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-rw-r--r--common/fft.h12
1 files changed, 9 insertions, 3 deletions
diff --git a/common/fft.h b/common/fft.h
index e77c53c2a7..bc58f1dded 100644
--- a/common/fft.h
+++ b/common/fft.h
@@ -34,6 +34,8 @@
namespace Common {
+class CosineTable;
+
/**
* (Inverse) Fast Fourier Transform.
*
@@ -64,13 +66,17 @@ private:
Complex *_expTab;
Complex *_tmpBuf;
- const float *_tSin;
- const float *_tCos;
-
int _splitRadix;
int _permutation;
static int splitRadixPermutation(int i, int n, int inverse);
+
+ CosineTable *_cosTables[13];
+
+ void fft4(Complex *z);
+ void fft8(Complex *z);
+ void fft16(Complex *z);
+ void fft(int n, int logn, Complex *z);
};
} // End of namespace Common