VAR_SAR            53 libavfilter/vf_aspect.c     VAR_SAR,
VAR_SAR            64 libavfilter/vf_crop.c     VAR_SAR,
VAR_SAR            61 libavfilter/vf_drawbox.c     VAR_SAR,
VAR_SAR           121 libavfilter/vf_drawtext.c     VAR_SAR,
VAR_SAR            67 libavfilter/vf_pad.c     VAR_SAR,
VAR_SAR            65 libavfilter/vf_scale.c     VAR_SAR,
VAR_SAR            69 libavfilter/vf_zoompan.c     VAR_SAR,