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Show the mute dB state correctly

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Show the mute dB state correctly as 'mute' in the status line.
This commit is contained in:
Takashi Iwai 2006-08-25 12:39:34 +02:00
parent ae9ddeb634
commit cb9cb72466
1 changed files with 22 additions and 14 deletions
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36
alsamixer/alsamixer.c
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@ -895,6 +895,18 @@ static void draw_capture_switch(int x, int y, int elem_index, int swl, int swr)
mvaddch (y - 1, x + 6, swr ? 'R' : ' ');
}
#ifndef SND_CTL_TLV_DB_GAIN_MUTE
#define SND_CTL_TLV_DB_GAIN_MUTE -9999999
#endif
static void dB_value(char *s, long val)
{
if (val <= SND_CTL_TLV_DB_GAIN_MUTE)
strcpy(s, "mute");
else
snprintf(s, 10, "%3.2f", (float)val / 100);
}
static void
mixer_update_cbar (int elem_index)
{
@ -989,16 +1001,14 @@ mixer_update_cbar (int elem_index)
long vdbleft, vdbright;
unsigned int length;
if (!snd_mixer_selem_get_playback_dB(elem, chn_left, &vdbleft)) {
char tmpl[10], tmpr[10];
dB_value(tmpl, vdbleft);
if ((chn_right != SND_MIXER_SCHN_UNKNOWN) &&
(!snd_mixer_selem_get_playback_dB(elem, chn_right, &vdbright))) {
float dbvol1, dbvol2;
dbvol1=(float)vdbleft/100;
dbvol2=(float)vdbright/100;
snprintf(tmp, 48, " [dB gain=%3.2f, %3.2f]",dbvol1, dbvol2);
dB_value(tmpr, vdbright);
snprintf(tmp, 48, " [dB gain=%s, %s]", tmpl, tmpr);
} else {
float dbvol1;
dbvol1=(float)vdbleft/100;
snprintf(tmp, 48, " [dB gain=%3.2f]",dbvol1);
snprintf(tmp, 48, " [dB gain=%s]", tmpl);
}
tmp[sizeof(tmp)-2] = 0;
length=strlen(tmp);
@ -1010,16 +1020,14 @@ mixer_update_cbar (int elem_index)
long vdbleft, vdbright;
unsigned int length;
if (!snd_mixer_selem_get_capture_dB(elem, chn_left, &vdbleft)) {
char tmpl[10], tmpr[10];
dB_value(tmpl, vdbleft);
if ((chn_right != SND_MIXER_SCHN_UNKNOWN) &&
(!snd_mixer_selem_get_capture_dB(elem, chn_right, &vdbright))) {
float dbvol1, dbvol2;
dbvol1=(float)vdbleft/100;
dbvol2=(float)vdbright/100;
snprintf(tmp, 48, " [dB gain=%3.2f, %3.2f]",dbvol1, dbvol2);
dB_value(tmpr, vdbright);
snprintf(tmp, 48, " [dB gain=%s, %s]", tmpl, tmpr);
} else {
float dbvol1;
dbvol1=(float)vdbleft/100;
snprintf(tmp, 48, " [dB gain=%3.2f]",dbvol1);
snprintf(tmp, 48, " [dB gain=%s]", tmpl);
}
tmp[sizeof(tmp)-2] = 0;
length=strlen(tmp);