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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 <errno.h>
#include <spa/pod/builder.h>
#include <spa/pod/parser.h>
#include <spa/utils/result.h>
#include <pipewire/pipewire.h>
#include <pipewire/extensions/protocol-native.h>
#include <pipewire/extensions/metadata.h>
static int metadata_resource_marshal_add_listener(void *object,
struct spa_hook *listener,
const struct pw_metadata_events *events,
void *data)
{
struct pw_resource *resource = object;
struct spa_pod_builder *b;
pw_resource_add_object_listener(resource, listener, events, data);
b = pw_protocol_native_begin_resource(resource, PW_METADATA_METHOD_ADD_LISTENER, NULL);
return pw_protocol_native_end_resource(resource, b);
}
static int metadata_proxy_marshal_add_listener(void *object,
struct spa_hook *listener,
const struct pw_metadata_events *events,
void *data)
{
struct pw_proxy *proxy = object;
pw_proxy_add_object_listener(proxy, listener, events, data);
return 0;
}
static int metadata_resource_demarshal_add_listener(void *object,
const struct pw_protocol_native_message *msg)
{
return -ENOTSUP;
}
static const struct pw_metadata_events pw_protocol_native_metadata_client_event_marshal;
static int metadata_proxy_demarshal_add_listener(void *object,
const struct pw_protocol_native_message *msg)
{
struct pw_proxy *proxy = object;
struct spa_hook listener;
int res;
spa_zero(listener);
res = pw_proxy_notify(proxy, struct pw_metadata_methods, add_listener, 0,
&listener, &pw_protocol_native_metadata_client_event_marshal, object);
spa_hook_remove(&listener);
return res;
}
static void metadata_marshal_set_property(struct spa_pod_builder *b, uint32_t subject,
const char *key, const char *type, const char *value)
{
spa_pod_builder_add_struct(b,
SPA_POD_Int(subject),
SPA_POD_String(key),
SPA_POD_String(type),
SPA_POD_String(value));
}
static int metadata_proxy_marshal_set_property(void *object, uint32_t subject,
const char *key, const char *type, const char *value)
{
struct pw_proxy *proxy = object;
struct spa_pod_builder *b;
b = pw_protocol_native_begin_proxy(proxy, PW_METADATA_METHOD_SET_PROPERTY, NULL);
metadata_marshal_set_property(b, subject, key, type, value);
return pw_protocol_native_end_proxy(proxy, b);
}
static int metadata_resource_marshal_set_property(void *object, uint32_t subject,
const char *key, const char *type, const char *value)
{
struct pw_resource *resource = object;
struct spa_pod_builder *b;
b = pw_protocol_native_begin_resource(resource, PW_METADATA_METHOD_SET_PROPERTY, NULL);
metadata_marshal_set_property(b, subject, key, type, value);
return pw_protocol_native_end_resource(resource, b);
}
static int metadata_demarshal_set_property(struct spa_pod_parser *prs, uint32_t *subject,
char **key, char **type, char **value)
{
return spa_pod_parser_get_struct(prs,
SPA_POD_Int(subject),
SPA_POD_String(key),
SPA_POD_String(type),
SPA_POD_String(value));
}
static int metadata_proxy_demarshal_set_property(void *object,
const struct pw_protocol_native_message *msg)
{
struct pw_proxy *proxy = object;
struct spa_pod_parser prs;
uint32_t subject;
char *key, *type, *value;
spa_pod_parser_init(&prs, msg->data, msg->size);
if (metadata_demarshal_set_property(&prs, &subject, &key, &type, &value) < 0)
return -EINVAL;
return pw_proxy_notify(proxy, struct pw_metadata_methods, set_property, 0, subject, key, type, value);
}
static int metadata_resource_demarshal_set_property(void *object,
const struct pw_protocol_native_message *msg)
{
struct pw_resource *resource = object;
struct spa_pod_parser prs;
uint32_t subject;
char *key, *type, *value;
spa_pod_parser_init(&prs, msg->data, msg->size);
