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context: list audio devices as cards

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Find the sink/source a stream is linked to
This commit is contained in:
Wim Taymans 2018-11-28 11:13:21 +01:00
parent e8dfd22a6b
commit 08d6071693
4 changed files with 126 additions and 39 deletions
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42
src/context.c
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@ -96,11 +96,53 @@ struct global *pa_context_find_global(pa_context *c, uint32_t id)
return NULL;
}
struct global *pa_context_find_linked(pa_context *c, uint32_t idx)
{
struct global *g, *f;
spa_list_for_each(g, &c->globals, link) {
if (g->type != PW_TYPE_INTERFACE_Link)
continue;
pw_log_debug("%d %d %d", idx,
g->link_info.src->parent_id,
g->link_info.dst->parent_id);
if (g->link_info.src->parent_id == idx)
f = pa_context_find_global(c, g->link_info.dst->parent_id);
else if (g->link_info.dst->parent_id == idx)
f = pa_context_find_global(c, g->link_info.src->parent_id);
else
continue;
if (f == NULL)
continue;
if (f->mask & PA_SUBSCRIPTION_MASK_DSP) {
f = f->dsp_info.session;
}
return f;
}
return NULL;
}
static int set_mask(pa_context *c, struct global *g)
{
const char *str;
switch (g->type) {
case PW_TYPE_INTERFACE_Device:
if (g->props == NULL)
return 0;
if ((str = pw_properties_get(g->props, "media.class")) == NULL)
return 0;
if (strcmp(str, "Audio/Device") != 0)
return 0;
pw_log_debug("found card %d", g->id);
g->mask = PA_SUBSCRIPTION_MASK_CARD;
g->event = PA_SUBSCRIPTION_EVENT_CARD;
break;
case PW_TYPE_INTERFACE_Node:
if (g->props == NULL)
return 0;