1. 09 Dec, 2010 2 commits
    • Fritz Koenig's avatar
      vp8 fast quantizer sse2 optimizations for eob. · e0cf330c
      Fritz Koenig authored
      Changed the end of block computation to use pmaxw.  Removed
      additional pushing and popping of registers that was not needed.
      
      Change-Id: I08cb9b424513cd8a2c7ad8cea53b4e2adc66ef98
      e0cf330c
    • Paul Wilkins's avatar
      Correct q_low and q_high limits for the recode loop · c63fc881
      Paul Wilkins authored
      Corrected the initial Q range limits for the recode loop
      to reflect the current allowed range for the frame.
      
      In experimental work on constrained quality this bug was
      causing unnecessary recodes.
      
      Change-Id: I7e256fbfa681293b0223fe21ec329933d76c229f
      c63fc881
  2. 08 Dec, 2010 2 commits
  3. 07 Dec, 2010 4 commits
  4. 06 Dec, 2010 4 commits
  5. 04 Dec, 2010 2 commits
    • Paul Wilkins's avatar
      Merge "Change to inter_minq table." · ccb03484
      Paul Wilkins authored
      ccb03484
    • Paul Wilkins's avatar
      Change to inter_minq table. · cec6a596
      Paul Wilkins authored
      The inter_minq table controls the range of quantizers available
      for a particular frame in two pass relative to a max Q value.
      
      The changes reduces the range somewhat. The effect of this
      was a small increase (0.3% average) in psnr for the test set
      but it should also help encode speed somewhat for higher
      quality modes as it will reduce the number of iterations in the
      recode loop.
      
      The change damps the range of quantizers available locally
      within a section of a clip and should therefore help keep quality
      more uniform. If there is systematic overshoot or undershoot the
      range can shift gradually to accommodate. However, there is
      some increased risk of overshoot or undershoot against the target
      bit rate in VBR mode and this risk will be more pronounced for short
      clips.
      
      The change damps the range of quantizers available locally
      within a section of a clip and should therefore help keep quality
      more uniform. If there is systematic overshoot or undershoot the
      range can shift gradually to accommodate. However, there is
      some increased risk of overshoot or undershoot against the
      target bit rate in VBR mode and this risk will be more
      pronounced for short clips.
      
      Change-Id: I84465567d49ae767c6c73ff2a2aac30c895adb52
      cec6a596
  6. 03 Dec, 2010 2 commits
    • Yunqing Wang's avatar
      Improve MV prediction accuracy to achieve performance gain · c3bbb291
      Yunqing Wang authored
      Add vp8_mv_pred() to better predict starting MV for NEWMV
      mode in vp8_rd_pick_inter_mode(). Set different search
      ranges according to MV prediction accuracy, which improves
      encoder performance without hurting the quality. Also,
      as Yaowu suggested, using diamond search result as full
      search starting point and therefore adjusting(reducing)
      full search range helps the performance.
      
      Change-Id: Ie4a3c8df87e697c1f4f6e2ddb693766bba1b77b6
      c3bbb291
    • John Koleszar's avatar
      Merge 'Add simple version of activity masking.' · 5e76dfcc
      John Koleszar authored
      Merge commit 'refs/changes/79/779/2' of
          https://review.webmproject.org/p/libvpx
      
      Conflicts:
      	vp8/encoder/encodeintra.c
      	vp8/encoder/encodemb.c
      
      Change-Id: Id607063fabe92d99eeb3c380e8ca670b01bfb3ef
      5e76dfcc
  7. 01 Dec, 2010 1 commit
    • Fritz Koenig's avatar
      Set refresh_alt_ref_frame on keyframe encode. · 9c8ad79f
      Fritz Koenig authored
      On a keyframe alt ref and golden are refreshed.  The flag was
      not being set and so on the frame after a keyframe, motion
      search would occur on the alt ref frame.  This is not necessary
      because the alt ref frame identical to the last frame in this
      scenario.
      
      Handle corner case where a forward alt-ref frame is put
      directly after a keyframe.
      
      Change-Id: I9be4cf290d694f8cf2f9a31852014b5ccf1504d3
      9c8ad79f
  8. 27 Nov, 2010 1 commit
  9. 25 Nov, 2010 1 commit
    • Pascal Massimino's avatar
      allow dimensions as low as 1 pixel · fd9f9dc0
      Pascal Massimino authored
      remove warning comment in vpxenc.c: in case of 1x1 picture,
      detect_bytes will be equal to '3' and we'll fall back to
      RAW_TYPE.
      fix read_frame() by tracking the pre-read buffer length
      in the struct detect
      
      Change-Id: If1ed86ee5260dcdbc8f9d10da6cbb84a4cc2f151
      fd9f9dc0
  10. 23 Nov, 2010 3 commits
  11. 22 Nov, 2010 2 commits
  12. 19 Nov, 2010 1 commit
  13. 18 Nov, 2010 1 commit
    • Pascal Massimino's avatar
      remove warning · ed5ab7fa
      Pascal Massimino authored
      was having: "vp8/encoder/onyx_if.c:5365: warning: comparison of unsigned expression >= 0 is always true"
      ed5ab7fa
  14. 17 Nov, 2010 7 commits
  15. 16 Nov, 2010 4 commits
  16. 15 Nov, 2010 3 commits
    • Fritz Koenig's avatar
      Remove stack shadowing for x86-x64 for SAD functions. · e1802553
      Fritz Koenig authored
      x86-64 passes arguments in registers.  There is no need to push
      them to the stack before using them.
      
      This fixes 15acc84f where ebx
      was not getting preserved on x86.
      
      Change-Id: I1214b5f818a0201f75ab6ad7d5c6f448e09b16c2
      e1802553
    • Paul Wilkins's avatar
      f4709d28
    • Paul Wilkins's avatar
      Bad cost tables used in ARNR filtering. · 373f5c31
      Paul Wilkins authored
      The use of incorrect mv costing tables in the ARNR sub-pel
      filtering code led to corruption of the altref buffer in some cases,
      particularly at low data rates.
      
      The average gain from this fix is about 0.3% but there are a few
      extreme cases where nasty and visible artifacts manifested and
      for these few data points the improvement is > 10%.
      
      PGW and AWG
      
      Change-Id: I95cc02b196a433e71d0d2bd2b933fe68ed31e796
      373f5c31