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imported a new vol_perc() function, this should fix #12 (UNTESTED)

This commit is contained in:
Ali H. Fardan 2016-09-05 01:18:55 +03:00
parent 9fa858daea
commit 52d19f955e
1 changed files with 20 additions and 33 deletions
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51
slstatus.c
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@ -482,49 +482,36 @@ uid(void)
static char *
vol_perc(const char *soundcard)
{
/*
* TODO: FIXME:
* https://github.com/drkh5h/slstatus/issues/12
*/
int mute = 0;
long vol = 0, max = 0, min = 0;
vol_perc(const char *snd_card)
{ /* thanks to botika for this function */
long int vol, max, min;
snd_mixer_t *handle;
snd_mixer_elem_t *pcm_mixer, *mas_mixer;
snd_mixer_selem_id_t *vol_info, *mute_info;
snd_mixer_elem_t *elem;
snd_mixer_selem_id_t *s_elem;
snd_mixer_open(&handle, 0);
snd_mixer_attach(handle, soundcard);
snd_mixer_attach(handle, snd_card);
snd_mixer_selem_register(handle, NULL, NULL);
snd_mixer_load(handle);
snd_mixer_selem_id_malloc(&s_elem);
snd_mixer_selem_id_set_name(s_elem, "Master");
elem = snd_mixer_find_selem(handle, s_elem);
snd_mixer_selem_id_malloc(&vol_info);
snd_mixer_selem_id_malloc(&mute_info);
if (vol_info == NULL || mute_info == NULL) {
fprintf(stderr, "Could not get alsa volume.\n");
if (elem == NULL) {
snd_mixer_selem_id_free(s_elem);
snd_mixer_close(handle);
perror("alsa error: ");
return smprintf(UNKNOWN_STR);
}
snd_mixer_selem_id_set_name(vol_info, ALSA_CHANNEL);
snd_mixer_selem_id_set_name(mute_info, ALSA_CHANNEL);
pcm_mixer = snd_mixer_find_selem(handle, vol_info);
mas_mixer = snd_mixer_find_selem(handle, mute_info);
snd_mixer_selem_get_playback_volume_range((snd_mixer_elem_t *)pcm_mixer, &min, &max);
snd_mixer_selem_get_playback_volume((snd_mixer_elem_t *)pcm_mixer, SND_MIXER_SCHN_MONO, &vol);
snd_mixer_selem_get_playback_switch(mas_mixer, SND_MIXER_SCHN_MONO, &mute);
snd_mixer_handle_events(handle);
snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
snd_mixer_selem_get_playback_volume(elem, 0, &vol);
if (vol_info)
snd_mixer_selem_id_free(vol_info);
if (mute_info)
snd_mixer_selem_id_free(mute_info);
if (handle)
snd_mixer_close(handle);
snd_mixer_selem_id_free(s_elem);
snd_mixer_close(handle);
if (!mute)
return smprintf("mute");
else
return smprintf("%d%%", (vol * 100) / max);
return smprintf("%d", (vol * 100) / max);
}
static char *