1. 13 May, 2013 1 commit
    • 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
      60456083
  2. 10 May, 2013 2 commits
    • Yunqing Wang's avatar
      Add joint motion search in comp_inter_inter mode(experiment) · 9f5811c2
      Yunqing Wang authored
      In current code, motion vectors got from single prediction mode are used
      in compound prediction mode directly. These motion vectors may not give
      accurate prediction since they are searched independently. In this patch,
      we took Pascal's suggestion, and did joint motion search in compound
      prediction mode to find better motion vectors in this situation.
      Test results:
      Overall PSNR: 0.570%(derf), 0.918%(stdhd);
      SSIM: 0.572%(derf), 1.009%(stdhd);
      
      The encoder is a little slower. This can be improved since some c
      code is used in motion search.
      
      Change-Id: Ib30c9240f6c56c9b070867b4ca89412a76d9f3c6
      9f5811c2
    • Paul Wilkins's avatar
      Avoid calls to get_coef_band(). · 4305dd47
      Paul Wilkins authored
      Use value already computed value to save of calls
      
      Change-Id: I42836698e59c116416ccd75395bebdd11dd609fb
      4305dd47
  3. 09 May, 2013 7 commits
  4. 08 May, 2013 23 commits
  5. 07 May, 2013 7 commits