#include <stdio.h>
#include <sys/mman.h>
#include <signal.h>
 
#include <spa/param/video/format-utils.h>
 
 
struct data {
 
 
 
        const char *library;
        const char *factory;
        const char *path;
 
};
 
static void proxy_event_bound_props(
void *_data, uint32_t global_id, 
const struct spa_dict *props)
 
{
        struct data *data = _data;
        if (data->id != global_id) {
                printf("node id: %u\n", global_id);
                data->id = global_id;
        }
}
 
        .bound_props = proxy_event_bound_props,
};
 
static int make_node(struct data *data)
{
        void *iface;
 
                                  NULL);
 
 
        if (hndl == NULL)
                return -errno;
 
 
        data->node = iface;
 
        if (data->path) {
        }
 
                        data->node, 0);
 
        if (data->proxy == NULL)
                return -errno;
 
                        &data->proxy_listener, &proxy_events, data);
 
        return 0;
}
 
static void on_core_error(
void *data, uint32_t 
id, 
int seq, 
int res, 
const char *
message)
 
{
        struct data *d = data;
 
 
}
 
        .error = on_core_error,
};
 
static void do_quit(void *data, int signal_number)
{
        struct data *d = data;
}
 
int main(int argc, char *argv[])
{
        struct data data = { 0, };
 
 
        if (argc < 3) {
                fprintf(stderr, "usage: %s <library> <factory> [path]\n\n"
                                "\texample: %s v4l2/libspa-v4l2 api.v4l2.source\n\n",
                                argv[0], argv[0]);
                return -1;
        }
 
        data.library = argv[1];
        data.factory = argv[2];
        if (argc > 3)
                data.path = argv[3];
 
 
        if (data.core == NULL) {
                printf("can't connect: %m\n");
                return -1;
        }
                                   &data.core_listener,
                                   &core_events, &data);
 
        if (make_node(&data) < 0) {
                return -1;
        }
 
 
 
        return 0;
}
struct spa_handle * pw_context_load_spa_handle(struct pw_context *context, const char *factory_name, const struct spa_dict *info)
Load a SPA handle from a context.
Definition context.c:1960
void pw_context_destroy(struct pw_context *context)
destroy a context object, all resources except the main_loop will be destroyed
Definition context.c:522
struct pw_context * pw_context_new(struct pw_loop *main_loop, struct pw_properties *props, size_t user_data_size)
Make a new context object for a given main_loop.
Definition context.c:310
#define PW_ID_CORE
default ID for the core object after connect
Definition core.h:73
struct pw_core * pw_context_connect(struct pw_context *context, struct pw_properties *properties, size_t user_data_size)
Connect to a PipeWire instance.
Definition core.c:410
PW_API_CORE_IMPL int pw_core_add_listener(struct pw_core *object, struct spa_hook *listener, const struct pw_core_events *events, void *data)
Definition core.h:389
uint32_t int seq
Definition core.h:432
struct pw_proxy * pw_core_export(struct pw_core *core, const char *type, const struct spa_dict *props, void *object, size_t user_data_size)
Export an object into the PipeWire instance associated with core.
Definition core.c:285
int pw_core_disconnect(struct pw_core *core)
disconnect and destroy a core
Definition core.c:506
uint32_t id
Definition core.h:432
uint32_t int int const char * message
Definition core.h:433
uint32_t int int res
Definition core.h:433
#define PW_VERSION_CORE_EVENTS
Definition core.h:141
struct pw_impl_module * pw_context_load_module(struct pw_context *context, const char *name, const char *args, struct pw_properties *properties)
Load a module.
Definition impl-module.c:139
#define PW_KEY_NODE_AUTOCONNECT
node wants to be automatically connected to a compatible node
Definition keys.h:237
#define PW_KEY_TARGET_OBJECT
a target object to link to.
Definition keys.h:566
#define pw_log_error(...)
Definition log.h:178
PW_API_LOOP_IMPL struct spa_source * pw_loop_add_signal(struct pw_loop *object, int signal_number, spa_source_signal_func_t func, void *data)
Definition loop.h:141
int pw_main_loop_quit(struct pw_main_loop *loop)
Quit a main loop.
Definition main-loop.c:108
void pw_main_loop_destroy(struct pw_main_loop *loop)
Destroy a loop.
Definition main-loop.c:73
int pw_main_loop_run(struct pw_main_loop *loop)
Run a main loop.
Definition main-loop.c:122
struct pw_main_loop * pw_main_loop_new(const struct spa_dict *props)
Create a new main loop.
Definition main-loop.c:63
struct pw_loop * pw_main_loop_get_loop(struct pw_main_loop *loop)
Get the loop implementation.
Definition main-loop.c:96
void pw_init(int *argc, char **argv[])
Initialize PipeWire.
Definition pipewire.c:488
void pw_properties_free(struct pw_properties *properties)
Free a properties object.
Definition properties.c:558
struct pw_properties * pw_properties_new(const char *key,...)
Make a new properties object.
Definition properties.c:97
int pw_properties_set(struct pw_properties *properties, const char *key, const char *value)
Set a property value.
Definition properties.c:585
void pw_proxy_add_listener(struct pw_proxy *proxy, struct spa_hook *listener, const struct pw_proxy_events *events, void *data)
Add an event listener to proxy.
Definition proxy.c:172
#define PW_VERSION_PROXY_EVENTS
Definition proxy.h:100
void pw_proxy_destroy(struct pw_proxy *proxy)
destroy a proxy
Definition proxy.c:209
#define SPA_KEY_FACTORY_NAME
the name of a factory
Definition plugin.h:242
SPA_API_PLUGIN int spa_handle_get_interface(struct spa_handle *object, const char *type, void **iface)
Definition plugin.h:74
#define SPA_KEY_LIBRARY_NAME
the name of a library.
Definition plugin.h:251
#define SPA_TYPE_INTERFACE_Node
Definition node.h:47
SPA_API_RESULT const char * spa_strerror(int err)
Definition result.h:61
Core events.
Definition core.h:139
Definition properties.h:39
struct spa_dict dict
dictionary of key/values
Definition properties.h:40
Proxy events, use pw_proxy_add_listener.
Definition proxy.h:98
A hook, contains the structure with functions and the data passed to the functions.
Definition hook.h:427