fft.h

PIXIL is a small footprint operating environment, complete with PDA PIM applications, a browser and

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 * in the packaging of this file.                                      
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#include <FL/n_x.h>

#ifndef _FFT_H_
#define _FFT_H_

#define FFT_BUFFER_SIZE_LOG 9

#define FFT_BUFFER_SIZE (1 << FFT_BUFFER_SIZE_LOG)

/* sound sample - should be an signed 16 bit value */
typedef short int sound_sample;

#define __cplusplus 1

#ifdef __cplusplus
extern "C"
{
#endif

/* FFT library */
    typedef struct _struct_fft_state fft_state;
    fft_state *fft_init(void);
    void fft_perform(const sound_sample * input, int *output,
		     fft_state * state, int dataFrameSkip);
    void fft_close(fft_state * state);



#ifdef __cplusplus
}
#endif

#endif				/* _FFT_H_ */