25 #ifndef PIPEWIRE_LINK_H
26 #define PIPEWIRE_LINK_H
52 #define PW_TYPE_INTERFACE_Link PW_TYPE_INFO_INTERFACE_BASE "Link"
54 #define PW_VERSION_LINK 3
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)
96 #define PW_LINK_EVENT_INFO 0
97 #define PW_LINK_EVENT_NUM 1
101 #define PW_VERSION_LINK_EVENTS 0
111 #define PW_LINK_METHOD_ADD_LISTENER 0
112 #define PW_LINK_METHOD_NUM 1
116 #define PW_VERSION_LINK_METHODS 0
125 #define pw_link_method(o,method,version,...) \
127 int _res = -ENOTSUP; \
128 spa_interface_call_res((struct spa_interface*)o, \
129 struct pw_link_methods, _res, \
130 method, version, ##__VA_ARGS__); \
134 #define pw_link_add_listener(c,...) pw_link_method(c,add_listener,0,__VA_ARGS__)
struct pw_link_info * pw_link_info_update(struct pw_link_info *info, const struct pw_link_info *update)
Definition: introspect.c:453
void pw_link_info_free(struct pw_link_info *info)
Definition: introspect.c:491
pw_link_state
The different link states.
Definition: link.h:58
const char * pw_link_state_as_string(enum pw_link_state state)
Convert a pw_link_state to a readable string.
Definition: introspect.c:64
@ PW_LINK_STATE_ACTIVE
the link is active
Definition: link.h:65
@ PW_LINK_STATE_ERROR
the link is in error
Definition: link.h:59
@ PW_LINK_STATE_UNLINKED
the link is unlinked
Definition: link.h:60
@ PW_LINK_STATE_PAUSED
the link is paused
Definition: link.h:64
@ PW_LINK_STATE_NEGOTIATING
the link is negotiating formats
Definition: link.h:62
@ PW_LINK_STATE_INIT
the link is initialized
Definition: link.h:61
@ PW_LINK_STATE_ALLOCATING
the link is allocating buffers
Definition: link.h:63
Link events.
Definition: link.h:100
uint32_t version
Definition: link.h:102
void(* info)(void *object, const struct pw_link_info *info)
Notify link info.
Definition: link.h:108
The link information.
Definition: link.h:71
uint32_t output_port_id
output port id
Definition: link.h:74
uint32_t id
id of the global
Definition: link.h:72
uint64_t change_mask
bitfield of changed fields since last call
Definition: link.h:81
uint32_t output_node_id
server side output node id
Definition: link.h:73
enum pw_link_state state
the current state of the link
Definition: link.h:82
const char * error
an error reason if state is error
Definition: link.h:83
struct spa_dict * props
the properties of the link
Definition: link.h:85
uint32_t input_node_id
server side input node id
Definition: link.h:75
struct spa_pod * format
format over link
Definition: link.h:84
uint32_t input_port_id
input port id
Definition: link.h:76
Link methods.
Definition: link.h:115
uint32_t version
Definition: link.h:117
int(* add_listener)(void *object, struct spa_hook *listener, const struct pw_link_events *events, void *data)
Definition: link.h:119
Definition: utils/dict.h:48
A hook, contains the structure with functions and the data passed to the functions.
Definition: hook.h:76