Function av_refstruct_unref

libavutil/refstruct.c:120–138

}

void av_refstruct_unref(void *objp)
{
    void *obj;
    RefCount *ref;

    memcpy(&obj, objp, sizeof(obj));
    if (!obj)
        return;
    memcpy(objp, &(void *){ NULL }, sizeof(obj));

    ref = get_refcount(obj);
    if (atomic_fetch_sub_explicit(&ref->refcount, 1, memory_order_acq_rel) == 1) {
        if (ref->free_cb)
            ref->free_cb(ref->opaque, obj);
        ref->free(ref);
    }

    return;
}

void *av_refstruct_ref(void *obj)
{