• Yunqing Wang's avatar
    Add motion search skipping in first pass · 6a819ce4
    Yunqing Wang authored
    This change added a motion search skipping mechanism similar
    to what we did in second pass. For a macroblock that is very
    similar to the macroblock at same location on last frame,
    we can set its mv to be zero, and skip motion search. This
    improves first-pass performance for slide shows and video
    conferencing clips with a slight PSNR loss.
    Change-Id: Ic73f9ef5604270ddd6d433170091d20361dfe229