• Jingning Han's avatar
    Constrain motion vector projection range · b74a72bf
    Jingning Han authored
    Constrain the maximum motion vector projection range to be within
    +/-32 pixels in the vertical direction and +/-64 pixels in the
    horizontal direction.
    
    Such constraints allow a fixed amount of reference motion vector
    load to SRAM for each 64x64 block size, independent of the frame
    size. The wider range in the horizontal direction can be stored in
    the SRAM and reused by next 64x64 block. The compression performance
    loss is 0.03% for lowres and 0.04% for midres.
    
    Change-Id: I7f1c136363b136b1f2fa9f7c962a791c8e91a976
    b74a72bf
mvref_common.c 70.1 KB