PipeWire: gmain.c

PipeWire 1.4.2 |

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gmain.c

#include <glib.h>
#include <pipewire/pipewire.h>
#include <spa/utils/result.h>
typedef struct _PipeWireSource
{
GSource base;
struct pw_loop *loop;
} PipeWireSource;
static gboolean
pipewire_loop_source_dispatch (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
PipeWireSource *s = (PipeWireSource *) source;
int result;
result = pw_loop_iterate (s->loop, 0);
if (result < 0)
g_warning ("pipewire_loop_iterate failed: %s", spa_strerror (result));
return TRUE;
}
static GSourceFuncs pipewire_source_funcs =
{
.dispatch = pipewire_loop_source_dispatch,
};
static void registry_event_global(void *data, uint32_t id,
uint32_t permissions, const char *type, uint32_t version,
const struct spa_dict *props)
{
printf("object: id:%u type:%s/%d\n", id, type, version);
}
static const struct pw_registry_events registry_events = {
PW_VERSION_REGISTRY_EVENTS,
.global = registry_event_global,
};
int main(int argc, char *argv[])
{
GMainLoop *main_loop;
PipeWireSource *source;
struct pw_loop *loop;
struct pw_context *context;
struct pw_core *core;
struct pw_registry *registry;
struct spa_hook registry_listener;
main_loop = g_main_loop_new (NULL, FALSE);
pw_init(&argc, &argv);
loop = pw_loop_new(NULL /* properties */);
/* wrap */
source = (PipeWireSource *) g_source_new (&pipewire_source_funcs,
sizeof (PipeWireSource));
source->loop = loop;
g_source_add_unix_fd (&source->base,
pw_loop_get_fd (loop),
G_IO_IN | G_IO_ERR);
g_source_attach (&source->base, NULL);
g_source_unref (&source->base);
context = pw_context_new(loop,
NULL /* properties */,
0 /* user_data size */);
core = pw_context_connect(context,
NULL /* properties */,
0 /* user_data size */);
registry = pw_core_get_registry(core, PW_VERSION_REGISTRY,
0 /* user_data size */);
spa_zero(registry_listener);
pw_registry_add_listener(registry, &registry_listener,
&registry_events, NULL);
/* enter and leave must be called from the same thread that runs
* the mainloop */
pw_loop_enter(loop);
g_main_loop_run(main_loop);
pw_loop_leave(loop);
pw_proxy_destroy((struct pw_proxy*)registry);
pw_core_disconnect(core);
pw_context_destroy(context);
pw_loop_destroy(loop);
g_main_loop_unref(main_loop);
return 0;
}
/* [code] */
pw_context_destroy
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
pw_context_new
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
pw_context_connect
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_core_get_registry
PW_API_CORE_IMPL struct pw_registry * pw_core_get_registry(struct pw_core *core, uint32_t version, size_t user_data_size)
Get the registry object.
Definition core.h:457
pw_core_disconnect
int pw_core_disconnect(struct pw_core *core)
disconnect and destroy a core
Definition core.c:506
PW_VERSION_REGISTRY
#define PW_VERSION_REGISTRY
Definition core.h:54
pw_loop_enter
PW_API_LOOP_IMPL void pw_loop_enter(struct pw_loop *object)
Definition loop.h:83
pw_loop_leave
PW_API_LOOP_IMPL void pw_loop_leave(struct pw_loop *object)
Definition loop.h:87
pw_loop_new
struct pw_loop * pw_loop_new(const struct spa_dict *props)
Create a new loop.
Definition loop.c:41
pw_loop_get_fd
PW_API_LOOP_IMPL int pw_loop_get_fd(struct pw_loop *object)
Definition loop.h:73
pw_loop_iterate
PW_API_LOOP_IMPL int pw_loop_iterate(struct pw_loop *object, int timeout)
Definition loop.h:91
pw_loop_destroy
void pw_loop_destroy(struct pw_loop *loop)
Destroy a loop.
Definition loop.c:157
pw_init
void pw_init(int *argc, char **argv[])
Initialize PipeWire.
Definition pipewire.c:488
pw_proxy_destroy
void pw_proxy_destroy(struct pw_proxy *proxy)
destroy a proxy
Definition proxy.c:209
PW_VERSION_REGISTRY_EVENTS
#define PW_VERSION_REGISTRY_EVENTS
Definition core.h:535
pw_registry_add_listener
PW_API_REGISTRY_IMPL int pw_registry_add_listener(struct pw_registry *registry, struct spa_hook *listener, const struct pw_registry_events *events, void *data)
Registry.
Definition core.h:613
spa_strerror
SPA_API_RESULT const char * spa_strerror(int err)
Definition result.h:61
spa_zero
#define spa_zero(x)
Definition defs.h:508
pipewire.h
pipewire/pipewire.h
result.h
spa/utils/result.h
pw_context
pw_core
pw_loop
Definition loop.h:33
pw_loop::loop
struct spa_loop * loop
wrapped loop
Definition loop.h:35
pw_proxy
pw_registry_events
Registry events.
Definition core.h:533
pw_registry
spa_dict
Definition dict.h:51
spa_hook
A hook, contains the structure with functions and the data passed to the functions.
Definition hook.h:427