mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2025-12-17 08:56:49 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

acp: sync with pulseaudio

Browse source
This commit is contained in:
Wim Taymans 2022-07-07 12:23:28 +02:00
parent 752afa06a2
commit 57f0fdf746
7 changed files with 680 additions and 552 deletions
Download patch file Download diff file Expand all files Collapse all files

25
spa/plugins/alsa/acp/alsa-util.c
View file

@ -1626,20 +1626,29 @@ static int mixer_class_event(snd_mixer_class_t *class, unsigned int mask,
{
int err;
const char *name = snd_hctl_elem_get_name(helem);
// NOTE: The remove event defined as '~0U`.
/* NOTE: The remove event is defined as '~0U`. */
if (mask == SND_CTL_EVENT_MASK_REMOVE) {
// NOTE: unless remove pointer to melem from link-list at private_data of helem, hits
// assersion in alsa-lib since the list is not empty.
/* NOTE: Unless we remove the pointer to melem from the linked-list at
* private_data of helem, an assertion will be hit in alsa-lib since
* the list is not empty. */
snd_mixer_elem_detach(melem, helem);
} else if (mask & SND_CTL_EVENT_MASK_ADD) {
snd_ctl_elem_iface_t iface = snd_hctl_elem_get_interface(helem);
if (iface == SND_CTL_ELEM_IFACE_CARD || iface == SND_CTL_ELEM_IFACE_PCM) {
snd_mixer_t *mixer = snd_mixer_class_get_mixer(class);
snd_ctl_elem_iface_t iface = snd_hctl_elem_get_interface(helem);
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);
snd_mixer_elem_t *new_melem;
/* Put the hctl pointer as our private data - it will be useful for callbacks */
if ((err = snd_mixer_elem_new(&new_melem, SND_MIXER_ELEM_PULSEAUDIO, 0, helem, NULL)) < 0) {
pa_log_warn("snd_mixer_elem_new failed: %s", pa_alsa_strerror(err));
return 0;
new_melem = pa_alsa_mixer_find(mixer, iface, name, index, device);
if (!new_melem) {
/* Put the hctl pointer as our private data - it will be useful for callbacks */
if ((err = snd_mixer_elem_new(&new_melem, SND_MIXER_ELEM_PULSEAUDIO, 0, helem, NULL)) < 0) {
pa_log_warn("snd_mixer_elem_new failed: %s", pa_alsa_strerror(err));
return 0;
}
}
if ((err = snd_mixer_elem_attach(new_melem, helem)) < 0) {