mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-12-23 08:56:47 -05:00
adapter: add adapter node
An adapter is like an audio-dsp node and client-stream combined. It allows tighter control with the device (for rate control and variable buffer sizes), software volume. The idea is to also implement the client-stream with this eventually.
This commit is contained in:
Wim Taymans
parent
0726a608df
commit
aba81455ff
5 changed files with 2783 additions and 0 deletions
259
src/modules/module-adapter.c
Normal file
259
src/modules/module-adapter.c
Normal file
|
|
@ -0,0 +1,259 @@
|
|||
/* 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/node/node.h>
|
||||
#include <spa/utils/hook.h>
|
||||
|
||||
#include <pipewire/pipewire.h>
|
||||
#include "pipewire/private.h"
|
||||
|
||||
#include "modules/spa/spa-node.h"
|
||||
#include "module-adapter/adapter.h"
|
||||
|
||||
#define FACTORY_USAGE SPA_KEY_FACTORY_NAME"=<factory-name> " \
|
||||
"["SPA_KEY_LIBRARY_NAME"=<library-name>] " \
|
||||
ADAPTER_USAGE
|
||||
|
||||
static const struct spa_dict_item module_props[] = {
|
||||
{ PW_KEY_MODULE_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" },
|
||||
{ PW_KEY_MODULE_DESCRIPTION, "Manage adapter nodes" },
|
||||
{ PW_KEY_MODULE_VERSION, PACKAGE_VERSION },
|
||||
};
|
||||
|
||||
struct factory_data {
|
||||
struct pw_factory *this;
|
||||
|
||||
struct spa_list node_list;
|
||||
|
||||
struct pw_module *module;
|
||||
struct spa_hook module_listener;
|
||||
};
|
||||
|
||||
struct node_data {
|
||||
struct factory_data *data;
|
||||
struct spa_list link;
|
||||
struct pw_node *adapter;
|
||||
struct spa_hook adapter_listener;
|
||||
struct spa_hook resource_listener;
|
||||
};
|
||||
|
||||
static void resource_destroy(void *data)
|
||||
{
|
||||
struct node_data *nd = data;
|
||||
spa_hook_remove(&nd->resource_listener);
|
||||
if (nd->adapter)
|
||||
pw_node_destroy(nd->adapter);
|
||||
}
|
||||
|
||||
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;
|
||||
spa_list_remove(&nd->link);
|
||||
nd->adapter = NULL;
|
||||
}
|
||||
|
||||
static const struct pw_node_events node_events = {
|
||||
PW_VERSION_NODE_EVENTS,
|
||||
.destroy = node_destroy
|
||||
};
|
||||
|
||||
static void *create_object(void *_data,
|
||||
struct pw_resource *resource,
|
||||
uint32_t type,
|
||||
uint32_t version,
|
||||
struct pw_properties *properties,
|
||||
uint32_t new_id)
|
||||
{
|
||||
struct factory_data *d = _data;
|
||||
struct pw_client *client = pw_resource_get_client(resource);
|
||||
struct pw_node *adapter, *slave;
|
||||
const char *factory_name;
|
||||
int res;
|
||||
struct node_data *nd;
|
||||
struct pw_resource *bound_resource;
|
||||
|
||||
if (resource == NULL)
|
||||
goto error_resource;
|
||||
|
||||
if (properties == NULL)
|
||||
goto error_properties;
|
||||
|
||||
factory_name = pw_properties_get(properties, SPA_KEY_FACTORY_NAME);
|
||||
if (factory_name == NULL)
|
||||
goto error_properties;
|
||||
|
||||
slave = pw_spa_node_load(client->core,
|
||||
NULL,
|
||||
pw_factory_get_global(d->this),
|
||||
factory_name,
|
||||
"slave-node",
|
||||
PW_SPA_NODE_FLAG_ACTIVATE |
|
||||
PW_SPA_NODE_FLAG_NO_REGISTER,
|
||||
pw_properties_copy(properties), 0);
|
||||
if (slave == NULL)
|
||||
goto error_no_mem;
|
||||
|
||||
adapter = pw_adapter_new(pw_module_get_core(d->module),
|
||||
slave,
|
||||
properties,
|
||||
sizeof(struct node_data));
|
||||
properties = NULL;
|
||||
|
||||
if (adapter == NULL) {
|
||||
if (errno == ENOMEM)
|
||||
goto error_no_mem;
|
||||
else
|
||||
goto error_usage;
|
||||
}
|
||||
|
||||
nd = pw_adapter_get_user_data(adapter);
|
||||
nd->data = d;
|
||||
nd->adapter = adapter;
