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avcodec/flacdsp_template: Fix undefined shift in flac_decorrelate_indep_c

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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>
This commit is contained in:
Michael Niedermayer 2016-12-03 16:43:10 +01:00
parent e9003828dd
commit 2f26f3de78
1 changed files with 1 additions and 1 deletions
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libavcodec/flacdsp_template.c
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@ -56,7 +56,7 @@ static void FUNC(flac_decorrelate_indep_c)(uint8_t **out, int32_t **in,
for (j = 0; j < len; j++)
for (i = 0; i < channels; i++)
S(samples, i, j) = in[i][j] << shift;
S(samples, i, j) = (int)((unsigned)in[i][j] << shift);
}
static void FUNC(flac_decorrelate_ls_c)(uint8_t **out, int32_t **in,