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m-mixer-api: make sure the enum param iterator is valid

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Some audio nodes such as null-audio-sink nodes don't support Props or Route enum
params.
This commit is contained in:
Julian Bouzas 2021-05-19 18:26:17 -04:00
parent 188a10e0e7
commit fc41af5c98
1 changed files with 2 additions and 2 deletions
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4
modules/module-mixer-api.c
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@ -191,7 +191,7 @@ collect_node_info (WpMixerApi * self, struct node_info *info,
g_auto (GValue) val = G_VALUE_INIT;
it = wp_pipewire_object_enum_params_sync (dev, "Route", NULL);
for (; wp_iterator_next (it, &val); g_value_unset (&val)) {
for (; it && wp_iterator_next (it, &val); g_value_unset (&val)) {
WpSpaPod *param = g_value_get_boxed (&val);
gint32 r_index = -1, r_device = -1;
g_autoptr (WpSpaPod) props = NULL;
@ -220,7 +220,7 @@ collect_node_info (WpMixerApi * self, struct node_info *info,
g_auto (GValue) val = G_VALUE_INIT;
it = wp_pipewire_object_enum_params_sync (node, "Props", NULL);
for (; wp_iterator_next (it, &val); g_value_unset (&val)) {
for (; it && wp_iterator_next (it, &val); g_value_unset (&val)) {
WpSpaPod *param = g_value_get_boxed (&val);
if (node_info_fill (info, param))
break;