DURATION_SHORTEST  185 libavfilter/af_amix.c         { "shortest", "Duration of shortest input.", 0, AV_OPT_TYPE_CONST, { .i64 = DURATION_SHORTEST }, INT_MIN, INT_MAX, A|F, "duration" },
DURATION_SHORTEST  382 libavfilter/af_amix.c         (s->duration_mode == DURATION_SHORTEST && active_inputs != s->nb_inputs))