Adding upstream version 0.3.65.upstream/0.3.65upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

9 files changed, 1426 insertions, 0 deletions

diff --git a/src/modules/spa/meson.build b/src/modules/spa/meson.build
new file mode 100644
index 0000000..8332910
--- /dev/null
+++ b/src/modules/spa/meson.build
@@ -0,0 +1,31 @@
+pipewire_module_spa_node = shared_library('pipewire-module-spa-node',
+  [ 'module-node.c', 'spa-node.c' ],
+  include_directories : [configinc],
+  install : true,
+  install_dir : modules_install_dir,
+  dependencies : [spa_dep, mathlib, dl_lib, pipewire_dep],
+)
+
+pipewire_module_spa_device = shared_library('pipewire-module-spa-device',
+  [ 'module-device.c', 'spa-device.c' ],
+  include_directories : [configinc],
+  install : true,
+  install_dir : modules_install_dir,
+  dependencies : [spa_dep, mathlib, dl_lib, pipewire_dep],
+)
+
+pipewire_module_spa_node_factory = shared_library('pipewire-module-spa-node-factory',
+  [ 'module-node-factory.c', 'spa-node.c' ],
+  include_directories : [configinc],
+  install : true,
+  install_dir : modules_install_dir,
+  dependencies : [spa_dep, mathlib, dl_lib, pipewire_dep],
+)
+
+pipewire_module_spa_device_factory = shared_library('pipewire-module-spa-device-factory',
+  [ 'module-device-factory.c', 'spa-device.c' ],
+  include_directories : [configinc],
+  install : true,
+  install_dir : modules_install_dir,
+  dependencies : [spa_dep, mathlib, dl_lib, pipewire_dep],
+)
diff --git a/src/modules/spa/module-device-factory.c b/src/modules/spa/module-device-factory.c
new file mode 100644
index 0000000..fd712a2
--- /dev/null
+++ b/src/modules/spa/module-device-factory.c
@@ -0,0 +1,281 @@
+/* PipeWire
+ *
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <dlfcn.h>
+
+#include "config.h"
+
+#include <spa/utils/result.h>
+
+#include "pipewire/impl.h"
+
+#include "spa-device.h"
+
+#define NAME "spa-device-factory"
+
+PW_LOG_TOPIC_STATIC(mod_topic, "mod." NAME);
+#define PW_LOG_TOPIC_DEFAULT mod_topic
+
+#define FACTORY_USAGE	SPA_KEY_FACTORY_NAME"=<factory-name> " \
+			"["SPA_KEY_LIBRARY_NAME"=<library-name>]"
+
+static const struct spa_dict_item module_props[] = {
+	{ PW_KEY_MODULE_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" },
+	{ PW_KEY_MODULE_DESCRIPTION, "Provide a factory to make SPA devices" },
+	{ PW_KEY_MODULE_VERSION, PACKAGE_VERSION },
+};
+
+struct factory_data {
+	struct pw_context *context;
+
+	struct pw_impl_module *module;
+	struct spa_hook module_listener;
+
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
+
+	struct spa_list device_list;
+};
+
+struct device_data {
+	struct spa_list link;
+	struct pw_impl_device *device;
+	struct spa_hook device_listener;
+	struct spa_hook resource_listener;
+};
+
+static void resource_destroy(void *data)
+{
+	struct device_data *nd = data;
+	pw_log_debug("device %p", nd);
+	spa_hook_remove(&nd->resource_listener);
+	if (nd->device)
+		pw_impl_device_destroy(nd->device);
+}
+
+static const struct pw_resource_events resource_events = {
+	PW_VERSION_RESOURCE_EVENTS,
+	.destroy = resource_destroy
+};
+
+static void device_destroy(void *data)
+{
+	struct device_data *nd = data;
+	spa_list_remove(&nd->link);
+	spa_hook_remove(&nd->device_listener);
+	nd->device = NULL;
+}
+
+static const struct pw_impl_device_events device_events = {
+	PW_VERSION_IMPL_DEVICE_EVENTS,
+	.destroy = device_destroy,
+};
+
+static void *create_object(void *_data,
+			   struct pw_resource *resource,
+			   const char *type,
+			   uint32_t version,
+			   struct pw_properties *properties,
+			   uint32_t new_id)
+{
+	struct factory_data *data = _data;
+	struct pw_context *context = data->context;
+	struct pw_impl_device *device;
+	const char *str;
+	char *factory_name = NULL;
+	struct device_data *nd;
+	struct pw_impl_client *client;
