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make the reference code use double instead of float where it is easy 

Originally committed as revision 9827 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-07-29 10:11:12 +00:00
parent 86c624af1b
commit 3bdc2fcea6
1 changed files with 4 additions and 4 deletions
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8
libavcodec/fft-test.c
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@ -50,7 +50,7 @@ FFTComplex *exptab;
void fft_ref_init(int nbits, int inverse) void fft_ref_init(int nbits, int inverse)
{ {
int n, i; int n, i;
float c1, s1, alpha; double c1, s1, alpha;
n = 1 << nbits; n = 1 << nbits;
exptab = av_malloc((n / 2) * sizeof(FFTComplex)); exptab = av_malloc((n / 2) * sizeof(FFTComplex));
@ -69,7 +69,7 @@ void fft_ref_init(int nbits, int inverse)
void fft_ref(FFTComplex *tabr, FFTComplex *tab, int nbits) void fft_ref(FFTComplex *tabr, FFTComplex *tab, int nbits)
{ {
int n, i, j, k, n2; int n, i, j, k, n2;
float tmp_re, tmp_im, s, c; double tmp_re, tmp_im, s, c;
FFTComplex *q; FFTComplex *q;
n = 1 << nbits; n = 1 << nbits;
@ -98,7 +98,7 @@ void fft_ref(FFTComplex *tabr, FFTComplex *tab, int nbits)
void imdct_ref(float *out, float *in, int n) void imdct_ref(float *out, float *in, int n)
{ {
int k, i, a; int k, i, a;
float sum, f; double sum, f;
for(i=0;i<n;i++) { for(i=0;i<n;i++) {
sum = 0; sum = 0;
@ -115,7 +115,7 @@ void imdct_ref(float *out, float *in, int n)
void mdct_ref(float *output, float *input, int n) void mdct_ref(float *output, float *input, int n)
{ {
int k, i; int k, i;
float a, s; double a, s;
/* do it by hand */ /* do it by hand */
for(k=0;k<n/2;k++) { for(k=0;k<n/2;k++) {