Recherche avancée

Médias (3)

Mot : - Tags -/spip

Autres articles (102)

Sur d’autres sites (17313)

  • Revision d129eea9fa : Merge "Further clean up of speed 4"

    4 octobre 2013, par Yaowu Xu

    Merge "Further clean up of speed 4"

  • Revision b03d3da9c1 : Merge "Speed setting review."

    3 octobre 2013, par Paul Wilkins

    Merge "Speed setting review."

  • Revision 71b43b0ff0 : Clean ups of the subpel search functions Removes some unused code and speed fea

    7 août 2013, par Deb Mukherjee

    Changed Paths :
     Modify /vp9/encoder/vp9_mbgraph.c


     Modify /vp9/encoder/vp9_mcomp.c


     Modify /vp9/encoder/vp9_mcomp.h


     Modify /vp9/encoder/vp9_onyx_if.c


     Modify /vp9/encoder/vp9_onyx_int.h


     Modify /vp9/encoder/vp9_rdopt.c


     Modify /vp9/encoder/vp9_temporal_filter.c



    Clean ups of the subpel search functions

    Removes some unused code and speed features, and organizes the
    interfaces for fractional mv step functions for use in new speed
    features to come.

    In the process a new speed feature - number of iterations per
    step during the subpel search - is exposed.

    No change when this parameter is set as the original value of 3.

    Results :
    subpel_iters_per_step = 3 : baseline
    subpel_iters_per_step = 2 : psnr -0.067%, 1% speedup
    subpel_iters_per_step = 1 : psnr -0.331%, 3-4% speedup

    Change-Id : I2eba8a21f6461be8caf56af04a5337257a5693a8