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Code Issues Releases Activity

dsputil_mmx: fix reading prior of the src array in sub_hfyu_median_prediction()

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This should fix the utvideoenc valgrind failure

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-09-27 15:52:21 +02:00
parent 8e1f063efc
commit 7e9830d123
1 changed files with 3 additions and 1 deletions
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4
libavcodec/x86/dsputilenc_mmx.c
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@ -850,8 +850,9 @@ static void sub_hfyu_median_prediction_mmx2(uint8_t *dst, const uint8_t *src1, c
uint8_t l, lt;
__asm__ volatile(
"movq (%1, %0), %%mm0 \n\t" // LT
"psllq $8, %%mm0 \n\t"
"1: \n\t"
"movq -1(%1, %0), %%mm0 \n\t" // LT
"movq (%1, %0), %%mm1 \n\t" // T
"movq -1(%2, %0), %%mm2 \n\t" // L
"movq (%2, %0), %%mm3 \n\t" // X
@ -866,6 +867,7 @@ static void sub_hfyu_median_prediction_mmx2(uint8_t *dst, const uint8_t *src1, c
"psubb %%mm4, %%mm3 \n\t" // dst - pred
"movq %%mm3, (%3, %0) \n\t"
"add $8, %0 \n\t"
"movq -1(%1, %0), %%mm0 \n\t" // LT
"cmp %4, %0 \n\t"
" jb 1b \n\t"
: "+r" (i)