factory.h

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/* PipeWire */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */
 
#ifndef PIPEWIRE_FACTORY_H
#define PIPEWIRE_FACTORY_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stdarg.h>
#include <errno.h>
 
#include <spa/utils/defs.h>
#include <spa/utils/hook.h>
 
#include <pipewire/proxy.h>
 
#define PW_TYPE_INTERFACE_Factory       PW_TYPE_INFO_INTERFACE_BASE "Factory"
 
#define PW_FACTORY_PERM_MASK            PW_PERM_R|PW_PERM_M
 
#define PW_VERSION_FACTORY              3
struct pw_factory;
 
struct pw_factory_info {
        uint32_t id;                    
        const char *name;               
        const char *type;               
        uint32_t version;               
#define PW_FACTORY_CHANGE_MASK_PROPS    (1 << 0)
#define PW_FACTORY_CHANGE_MASK_ALL      ((1 << 1)-1)
        uint64_t change_mask;           
        struct spa_dict *props;         
};
 
struct pw_factory_info *
pw_factory_info_update(struct pw_factory_info *info,
                const struct pw_factory_info *update);
struct pw_factory_info *
pw_factory_info_merge(struct pw_factory_info *info,
                const struct pw_factory_info *update, bool reset);
void
pw_factory_info_free(struct pw_factory_info *info);
 
 
#define PW_FACTORY_EVENT_INFO           0
#define PW_FACTORY_EVENT_NUM            1
 
struct pw_factory_events {
#define PW_VERSION_FACTORY_EVENTS       0
        uint32_t version;
        void (*info) (void *data, const struct pw_factory_info *info);
};
 
#define PW_FACTORY_METHOD_ADD_LISTENER  0
#define PW_FACTORY_METHOD_NUM           1
 
struct pw_factory_methods {
#define PW_VERSION_FACTORY_METHODS      0
        uint32_t version;
 
        int (*add_listener) (void *object,
                        struct spa_hook *listener,
                        const struct pw_factory_events *events,
                        void *data);
};
 
#define pw_factory_method(o,method,version,...)                         \
({                                                                      \
        int _res = -ENOTSUP;                                            \
        spa_interface_call_res((struct spa_interface*)o,                \
                        struct pw_factory_methods, _res,                \
                        method, version, ##__VA_ARGS__);                \
        _res;                                                           \
})
 
#define pw_factory_add_listener(c,...)  pw_factory_method(c,add_listener,0,__VA_ARGS__)
 
#ifdef __cplusplus
}  /* extern "C" */
#endif
 
#endif /* PIPEWIRE_FACTORY_H */