pw_metadata_methods Struct Reference

Metadata methods More...

#include <pipewire/extensions/metadata.h>

Data Fields
uint32_t	version
int(*	add_listener )(void *object, struct spa_hook *listener, const struct pw_metadata_events *events, void *data)
int(*	set_property )(void *object, uint32_t subject, const char *key, const char *type, const char *value)
	Set a metadata property.
int(*	clear )(void *object)
	Clear all metadata.

Detailed Description

Metadata methods

Field Documentation

version

uint32_t pw_metadata_methods::version

add_listener

int(* pw_metadata_methods::add_listener) (void *object, struct spa_hook *listener, const struct pw_metadata_events *events, void *data)

set_property

int(* pw_metadata_methods::set_property) (void *object, uint32_t subject, const char *key, const char *type, const char *value)

Set a metadata property.

Automatically emit property events for the subject and key when they are changed.

Parameters

subject	the id of the global to associate the metadata with.
key	the key of the metadata, NULL clears all metadata for the subject.
type	the type of the metadata, this can be blank
value	the metadata value. NULL clears the metadata.

This requires X and W permissions on the metadata. It also requires M permissions on the subject global.

clear

int(* pw_metadata_methods::clear) (void *object)

Clear all metadata.

This requires X and W permissions on the metadata.

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

• pipewire/extensions/metadata.h