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next fast size for real FFTs

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Mark Borgerding 2008-08-22 14:05:40 +00:00
parent 48cbba0c55
commit 262fe2297b
1 changed files with 4 additions and 0 deletions
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4
kiss_fft.h
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@ -112,6 +112,10 @@ void kiss_fft_cleanup(void);
*/ */
int kiss_fft_next_fast_size(int n); int kiss_fft_next_fast_size(int n);
/* for real ffts, we need an even size */
#define kiss_fftr_next_fast_size_real(n) \
(kiss_fft_next_fast_size( ((n)+1)>>1)<<1)
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif