[x264-devel] sorry for the misleading predict_16x16_p mmx/sse2 function

马志友 mazy at onewaveinc.com
Tue Sep 27 15:59:10 CEST 2005


hello,everyone

my predict_16x16_p_mmx,predict_16x16_p_sse2 have bugs.
in sse2 ,
	movd    xmm2, ebx        ;i100
	punpcklwd xmm2, xmm2
	punpcklwd xmm2, xmm2
	punpcklwd xmm2, xmm2
should be include in the loop.

however,it increase bitrate slightly,and hard to reduce encode time.
it seems both functions have other bugs.

the performance improvement owns to the other predict mmx functions.

sorry.

= = = = = = = = = = = = = = = = = = = =
			

regards,
zorro
2005-09-27



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