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swscale: Fix use of uninitialized values

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(bug probably introduced from a marge of libav)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-06-02 19:26:40 +02:00
parent 5ad38d93e8
commit 877f76ad33
1 changed files with 6 additions and 0 deletions
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6
libswscale/swscale_template.c
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@ -419,6 +419,8 @@ static inline void hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth,
dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha; dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;
xpos+=xInc; xpos+=xInc;
} }
for (i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--)
dst[i] = src[srcW-1]*128;
} }
// *** horizontal scale Y line to temp buffer // *** horizontal scale Y line to temp buffer
@ -465,6 +467,10 @@ static inline void hcscale_fast_c(SwsContext *c, int16_t *dst1, int16_t *dst2,
dst2[i]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha); dst2[i]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);
xpos+=xInc; xpos+=xInc;
} }
for (i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--) {
dst1[i] = src1[srcW-1]*128;
dst2[i] = src2[srcW-1]*128;
}
} }
inline static void hcscale_c(SwsContext *c, uint16_t *dst1, uint16_t *dst2, int dstWidth, inline static void hcscale_c(SwsContext *c, uint16_t *dst1, uint16_t *dst2, int dstWidth,