+	int res;
+
+	if (properties == NULL)
+		goto error_properties;
+
+	if ((str = pw_properties_get(properties, SPA_KEY_FACTORY_NAME)) == NULL)
+		goto error_properties;
+
+	if ((factory_name = strdup(str)) == NULL)
+		goto error_properties;
+
+	pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
+			pw_global_get_id(pw_impl_factory_get_global(data->factory)));
+
+	client = resource ? pw_resource_get_client(resource) : NULL;
+
+	if (client) {
+		pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d",
+			pw_global_get_id(pw_impl_client_get_global(client)));
+	}
+
+	device = pw_spa_device_load(context,
+				factory_name,
+				0,
+				properties,
+				sizeof(struct device_data));
+	if (device == NULL) {
+		res = -errno;
+		goto error_device;
+	}
+
+	nd = pw_spa_device_get_user_data(device);
+	nd->device = device;
+	spa_list_append(&data->device_list, &nd->link);
+
+	pw_impl_device_add_listener(device, &nd->device_listener, &device_events, nd);
+
+	if (client) {
+		struct pw_resource *bound_resource;
+
+		res = pw_global_bind(pw_impl_device_get_global(device),
+				client,
+				PW_PERM_ALL, version,
+				new_id);
+		if (res < 0)
+			goto error_bind;
+
+		if ((bound_resource = pw_impl_client_find_resource(client, new_id)) == NULL)
+			goto error_bind;
+
+		pw_resource_add_listener(bound_resource, &nd->resource_listener, &resource_events, nd);
+	}
+	free(factory_name);
+	return device;
+
+error_properties:
+	res = -EINVAL;
+	pw_resource_errorf_id(resource, new_id, res, "usage: "FACTORY_USAGE);
+	goto error_exit_cleanup;
+error_device:
+	pw_resource_errorf_id(resource, new_id, res,
+				"can't create device %s: %s", factory_name,
+				spa_strerror(res));
+	goto error_exit;
+error_bind:
+	pw_resource_errorf_id(resource, new_id, res, "can't bind device");
+	pw_impl_device_destroy(device);
+	goto error_exit;
+
+error_exit_cleanup:
+	pw_properties_free(properties);
+error_exit:
+	free(factory_name);
+	errno = -res;
+	return NULL;
+}
+
+static const struct pw_impl_factory_implementation factory_impl = {
+	PW_VERSION_IMPL_FACTORY_IMPLEMENTATION,
+	.create_object = create_object,
+};
+
+static void factory_destroy(void *data)
+{
+	struct factory_data *d = data;
+	struct device_data *nd;
+
+	spa_hook_remove(&d->factory_listener);
+
+	spa_list_consume(nd, &d->device_list, link)
+		pw_impl_device_destroy(nd->device);
+
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
+static void module_destroy(void *data)
+{
+	struct factory_data *d = data;
+
+	spa_hook_remove(&d->module_listener);
+	d->module = NULL;
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
+}
+
+static void module_registered(void *data)
+{
+	struct factory_data *d = data;
+	struct pw_impl_module *module = d->module;
+	struct pw_impl_factory *factory = d->factory;
+	struct spa_dict_item items[1];
+	char id[16];
+	int res;
+
+	snprintf(id, sizeof(id), "%d", pw_global_get_id(pw_impl_module_get_global(module)));
+	items[0] = SPA_DICT_ITEM_INIT(PW_KEY_MODULE_ID, id);
+	pw_impl_factory_update_properties(factory, &SPA_DICT_INIT(items, 1));
+
+	if ((res = pw_impl_factory_register(factory, NULL)) < 0) {
+		pw_log_error("%p: can't register factory: %s", factory, spa_strerror(res));
+	}
+}
+
+static const struct pw_impl_module_events module_events = {
+	PW_VERSION_IMPL_MODULE_EVENTS,
+	.destroy = module_destroy,
+	.registered = module_registered,
+};
+
+SPA_EXPORT
+int pipewire__module_init(struct pw_impl_module *module, const char *args)
+{
+	struct pw_context *context = pw_impl_module_get_context(module);
+	struct pw_impl_factory *factory;
+	struct factory_data *data;
+
+	PW_LOG_TOPIC_INIT(mod_topic);
+
+	factory = pw_context_create_factory(context,
+				 "spa-device-factory",
+				 PW_TYPE_INTERFACE_Device,
+				 PW_VERSION_DEVICE,
+				 NULL,
+				 sizeof(*data));
+	if (factory == NULL)
