static int pix_abs8x8_c(UINT8 *pix1, UINT8 *pix2, int line_size)
static inline int pix_abs8x8_c(UINT8 *pix1, UINT8 *pix2, int line_size)
static int pix_abs8x8_c(UINT8 *pix1, UINT8 *pix2, int line_size){    int s, i;    s = 0;    for(i=0;i<8;i++) {        s += abs(pix1[0] - pix2[0]);        s += abs(pix1[1] - pix2[1]);        s += abs(pix1[2] - pix2[2]);        s += abs(pix1[3] - pix2[3]);        s += abs(pix1[4] - pix2[4]);        s += abs(pix1[5] - pix2[5]);        s += abs(pix1[6] - pix2[6]);        s += abs(pix1[7] - pix2[7]);        pix1 += line_size;        pix2 += line_size;    }    return s;}