radio95/fm95
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Code Issues Activity

add changable master volume (it's more important than invidual volumes)

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This commit is contained in:
KubaPro010
2025-01-31 16:58:43 +01:00
parent fa2ba7f71a
commit 5188ee0f75
1 changed files with 13 additions and 17 deletions
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30
src/fm95.c
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@@ -90,6 +90,7 @@ void show_help(char *name) {
" -D,--dsb Force DSB [default: %d]\n"
" -R,--preemp Override preemphasis [default: %.2f µs]\n"
" -V,--calibrate Enable Calibration mode [default: off]"
" -A,--master_vol Set master volume [default: %.3f]"
,name
,DEFAULT_STEREO^1
,DEFAULT_STEREO
@@ -117,6 +118,7 @@ void show_help(char *name) {
,DEFAULT_STEREO_SSB
,DEFAULT_STEREO_SSB^1
,DEFAULT_PREEMPHASIS_TAU/0.000001
,MASTER_VOLUME
);
}
@@ -155,10 +157,11 @@ int main(int argc, char **argv) {
float preemphasis_tau = DEFAULT_PREEMPHASIS_TAU;
int calibration_mode = 0;
float master_volume = MASTER_VOLUME;
// #region Parse Arguments
int opt;
const char *short_opt = "msi:o:apM:C:f:F:L:c:l:PgSDR:hv";
const char *short_opt = "msi:o:apM:C:f:F:L:c:l:PgSDR:VA:hv";
struct option long_opt[] =
{
{"mono", no_argument, NULL, 'm'},
@@ -180,6 +183,7 @@ int main(int argc, char **argv) {
{"dsb", no_argument, NULL, 'D'},
{"preemp", required_argument, NULL, 'R'},
{"calibrate", no_argument, NULL, 'V'},
{"master_vol", no_argument, NULL, 'A'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'v'},
@@ -190,11 +194,9 @@ int main(int argc, char **argv) {
switch(opt) {
case 'm': // Mono
stereo = 0;
printf("Running in Mono\n");
break;
case 's': // Stereo
stereo = 1;
printf("Running in Stereo\n");
break;
case 'i': // Input Device
memcpy(audio_input_device, optarg, 63);
@@ -204,11 +206,9 @@ int main(int argc, char **argv) {
break;
case 'a': // Alsa output
alsa_output = 1;
printf("Outputting via alsa\n");
break;
case 'p': // Pulse output
alsa_output = 0;
printf("Outputting via pulse\n");
break;
case 'M': //MPX in
memcpy(audio_mpx_device, optarg, 63);
@@ -218,43 +218,39 @@ int main(int argc, char **argv) {
break;
case 'f': //SCA freq
sca_frequency = strtof(optarg, NULL);
printf("Running with a SCA frequency of %.2f\n", sca_frequency);
break;
case 'F': //SCA deviation
sca_deviation = strtof(optarg, NULL);
printf("Running with a SCA deviation of %.1f\n", sca_deviation);
break;
case 'L': //SCA clip
sca_clipper_threshold = strtof(optarg, NULL);
printf("Running with a SCA clipper threshold of %.3f\n", sca_clipper_threshold);
break;
case 'c': //Clipper
clipper_threshold = strtof(optarg, NULL);
printf("Running with a clipper threshold of %.3f\n", clipper_threshold);
break;
case 'l': //Soft Clipper
soft_clipper_threshold = strtof(optarg, NULL);
printf("Running with a soft clipper threshold of %.3f\n", soft_clipper_threshold);
break;
case 'P': //Polar
polar_stereo = 1;
printf("Using polar stereo\n");
break;
case 'g': //GE
polar_stereo = 0;
printf("Using Zenith/GE stereo\n");
break;
case 'S': //SSB
ssb = 1;
printf("Using SSB\n");
break;
case 'D': //DSB
ssb = 0;
printf("Using DSB\n");
break;
case 'R': // Preemp
preemphasis_tau = strtof(optarg, NULL)*0.000001;
printf("Running with a premp of %1.f µs\n", preemphasis_tau/0.000001);
break;
case 'V': // Calibration
calibration_mode = 1;
break;
case 'A': // Master vol
master_volume = strtof(optarg, NULL);
break;
case 'v': // Version
show_version();
@@ -414,7 +410,7 @@ int main(int argc, char **argv) {
while(to_run) {
for (int i = 0; i < BUFFER_SIZE; i++) {
output[i] = get_oscillator_sin_sample(&osc)*MASTER_VOLUME;
output[i] = get_oscillator_sin_sample(&osc)*master_volume;
}
if(alsa_output == 0) {
if (pa_simple_write(output_device, output, sizeof(output), &pulse_error) < 0) {
@@ -565,7 +561,7 @@ int main(int argc, char **argv) {
}
if(strlen(audio_mpx_device) != 0) output[i] += current_mpx_in*MPX_VOLUME;
if(strlen(audio_sca_device) != 0) output[i] += modulate_fm(&sca_mod, hard_clip(current_sca_in, sca_clipper_threshold))*SCA_VOLUME;
output[i] *= MASTER_VOLUME;
output[i] *= master_volume;
}
if(alsa_output == 0) {