mirror of https://git.ffmpeg.org/ffmpeg.git
preempt possible overflow
Originally committed as revision 6881 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -347,7 +347,7 @@ static void ff_h264_idct8_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride)
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"pxor %%mm1 , %%mm4 \n\t"\
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"pxor %%mm1 , %%mm4 \n\t"\
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"pavgb %%mm2 , %%mm4 \n\t" /* (q0 - p0 + 256)>>1*/\
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"pavgb %%mm2 , %%mm4 \n\t" /* (q0 - p0 + 256)>>1*/\
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"pavgb %%mm5 , %%mm3 \n\t"\
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"pavgb %%mm5 , %%mm3 \n\t"\
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"paddb %%mm4 , %%mm3 \n\t" /* d+128+33*/\
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"paddusb %%mm4 , %%mm3 \n\t" /* d+128+33*/\
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"movq "MANGLE(ff_pb_A1)" , %%mm6 \n\t"\
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"movq "MANGLE(ff_pb_A1)" , %%mm6 \n\t"\
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"psubusb %%mm3 , %%mm6 \n\t"\
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"psubusb %%mm3 , %%mm6 \n\t"\
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"psubusb "MANGLE(ff_pb_A1)" , %%mm3 \n\t"\
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"psubusb "MANGLE(ff_pb_A1)" , %%mm3 \n\t"\
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