1. 16 Apr, 2014 1 commit
    • Paul Wilkins's avatar
      Fix rate control bug. · 658daf36
      Paul Wilkins authored
      Fix rate control bug whereby the rate factor heuristics
      were being updated on arf overlays causing a rate surge
      for a few frames followed by a corrective drop.
      This fix eliminates many of the overshoot problems that
      we were seeing on hard clips (even without applying
      stricter vbr rate control) and also helps quality on
      almost all clips with some hard clips improving by >5%.
      Overall quality results measured at speed 2.
      Derf  +1.78% opsnr , +2.44% SSIM
      Stdhd +2.41% opsnr, +2.85% SSIM
      Change-Id: I2369df6295c2705963fa6307877f6acb304bcc39
  2. 11 Apr, 2014 4 commits
    • Dmitry Kovalev's avatar
      Adding vp9_rc_update_framerate() function. · 335a18ad
      Dmitry Kovalev authored
      Change-Id: Ie0c905b6f32a37e4360bbb44ceeae77c42ad1dc5
    • Dmitry Kovalev's avatar
      vp9_rc_postencode_update() cleanup. · 93169f8b
      Dmitry Kovalev authored
      Change-Id: Idb1289aa0eadff8f75dcf995547ab3a1b9e27375
    • Paul Wilkins's avatar
      Adjust active minQ calculation for normal frames. · 1d975543
      Paul Wilkins authored
      This increases the range of Q values available to
      normal inter frames to allow encoder a better chance
      to hit the target rate.
      Change-Id: I33cd96469a46577fdcea631e26d3355710909e6d
    • Paul Wilkins's avatar
      Change Qlimit for arf kf. · d83f6f06
      Paul Wilkins authored
      The limits applied under the flag
      behaved in an undesirable way if the gap between
      active_worst_quality and active_best_quality was
      In this patch, the adjustment is made using the
      vp9_compute_qdelta_by_rate() function and fixed
      rate multiplier values. Hence it is not impacted by
      the relative value of active_best_quality.
      Change-Id: I93b3308e04ade1e4eb5af63edf64f91cd3700249
  3. 10 Apr, 2014 4 commits
  4. 09 Apr, 2014 1 commit
  5. 08 Apr, 2014 1 commit
  6. 07 Apr, 2014 6 commits
  7. 03 Apr, 2014 1 commit
  8. 02 Apr, 2014 6 commits
    • Deb Mukherjee's avatar
      Rate ctrl changes to track target bitrates closer · 97f4fb7b
      Deb Mukherjee authored
      Turns off the DISABLE_RC_LONG_TERM_MEM macro and makes other changes
      in the way the bits are updated, to make 2-pass rate control track
      target bitrates closer.
      Change-Id: I5f3be4b11c2908e6a9a9a1dd4fcf4e65531c44d8
    • Jingning Han's avatar
      Make frame level quantization change a parameter · d8b8d87e
      Jingning Han authored
      Parameterize the frame level quantization index used in non-RD
      coding flow with cbr.
      Change-Id: I79cfbd9c32c0d0fc33ad720d2180432e910baf7a
    • Jingning Han's avatar
      Adjust rate allocation in non-RD coding mode · 751d002f
      Jingning Han authored
      This commit reduces the frequency of frames using finer quantizer
      in non-RD coding flow, and slightly tune up the quantizer resolution
      when used. It provides 1.7% compression gains in speed -5 at no speed
      Change-Id: I430249a51260a841a0402666e5ec1566e4f7d5a6
    • Paul Wilkins's avatar
      Add speed feature for recode tolerance. · 769cd78f
      Paul Wilkins authored
      The new tolerance is a little higher than before (especially
      for kf/gf/arf) so this change gives an encode speed up
      for some clips up for speeds 0-2.
      Change-Id: I63f7d6c9cc11c7f58742f41e250dcd3eab1741eb
    • Dmitry Kovalev's avatar
      Adding local pointer variables referencing REATE_CONTROL struct. · 21b8fc4c
      Dmitry Kovalev authored
      Change-Id: I1d8c312a599db505a023e5cd0cc4ba2b8f696a2e
    • Marco Paniconi's avatar
      Remove the q division by 3 for first frame. · 939f0e74
      Marco Paniconi authored
      This code/setting was actually not used (since speed features were not set on first frame,
      until a recent change) and should be removed.
      In CBR mode, the q value for the first frame can be controlled by setting
      the target size via the parameters rc_buf_initial_sz (and max_intra_size_pct).
      Change-Id: I65afc64972b36c449bd5a8c25800e65da5389066
  9. 01 Apr, 2014 1 commit
    • Paul Wilkins's avatar
      Speed setting correction to max q estimate. · 992c41d2
      Paul Wilkins authored
      Use a crude correction factor to correct for
      lower compression efficiency at higher encode
      speeds when estimating the max Q for the
      Change-Id: I5ae377647f4adf5e91d700a8791fb3b8f70efc73
  10. 31 Mar, 2014 1 commit
    • Jingning Han's avatar
      Apply finer quantizer to partition search frames in non-RD flow · 99893f24
      Jingning Han authored
      This commit optimizes the bit allocation for the non-RD coding flow.
      It applies slightly better quantizer to the frames, where all blocks
      run a non-RD partition search. Such frames typically have better
      rate-distortion trade off, thus improving the reconstruction quality
      for next few frames reference at reasonably low increment in rate
      The coding performance for rtc set at speed -5 with error-resilient
      tuned on and rate control set as cbr is improved by 19.58%. It improved
      the coding speed by about 10% for a portion of local test clips.
      Change-Id: I9d56696cd4359dc8136ca10aff10fff05aaa2686
  11. 28 Mar, 2014 1 commit
  12. 24 Mar, 2014 2 commits
  13. 18 Mar, 2014 1 commit
  14. 17 Mar, 2014 2 commits
  15. 04 Mar, 2014 1 commit
  16. 27 Feb, 2014 1 commit
  17. 26 Feb, 2014 1 commit
  18. 25 Feb, 2014 1 commit
    • Deb Mukherjee's avatar
      Adds variance based fixed size partitioning · 10bae825
      Deb Mukherjee authored
      Adds a method for determining a fixed size partition based on
      variance of a 64x64 SB. This method is added to rtc speed 6.
      Also fixes a bug in rtc_use_partition() and includes some
      refactoring related to partitioning search, and some cosmetics.
      Currently compared to speed 5, the coding efficiency of speed 6
      is -19% and that of speed 7 is -55%, in cbr mode.
      Change-Id: I057e04125a8b765906bb7d4bf7a36d1e575de7c6
  19. 18 Feb, 2014 1 commit
  20. 14 Feb, 2014 2 commits
  21. 13 Feb, 2014 1 commit
    • Marco Paniconi's avatar
      Fix target frame size setting, for 1pass cbr. · e590e087
      Marco Paniconi authored
      Only use layered average size if number_temporal_layers > 1.
      Also removed unneeded commented-out line, and change some parameter
      setting in vpx_temporal_scalable_patterns.c
      Change-Id: Ic86e43e7daf0313e8c5a4aba1497299158111955