code.delx.au - pulseaudio/blob - polyp/voltest.c

   1 /* $Id$ */
   2
   3 #include <stdio.h>
   4
   5 #include <polyp/volume.h>
   6 #include "gccmacro.h"
   7
   8 int main(PA_GCC_UNUSED int argc, PA_GCC_UNUSED char *argv[]) {
   9     pa_volume_t v;
  10
  11     for (v = PA_VOLUME_MUTED; v <= PA_VOLUME_NORM*2; v += 256) {
  12
  13         double dB = pa_sw_volume_to_dB(v);
  14         double f = pa_sw_volume_to_linear(v);
  15
  16         printf("Volume: %3i; percent: %i%%; decibel %0.2f; linear = %0.2f; volume(decibel): %3i; volume(linear): %3i\n",
  17                v, (v*100)/PA_VOLUME_NORM, dB, f, pa_sw_volume_from_dB(dB), pa_sw_volume_from_linear(f));
  18
  19     }
  20 }