mirrors/pulseaudio
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git synced 2025-11-03 09:01:50 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

alsa-mixer: extend pa_alsa_mixer_find with the subdevice check

Browse source 
The full identifier check must be executed for the new melem
creation, otherwise the duplicate control element code check
is reached.

Example (using the snd-aloop driver):

numid=56,iface=PCM,name='PCM Notify',device=1,subdevice=1
numid=62,iface=PCM,name='PCM Notify',device=1,subdevice=2

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/730>
This commit is contained in:
Jaroslav Kysela 2022-06-29 11:23:20 +02:00 • committed by PulseAudio Marge Bot
parent d1675df0cd
commit 81a051089f
1 changed files with 8 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/modules/alsa/alsa-util.c
View file

@ -1614,7 +1614,8 @@ static snd_mixer_elem_t *pa_alsa_mixer_find(snd_mixer_t *mixer,
snd_ctl_elem_iface_t iface,
const char *name,
unsigned int index,
unsigned int device) {
unsigned int device,
unsigned int subdevice) {
snd_mixer_elem_t *elem;
for (elem = snd_mixer_first_elem(mixer); elem; elem = snd_mixer_elem_next(elem)) {
@ -1631,17 +1632,19 @@ static snd_mixer_elem_t *pa_alsa_mixer_find(snd_mixer_t *mixer,
continue;
if (snd_hctl_elem_get_device(helem) != device)
continue;
if (snd_hctl_elem_get_subdevice(helem) != subdevice)
continue;
return elem;
}
return NULL;
}
snd_mixer_elem_t *pa_alsa_mixer_find_card(snd_mixer_t *mixer, struct pa_alsa_mixer_id *alsa_id, unsigned int device) {
return pa_alsa_mixer_find(mixer, SND_CTL_ELEM_IFACE_CARD, alsa_id->name, alsa_id->index, device);
return pa_alsa_mixer_find(mixer, SND_CTL_ELEM_IFACE_CARD, alsa_id->name, alsa_id->index, device, 0);
}
snd_mixer_elem_t *pa_alsa_mixer_find_pcm(snd_mixer_t *mixer, const char *name, unsigned int device) {
return pa_alsa_mixer_find(mixer, SND_CTL_ELEM_IFACE_PCM, name, 0, device);
return pa_alsa_mixer_find(mixer, SND_CTL_ELEM_IFACE_PCM, name, 0, device, 0);
}
static int mixer_class_compare(const snd_mixer_elem_t *c1, const snd_mixer_elem_t *c2)
@ -1679,10 +1682,11 @@ static int mixer_class_event(snd_mixer_class_t *class, unsigned int mask,
const char *name = snd_hctl_elem_get_name(helem);
const int index = snd_hctl_elem_get_index(helem);
const int device = snd_hctl_elem_get_device(helem);
const int subdevice = snd_hctl_elem_get_subdevice(helem);
snd_mixer_elem_t *new_melem;
bool found = true;
new_melem = pa_alsa_mixer_find(mixer, iface, name, index, device);
new_melem = pa_alsa_mixer_find(mixer, iface, name, index, device, subdevice);
if (!new_melem) {
_helem = pa_xmalloc(sizeof(snd_hctl_elem_t *));
*_helem = helem;