static unsigned int find_best(struct vf_instance *vf){ int is_format_okay = vf->next->query_format(vf->next, IMGFMT_YV12); if ((is_format_okay & VFCAP_CSP_SUPPORTED_BY_HW) || (is_format_okay & VFCAP_CSP_SUPPORTED)) return IMGFMT_YV12; else return 0; }