typedef struct bt_self_component_port_output bt_self_component_port_output;
typedef struct bt_self_component_sink bt_self_component_sink;
typedef struct bt_self_component_source bt_self_component_source;
typedef struct bt_self_component_port_output bt_self_component_port_output;
typedef struct bt_self_component_sink bt_self_component_sink;
typedef struct bt_self_component_source bt_self_component_source;