dsp_resampling_t Struct Reference
[Signal re-sampling]

#include <dsp_resampling.h>

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Detailed Description

This structure is used to store the context of a resampling process.

Definition at line 137 of file dsp_resampling.h.

Data Fields
int	buffer_size
	The size in sample of this buffer.
dsp_resampling_context_t *	context
	Context of the process.
int	current_buffer_size
	The output buffer size.
int	decimation_factor
	The decimation factor used for the resampling process.
int	filter_order
	The actual order of the filter.
void *	fir_coefs
	An array to store the FIR coefficients of the filter.
int	fs
	The sample rate of the input buffer.
int	interpolation_factor
	The interpolation factor used for the resampling process.
void *	last_samples
	A buffer to store the current buffer + some previous samples.
bool	link_required
	If a clean link between to output buffer is required.
int	nb_channels
	The number of channels.

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Field Documentation

int dsp_resampling_t::buffer_size

The size in sample of this buffer.

Definition at line 148 of file dsp_resampling.h.

Referenced by dsp16_resampling_compute(), dsp16_resampling_get_output_max_buffer_size(), dsp16_resampling_link(), and dsp16_resampling_setup().

dsp_resampling_context_t* dsp_resampling_t::context

Context of the process.

Definition at line 162 of file dsp_resampling.h.

Referenced by dsp16_resampling_compute(), dsp16_resampling_link(), and dsp16_resampling_setup().

int dsp_resampling_t::current_buffer_size

The output buffer size.

Definition at line 156 of file dsp_resampling.h.

Referenced by dsp16_resampling_compute(), and dsp16_resampling_get_output_current_buffer_size().

int dsp_resampling_t::decimation_factor

The decimation factor used for the resampling process.

Definition at line 144 of file dsp_resampling.h.

Referenced by dsp16_resampling_compute(), dsp16_resampling_get_output_max_buffer_size(), dsp16_resampling_link(), and dsp16_resampling_setup().

int dsp_resampling_t::filter_order

The actual order of the filter.

A polyphase filter is used, therefore, this order is equal to desired the order of the filter * the interpolation factor.

Definition at line 154 of file dsp_resampling.h.

Referenced by dsp16_resampling_compute(), dsp16_resampling_get_output_max_buffer_size(), dsp16_resampling_link(), and dsp16_resampling_setup().

void* dsp_resampling_t::fir_coefs

An array to store the FIR coefficients of the filter.

Definition at line 150 of file dsp_resampling.h.

Referenced by dsp16_resampling_compute(), and dsp16_resampling_setup().

int dsp_resampling_t::fs

The sample rate of the input buffer.

Definition at line 140 of file dsp_resampling.h.

Referenced by dsp16_resampling_setup().

int dsp_resampling_t::interpolation_factor

The interpolation factor used for the resampling process.

Definition at line 142 of file dsp_resampling.h.

Referenced by dsp16_resampling_compute(), dsp16_resampling_get_output_max_buffer_size(), dsp16_resampling_link(), and dsp16_resampling_setup().

void* dsp_resampling_t::last_samples

A buffer to store the current buffer + some previous samples.

Definition at line 146 of file dsp_resampling.h.

Referenced by dsp16_resampling_compute(), dsp16_resampling_link(), and dsp16_resampling_setup().

bool dsp_resampling_t::link_required

If a clean link between to output buffer is required.

Definition at line 160 of file dsp_resampling.h.

Referenced by dsp16_resampling_compute(), dsp16_resampling_link(), and dsp16_resampling_setup().

int dsp_resampling_t::nb_channels

The number of channels.

Definition at line 158 of file dsp_resampling.h.

Referenced by dsp16_resampling_link(), and dsp16_resampling_setup().