+		return -errno;
+
+	data = pw_impl_factory_get_user_data(factory);
+	data->factory = factory;
+	data->module = module;
+	data->context = context;
+	spa_list_init(&data->device_list);
+
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
+	pw_impl_factory_set_implementation(factory, &factory_impl, data);
+
+	pw_log_debug("module %p: new", module);
+	pw_impl_module_update_properties(module, &SPA_DICT_INIT_ARRAY(module_props));
+
+	pw_impl_module_add_listener(module, &data->module_listener, &module_events, data);
+
+	return 0;
+}
diff --git a/src/modules/spa/module-device.c b/src/modules/spa/module-device.c
new file mode 100644
index 0000000..7bd6821
--- /dev/null
+++ b/src/modules/spa/module-device.c
@@ -0,0 +1,127 @@
+/* PipeWire
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <errno.h>
+#include <getopt.h>
+#include <limits.h>
+
+#include <pipewire/impl.h>
+
+#include "spa-device.h"
+
+#define NAME "spa-device"
+
+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 device" },
+	{ PW_KEY_MODULE_USAGE, MODULE_USAGE },
+	{ PW_KEY_MODULE_VERSION, PACKAGE_VERSION },
+};
+
+struct device_data {
+	struct pw_impl_device *this;
+	struct pw_context *context;
+
+	struct spa_hook module_listener;
+};
+
+static void module_destroy(void *_data)
+{
+	struct device_data *data = _data;
+
+	spa_hook_remove(&data->module_listener);
+
+	pw_impl_device_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;
+	char **argv = NULL;
+	int n_tokens;
+	struct pw_context *context = pw_impl_module_get_context(module);
+	struct pw_impl_device *device;
+        struct device_data *data;
+	int res;
+
+	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) {
+			res = -errno;
+			goto error_exit_cleanup;
+		}
+	}
+
+	device = pw_spa_device_load(context,
+				argv[0],
+				0,
+				props,
+				sizeof(struct device_data));
+	if (device == NULL) {
+		res = -errno;
+		goto error_exit_cleanup;
+	}
+
+	pw_free_strv(argv);
+
+	data = pw_spa_device_get_user_data(device);
+	data->this = device;
+	data->context = context;
+
+	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:
+	res = -EINVAL;
+	pw_log_error("usage: module-spa-device " MODULE_USAGE);
+	goto error_exit_cleanup;
+error_exit_cleanup:
+	pw_free_strv(argv);
+	return res;
+}
diff --git a/src/modules/spa/module-node-factory.c b/src/modules/spa/module-node-factory.c
new file mode 100644
index 0000000..7fb2a42
--- /dev/null
+++ b/src/modules/spa/module-node-factory.c
@@ -0,0 +1,280 @@
+/* PipeWire
+ *
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <dlfcn.h>
+
+#include <spa/utils/result.h>
+
+#include "config.h"
+
+#include "pipewire/impl.h"
+
+#include "spa-node.h"
+
+#define NAME "spa-node-factory"
+
+PW_LOG_TOPIC_STATIC(mod_topic, "mod." NAME);
+#define PW_LOG_TOPIC_DEFAULT mod_topic
+
+#define FACTORY_USAGE	SPA_KEY_FACTORY_NAME"=<factory-name> " \
+			"["SPA_KEY_LIBRARY_NAME"=<library-name>]"
+
+static const struct spa_dict_item module_props[] = {
+	{ PW_KEY_MODULE_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" },
+	{ PW_KEY_MODULE_DESCRIPTION, "Provide a factory to make SPA nodes" },
+	{ PW_KEY_MODULE_VERSION, PACKAGE_VERSION },
+};
+
+struct factory_data {
+	struct pw_context *context;
+
+	struct pw_impl_module *module;
+	struct spa_hook module_listener;
+
+	struct pw_impl_factory *factory;
+	struct spa_hook factory_listener;
+
+	struct spa_list node_list;
+};
+
+struct node_data {
+	struct factory_data *data;
+	struct spa_list link;
+	struct pw_impl_node *node;
+	struct spa_hook node_listener;
+	struct pw_resource *resource;
+	struct spa_hook resource_listener;
+	unsigned int linger:1;
+};
+
+static void resource_destroy(void *data)
+{
+	struct node_data *nd = data;
+	pw_log_debug("node %p", nd);
+	spa_hook_remove(&nd->resource_listener);
+	nd->resource = NULL;
+	if (nd->node && !nd->linger)
