- PSNRContext *s = inlink->dst->priv;
- return ff_dualinput_filter_frame(&s->dinput, inlink, inpicref);
-}
-
-static int request_frame(AVFilterLink *outlink)
-{
- PSNRContext *s = outlink->src->priv;
- return ff_dualinput_request_frame(&s->dinput, outlink);