• Marco's avatar
    Enable non-rd mode coding on key frame, for speed 6. · 8fd3f9a2
    Marco authored
    For key frame at speed 6: enable the non-rd mode selection in speed setting
    and use the (non-rd) variance_based partition.
    
    Adjust some logic/thresholds in variance partition selection for key frame only (no change to delta frames),
    mainly to bias to selecting smaller prediction blocks, and also set max tx size of 16x16.
    
    Loss in key frame quality (~0.6-0.7dB) compared to rd coding,
    but speeds up key frame encoding by at least 6x.
    Average PNSR/SSIM metrics over RTC clips go down by ~1-2% for speed 6.
    
    Change-Id: Ie4845e0127e876337b9c105aa37e93b286193405
    8fd3f9a2
vp9_avg_test.cc 4.37 KB