Function av_expr_eval

libavutil/eval.c:824–837

}

double av_expr_eval(AVExpr *e, const double *const_values, void *opaque)
{
    av_assert1(e->root);
    AVExprRoot *r = (AVExprRoot *)e;
    Parser p = {
        .class        = &eval_class,
        .const_values = const_values,
        .opaque       = opaque,
        .var          = r->var,
        .prng_state   = r->prng_state,
    };

    return eval_expr(&p, e);
}

int av_expr_parse_and_eval(double *d, const char *s,
                           const char * const *const_names, const double *const_values,