void(* setup_spatial_compensation)(uint8_t *src, uint8_t *dst, ptrdiff_t stride, int *range, int *sum, int edges)
void(* h_loop_filter)(uint8_t *src, ptrdiff_t stride, int qscale)
void(* v_loop_filter)(uint8_t *src, ptrdiff_t stride, int qscale)
void(* spatial_compensation[12])(uint8_t *src, uint8_t *dst, ptrdiff_t stride)