31 #define SPA_TYPE_INTERFACE_Node SPA_TYPE_INFO_INTERFACE_BASE "Node"
33 #define SPA_VERSION_NODE 0
44 #define SPA_NODE_CHANGE_MASK_FLAGS (1u<<0)
45 #define SPA_NODE_CHANGE_MASK_PROPS (1u<<1)
46 #define SPA_NODE_CHANGE_MASK_PARAMS (1u<<2)
49 #define SPA_NODE_FLAG_RT (1u<<0)
50 #define SPA_NODE_FLAG_IN_DYNAMIC_PORTS (1u<<1)
51 #define SPA_NODE_FLAG_OUT_DYNAMIC_PORTS (1u<<2)
52 #define SPA_NODE_FLAG_IN_PORT_CONFIG (1u<<3)
54 #define SPA_NODE_FLAG_OUT_PORT_CONFIG (1u<<4)
56 #define SPA_NODE_FLAG_NEED_CONFIGURE (1u<<5)
58 #define SPA_NODE_FLAG_ASYNC (1u<<6)
68 #define SPA_NODE_INFO_INIT() ((struct spa_node_info) { 0, })
76 #define SPA_PORT_CHANGE_MASK_FLAGS (1u<<0)
77 #define SPA_PORT_CHANGE_MASK_RATE (1u<<1)
78 #define SPA_PORT_CHANGE_MASK_PROPS (1u<<2)
79 #define SPA_PORT_CHANGE_MASK_PARAMS (1u<<3)
82 #define SPA_PORT_FLAG_REMOVABLE (1u<<0)
83 #define SPA_PORT_FLAG_OPTIONAL (1u<<1)
84 #define SPA_PORT_FLAG_CAN_ALLOC_BUFFERS (1u<<2)
85 #define SPA_PORT_FLAG_IN_PLACE (1u<<3)
87 #define SPA_PORT_FLAG_NO_REF (1u<<4)
91 #define SPA_PORT_FLAG_LIVE (1u<<5)
93 #define SPA_PORT_FLAG_PHYSICAL (1u<<6)
94 #define SPA_PORT_FLAG_TERMINAL (1u<<7)
97 #define SPA_PORT_FLAG_DYNAMIC_DATA (1u<<8)
107 #define SPA_PORT_INFO_INIT() ((struct spa_port_info) { 0, })
109 #define SPA_RESULT_TYPE_NODE_ERROR 1
110 #define SPA_RESULT_TYPE_NODE_PARAMS 2
125 #define SPA_NODE_EVENT_INFO 0
126 #define SPA_NODE_EVENT_PORT_INFO 1
127 #define SPA_NODE_EVENT_RESULT 2
128 #define SPA_NODE_EVENT_EVENT 3
129 #define SPA_NODE_EVENT_NUM 4
138 #define SPA_VERSION_NODE_EVENTS 0
165 void (*
result) (
void *data,
int seq,
int res,
178 #define SPA_NODE_CALLBACK_READY 0
179 #define SPA_NODE_CALLBACK_REUSE_BUFFER 1
180 #define SPA_NODE_CALLBACK_XRUN 2
181 #define SPA_NODE_CALLBACK_NUM 3
189 #define SPA_VERSION_NODE_CALLBACKS 0
199 int (*
ready) (
void *data,
int state);
225 int (*
xrun) (
void *data, uint64_t trigger, uint64_t delay,
231 #define SPA_NODE_PARAM_FLAG_TEST_ONLY (1 << 0)
232 #define SPA_NODE_PARAM_FLAG_FIXATE (1 << 1)
233 #define SPA_NODE_PARAM_FLAG_NEAREST (1 << 2)
237 #define SPA_NODE_BUFFERS_FLAG_ALLOC (1 << 0)
242 #define SPA_NODE_METHOD_ADD_LISTENER 0
243 #define SPA_NODE_METHOD_SET_CALLBACKS 1
244 #define SPA_NODE_METHOD_SYNC 2
245 #define SPA_NODE_METHOD_ENUM_PARAMS 3
246 #define SPA_NODE_METHOD_SET_PARAM 4
247 #define SPA_NODE_METHOD_SET_IO 5
248 #define SPA_NODE_METHOD_SEND_COMMAND 6
249 #define SPA_NODE_METHOD_ADD_PORT 7
250 #define SPA_NODE_METHOD_REMOVE_PORT 8
251 #define SPA_NODE_METHOD_PORT_ENUM_PARAMS 9
252 #define SPA_NODE_METHOD_PORT_SET_PARAM 10
253 #define SPA_NODE_METHOD_PORT_USE_BUFFERS 11
254 #define SPA_NODE_METHOD_PORT_SET_IO 12
255 #define SPA_NODE_METHOD_PORT_REUSE_BUFFER 13
256 #define SPA_NODE_METHOD_PROCESS 14
257 #define SPA_NODE_METHOD_NUM 15
265 #define SPA_VERSION_NODE_METHODS 0
317 int (*
sync) (
void *object,
int seq);
351 uint32_t id, uint32_t start, uint32_t max,
376 uint32_t id, uint32_t flags,
397 int (*
set_io) (
void *object,
398 uint32_t id,
void *data,
size_t size);
481 uint32_t id, uint32_t start, uint32_t max,
