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Added range specification to simple mixer. Fixes to alsamixer. Added mixer support to alsa-oss

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This commit is contained in:
Abramo Bagnara 2001-02-18 17:56:37 +00:00
parent ab819d2edd
commit 0c7637393f
4 changed files with 62 additions and 7 deletions
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57
src/mixer/simple.c
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@ -75,6 +75,7 @@ typedef struct _selem {
unsigned int capture_group;
unsigned int caps;
struct {
unsigned int range: 1; /* Forced range */
long min, max;
unsigned int channels;
long vol[32];
@ -593,11 +594,15 @@ static int simple_update(snd_mixer_elem_t *melem)
}
simple->caps = caps;
simple->str[PLAY].channels = pchannels;
simple->str[PLAY].min = pmin;
simple->str[PLAY].max = pmax;
if (!simple->str[PLAY].range) {
simple->str[PLAY].min = pmin;
simple->str[PLAY].max = pmax;
}
simple->str[CAPT].channels = cchannels;
simple->str[CAPT].min = cmin;
simple->str[CAPT].max = cmax;
if (!simple->str[CAPT].range) {
simple->str[CAPT].min = cmin;
simple->str[CAPT].max = cmax;
}
return 0;
}
@ -900,6 +905,24 @@ void snd_mixer_selem_get_id(snd_mixer_elem_t *elem,
*id = s->id;
}
const char *snd_mixer_selem_get_name(snd_mixer_elem_t *elem)
{
selem_t *s;
assert(elem);
assert(elem->type == SND_MIXER_ELEM_SIMPLE);
s = elem->private_data;
return s->id.name;
}
unsigned int snd_mixer_selem_get_index(snd_mixer_elem_t *elem)
{
selem_t *s;
assert(elem);
assert(elem->type == SND_MIXER_ELEM_SIMPLE);
s = elem->private_data;
return s->id.index;
}
int snd_mixer_selem_is_playback_mono(snd_mixer_elem_t *elem)
{
selem_t *s;
@ -1367,3 +1390,29 @@ const char *snd_mixer_selem_channel_name(snd_mixer_selem_channel_id_t channel)
return p;
}
void snd_mixer_selem_set_playback_volume_range(snd_mixer_elem_t *elem,
long min, long max)
{
selem_t *s;
assert(elem);
assert(elem->type == SND_MIXER_ELEM_SIMPLE);
s = elem->private_data;
assert(min != max);
s->str[PLAY].range = 1;
s->str[PLAY].min = min;
s->str[PLAY].max = max;
}
void snd_mixer_selem_set_capture_volume_range(snd_mixer_elem_t *elem,
long min, long max)
{
selem_t *s;
assert(elem);
assert(elem->type == SND_MIXER_ELEM_SIMPLE);
s = elem->private_data;
assert(min != max);
s->str[CAPT].range = 1;
s->str[CAPT].min = min;
s->str[CAPT].max = max;
}