VAR_VAL           237 libavfilter/f_drawgraph.c         values[VAR_VAL] = vf;
VAR_VAL           363 libavfilter/f_drawgraph.c                 values[VAR_VAL] = vf;
VAR_VAL           319 libavfilter/vf_lut.c             s->var_values[VAR_VAL] = val;
VAR_VAL           322 libavfilter/vf_lut.c                 av_clip(min[color] + max[color] - s->var_values[VAR_VAL],
VAR_VAL           478 libavfilter/vf_pseudocolor.c             s->var_values[VAR_VAL] = val;