struct bt_stream_class *stream_class, uint64_t id);
extern struct bt_clock_class *bt_stream_class_borrow_default_clock_class(
struct bt_stream_class *stream_class);
struct bt_stream_class *stream_class, uint64_t id);
extern struct bt_clock_class *bt_stream_class_borrow_default_clock_class(
struct bt_stream_class *stream_class);