return ret;
rt->real_setup_cache = !s->nb_streams ? NULL :
- av_mallocz(2 * s->nb_streams * sizeof(*rt->real_setup_cache));
+ av_mallocz_array(s->nb_streams, 2 * sizeof(*rt->real_setup_cache));
if (!rt->real_setup_cache && s->nb_streams)
return AVERROR(ENOMEM);
rt->real_setup = rt->real_setup_cache + s->nb_streams;