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preempt possible overflow

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Originally committed as revision 6881 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-11-03 11:07:35 +00:00
parent 5a1553dee3
commit bda2203d56
1 changed files with 1 additions and 1 deletions
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libavcodec/i386/h264dsp_mmx.c
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@ -347,7 +347,7 @@ static void ff_h264_idct8_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride)
"pxor %%mm1 , %%mm4 \n\t"\
"pavgb %%mm2 , %%mm4 \n\t" /* (q0 - p0 + 256)>>1*/\
"pavgb %%mm5 , %%mm3 \n\t"\
"paddb %%mm4 , %%mm3 \n\t" /* d+128+33*/\
"paddusb %%mm4 , %%mm3 \n\t" /* d+128+33*/\
"movq "MANGLE(ff_pb_A1)" , %%mm6 \n\t"\
"psubusb %%mm3 , %%mm6 \n\t"\
"psubusb "MANGLE(ff_pb_A1)" , %%mm3 \n\t"\