case V4L2_PIX_FMT_YUYV: cmodel = BC_YUV422; merit = 4; break;
case V4L2_PIX_FMT_Y41P: cmodel = BC_YUV411P; merit = 1; break;
case V4L2_PIX_FMT_YVU420: cmodel = BC_YUV420P; merit = 3; break;
case V4L2_PIX_FMT_YUYV: cmodel = BC_YUV422; merit = 4; break;
case V4L2_PIX_FMT_Y41P: cmodel = BC_YUV411P; merit = 1; break;
case V4L2_PIX_FMT_YVU420: cmodel = BC_YUV420P; merit = 3; break;