---
libswscale/swscale.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index ddfafbe..d05e681 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -589,8 +589,8 @@ static int swScale(SwsContext *c, const uint8_t* src[],
} else {
assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf +
vLumBufSize*2);
assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf +
vChrBufSize*2);
- if (c->yuv2packed1 && vLumFilterSize == 1 && vChrFilterSize ==
2) { //unscaled RGB
- int chrAlpha = vChrFilter[2 * dstY + 1];
+ if (c->yuv2packed1 && vLumFilterSize == 1 && vChrFilterSize <=
2) { //unscaled RGB
+ int chrAlpha = vChrFilterSize == 1 ? 0 : vChrFilter[2 *
dstY + 1];
yuv2packed1(c, *lumSrcPtr, chrUSrcPtr, chrVSrcPtr,
alpPixBuf ? *alpSrcPtr : NULL,
dest[0], dstW, chrAlpha, dstY);
--
1.7.2.1
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