• Urvang Joshi's avatar
    Move palette code from libvpx/nextgenv2 to aomedia. · 764d1266
    Urvang Joshi authored
    Palette code originally by huisu@. Gives 11.68% BDRate improvement on
    screen content set.
    
    Last 7 small speedup patches from me, giving 10% speedup overall for
    screen content set.
    
    From aomedia/master:
    Revert 57fa6267 : Remove color_index_map
    
    From libvpx/nextgenv2:
    c93e5cc3 : Bring palette back to nextgenv2
    827e1b3f : Add test for screen content coding tools in end to end test
    78b0bd0a : Complete (mostly) migration of palette mode
    8a128c2a : Fixes for Palette mode
    4ab00912 : Palette mode: record selected transform type
    cbb8be76 : Set block size upper bound for Palette mode
    bb0e6921 : Convert palette from double to float.
    a0a23b7f : faster code: replace nested for loops by memcpy().
    016a5daa : Palette code: simpler and faster duplicate removal
    d0000208 : Palette code cleanup
    6dde8018 : Use built-in qsort(); create remove_dup() method.
    f746c103 : Handle centroid rounding inside palette.c itself.
    d68c7b6d : Palette: count Y colors only for screen content.
    f1906e96 : Palette code: remove the use of same if condition twice.
    
    Locally made sure all combinations of "--enable-ext-intra" and/or
    "--enable-palette" and/or "--enable-aom-highbitdepth" build OK.
    
    P.S. Note for future reference:
    EXT_INTRA experiment has only been moved *partially* to aomedia at this
    point. If and when the rest is moved to aomedia, EXT_INTRA + PALETTE
    combo needs to be moved to aomedia as well.
    
    Change-Id: I8826780014ec8a88281e56c8258b7c966121b46f
    764d1266
decodeframe.c 84.1 KB