|
||||
spa_list_append(&d->node_list, &nd->link);
|
||||
|
||||
client = pw_resource_get_client(resource);
|
||||
|
||||
pw_node_register(adapter, client, pw_module_get_global(d->module), NULL);
|
||||
pw_node_add_listener(adapter, &nd->adapter_listener, &node_events, nd);
|
||||
|
||||
res = pw_global_bind(pw_node_get_global(adapter), client,
|
||||
PW_PERM_RWX, PW_VERSION_NODE_PROXY, new_id);
|
||||
if (res < 0)
|
||||
goto error_bind;
|
||||
|
||||
if ((bound_resource = pw_client_find_resource(client, new_id)) == NULL)
|
||||
goto error_bind;
|
||||
|
||||
pw_resource_add_listener(bound_resource, &nd->resource_listener, &resource_events, nd);
|
||||
|
||||
pw_node_set_active(adapter, true);
|
||||
|
||||
return adapter;
|
||||
|
||||
error_resource:
|
||||
res = -EINVAL;
|
||||
pw_log_error("adapter needs a resource");
|
||||
goto error_cleanup;
|
||||
error_properties:
|
||||
res = -EINVAL;
|
||||
pw_log_error("factory %p: usage: " FACTORY_USAGE, d->this);
|
||||
pw_resource_error(resource, res, "usage: " FACTORY_USAGE);
|
||||
goto error_cleanup;
|
||||
error_no_mem:
|
||||
res = -errno;
|
||||
pw_log_error("can't create node: %m");
|
||||
pw_resource_error(resource, res, "can't create node: %s", spa_strerror(res));
|
||||
goto error_cleanup;
|
||||
error_usage:
|
||||
res = -EINVAL;
|
||||
pw_log_error("usage: "ADAPTER_USAGE);
|
||||
pw_resource_error(resource, res, "usage: "ADAPTER_USAGE);
|
||||
goto error_cleanup;
|
||||
error_bind:
|
||||
pw_resource_error(resource, res, "can't bind adapter node");
|
||||
goto error_cleanup;
|
||||
error_cleanup:
|
||||
if (properties)
|
||||
pw_properties_free(properties);
|
||||
errno = -res;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const struct pw_factory_implementation impl_factory = {
|
||||
PW_VERSION_FACTORY_IMPLEMENTATION,
|
||||
.create_object = create_object,
|
||||
};
|
||||
|
||||
static void module_destroy(void *data)
|
||||
{
|
||||
struct factory_data *d = data;
|
||||
struct node_data *nd, *t;
|
||||
|
||||
spa_hook_remove(&d->module_listener);
|
||||
|
||||
spa_list_for_each_safe(nd, t, &d->node_list, link)
|
||||
pw_node_destroy(nd->adapter);
|
||||
|
||||
pw_factory_destroy(d->this);
|
||||
}
|
||||
|
||||
static const struct pw_module_events module_events = {
|
||||
PW_VERSION_MODULE_EVENTS,
|
||||
.destroy = module_destroy,
|
||||
};
|
||||
|
||||
static int module_init(struct pw_module *module, struct pw_properties *properties)
|
||||
{
|
||||
struct pw_core *core = pw_module_get_core(module);
|
||||
struct pw_factory *factory;
|
||||
struct factory_data *data;
|
||||
|
||||
factory = pw_factory_new(core,
|
||||
"adapter",
|
||||
PW_TYPE_INTERFACE_Node,
|
||||
PW_VERSION_NODE_PROXY,
|
||||
pw_properties_new(
|
||||
PW_KEY_FACTORY_USAGE, FACTORY_USAGE,
|
||||
NULL),
|
||||
sizeof(*data));
|
||||
if (factory == NULL)
|
||||
return -errno;
|
||||
|
||||
data = pw_factory_get_user_data(factory);
|
||||
data->this = factory;
|
||||
data->module = module;
|
||||
spa_list_init(&data->node_list);
|
||||
|
||||
pw_log_debug("module %p: new", module);
|
||||
|
||||
pw_factory_set_implementation(factory,
|
||||
&impl_factory,
|
||||
data);
|
||||
|
||||
pw_factory_register(factory, NULL, pw_module_get_global(module), NULL);
|
||||
|
||||
pw_module_add_listener(module, &data->module_listener, &module_events, data);
|
||||
|
||||
pw_module_update_properties(module, &SPA_DICT_INIT_ARRAY(module_props));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
SPA_EXPORT
|
||||
int pipewire__module_init(struct pw_module *module, const char *args)
|
||||
{
|
||||
return module_init(module, NULL);
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue