• Jingning Han's avatar
    Enable reduced set of intra modes in rtc coding · d66a63f0
    Jingning Han authored
    This commit enables the use of DC, vertical, and horizontal intra
    prediction mode in rtc non-RD mode decision. When the best cost value
    of inter modes is above a given threshold, the encoder runs the
    above three intra modes and selects the one that has minimum
    prediction residual in terms of SAD.
    
    This together with recent changes on non-RD mode decision and coding
    control improves compression performance of speed -6 by
    derf  91%
    yt    61%
    hd    46%
    stdhd 52%
    
    In terms of encoding speed, it is about 3 times faster than speed -5.
    
    Change-Id: I6b483bfd0307e6482bb22a6676ae4e25a52b1310
    d66a63f0
vp9_pickmode.c 10.8 KB