radio95/rds95
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Code Issues Wiki Activity

refactor RDS modulator parameters and file handling; remove deprecated commands

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This commit is contained in:
kuba
2025-03-15 19:33:11 +01:00
parent 0cd72a503a
commit 222d5c7fa9
12 changed files with 219 additions and 254 deletions
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src/modulator.c
+62 -1
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@@ -2,6 +2,61 @@
static float waveform[2][FILTER_SIZE];
void Modulator_saveToFile(RDSModulatorParameters *emp, const char *option) {
char encoderPath[256];
snprintf(encoderPath, sizeof(encoderPath), "%s/.rdsEncoder", getenv("HOME"));
FILE *file;
RDSModulatorParameters tempEncoder;
file = fopen(encoderPath, "rb");
if (file != NULL) {
fread(&tempEncoder, sizeof(RDSModulatorParameters), 1, file);
fclose(file);
} else {
memcpy(&tempEncoder, emp, sizeof(RDSModulatorParameters));
}
if (strcmp(option, "LEVL") == 0) {
tempEncoder.level = emp->level;
} else if (strcmp(option, "RDSGEN") == 0) {
tempEncoder.rdsgen = emp->rdsgen;
} else if (strcmp(option, "ALL") == 0) {
tempEncoder.level = emp->level;
tempEncoder.rdsgen = emp->rdsgen;
}
file = fopen(encoderPath, "wb");
if (file == NULL) {
perror("Error opening file");
return;
}
fwrite(&tempEncoder, sizeof(RDSModulatorParameters), 1, file);
fclose(file);
}
void Modulator_loadFromFile(RDSModulatorParameters *emp) {
char encoderPath[256];
snprintf(encoderPath, sizeof(encoderPath), "%s/.rdsModulator", getenv("HOME"));
FILE *file = fopen(encoderPath, "rb");
if (file == NULL) {
perror("Error opening file");
return;
}
fread(emp, sizeof(RDSModulatorParameters), 1, file);
fclose(file);
}
int modulatorsaved() {
char encoderPath[256];
snprintf(encoderPath, sizeof(encoderPath), "%s/.rdsModulator", getenv("HOME"));
FILE *file = fopen(encoderPath, "rb");
if (file) {
fclose(file);
return 1;
}
return 0;
}
void init_rds_modulator(RDSModulator* rdsMod, RDSEncoder* enc) {
memset(rdsMod, 0, sizeof(*rdsMod));
rdsMod->level = 1.0f;
@@ -15,6 +70,12 @@ void init_rds_modulator(RDSModulator* rdsMod, RDSEncoder* enc) {
+waveform_biphase[j] : -waveform_biphase[j];
}
}
if(modulatorsaved()) {
Modulator_loadFromFile(rdsMod->params);
} else {
Modulator_saveToFile(rdsMod->params, "ALL");
}
}
float get_rds_sample(RDSModulator* rdsMod) {
@@ -51,5 +112,5 @@ float get_rds_sample(RDSModulator* rdsMod) {
rdsMod->sample_buffer[rdsMod->out_sample_index++] = 0;
if (rdsMod->out_sample_index == SAMPLE_BUFFER_SIZE)
rdsMod->out_sample_index = 0;
return sample*rdsMod->level*rdsMod->rdsgen;
return sample*rdsMod->params.level*rdsMod->params.rdsgen;
}