[x264-devel] stride problem on powerpc

[Manuel Rommel]

Hello,

in x264_weight_cost in slicetype.c, line 118, satd_8x8 may be called with a stride of 8. This leads to wrong calculations on powerpc because VEC_DIFF_H is tuned for an input stride of c*16 for pix1.

To address the issue, I wrote a quick patch for satd_8x8_altivec. I’m not sure if that’s the best way to fix it, perhaps the c code can be changed or VEC_DIFF_H could be improved instead of creating a new macro. So feel free to comment. :)

Manuel


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