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-rw-r--r--src/modules/spa/meson.build31
-rw-r--r--src/modules/spa/module-device-factory.c281
-rw-r--r--src/modules/spa/module-device.c127
-rw-r--r--src/modules/spa/module-node-factory.c280
-rw-r--r--src/modules/spa/module-node.c129
-rw-r--r--src/modules/spa/spa-device.c161
-rw-r--r--src/modules/spa/spa-device.h62
-rw-r--r--src/modules/spa/spa-node.c292
-rw-r--r--src/modules/spa/spa-node.h63
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 */