libobs: Add ability to create private services

This is a band-aid solution to be able to create temporary services
without logging them and keep them out of enumeration functions.

This is a band-aid solution -- 'master obs context lists' should not be
kept by the core.  Logging of object creation/destruction should also be
controlled by the front-end instead of the core.

libobs/obs-service.c

@@ -33,8 +33,9 @@ const char *obs_service_get_display_name(const char *id)
 	return (info != NULL) ? info->get_name(info->type_data) : NULL;
 }
 
-obs_service_t *obs_service_create(const char *id, const char *name,
-		obs_data_t *settings, obs_data_t *hotkey_data)
+static obs_service_t *obs_service_create_internal(const char *id,
+		const char *name, obs_data_t *settings, obs_data_t *hotkey_data,
+		bool private)
 {
 	const struct obs_service_info *info = find_service(id);
 	struct obs_service *service;
@@ -47,7 +48,7 @@ obs_service_t *obs_service_create(const char *id, const char *name,
 	service = bzalloc(sizeof(struct obs_service));
 
 	if (!obs_context_data_init(&service->context, OBS_OBJ_TYPE_SERVICE,
-				settings, name, hotkey_data, false)) {
+				settings, name, hotkey_data, private)) {
 		bfree(service);
 		return NULL;
 	}
@@ -74,10 +75,24 @@ obs_service_t *obs_service_create(const char *id, const char *name,
 			&obs->data.services_mutex,
 			&obs->data.first_service);
 
-	blog(LOG_INFO, "service '%s' (%s) created", name, id);
+	blog(private ? LOG_DEBUG : LOG_INFO, "service '%s' (%s) created",
+			name, id);
 	return service;
 }
 
+obs_service_t *obs_service_create(const char *id,
+		const char *name, obs_data_t *settings, obs_data_t *hotkey_data)
+{
+	return obs_service_create_internal(id, name, settings, hotkey_data,
+			false);
+}
+
+obs_service_t *obs_service_create_private(const char *id,
+		const char *name, obs_data_t *settings)
+{
+	return obs_service_create_internal(id, name, settings, NULL, true);
+}
+
 static void actually_destroy_service(struct obs_service *service)
 {
 	if (service->context.data)
@@ -86,7 +101,8 @@ static void actually_destroy_service(struct obs_service *service)
 	if (service->output)
 		service->output->service = NULL;
 
-	blog(LOG_INFO, "service '%s' destroyed", service->context.name);
+	blog(service->context.private ? LOG_DEBUG : LOG_INFO,
+			"service '%s' destroyed", service->context.name);
 
 	obs_context_data_free(&service->context);
 	if (service->owns_info_id)

libobs/obs.h

@@ -1648,6 +1648,9 @@ EXPORT const char *obs_service_get_display_name(const char *id);
 EXPORT obs_service_t *obs_service_create(const char *id, const char *name,
 		obs_data_t *settings, obs_data_t *hotkey_data);
 
+EXPORT obs_service_t *obs_service_create_private(const char *id,
+		const char *name, obs_data_t *settings);
+
 /**
  * Adds/releases a reference to a service.  When the last reference is
  * released, the service is destroyed.