JNIEXPORT jlong JNICALL Java_org_videolan_Libbluray_getUOMaskN(JNIEnv * env,
        jclass cls, jlong np) {
    BLURAY* bd = (BLURAY*)(intptr_t)np;

    BD_DEBUG(DBG_JNI, "getUOMaskN()\n");
    return bd_get_uo_mask(bd);
}
JNIEXPORT jlong JNICALL Java_org_videolan_Libbluray_getUOMaskN(JNIEnv * env,
        jclass cls, jlong np) {
    BDJAVA* bdj = (BDJAVA*)(intptr_t)np;
    return bd_get_uo_mask(bdj->bd);
}