Control

Files
file	control.h
	pipewire/control.h

Data Structures
struct	pw_control_events
	Port events, use pw_control_add_listener. More...
struct	pw_control

Macros
#define	PW_VERSION_CONTROL_EVENTS   0

Functions
struct pw_impl_port *	pw_control_get_port (struct pw_control *control)
	Get the control parent port or NULL when not set.
void	pw_control_add_listener (struct pw_control *control, struct spa_hook *listener, const struct pw_control_events *events, void *data)
	Add an event listener on the control.

Detailed Description

A control can be used to control a port property.

Macro Definition Documentation

PW_VERSION_CONTROL_EVENTS

#define PW_VERSION_CONTROL_EVENTS   0

Function Documentation

pw_control_get_port()

struct pw_impl_port * pw_control_get_port

(

struct pw_control *

control

)

Get the control parent port or NULL when not set.

pw_control_add_listener()

void pw_control_add_listener	(	struct pw_control *	control,
		struct spa_hook *	listener,
		const struct pw_control_events *	events,
		void *	data )

Add an event listener on the control.

May be called multiple times. Each listener must be removed, but they may be removed in any order.