radio95/fm95
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this is better than the powf func

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KubaPro010
2025-07-10 19:23:40 +02:00
parent 7abf177b5f
commit db60762057
1 changed files with 10 additions and 6 deletions
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16
src/fm95.c
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@@ -229,10 +229,14 @@ int run_fm95(const FM95_Config config, FM95_Runtime* runtime) {
mpx = stereo_encode(&stencode, config.stereo, l, r);
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 the osc is a 4750 sine wave, then doing this would mean that stream 0 is 12, so 57 khz
if(osc_stream == 13) osc_stream++; // 61.75 KHz is not used, idk why but would be cool if it was
mpx += (rds_in[config.rds_streams*i+stream]*get_oscillator_cos_multiplier_ni(&osc, osc_stream)) * (config.volumes.rds * powf(config.volumes.rds_step, stream));
uint8_t osc_stream = 12 + stream;
if(osc_stream == 13) osc_stream++;
mpx += (rds_in[config.rds_streams * i + stream] * get_oscillator_cos_multiplier_ni(&osc, osc_stream)) * rds_level;
rds_level *= config.volumes.rds_step; // Prepare level for the next stream
}
}
@@ -287,7 +291,7 @@ static int config_handler(void* user, const char* section, const char* name, con
FM95_DeviceNames* dv = ctx->devices;
#define MATCH(s, n) strcmp(section, s) == 0 && strcmp(name, n) == 0
if (MATCH("fm95", "stereo")) {
pconfig->stereo = atoi(value);
} else if (MATCH("devices", "input")) {
@@ -369,7 +373,7 @@ static int config_handler(void* user, const char* section, const char* name, con
} else {
return 0; // Unknown section/name
}
return 1;
}
@@ -499,7 +503,7 @@ int main(int argc, char **argv) {
memset(&runtime, 0, sizeof(runtime));
int mpx_on = (strlen(dv_names.mpx) != 0);
int rds_on = (strlen(dv_names.rds) != 0 && config.rds_streams != 0);
int rds_on = (strlen(dv_names.rds) != 0 && config.rds_streams != 0);
err = setup_audio(&runtime, dv_names, config, mpx_on, rds_on);
if(err != 0) return err;