mirror of
https://gitlab.freedesktop.org/pipewire/wireplumber.git
synced 2026-05-17 20:48:10 +02:00
module-pw-alsa-udev: start the alsa monitor and create the alsa nodes
This commit is contained in:
Julian Bouzas
parent
f5a51c6a81
commit
8d58243fa6
2 changed files with 336 additions and 2 deletions
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@ -23,6 +23,22 @@ void simple_endpoint_link_factory (WpFactory * factory, GType type,
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void
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wireplumber__module_init (WpModule * module, WpCore * core, GVariant * args)
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{
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WpRemotePipewire *rp;
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/* Get the remote pipewire */
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rp = wp_core_get_global (core, WP_GLOBAL_REMOTE_PIPEWIRE);
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if (!rp) {
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g_critical ("module-pipewire cannot be loaded without a registered "
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"WpRemotePipewire object");
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return;
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}
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/* Load the client-device and adapter modules */
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wp_remote_pipewire_module_load(rp, "libpipewire-module-client-device", NULL,
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NULL, NULL, NULL);
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wp_remote_pipewire_module_load(rp, "libpipewire-module-adapter", NULL, NULL,
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NULL, NULL);
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/* Register simple-endpoint and simple-endpoint-link */
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wp_factory_new (core, "pipewire-simple-endpoint",
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simple_endpoint_factory);
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@ -11,9 +11,16 @@
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* and automatically creates endpoints for all alsa device nodes that appear
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*/
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#include <wp/wp.h>
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#include <spa/utils/names.h>
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#include <spa/monitor/monitor.h>
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#include <pipewire/pipewire.h>
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#include <spa/param/audio/format-utils.h>
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#include <wp/wp.h>
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struct monitor {
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struct spa_handle *handle;
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struct spa_monitor *monitor;
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struct spa_list device_list;
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};
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struct impl
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{
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@ -21,6 +28,36 @@ struct impl
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WpRemotePipewire *remote_pipewire;
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GHashTable *registered_endpoints;
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GVariant *streams;
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/* The alsa monitor */
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struct monitor monitor;
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};
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struct device {
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struct impl *impl;
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struct spa_list link;
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uint32_t id;
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struct pw_properties *props;
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struct spa_handle *handle;
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struct pw_proxy *proxy;
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struct spa_device *device;
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struct spa_hook device_listener;
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struct spa_list node_list;
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};
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struct node {
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struct impl *impl;
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struct device *device;
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struct spa_list link;
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uint32_t id;
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struct pw_properties *props;
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struct pw_proxy *proxy;
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struct spa_node *node;
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};
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static void
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@ -114,6 +151,281 @@ on_global_removed (WpRemotePipewire *rp, guint id, gpointer d)
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g_hash_table_remove (impl->registered_endpoints, GUINT_TO_POINTER(id));
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}
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static struct node *
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create_node(struct impl *impl, struct device *dev, uint32_t id,
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const struct spa_device_object_info *info)
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{
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struct node *node;
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const char *str;
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/* Check if the type is a node */
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if (info->type != SPA_TYPE_INTERFACE_Node)
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return NULL;
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/* Create the node */
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node = g_slice_new0(struct node);
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/* Set the node properties */
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node->props = pw_properties_copy(dev->props);
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pw_properties_update(node->props, info->props);
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str = pw_properties_get(dev->props, SPA_KEY_DEVICE_NICK);
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if (str == NULL)
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str = pw_properties_get(dev->props, SPA_KEY_DEVICE_NAME);
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if (str == NULL)
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str = pw_properties_get(dev->props, SPA_KEY_DEVICE_ALIAS);
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if (str == NULL)
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str = "alsa-device";
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pw_properties_set(node->props, PW_KEY_NODE_NAME, str);
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pw_properties_set(node->props, "factory.name", info->factory_name);
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pw_properties_set(node->props, "merger.monitor", "1");
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/* Set the node info */
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node->impl = impl;
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node->device = dev;
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node->id = id;
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node->proxy = wp_remote_pipewire_create_object(impl->remote_pipewire,
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"adapter", PW_TYPE_INTERFACE_Node, &node->props->dict);
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if (!node->proxy) {
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g_slice_free (struct node, node);
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return NULL;
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}
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/* Add the node to the list */
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spa_list_append(&dev->node_list, &node->link);
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return node;
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}
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static void
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update_node(struct impl *impl, struct device *dev, struct node *node,
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const struct spa_device_object_info *info)
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{
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/* Just update the properties */
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pw_properties_update(node->props, info->props);
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}
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static void destroy_node(struct impl *impl, struct device *dev, struct node *node)
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{
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/* Remove the node from the list */
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spa_list_remove(&node->link);
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/* Destroy the proxy node */
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pw_proxy_destroy(node->proxy);
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/* Destroy the node */
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g_slice_free (struct node, node);
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}
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static struct node *
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find_node(struct device *dev, uint32_t id)
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{
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struct node *node;
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/* Find the node in the list */
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spa_list_for_each(node, &dev->node_list, link) {
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if (node->id == id)
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return node;
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}
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return NULL;
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}
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static void
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device_object_info(void *data, uint32_t id,
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const struct spa_device_object_info *info)
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{
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struct device *dev = data;
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struct impl *impl = dev->impl;
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struct node *node = NULL;
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/* Find the node */
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node = find_node(dev, id);
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if (info) {
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/* Just update the node if it already exits, otherwise create it */
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if (node)
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update_node(impl, dev, node, info);
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else
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create_node(impl, dev, id, info);
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} else {
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/* Just remove the node if it already exists */
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if (node)
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destroy_node(impl, dev, node);
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}
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}
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static void
