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avcodec/pngdec: fix () in OP_* macros 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-05-25 19:24:30 +02:00
parent ad733089b0
commit c163f5e601
1 changed files with 2 additions and 2 deletions
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4
libavcodec/pngdec.c
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@ -237,7 +237,7 @@ static void png_filter_row(PNGDSPContext *dsp, uint8_t *dst, int filter_type,
*(int *)(dst + i) = p;
}
} else {
#define OP_SUB(x, s, l) x + s
#define OP_SUB(x, s, l) ((x) + (s))
UNROLL_FILTER(OP_SUB);
}
break;
@ -249,7 +249,7 @@ static void png_filter_row(PNGDSPContext *dsp, uint8_t *dst, int filter_type,
p = (last[i] >> 1);
dst[i] = p + src[i];
}
#define OP_AVG(x, s, l) (((x + l) >> 1) + s) & 0xff
#define OP_AVG(x, s, l) (((((x) + (l)) >> 1) + (s)) & 0xff)
UNROLL_FILTER(OP_AVG);
break;
case PNG_FILTER_VALUE_PAETH: