impl-node.h

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/* PipeWire */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */
 
#ifndef PIPEWIRE_IMPL_NODE_H
#define PIPEWIRE_IMPL_NODE_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct pw_impl_node;
struct pw_impl_port;
 
#include <spa/node/node.h>
#include <spa/node/event.h>
 
#include <pipewire/impl.h>
 
struct pw_impl_node_events {
#define PW_VERSION_IMPL_NODE_EVENTS     0
        uint32_t version;
 
        void (*destroy) (void *data);
        void (*free) (void *data);
        void (*initialized) (void *data);
 
        void (*port_init) (void *data, struct pw_impl_port *port);
        void (*port_added) (void *data, struct pw_impl_port *port);
        void (*port_removed) (void *data, struct pw_impl_port *port);
 
        void (*info_changed) (void *data, const struct pw_node_info *info);
        void (*port_info_changed) (void *data, struct pw_impl_port *port,
                        const struct pw_port_info *info);
        void (*active_changed) (void *data, bool active);
 
        void (*state_request) (void *data, enum pw_node_state state);
        void (*state_changed) (void *data, enum pw_node_state old,
                               enum pw_node_state state, const char *error);
 
        void (*result) (void *data, int seq, int res, uint32_t type, const void *result);
 
        void (*event) (void *data, const struct spa_event *event);
 
        void (*driver_changed) (void *data, struct pw_impl_node *old, struct pw_impl_node *driver);
 
        void (*peer_added) (void *data, struct pw_impl_node *peer);
        void (*peer_removed) (void *data, struct pw_impl_node *peer);
};
 
struct pw_impl_node_rt_events {
#define PW_VERSION_IMPL_NODE_RT_EVENTS  0
        uint32_t version;
        void (*drained) (void *data);
        void (*xrun) (void *data);
        void (*start) (void *data);
        void (*complete) (void *data);
        void (*incomplete) (void *data);
        void (*timeout) (void *data);
};
 
struct pw_impl_node *
pw_context_create_node(struct pw_context *context,      
            struct pw_properties *properties,   
            size_t user_data_size               );
 
int pw_impl_node_register(struct pw_impl_node *node,            
                     struct pw_properties *properties   );
 
void pw_impl_node_destroy(struct pw_impl_node *node);
 
const struct pw_node_info *pw_impl_node_get_info(struct pw_impl_node *node);
 
void * pw_impl_node_get_user_data(struct pw_impl_node *node);
 
struct pw_context *pw_impl_node_get_context(struct pw_impl_node *node);
 
struct pw_global *pw_impl_node_get_global(struct pw_impl_node *node);
 
const struct pw_properties *pw_impl_node_get_properties(struct pw_impl_node *node);
 
int pw_impl_node_update_properties(struct pw_impl_node *node, const struct spa_dict *dict);
 
int pw_impl_node_set_implementation(struct pw_impl_node *node, struct spa_node *spa_node);
 
struct spa_node *pw_impl_node_get_implementation(struct pw_impl_node *node);
 
void pw_impl_node_add_listener(struct pw_impl_node *node,
                          struct spa_hook *listener,
                          const struct pw_impl_node_events *events,
                          void *data);
 
void pw_impl_node_add_rt_listener(struct pw_impl_node *node,
                          struct spa_hook *listener,
                          const struct pw_impl_node_rt_events *events,
                          void *data);
void pw_impl_node_remove_rt_listener(struct pw_impl_node *node,
                          struct spa_hook *listener);
 
int pw_impl_node_for_each_port(struct pw_impl_node *node,
                          enum pw_direction direction,
                          int (*callback) (void *data, struct pw_impl_port *port),
                          void *data);
 
int pw_impl_node_for_each_param(struct pw_impl_node *node,
                           int seq, uint32_t param_id,
                           uint32_t index, uint32_t max,
                           const struct spa_pod *filter,
                           int (*callback) (void *data, int seq,
                                            uint32_t id, uint32_t index, uint32_t next,
                                            struct spa_pod *param),
                           void *data);
 
struct pw_impl_port *
pw_impl_node_find_port(struct pw_impl_node *node, enum pw_direction direction, uint32_t port_id);
 
uint32_t pw_impl_node_get_free_port_id(struct pw_impl_node *node, enum pw_direction direction);
 
int pw_impl_node_initialized(struct pw_impl_node *node);
 
int pw_impl_node_set_active(struct pw_impl_node *node, bool active);
 
bool pw_impl_node_is_active(struct pw_impl_node *node);
 
int pw_impl_node_send_command(struct pw_impl_node *node, const struct spa_command *command);
 
int pw_impl_node_set_param(struct pw_impl_node *node,
                uint32_t id, uint32_t flags, const struct spa_pod *param);
#ifdef __cplusplus
}
#endif
 
#endif /* PIPEWIRE_IMPL_NODE_H */