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avcodec/dvdsubdec: Fix runtime error: left shift of 242 by 24 places cannot be represented in type 'int' 

Fixes: 1080/clusterfuzz-testcase-5353236754071552

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ce7098b8f2)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-05 02:51:13 +02:00
parent ce396b2afa
commit 89683e3a5f
1 changed files with 1 additions and 1 deletions
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2
libavcodec/dvdsubdec.c
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@ -57,7 +57,7 @@ static void yuv_a_to_rgba(const uint8_t *ycbcr, const uint8_t *alpha, uint32_t *
cb = *ycbcr++;
YUV_TO_RGB1_CCIR(cb, cr);
YUV_TO_RGB2_CCIR(r, g, b, y);
*rgba++ = (*alpha++ << 24) | (r << 16) | (g << 8) | b;
*rgba++ = ((unsigned)*alpha++ << 24) | (r << 16) | (g << 8) | b;
}
}