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  • Yunqing Wang's avatar
    Do joint motion search iteratively · 60456083
    Yunqing Wang authored
    Allow motion search multiple times iteratively, and break out
    the loop if this search couldn't find better motion vectors.
    Limit the maximum number of search to 2.
    Tests results:
    1. stdhd set: 0.311%(overall psnr); 0.346%(ssim).
    positive gain on 10 out of 16 clips(best: 2.746% on sunflower;
    worst: -0.434% on old_town_cross).
    2. derf set: 0.016%(overall psnr); 0.062%(ssim).
    positive gain on half of the clips(best: 0.499% on bowing;
    worst: -0.387 on city).
    Change-Id: Ibf0a51776d4caf7707be0586346db08128117559