static void fill_table(uint8_t* table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize,

                       const int inc, void *y_tab)

{

    int i;

    uint8_t *y_table = y_tab;



    y_table -= elemsize * (inc >> 9);



    for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {

        int64_t cb = av_clip(i-YUVRGB_TABLE_HEADROOM, 0, 255)*inc;

        table[i] = y_table + elemsize * (cb >> 16);

    }

}
