25 #ifndef PIPEWIRE_PORT_H 26 #define PIPEWIRE_PORT_H 50 #define PW_TYPE_INTERFACE_Port PW_TYPE_INFO_INTERFACE_BASE "Port" 52 #define PW_VERSION_PORT 3 56 #define pw_direction spa_direction 57 #define PW_DIRECTION_INPUT SPA_DIRECTION_INPUT 58 #define PW_DIRECTION_OUTPUT SPA_DIRECTION_OUTPUT 66 #define PW_PORT_CHANGE_MASK_PROPS (1 << 0) 67 #define PW_PORT_CHANGE_MASK_PARAMS (1 << 1) 68 #define PW_PORT_CHANGE_MASK_ALL ((1 << 2)-1) 86 #define PW_PORT_EVENT_INFO 0 87 #define PW_PORT_EVENT_PARAM 1 88 #define PW_PORT_EVENT_NUM 2 92 #define PW_VERSION_PORT_EVENTS 0 111 void (*
param) (
void *object,
int seq,
112 uint32_t
id, uint32_t index, uint32_t next,
116 #define PW_PORT_METHOD_ADD_LISTENER 0 117 #define PW_PORT_METHOD_SUBSCRIBE_PARAMS 1 118 #define PW_PORT_METHOD_ENUM_PARAMS 2 119 #define PW_PORT_METHOD_NUM 3 123 #define PW_VERSION_PORT_METHODS 0 154 uint32_t id, uint32_t start, uint32_t num,
158 #define pw_port_method(o,method,version,...) \ 160 int _res = -ENOTSUP; \ 161 spa_interface_call_res((struct spa_interface*)o, \ 162 struct pw_port_methods, _res, \ 163 method, version, ##__VA_ARGS__); \ 167 #define pw_port_add_listener(c,...) pw_port_method(c,add_listener,0,__VA_ARGS__) 168 #define pw_port_subscribe_params(c,...) pw_port_method(c,subscribe_params,0,__VA_ARGS__) 169 #define pw_port_enum_params(c,...) pw_port_method(c,enum_params,0,__VA_ARGS__) struct pw_port_info * pw_port_info_update(struct pw_port_info *info, const struct pw_port_info *update)
Definition: introspect.c:301
#define pw_direction
The direction of a port.
Definition: port.h:63
uint32_t n_params
number of items in params
Definition: port.h:84
void pw_port_info_free(struct pw_port_info *info)
Definition: introspect.c:308
A hook, contains the structure with functions and the data passed to the functions.
Definition: hook.h:351
uint64_t change_mask
bitfield of changed fields since last call
Definition: port.h:81
uint32_t version
Definition: port.h:109
enum pw_direction direction
port direction
Definition: port.h:74
int(* subscribe_params)(void *object, uint32_t *ids, uint32_t n_ids)
Subscribe to parameter changes.
Definition: port.h:160
uint32_t id
id of the global
Definition: port.h:73
information about a parameter
Definition: param.h:70
Port events.
Definition: port.h:106
struct pw_port_info * pw_port_info_merge(struct pw_port_info *info, const struct pw_port_info *update, bool reset)
Definition: introspect.c:253
void(* info)(void *object, const struct pw_port_info *info)
Notify port info.
Definition: port.h:115
uint32_t version
Definition: port.h:145
void(* param)(void *object, int seq, uint32_t id, uint32_t index, uint32_t next, const struct spa_pod *param)
Notify a port param.
Definition: port.h:127
const char * pw_direction_as_string(enum pw_direction direction)
Convert a pw_direction to a readable string.
Definition: introspect.c:52
Port methods.
Definition: port.h:142
struct spa_param_info * params
parameters
Definition: port.h:83
int(* add_listener)(void *object, struct spa_hook *listener, const struct pw_port_events *events, void *data)
Definition: port.h:147
int(* enum_params)(void *object, int seq, uint32_t id, uint32_t start, uint32_t num, const struct spa_pod *filter)
Enumerate port parameters.
Definition: port.h:174