COPIES: [1]
    d8: \033&x1X               TRANSMIT ONCE COPIES: [1]
    dd: \033&l0O               ORIENTATION: [port]
    e2: \033*r1U               NBIE: [1]
    e7: \033*g8W               BW/COLOR: [8]
                                fmt=2 np=1
                                BLACK:  X=1200, Y=600, unk=0, #=4(2)
    f4: \033*b1234M            COMPRESSION: [1234] (JBIG)
    fc: \033&l2A               PAGE SIZE: [letter]
   101: \033&l255H             PAPER SOURCE: [auto]
   108: \033&l0M               MEDIA TYPE: [plain]
   10d: \033&l0E               TOP MARGIN: [0]
   112: \033*r9792S            X RASTER: [9792,0x2640]
   11a: \033*r6400T            Y RASTER: [6400,0x1900]
   122: \033&l0U
   127: \033&l0Z
   12c: \033*p200X             X OFFSET: [200]
   133: \033*p200Y             Y OFFSET: [200]
   13a: \033*r1A               [Page 1]
   13f: \033*b20V              [black]
                                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
   159: \033*b65536V           JBIG data (first) [65536,0x10000]
                         ff 02 c2 79 54 3e be e1 a0 de 08 9a b1 d2 c2 59
                        ... ae 88 ef a7 c7 96 d3 96 a6 d7 2c 06 38 75 22 44
 10162: \033*b26432W           JBIG data (end) [26432,0x6740]
                         0e 89 66 ce 01 41 41 41 41 41 41 41 41 41 41 41
                        ... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 168ab: \033*x3887138K         BLACK DOTS: [3887138]
 168b6: \033*x58781662W        BLACK WHITEDOTS: [58781662]
 168c2: \033*rC                END PAGE
 168c6: \033&l0H               PAPER SOURCE: [eject]
 168cb: \033E                  RESET
 168cd: \033%-12345X

like, look at her go 😭 she's naming every PJL thing, translating every escape sequence, counting the stripes, showing you the actual JBIG hex bytes... main character energy, honestly ✨

🧚 FILES 🧚

  • /usr/bin/lavadecode

that's where she lives. come visit 🏠💖

🌈 SEE ALSO 🌈

go read those too, they're her besties 💕

👑 AUTHOR 👑

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

absolute legend, we stan 🫶

and that's the whole page, bestie 💜 it comes out of the General Commands Manual — that's the source, and ngl the footer doesn't give us a date, so no timestamp for you, sorry 🎀 go decode something, you've got this 💅✨

📦 where this page comes from