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lavc/mdct_template: use lrint instead of floor hack

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Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-11-25 18:08:45 -05:00
parent df679f1264
commit b8e5b1d786
1 changed files with 3 additions and 2 deletions
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5
libavcodec/mdct_template.c
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@ -22,6 +22,7 @@
#include <stdlib.h>
#include <string.h>
#include "libavutil/common.h"
#include "libavutil/libm.h"
#include "libavutil/mathematics.h"
#include "fft.h"
#include "fft-internal.h"
@ -82,8 +83,8 @@ av_cold int ff_mdct_init(FFTContext *s, int nbits, int inverse, double scale)
for(i=0;i<n4;i++) {
alpha = 2 * M_PI * (i + theta) / n;
#if FFT_FIXED_32
s->tcos[i*tstep] = (FFTSample)floor(-cos(alpha) * 2147483648.0 + 0.5);
s->tsin[i*tstep] = (FFTSample)floor(-sin(alpha) * 2147483648.0 + 0.5);
s->tcos[i*tstep] = lrint(-cos(alpha) * 2147483648.0);
s->tsin[i*tstep] = lrint(-sin(alpha) * 2147483648.0);
#else
s->tcos[i*tstep] = FIX15(-cos(alpha) * scale);
s->tsin[i*tstep] = FIX15(-sin(alpha) * scale);