• Yunqing Wang's avatar
    Optimize vp9_dc_only_idct_add_c function · 35bc02c6
    Yunqing Wang authored
    Wrote SSE2 version of vp9_dc_only_idct_add_c function. In order to
    improve performance, clipped the absolute diff values to [0, 255].
    This allowed us to keep the additions/subtractions in 8 bits.
    Test showed an over 2% decoder performance increase.
    
    Change-Id: Ie1a236d23d207e4ffcd1fc9f3d77462a9c7fe09d
    35bc02c6
vp9_idct.h 2.45 KB