fvec.h File Reference

Vector of real-valued data. More...

Go to the source code of this file.

Data Structures
struct	fvec_t
	Buffer for real data. More...

Functions
fvec_t *	new_fvec (uint_t length)
	fvec_t buffer creation function More...
void	del_fvec (fvec_t *s)
	fvec_t buffer deletion function More...
smpl_t	fvec_get_sample (const fvec_t *s, uint_t position)
	read sample value in a buffer More...
void	fvec_set_sample (fvec_t *s, smpl_t data, uint_t position)
	write sample value in a buffer More...
smpl_t *	fvec_get_data (const fvec_t *s)
	read data from a buffer More...
void	fvec_print (const fvec_t *s)
	print out fvec data More...
void	fvec_set_all (fvec_t *s, smpl_t val)
	set all elements to a given value More...
void	fvec_zeros (fvec_t *s)
	set all elements to zero More...
void	fvec_ones (fvec_t *s)
	set all elements to ones More...
void	fvec_rev (fvec_t *s)
	revert order of vector elements More...
void	fvec_weight (fvec_t *s, const fvec_t *weight)
	apply weight to vector More...
void	fvec_copy (const fvec_t *s, fvec_t *t)
	make a copy of a vector More...
void	fvec_weighted_copy (const fvec_t *in, const fvec_t *weight, fvec_t *out)
	make a copy of a vector, applying weights to each element More...

Detailed Description

Vector of real-valued data.

This file specifies the fvec_t buffer type, which is used throughout aubio to store vector of real-valued smpl_t.

Definition in file fvec.h.

Function Documentation

del_fvec()

void del_fvec

(

fvec_t *

s

)

fvec_t buffer deletion function

Parameters

s	buffer to delete as returned by new_fvec()

Examples:

examples/aubioonset.c, examples/aubiopitch.c, examples/aubiotrack.c, io/test-sink.c, io/test-source.c, onset/test-onset.c, pitch/test-pitch.c, spectral/test-dct.c, spectral/test-fft.c, spectral/test-filterbank.c, spectral/test-filterbank_mel.c, spectral/test-mfcc.c, spectral/test-phasevoc.c, spectral/test-specdesc.c, spectral/test-tss.c, synth/test-sampler.c, synth/test-wavetable.c, tempo/test-tempo.c, temporal/test-biquad.c, temporal/test-filter.c, and test-fvec.c.

fvec_copy()

void fvec_copy	(	const fvec_t *	s,
		fvec_t *	t
	)

make a copy of a vector

Parameters

s	source vector
t	vector to copy to

Examples:

test-fvec.c.

fvec_get_data()

smpl_t* fvec_get_data

(

const fvec_t *

s

)

read data from a buffer

Parameters

s	vector to read from

Examples:

test-fvec.c.

fvec_get_sample()

smpl_t fvec_get_sample	(	const fvec_t *	s,
		uint_t	position
	)

read sample value in a buffer

Parameters

s	vector to read from
position	sample position to read from

Examples:

examples/aubioonset.c, examples/aubiopitch.c, examples/aubiotrack.c, and test-fvec.c.

fvec_ones()

void fvec_ones

(

fvec_t *

s

)

set all elements to ones

Parameters

s	vector to modify

Examples:

test-fvec.c.

fvec_print()

void fvec_print

(

const fvec_t *

s

)

print out fvec data

Parameters

s	vector to print out

Examples:

io/test-source.c, spectral/test-dct.c, spectral/test-mfcc.c, spectral/test-phasevoc.c, temporal/test-biquad.c, temporal/test-filter.c, and test-fvec.c.

fvec_rev()

void fvec_rev

(

fvec_t *

s

)

revert order of vector elements

Parameters

s	vector to revert

fvec_set_all()

void fvec_set_all	(	fvec_t *	s,
		smpl_t	val
	)

set all elements to a given value

Parameters

s	vector to modify
val	value to set elements to

Examples:

spectral/test-phasevoc.c.

fvec_set_sample()

void fvec_set_sample	(	fvec_t *	s,
		smpl_t	data,
		uint_t	position
	)

write sample value in a buffer

Parameters

s	vector to write to
data	value to write in s->data[position]
position	sample position to write to

Examples:

test-fvec.c.

fvec_weight()

void fvec_weight	(	fvec_t *	s,
		const fvec_t *	weight
	)

apply weight to vector

If the weight vector is longer than s, only the first elements are used. If the weight vector is shorter than s, the last elements of s are not weighted.

Parameters

s	vector to weight
weight	weighting coefficients

fvec_weighted_copy()

void fvec_weighted_copy	(	const fvec_t *	in,
		const fvec_t *	weight,
		fvec_t *	out
	)

make a copy of a vector, applying weights to each element

Parameters

in	input vector
weight	weights vector
out	output vector

fvec_zeros()

void fvec_zeros

(

fvec_t *

s

)

set all elements to zero

Parameters

s	vector to modify

Examples:

examples/aubioonset.c, examples/aubiopitch.c, examples/aubiotrack.c, and test-fvec.c.

new_fvec()

fvec_t* new_fvec

(

uint_t

length

)

fvec_t buffer creation function

Parameters

length

the length of the buffer to create

Examples:

examples/aubioonset.c, examples/aubiopitch.c, examples/aubiotrack.c, io/test-sink.c, io/test-source.c, onset/test-onset.c, pitch/test-pitch.c, spectral/test-dct.c, spectral/test-fft.c, spectral/test-filterbank.c, spectral/test-filterbank_mel.c, spectral/test-mfcc.c, spectral/test-phasevoc.c, spectral/test-specdesc.c, spectral/test-tss.c, synth/test-sampler.c, synth/test-wavetable.c, tempo/test-tempo.c, temporal/test-biquad.c, temporal/test-filter.c, and test-fvec.c.