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• Revision df90d58f4f : Speed up motion estimation using small partitions' result(experiment) Current p

  3 juillet 2013, par Yunqing Wang

  Changed Paths :
   Modify /vp9/encoder/vp9_block.h

  
   Modify /vp9/encoder/vp9_encodeframe.c

  
   Modify /vp9/encoder/vp9_onyx_if.c

  
   Modify /vp9/encoder/vp9_onyx_int.h

  
   Modify /vp9/encoder/vp9_rdopt.c

  
  
  Speed up motion estimation using small partitions' result(experiment)

  Current partition checking starts from small sizes, and then goes up
  to large sizes. This experiment uses the small partitions' motion
  estimation result, which is already available, to speed up the
  large partition's motion estimation. We can decide to skip some
  patition checkings if they are unlikely choices. We could use the
  motion vector(MV) result as current partition's prediction MV, limit
  the search range and reference frame.

  Current result at speed 1 :
  psnr loss : 1.19% for stdhd, 0.287% for derf.
  speed gain : 14% for sunflower(hd), 11% for akiyo.

  Further improvement will be done later.

  Change-Id : I5abfd070e9cace2e91e2a0247d1325df313887ab

• Revision 195061feda : Fix rectangular partition check in speed 1 Make encoder skip rectangular partit

  30 septembre 2013, par Jingning Han

  Changed Paths :
   Modify /vp9/encoder/vp9_encodeframe.c

  
  
  Fix rectangular partition check in speed 1

  Make encoder skip rectangular partition check in speed 1 and above,
  when early termination was triggered in partition split.
  Thanks Guillaume (gmartres@) for catching this issue.

  This change makes bus_cif at 2000kbps speed 1 runtime goes down from
  25612ms to 23438ms (about 9% speed-up), at the expense of -0.235%
  performance down.

  Change-Id : I98613fad081a261d30d5fa206f934ca70601c180

• Revision d12a502ef9 : Merge "Alter Speed 3."

  30 septembre 2013, par Paul Wilkins

  Changed Paths :
   Modify /vp9/encoder/vp9_onyx_if.c

  
  
  Merge "Alter Speed 3."