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device_info(void *data, const struct spa_device_info *info)
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{
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struct device *dev = data;
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pw_properties_update(dev->props, info->props);
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}
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static const struct spa_device_events device_events = {
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SPA_VERSION_DEVICE_EVENTS,
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.info = device_info,
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.object_info = device_object_info
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};
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static struct device*
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create_device(struct impl *impl, uint32_t id,
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const struct spa_monitor_object_info *info) {
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struct device *dev;
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struct spa_handle *handle;
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int res;
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void *iface;
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/* Check if the type is a device */
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if (info->type != SPA_TYPE_INTERFACE_Device)
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return NULL;
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/* Load the device handle */
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handle = (struct spa_handle *)wp_remote_pipewire_load_spa_handle (
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impl->remote_pipewire, info->factory_name, info->props);
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if (!handle)
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return NULL;
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/* Get the handle interface */
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res = spa_handle_get_interface(handle, info->type, &iface);
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if (res < 0) {
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pw_unload_spa_handle(handle);
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return NULL;
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}
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/* Create the device */
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dev = g_slice_new0(struct device);
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dev->impl = impl;
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dev->id = id;
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dev->handle = handle;
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dev->device = iface;
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dev->props = pw_properties_new_dict(info->props);
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dev->proxy = wp_remote_pipewire_export (impl->remote_pipewire, info->type, dev->props, dev->device, 0);
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if (!dev->proxy) {
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pw_unload_spa_handle(handle);
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return NULL;
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}
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spa_list_init(&dev->node_list);
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/* Add device listener for events */
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spa_device_add_listener(dev->device, &dev->device_listener, &device_events,
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dev);
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/* Add the device to the list */
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spa_list_append(&impl->monitor.device_list, &dev->link);
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return dev;
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}
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static void
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update_device(struct impl *impl, struct device *dev,
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const struct spa_monitor_object_info *info)
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{
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/* Make sure the device and its info are valid */
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g_return_if_fail (dev);
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g_return_if_fail (info);
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/* Update the properties of the device */
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pw_properties_update(dev->props, info->props);
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}
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static void
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destroy_device(struct impl *impl, struct device *dev)
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{
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/* Remove the device from the list */
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spa_list_remove(&dev->link);
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/* Remove the device listener */
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spa_hook_remove(&dev->device_listener);
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/* Destroy the device proxy */
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pw_proxy_destroy(dev->proxy);
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/* Unload the device handle */
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pw_unload_spa_handle(dev->handle);
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/* Destroy the object */
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g_slice_free (struct device, dev);
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}
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static struct device *
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find_device(struct impl *impl, uint32_t id)
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{
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struct device *dev;
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/* Find the device in the list */
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spa_list_for_each(dev, &impl->monitor.device_list, link) {
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if (dev->id == id)
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return dev;
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}
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return NULL;
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}
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static int
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monitor_object_info(gpointer data, uint32_t id,
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const struct spa_monitor_object_info *info)
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{
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struct impl *impl = data;
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struct device *dev = NULL;
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/* Find the device */
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dev = find_device(impl, id);
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if (info) {
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/* Just update the device if it already exits, otherwise create it */
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if (dev)
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update_device(impl, dev, info);
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else
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if (!create_device(impl, id, info))
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return -ENOMEM;
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} else {
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/* Just remove the device if it already exists, otherwise return error */
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if (dev)
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destroy_device(impl, dev);
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else
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return -ENODEV;
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}
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return 0;
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}
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static const struct spa_monitor_callbacks monitor_callbacks =
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{
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SPA_VERSION_MONITOR_CALLBACKS,
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.object_info = monitor_object_info,
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};
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static void
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start_monitor (WpRemotePipewire *remote, WpRemoteState state, gpointer data)
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{
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struct impl *impl = data;
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struct spa_handle *handle;
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int res;
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void *iface;
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/* Load the monitor handle */
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handle = (struct spa_handle *)wp_remote_pipewire_load_spa_handle (
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impl->remote_pipewire, SPA_NAME_API_ALSA_MONITOR, NULL);
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g_return_if_fail (handle);
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/* Get the handle interface */
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res = spa_handle_get_interface(handle, SPA_TYPE_INTERFACE_Monitor, &iface);
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if (res < 0) {
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g_critical ("module-pw-alsa-udev cannot get monitor interface");
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pw_unload_spa_handle(handle);
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return;
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}
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/* Init the monitor data */
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impl->monitor.handle = handle;
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impl->monitor.monitor = iface;
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spa_list_init(&impl->monitor.device_list);
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/* Set the monitor callbacks */
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spa_monitor_set_callbacks(impl->monitor.monitor, &monitor_callbacks, impl);
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}
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static void
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module_destroy (gpointer data)
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{
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@ -159,6 +471,12 @@ wireplumber__module_init (WpModule * module, WpCore * core, GVariant * args)
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/* Set destroy callback for impl */
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wp_module_set_destroy_callback (module, module_destroy, impl);
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/* Add the spa lib */
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wp_remote_pipewire_add_spa_lib (rp, "api.alsa.*", "alsa/libspa-alsa");
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/* Start the monitor when the connected callback is triggered */
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g_signal_connect(rp, "state-changed::connected", (GCallback)start_monitor, impl);
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/* Register the global addded/removed callbacks */
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g_signal_connect(rp, "global-added::node", (GCallback)on_node_added, impl);
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g_signal_connect(rp, "global-removed", (GCallback)on_global_removed, impl);
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