[FFmpeg-devel] [PATCH] libavcodec/ppc/mpegvideoencdsp.c: fix stack smashing in pix_norm1_altivec() and pix_sum_altivec()

[Andreas Cadhalpun]

Hi,

after enabling the altivec optimizations on ppc64el, many fate tests 
failed, some of them with 'stack smashing detected'. For the full build 
log see [1].

The attached patch fixes all the stack smashing crashes.

But I don't know, what causes the other test failures.

Rong Yan, maybe you can have a look?

Best regards,
Andreas


1: 
https://buildd.debian.org/status/fetch.php?pkg=ffmpeg&arch=ppc64el&ver=7%3A2.5.3-1&stamp=1421583916
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