1. 05 Aug, 2014 2 commits
    • Pengchong Jin's avatar
      Directly split the block in partition search · 74593c1e
      Pengchong Jin authored
      This patch allows the encoder to directly split the block
      in partition search, therefore skip searching NONE. It
      computes a score which measures whether 16x16 motion vectors
      from the first pass in the current block are consistent with
      each others. If they are inconsistent and we have enough Q
      to encode, split the block directly, and skip searching NONE.
      
      This feature is under flag CONFIG_FP_MB_STATS. In speed 2,
      it further gives a speedup of 3-8% on sample yt clips as
      compared to the previous version under the same flag. Overall,
      the features under the flag will give 7-15% on typical yt
      clips at up to 6000kbps data rate. The speedup at very high
      data rate is not significant.
      
      For hard stdhd clips:
      park_joy_1080p @ 15000kbps:       504541ms -> 506293ms (-0.35%)
      pedestrian_area_1080p @ 2000kbps: 326610ms -> 290090ms (+11.2%)
      
      The compression performance using the features under the flag:
      derf: -0.068%
      yt:   -0.189%
      hd:   -0.318%
      stdhd:-0.183%
      
      To use the feature, set CONFIG_FP_MB_STATS and turn on
      cpi->use_fp_mb_stats.
      
      Change-Id: Iad58a2966515c8861aa9eb211565b1864048d47f
      74593c1e
    • Pengchong Jin's avatar
      5971e898
  2. 04 Aug, 2014 9 commits
  3. 02 Aug, 2014 2 commits
  4. 01 Aug, 2014 10 commits
  5. 31 Jul, 2014 17 commits