+		pw_impl_node_destroy(nd->node);
+}
+
+static const struct pw_resource_events resource_events = {
+	PW_VERSION_RESOURCE_EVENTS,
+	.destroy = resource_destroy
+};
+
+static void node_destroy(void *data)
+{
+	struct node_data *nd = data;
+	pw_log_debug("node %p", nd);
+	spa_list_remove(&nd->link);
+	spa_hook_remove(&nd->node_listener);
+	nd->node = NULL;
+
+	if (nd->resource) {
+		spa_hook_remove(&nd->resource_listener);
+		nd->resource = NULL;
+	}
+}
+
+static const struct pw_impl_node_events node_events = {
+	PW_VERSION_IMPL_NODE_EVENTS,
+	.destroy = node_destroy,
+};
+
+static void *create_object(void *_data,
+			   struct pw_resource *resource,
+			   const char *type,
+			   uint32_t version,
+			   struct pw_properties *properties,
+			   uint32_t new_id)
+{
+	struct factory_data *data = _data;
+	struct pw_context *context = data->context;
+	struct pw_impl_node *node;
+	const char *factory_name;
+	struct node_data *nd;
+	int res;
+	struct pw_impl_client *client;
+	bool linger;
+
+	if (properties == NULL)
+		goto error_properties;
+
+	factory_name = pw_properties_get(properties, SPA_KEY_FACTORY_NAME);
+	if (factory_name == NULL)
+		goto error_properties;
+
+	pw_properties_setf(properties, PW_KEY_FACTORY_ID, "%d",
+			pw_global_get_id(pw_impl_factory_get_global(data->factory)));
+
+	linger = pw_properties_get_bool(properties, PW_KEY_OBJECT_LINGER, false);
+
+	client = resource ? pw_resource_get_client(resource) : NULL;
+	if (client && !linger) {
+		pw_properties_setf(properties, PW_KEY_CLIENT_ID, "%d",
+			pw_global_get_id(pw_impl_client_get_global(client)));
+	}
+	node = pw_spa_node_load(context,
+				factory_name,
+				PW_SPA_NODE_FLAG_ACTIVATE,
+				properties,
+				sizeof(struct node_data));
+	if (node == NULL)
+		goto error_create_node;
+
+	nd = pw_spa_node_get_user_data(node);
+	nd->data = data;
+	nd->node = node;
+	nd->linger = linger;
+	spa_list_append(&data->node_list, &nd->link);
+
+	pw_impl_node_add_listener(node, &nd->node_listener, &node_events, nd);
+
+	if (client) {
+		res = pw_global_bind(pw_impl_node_get_global(node),
+			       client, PW_PERM_ALL, version, new_id);
+		if (res < 0)
+			goto error_bind;
+
+		if ((nd->resource = pw_impl_client_find_resource(client, new_id)) == NULL)
+			goto error_bind;
+
+		pw_resource_add_listener(nd->resource, &nd->resource_listener, &resource_events, nd);
+	}
+	return node;
+
+error_properties:
+	res = -EINVAL;
+	pw_resource_errorf_id(resource, new_id, res, "usage: "FACTORY_USAGE);
+	goto error_exit_cleanup;
+error_create_node:
+	res = -errno;
+	pw_resource_errorf_id(resource, new_id, res,
+				"can't create node: %s", spa_strerror(res));
+	goto error_exit;
+error_bind:
+	pw_resource_errorf_id(resource, new_id, res, "can't bind node");
+	pw_impl_node_destroy(node);
+	goto error_exit;
+
+error_exit_cleanup:
+	pw_properties_free(properties);
+error_exit:
+	errno = -res;
+	return NULL;
+}
+
+static const struct pw_impl_factory_implementation factory_impl = {
+	PW_VERSION_IMPL_FACTORY_IMPLEMENTATION,
+	.create_object = create_object,
+};
+
+static void factory_destroy(void *data)
+{
+	struct factory_data *d = data;
+	struct node_data *nd;
+
+	spa_hook_remove(&d->factory_listener);
+	spa_list_consume(nd, &d->node_list, link)
+		pw_impl_node_destroy(nd->node);
+	d->factory = NULL;
+	if (d->module)
+		pw_impl_module_destroy(d->module);
+}
+
+static const struct pw_impl_factory_events factory_events = {
+	PW_VERSION_IMPL_FACTORY_EVENTS,
+	.destroy = factory_destroy,
+};
+
+static void module_destroy(void *data)
+{
+	struct factory_data *d = data;
+	spa_hook_remove(&d->module_listener);
+	d->module = NULL;
+	if (d->factory)
+		pw_impl_factory_destroy(d->factory);
+}
+
+static void module_registered(void *data)
+{
+	struct factory_data *d = data;
+	struct pw_impl_module *module = d->module;