510 uint32_t id, uint32_t flags,
584 void *data,
size_t size);
625 #define spa_node_method(o,method,version,...) \
627 int _res = -ENOTSUP; \
628 struct spa_node *_n = o; \
629 spa_interface_call_res(&_n->iface, \
630 struct spa_node_methods, _res, \
631 method, version, ##__VA_ARGS__); \
635 #define spa_node_add_listener(n,...) spa_node_method(n, add_listener, 0, __VA_ARGS__)
636 #define spa_node_set_callbacks(n,...) spa_node_method(n, set_callbacks, 0, __VA_ARGS__)
637 #define spa_node_sync(n,...) spa_node_method(n, sync, 0, __VA_ARGS__)
638 #define spa_node_enum_params(n,...) spa_node_method(n, enum_params, 0, __VA_ARGS__)
639 #define spa_node_set_param(n,...) spa_node_method(n, set_param, 0, __VA_ARGS__)
640 #define spa_node_set_io(n,...) spa_node_method(n, set_io, 0, __VA_ARGS__)
641 #define spa_node_send_command(n,...) spa_node_method(n, send_command, 0, __VA_ARGS__)
642 #define spa_node_add_port(n,...) spa_node_method(n, add_port, 0, __VA_ARGS__)
643 #define spa_node_remove_port(n,...) spa_node_method(n, remove_port, 0, __VA_ARGS__)
644 #define spa_node_port_enum_params(n,...) spa_node_method(n, port_enum_params, 0, __VA_ARGS__)
645 #define spa_node_port_set_param(n,...) spa_node_method(n, port_set_param, 0, __VA_ARGS__)
646 #define spa_node_port_use_buffers(n,...) spa_node_method(n, port_use_buffers, 0, __VA_ARGS__)
647 #define spa_node_port_set_io(n,...) spa_node_method(n, port_set_io, 0, __VA_ARGS__)
649 #define spa_node_port_reuse_buffer(n,...) spa_node_method(n, port_reuse_buffer, 0, __VA_ARGS__)
650 #define spa_node_process(n) spa_node_method(n, process, 0)
spa_direction
Definition: defs.h:92
A Buffer.
Definition: buffer/buffer.h:90
Definition: pod/command.h:29
Definition: utils/dict.h:39
Definition: pod/event.h:28
A hook, contains the structure with functions and the data passed to the functions.
Definition: hook.h:331
Node callbacks.
Definition: spa/include/spa/node/node.h:232
uint32_t version
Definition: spa/include/spa/node/node.h:235
int(* ready)(void *data, int state)
Definition: spa/include/spa/node/node.h:244
int(* reuse_buffer)(void *data, uint32_t port_id, uint32_t buffer_id)
Definition: spa/include/spa/node/node.h:256
int(* xrun)(void *data, uint64_t trigger, uint64_t delay, struct spa_pod *info)
Definition: spa/include/spa/node/node.h:270
events from the spa_node.
Definition: spa/include/spa/node/node.h:176
uint32_t version
version of this structure
Definition: spa/include/spa/node/node.h:179
void(* event)(void *data, const struct spa_event *event)
Definition: spa/include/spa/node/node.h:215
void(* result)(void *data, int seq, int res, uint32_t type, const void *result)
notify a result.
Definition: spa/include/spa/node/node.h:205
void(* info)(void *data, const struct spa_node_info *info)
Emitted when info changes.
Definition: spa/include/spa/node/node.h:182
void(* port_info)(void *data, enum spa_direction direction, uint32_t port, const struct spa_port_info *info)
Emitted when port info changes, NULL when port is removed.
Definition: spa/include/spa/node/node.h:185
Node information structure.
