void FUNCC(ff_h264_idct8_add)(uint8_t *_dst, DCTELEM *_block, int stride){

    int i;

    INIT_CLIP

    pixel *dst = (pixel*)_dst;

    dctcoef *block = (dctcoef*)_block;

    stride /= sizeof(pixel);



    block[0] += 32;



    for( i = 0; i < 8; i++ )

    {

        const int a0 =  block[i+0*8] + block[i+4*8];

        const int a2 =  block[i+0*8] - block[i+4*8];

        const int a4 = (block[i+2*8]>>1) - block[i+6*8];

        const int a6 = (block[i+6*8]>>1) + block[i+2*8];



        const int b0 = a0 + a6;

        const int b2 = a2 + a4;

        const int b4 = a2 - a4;

        const int b6 = a0 - a6;



        const int a1 = -block[i+3*8] + block[i+5*8] - block[i+7*8] - (block[i+7*8]>>1);

        const int a3 =  block[i+1*8] + block[i+7*8] - block[i+3*8] - (block[i+3*8]>>1);

        const int a5 = -block[i+1*8] + block[i+7*8] + block[i+5*8] + (block[i+5*8]>>1);

        const int a7 =  block[i+3*8] + block[i+5*8] + block[i+1*8] + (block[i+1*8]>>1);



        const int b1 = (a7>>2) + a1;

        const int b3 =  a3 + (a5>>2);

        const int b5 = (a3>>2) - a5;

        const int b7 =  a7 - (a1>>2);



        block[i+0*8] = b0 + b7;

        block[i+7*8] = b0 - b7;

        block[i+1*8] = b2 + b5;

        block[i+6*8] = b2 - b5;

        block[i+2*8] = b4 + b3;

        block[i+5*8] = b4 - b3;

        block[i+3*8] = b6 + b1;

        block[i+4*8] = b6 - b1;

    }

    for( i = 0; i < 8; i++ )

    {

        const int a0 =  block[0+i*8] + block[4+i*8];

        const int a2 =  block[0+i*8] - block[4+i*8];

        const int a4 = (block[2+i*8]>>1) - block[6+i*8];

        const int a6 = (block[6+i*8]>>1) + block[2+i*8];



        const int b0 = a0 + a6;

        const int b2 = a2 + a4;

        const int b4 = a2 - a4;

        const int b6 = a0 - a6;



        const int a1 = -block[3+i*8] + block[5+i*8] - block[7+i*8] - (block[7+i*8]>>1);

        const int a3 =  block[1+i*8] + block[7+i*8] - block[3+i*8] - (block[3+i*8]>>1);

        const int a5 = -block[1+i*8] + block[7+i*8] + block[5+i*8] + (block[5+i*8]>>1);

        const int a7 =  block[3+i*8] + block[5+i*8] + block[1+i*8] + (block[1+i*8]>>1);



        const int b1 = (a7>>2) + a1;

        const int b3 =  a3 + (a5>>2);

        const int b5 = (a3>>2) - a5;

        const int b7 =  a7 - (a1>>2);



        dst[i + 0*stride] = CLIP( dst[i + 0*stride] + ((b0 + b7) >> 6) );

        dst[i + 1*stride] = CLIP( dst[i + 1*stride] + ((b2 + b5) >> 6) );

        dst[i + 2*stride] = CLIP( dst[i + 2*stride] + ((b4 + b3) >> 6) );

        dst[i + 3*stride] = CLIP( dst[i + 3*stride] + ((b6 + b1) >> 6) );

        dst[i + 4*stride] = CLIP( dst[i + 4*stride] + ((b6 - b1) >> 6) );

        dst[i + 5*stride] = CLIP( dst[i + 5*stride] + ((b4 - b3) >> 6) );

        dst[i + 6*stride] = CLIP( dst[i + 6*stride] + ((b2 - b5) >> 6) );

        dst[i + 7*stride] = CLIP( dst[i + 7*stride] + ((b0 - b7) >> 6) );

    }

}
