PipeWire 0.3.73
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_VERSION_LINK 3
35struct pw_link;
36
38enum pw_link_state {
46};
49const char * pw_link_state_as_string(enum pw_link_state state);
52 uint32_t id;
53 uint32_t output_node_id;
54 uint32_t output_port_id;
55 uint32_t input_node_id;
56 uint32_t input_port_id;
57#define PW_LINK_CHANGE_MASK_STATE (1 << 0)
58#define PW_LINK_CHANGE_MASK_FORMAT (1 << 1)
59#define PW_LINK_CHANGE_MASK_PROPS (1 << 2)
60#define PW_LINK_CHANGE_MASK_ALL ((1 << 3)-1)
61 uint64_t change_mask;
63 const char *error;
64 struct spa_pod *format;
65 struct spa_dict *props;
66};
68struct pw_link_info *
70 const struct pw_link_info *update);
74 const struct pw_link_info *update, bool reset);
76void
78
79
80#define PW_LINK_EVENT_INFO 0
81#define PW_LINK_EVENT_NUM 1
82
84struct pw_link_events {
85#define PW_VERSION_LINK_EVENTS 0
86 uint32_t version;
92 void (*info) (void *data, const struct pw_link_info *info);
93};
95#define PW_LINK_METHOD_ADD_LISTENER 0
96#define PW_LINK_METHOD_NUM 1
100#define PW_VERSION_LINK_METHODS 0
101 uint32_t version;
102
103 int (*add_listener) (void *object,
104 struct spa_hook *listener,
105 const struct pw_link_events *events,
106 void *data);
107};
108
109#define pw_link_method(o,method,version,...) \
110({ \
111 int _res = -ENOTSUP; \
112 spa_interface_call_res((struct spa_interface*)o, \
113 struct pw_link_methods, _res, \
114 method, version, ##__VA_ARGS__); \
115 _res; \
116})
118#define pw_link_add_listener(c,...) pw_link_method(c,add_listener,0,__VA_ARGS__)
119
124#ifdef __cplusplus
125} /* extern "C" */
126#endif
127
128#endif /* PIPEWIRE_LINK_H */
spa/utils/defs.h
spa/utils/hook.h
pipewire/proxy.h
Definition: utils/dict.h:39
A hook, contains the structure with functions and the data passed to the functions.
Definition: hook.h:350
Definition: pod/pod.h:43