• Jingning Han's avatar
    Speed up mode search depending on relative ref frame position · 6a464eca
    Jingning Han authored
    This commit enables the encoder to record the location of the
    center frame to generate alter reference frame. It then allows to
    skip checking prediction modes of other reference frame types when
    it comes to encode this frame.
    
    The speed 3 runtime is reduced for the test sequences:
    bus at CIF 1000 kbps, 9791 ms -> 9446 ms, i.e., 3.5% speed-up,
    pedestrian at 1080p 2000 kbps, 184043 ms -> 175730 ms, i.e., 4.5%
    speed-up.
    
    No compression performance change observed.
    
    Change-Id: Iacfde3bcc1445964e7a241f239bd6ea11cb94bd1
    6a464eca
vp9_speed_features.h 13.1 KB