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filter-chain: move the filter-graph to plugins

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This commit is contained in:
Wim Taymans 2024-11-13 11:10:49 +01:00
parent 2e157f7248
commit 567b484386
27 changed files with 122 additions and 132 deletions
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104
spa/include/spa/filter-graph/filter-graph.h Normal file
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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>
/** \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_events {
#define SPA_VERSION_FILTER_GRAPH_EVENTS 0
uint32_t version;
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_chunk {
void *data;
size_t size;
};
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);
int (*get_props) (void *object, struct spa_pod_builder *b, const 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_fraction *rate);
int (*deactivate) (void *object);
int (*reset) (void *object);
int (*process) (void *object,
const struct spa_filter_graph_chunk in[], uint32_t n_in,
struct spa_filter_graph_chunk out[], uint32_t n_out);
};
#define spa_filter_graph_method_r(o,method,version,...) \
({ \
volatile int _res = -ENOTSUP; \
struct spa_filter_graph *_o = o; \
spa_interface_call_fast_res(&_o->iface, \
struct spa_filter_graph_methods, _res, \
method, version, ##__VA_ARGS__); \
_res; \
})
#define spa_filter_graph_add_listener(o,...) spa_filter_graph_method_r(o,add_listener,0,__VA_ARGS__)
#define spa_filter_graph_enum_prop_info(o,...) spa_filter_graph_method_r(o,enum_prop_info,0,__VA_ARGS__)
#define spa_filter_graph_get_props(o,...) spa_filter_graph_method_r(o,get_props,0,__VA_ARGS__)
#define spa_filter_graph_set_props(o,...) spa_filter_graph_method_r(o,set_props,0,__VA_ARGS__)
#define spa_filter_graph_activate(o,...) spa_filter_graph_method_r(o,activate,0,__VA_ARGS__)
#define spa_filter_graph_deactivate(o) spa_filter_graph_method_r(o,deactivate,0)
#define spa_filter_graph_reset(o) spa_filter_graph_method_r(o,reset,0)
#define spa_filter_graph_process(o,...) spa_filter_graph_method_r(o,process,0,__VA_ARGS__)
/**
* \}
*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* SPA_FILTER_GRAPH_H */