OFFSETC            45 libavfilter/vf_vidstabdetect.c #define OFFSETC(x) (offsetof(StabData, conf)+offsetof(VSMotionDetectConfig, x))
OFFSETC            46 libavfilter/vf_vidstabtransform.c #define OFFSETC(x) (offsetof(TransformContext, conf)+offsetof(VSTransformConfig, x))