PipeWire  0.3.66
impl-port.h
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1 /* PipeWire */
2 /* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
3 /* SPDX-License-Identifier: MIT */
4 
5 #ifndef PIPEWIRE_IMPL_PORT_H
6 #define PIPEWIRE_IMPL_PORT_H
7 
8 #ifdef __cplusplus
9 extern "C" {
10 #endif
11 
12 #include <spa/utils/hook.h>
13 
23 struct pw_impl_port;
24 struct pw_impl_link;
25 struct pw_control;
26 
27 #include <pipewire/impl.h>
28 
29 enum pw_impl_port_state {
35 };
36 
39 #define PW_VERSION_IMPL_PORT_EVENTS 2
40  uint32_t version;
41 
43  void (*destroy) (void *data);
44 
46  void (*free) (void *data);
47 
49  void (*initialized) (void *data);
50 
52  void (*info_changed) (void *data, const struct pw_port_info *info);
53 
55  void (*link_added) (void *data, struct pw_impl_link *link);
56 
58  void (*link_removed) (void *data, struct pw_impl_link *link);
59 
61  void (*state_changed) (void *data, enum pw_impl_port_state old,
62  enum pw_impl_port_state state, const char *error);
63 
65  void (*control_added) (void *data, struct pw_control *control);
66 
68  void (*control_removed) (void *data, struct pw_control *control);
69 
71  void (*param_changed) (void *data, uint32_t id);
72 
74  void (*latency_changed) (void *data);
75 };
76 
79 struct pw_impl_port *
80 pw_context_create_port(struct pw_context *context,
81  enum pw_direction direction,
82  uint32_t port_id,
83  const struct spa_port_info *info,
84  size_t user_data_size);
85 
88 
90 const struct pw_properties *pw_impl_port_get_properties(struct pw_impl_port *port);
91 
93 int pw_impl_port_update_properties(struct pw_impl_port *port, const struct spa_dict *dict);
94 
96 const struct pw_port_info *pw_impl_port_get_info(struct pw_impl_port *port);
97 
99 uint32_t pw_impl_port_get_id(struct pw_impl_port *port);
100 
102 struct pw_impl_node *pw_impl_port_get_node(struct pw_impl_port *port);
103 
105 int pw_impl_port_is_linked(struct pw_impl_port *port);
106 
108 int pw_impl_port_add(struct pw_impl_port *port, struct pw_impl_node *node);
109 
111 void pw_impl_port_add_listener(struct pw_impl_port *port,
112  struct spa_hook *listener,
113  const struct pw_impl_port_events *events,
114  void *data);
115 
120 #ifdef __cplusplus
121 }
122 #endif
123 
124 #endif /* PIPEWIRE_IMPL_PORT_H */
int pw_impl_port_update_properties(struct pw_impl_port *port, const struct spa_dict *dict)
Update the port properties.
Definition: impl-port.c:693
pw_impl_port_state
Definition: impl-port.h:36
const struct pw_properties * pw_impl_port_get_properties(struct pw_impl_port *port)
Get the port properties.
Definition: impl-port.c:687
int pw_impl_port_is_linked(struct pw_impl_port *port)
check is a port has links, return 0 if not, 1 if it is linked
Definition: impl-port.c:1480
int pw_impl_port_add(struct pw_impl_port *port, struct pw_impl_node *node)
Add a port to a node.
Definition: impl-port.c:951
struct pw_impl_node * pw_impl_port_get_node(struct pw_impl_port *port)
Get the port parent node or NULL when not yet set.
Definition: impl-port.c:707
enum pw_direction pw_impl_port_get_direction(struct pw_impl_port *port)
Get the port direction.
Definition: impl-port.c:675
struct pw_impl_port * pw_context_create_port(struct pw_context *context, enum pw_direction direction, uint32_t port_id, const struct spa_port_info *info, size_t user_data_size)
Create a new port.
Definition: impl-port.c:455
uint32_t pw_impl_port_get_id(struct pw_impl_port *port)
Get the port id.
Definition: impl-port.c:681
void pw_impl_port_add_listener(struct pw_impl_port *port, struct spa_hook *listener, const struct pw_impl_port_events *events, void *data)
Add an event listener on the port.
Definition: impl-port.c:713
const struct pw_port_info * pw_impl_port_get_info(struct pw_impl_port *port)
Get the port info.
Definition: impl-port.c:722
@ PW_IMPL_PORT_STATE_READY
the port is ready for buffer allocation
Definition: impl-port.h:40
@ PW_IMPL_PORT_STATE_ERROR
the port is in error
Definition: impl-port.h:37
@ PW_IMPL_PORT_STATE_INIT
the port is being created
Definition: impl-port.h:38
@ PW_IMPL_PORT_STATE_PAUSED
the port is paused
Definition: impl-port.h:41
@ PW_IMPL_PORT_STATE_CONFIGURE
the port is ready for format negotiation
Definition: impl-port.h:39
#define pw_direction
The direction of a port.
Definition: port.h:43
spa/utils/hook.h
pipewire/impl.h
Port events, use pw_impl_port_add_listener.
Definition: impl-port.h:45
void(* control_added)(void *data, struct pw_control *control)
a control was added to the port
Definition: impl-port.h:73
void(* destroy)(void *data)
The port is destroyed.
Definition: impl-port.h:51
void(* info_changed)(void *data, const struct pw_port_info *info)
the port info changed
Definition: impl-port.h:60
void(* free)(void *data)
The port is freed.
Definition: impl-port.h:54
void(* link_added)(void *data, struct pw_impl_link *link)
a new link is added on this port
Definition: impl-port.h:63
void(* latency_changed)(void *data)
latency changed.
Definition: impl-port.h:82
void(* state_changed)(void *data, enum pw_impl_port_state old, enum pw_impl_port_state state, const char *error)
the state of the port changed
Definition: impl-port.h:69
uint32_t version
Definition: impl-port.h:48
void(* param_changed)(void *data, uint32_t id)
a parameter changed, since version 1
Definition: impl-port.h:79
void(* initialized)(void *data)
The port is initialized.
Definition: impl-port.h:57
void(* control_removed)(void *data, struct pw_control *control)
a control was removed from the port
Definition: impl-port.h:76
void(* link_removed)(void *data, struct pw_impl_link *link)
a link is removed from this port
Definition: impl-port.h:66
Definition: impl.h:27
Definition: port.h:52
Definition: properties.h:33
struct spa_dict dict
dictionary of key/values
Definition: properties.h:34
Definition: utils/dict.h:39
A hook, contains the structure with functions and the data passed to the functions.
Definition: hook.h:331
Port information structure.
Definition: spa/include/spa/node/node.h:93