doc: move modules around to add to docs

src/modules/module-spa-node.c

@@ -0,0 +1,104 @@
+/* PipeWire */
+/* SPDX-FileCopyrightText: Copyright © 2016 Axis Communications <dev-gstreamer@axis.com> */
+/*                         @author Linus Svensson <linus.svensson@axis.com> */
+/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
+/* SPDX-License-Identifier: MIT */
+
+#include "config.h"
+
+#include <errno.h>
+#include <getopt.h>
+#include <limits.h>
+
+#include <pipewire/impl.h>
+
+#include "spa/spa-node.h"
+
+/** \page page_module_spa_node SPA Node
+ *
+ * Load and manage an SPA node.
+ */
+#define NAME "spa-node"
+
+PW_LOG_TOPIC_STATIC(mod_topic, "mod." NAME);
+#define PW_LOG_TOPIC_DEFAULT mod_topic
+
+#define MODULE_USAGE	"<factory> [key=value ...]"
+
+static const struct spa_dict_item module_props[] = {
+	{ PW_KEY_MODULE_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" },
+	{ PW_KEY_MODULE_DESCRIPTION, "Load and manage an SPA node" },
+	{ PW_KEY_MODULE_USAGE, MODULE_USAGE },
+	{ PW_KEY_MODULE_VERSION, PACKAGE_VERSION },
+};
+
+struct node_data {
+	struct pw_impl_node *this;
+	struct pw_context *context;
+	struct pw_properties *properties;
+
+	struct spa_hook module_listener;
+};
+
+static void module_destroy(void *_data)
+{
+	struct node_data *data = _data;
+	spa_hook_remove(&data->module_listener);
+	pw_impl_node_destroy(data->this);
+}
+
+static const struct pw_impl_module_events module_events = {
+	PW_VERSION_IMPL_MODULE_EVENTS,
+	.destroy = module_destroy,
+};
+
+SPA_EXPORT
+int pipewire__module_init(struct pw_impl_module *module, const char *args)
+{
+	struct pw_properties *props = NULL;
+	spa_auto(pw_strv) argv = NULL;
+	int n_tokens;
+	struct pw_context *context = pw_impl_module_get_context(module);
+	struct pw_impl_node *node;
+        struct node_data *data;
+
+	PW_LOG_TOPIC_INIT(mod_topic);
+
+	if (args == NULL)
+		goto error_arguments;
+
+	argv = pw_split_strv(args, " \t", 2, &n_tokens);
+	if (n_tokens < 1)
+		goto error_arguments;
+
+	if (n_tokens == 2) {
+		props = pw_properties_new_string(argv[1]);
+		if (props == NULL)
+			return -errno;
+	}
+
+	node = pw_spa_node_load(context,
+				argv[0],
+				PW_SPA_NODE_FLAG_ACTIVATE,
+				props,
+				sizeof(struct node_data));
+
+	if (node == NULL)
+		return -errno;
+
+	data = pw_spa_node_get_user_data(node);
+	data->this = node;
+	data->context = context;
+	data->properties = props;
+
+	pw_log_debug("module %p: new", module);
+	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
+
+	pw_impl_module_update_properties(module, &SPA_DICT_INIT_ARRAY(module_props));
+
+	return 0;
+
+error_arguments:
+	pw_log_error("usage: module-spa-node " MODULE_USAGE);
+	return -EINVAL;
+}