+ var_values[VAR_IN_TIME] = var_values[VAR_IT] = in->pts == AV_NOPTS_VALUE ?
+ NAN : in->pts * av_q2d(inlink->time_base);
+ var_values[VAR_OUT_TIME] = pts * av_q2d(outlink->time_base);
+ var_values[VAR_TIME] = var_values[VAR_OT] = var_values[VAR_OUT_TIME];