Log of /branches/dev-api-4/xvidcore/src/motion/sad.h
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Modified
Thu Nov 13 23:11:24 2003 UTC (20 years, 7 months ago) by
edgomez
File length: 3977 byte(s)
Diff to
previous 1142
MMXed the calculation of SSE for 8x8 16bit blocks. This helps quite
a lot VHQ=4 mode.
My tests show with trellis:chroma_me:
- ~20% speed improvement for vhq=4.
- at least 5% when using vhq=1.
Of course this speedup vanishes if more CPU intensive features are
used. CruNcher who used gmc/qpel, noticed "only" a ~5% speed
improvement.
NB: i'm of course talking about overall speed improvement. Such a
small patch for such a big improvement :-)
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