PipeWire 1.2.6

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client-node.h
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1/* PipeWire */
2/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
3/* SPDX-License-Identifier: MIT */
4
5#ifndef PIPEWIRE_EXT_CLIENT_NODE_H
6#define PIPEWIRE_EXT_CLIENT_NODE_H
7
8#ifdef __cplusplus
9 extern "C" {
10#endif
11
12#include <spa/utils/defs.h>
13#include <spa/param/param.h>
14
23#define PW_TYPE_INTERFACE_ClientNode PW_TYPE_INFO_INTERFACE_BASE "ClientNode"
24
25/*
26 * version 4: new port_set_mix_info event added
27 * version 5: driver nodes are scheduled on the client
28 * version 6: client needs to set activation INACTIVE -> FINISHED
29 */
30#define PW_VERSION_CLIENT_NODE 6
31 struct pw_client_node;
32
33#define PW_EXTENSION_MODULE_CLIENT_NODE PIPEWIRE_MODULE_PREFIX "module-client-node"
34
36 struct pw_client_node_buffer {
37 uint32_t mem_id;
38 uint32_t offset;
39 uint32_t size;
40 struct spa_buffer *buffer;
41};
42
43#define PW_CLIENT_NODE_EVENT_TRANSPORT 0
44#define PW_CLIENT_NODE_EVENT_SET_PARAM 1
45#define PW_CLIENT_NODE_EVENT_SET_IO 2
46#define PW_CLIENT_NODE_EVENT_EVENT 3
47#define PW_CLIENT_NODE_EVENT_COMMAND 4
48#define PW_CLIENT_NODE_EVENT_ADD_PORT 5
49#define PW_CLIENT_NODE_EVENT_REMOVE_PORT 6
50#define PW_CLIENT_NODE_EVENT_PORT_SET_PARAM 7
51#define PW_CLIENT_NODE_EVENT_PORT_USE_BUFFERS 8
52#define PW_CLIENT_NODE_EVENT_PORT_SET_IO 9
53#define PW_CLIENT_NODE_EVENT_SET_ACTIVATION 10
54#define PW_CLIENT_NODE_EVENT_PORT_SET_MIX_INFO 11
55#define PW_CLIENT_NODE_EVENT_NUM 12
56
58 struct pw_client_node_events {
59#define PW_VERSION_CLIENT_NODE_EVENTS 1
60 uint32_t version;
72 int (*transport) (void *data,
73 int readfd,
74 int writefd,
75 uint32_t mem_id,
76 uint32_t offset,
77 uint32_t size);
88 int (*set_param) (void *data,
89 uint32_t id, uint32_t flags,
90 const struct spa_pod *param);
102 int (*set_io) (void *data,
103 uint32_t id,
104 uint32_t mem_id,
105 uint32_t offset,
106 uint32_t size);
110 int (*event) (void *data, const struct spa_event *event);
116 int (*command) (void *data, const struct spa_command *command);
127 int (*add_port) (void *data,
128 enum spa_direction direction,
129 uint32_t port_id,
130 const struct spa_dict *props);
137 int (*remove_port) (void *data,
138 enum spa_direction direction,
139 uint32_t port_id);
149 int (*port_set_param) (void *data,
150 enum spa_direction direction,
151 uint32_t port_id,
152 uint32_t id, uint32_t flags,
153 const struct spa_pod *param);
163 int (*port_use_buffers) (void *data,
164 enum spa_direction direction,
165 uint32_t port_id,
166 uint32_t mix_id,
167 uint32_t flags,
168 uint32_t n_buffers,
169 struct pw_client_node_buffer *buffers);
181 int (*port_set_io) (void *data,
182 enum spa_direction direction,
183 uint32_t port_id,
184 uint32_t mix_id,
185 uint32_t id,
186 uint32_t mem_id,
187 uint32_t offset,
188 uint32_t size);
189
200 int (*set_activation) (void *data,
201 uint32_t node_id,
202 int signalfd,
203 uint32_t mem_id,
204 uint32_t offset,
205 uint32_t size);
206
218 int (*port_set_mix_info) (void *data,
219 enum spa_direction direction,
220 uint32_t port_id,
221 uint32_t mix_id,
222 uint32_t peer_id,
223 const struct spa_dict *props);
224};
225
226#define PW_CLIENT_NODE_METHOD_ADD_LISTENER 0
