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/* PipeWire
*
* Copyright © 2019 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 <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <spa/pod/parser.h>
#include "pipewire/pipewire.h"
#include "pipewire/extensions/metadata.h"
struct object_data {
struct pw_metadata *object;
struct spa_hook object_listener;
struct spa_hook object_methods;
struct pw_proxy *proxy;
struct spa_hook proxy_listener;
};
static void proxy_object_destroy(void *_data)
{
struct object_data *data = _data;
spa_hook_remove(&data->proxy_listener);
spa_hook_remove(&data->object_listener);
spa_hook_remove(&data->object_methods);
}
static const struct pw_proxy_events proxy_events = {
PW_VERSION_PROXY_EVENTS,
.destroy = proxy_object_destroy,
};
struct pw_proxy *pw_core_metadata_export(struct pw_core *core,
const char *type, const struct spa_dict *props, void *object,
size_t user_data_size)
{
struct pw_metadata *meta = object;
struct spa_interface *iface, *miface;
struct pw_proxy *proxy;
struct object_data *data;
proxy = pw_core_create_object(core,
"metadata",
PW_TYPE_INTERFACE_Metadata,
PW_VERSION_METADATA,
props,
user_data_size + sizeof(struct object_data));
if (proxy == NULL)
return NULL;
data = pw_proxy_get_user_data(proxy);
data = SPA_PTROFF(data, user_data_size, struct object_data);
data->object = object;
data->proxy = proxy;
iface = (struct spa_interface*)proxy;
miface = (struct spa_interface*)meta;
pw_proxy_install_marshal(proxy, true);
pw_proxy_add_listener(proxy, &data->proxy_listener, &proxy_events, data);
pw_proxy_add_object_listener(proxy, &data->object_methods,
miface->cb.funcs, miface->cb.data);
pw_metadata_add_listener(meta, &data->object_listener,
iface->cb.funcs, iface->cb.data);
return proxy;
}
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