From 66e0f462d379b1cb3f42e988eb8ccca614d967d5 Mon Sep 17 00:00:00 2001
From: jaseg <git@jaseg.de>
Date: Sun, 23 Jun 2024 23:13:34 +0200
Subject: Add test data and working manchester decoder

---
 barcode_gen.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

(limited to 'barcode_gen.py')

diff --git a/barcode_gen.py b/barcode_gen.py
index 7dfb677..5a9aa30 100644
--- a/barcode_gen.py
+++ b/barcode_gen.py
@@ -5,7 +5,7 @@ import itertools
 import textwrap
 
 import click
-from reedmuller import reedmuller
+from reedmuller.reedmuller import ReedMuller
 
 
 class Tag:
@@ -81,15 +81,19 @@ class Tag:
 @click.argument('outfile', type=click.File('w'), default='-')
 def cli(data, outfile, height, text, font, font_size, bar_width, margin, color, text_color, dpi):
     data = int(data, 16)
+    data &= 0x3ffffff
     text_color = text_color or color
 
-    NUM_BITS = 26
+    rm = ReedMuller(3, 5)
 
-    data_bits = [bool(data & (1<<i)) for i in range(NUM_BITS)]
+    data_bits = [bool(data & (1<<i)) for i in range(rm.message_length())]
+    data_bits = rm.encode(data_bits)
+    print('Payload bits:', ''.join([str(int(x)) for x in data_bits]))
     data_encoded = itertools.chain(*[
         (a, not a) for a in data_bits
         ])
     data_encoded = [True, False, True, False, *data_encoded, False, True, True, False, True]
+    print('Encoded data:', ''.join([str(int(x)) for x in data_encoded]))
 
     width = len(data_encoded) * bar_width
     # 1 px = 0.75 pt
-- 
cgit