VP9_MAX_SUPER_FRAMES_NUM
struct vp9_sf_ref_fb sf_ref_fb[VP9_MAX_SUPER_FRAMES_NUM];
unsigned int sf_frm_offset[VP9_MAX_SUPER_FRAMES_NUM];
unsigned int sf_frm_sz[VP9_MAX_SUPER_FRAMES_NUM];
if (vsi->sf_frm_idx > VP9_MAX_SUPER_FRAMES_NUM) {