[x264-devel] Re: x264_center_filter_mmxext: Use of uninitialised value

Mathieu Monnier manao at melix.net
Fri May 6 20:06:02 CEST 2005


Hi again,

Thanks to fenrir's welcomed comments, here is a patch correcting the
infamous x264_center_filter_mmxext function. The .data section has
disappeared, which should hopefully solve compilation issues some were
experiencing, and valgrind doesn't complain anymore.

The issue was in fact a certain bad tendency i had to use esp and
increment it when making the first pass on a row, which made valgrind
progressively mark the temporary buffer as uninitialized.

I tested the modifications against the c version, and results on midly
noised clips and on foreman seem to be identical.

Regards,

Mathieu

PS : for the moderator(s), please drop the previous mail
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