227#define PW_CLIENT_NODE_METHOD_GET_NODE 1
228#define PW_CLIENT_NODE_METHOD_UPDATE 2
229#define PW_CLIENT_NODE_METHOD_PORT_UPDATE 3
230#define PW_CLIENT_NODE_METHOD_SET_ACTIVE 4
231#define PW_CLIENT_NODE_METHOD_EVENT 5
232#define PW_CLIENT_NODE_METHOD_PORT_BUFFERS 6
233#define PW_CLIENT_NODE_METHOD_NUM 7
234
236 struct pw_client_node_methods {
237#define PW_VERSION_CLIENT_NODE_METHODS 0
238 uint32_t version;
239
240 int (*add_listener) (void *object,
241 struct spa_hook *listener,
242 const struct pw_client_node_events *events,
243 void *data);
246 struct pw_node * (*get_node) (void *object, uint32_t version, size_t user_data_size);
257 int (*update) (void *object,
258#define PW_CLIENT_NODE_UPDATE_PARAMS (1 << 0)
259#define PW_CLIENT_NODE_UPDATE_INFO (1 << 1)
260 uint32_t change_mask,
261 uint32_t n_params,
262 const struct spa_pod **params,
263 const struct spa_node_info *info);
264
276 int (*port_update) (void *object,
277 enum spa_direction direction,
278 uint32_t port_id,
279#define PW_CLIENT_NODE_PORT_UPDATE_PARAMS (1 << 0)
280#define PW_CLIENT_NODE_PORT_UPDATE_INFO (1 << 1)
281 uint32_t change_mask,
282 uint32_t n_params,
283 const struct spa_pod **params,
284 const struct spa_port_info *info);
288 int (*set_active) (void *object, bool active);
293 int (*event) (void *object, const struct spa_event *event);
294
298 int (*port_buffers) (void *object,
299 enum spa_direction direction,
300 uint32_t port_id,
301 uint32_t mix_id,
302 uint32_t n_buffers,
303 struct spa_buffer **buffers);
304};
305
306
307#define pw_client_node_method(o,method,version,...) \
308({ \
309 int _res = -ENOTSUP; \
310 spa_interface_call_res((struct spa_interface*)o, \
311 struct pw_client_node_methods, _res, \
312 method, version, ##__VA_ARGS__); \
313 _res; \
314})
315
316#define pw_client_node_add_listener(c,...) pw_client_node_method(c,add_listener,0,__VA_ARGS__)
317
318 static inline struct pw_node *
319 pw_client_node_get_node(struct pw_client_node *p, uint32_t version, size_t user_data_size)
320{
321 struct pw_node *res = NULL;
322 spa_interface_call_res((struct spa_interface*)p,
323 struct pw_client_node_methods, res,
324 get_node, 0, version, user_data_size);
325 return res;
326}
327
328#define pw_client_node_update(c,...) pw_client_node_method(c,update,0,__VA_ARGS__)
329#define pw_client_node_port_update(c,...) pw_client_node_method(c,port_update,0,__VA_ARGS__)
330#define pw_client_node_set_active(c,...) pw_client_node_method(c,set_active,0,__VA_ARGS__)
331#define pw_client_node_event(c,...) pw_client_node_method(c,event,0,__VA_ARGS__)
332#define pw_client_node_port_buffers(c,...) pw_client_node_method(c,port_buffers,0,__VA_ARGS__)
333
338#ifdef __cplusplus
339} /* extern "C" */
340#endif
341
342#endif /* PIPEWIRE_EXT_CLIENT_NODE_H */
defs.h
spa/utils/defs.h
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)
Definition client-node.h:356
pw_client_node_methods::update
int(* 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.
Definition client-node.h:288
pw_client_node_methods::port_update
int(* 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.
Definition client-node.h:309
spa_interface_call_res
#define spa_interface_call_res(iface, method_type, res, method, vers,...)
Invoke method named method in the callbacks on the given interface object.
