VAR_PREV_OUTT     114 libavfilter/setpts.c     setpts->var_values[VAR_PREV_OUTT]   = NAN;
VAR_PREV_OUTT     219 libavfilter/setpts.c     setpts->var_values[VAR_PREV_OUTT]   = TS2T(frame->pts, inlink->time_base);