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move things around
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Wim Taymans
parent
847cef83b6
commit
d1655196c3
130 changed files with 363 additions and 335 deletions
179
src/pipewire/node.h
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179
src/pipewire/node.h
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/* PipeWire
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* Copyright (C) 2015 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __PIPEWIRE_NODE_H__
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#define __PIPEWIRE_NODE_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define PIPEWIRE_TYPE__Node "PipeWire:Object:Node"
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#define PIPEWIRE_TYPE_NODE_BASE PIPEWIRE_TYPE__Node ":"
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#include <spa/clock.h>
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#include <spa/node.h>
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#include <pipewire/mem.h>
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#include <pipewire/introspect.h>
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#include <pipewire/transport.h>
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#include <pipewire/core.h>
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#include <pipewire/port.h>
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#include <pipewire/link.h>
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#include <pipewire/client.h>
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#include <pipewire/data-loop.h>
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struct pw_node;
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#define PW_VERSION_NODE_IMPLEMENTATION 0
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struct pw_node_implementation {
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uint32_t version;
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int (*get_props) (struct pw_node *node, struct spa_props **props);
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int (*set_props) (struct pw_node *node, const struct spa_props *props);
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int (*send_command) (struct pw_node *node,
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struct spa_command *command);
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struct pw_port* (*add_port) (struct pw_node *node,
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enum pw_direction direction,
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uint32_t port_id);
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int (*process_input) (struct pw_node *node);
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int (*process_output) (struct pw_node *node);
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};
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/** \page page_node Node
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*
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* \section page_node_overview Overview
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*
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* The node object processes data. The node has a list of
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* input and output ports (\ref page_port) on which it
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* will receive and send out buffers respectively.
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*
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* The node wraps an SPA node object.
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*/
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/** \class pw_node
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*
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* PipeWire node class.
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*/
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struct pw_node {
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struct pw_core *core; /**< core object */
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struct spa_list link; /**< link in core node_list */
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struct pw_global *global; /**< global for this node */
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struct pw_resource *owner; /**< owner resource if any */
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struct pw_properties *properties; /**< properties of the node */
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struct pw_node_info info; /**< introspectable node info */
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/** Emited when a state change is started */
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PW_SIGNAL(state_request, (struct pw_listener *listener,
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struct pw_node *object, enum pw_node_state state));
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/** Emited when a stat change is completed */
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PW_SIGNAL(state_changed, (struct pw_listener *listener,
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struct pw_node *object,
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enum pw_node_state old, enum pw_node_state state));
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bool live; /**< if the node is live */
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struct spa_clock *clock; /**< handle to SPA clock if any */
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struct spa_list resource_list; /**< list of resources for this node */
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/** Implementation of core node functions */
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const struct pw_node_implementation *implementation;
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/** Emited when the node is initialized */
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PW_SIGNAL(initialized, (struct pw_listener *listener, struct pw_node *object));
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struct spa_list input_ports; /**< list of input ports */
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struct pw_map input_port_map; /**< map from port_id to port */
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uint32_t n_used_input_links; /**< number of active input links */
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uint32_t idle_used_input_links; /**< number of active input to be idle */
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struct spa_list output_ports; /**< list of output ports */
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struct pw_map output_port_map; /**< map from port_id to port */
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uint32_t n_used_output_links; /**< number of active output links */
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uint32_t idle_used_output_links; /**< number of active output to be idle */
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/** Emited when a new port is added */
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PW_SIGNAL(port_added, (struct pw_listener *listener,
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struct pw_node *node, struct pw_port *port));
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/** Emited when a port is removed */
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PW_SIGNAL(port_removed, (struct pw_listener *listener,
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struct pw_node *node, struct pw_port *port));
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/** Emited when the node is destroyed */
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PW_SIGNAL(destroy_signal, (struct pw_listener *listener, struct pw_node *object));
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/** Emited when the node is free */
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PW_SIGNAL(free_signal, (struct pw_listener *listener, struct pw_node *object));
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/** an async operation on the node completed */
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PW_SIGNAL(async_complete, (struct pw_listener *listener,
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struct pw_node *node, uint32_t seq, int res));
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/** an event is emited */
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PW_SIGNAL(event, (struct pw_listener *listener,
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struct pw_node *node, struct spa_event *event));
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struct pw_loop *data_loop; /**< the data loop for this node */
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struct {
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struct spa_graph_scheduler *sched;
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struct spa_graph_node node;
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} rt;
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void *user_data; /**< extra user data */
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pw_destroy_t destroy; /**< function to clean up the object */
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};
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/** Create a new node \memberof pw_node */
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struct pw_node *
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pw_node_new(struct pw_core *core, /**< the core */
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struct pw_resource *owner, /**< optional owner */
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const char *name, /**< node name */
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struct pw_properties *properties, /**< extra properties */
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size_t user_data_size /**< user data size */);
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/** Complete initialization of the node */
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void pw_node_export(struct pw_node *node);
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/** Destroy a node */
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void pw_node_destroy(struct pw_node *node);
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/** Get a free unused port from the node */
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struct pw_port *
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pw_node_get_free_port(struct pw_node *node, enum pw_direction direction);
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/** Change the state of the node */
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int pw_node_set_state(struct pw_node *node, enum pw_node_state state);
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/** Update the state of the node, mostly used by node implementations */
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void pw_node_update_state(struct pw_node *node, enum pw_node_state state, char *error);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __PIPEWIRE_NODE_H__ */
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