find_format_by_fourcc
isi_fmt = find_format_by_fourcc(isi, pixfmt->pixelformat);
isi_fmt = find_format_by_fourcc(isi, fsize->pixel_format);
isi_fmt = find_format_by_fourcc(isi, fival->pixel_format);
sd_fmt = find_format_by_fourcc(dcmi, pix->pixelformat);
sd_fmt = find_format_by_fourcc(dcmi, fsize->pixel_format);
sd_fmt = find_format_by_fourcc(dcmi, fival->pixel_format);
sd_fmt = find_format_by_fourcc(dcmi, pix->pixelformat);
fmt = find_format_by_fourcc(V4L2_PIX_FMT_UYVY);
fmt = find_format_by_fourcc(f->fmt.pix.pixelformat);
fmt = find_format_by_fourcc(fsize->pixel_format);
fmt = find_format_by_fourcc(csi->v_fmt.fmt.pix.pixelformat);
direct_fmt = find_format_by_fourcc(isc, pixfmt->pixelformat);