VAR_S             231 libavfilter/aeval.c     eval->var_values[VAR_S] = eval->sample_rate;
VAR_S             408 libavfilter/aeval.c     eval->var_values[VAR_S] = inlink->sample_rate;
VAR_S             110 libavfilter/setpts.c     setpts->var_values[VAR_S]           = 0.0;
VAR_S             173 libavfilter/setpts.c             setpts->var_values[VAR_S] = frame->nb_samples;