VAR_R             252 libavfilter/vf_hue.c     hue->var_values[VAR_R]  = inlink->frame_rate.num == 0 || inlink->frame_rate.den == 0 ?
VAR_R             290 libavfilter/vf_vignette.c     s->var_values[VAR_R]  = inlink->frame_rate.num == 0 || inlink->frame_rate.den == 0 ?