static const AVClass *filter_child_class_next(const AVClass *prev)

{

    AVFilter **f = NULL;



    while (prev && *(f = av_filter_next(f)))

        if ((*f)->priv_class == prev)

            break;



    while (*(f = av_filter_next(f)))

        if ((*f)->priv_class)

            return (*f)->priv_class;



    return NULL;

}

static const AVClass *filter_child_class_next(const AVClass *prev)

{

    AVFilter **f = NULL;



    while (prev && *(f = av_filter_next(f)))

        if ((*f)->priv_class == prev)

            break;



    while (*(f = av_filter_next(f)))

        if ((*f)->priv_class)

            return (*f)->priv_class;



    return NULL;

}

static const AVClass *FUNC_0(const AVClass *prev)

{

    AVFilter **f = NULL;



    while (prev && *(f = av_filter_next(f)))

        if ((*f)->priv_class == prev)

            break;



    while (*(f = av_filter_next(f)))

        if ((*f)->priv_class)

            return (*f)->priv_class;



    return NULL;

}

static const AVClass *FUNC_0(const AVClass *prev)
{ AVFilter **f = NULL; while (prev && *(f = av_filter_next(f)))
if ((*f)->priv_class == prev)
break; while (*(f = av_filter_next(f)))
if ((*f)->priv_class)
return (*f)->priv_class; return NULL; }