tree d17d2b1a10ad9924de659f72d11cd668fdf149f2
parent 287ee40d89f1464dae62d73124648bd69f933ed1
author Mudassir Galagnath <mudassir.galaganath@ittiam.com> 1652707041 +0530
committer Wan-Teh Chang <wtc@google.com> 1652986393 +0000

Disable sf chroma_intra_pruning_with_hog conditionally

The sf chroma_intra_pruning_with_hog prunes the directional chroma
intra modes. Since the sf prune_chroma_modes_using_luma_winner
already constrains the number of chroma directional mode evaluations
to a maximum of 1, the HOG computation and the associated pruning
logic does not seem to help speed-up the chroma mode evaluations.
Hence, the sf chroma_intra_pruning_with_hog is
disabled when prune_chroma_modes_using_luma_winner is enabled.

For AVIF still-image encode,

           Instruction Count
           / Encode Time                BD-Rate Loss(%)
cpu-used     Reduction(%)    psnr      avg.psnrCb  avg.psnrCr  ssim
   4          -0.166        -0.1053    0.0101     -0.1264     -0.1106
   5          -0.257        -0.1262   -0.2161	  -0.3359     -0.1386
   6           1.254        -0.1085   -0.0115     -0.1366     -0.0972
   7          -0.408        -0.3400   -0.0883	  -0.3082     -0.3389
   8          -0.335        -0.0242    0.0423	  -0.0554     -0.0218

STATS_CHANGED

Change-Id: I29517eeb79482dacc6b6a86f28b8d3b5d620c506