• Lauri Kasanen's avatar
    swscale/ppc: VSX-optimize hScale16To* · a2a16206
    Lauri Kasanen authored
    ./ffmpeg -loop 1 -s 1200x1440 -i tux16.png \
        -s 2400x720 -f rawvideo -y -vframes 5 -pix_fmt yuv420p16le -nostats test.raw
    
    ./ffmpeg -loop 1 -s 1200x1440 -i tux16.png \
        -s 2400x720 -f rawvideo -y -vframes 5 -pix_fmt yuv420p -nostats test.raw
    
    32-bit mul, power8 only
    
    2x speedup for hScale8To19_vsx (x86 SSE2 is 2.37):
      30896 UNITS in hscale,    8192 runs,      0 skips
      63956 UNITS in hscale,    8192 runs,      0 skips
    
    2.06 for hScale16To15_vsx:
      30531 UNITS in hscale,    8192 runs,      0 skips
      63161 UNITS in hscale,    8192 runs,      0 skips
    a2a16206
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