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avcodec/flacdsp_template: Fix undefined shift in flac_decorrelate_indep_c
Fixes: left shift of negative value Fixes: 668346-media Found-by: Matt Wolenetz <wolenetz@google.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit acc163c6ab52d2235767852262c64c7f6b273d1c) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -56,7 +56,7 @@ static void FUNC(flac_decorrelate_indep_c)(uint8_t **out, int32_t **in,
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for (j = 0; j < len; j++)
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for (i = 0; i < channels; i++)
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S(samples, i, j) = in[i][j] << shift;
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S(samples, i, j) = (int)((unsigned)in[i][j] << shift);
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}
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static void FUNC(flac_decorrelate_ls_c)(uint8_t **out, int32_t **in,
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