int asound_get_volume()
{
assert(m_elem != NULL);
// Return the current volume value from [0-100]
return rint(100 * get_normalized_playback_volume(m_elem, 0));
}
/* Gets mixer volume with given type, if left and right channel volume differ,
* then gives the larger one.
* In case of an error returns "-1". */
void get_vol(snd_mixer_elem_t* elem, enum Volume_type volume_type, long int* vol)
{
long int l, r;
if (volume_type == hardware) {
// TODO: check return value (int) for errors
snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_FRONT_LEFT, &l);
snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_FRONT_RIGHT, &r);
}
else if (volume_type == decibels) {
// TODO: check return value (int) for errors
snd_mixer_selem_get_playback_dB(elem, SND_MIXER_SCHN_FRONT_LEFT, &l);
snd_mixer_selem_get_playback_dB(elem, SND_MIXER_SCHN_FRONT_RIGHT, &r);
}
else if (volume_type == alsa_percentage) {
double l_norm = get_normalized_playback_volume(elem, SND_MIXER_SCHN_FRONT_LEFT);
double r_norm = get_normalized_playback_volume(elem, SND_MIXER_SCHN_FRONT_RIGHT);
PD_M("Got alsa_percentage volumes: %g, %g\n", l_norm, r_norm);
l = lround(l_norm*100);
r = lround(r_norm*100);
}
else if (volume_type == hardware_percentage) {
long int min, max;
snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_FRONT_LEFT, &l);
snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_FRONT_RIGHT, &r);
long int vol_to_percentage = l >= r ? l : r;
change_range(&vol_to_percentage, min, max, 0, 100, false);
*vol = vol_to_percentage;
return;
}
else {
// Error
l = -1;
r = -1;
}
*vol = l >= r ? l : r;
PD_M("get_vol returns: %li\n", *vol);
}
int asound_get_volume()
{
if(m_elem == NULL) {
return 0;
}
// Return the current volume value from [0-100]
if(config_get_decibel_scale())
{
long pmin, pmax, value;
snd_mixer_selem_get_playback_volume_range(m_elem, &pmin, &pmax);
snd_mixer_selem_get_playback_volume(m_elem, 0, &value);
return 100 * (value - pmin) / (pmax - pmin);
}
else
return rint(100 * get_normalized_playback_volume(m_elem, 0));
}
