• Deb Mukherjee's avatar
    Speed feature to binary search dir intramodes · 37501d68
    Deb Mukherjee authored
    This speed feature will skip searching the directional intra prediction
    modes D63, D117, D27, D153 if the best intra mode so far is not one of
    the diagonal, horizontal or vertical directions closest to the respective
    directions being tested. In other words, this implements a sort of
    binary search in the angular domain.
    Speedup: about 9-10%
    Results: -0.05% only on derfraw300.
    Change-Id: I413584c41f2a3e8dabfbdeb40718c8fc4b1d63a2