radio95/fm95
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Code Issues Activity

bs412 gating and also fix it

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This commit is contained in:
kuba
2026-05-04 13:28:30 +02:00
parent fafc201fb4
commit 6f929f0c18
3 changed files with 51 additions and 47 deletions
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src/fm95.c
+15 -19
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@@ -66,6 +66,7 @@ typedef struct {
float bs412_attack;
float bs412_release;
float bs412_max;
float bs412_gate;
float lpf_cutoff;
} FM95_Config;
@@ -328,6 +329,7 @@ static int config_handler(void* user, const char* section, const char* name, con
else if(MATCH("fm95", "bs412_attack")) pconfig->bs412_attack = strtof(value, NULL);
else if(MATCH("fm95", "bs412_release")) pconfig->bs412_release = strtof(value, NULL);
else if(MATCH("fm95", "bs412_max")) pconfig->bs412_max = strtof(value, NULL);
else if(MATCH("fm95", "bs412_gate")) pconfig->bs412_gate = strtof(value, NULL);
else if(MATCH("advanced", "lpf_order")) pconfig->lpf_order = atoi(value);
else if(MATCH("advanced", "stereo_ssb")) pconfig->stereo_ssb = atoi(value);
else if(MATCH("advanced", "preemp_unity")) pconfig->preemp_unity_freq = strtof(value, NULL);
@@ -437,25 +439,9 @@ void init_runtime(FM95_Runtime* runtime, const FM95_Config config) {
init_preemphasis(&runtime->preemp_r, (float)config.preemphasis * 1.0e-6f, config.sample_rate, config.preemp_unity_freq);
}
float last_gain = 0.0f;
float last_power = 0.0f;
uint8_t last_compress = 0;
uint8_t last_sample_counter = 0;
uint8_t last_second_counter = 0;
if(runtime->bs412.sample_rate == config.sample_rate) {
last_gain = runtime->bs412.gain;
last_power = runtime->bs412.avg_power;
last_compress = runtime->bs412.can_compress;
last_sample_counter = runtime->bs412.sample_counter;
last_second_counter = runtime->bs412.second_counter;
}
init_bs412(&runtime->bs412, config.mpx_deviation, config.mpx_power, config.bs412_attack, config.bs412_release, config.bs412_max, config.sample_rate);
runtime->bs412.gain = last_gain;
runtime->bs412.avg_power = last_power;
runtime->bs412.can_compress = last_compress;
runtime->bs412.sample_counter = last_sample_counter;
runtime->bs412.second_counter = last_second_counter;
if(runtime->bs412.init == true && (runtime->bs412.sample_rate == config.sample_rate)) {
reinit_bs412(&runtime->bs412, config.mpx_deviation, config.mpx_power, config.bs412_attack, config.bs412_release, config.bs412_max, config.bs412_gate)
} else init_bs412(&runtime->bs412, config.mpx_deviation, config.mpx_power, config.bs412_attack, config.bs412_release, config.bs412_max, config.bs412_gate, config.sample_rate);
init_stereo_encoder(&runtime->stencode, config.stereo_ssb, 4.0f, &runtime->osc, config.volumes.audio, config.volumes.pilot);
if(config.agc_max != 0.0) {
@@ -529,6 +515,14 @@ static void *handle_client(ipc_client_arg_t *arg) {
data->config->master_volume = val;
reply = 0;
break;
case 105:
// Set BS412 gate
memcpy(&val, buf + 1, sizeof(float));
data->config->bs412_gate = val;
reply = 0;
to_run = 0;
to_reload = 1;
break;
case 0xff:
// Fetch data
send(fd, data->run_result, sizeof(FM95_RunResult), 0);
@@ -585,6 +579,7 @@ int main(int argc, char **argv) {
.bs412_attack = 0.05f,
.bs412_release = 0.025f,
.bs412_max = 2.82f,
.bs412_gate = -20.0f,
.lpf_cutoff = 15000.0f,
};
@@ -642,6 +637,7 @@ int main(int argc, char **argv) {
.runtime = &runtime,
.run_result = &runres
};
ipc_ctx_t ctx;
ipc_ctx_t *pctx = &ctx;
if(create_ipc(pctx, handle_client, "/etc/fm95/ctl.socket", &fmdata) < 0) {