Definition: spa/include/spa/node/node.h:48
struct spa_param_info * params
parameter information
Definition: spa/include/spa/node/node.h:81
uint64_t flags
Definition: spa/include/spa/node/node.h:79
uint32_t n_params
number of items in params
Definition: spa/include/spa/node/node.h:82
uint32_t max_output_ports
Definition: spa/include/spa/node/node.h:50
uint64_t change_mask
Definition: spa/include/spa/node/node.h:57
uint32_t max_input_ports
Definition: spa/include/spa/node/node.h:49
Node methods.
Definition: spa/include/spa/node/node.h:327
int(* set_param)(void *object, uint32_t id, uint32_t flags, const struct spa_pod *param)
Set the configurable parameter in node.
Definition: spa/include/spa/node/node.h:441
int(* port_enum_params)(void *object, int seq, enum spa_direction direction, uint32_t port_id, uint32_t id, uint32_t start, uint32_t max, const struct spa_pod *filter)
Enumerate all possible parameters of id on port_id of node that are compatible with filter.
Definition: spa/include/spa/node/node.h:545
int(* port_set_io)(void *object, enum spa_direction direction, uint32_t port_id, uint32_t id, void *data, size_t size)
Configure the given memory area with id on port_id.
Definition: spa/include/spa/node/node.h:646
int(* process)(void *object)
Process the node.
Definition: spa/include/spa/node/node.h:688
int(* port_use_buffers)(void *object, enum spa_direction direction, uint32_t port_id, uint32_t flags, struct spa_buffer **buffers, uint32_t n_buffers)
Tell the port to use the given buffers.
Definition: spa/include/spa/node/node.h:619
int(* add_listener)(void *object, struct spa_hook *listener, const struct spa_node_events *events, void *data)
Adds an event listener on node.
Definition: spa/include/spa/node/node.h:348
int(* sync)(void *object, int seq)
Perform a sync operation.
Definition: spa/include/spa/node/node.h:383
int(* add_port)(void *object, enum spa_direction direction, uint32_t port_id, const struct spa_dict *props)
Make a new port with port_id.
Definition: spa/include/spa/node/node.h:498
int(* enum_params)(void *object, int seq, uint32_t id, uint32_t start, uint32_t max, const struct spa_pod *filter)
Enumerate the parameters of a node.
Definition: spa/include/spa/node/node.h:416
int(* set_callbacks)(void *object, const struct spa_node_callbacks *callbacks, void *data)
Set callbacks to on node.
Definition: spa/include/spa/node/node.h:365
uint32_t version
Definition: spa/include/spa/node/node.h:332
int(* set_io)(void *object, uint32_t id, void *data, size_t size)
Configure the given memory area with id on node.
Definition: spa/include/spa/node/node.h:463
int(* port_reuse_buffer)(void *object, uint32_t port_id, uint32_t buffer_id)
Tell an output port to reuse a buffer.
Definition: spa/include/spa/node/node.h:663
int(* remove_port)(void *object, enum spa_direction direction, uint32_t port_id)
Remove a port with port_id.
Definition: spa/include/spa/node/node.h:512
int(* send_command)(void *object, const struct spa_command *command)
Send a command to a node.
Definition: spa/include/spa/node/node.h:480
int(* port_set_param)(void *object, enum spa_direction direction, uint32_t port_id, uint32_t id, uint32_t flags, const struct spa_pod *param)
Set a parameter on port_id of node.
Definition: spa/include/spa/node/node.h:573
Definition: spa/include/spa/node/node.h:41
struct spa_interface iface
Definition: spa/include/spa/node/node.h:41
information about a parameter
Definition: param.h:50
uint32_t size
Definition: pod/pod.h:44
Port information structure.
Definition: spa/include/spa/node/node.h:93
uint64_t flags
port flags
Definition: spa/include/spa/node/node.h:131
struct spa_fraction rate
rate of sequence numbers on port
Definition: spa/include/spa/node/node.h:132
struct spa_param_info * params
parameter information
Definition: spa/include/spa/node/node.h:134
uint64_t change_mask
Definition: spa/include/spa/node/node.h:102
uint32_t n_params
number of items in params
Definition: spa/include/spa/node/node.h:135
an error result
Definition: spa/include/spa/node/node.h:147
const char * message
Definition: spa/include/spa/node/node.h:148
the result of enum_params or port_enum_params.
Definition: spa/include/spa/node/node.h:152
struct spa_pod * param
the result param
Definition: spa/include/spa/node/node.h:156
uint32_t next
next index of iteration
Definition: spa/include/spa/node/node.h:155
uint32_t index
index of parameter
Definition: spa/include/spa/node/node.h:154
uint32_t id
id of parameter
Definition: spa/include/spa/node/node.h:153