put_pixels_clamped = put_pixels_clamped_mmi;
void dsputil_init_mmi(void){    put_pixels_clamped = put_pixels_clamped_mmi;    //add_pixels_clamped = add_pixels_clamped_mmi;    clear_blocks = clear_blocks_mmi;    ff_idct = ff_mmi_idct;}