[x264-devel] PPC vector code problem: wrong output

[David Wolstencroft]

Manuel,

I'll try to check this out over the next few days.

Can you provide the CLI you were using to encode the video?

- David

On Wed, Nov 18, 2009 at 11:16 AM, <maaanuuu at gmx.net> wrote:

> Hello,
>
> I noticed the output of Altivec code doesn't match scalar code. (480x260
> video, standard settings, gcc 4.0.1, apple build 5493). I tracked the
> problem down to x264_satd_8x8_altivec called in x264_slicetype_mb_cost in
> slicetype.c, line 440. I think pix1 loads cross 16 byte boundaries, so
> VEC_DIFF_H fails to load pix1 properly.
>
> As I don't know how to fix it the best way, I can't provide a patch.
>
> Regards,
> Manuel
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