Definition hook.h:251
spa_direction
spa_direction
Definition defs.h:106
param.h
spa/param/param.h
pw_client_node_buffer
information about a buffer
Definition client-node.h:44
pw_client_node_buffer::size
uint32_t size
size in memory
Definition client-node.h:47
pw_client_node_buffer::mem_id
uint32_t mem_id
the memory id for the metadata
Definition client-node.h:45
pw_client_node_buffer::offset
uint32_t offset
offset in memory
Definition client-node.h:46
pw_client_node_buffer::buffer
struct spa_buffer * buffer
buffer describing metadata and buffer memory
Definition client-node.h:48
pw_client_node_events
Client Node events
Definition client-node.h:79
pw_client_node_events::port_set_io
int(* port_set_io)(void *data, enum spa_direction direction, uint32_t port_id, uint32_t mix_id, uint32_t id, uint32_t mem_id, uint32_t offset, uint32_t size)
Configure the io area with id of port_id.
Definition client-node.h:203
pw_client_node_events::port_use_buffers
int(* port_use_buffers)(void *data, enum spa_direction direction, uint32_t port_id, uint32_t mix_id, uint32_t flags, uint32_t n_buffers, struct pw_client_node_buffer *buffers)
Notify the port of buffers.
Definition client-node.h:185
pw_client_node_events::remove_port
int(* remove_port)(void *data, enum spa_direction direction, uint32_t port_id)
A port was removed from the node.
Definition client-node.h:159
pw_client_node_events::version
uint32_t version
Definition client-node.h:82
pw_client_node_events::port_set_param
int(* port_set_param)(void *data, enum spa_direction direction, uint32_t port_id, uint32_t id, uint32_t flags, const struct spa_pod *param)
A parameter was configured on the port.
Definition client-node.h:171
pw_client_node_events::event
int(* event)(void *data, const struct spa_event *event)
Receive an event from the client node.
Definition client-node.h:132
pw_client_node_events::set_activation
int(* set_activation)(void *data, uint32_t node_id, int signalfd, uint32_t mem_id, uint32_t offset, uint32_t size)
Notify the activation record of the next node to trigger.
Definition client-node.h:222
pw_client_node_events::port_set_mix_info
int(* port_set_mix_info)(void *data, enum spa_direction direction, uint32_t port_id, uint32_t mix_id, uint32_t peer_id, const struct spa_dict *props)
Notify about the peer of mix_id.
Definition client-node.h:240
pw_client_node_events::command
int(* command)(void *data, const struct spa_command *command)
Notify of a new node command.
Definition client-node.h:138
pw_client_node_events::set_io
int(* set_io)(void *data, uint32_t id, uint32_t mem_id, uint32_t offset, uint32_t size)
Configure an IO area for the client.
Definition client-node.h:124
pw_client_node_events::add_port
int(* add_port)(void *data, enum spa_direction direction, uint32_t port_id, const struct spa_dict *props)
A new port was added to the node.
Definition client-node.h:149
pw_client_node_events::set_param
int(* set_param)(void *data, uint32_t id, uint32_t flags, const struct spa_pod *param)
Notify of a property change.
Definition client-node.h:110
pw_client_node_events::transport
int(* transport)(void *data, int readfd, int writefd, uint32_t mem_id, uint32_t offset, uint32_t size)
Notify of a new transport area.
Definition client-node.h:94
pw_client_node_methods
Client Node methods
Definition client-node.h:266
pw_client_node_methods::event
int(* event)(void *object, const struct spa_event *event)
Send an event to the node.
Definition client-node.h:328
pw_client_node_methods::add_listener
int(* add_listener)(void *object, struct spa_hook *listener, const struct pw_client_node_events *events, void *data)
Definition client-node.h:271
pw_client_node_methods::port_buffers
int(* port_buffers)(void *object, enum spa_direction direction, uint32_t port_id, uint32_t mix_id, uint32_t n_buffers, struct spa_buffer **buffers)
Send allocated buffers.
Definition client-node.h:333
pw_client_node_methods::version
uint32_t version
Definition client-node.h:269
pw_client_node_methods::set_active
int(* set_active)(void *object, bool active)
Activate or deactivate the node.
Definition client-node.h:323
pw_client_node
pw_node
spa_buffer
A Buffer.
Definition buffer.h:100
spa_command
Definition command.h:29
spa_dict
Definition dict.h:39
spa_event
Definition event.h:28
spa_hook
A hook, contains the structure with functions and the data passed to the functions.
Definition hook.h:350
spa_interface
Definition hook.h:138
spa_node_info
Node information structure.
Definition node.h:48
spa_pod
Definition pod.h:43
spa_port_info
Port information structure.
Definition node.h:93