Resample Class Reference

#include <resample.h>

Collaboration diagram for Resample:

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Public Member Functions
	Resample (File *file, int channels)
	~Resample ()
void	reset (int channel=-1)
double	blackman (int i, double offset, double fcn, int l)
int	get_output_size (int channel)
void	read_output (double *output, int channel, int size)
void	resample_chunk (double *input, long in_len, int in_rate, int out_rate, int channel)
int	resample (double *output, long out_len, int in_rate, int out_rate, int channel, long in_position, long out_position)
virtual void	read_chunk (double *input, long len, int &reseek, int iteration)
Data Fields
double **	old
double *	itime
double **	output_temp
long *	output_size
long *	output_temp_start
long	output_allocation
double *	input
long *	input_chunk_end
long	input_size
int	channels
int *	resample_init
double	last_ratio
double	blackfilt [2 *BPC+1][BLACKSIZE]
File *	file
long *	last_out_end

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Detailed Description

Definition at line 9 of file resample.h.

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Constructor & Destructor Documentation

Resample::Resample	(	File *	file,
		int	channels
	)

Definition at line 11 of file resample.C.

References BLACKSIZE, input, input_chunk_end, input_size, itime, last_out_end, last_ratio, old, output_allocation, output_size, output_temp, output_temp_start, and resample_init.

Resample::~Resample

(

)

Definition at line 42 of file resample.C.

References channels, input, input_chunk_end, itime, last_out_end, old, output_size, output_temp, and output_temp_start.

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Member Function Documentation

void Resample::reset

(

int

channel = -1

)

Definition at line 66 of file resample.C.

References channels, input_chunk_end, last_out_end, output_size, and resample_init.

Referenced by resample(), and File::set_audio_position().

double Resample::blackman	(	int	i,
		double	offset,
		double	fcn,
		int	l
	)

Definition at line 85 of file resample.C.

References e, M_PI, and RenderProfile::x.

Referenced by resample_chunk().

int Resample::get_output_size

(

int

channel

)

Definition at line 108 of file resample.C.

References output_size.

Referenced by ResampleEffect::process_loop(), and PitchEngine::read_samples().

void Resample::read_output	(	double *	output,
		int	channel,
		int	size
	)

Definition at line 113 of file resample.C.

References memcpy, output_size, and output_temp.

Referenced by ResampleEffect::process_loop(), and PitchEngine::read_samples().

void Resample::resample_chunk	(	double *	input,
		long	in_len,
		int	in_rate,
		int	out_rate,
		int	channel
	)

Definition at line 124 of file resample.C.

References blackfilt, blackman(), BLACKSIZE, BPC, channels, itime, last_ratio, MIN, offset, old, output_allocation, output_size, output_temp, resample_init, and RenderProfile::y.

Referenced by ResampleEffect::process_loop(), PitchEngine::read_samples(), and resample().

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int Resample::resample	(	double *	output,
		long	out_len,
		int	in_rate,
		int	out_rate,
		int	channel,
		long	in_position,
		long	out_position
	)

Definition at line 248 of file resample.C.

References file, File::get_audio_position(), input, input_size, last_out_end, output_size, output_temp, output_temp_start, read_chunk(), REPOSITION, resample_chunk(), and reset().

Referenced by File::read_samples().

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void Resample::read_chunk	(	double *	input,
		long	len,
		int &	reseek,
		int	iteration
	)			[virtual]

Definition at line 227 of file resample.C.

References File::current_channel, File::current_sample, file, input_chunk_end, File::read_samples(), and File::set_audio_position().

Referenced by resample().

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Field Documentation

double** Resample::old

Definition at line 42 of file resample.h.

Referenced by Resample(), resample_chunk(), and ~Resample().

double* Resample::itime

Definition at line 43 of file resample.h.

Referenced by Resample(), resample_chunk(), and ~Resample().

double** Resample::output_temp

Definition at line 48 of file resample.h.

Referenced by read_output(), resample(), Resample(), resample_chunk(), and ~Resample().

long* Resample::output_size

Definition at line 53 of file resample.h.

Referenced by get_output_size(), read_output(), resample(), Resample(), resample_chunk(), reset(), and ~Resample().

long* Resample::output_temp_start

Definition at line 57 of file resample.h.

Referenced by resample(), Resample(), and ~Resample().

long Resample::output_allocation

Definition at line 59 of file resample.h.

Referenced by Resample(), and resample_chunk().

double* Resample::input

Definition at line 61 of file resample.h.

Referenced by resample(), Resample(), and ~Resample().

long* Resample::input_chunk_end

Definition at line 63 of file resample.h.

Referenced by read_chunk(), Resample(), reset(), and ~Resample().

long Resample::input_size

Definition at line 64 of file resample.h.

Referenced by resample(), and Resample().

int Resample::channels

Definition at line 65 of file resample.h.

Referenced by resample_chunk(), reset(), and ~Resample().

int* Resample::resample_init

Definition at line 66 of file resample.h.

Referenced by Resample(), resample_chunk(), and reset().

double Resample::last_ratio

Definition at line 68 of file resample.h.

Referenced by Resample(), and resample_chunk().

double Resample::blackfilt[2 *BPC+1][BLACKSIZE]

Definition at line 69 of file resample.h.

Referenced by resample_chunk().

File* Resample::file

Definition at line 70 of file resample.h.

Referenced by read_chunk(), and resample().

long* Resample::last_out_end

Definition at line 73 of file resample.h.

Referenced by resample(), Resample(), reset(), and ~Resample().

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The documentation for this class was generated from the following files:

• hvirtual/cinelerra/resample.h
• hvirtual/cinelerra/resample.C