+	struct pw_impl_factory *factory = d->factory;
+	struct spa_dict_item items[1];
+	char id[16];
+	int res;
+
+	snprintf(id, sizeof(id), "%d", pw_global_get_id(pw_impl_module_get_global(module)));
+	items[0] = SPA_DICT_ITEM_INIT(PW_KEY_MODULE_ID, id);
+	pw_impl_factory_update_properties(factory, &SPA_DICT_INIT(items, 1));
+
+	if ((res = pw_impl_factory_register(factory, NULL)) < 0) {
+		pw_log_error("%p: can't register factory: %s", factory, spa_strerror(res));
+	}
+}
+
+static const struct pw_impl_module_events module_events = {
+	PW_VERSION_IMPL_MODULE_EVENTS,
+	.destroy = module_destroy,
+	.registered = module_registered,
+};
+
+SPA_EXPORT
+int pipewire__module_init(struct pw_impl_module *module, const char *args)
+{
+	struct pw_context *context = pw_impl_module_get_context(module);
+	struct pw_impl_factory *factory;
+	struct factory_data *data;
+
+	PW_LOG_TOPIC_INIT(mod_topic);
+
+	factory = pw_context_create_factory(context,
+				 "spa-node-factory",
+				 PW_TYPE_INTERFACE_Node,
+				 PW_VERSION_NODE,
+				 NULL,
+				 sizeof(*data));
+	if (factory == NULL)
+		return -errno;
+
+	data = pw_impl_factory_get_user_data(factory);
+	data->factory = factory;
+	data->context = context;
+	data->module = module;
+	spa_list_init(&data->node_list);
+
+	pw_impl_factory_add_listener(factory, &data->factory_listener, &factory_events, data);
+	pw_impl_factory_set_implementation(factory, &factory_impl, data);
+
+	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;
+}
diff --git a/src/modules/spa/module-node.c b/src/modules/spa/module-node.c
new file mode 100644
index 0000000..9f66d2b
--- /dev/null
+++ b/src/modules/spa/module-node.c
@@ -0,0 +1,129 @@
+/* PipeWire
+ * Copyright © 2016 Axis Communications <dev-gstreamer@axis.com>
+ *	@author Linus Svensson <linus.svensson@axis.com>
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <errno.h>
+#include <getopt.h>
+#include <limits.h>
+
+#include <pipewire/impl.h>
+
+#include "spa-node.h"
+
+#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;
+	char **argv = NULL;
+	int n_tokens, res;
+	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) {
+			res = -errno;
+			goto error_exit_cleanup;
+		}
+	}
+
+	node = pw_spa_node_load(context,
+				argv[0],
+				PW_SPA_NODE_FLAG_ACTIVATE,
+				props,
+				sizeof(struct node_data));
+
+	if (node == NULL) {
+		res = -errno;
+		goto error_exit_cleanup;
+	}
+
+	pw_free_strv(argv);
+
+	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:
+	res = -EINVAL;
+	pw_log_error("usage: module-spa-node " MODULE_USAGE);
+	goto error_exit_cleanup;
+error_exit_cleanup:
+	pw_free_strv(argv);
+	return res;
+}
diff --git a/src/modules/spa/spa-device.c b/src/modules/spa/spa-device.c
new file mode 100644
index 0000000..936793b
--- /dev/null
+++ b/src/modules/spa/spa-device.c
@@ -0,0 +1,161 @@
+/* PipeWire
+ *
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <stdio.h>
+#include <dlfcn.h>
+
+#include <spa/utils/result.h>
+#include <spa/param/props.h>
+#include <spa/pod/iter.h>
+#include <spa/debug/types.h>
+
+#include "spa-device.h"
+
+struct impl {
+	struct pw_impl_device *this;
+
+	enum pw_spa_device_flags flags;
+
+	void *unload;
+        struct spa_handle *handle;
+        struct spa_device *device;
+
+	struct spa_hook device_listener;
+
+	void *user_data;
+};
+
+static void device_free(void *data)
+{
+	struct impl *impl = data;
+	struct pw_impl_device *device = impl->this;
+
+	pw_log_debug("spa-device %p: free", device);
+
+	spa_hook_remove(&impl->device_listener);
+	if (impl->handle)
+		pw_unload_spa_handle(impl->handle);
+}
+
+static const struct pw_impl_device_events device_events = {
+	PW_VERSION_IMPL_DEVICE_EVENTS,
+	.free = device_free,
+};
+
+struct pw_impl_device *
+pw_spa_device_new(struct pw_context *context,
+		  enum pw_spa_device_flags flags,
+		  struct spa_device *device,
