mirror of
https://gitlab.freedesktop.org/pipewire/pipewire
synced 2024-09-06 16:56:00 +00:00
90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
/*
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[title]
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\ref page_tutorial3
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[title]
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*/
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/* [code] */
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#include <pipewire/pipewire.h>
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/* [roundtrip] */
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struct roundtrip_data {
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int pending;
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struct pw_main_loop *loop;
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};
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static void on_core_done(void *data, uint32_t id, int seq)
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{
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struct roundtrip_data *d = data;
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if (id == PW_ID_CORE && seq == d->pending)
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pw_main_loop_quit(d->loop);
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}
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static void roundtrip(struct pw_core *core, struct pw_main_loop *loop)
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{
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static const struct pw_core_events core_events = {
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PW_VERSION_CORE_EVENTS,
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.done = on_core_done,
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};
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struct roundtrip_data d = { .loop = loop };
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struct spa_hook core_listener;
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pw_core_add_listener(core, &core_listener, &core_events, &d);
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d.pending = pw_core_sync(core, PW_ID_CORE, 0);
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pw_main_loop_run(loop);
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spa_hook_remove(&core_listener);
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}
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/* [roundtrip] */
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static void registry_event_global(void *data, uint32_t id,
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uint32_t permissions, const char *type, uint32_t version,
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const struct spa_dict *props)
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{
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printf("object: id:%u type:%s/%d\n", id, type, version);
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}
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static const struct pw_registry_events registry_events = {
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PW_VERSION_REGISTRY_EVENTS,
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.global = registry_event_global,
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};
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int main(int argc, char *argv[])
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{
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struct pw_main_loop *loop;
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struct pw_context *context;
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struct pw_core *core;
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struct pw_registry *registry;
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struct spa_hook registry_listener;
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pw_init(&argc, &argv);
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loop = pw_main_loop_new(NULL /* properties */);
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context = pw_context_new(pw_main_loop_get_loop(loop),
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NULL /* properties */,
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0 /* user_data size */);
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core = pw_context_connect(context,
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NULL /* properties */,
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0 /* user_data size */);
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registry = pw_core_get_registry(core, PW_VERSION_REGISTRY,
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0 /* user_data size */);
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pw_registry_add_listener(registry, ®istry_listener,
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®istry_events, NULL);
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roundtrip(core, loop);
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pw_proxy_destroy((struct pw_proxy*)registry);
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pw_core_disconnect(core);
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pw_context_destroy(context);
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pw_main_loop_destroy(loop);
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return 0;
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}
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/* [code] */
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