Client Node

Client node interface. More...

Files
file	client-node.h
	pipewire/extensions/client-node.h

Data Structures
struct	pw_client_node_buffer
	information about a buffer More...
struct	pw_client_node_events
	Client Node events More...
struct	pw_client_node_methods
	Client Node methods More...
struct	pw_client_node

Macros
#define	PW_TYPE_INTERFACE_ClientNode   PW_TYPE_INFO_INTERFACE_BASE "ClientNode"
#define	PW_VERSION_CLIENT_NODE   4
#define	PW_EXTENSION_MODULE_CLIENT_NODE   PIPEWIRE_MODULE_PREFIX "module-client-node"
#define	PW_CLIENT_NODE_EVENT_TRANSPORT   0
#define	PW_CLIENT_NODE_EVENT_SET_PARAM   1
#define	PW_CLIENT_NODE_EVENT_SET_IO   2
#define	PW_CLIENT_NODE_EVENT_EVENT   3
#define	PW_CLIENT_NODE_EVENT_COMMAND   4
#define	PW_CLIENT_NODE_EVENT_ADD_PORT   5
#define	PW_CLIENT_NODE_EVENT_REMOVE_PORT   6
#define	PW_CLIENT_NODE_EVENT_PORT_SET_PARAM   7
#define	PW_CLIENT_NODE_EVENT_PORT_USE_BUFFERS   8
#define	PW_CLIENT_NODE_EVENT_PORT_SET_IO   9
#define	PW_CLIENT_NODE_EVENT_SET_ACTIVATION   10
#define	PW_CLIENT_NODE_EVENT_PORT_SET_MIX_INFO   11
#define	PW_CLIENT_NODE_EVENT_NUM   12
#define	PW_VERSION_CLIENT_NODE_EVENTS   1
#define	PW_CLIENT_NODE_METHOD_ADD_LISTENER   0
#define	PW_CLIENT_NODE_METHOD_GET_NODE   1
#define	PW_CLIENT_NODE_METHOD_UPDATE   2
#define	PW_CLIENT_NODE_METHOD_PORT_UPDATE   3
#define	PW_CLIENT_NODE_METHOD_SET_ACTIVE   4
#define	PW_CLIENT_NODE_METHOD_EVENT   5
#define	PW_CLIENT_NODE_METHOD_PORT_BUFFERS   6
#define	PW_CLIENT_NODE_METHOD_NUM   7
#define	PW_VERSION_CLIENT_NODE_METHODS   0
#define	pw_client_node_method(o, method, version, ...)
#define	pw_client_node_add_listener(c, ...)   pw_client_node_method(c,add_listener,0,__VA_ARGS__)
#define	pw_client_node_update(c, ...)   pw_client_node_method(c,update,0,__VA_ARGS__)
	Update the node ports and properties. More...
#define	pw_client_node_port_update(c, ...)   pw_client_node_method(c,port_update,0,__VA_ARGS__)
	Update a node port. More...
#define	pw_client_node_set_active(c, ...)   pw_client_node_method(c,set_active,0,__VA_ARGS__)
	Activate or deactivate the node. More...
#define	pw_client_node_event(c, ...)   pw_client_node_method(c,event,0,__VA_ARGS__)
	Send an event to the node. More...
#define	pw_client_node_port_buffers(c, ...)   pw_client_node_method(c,port_buffers,0,__VA_ARGS__)
	Send allocated buffers. More...

Functions
static struct pw_node *	pw_client_node_get_node (struct pw_client_node *p, uint32_t version, size_t user_data_size)

Variables
int(*	pw_client_node_methods::update )(void *object, #define PW_CLIENT_NODE_UPDATE_PARAMS #define PW_CLIENT_NODE_UPDATE_INFO uint32_t change_mask, uint32_t n_params, const struct spa_pod **params, const struct spa_node_info *info)
	Update the node ports and properties. More...
int(*	pw_client_node_methods::port_update )(void *object, enum spa_direction direction, uint32_t port_id, #define PW_CLIENT_NODE_PORT_UPDATE_PARAMS #define PW_CLIENT_NODE_PORT_UPDATE_INFO uint32_t change_mask, uint32_t n_params, const struct spa_pod **params, const struct spa_port_info *info)
	Update a node port. More...

Detailed Description

Client node interface.

Macro Definition Documentation

PW_TYPE_INTERFACE_ClientNode

#define PW_TYPE_INTERFACE_ClientNode   PW_TYPE_INFO_INTERFACE_BASE "ClientNode"

PW_VERSION_CLIENT_NODE

#define PW_VERSION_CLIENT_NODE   4

PW_EXTENSION_MODULE_CLIENT_NODE

#define PW_EXTENSION_MODULE_CLIENT_NODE   PIPEWIRE_MODULE_PREFIX "module-client-node"

