pw_client_session_events Struct Reference

Data Fields
uint32_t	version
	version of this structure More...
int(*	set_param )(void *object, uint32_t id, uint32_t flags, const struct spa_pod *param)
	Set the configurable parameter in session. More...
int(*	link_set_param )(void *object, uint32_t link_id, uint32_t id, uint32_t flags, const struct spa_pod *param)
	Set a parameter on link_id of session. More...
int(*	link_request_state )(void *object, uint32_t link_id, uint32_t state)

Field Documentation

version

uint32_t pw_client_session_events::version

version of this structure

set_param

int(* pw_client_session_events::set_param) (void *object, uint32_t id, uint32_t flags, const struct spa_pod *param)

Set the configurable parameter in session.

Usually, param will be obtained from enum_params and then modified but it is also possible to set another spa_pod as long as its keys and types match a supported object.

Objects with property keys that are not known are ignored.

This function must be called from the main thread.

Parameters

session	a #struct pw_session
id	the parameter id to configure
flags	additional flags
param	the parameter to configure

Returns

0 on success -EINVAL when session is NULL -ENOTSUP when there are no parameters implemented on session -ENOENT the parameter is unknown

link_set_param

int(* pw_client_session_events::link_set_param) (void *object, uint32_t link_id, uint32_t id, uint32_t flags, const struct spa_pod *param)

Set a parameter on link_id of session.

When param is NULL, the parameter will be unset.

This function must be called from the main thread.

Parameters

session	a #struct pw_session
link_id	the link to configure
id	the parameter id to set
flags	optional flags
param	a #struct spa_pod with the parameter to set

Returns

0 on success 1 on success, the value of param might have been changed depending on flags and the final value can be found by doing link_enum_params. -EINVAL when session is NULL or invalid arguments are given -ESRCH when the type or size of a property is not correct. -ENOENT when the param id is not found

link_request_state

int(* pw_client_session_events::link_request_state) (void *object, uint32_t link_id, uint32_t state)

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The documentation for this struct was generated from the following file:

• pipewire/extensions/session-manager/impl-interfaces.h