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modules: parse and set control values

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This commit is contained in:
Wim Taymans 2021-05-01 07:37:48 +02:00
parent 0a966d4637
commit 3272344df4
1 changed files with 27 additions and 2 deletions
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29
src/modules/module-ladspa-filter.c
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@ -193,6 +193,7 @@ static void set_control_value(struct impl *impl, const char *name, float value)
for (i = 0; i < impl->n_control; i++) { for (i = 0; i < impl->n_control; i++) {
uint32_t p = impl->control[i]; uint32_t p = impl->control[i];
if (strcmp(impl->desc->PortNames[p], name) == 0) { if (strcmp(impl->desc->PortNames[p], name) == 0) {
pw_log_info("set '%s' to %f", name, value);
impl->control_data[i] = value; impl->control_data[i] = value;
return; return;
} }
@ -202,8 +203,32 @@ static void set_control_value(struct impl *impl, const char *name, float value)
static void param_changed(void *data, uint32_t id, const struct spa_pod *param) static void param_changed(void *data, uint32_t id, const struct spa_pod *param)
{ {
struct impl *impl = data; struct impl *impl = data;
pw_log_info("%p: %d changed", impl, id); const struct spa_pod_prop *prop;
spa_debug_pod(0, NULL, param); struct spa_pod_parser prs;
struct spa_pod_frame f;
if (id != SPA_PARAM_Props)
return;
if ((prop = spa_pod_find_prop(param, NULL, SPA_PROP_paramStruct)) == NULL ||
!spa_pod_is_struct(&prop->value))
return;
spa_pod_parser_pod(&prs, &prop->value);
if (spa_pod_parser_push_struct(&prs, &f) < 0)
return;
while (true) {
const char *name;
float value;
if (spa_pod_parser_get_string(&prs, &name) < 0)
break;
if (spa_pod_parser_get_float(&prs, &value) < 0)
break;
set_control_value(impl, name, value);
}
} }
static const struct pw_stream_events in_stream_events = { static const struct pw_stream_events in_stream_events = {