/* Transform the provided matrix using the H.264 modified DCT.  */
static void h264_dct_c(DCTELEM block[4][4])
/* Transform the provided matrix using the H.264 modified DCT.  */
static void h264_dct_c(DCTELEM block[4][4])
{
    DCTELEM pieces[4][4];
    DCTELEM a, b, c, d;
    H264_DCT_PART1(0);
    H264_DCT_PART1(1);
    H264_DCT_PART1(2);
    H264_DCT_PART1(3);
    H264_DCT_PART2(0);
    H264_DCT_PART2(1);
    H264_DCT_PART2(2);
    H264_DCT_PART2(3);
}