if (metadata_demarshal_set_property(&prs, &subject, &key, &type, &value) < 0)
return -EINVAL;
return pw_resource_notify(resource, struct pw_metadata_methods, set_property, 0, subject, key, type, value);
}
static void metadata_marshal_clear(struct spa_pod_builder *b)
{
spa_pod_builder_add_struct(b, SPA_POD_None());
}
static int metadata_proxy_marshal_clear(void *object)
{
struct pw_proxy *proxy = object;
struct spa_pod_builder *b;
b = pw_protocol_native_begin_proxy(proxy, PW_METADATA_METHOD_CLEAR, NULL);
metadata_marshal_clear(b);
return pw_protocol_native_end_proxy(proxy, b);
}
static int metadata_resource_marshal_clear(void *object)
{
struct pw_resource *resource = object;
struct spa_pod_builder *b;
b = pw_protocol_native_begin_resource(resource, PW_METADATA_METHOD_CLEAR, NULL);
metadata_marshal_clear(b);
return pw_protocol_native_end_resource(resource, b);
}
static int metadata_proxy_demarshal_clear(void *object, const struct pw_protocol_native_message *msg)
{
struct pw_proxy *proxy = object;
struct spa_pod_parser prs;
spa_pod_parser_init(&prs, msg->data, msg->size);
if (spa_pod_parser_get_struct(&prs, SPA_POD_None()) < 0)
return -EINVAL;
pw_proxy_notify(proxy, struct pw_metadata_methods, clear, 0);
return 0;
}
static int metadata_resource_demarshal_clear(void *object, const struct pw_protocol_native_message *msg)
{
struct pw_resource *resource = object;
struct spa_pod_parser prs;
spa_pod_parser_init(&prs, msg->data, msg->size);
if (spa_pod_parser_get_struct(&prs, SPA_POD_None()) < 0)
return -EINVAL;
pw_resource_notify(resource, struct pw_metadata_methods, clear, 0);
return 0;
}
static void metadata_marshal_property(struct spa_pod_builder *b, uint32_t subject,
const char *key, const char *type, const char *value)
{
spa_pod_builder_add_struct(b,
SPA_POD_Int(subject),
SPA_POD_String(key),
SPA_POD_String(type),
SPA_POD_String(value));
}
static int metadata_proxy_marshal_property(void *object, uint32_t subject,
const char *key, const char *type, const char *value)
{
struct pw_proxy *proxy = object;
struct spa_pod_builder *b;
b = pw_protocol_native_begin_proxy(proxy, PW_METADATA_EVENT_PROPERTY, NULL);
metadata_marshal_property(b, subject, key, type, value);
return pw_protocol_native_end_proxy(proxy, b);
}
static int metadata_resource_marshal_property(void *object, uint32_t subject,
const char *key, const char *type, const char *value)
{
struct pw_resource *resource = object;
struct spa_pod_builder *b;
b = pw_protocol_native_begin_resource(resource, PW_METADATA_EVENT_PROPERTY, NULL);
metadata_marshal_property(b, subject, key, type, value);
return pw_protocol_native_end_resource(resource, b);
}
static int metadata_demarshal_property(struct spa_pod_parser *prs,
uint32_t *subject, char **key, char **type, char **value)
{
return spa_pod_parser_get_struct(prs,
SPA_POD_Int(subject),
SPA_POD_String(key),
SPA_POD_String(type),
SPA_POD_String(value));
}
static int metadata_proxy_demarshal_property(void *object,
const struct pw_protocol_native_message *msg)
{
struct pw_proxy *proxy = object;
struct spa_pod_parser prs;
uint32_t subject;
char *key, *type, *value;
spa_pod_parser_init(&prs, msg->data, msg->size);
if (metadata_demarshal_property(&prs,
&subject, &key, &type, &value) < 0)
return -EINVAL;
pw_proxy_notify(proxy, struct pw_metadata_events, property, 0, subject, key, type, value);
return 0;
}
static int metadata_resource_demarshal_property(void *object,
const struct pw_protocol_native_message *msg)
{
struct pw_resource *resource = object;
struct spa_pod_parser prs;
uint32_t subject;
char *key, *type, *value;
spa_pod_parser_init(&prs, msg->data, msg->size);
if (metadata_demarshal_property(&prs,