+		  struct spa_handle *handle,
+		  struct pw_properties *properties,
+		  size_t user_data_size)
+{
+	struct pw_impl_device *this;
+	struct impl *impl;
+	int res;
+
+	this = pw_context_create_device(context, properties, sizeof(struct impl) + user_data_size);
+	if (this == NULL)
+		return NULL;
+
+	impl = pw_impl_device_get_user_data(this);
+	impl->this = this;
+	impl->device = device;
+	impl->handle = handle;
+	impl->flags = flags;
+
+	if (user_data_size > 0)
+                impl->user_data = SPA_PTROFF(impl, sizeof(struct impl), void);
+
+	pw_impl_device_add_listener(this, &impl->device_listener, &device_events, impl);
+	pw_impl_device_set_implementation(this, impl->device);
+
+	if (!SPA_FLAG_IS_SET(impl->flags, PW_SPA_DEVICE_FLAG_NO_REGISTER)) {
+		if ((res = pw_impl_device_register(this, NULL)) < 0)
+			goto error_register;
+	}
+	return this;
+
+error_register:
+	pw_impl_device_destroy(this);
+	errno = -res;
+	return NULL;
+}
+
+void *pw_spa_device_get_user_data(struct pw_impl_device *device)
+{
+	struct impl *impl = pw_impl_device_get_user_data(device);
+	return impl->user_data;
+}
+
+struct pw_impl_device *pw_spa_device_load(struct pw_context *context,
+				 const char *factory_name,
+				 enum pw_spa_device_flags flags,
+				 struct pw_properties *properties,
+				 size_t user_data_size)
+{
+	struct pw_impl_device *this;
+	struct spa_handle *handle;
+	void *iface;
+	int res;
+
+	handle = pw_context_load_spa_handle(context, factory_name,
+			properties ? &properties->dict : NULL);
+	if (handle == NULL)
+		goto error_load;
+
+	if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_Device, &iface)) < 0)
+		goto error_interface;
+
+	this = pw_spa_device_new(context, flags,
+			       iface, handle, properties, user_data_size);
+	if (this == NULL)
+		goto error_device;
+
+	return this;
+
+error_load:
+	res = -errno;
+	pw_log_debug("can't load device handle %s: %m", factory_name);
+	goto error_exit;
+error_interface:
+	pw_log_debug("can't get device interface %s: %s", factory_name,
+			spa_strerror(res));
+	goto error_exit_unload;
+error_device:
+	properties = NULL;
+	res = -errno;
+	pw_log_debug("can't create device %s: %m", factory_name);
+	goto error_exit_unload;
+
+error_exit_unload:
+	pw_unload_spa_handle(handle);
+error_exit:
+	errno = -res;
+	pw_properties_free(properties);
+	return NULL;
+}
diff --git a/src/modules/spa/spa-device.h b/src/modules/spa/spa-device.h
new file mode 100644
index 0000000..2d23b6f
--- /dev/null
+++ b/src/modules/spa/spa-device.h
@@ -0,0 +1,62 @@
+/* PipeWire
+ *
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef PIPEWIRE_SPA_DEVICE_H
+#define PIPEWIRE_SPA_DEVICE_H
+
+#include <spa/monitor/device.h>
+
+#include <pipewire/impl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum pw_spa_device_flags {
+	PW_SPA_DEVICE_FLAG_DISABLE	= (1 << 0),
+	PW_SPA_DEVICE_FLAG_NO_REGISTER	= (1 << 1),
+};
+
+struct pw_impl_device *
+pw_spa_device_new(struct pw_context *context,
+		  enum pw_spa_device_flags flags,
+		  struct spa_device *device,
+		  struct spa_handle *handle,
+		  struct pw_properties *properties,
+		  size_t user_data_size);
+
+struct pw_impl_device *
+pw_spa_device_load(struct pw_context *context,
+		   const char *factory_name,
+		   enum pw_spa_device_flags flags,
+		   struct pw_properties *properties,
+		   size_t user_data_size);
+
+void *pw_spa_device_get_user_data(struct pw_impl_device *device);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PIPEWIRE_SPA_DEVICE_H */
diff --git a/src/modules/spa/spa-node.c b/src/modules/spa/spa-node.c
new file mode 100644
index 0000000..1f8615b
--- /dev/null
+++ b/src/modules/spa/spa-node.c
@@ -0,0 +1,292 @@
+/* PipeWire
+ *
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <stdio.h>
+#include <dlfcn.h>
+
+#include <spa/node/node.h>
+#include <spa/node/utils.h>