PW_CLIENT_NODE_EVENT_TRANSPORT

#define PW_CLIENT_NODE_EVENT_TRANSPORT   0

PW_CLIENT_NODE_EVENT_SET_PARAM

#define PW_CLIENT_NODE_EVENT_SET_PARAM   1

PW_CLIENT_NODE_EVENT_SET_IO

#define PW_CLIENT_NODE_EVENT_SET_IO   2

PW_CLIENT_NODE_EVENT_EVENT

#define PW_CLIENT_NODE_EVENT_EVENT   3

PW_CLIENT_NODE_EVENT_COMMAND

#define PW_CLIENT_NODE_EVENT_COMMAND   4

PW_CLIENT_NODE_EVENT_ADD_PORT

#define PW_CLIENT_NODE_EVENT_ADD_PORT   5

PW_CLIENT_NODE_EVENT_REMOVE_PORT

#define PW_CLIENT_NODE_EVENT_REMOVE_PORT   6

PW_CLIENT_NODE_EVENT_PORT_SET_PARAM

#define PW_CLIENT_NODE_EVENT_PORT_SET_PARAM   7

PW_CLIENT_NODE_EVENT_PORT_USE_BUFFERS

#define PW_CLIENT_NODE_EVENT_PORT_USE_BUFFERS   8

PW_CLIENT_NODE_EVENT_PORT_SET_IO

#define PW_CLIENT_NODE_EVENT_PORT_SET_IO   9

PW_CLIENT_NODE_EVENT_SET_ACTIVATION

#define PW_CLIENT_NODE_EVENT_SET_ACTIVATION   10

PW_CLIENT_NODE_EVENT_PORT_SET_MIX_INFO

#define PW_CLIENT_NODE_EVENT_PORT_SET_MIX_INFO   11

PW_CLIENT_NODE_EVENT_NUM

#define PW_CLIENT_NODE_EVENT_NUM   12

PW_VERSION_CLIENT_NODE_EVENTS

#define PW_VERSION_CLIENT_NODE_EVENTS   1

PW_CLIENT_NODE_METHOD_ADD_LISTENER

#define PW_CLIENT_NODE_METHOD_ADD_LISTENER   0

PW_CLIENT_NODE_METHOD_GET_NODE

#define PW_CLIENT_NODE_METHOD_GET_NODE   1

PW_CLIENT_NODE_METHOD_UPDATE

#define PW_CLIENT_NODE_METHOD_UPDATE   2

PW_CLIENT_NODE_METHOD_PORT_UPDATE

#define PW_CLIENT_NODE_METHOD_PORT_UPDATE   3

PW_CLIENT_NODE_METHOD_SET_ACTIVE

#define PW_CLIENT_NODE_METHOD_SET_ACTIVE   4

PW_CLIENT_NODE_METHOD_EVENT

#define PW_CLIENT_NODE_METHOD_EVENT   5

PW_CLIENT_NODE_METHOD_PORT_BUFFERS

#define PW_CLIENT_NODE_METHOD_PORT_BUFFERS   6

PW_CLIENT_NODE_METHOD_NUM

#define PW_CLIENT_NODE_METHOD_NUM   7

PW_VERSION_CLIENT_NODE_METHODS

#define PW_VERSION_CLIENT_NODE_METHODS   0

pw_client_node_method

#define pw_client_node_method	(		o,
			method,
			version,
			...
	)

pw_client_node_add_listener

#define pw_client_node_add_listener	(		c,
			...
	)		pw_client_node_method(c,add_listener,0,__VA_ARGS__)

See also

pw_client_node_methods.add_listener

pw_client_node_update

#define pw_client_node_update	(		c,
			...
	)		pw_client_node_method(c,update,0,__VA_ARGS__)

Update the node ports and properties.

Update the maximum number of ports and the params of the client node.

Parameters

change_mask	bitfield with changed parameters
max_input_ports	new max input ports
max_output_ports	new max output ports
params	new params

See also

pw_client_node_methods.update

pw_client_node_port_update

#define pw_client_node_port_update	(		c,
			...
	)		pw_client_node_method(c,port_update,0,__VA_ARGS__)

Update a node port.

Update the information of one port of a node.

Parameters

direction	the direction of the port
port_id	the port id to update
change_mask	a bitfield of changed items
n_params	number of port parameters
params	array of port parameters
info	port information

See also

pw_client_node_methods.port_update

pw_client_node_set_active

#define pw_client_node_set_active	(		c,
			...
	)		pw_client_node_method(c,set_active,0,__VA_ARGS__)

Activate or deactivate the node.

See also

pw_client_node_methods.set_active

pw_client_node_event

#define pw_client_node_event	(		c,
			...
	)		pw_client_node_method(c,event,0,__VA_ARGS__)

Send an event to the node.

Parameters

event

the event to send

See also

pw_client_node_methods.event

pw_client_node_port_buffers

#define pw_client_node_port_buffers	(		c,
			...
	)		pw_client_node_method(c,port_buffers,0,__VA_ARGS__)

Send allocated buffers.

See also

pw_client_node_methods.port_buffers

Function Documentation

pw_client_node_get_node()

static struct pw_node* pw_client_node_get_node ( struct pw_client_node *  p, uint32_t  version, size_t  user_data_size  )

inlinestatic

Variable Documentation

update

int(* pw_client_node_methods::update) (void *object, #define PW_CLIENT_NODE_UPDATE_PARAMS #define PW_CLIENT_NODE_UPDATE_INFO uint32_t change_mask, uint32_t n_params, const struct spa_pod **params, const struct spa_node_info *info)

Update the node ports and properties.

Update the maximum number of ports and the params of the client node.

Parameters

change_mask	bitfield with changed parameters
max_input_ports	new max input ports
max_output_ports	new max output ports
params	new params

port_update

int(* pw_client_node_methods::port_update) (void *object, enum spa_direction direction, uint32_t port_id, #define PW_CLIENT_NODE_PORT_UPDATE_PARAMS #define PW_CLIENT_NODE_PORT_UPDATE_INFO uint32_t change_mask, uint32_t n_params, const struct spa_pod **params, const struct spa_port_info *info)

Update a node port.

Update the information of one port of a node.

Parameters

direction	the direction of the port
port_id	the port id to update
change_mask	a bitfield of changed items
n_params	number of port parameters
params	array of port parameters
info	port information