format.c File Reference

#include <math.h>
#include "common.h"

Macros
#define	FFT_LEN   XMMSC_VISUALIZATION_WINDOW_SIZE
#define	FFT_BITS   9
#define	AMP_LOG_SCALE_THRESHOLD0   0.001f
#define	AMP_LOG_SCALE_DIVISOR   6.908f /* divisor = -log threshold */
#define	FREQ_LOG_SCALE_BASE   2.0f

Functions
void	fft_init ()
short	fill_buffer (int16_t *dest, xmmsc_vis_properties_t *prop, int channels, int size, short *src)

Macro Definition Documentation

#define AMP_LOG_SCALE_DIVISOR   6.908f /* divisor = -log threshold */

#define AMP_LOG_SCALE_THRESHOLD0   0.001f

#define FFT_BITS   9

#define FFT_LEN   XMMSC_VISUALIZATION_WINDOW_SIZE

Referenced by fft_init().

#define FREQ_LOG_SCALE_BASE   2.0f

Function Documentation

void fft_init

(

void

)

Referenced by send_data().

short fill_buffer	(	int16_t *	dest,
		xmmsc_vis_properties_t *	prop,
		int	channels,
		int	size,
		short *	src
	)

Referenced by write_shm(), and write_udp().