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#include <stdio.h>
#include <pulse/volume.h>
#include <pulse/gccmacro.h>
int main(int argc, char *argv[]) {
pa_volume_t v;
pa_cvolume cv;
for (v = PA_VOLUME_MUTED; v <= PA_VOLUME_NORM*2; v += 256) {
double dB = pa_sw_volume_to_dB(v);
double f = pa_sw_volume_to_linear(v);
printf("Volume: %3i; percent: %i%%; decibel %0.2f; linear = %0.2f; volume(decibel): %3i; volume(linear): %3i\n",
v, (v*100)/PA_VOLUME_NORM, dB, f, pa_sw_volume_from_dB(dB), pa_sw_volume_from_linear(f));
}
for (v = PA_VOLUME_MUTED; v <= PA_VOLUME_NORM*2; v += 256) {
char s[PA_CVOLUME_SNPRINT_MAX], t[PA_SW_CVOLUME_SNPRINT_DB_MAX];
pa_cvolume_set(&cv, 2, v);
printf("Volume: %3i [%s] [%s]\n",
v,
pa_cvolume_snprint(s, sizeof(s), &cv),
pa_sw_cvolume_snprint_dB(t, sizeof(t), &cv));
}
return 0;
}
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