PipeWire 0.3.34
link.h
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1/* PipeWire
2 *
3 * Copyright © 2018 Wim Taymans
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24
25#ifndef PIPEWIRE_LINK_H
26#define PIPEWIRE_LINK_H
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
32#include <spa/utils/defs.h>
33#include <spa/utils/hook.h>
34
35#include <pipewire/proxy.h>
36
52#define PW_TYPE_INTERFACE_Link PW_TYPE_INFO_INTERFACE_BASE "Link"
53
54#define PW_VERSION_LINK 3
55struct pw_link;
56
66};
67
69const char * pw_link_state_as_string(enum pw_link_state state);
72 uint32_t id;
73 uint32_t output_node_id;
74 uint32_t output_port_id;
75 uint32_t input_node_id;
76 uint32_t input_port_id;
77#define PW_LINK_CHANGE_MASK_STATE (1 << 0)
78#define PW_LINK_CHANGE_MASK_FORMAT (1 << 1)
79#define PW_LINK_CHANGE_MASK_PROPS (1 << 2)
80#define PW_LINK_CHANGE_MASK_ALL ((1 << 3)-1)
81 uint64_t change_mask;
83 const char *error;
84 struct spa_pod *format;
85 struct spa_dict *props;
86};
87
88struct pw_link_info *
90 const struct pw_link_info *update);
91
92void
94
95
96#define PW_LINK_EVENT_INFO 0
97#define PW_LINK_EVENT_NUM 1
98
101#define PW_VERSION_LINK_EVENTS 0
102 uint32_t version;
108 void (*info) (void *object, const struct pw_link_info *info);
109};
110
111#define PW_LINK_METHOD_ADD_LISTENER 0
112#define PW_LINK_METHOD_NUM 1
113
116#define PW_VERSION_LINK_METHODS 0
117 uint32_t version;
118
119 int (*add_listener) (void *object,
120 struct spa_hook *listener,
121 const struct pw_link_events *events,
122 void *data);
123};
124
125#define pw_link_method(o,method,version,...) \
126({ \
127 int _res = -ENOTSUP; \
128 spa_interface_call_res((struct spa_interface*)o, \
129 struct pw_link_methods, _res, \
130 method, version, ##__VA_ARGS__); \
131 _res; \
132})
133
134#define pw_link_add_listener(c,...) pw_link_method(c,add_listener,0,__VA_ARGS__)
135
140#ifdef __cplusplus
141} /* extern "C" */
142#endif
143
144#endif /* PIPEWIRE_LINK_H */
user data to add to an object
Definition: media-session.c:109
Definition: utils/dict.h:48
A hook, contains the structure with functions and the data passed to the functions.
Definition: hook.h:295
Definition: pod/pod.h:50