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avfilter/avf_showfreqs: Use floating point division in WFUNC_BHANN

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Fixes: CID1322365

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2015-09-03 14:39:08 +02:00
parent 9f6ca28e32
commit 629fcda4da
1 changed files with 1 additions and 1 deletions
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libavfilter/avf_showfreqs.c
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@ -208,7 +208,7 @@ static void generate_window_func(float *lut, int N, int win_func, float *overlap
break;
case WFUNC_BHANN:
for (n = 0; n < N; n++)
lut[n] = 0.62-0.48*FFABS(n/(N-1)-.5)-0.38*cos(2*M_PI*n/(N-1));
lut[n] = 0.62-0.48*FFABS(n/(double)(N-1)-.5)-0.38*cos(2*M_PI*n/(N-1));
*overlap = 0.5;
break;
case WFUNC_SINE: