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/* Simple Plugin API */
/* SPDX-FileCopyrightText: Copyright © 2024 Wim Taymans */
/* SPDX-License-Identifier: MIT */
#ifndef SPA_FILTER_GRAPH_H
#define SPA_FILTER_GRAPH_H
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#include <spa/utils/defs.h>
#include <spa/utils/hook.h>
#include <spa/pod/builder.h>
#ifndef SPA_API_FILTER_GRAPH
#ifdef SPA_API_IMPL
#define SPA_API_FILTER_GRAPH SPA_API_IMPL
#else
#define SPA_API_FILTER_GRAPH static inline
#endif
#endif
/** \defgroup spa_filter_graph Filter Graph
* a graph of filters
*/
/**
* \addtogroup spa_filter_graph
* \{
*/
/**
* A graph of filters
*/
#define SPA_TYPE_INTERFACE_FilterGraph SPA_TYPE_INFO_INTERFACE_BASE "FilterGraph"
#define SPA_VERSION_FILTER_GRAPH 0
struct spa_filter_graph { struct spa_interface iface; };
struct spa_filter_graph_info {
uint32_t n_inputs;
uint32_t n_outputs;
#define SPA_FILTER_GRAPH_CHANGE_MASK_FLAGS (1u<<0)
#define SPA_FILTER_GRAPH_CHANGE_MASK_PROPS (1u<<1)
uint64_t change_mask;
uint64_t flags;
struct spa_dict *props;
};
struct spa_filter_graph_events {
#define SPA_VERSION_FILTER_GRAPH_EVENTS 0
uint32_t version;
void (*info) (void *object, const struct spa_filter_graph_info *info);
void (*apply_props) (void *object, enum spa_direction direction, const struct spa_pod *props);
void (*props_changed) (void *object, enum spa_direction direction);
};
struct spa_filter_graph_methods {
#define SPA_VERSION_FILTER_GRAPH_METHODS 0
uint32_t version;
int (*add_listener) (void *object,
struct spa_hook *listener,
const struct spa_filter_graph_events *events,
void *data);
int (*enum_prop_info) (void *object, uint32_t idx, struct spa_pod_builder *b,
struct spa_pod **param);
int (*get_props) (void *object, struct spa_pod_builder *b, struct spa_pod **props);
int (*set_props) (void *object, enum spa_direction direction, const struct spa_pod *props);
int (*activate) (void *object, const struct spa_dict *props);
int (*deactivate) (void *object);
int (*reset) (void *object);
int (*process) (void *object, const void *in[], void *out[], uint32_t n_samples);
};
SPA_API_FILTER_GRAPH int spa_filter_graph_add_listener(struct spa_filter_graph *object,
struct spa_hook *listener,
const struct spa_filter_graph_events *events, void *data)
{
return spa_api_method_r(int, -ENOTSUP,
spa_filter_graph, &object->iface, add_listener, 0, listener,
events, data);
}
SPA_API_FILTER_GRAPH int spa_filter_graph_enum_prop_info(struct spa_filter_graph *object,
uint32_t idx, struct spa_pod_builder *b, struct spa_pod **param)
{
return spa_api_method_r(int, -ENOTSUP,
spa_filter_graph, &object->iface, enum_prop_info, 0, idx, b, param);
}
SPA_API_FILTER_GRAPH int spa_filter_graph_get_props(struct spa_filter_graph *object,
struct spa_pod_builder *b, struct spa_pod **props)
{
return spa_api_method_r(int, -ENOTSUP,
spa_filter_graph, &object->iface, get_props, 0, b, props);
}
SPA_API_FILTER_GRAPH int spa_filter_graph_set_props(struct spa_filter_graph *object,
enum spa_direction direction, const struct spa_pod *props)
{
return spa_api_method_r(int, -ENOTSUP,
spa_filter_graph, &object->iface, set_props, 0, direction, props);
}
SPA_API_FILTER_GRAPH int spa_filter_graph_activate(struct spa_filter_graph *object, const struct spa_dict *props)
{
return spa_api_method_r(int, -ENOTSUP,
spa_filter_graph, &object->iface, activate, 0, props);
}
SPA_API_FILTER_GRAPH int spa_filter_graph_deactivate(struct spa_filter_graph *object)
{
return spa_api_method_r(int, -ENOTSUP,
spa_filter_graph, &object->iface, deactivate, 0);
}
SPA_API_FILTER_GRAPH int spa_filter_graph_reset(struct spa_filter_graph *object)
{
return spa_api_method_r(int, -ENOTSUP,
spa_filter_graph, &object->iface, reset, 0);
}
SPA_API_FILTER_GRAPH int spa_filter_graph_process(struct spa_filter_graph *object,
const void *in[], void *out[], uint32_t n_samples)
{
return spa_api_method_r(int, -ENOTSUP,
spa_filter_graph, &object->iface, process, 0, in, out, n_samples);
}
/**
* \}
*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* SPA_FILTER_GRAPH_H */