PipeWire 1.2.8
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node.h File Reference

spa/node/node.h More...

Go to the source code of this file.

Data Structures

struct  spa_node
struct  spa_node_info
 Node information structure. More...
struct  spa_port_info
 Port information structure. More...
struct  spa_result_node_error
 an error result More...
struct  spa_result_node_params
 the result of enum_params or port_enum_params. More...
struct  spa_node_events
 events from the spa_node. More...
struct  spa_node_callbacks
 Node callbacks. More...
struct  spa_node_methods
 Node methods. More...

Macros

#define SPA_TYPE_INTERFACE_Node   SPA_TYPE_INFO_INTERFACE_BASE "Node"
#define SPA_VERSION_NODE   0
#define SPA_NODE_CHANGE_MASK_FLAGS   (1u<<0)
#define SPA_NODE_CHANGE_MASK_PROPS   (1u<<1)
#define SPA_NODE_CHANGE_MASK_PARAMS   (1u<<2)
#define SPA_NODE_FLAG_RT   (1u<<0)
 node can do real-time processing
#define SPA_NODE_FLAG_IN_DYNAMIC_PORTS   (1u<<1)
 input ports can be added/removed
#define SPA_NODE_FLAG_OUT_DYNAMIC_PORTS   (1u<<2)
 output ports can be added/removed
#define SPA_NODE_FLAG_IN_PORT_CONFIG   (1u<<3)
 input ports can be reconfigured with PortConfig parameter
#define SPA_NODE_FLAG_OUT_PORT_CONFIG   (1u<<4)
 output ports can be reconfigured with PortConfig parameter
#define SPA_NODE_FLAG_NEED_CONFIGURE   (1u<<5)
 node needs configuration before it can be started.
#define SPA_NODE_FLAG_ASYNC   (1u<<6)
 the process function might not immediately produce or consume data but might offload the work to a worker thread.
#define SPA_NODE_INFO_INIT()
#define SPA_PORT_CHANGE_MASK_FLAGS   (1u<<0)
#define SPA_PORT_CHANGE_MASK_RATE   (1u<<1)
#define SPA_PORT_CHANGE_MASK_PROPS   (1u<<2)
#define SPA_PORT_CHANGE_MASK_PARAMS   (1u<<3)
#define SPA_PORT_FLAG_REMOVABLE   (1u<<0)
 port can be removed
#define SPA_PORT_FLAG_OPTIONAL   (1u<<1)
 processing on port is optional
#define SPA_PORT_FLAG_CAN_ALLOC_BUFFERS   (1u<<2)
 the port can allocate buffer data
#define SPA_PORT_FLAG_IN_PLACE   (1u<<3)
 the port can process data in-place and will need a writable input buffer
#define SPA_PORT_FLAG_NO_REF   (1u<<4)
 the port does not keep a ref on the buffer.
#define SPA_PORT_FLAG_LIVE   (1u<<5)
 output buffers from this port are timestamped against a live clock.
#define SPA_PORT_FLAG_PHYSICAL   (1u<<6)
 connects to some device
#define SPA_PORT_FLAG_TERMINAL   (1u<<7)
 data was not created from this port or will not be made available on another port
#define SPA_PORT_FLAG_DYNAMIC_DATA   (1u<<8)
 data pointer on buffers can be changed.
#define SPA_PORT_INFO_INIT()
#define SPA_RESULT_TYPE_NODE_ERROR   1
#define SPA_RESULT_TYPE_NODE_PARAMS   2
#define SPA_NODE_EVENT_INFO   0
#define SPA_NODE_EVENT_PORT_INFO   1
#define SPA_NODE_EVENT_RESULT   2
#define SPA_NODE_EVENT_EVENT   3
#define SPA_NODE_EVENT_NUM   4
#define SPA_VERSION_NODE_EVENTS   0
#define SPA_NODE_CALLBACK_READY   0
#define SPA_NODE_CALLBACK_REUSE_BUFFER   1
#define SPA_NODE_CALLBACK_XRUN   2
#define SPA_NODE_CALLBACK_NUM   3
#define SPA_VERSION_NODE_CALLBACKS   0
#define SPA_NODE_PARAM_FLAG_TEST_ONLY   (1 << 0)
 flags that can be passed to set_param and port_set_param functions
#define SPA_NODE_PARAM_FLAG_FIXATE   (1 << 1)
 Fixate the non-optional unset fields.
#define SPA_NODE_PARAM_FLAG_NEAREST   (1 << 2)
 Allow set fields to be rounded to the nearest allowed field value.
#define SPA_NODE_BUFFERS_FLAG_ALLOC   (1 << 0)
 flags to pass to the use_buffers functions
#define SPA_NODE_METHOD_ADD_LISTENER   0
#define SPA_NODE_METHOD_SET_CALLBACKS   1
#define SPA_NODE_METHOD_SYNC   2
#define SPA_NODE_METHOD_ENUM_PARAMS   3
#define SPA_NODE_METHOD_SET_PARAM   4
#define SPA_NODE_METHOD_SET_IO   5
#define SPA_NODE_METHOD_SEND_COMMAND   6
#define SPA_NODE_METHOD_ADD_PORT   7
#define SPA_NODE_METHOD_REMOVE_PORT   8
#define SPA_NODE_METHOD_PORT_ENUM_PARAMS   9
#define SPA_NODE_METHOD_PORT_SET_PARAM   10
#define SPA_NODE_METHOD_PORT_USE_BUFFERS   11
#define SPA_NODE_METHOD_PORT_SET_IO   12
#define SPA_NODE_METHOD_PORT_REUSE_BUFFER   13
#define SPA_NODE_METHOD_PROCESS   14
#define SPA_NODE_METHOD_NUM   15
#define SPA_VERSION_NODE_METHODS   0
#define spa_node_method(o, method, version, ...)
#define spa_node_method_fast(o, method, version, ...)
#define spa_node_add_listener(n, ...)
 Adds an event listener on node.
#define spa_node_set_callbacks(n, ...)
 Set callbacks to on node.
#define spa_node_sync(n, ...)
 Perform a sync operation.
#define spa_node_enum_params(n, ...)
 Enumerate the parameters of a node.
#define spa_node_set_param(n, ...)
 Set the configurable parameter in node.
#define spa_node_set_io(n, ...)
 Configure the given memory area with id on node.
#define spa_node_send_command(n, ...)
 Send a command to a node.
#define spa_node_add_port(n, ...)
 Make a new port with port_id.
#define spa_node_remove_port(n, ...)
 Remove a port with port_id.
#define spa_node_port_enum_params(n, ...)
 Enumerate all possible parameters of id on port_id of node that are compatible with filter.
#define spa_node_port_set_param(n, ...)
 Set a parameter on port_id of node.
#define spa_node_port_use_buffers(n, ...)
 Tell the port to use the given buffers.
#define spa_node_port_set_io(n, ...)
 Configure the given memory area with id on port_id.
#define spa_node_port_reuse_buffer(n, ...)
 Tell an output port to reuse a buffer.
#define spa_node_port_reuse_buffer_fast(n, ...)
#define spa_node_process(n)
 Process the node.
#define spa_node_process_fast(n)

Detailed Description