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src/spectral/fft.c: fix in and out sizes for ooura

--- a/src/spectral/fft.c

+++ b/src/spectral/fft.c

@@ -133,8 +133,8 @@

   s->winsize = winsize;

   s->fft_size = winsize / 2 + 1;

   s->compspec = new_fvec(winsize);

-  s->in    = AUBIO_ARRAY(double, s->fft_size);

-  s->out   = AUBIO_ARRAY(double, s->fft_size);

+  s->in    = AUBIO_ARRAY(double, s->winsize);

+  s->out   = AUBIO_ARRAY(double, s->winsize);

   s->ip    = AUBIO_ARRAY(int   , s->fft_size);

   s->w     = AUBIO_ARRAY(double, s->fft_size);

   s->ip[0] = 0;