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avcodec/dcadsp: Fix integer overflow in dmix_add_c()
Fixes: signed integer overflow: 1515225320 + 759416059 cannot be represented in type 'int' Fixes: 29256/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DCA_fuzzer-5719088561258496 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -329,7 +329,7 @@ static void dmix_add_c(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t le
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int i;
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for (i = 0; i < len; i++)
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dst[i] += mul15(src[i], coeff);
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dst[i] += (unsigned)mul15(src[i], coeff);
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}
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static void dmix_scale_c(int32_t *dst, int scale, ptrdiff_t len)
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