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amixer - show dB values for simple mixer interface (which is default)

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This commit is contained in:
Jaroslav Kysela 2006-07-27 11:02:00 +02:00
parent dedc292efa
commit e45ba7e644
3 changed files with 39 additions and 8 deletions
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6
alsamixer/go Normal file → Executable file
View file

@ -2,7 +2,7 @@
#DBG="gdb --args"
ALSA_MIXER_SIMPLE_MODULES="$HOME/alsa/alsa-lib/src/mixer/simple/.libs" \
ALSA_MIXER_SIMPLE="$HOME/alsa/alsa-lib/src/conf/smixer.conf" \
LD_PRELOAD="$HOME/alsa/alsa-lib/src/.libs/libasound.so" \
ALSA_MIXER_SIMPLE_MODULES="$HOME/hg/alsa-lib/src/mixer/simple/.libs" \
ALSA_MIXER_SIMPLE="$HOME/hg/alsa-lib/src/conf/smixer.conf" \
LD_PRELOAD="$HOME/hg/alsa-lib/src/.libs/libasound.so" \
exec $DBG ./alsamixer "$@"

35
amixer/amixer.c
View file

@ -387,9 +387,9 @@ static void print_spaces(unsigned int spaces)
putc(' ', stdout);
}
static void print_dB(int dB)
static void print_dB(long dB)
{
printf("%i.%02idB", dB / 100, (dB < 0 ? -dB : dB) % 100);
printf("%li.%02lidB", dB / 100, (dB < 0 ? -dB : dB) % 100);
}
static void decode_tlv(unsigned int spaces, unsigned int *tlv, unsigned int tlv_size)
@ -594,6 +594,7 @@ static int show_selem(snd_mixer_t *handle, snd_mixer_selem_id_t *id, const char
long pvol, cvol;
int psw, csw;
int pmono, cmono, mono_ok = 0;
long db;
snd_mixer_elem_t *elem;
elem = snd_mixer_find_selem(handle, id);
@ -740,6 +741,11 @@ static int show_selem(snd_mixer_t *handle, snd_mixer_selem_id_t *id, const char
if (snd_mixer_selem_has_common_volume(elem)) {
snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_MONO, &pvol);
printf(" %s", get_percent(pvol, pmin, pmax));
if (!snd_mixer_selem_get_playback_dB(elem, SND_MIXER_SCHN_MONO, &db)) {
printf(" [");
print_dB(db);
printf("]");
}
}
if (snd_mixer_selem_has_common_switch(elem)) {
snd_mixer_selem_get_playback_switch(elem, SND_MIXER_SCHN_MONO, &psw);
@ -758,6 +764,11 @@ static int show_selem(snd_mixer_t *handle, snd_mixer_selem_id_t *id, const char
title = 1;
snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_MONO, &pvol);
printf(" %s", get_percent(pvol, pmin, pmax));
if (!snd_mixer_selem_get_playback_dB(elem, SND_MIXER_SCHN_MONO, &db)) {
printf(" [");
print_dB(db);
printf("]");
}
}
}
if (!snd_mixer_selem_has_common_switch(elem)) {
@ -781,6 +792,11 @@ static int show_selem(snd_mixer_t *handle, snd_mixer_selem_id_t *id, const char
title = 1;
snd_mixer_selem_get_capture_volume(elem, SND_MIXER_SCHN_MONO, &cvol);
printf(" %s", get_percent(cvol, cmin, cmax));
if (!snd_mixer_selem_get_capture_dB(elem, SND_MIXER_SCHN_MONO, &db)) {
printf(" [");
print_dB(db);
printf("]");
}
}
}
if (!snd_mixer_selem_has_common_switch(elem)) {
@ -803,6 +819,11 @@ static int show_selem(snd_mixer_t *handle, snd_mixer_selem_id_t *id, const char
if (!pmono && !cmono && snd_mixer_selem_has_common_volume(elem)) {
snd_mixer_selem_get_playback_volume(elem, chn, &pvol);
printf(" %s", get_percent(pvol, pmin, pmax));
if (!snd_mixer_selem_get_playback_dB(elem, chn, &db)) {
printf(" [");
print_dB(db);
printf("]");
}
}
if (!pmono && !cmono && snd_mixer_selem_has_common_switch(elem)) {
snd_mixer_selem_get_playback_switch(elem, chn, &psw);
@ -816,6 +837,11 @@ static int show_selem(snd_mixer_t *handle, snd_mixer_selem_id_t *id, const char
title = 1;
snd_mixer_selem_get_playback_volume(elem, chn, &pvol);
printf(" %s", get_percent(pvol, pmin, pmax));
if (!snd_mixer_selem_get_playback_dB(elem, chn, &db)) {
printf(" [");
print_dB(db);
printf("]");
}
}
}
if (!snd_mixer_selem_has_common_switch(elem)) {
@ -835,6 +861,11 @@ static int show_selem(snd_mixer_t *handle, snd_mixer_selem_id_t *id, const char
title = 1;
snd_mixer_selem_get_capture_volume(elem, chn, &cvol);
printf(" %s", get_percent(cvol, cmin, cmax));
if (!snd_mixer_selem_get_capture_dB(elem, chn, &db)) {
printf(" [");
print_dB(db);
printf("]");
}
}
}
if (!snd_mixer_selem_has_common_switch(elem)) {

6
amixer/go Normal file → Executable file
View file

@ -1,6 +1,6 @@
#!/bin/bash
ALSA_MIXER_SIMPLE_MODULES="$HOME/alsa/alsa-lib/src/mixer/simple/.libs" \
ALSA_MIXER_SIMPLE="$HOME/alsa/alsa-lib/src/conf/smixer.conf" \
LD_PRELOAD="$HOME/alsa/alsa-lib/src/.libs/libasound.so" \
ALSA_MIXER_SIMPLE_MODULES="$HOME/hg/alsa-lib/src/mixer/simple/.libs" \
ALSA_MIXER_SIMPLE="$HOME/hg/alsa-lib/src/conf/smixer.conf" \
LD_PRELOAD="$HOME/hg/alsa-lib/src/.libs/libasound.so" \
exec ./amixer "$@"