1. 09 Apr, 2014 1 commit
    • Yunqing Wang's avatar
      Use source frame difference to make partition decision · 4e66293f
      Yunqing Wang authored
      Calculate the difference variance between last source frame and
      current source frame. The variance is calculated at 16x16 block
      level. The variances are compared to several thresholds to decide
      final partition sizes.
      
      An adaptive strategy is implemented to decide using
      SOURCE_VAR_BASED_PARTITION or FIXED_PARTITION based on motions
      in the video. The switching test is done once every
      search_type_check_frequency frames.
      
      The selection of source_var_thresh needs to be investigated
      further later.
      
      RTC set Borg test showed 0.424% overall psnr gain, and 0.357%
      ssim gain. For clips with large enough static area, the
      encoding speedup is around 2% to 15%.
      
      Change-Id: Id7d268f1d8cbca7fb8026aa4a53b3c77459dc156
      4e66293f
  2. 28 Mar, 2014 2 commits
    • Yaowu Xu's avatar
      Adjust rt speed steps. · 6fc20a84
      Yaowu Xu authored
      This commit adjusted the speed steps in rt mode to make the steps
      more evenly spaced on speed and quality, specifically:
      1. Merged 3 and 4 into one single step 3 and removed confilicting
      features.
      2. Move 8, 7, 6, 5 to be 7, 6, 5, 4 repsectively.
      
      Change-Id: I38d56d61531f3561d772aef953c411c8fb38c063
      6fc20a84
    • Dmitry Kovalev's avatar
      Adding vp9_speed_features.{h, c}. · 0a6d5547
      Dmitry Kovalev authored
      Change-Id: I7d9874da8ff78a2d7e0cf11073af9c30538bc9a6
      0a6d5547