From 4e7b161e42a9bff3e044fce619c8c219cdd151c6 Mon Sep 17 00:00:00 2001
From: KubaPro010 <kuba.pro010@gmail.com>
Date: Tue, 11 Mar 2025 20:32:17 +0100
Subject: [PATCH] i really don't think this wil lwork

---
 .vscode/.server-controller-port.log | 2 +-
 gen_wave.py                         | 8 +++++++-
 src/rds.h                           | 6 +++---
 src/waveforms.c                     | 2 +-
 src/waveforms.h                     | 2 +-
 5 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/.vscode/.server-controller-port.log b/.vscode/.server-controller-port.log
index 8cba245..d709988 100644
--- a/.vscode/.server-controller-port.log
+++ b/.vscode/.server-controller-port.log
@@ -1,5 +1,5 @@
 {
   "port": 13452,
-  "time": 1741711510603,
+  "time": 1741720487844,
   "version": "0.0.3"
 }
\ No newline at end of file
diff --git a/gen_wave.py b/gen_wave.py
index b1ca6bb..4a62126 100644
--- a/gen_wave.py
+++ b/gen_wave.py
@@ -2,7 +2,7 @@ import math
 import io, os
 import matplotlib.pyplot as plt
 
-sample_rate = 9500
+sample_rate = 4750 
 
 # next 2 funcs are modified from ChristopheJacquet's pydemod
 def rrcosfilter(NumSamples):
@@ -57,6 +57,12 @@ def generate():
     count = int(offset / 10**(len(str(offset)) - 1))  # 760 / 100 = 7
     l = int(sample_rate / 1187.5) // 2  # 16/2 = 8
     if l == 1: raise Exception("Sample rate too small")
+    if count*l < 2*l:
+        # idk from where is this
+        offset *= 2
+        offset += 3
+        count *= 4
+        l *= 2
     print(f"{offset=} {count=} {l=}")
 
     sample = [0.0] * (count*l)
diff --git a/src/rds.h b/src/rds.h
index fe3d099..f783f6b 100644
--- a/src/rds.h
+++ b/src/rds.h
@@ -10,9 +10,9 @@
 
 #define GROUP_LENGTH		4
 #define BITS_PER_GROUP		(GROUP_LENGTH * (BLOCK_SIZE + POLY_DEG))
-#define RDS_SAMPLE_RATE		9500
-#define SAMPLES_PER_BIT     8
-#define FILTER_SIZE	 24
+#define RDS_SAMPLE_RATE		4750
+#define SAMPLES_PER_BIT     4
+#define FILTER_SIZE	 32
 #define SAMPLE_BUFFER_SIZE	(SAMPLES_PER_BIT + FILTER_SIZE)
 
 /* Text items
diff --git a/src/waveforms.c b/src/waveforms.c
index 78e2b96..c7078ca 100644
--- a/src/waveforms.c
+++ b/src/waveforms.c
@@ -6,5 +6,5 @@
    Released under the GNU GPL v3 license.
 */
 
-float waveform_biphase[24] = {0.002532628775852384, -6.480266785053461e-18, -0.004522551385450683, 2.807603181808536e-17, 0.00940690688173742, -2.1836329850641248e-17, -0.025868993924777907, -1.1701083086090883e-17, 0.1552139635486674, 0.4, 0.5432488724203361, 0.4, 0.0, -0.4, -0.5432488724203361, -0.4, -0.1552139635486674, 1.1701083086090883e-17, 0.025868993924777907, 2.1836329850641248e-17, -0.00940690688173742, -2.807603181808536e-17, 0.004522551385450683, 6.480266785053461e-18};
+float waveform_biphase[32] = {0.00048792898537812, -0.0006259889636969852, 0.0008222549152560989, -0.0011115066443382834, 0.0015573307379464962, -0.0022850785947540293, 0.0035676349628880324, -0.006086822099947743, 0.011939535657589805, -0.030391545310228592, 0.16462087043040483, 0.5173798784955582, 0.1552139635486674, 0.0, -0.1552139635486674, -0.5173798784955582, -0.16462087043040483, 0.030391545310228592, -0.011939535657589805, 0.006086822099947743, -0.0035676349628880324, 0.0022850785947540293, -0.0015573307379464962, 0.0011115066443382834, -0.0008222549152560989, 0.0006259889636969852, -0.00048792898537812, 0.0003878864829215714, -0.0003135635627245806, 0.00025716303373497773, -0.00021357134703021155, 0.00017933642000528266};
 
diff --git a/src/waveforms.h b/src/waveforms.h
index c657cad..de33dee 100644
--- a/src/waveforms.h
+++ b/src/waveforms.h
@@ -6,4 +6,4 @@
    Released under the GNU GPL v3 license.
 */
 
-extern float waveform_biphase[24];
+extern float waveform_biphase[32];