&subject, &key, &type, &value) < 0)
return -EINVAL;
pw_resource_notify(resource, struct pw_metadata_events, property, 0, subject, key, type, value);
return 0;
}
static const struct pw_metadata_methods pw_protocol_native_metadata_client_method_marshal = {
PW_VERSION_METADATA_METHODS,
.add_listener = &metadata_proxy_marshal_add_listener,
.set_property = &metadata_proxy_marshal_set_property,
.clear = &metadata_proxy_marshal_clear,
};
static const struct pw_metadata_methods pw_protocol_native_metadata_server_method_marshal = {
PW_VERSION_METADATA_METHODS,
.add_listener = &metadata_resource_marshal_add_listener,
.set_property = &metadata_resource_marshal_set_property,
.clear = &metadata_resource_marshal_clear,
};
static const struct pw_protocol_native_demarshal
pw_protocol_native_metadata_client_method_demarshal[PW_METADATA_METHOD_NUM] =
{
[PW_METADATA_METHOD_ADD_LISTENER] = { &metadata_proxy_demarshal_add_listener, 0 },
[PW_METADATA_METHOD_SET_PROPERTY] = { &metadata_proxy_demarshal_set_property, PW_PERM_W },
[PW_METADATA_METHOD_CLEAR] = { &metadata_proxy_demarshal_clear, PW_PERM_W },
};
static const struct pw_protocol_native_demarshal
pw_protocol_native_metadata_server_method_demarshal[PW_METADATA_METHOD_NUM] =
{
[PW_METADATA_METHOD_ADD_LISTENER] = { &metadata_resource_demarshal_add_listener, 0 },
[PW_METADATA_METHOD_SET_PROPERTY] = { &metadata_resource_demarshal_set_property, PW_PERM_W },
[PW_METADATA_METHOD_CLEAR] = { &metadata_resource_demarshal_clear, PW_PERM_W },
};
static const struct pw_metadata_events pw_protocol_native_metadata_client_event_marshal = {
PW_VERSION_METADATA_EVENTS,
.property = &metadata_proxy_marshal_property,
};
static const struct pw_metadata_events pw_protocol_native_metadata_server_event_marshal = {
PW_VERSION_METADATA_EVENTS,
.property = &metadata_resource_marshal_property,
};
static const struct pw_protocol_native_demarshal
pw_protocol_native_metadata_client_event_demarshal[PW_METADATA_EVENT_NUM] =
{
[PW_METADATA_EVENT_PROPERTY] = { &metadata_proxy_demarshal_property, 0 },
};
static const struct pw_protocol_native_demarshal
pw_protocol_native_metadata_server_event_demarshal[PW_METADATA_EVENT_NUM] =
{
[PW_METADATA_EVENT_PROPERTY] = { &metadata_resource_demarshal_property, 0 },
};
static const struct pw_protocol_marshal pw_protocol_native_metadata_marshal = {
PW_TYPE_INTERFACE_Metadata,
PW_VERSION_METADATA,
0,
PW_METADATA_METHOD_NUM,
PW_METADATA_EVENT_NUM,
.client_marshal = &pw_protocol_native_metadata_client_method_marshal,
.server_demarshal = pw_protocol_native_metadata_server_method_demarshal,
.server_marshal = &pw_protocol_native_metadata_server_event_marshal,
.client_demarshal = pw_protocol_native_metadata_client_event_demarshal,
};
static const struct pw_protocol_marshal pw_protocol_native_metadata_impl_marshal = {
PW_TYPE_INTERFACE_Metadata,
PW_VERSION_METADATA,
PW_PROTOCOL_MARSHAL_FLAG_IMPL,
PW_METADATA_EVENT_NUM,
PW_METADATA_METHOD_NUM,
.client_marshal = &pw_protocol_native_metadata_client_event_marshal,
.server_demarshal = pw_protocol_native_metadata_server_event_demarshal,
.server_marshal = &pw_protocol_native_metadata_server_method_marshal,
.client_demarshal = pw_protocol_native_metadata_client_method_demarshal,
};
int pw_protocol_native_ext_metadata_init(struct pw_context *context)
{
struct pw_protocol *protocol;
protocol = pw_context_find_protocol(context, PW_TYPE_INFO_PROTOCOL_Native);
if (protocol == NULL)
return -EPROTO;
pw_protocol_add_marshal(protocol, &pw_protocol_native_metadata_marshal);
pw_protocol_add_marshal(protocol, &pw_protocol_native_metadata_impl_marshal);
return 0;
}
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