PipeWire: tutorial2.c

PipeWire 0.3.67

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tutorial2.c

Tutorial - Part 2: Enumerating Objects

/*
[title]
\ref page_tutorial2
[title]
*/
/* [code] */
#include <pipewire/pipewire.h>
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[])
{
struct pw_main_loop *loop;
struct pw_context *context;
struct pw_core *core;
struct pw_registry *registry;
struct spa_hook registry_listener;
pw_init(&argc, &argv);
loop = pw_main_loop_new(NULL /* properties */);
context = pw_context_new(pw_main_loop_get_loop(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);
pw_main_loop_run(loop);
pw_proxy_destroy((struct pw_proxy*)registry);
pw_core_disconnect(core);
pw_context_destroy(context);
pw_main_loop_destroy(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:380
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:168
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:382
pw_core_disconnect
int pw_core_disconnect(struct pw_core *core)
disconnect and destroy a core
Definition: core.c:469
PW_VERSION_REGISTRY
#define PW_VERSION_REGISTRY
Definition: core.h:49
pw_core_get_registry
static struct pw_registry * pw_core_get_registry(struct pw_core *core, uint32_t version, size_t user_data_size)
Definition: core.h:385
pw_main_loop_destroy
void pw_main_loop_destroy(struct pw_main_loop *loop)
Destroy a loop.
Definition: main-loop.c:70
pw_main_loop_run
int pw_main_loop_run(struct pw_main_loop *loop)
Run a main loop.
Definition: main-loop.c:119
pw_main_loop_new
struct pw_main_loop * pw_main_loop_new(const struct spa_dict *props)
Create a new main loop.
Definition: main-loop.c:60
pw_main_loop_get_loop
struct pw_loop * pw_main_loop_get_loop(struct pw_main_loop *loop)
Get the loop implementation.
Definition: main-loop.c:93
pw_init
void pw_init(int *argc, char **argv[])
Initialize PipeWire.
Definition: pipewire.c:558
pw_proxy_destroy
void pw_proxy_destroy(struct pw_proxy *proxy)
destroy a proxy
Definition: proxy.c:211
PW_VERSION_REGISTRY_EVENTS
#define PW_VERSION_REGISTRY_EVENTS
Definition: core.h:463
pw_registry_add_listener
#define pw_registry_add_listener(p,...)
Registry.
Definition: core.h:546
spa_zero
#define spa_zero(x)
Definition: defs.h:417
pipewire.h
pipewire/pipewire.h
pw_context
pw_core
pw_main_loop
A main loop object.
pw_proxy
pw_registry_events
Registry events.
Definition: core.h:461
pw_registry
spa_dict
Definition: utils/dict.h:39
spa_hook
A hook, contains the structure with functions and the data passed to the functions.
Definition: hook.h:331