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This commit is contained in:
Jean-Marc Valin 2010-08-26 08:17:49 -04:00
parent 5d937c0223
commit 2cc1fcbda0
1 changed files with 14 additions and 22 deletions
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16
libcelt/kiss_fft.c
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@ -658,12 +658,9 @@ void kiss_fft_free(const kiss_fft_state *cfg)
static void kiss_fft_stride(const kiss_fft_state *st,const kiss_fft_cpx *fin,kiss_fft_cpx *fout,int in_stride) static void kiss_fft_stride(const kiss_fft_state *st,const kiss_fft_cpx *fin,kiss_fft_cpx *fout,int in_stride)
{ {
if (fin == fout)
{
celt_fatal("In-place FFT not supported");
} else {
/* Bit-reverse the input */
int i; int i;
celt_assert2 (fin != fout, "In-place FFT not supported");
/* Bit-reverse the input */
for (i=0;i<st->nfft;i++) for (i=0;i<st->nfft;i++)
{ {
fout[st->bitrev[i]] = fin[i]; fout[st->bitrev[i]] = fin[i];
@ -673,7 +670,6 @@ static void kiss_fft_stride(const kiss_fft_state *st,const kiss_fft_cpx *fin,kis
#endif #endif
} }
kf_work( fout, fin, 1,in_stride, st->factors,st, 1, in_stride, 1); kf_work( fout, fin, 1,in_stride, st->factors,st, 1, in_stride, 1);
}
} }
void kiss_fft(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout) void kiss_fft(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout)
@ -683,16 +679,12 @@ void kiss_fft(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fo
static void kiss_ifft_stride(const kiss_fft_state *st,const kiss_fft_cpx *fin,kiss_fft_cpx *fout,int in_stride) static void kiss_ifft_stride(const kiss_fft_state *st,const kiss_fft_cpx *fin,kiss_fft_cpx *fout,int in_stride)
{ {
if (fin == fout)
{
celt_fatal("In-place FFT not supported");
} else {
/* Bit-reverse the input */
int i; int i;
celt_assert2 (fin != fout, "In-place FFT not supported");
/* Bit-reverse the input */
for (i=0;i<st->nfft;i++) for (i=0;i<st->nfft;i++)
fout[st->bitrev[i]] = fin[i]; fout[st->bitrev[i]] = fin[i];
ki_work( fout, fin, 1,in_stride, st->factors,st, 1, in_stride, 1); ki_work( fout, fin, 1,in_stride, st->factors,st, 1, in_stride, 1);
}
} }
void kiss_ifft(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout) void kiss_ifft(const kiss_fft_state *cfg,const kiss_fft_cpx *fin,kiss_fft_cpx *fout)