From 5a534aca370dd4b4c7b3e07c02a68ff70bbb2988 Mon Sep 17 00:00:00 2001
From: KubaPro010 <kuba.pro010@gmail.com>
Date: Sun, 3 Aug 2025 21:11:59 +0200
Subject: [PATCH] add reload warnings and run clock at 1187.5 khz instead of
 4750

---
 .vscode/.server-controller-port.log |  2 +-
 src/fm95.c                          | 19 +++++++++++++++----
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/.vscode/.server-controller-port.log b/.vscode/.server-controller-port.log
index 9eb6188..87558b2 100644
--- a/.vscode/.server-controller-port.log
+++ b/.vscode/.server-controller-port.log
@@ -1,5 +1,5 @@
 {
   "port": 13452,
-  "time": 1754228131242,
+  "time": 1754247434245,
   "version": "0.0.3"
 }
\ No newline at end of file
diff --git a/src/fm95.c b/src/fm95.c
index 704d784..33937d8 100644
--- a/src/fm95.c
+++ b/src/fm95.c
@@ -98,6 +98,13 @@ typedef struct {
     FM95_DeviceNames* devices;
 } FM95_SetupContext;
 
+bool compare_dvs(const FM95_DeviceNames *a, const FM95_DeviceNames *b) {
+    return strcmp(a->input,  b->input)  == 0 &&
+           strcmp(a->output, b->output) == 0 &&
+           strcmp(a->mpx,    b->mpx)    == 0 &&
+           strcmp(a->rds,    b->rds)    == 0;
+}
+
 static void stop(int signum) {
 	(void)signum;
 	printf("\nReceived stop signal.\n");
@@ -219,8 +226,8 @@ int run_fm95(const FM95_Config config, FM95_Runtime* runtime) {
 			if(rds_on && config.stereo != 2) { // disable rds on polar stereo
 				float rds_level = config.volumes.rds;
 				for(uint8_t stream = 0; stream < config.rds_streams; stream++) {
-					uint8_t osc_stream = 12 + stream;
-					if(osc_stream == 13) osc_stream++;
+					uint8_t osc_stream = 48 + (stream*4);
+					if(osc_stream >= 52) osc_stream += 4;
 
 					mpx += (runtime->rds_in[config.rds_streams * i + stream] * get_oscillator_cos_multiplier_ni(&runtime->osc, osc_stream)) * rds_level;
 
@@ -431,7 +438,7 @@ void init_runtime(FM95_Runtime* runtime, FM95_Config config, bool rds_on) {
 		init_oscillator(&runtime->osc, (config.calibration == 2) ? 60 : 400, config.sample_rate);
 		return;
 	}
-	else init_oscillator(&runtime->osc, (config.stereo == 2) ? 7812.5 : 4750, config.sample_rate);
+	else init_oscillator(&runtime->osc, (config.stereo == 2) ? 1953.125 : 1187.5, config.sample_rate);
 
 	if(config.lpf_cutoff != 0) {
 		runtime->lpf_l = iirfilt_rrrf_create_prototype(LIQUID_IIRDES_CHEBY2, LIQUID_IIRDES_LOWPASS, LIQUID_IIRDES_SOS, config.lpf_order, (config.lpf_cutoff/config.sample_rate), 0.0f, 1.0f, 60.0f);
@@ -450,7 +457,7 @@ void init_runtime(FM95_Runtime* runtime, FM95_Config config, bool rds_on) {
 
 	if(config.tilt != 0) tilt_init(&runtime->tilter, config.tilt);
 
-	init_stereo_encoder(&runtime->stencode, 4.0f, &runtime->osc, (config.stereo == 2), config.volumes.mono, config.volumes.pilot, config.volumes.stereo);
+	init_stereo_encoder(&runtime->stencode, 16.0f, &runtime->osc, (config.stereo == 2), config.volumes.mono, config.volumes.pilot, config.volumes.stereo);
 
 	if(config.agc_max != 0.0) {
 		last_gain = 1.0f;
@@ -511,6 +518,7 @@ int main(int argc, char **argv) {
 		.mpx = "\0",
 		.rds = "\0"
 	};
+	FM95_DeviceNames old_dv_names = dv_names;
 
 	int err;
 	err = parse_arguments(argc, argv, &config);
@@ -560,6 +568,9 @@ int main(int argc, char **argv) {
 				printf("Could not parse the config file. (error code as return code)\n");
 				return err;
 			}
+			if(!compare_dvs(&dv_names, &old_dv_names)) printf("Warning! Audio Device name changes are not reloaded, please restart for that to take effect.\n");
+			old_dv_names = dv_names;
+			if(config.rds_streams != old_streams) printf("Warning! change of rds_streams requires a restart, not a reload.\n");
 			config.rds_streams = old_streams;
 			cleanup_runtime(&runtime, config);
 			init_runtime(&runtime, config, rds_on);