+#include <spa/utils/result.h>
+#include <spa/param/props.h>
+#include <spa/pod/iter.h>
+#include <spa/debug/types.h>
+
+#include "spa-node.h"
+
+struct impl {
+	struct pw_impl_node *this;
+
+	enum pw_spa_node_flags flags;
+
+	struct spa_handle *handle;
+	struct spa_node *node;          /**< handle to SPA node */
+
+	struct spa_hook node_listener;
+	int init_pending;
+
+	void *user_data;
+
+	unsigned int async_init:1;
+};
+
+static void spa_node_free(void *data)
+{
+	struct impl *impl = data;
+	struct pw_impl_node *node = impl->this;
+
+	pw_log_debug("spa-node %p: free", node);
+
+	spa_hook_remove(&impl->node_listener);
+	if (impl->handle)
+		pw_unload_spa_handle(impl->handle);
+}
+
+static void complete_init(struct impl *impl)
+{
+        struct pw_impl_node *this = impl->this;
+
+	impl->init_pending = SPA_ID_INVALID;
+
+	if (SPA_FLAG_IS_SET(impl->flags, PW_SPA_NODE_FLAG_ACTIVATE))
+		pw_impl_node_set_active(this, true);
+
+	if (!SPA_FLAG_IS_SET(impl->flags, PW_SPA_NODE_FLAG_NO_REGISTER))
+		pw_impl_node_register(this, NULL);
+	else
+		pw_impl_node_initialized(this);
+}
+
+static void spa_node_result(void *data, int seq, int res, uint32_t type, const void *result)
+{
+	struct impl *impl = data;
+	struct pw_impl_node *node = impl->this;
+
+	if (seq == impl->init_pending) {
+		pw_log_debug("spa-node %p: init complete event %d %d", node, seq, res);
+		complete_init(impl);
+	}
+}
+
+static const struct pw_impl_node_events node_events = {
+	PW_VERSION_IMPL_NODE_EVENTS,
+	.free = spa_node_free,
+	.result = spa_node_result,
+};
+
+struct pw_impl_node *
+pw_spa_node_new(struct pw_context *context,
+		enum pw_spa_node_flags flags,
+		struct spa_node *node,
+		struct spa_handle *handle,
+		struct pw_properties *properties,
+		size_t user_data_size)
+{
+	struct pw_impl_node *this;
+	struct impl *impl;
+	int res;
+
+	this = pw_context_create_node(context, properties, sizeof(struct impl) + user_data_size);
+	if (this == NULL) {
+		res = -errno;
+		goto error_exit;
+	}
+
+	impl = pw_impl_node_get_user_data(this);
+	impl->this = this;
+	impl->node = node;
+	impl->handle = handle;
+	impl->flags = flags;
+
+	if (user_data_size > 0)
+                impl->user_data = SPA_PTROFF(impl, sizeof(struct impl), void);
+
+	pw_impl_node_add_listener(this, &impl->node_listener, &node_events, impl);
+	if ((res = pw_impl_node_set_implementation(this, impl->node)) < 0)
+		goto error_exit_clean_node;
+
+	if (flags & PW_SPA_NODE_FLAG_ASYNC) {
+		impl->init_pending = spa_node_sync(impl->node, res);
+	} else {
+		complete_init(impl);
+	}
+	return this;
+
+error_exit_clean_node:
+	pw_impl_node_destroy(this);
+	handle = NULL;
+error_exit:
+	if (handle)
+		pw_unload_spa_handle(handle);
+	errno = -res;
+	return NULL;
+
+}
+
+void *pw_spa_node_get_user_data(struct pw_impl_node *node)
+{
+	struct impl *impl = pw_impl_node_get_user_data(node);
+	return impl->user_data;
+}
+
+static int
+setup_props(struct pw_context *context, struct spa_node *spa_node, struct pw_properties *pw_props)
+{
+	int res;
+	struct spa_pod *props;
+	void *state = NULL;
+	const char *key;
+	uint32_t index = 0;
+	uint8_t buf[4096];
+	struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buf, sizeof(buf));
+	const struct spa_pod_prop *prop = NULL;
+
+	res = spa_node_enum_params_sync(spa_node,
+					SPA_PARAM_Props, &index, NULL, &props,
+					&b);
+	if (res != 1) {
+		if (res < 0)
+			pw_log_debug("spa_node_get_props result: %s", spa_strerror(res));
+		if (res == -ENOTSUP || res == -ENOENT)
+			res = 0;
+		return res;
+	}
+
+	while ((key = pw_properties_iterate(pw_props, &state))) {
+		uint32_t type = 0;
+
+		type = spa_debug_type_find_type(spa_type_props, key);
+		if (type == SPA_TYPE_None)
+			continue;
+
+		if ((prop = spa_pod_find_prop(props, prop, type))) {
+			const char *value = pw_properties_get(pw_props, key);
