PipeWire 1.1.0
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link.h
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1/* PipeWire */
2/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
3/* SPDX-License-Identifier: MIT */
4
5#ifndef PIPEWIRE_LINK_H
6#define PIPEWIRE_LINK_H
7
8#ifdef __cplusplus
9extern "C" {
10#endif
11
12#include <spa/utils/defs.h>
13#include <spa/utils/hook.h>
14
15#include <pipewire/proxy.h>
16
32#define PW_TYPE_INTERFACE_Link PW_TYPE_INFO_INTERFACE_BASE "Link"
33
34#define PW_LINK_PERM_MASK PW_PERM_R | PW_PERM_X
35
36#define PW_VERSION_LINK 3
37struct pw_link;
38
48};
51const char * pw_link_state_as_string(enum pw_link_state state);
54 uint32_t id;
55 uint32_t output_node_id;
56 uint32_t output_port_id;
57 uint32_t input_node_id;
58 uint32_t input_port_id;
59#define PW_LINK_CHANGE_MASK_STATE (1 << 0)
60#define PW_LINK_CHANGE_MASK_FORMAT (1 << 1)
61#define PW_LINK_CHANGE_MASK_PROPS (1 << 2)
62#define PW_LINK_CHANGE_MASK_ALL ((1 << 3)-1)
63 uint64_t change_mask;
65 const char *error;
66 struct spa_pod *format;
67 struct spa_dict *props;
68};
69
72 const struct pw_link_info *update);
73
76 const struct pw_link_info *update, bool reset);
78void
80
81
82#define PW_LINK_EVENT_INFO 0
83#define PW_LINK_EVENT_NUM 1
84
86struct pw_link_events {
87#define PW_VERSION_LINK_EVENTS 0
88 uint32_t version;
94 void (*info) (void *data, const struct pw_link_info *info);
95};
96
97#define PW_LINK_METHOD_ADD_LISTENER 0
98#define PW_LINK_METHOD_NUM 1
99
101struct pw_link_methods {
102#define PW_VERSION_LINK_METHODS 0
103 uint32_t version;
104
105 int (*add_listener) (void *object,
106 struct spa_hook *listener,
107 const struct pw_link_events *events,
108 void *data);
110
111#define pw_link_method(o,method,version,...) \
112({ \
113 int _res = -ENOTSUP; \
114 spa_interface_call_res((struct spa_interface*)o, \
115 struct pw_link_methods, _res, \
116 method, version, ##__VA_ARGS__); \
117 _res; \
119
120#define pw_link_add_listener(c,...) pw_link_method(c,add_listener,0,__VA_ARGS__)
126#ifdef __cplusplus
127} /* extern "C" */
128#endif
130#endif /* PIPEWIRE_LINK_H */
spa/utils/defs.h
spa/utils/hook.h
pipewire/proxy.h
Definition dict.h:39
A hook, contains the structure with functions and the data passed to the functions.
Definition hook.h:350
Definition pod.h:43