#include "dsp.h"

Macros
#define	DEFAULT_FILTER_FUNCTION dsp16_filt_lpfirdesign_windowed_sinc

#define	DEFAULT_WINDOW_FUNCTION dsp16_win_hann

#define	DSP16_RESAMPLING_FILTER(x_num, data) sum += ph[(x_num+data)] * pvect2[-(x_num+data)];

#define	DSP16_RESAMPLING_FUNCTION_NAME(x_num, data) TPASTE2(dsp16_resampling_kernel_x, x_num),

#define	DSP16_RESAMPLING_KERNEL_X_FCT(x_num, data)

#define	DSP16_RESAMPLING_NO_LOOP_FUNCTION_NAME(x_num, data) TPASTE2(dsp16_resampling_no_loop_kernel_x, x_num),

#define	DSP16_RESAMPLING_NO_LOOP_KERNEL_X_FCT(x_num, data)

#define	LOOP_UNROLL 6

#define	LOOP_UNROLL_PLUS_ONE 7

#define	NB_PTS_TO_INTERPOLATE 3

Functions
void	dsp16_resampling_compute (dsp_resampling_t dsp_resampling, dsp16_t output, dsp16_t *input, int channel)
	The re-sampling computation function. More...

void	dsp16_resampling_free (dsp_resampling_t *dsp_resampling, free_fct_t free_fct)
	Function used to free the previously allocated structure issued by the dsp16_resampling_setup function. More...

int	dsp16_resampling_get_output_current_buffer_size (dsp_resampling_t *dsp_resampling)
	Returns the current length in sample of the output signal. More...

int	dsp16_resampling_get_output_max_buffer_size (dsp_resampling_t *dsp_resampling)
	Returns the maximal length in sample of the output signal. More...

bool	dsp16_resampling_link (dsp_resampling_t dsp_resampling_output, dsp_resampling_t dsp_resampling_input)
	Link a stream previously re-sampled using the dsp_resampling_input resampling structure with the new re-sampling structure dsp_resampling_output. This is used to keep the continuity with two pieces of a stream re-sampled using two different re-sampling parameters. More...

static int	dsp16_resampling_no_loop_kernel_x0 (dsp16_t vect1, dsp16_t vect2, int vect2_size, dsp16_t h, int n_tap, int interpolation_ratio, int decimation_ratio, int pcounter, int *pn)

static void	dsp16_resampling_polynomial_interpolation (dsp16_t y[4], dsp16_t output_y[NB_PTS_TO_INTERPOLATE])

dsp_resampling_t *	dsp16_resampling_setup (int input_sample_rate, int output_sample_rate, int buffer_size, int filter_order, int nb_channels, malloc_fct_t malloc_fct, dsp16_resampling_options_t *options)
	This function is the 16-bit signal resampling setup function. It has to be called only once at the initialization of the resampling process. More...

static int	dsp_op_gcd (int m, int n)

#define DEFAULT_FILTER_FUNCTION dsp16_filt_lpfirdesign_windowed_sinc

Referenced by dsp16_resampling_setup().

#define DEFAULT_WINDOW_FUNCTION dsp16_win_hann

Referenced by dsp16_resampling_setup().

#define DSP16_RESAMPLING_FILTER	(	x_num,
		data
	)	sum += ph[(x_num+data)] * pvect2[-(x_num+data)];

#define DSP16_RESAMPLING_FUNCTION_NAME	(	x_num,
		data
	)	TPASTE2(dsp16_resampling_kernel_x, x_num),

Referenced by dsp16_resampling_compute().

#define DSP16_RESAMPLING_KERNEL_X_FCT	(	x_num,
		data
	)

#define DSP16_RESAMPLING_NO_LOOP_FUNCTION_NAME	(	x_num,
		data
	)	TPASTE2(dsp16_resampling_no_loop_kernel_x, x_num),

Referenced by dsp16_resampling_compute().

#define DSP16_RESAMPLING_NO_LOOP_KERNEL_X_FCT	(	x_num,
		data
	)

#define LOOP_UNROLL 6

Referenced by dsp16_resampling_compute().

#define LOOP_UNROLL_PLUS_ONE 7

Referenced by dsp16_resampling_compute().

#define NB_PTS_TO_INTERPOLATE 3

Referenced by dsp16_resampling_compute(), dsp16_resampling_polynomial_interpolation(), and dsp16_resampling_setup().

static int dsp16_resampling_no_loop_kernel_x0	(	dsp16_t *	vect1,
		dsp16_t *	vect2,
		int	vect2_size,
		dsp16_t *	h,
		int	n_tap,
		int	interpolation_ratio,
		int	decimation_ratio,
		int *	pcounter,
		int *	pn
	)

static

References vect1.

static void dsp16_resampling_polynomial_interpolation	(	dsp16_t	y[4],
		dsp16_t	output_y[NB_PTS_TO_INTERPOLATE]
	)

static

References NB_PTS_TO_INTERPOLATE.

Referenced by dsp16_resampling_compute().

static int dsp_op_gcd	(	int	m,
		int	n
	)

static

Referenced by dsp16_resampling_setup().

Microchip® Advanced Software Framework

Macros

Functions