+
+			if (value == NULL)
+				continue;
+
+			pw_log_debug("configure prop %s to %s", key, value);
+
+			switch(prop->value.type) {
+			case SPA_TYPE_Bool:
+				SPA_POD_VALUE(struct spa_pod_bool, &prop->value) =
+					pw_properties_parse_bool(value);
+				break;
+			case SPA_TYPE_Id:
+				SPA_POD_VALUE(struct spa_pod_id, &prop->value) =
+					pw_properties_parse_int(value);
+				break;
+			case SPA_TYPE_Int:
+				SPA_POD_VALUE(struct spa_pod_int, &prop->value) =
+					pw_properties_parse_int(value);
+				break;
+			case SPA_TYPE_Long:
+				SPA_POD_VALUE(struct spa_pod_long, &prop->value) =
+					pw_properties_parse_int64(value);
+				break;
+			case SPA_TYPE_Float:
+				SPA_POD_VALUE(struct spa_pod_float, &prop->value) =
+					pw_properties_parse_float(value);
+				break;
+			case SPA_TYPE_Double:
+				SPA_POD_VALUE(struct spa_pod_double, &prop->value) =
+					pw_properties_parse_double(value);
+				break;
+			case SPA_TYPE_String:
+				break;
+			default:
+				break;
+			}
+		}
+	}
+
+	if ((res = spa_node_set_param(spa_node, SPA_PARAM_Props, 0, props)) < 0) {
+		pw_log_debug("spa_node_set_props failed: %s", spa_strerror(res));
+		return res;
+	}
+	return 0;
+}
+
+
+struct pw_impl_node *pw_spa_node_load(struct pw_context *context,
+				 const char *factory_name,
+				 enum pw_spa_node_flags flags,
+				 struct pw_properties *properties,
+				 size_t user_data_size)
+{
+	struct pw_impl_node *this;
+	struct spa_node *spa_node;
+	int res;
+	struct spa_handle *handle;
+	void *iface;
+	const struct pw_properties *p;
+
+	if (properties) {
+		p = pw_context_get_properties(context);
+		pw_properties_set(properties, "clock.quantum-limit",
+				pw_properties_get(p, "default.clock.quantum-limit"));
+	}
+
+	handle = pw_context_load_spa_handle(context,
+			factory_name,
+			properties ? &properties->dict : NULL);
+	if (handle == NULL) {
+		res = -errno;
+		goto error_exit;
+	}
+
+	if ((res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_Node, &iface)) < 0) {
+		pw_log_error("can't get node interface %d", res);
+		goto error_exit_unload;
+	}
+	if (SPA_RESULT_IS_ASYNC(res))
+		flags |= PW_SPA_NODE_FLAG_ASYNC;
+
+	spa_node = iface;
+
+	if (properties != NULL) {
+		if ((res = setup_props(context, spa_node, properties)) < 0) {
+			pw_log_warn("can't setup properties: %s", spa_strerror(res));
+		}
+	}
+
+	this = pw_spa_node_new(context, flags,
+			       spa_node, handle, properties, user_data_size);
+	if (this == NULL) {
+		res = -errno;
+		properties = NULL;
+		goto error_exit_unload;
+	}
+
+	return this;
+
+error_exit_unload:
+	pw_unload_spa_handle(handle);
+error_exit:
+	pw_properties_free(properties);
+	errno = -res;
+	return NULL;
+}
diff --git a/src/modules/spa/spa-node.h b/src/modules/spa/spa-node.h
new file mode 100644
index 0000000..5289a17
--- /dev/null
+++ b/src/modules/spa/spa-node.h
@@ -0,0 +1,63 @@
+/* PipeWire
+ *
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef PIPEWIRE_SPA_NODE_H
+#define PIPEWIRE_SPA_NODE_H
+
+#include <spa/node/node.h>
+
+#include <pipewire/impl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum pw_spa_node_flags {
+	PW_SPA_NODE_FLAG_ACTIVATE	= (1 << 0),
+	PW_SPA_NODE_FLAG_NO_REGISTER	= (1 << 1),
+	PW_SPA_NODE_FLAG_ASYNC		= (1 << 2),
+};
+
+struct pw_impl_node *
+pw_spa_node_new(struct pw_context *context,
+		enum pw_spa_node_flags flags,
+		struct spa_node *node,
+		struct spa_handle *handle,
+		struct pw_properties *properties,
+		size_t user_data_size);
+
+struct pw_impl_node *
+pw_spa_node_load(struct pw_context *context,
+		 const char *factory_name,
+		 enum pw_spa_node_flags flags,
+		 struct pw_properties *properties,
+		 size_t user_data_size);
+
+void *pw_spa_node_get_user_data(struct pw_impl_node *node);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PIPEWIRE_SPA_NODE_H */