• Yunqing Wang's avatar
    Full search SAD function optimization in SSE4.1 · 71ecb5d7
    Yunqing Wang authored
    Use mpsadbw, and calculate 8 sad at once. Function list:
    vp8_sad16x16x8_sse4
    vp8_sad16x8x8_sse4
    vp8_sad8x16x8_sse4
    vp8_sad8x8x8_sse4
    vp8_sad4x4x8_sse4
    
    (test clip: tulip)
    For best quality mode, this gave encoder a 5% performance boost.
    For good quality mode with speed=1, this gave encoder a 3%
    performance boost.
    
    Change-Id: I083b5a39d39144f88dcbccbef95da6498e490134
    71ecb5d7
configure 16.1 KB