int av_fill_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, int height,
                           uint8_t *ptr, const int linesizes[4])
{
    int i, total_size, size[4], has_plane[4];

    const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
    memset(data     , 0, sizeof(data[0])*4);
    memset(size     , 0, sizeof(size));
    memset(has_plane, 0, sizeof(has_plane));

    if (desc->flags & PIX_FMT_HWACCEL)
        return AVERROR(EINVAL);

    data[0] = ptr;
    size[0] = linesizes[0] * height;

    if (desc->flags & PIX_FMT_PAL) {
        size[0] = (size[0] + 3) & ~3;
        data[1] = ptr + size[0]; /* palette is stored here as 256 32 bits words */
        return size[0] + 256 * 4;
    }

    for (i = 0; i < 4; i++)
        has_plane[desc->comp[i].plane] = 1;

    total_size = size[0];
    for (i = 1; has_plane[i] && i < 4; i++) {
        int h, s = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
        data[i] = data[i-1] + size[i-1];
        h = (height + (1 << s) - 1) >> s;
        size[i] = h * linesizes[i];
        total_size += size[i];
    }

    return total_size;
}